======================================
| [    9.383400][  T211] softirqs last disabled at (52149): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [    9.383402][  T211] Preemption disabled at:
| [    9.383403][  T211] 0x0
| [    9.383413][  T211] Tainted: [W]=WARN
[    9.383414][  T211] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.383415][  T211] Call Trace:
[    9.383417][  T211]  <TASK>
[    9.383418][  T211]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[    9.383425][  T211]  __might_resched.cold (kernel/sched/core.c:9234)
[    9.383429][  T211]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[    9.383433][  T211]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[    9.383438][  T211]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[    9.383440][  T211]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[    9.383447][  T211]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[    9.383449][  T211]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[    9.383453][  T211]  put_chars (drivers/char/virtio_console.c:1176)
[    9.383456][  T211]  ? __send_to_port (drivers/char/virtio_console.c:654)
[    9.383457][  T211]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[    9.383460][  T211]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[    9.383465][  T211]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[    9.383473][  T211]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[    9.383476][  T211]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    9.383478][  T211]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[    9.383482][  T211]  console_emit_next_record (kernel/printk/printk.c:3183)
[    9.383486][  T211]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[    9.383487][  T211]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[    9.383491][  T211]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    9.383492][  T211]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[    9.383496][  T211]  console_flush_one_record (kernel/printk/printk.c:3268)
[    9.383500][  T211]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[    9.383502][  T211]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[    9.383507][  T211]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[    9.383510][  T211]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[    9.383512][  T211]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    9.383514][  T211]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[    9.383517][  T211]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[    9.383519][  T211]  ? vprintk_emit (kernel/printk/printk.c:2478)
[    9.383522][  T211]  vprintk_emit (kernel/printk/printk.c:2479)
[    9.383525][  T211]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[    9.383528][  T211]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[    9.383531][  T211]  _printk (kernel/printk/printk.c:2504)
[    9.383535][  T211]  ? snapshot_read.cold (user.c:?)
[    9.383538][  T211]  ? do_raw_spin_lock (./include/linux/instrumented.h:55 ./include/linux/atomic/atomic-instrumented.h:1301 ./include/asm-generic/qspinlock.h:112 kernel/locking/spinlock_debug.c:116)
[    9.383540][  T211]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[    9.383544][  T211]  ? do_raw_spin_lock (./include/linux/instrumented.h:55 ./include/linux/atomic/atomic-instrumented.h:1301 ./include/asm-generic/qspinlock.h:112 kernel/locking/spinlock_debug.c:116)
[    9.383547][  T211]  do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4))
[    9.383551][  T211]  ? exit_notify (kernel/exit.c:780)
[    9.383552][  T211]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[    9.383555][  T211]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    9.383558][  T211]  do_group_exit (kernel/exit.c:1151)
[    9.383561][  T211]  __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160)
[    9.383563][  T211]  x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232)
[    9.383565][  T211]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[    9.383569][  T211]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[    9.383572][  T211]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.383574][  T211] RIP: 0033:0x7ffa4c91a1b8
[    9.383576][  T211] Code: Unable to access opcode bytes at 0x7ffa4c91a18e.

Code starting with the faulting instruction
===========================================
[    9.383577][  T211] RSP: 002b:00007fffb697c318 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
[    9.383580][  T211] RAX: ffffffffffffffda RBX: 00007ffa4ca4af88 RCX: 00007ffa4c91a1b8
[    9.383581][  T211] RDX: 00007ffa4c664fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000
[    9.383582][  T211] RBP: 00007fffb697c370 R08: 0000000000000000 R09: 0000000000008010
[    9.383583][  T211] R10: 00007fffb697c130 R11: 0000000000000246 R12: 0000000000000001
[    9.383583][  T211] R13: 0000000000000000 R14: 00007ffa4ca49680 R15: 00007ffa4ca4afa0
| [   10.699188][  T272] softirqs last disabled at (25109): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   10.699190][  T272] Preemption disabled at:
| [   10.699191][  T272] 0x0
| [   10.699200][  T272] Tainted: [W]=WARN
[   10.699201][  T272] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.699203][  T272] Call Trace:
[   10.699204][  T272]  <TASK>
[   10.699206][  T272]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   10.699212][  T272]  __might_resched.cold (kernel/sched/core.c:9234)
[   10.699216][  T272]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   10.699220][  T272]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   10.699224][  T272]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   10.699226][  T272]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.699233][  T272]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   10.699236][  T272]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.699245][  T272]  put_chars (drivers/char/virtio_console.c:1176)
[   10.699248][  T272]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   10.699249][  T272]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   10.699253][  T272]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   10.699258][  T272]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   10.699266][  T272]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   10.699268][  T272]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.699270][  T272]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.699274][  T272]  console_emit_next_record (kernel/printk/printk.c:3183)
[   10.699278][  T272]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   10.699280][  T272]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   10.699283][  T272]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.699285][  T272]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.699289][  T272]  console_flush_one_record (kernel/printk/printk.c:3268)
[   10.699293][  T272]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   10.699295][  T272]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.699300][  T272]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   10.699303][  T272]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   10.699304][  T272]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.699306][  T272]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   10.699310][  T272]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   10.699311][  T272]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   10.699314][  T272]  vprintk_emit (kernel/printk/printk.c:2479)
[   10.699317][  T272]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   10.699320][  T272]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.699323][  T272]  _printk (kernel/printk/printk.c:2504)
[   10.699327][  T272]  ? snapshot_read.cold (user.c:?)
[   10.699330][  T272]  ? do_raw_spin_lock (./include/linux/instrumented.h:55 ./include/linux/atomic/atomic-instrumented.h:1301 ./include/asm-generic/qspinlock.h:112 kernel/locking/spinlock_debug.c:116)
[   10.699332][  T272]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   10.699336][  T272]  ? do_raw_spin_lock (./include/linux/instrumented.h:55 ./include/linux/atomic/atomic-instrumented.h:1301 ./include/asm-generic/qspinlock.h:112 kernel/locking/spinlock_debug.c:116)
[   10.699338][  T272]  do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4))
[   10.699342][  T272]  ? exit_notify (kernel/exit.c:780)
[   10.699344][  T272]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   10.699346][  T272]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.699350][  T272]  do_group_exit (kernel/exit.c:1151)
[   10.699352][  T272]  __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160)
[   10.699354][  T272]  x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232)
[   10.699357][  T272]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   10.699361][  T272]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   10.699363][  T272]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   10.699365][  T272] RIP: 0033:0x7f0334c581b8
[   10.699367][  T272] Code: Unable to access opcode bytes at 0x7f0334c5818e.

Code starting with the faulting instruction
===========================================
[   10.699369][  T272] RSP: 002b:00007ffdac371d88 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
[   10.699371][  T272] RAX: ffffffffffffffda RBX: 00007f0334d88f88 RCX: 00007f0334c581b8
[   10.699372][  T272] RDX: 00007f03349a2fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000
[   10.699373][  T272] RBP: 00007ffdac371de0 R08: 0000000000000000 R09: 0000000000008010
[   10.699374][  T272] R10: 00007ffdac371ba0 R11: 0000000000000246 R12: 0000000000000001
[   10.699375][  T272] R13: 0000000000000000 R14: 00007f0334d87680 R15: 00007f0334d88fa0
| [   22.527423][  T557] softirqs last disabled at (17826): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   22.527426][  T557] Preemption disabled at:
| [   22.527427][  T557] vprintk_emit (kernel/printk/printk.c:2471)
| [   22.527438][  T557] Tainted: [W]=WARN
[   22.527439][  T557] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   22.527441][  T557] Call Trace:
[   22.527443][  T557]  <TASK>
[   22.527445][  T557]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   22.527453][  T557]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   22.527456][  T557]  __might_resched.cold (kernel/sched/core.c:9234)
[   22.527461][  T557]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   22.527467][  T557]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   22.527473][  T557]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   22.527477][  T557]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   22.527486][  T557]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   22.527490][  T557]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   22.527496][  T557]  put_chars (drivers/char/virtio_console.c:1176)
[   22.527500][  T557]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   22.527502][  T557]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   22.527507][  T557]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   22.527516][  T557]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   22.527529][  T557]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   22.527533][  T557]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.527536][  T557]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   22.527543][  T557]  console_emit_next_record (kernel/printk/printk.c:3183)
[   22.527549][  T557]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   22.527552][  T557]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   22.527557][  T557]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.527560][  T557]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   22.527567][  T557]  console_flush_one_record (kernel/printk/printk.c:3268)
[   22.527574][  T557]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   22.527577][  T557]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.527586][  T557]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   22.527590][  T557]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   22.527593][  T557]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.527596][  T557]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   22.527602][  T557]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   22.527605][  T557]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   22.527610][  T557]  vprintk_emit (kernel/printk/printk.c:2479)
[   22.527615][  T557]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   22.527618][  T557]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   22.527621][  T557]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   22.527626][  T557]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   22.527632][  T557]  _printk (kernel/printk/printk.c:2504)
[   22.527637][  T557]  ? snapshot_read.cold (user.c:?)
[   22.527643][  T557]  ? br_multicast_flood (??:?)
[   22.527647][  T557]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   22.527650][  T557]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   22.527652][  T557]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   22.527659][  T557]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   22.527666][  T557]  br_init_port (net/bridge/br_stp_if.c:39)
[   22.527670][  T557]  new_nbp (net/bridge/br_if.c:449)
[   22.527676][  T557]  br_add_if (net/bridge/br_if.c:592)
[   22.527680][  T557]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   22.527685][  T557]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   22.527693][  T557]  do_set_master (net/core/rtnetlink.c:3071)
[   22.527700][  T557]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   22.527705][  T557]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   22.527710][  T557]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   22.527712][  T557]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   22.527716][  T557]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   22.527721][  T557]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   22.527724][  T557]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   22.527727][  T557]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   22.527731][  T557]  ? kasan_save_stack (mm/kasan/common.c:58)
[   22.527734][  T557]  ? kasan_save_stack (mm/kasan/common.c:57)
[   22.527736][  T557]  ? kasan_save_track (mm/kasan/common.c:78)
[   22.527738][  T557]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   22.527742][  T557]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.527745][  T557]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   22.527749][  T557]  ? ___sys_sendmsg (net/socket.c:2758)
[   22.527755][  T557]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   22.527758][  T557]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   22.527762][  T557]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.527765][  T557]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   22.527768][  T557]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.527769][  T557]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.527772][  T557]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   22.527776][  T557]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   22.527778][  T557]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   22.527782][  T557]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   22.527788][  T557]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   22.527790][  T557]  ? nla_get_range_signed (lib/nlattr.c:270)
[   22.527797][  T557]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.527801][  T557]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   22.527810][  T557]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   22.527820][  T557]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   22.527823][  T557]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.527831][  T557]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   22.527834][  T557]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   22.527837][  T557]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   22.527840][  T557]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   22.527846][  T557]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   22.527850][  T557]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   22.527855][  T557]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   22.527857][  T557]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.527865][  T557]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   22.527868][  T557]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   22.527874][  T557]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   22.527879][  T557]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   22.527884][  T557]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   22.527895][  T557]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   22.527898][  T557]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   22.527906][  T557]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   22.527912][  T557]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   22.527916][  T557]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   22.527924][  T557]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   22.527931][  T557]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   22.527937][  T557]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   22.527939][  T557]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   22.527948][  T557]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   22.527952][  T557]  ____sys_sendmsg (net/socket.c:2713)
[   22.527956][  T557]  ? copy_msghdr_from_user (net/socket.c:2650)
[   22.527959][  T557]  ? sock_write_iter (net/socket.c:1269)
[   22.527962][  T557]  ? move_addr_to_kernel (net/socket.c:258)
[   22.527977][  T557]  ___sys_sendmsg (net/socket.c:2767)
[   22.527982][  T557]  ? copy_msghdr_from_user (net/socket.c:2619)
[   22.528011][  T557]  __sys_sendmsg (net/socket.c:2799)
[   22.528015][  T557]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   22.528026][  T557]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.528031][  T557]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   22.528035][  T557]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   22.528040][  T557]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   22.528043][  T557] RIP: 0033:0x7f559c4e754e
[   22.528048][  T557] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   22.528051][  T557] RSP: 002b:00007ffd7267ce00 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   22.528054][  T557] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f559c4e754e
[   22.528056][  T557] RDX: 0000000000000000 RSI: 00007ffd7267ceb0 RDI: 0000000000000005
[   22.528058][  T557] RBP: 00007ffd7267ce10 R08: 0000000000000000 R09: 0000000000000000
[   22.528059][  T557] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a9117bd
[   22.528061][  T557] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffd7267d580
| [   24.173780][  T654] softirqs last disabled at (22656): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   24.173783][  T654] Preemption disabled at:
| [   24.173783][  T654] vprintk_emit (kernel/printk/printk.c:2471)
| [   24.173792][  T654] Tainted: [W]=WARN
[   24.173792][  T654] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   24.173794][  T654] Call Trace:
[   24.173796][  T654]  <TASK>
[   24.173797][  T654]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   24.173803][  T654]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   24.173805][  T654]  __might_resched.cold (kernel/sched/core.c:9234)
[   24.173809][  T654]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   24.173813][  T654]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   24.173818][  T654]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   24.173820][  T654]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   24.173826][  T654]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   24.173829][  T654]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   24.173833][  T654]  put_chars (drivers/char/virtio_console.c:1176)
[   24.173835][  T654]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   24.173837][  T654]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   24.173840][  T654]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   24.173846][  T654]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   24.173853][  T654]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   24.173856][  T654]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.173858][  T654]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   24.173862][  T654]  console_emit_next_record (kernel/printk/printk.c:3183)
[   24.173866][  T654]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   24.173868][  T654]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   24.173871][  T654]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.173872][  T654]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   24.173876][  T654]  console_flush_one_record (kernel/printk/printk.c:3268)
[   24.173881][  T654]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   24.173882][  T654]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   24.173888][  T654]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   24.173890][  T654]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   24.173892][  T654]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.173894][  T654]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   24.173898][  T654]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   24.173899][  T654]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   24.173902][  T654]  vprintk_emit (kernel/printk/printk.c:2479)
[   24.173905][  T654]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   24.173907][  T654]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   24.173910][  T654]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   24.173913][  T654]  _printk (kernel/printk/printk.c:2504)
[   24.173917][  T654]  ? snapshot_read.cold (user.c:?)
[   24.173920][  T654]  ? br_multicast_flood (??:?)
[   24.173924][  T654]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   24.173925][  T654]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   24.173926][  T654]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   24.173931][  T654]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   24.173935][  T654]  br_init_port (net/bridge/br_stp_if.c:39)
[   24.173938][  T654]  new_nbp (net/bridge/br_if.c:449)
[   24.173941][  T654]  br_add_if (net/bridge/br_if.c:592)
[   24.173944][  T654]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   24.173947][  T654]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   24.173953][  T654]  do_set_master (net/core/rtnetlink.c:3071)
[   24.173956][  T654]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   24.173960][  T654]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   24.173963][  T654]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   24.173964][  T654]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   24.173969][  T654]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   24.173973][  T654]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   24.173975][  T654]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   24.173977][  T654]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   24.173979][  T654]  ? kasan_save_stack (mm/kasan/common.c:58)
[   24.173982][  T654]  ? kasan_save_stack (mm/kasan/common.c:57)
[   24.173983][  T654]  ? kasan_save_track (mm/kasan/common.c:78)
[   24.173984][  T654]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   24.173986][  T654]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   24.173988][  T654]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   24.173991][  T654]  ? ___sys_sendmsg (net/socket.c:2758)
[   24.173995][  T654]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   24.173997][  T654]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   24.173999][  T654]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.174001][  T654]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   24.174002][  T654]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.174003][  T654]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.174005][  T654]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   24.174007][  T654]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   24.174010][  T654]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   24.174012][  T654]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   24.174015][  T654]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   24.174016][  T654]  ? nla_get_range_signed (lib/nlattr.c:270)
[   24.174021][  T654]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.174023][  T654]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   24.174028][  T654]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   24.174033][  T654]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   24.174035][  T654]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   24.174040][  T654]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   24.174042][  T654]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   24.174044][  T654]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   24.174045][  T654]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   24.174049][  T654]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   24.174051][  T654]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   24.174054][  T654]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   24.174055][  T654]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   24.174060][  T654]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   24.174062][  T654]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   24.174065][  T654]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   24.174068][  T654]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   24.174071][  T654]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   24.174078][  T654]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   24.174080][  T654]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   24.174084][  T654]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   24.174088][  T654]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   24.174091][  T654]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   24.174095][  T654]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   24.174099][  T654]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   24.174103][  T654]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   24.174104][  T654]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   24.174110][  T654]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   24.174112][  T654]  ____sys_sendmsg (net/socket.c:2713)
[   24.174115][  T654]  ? copy_msghdr_from_user (net/socket.c:2650)
[   24.174117][  T654]  ? sock_write_iter (net/socket.c:1269)
[   24.174118][  T654]  ? move_addr_to_kernel (net/socket.c:258)
[   24.174126][  T654]  ___sys_sendmsg (net/socket.c:2767)
[   24.174129][  T654]  ? copy_msghdr_from_user (net/socket.c:2619)
[   24.174145][  T654]  __sys_sendmsg (net/socket.c:2799)
[   24.174147][  T654]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   24.174154][  T654]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.174157][  T654]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   24.174160][  T654]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   24.174162][  T654]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   24.174165][  T654] RIP: 0033:0x7f24a9adc54e
[   24.174168][  T654] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   24.174170][  T654] RSP: 002b:00007ffd8b9d2fd0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   24.174173][  T654] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f24a9adc54e
[   24.174174][  T654] RDX: 0000000000000000 RSI: 00007ffd8b9d3080 RDI: 0000000000000005
[   24.174175][  T654] RBP: 00007ffd8b9d2fe0 R08: 0000000000000000 R09: 0000000000000000
[   24.174176][  T654] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a9117bf
[   24.174177][  T654] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffd8b9d3750
| [   25.492047][  T724] softirqs last disabled at (34918): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   25.492049][  T724] Preemption disabled at:
| [   25.492050][  T724] vprintk_emit (kernel/printk/printk.c:2471)
| [   25.492058][  T724] Tainted: [W]=WARN
[   25.492059][  T724] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   25.492060][  T724] Call Trace:
[   25.492062][  T724]  <TASK>
[   25.492063][  T724]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   25.492069][  T724]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   25.492071][  T724]  __might_resched.cold (kernel/sched/core.c:9234)
[   25.492075][  T724]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   25.492079][  T724]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   25.492083][  T724]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   25.492085][  T724]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   25.492092][  T724]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   25.492094][  T724]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   25.492098][  T724]  put_chars (drivers/char/virtio_console.c:1176)
[   25.492100][  T724]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   25.492102][  T724]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   25.492105][  T724]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   25.492110][  T724]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   25.492118][  T724]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   25.492120][  T724]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   25.492122][  T724]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   25.492126][  T724]  console_emit_next_record (kernel/printk/printk.c:3183)
[   25.492130][  T724]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   25.492132][  T724]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   25.492135][  T724]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   25.492137][  T724]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   25.492140][  T724]  console_flush_one_record (kernel/printk/printk.c:3268)
[   25.492144][  T724]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   25.492146][  T724]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   25.492151][  T724]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   25.492154][  T724]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   25.492156][  T724]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   25.492158][  T724]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   25.492161][  T724]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   25.492163][  T724]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   25.492165][  T724]  vprintk_emit (kernel/printk/printk.c:2479)
[   25.492168][  T724]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   25.492170][  T724]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   25.492173][  T724]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   25.492176][  T724]  _printk (kernel/printk/printk.c:2504)
[   25.492180][  T724]  ? snapshot_read.cold (user.c:?)
[   25.492184][  T724]  ? br_multicast_flood (??:?)
[   25.492187][  T724]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   25.492188][  T724]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   25.492189][  T724]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   25.492193][  T724]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   25.492197][  T724]  br_init_port (net/bridge/br_stp_if.c:39)
[   25.492199][  T724]  new_nbp (net/bridge/br_if.c:449)
[   25.492203][  T724]  br_add_if (net/bridge/br_if.c:592)
[   25.492206][  T724]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   25.492209][  T724]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   25.492214][  T724]  do_set_master (net/core/rtnetlink.c:3071)
[   25.492218][  T724]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   25.492221][  T724]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   25.492224][  T724]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   25.492225][  T724]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   25.492228][  T724]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   25.492231][  T724]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   25.492233][  T724]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   25.492235][  T724]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   25.492237][  T724]  ? kasan_save_stack (mm/kasan/common.c:58)
[   25.492239][  T724]  ? kasan_save_stack (mm/kasan/common.c:57)
[   25.492241][  T724]  ? kasan_save_track (mm/kasan/common.c:78)
[   25.492242][  T724]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   25.492244][  T724]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   25.492246][  T724]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   25.492249][  T724]  ? ___sys_sendmsg (net/socket.c:2758)
[   25.492252][  T724]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   25.492254][  T724]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   25.492257][  T724]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   25.492259][  T724]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   25.492260][  T724]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   25.492261][  T724]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   25.492263][  T724]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   25.492265][  T724]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   25.492268][  T724]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   25.492270][  T724]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   25.492273][  T724]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   25.492274][  T724]  ? nla_get_range_signed (lib/nlattr.c:270)
[   25.492279][  T724]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   25.492281][  T724]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   25.492286][  T724]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   25.492291][  T724]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   25.492293][  T724]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   25.492298][  T724]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   25.492299][  T724]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   25.492302][  T724]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   25.492303][  T724]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   25.492311][  T724]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   25.492313][  T724]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   25.492316][  T724]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   25.492317][  T724]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   25.492321][  T724]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   25.492323][  T724]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   25.492327][  T724]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   25.492330][  T724]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   25.492332][  T724]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   25.492339][  T724]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   25.492341][  T724]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   25.492345][  T724]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   25.492349][  T724]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   25.492351][  T724]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   25.492355][  T724]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   25.492359][  T724]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   25.492363][  T724]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   25.492365][  T724]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   25.492370][  T724]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   25.492372][  T724]  ____sys_sendmsg (net/socket.c:2713)
[   25.492375][  T724]  ? copy_msghdr_from_user (net/socket.c:2650)
[   25.492377][  T724]  ? sock_write_iter (net/socket.c:1269)
[   25.492379][  T724]  ? move_addr_to_kernel (net/socket.c:258)
[   25.492386][  T724]  ___sys_sendmsg (net/socket.c:2767)
[   25.492389][  T724]  ? copy_msghdr_from_user (net/socket.c:2619)
[   25.492404][  T724]  __sys_sendmsg (net/socket.c:2799)
[   25.492407][  T724]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   25.492413][  T724]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   25.492416][  T724]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   25.492419][  T724]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   25.492422][  T724]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   25.492424][  T724] RIP: 0033:0x7f633059e54e
[   25.492428][  T724] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   25.492429][  T724] RSP: 002b:00007fffacc706e0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   25.492432][  T724] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f633059e54e
[   25.492433][  T724] RDX: 0000000000000000 RSI: 00007fffacc70790 RDI: 0000000000000005
[   25.492434][  T724] RBP: 00007fffacc706f0 R08: 0000000000000000 R09: 0000000000000000
[   25.492435][  T724] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a9117c0
[   25.492436][  T724] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fffacc70e60
| [   26.747489][  T798] softirqs last disabled at (16846): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   26.747492][  T798] Preemption disabled at:
| [   26.747492][  T798] vprintk_emit (kernel/printk/printk.c:2471)
| [   26.747500][  T798] Tainted: [W]=WARN
[   26.747501][  T798] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   26.747503][  T798] Call Trace:
[   26.747504][  T798]  <TASK>
[   26.747506][  T798]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   26.747511][  T798]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   26.747513][  T798]  __might_resched.cold (kernel/sched/core.c:9234)
[   26.747517][  T798]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   26.747522][  T798]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   26.747526][  T798]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   26.747528][  T798]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   26.747534][  T798]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   26.747537][  T798]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   26.747541][  T798]  put_chars (drivers/char/virtio_console.c:1176)
[   26.747543][  T798]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   26.747544][  T798]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   26.747548][  T798]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   26.747553][  T798]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   26.747561][  T798]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   26.747564][  T798]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.747566][  T798]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   26.747570][  T798]  console_emit_next_record (kernel/printk/printk.c:3183)
[   26.747574][  T798]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   26.747576][  T798]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   26.747579][  T798]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.747580][  T798]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   26.747584][  T798]  console_flush_one_record (kernel/printk/printk.c:3268)
[   26.747588][  T798]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   26.747590][  T798]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   26.747595][  T798]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   26.747598][  T798]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   26.747600][  T798]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.747602][  T798]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   26.747605][  T798]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   26.747607][  T798]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   26.747610][  T798]  vprintk_emit (kernel/printk/printk.c:2479)
[   26.747613][  T798]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   26.747615][  T798]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   26.747617][  T798]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   26.747621][  T798]  _printk (kernel/printk/printk.c:2504)
[   26.747624][  T798]  ? snapshot_read.cold (user.c:?)
[   26.747628][  T798]  ? br_multicast_flood (??:?)
[   26.747631][  T798]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   26.747632][  T798]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   26.747634][  T798]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   26.747638][  T798]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   26.747642][  T798]  br_init_port (net/bridge/br_stp_if.c:39)
[   26.747644][  T798]  new_nbp (net/bridge/br_if.c:449)
[   26.747648][  T798]  br_add_if (net/bridge/br_if.c:592)
[   26.747650][  T798]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   26.747654][  T798]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   26.747659][  T798]  do_set_master (net/core/rtnetlink.c:3071)
[   26.747663][  T798]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   26.747666][  T798]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   26.747669][  T798]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   26.747670][  T798]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   26.747673][  T798]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   26.747676][  T798]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   26.747678][  T798]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   26.747680][  T798]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   26.747683][  T798]  ? kasan_save_stack (mm/kasan/common.c:58)
[   26.747685][  T798]  ? kasan_save_stack (mm/kasan/common.c:57)
[   26.747686][  T798]  ? kasan_save_track (mm/kasan/common.c:78)
[   26.747687][  T798]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   26.747690][  T798]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   26.747692][  T798]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   26.747694][  T798]  ? ___sys_sendmsg (net/socket.c:2758)
[   26.747698][  T798]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   26.747700][  T798]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   26.747702][  T798]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.747704][  T798]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   26.747706][  T798]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.747707][  T798]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.747708][  T798]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   26.747711][  T798]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   26.747713][  T798]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   26.747715][  T798]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   26.747718][  T798]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   26.747720][  T798]  ? nla_get_range_signed (lib/nlattr.c:270)
[   26.747725][  T798]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.747727][  T798]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   26.747732][  T798]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   26.747737][  T798]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   26.747739][  T798]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   26.747744][  T798]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   26.747745][  T798]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   26.747748][  T798]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   26.747749][  T798]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   26.747753][  T798]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   26.747755][  T798]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   26.747758][  T798]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   26.747759][  T798]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   26.747764][  T798]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   26.747766][  T798]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   26.747769][  T798]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   26.747772][  T798]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   26.747775][  T798]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   26.747781][  T798]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   26.747783][  T798]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   26.747788][  T798]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   26.747792][  T798]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   26.747794][  T798]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   26.747798][  T798]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   26.747802][  T798]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   26.747806][  T798]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   26.747808][  T798]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   26.747813][  T798]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   26.747816][  T798]  ____sys_sendmsg (net/socket.c:2713)
[   26.747818][  T798]  ? copy_msghdr_from_user (net/socket.c:2650)
[   26.747820][  T798]  ? sock_write_iter (net/socket.c:1269)
[   26.747822][  T798]  ? move_addr_to_kernel (net/socket.c:258)
[   26.747829][  T798]  ___sys_sendmsg (net/socket.c:2767)
[   26.747832][  T798]  ? copy_msghdr_from_user (net/socket.c:2619)
[   26.747848][  T798]  __sys_sendmsg (net/socket.c:2799)
[   26.747851][  T798]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   26.747857][  T798]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.747860][  T798]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   26.747863][  T798]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   26.747866][  T798]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   26.747868][  T798] RIP: 0033:0x7f9e9b8f654e
[   26.747872][  T798] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   26.747873][  T798] RSP: 002b:00007fff07147000 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   26.747876][  T798] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f9e9b8f654e
[   26.747877][  T798] RDX: 0000000000000000 RSI: 00007fff071470b0 RDI: 0000000000000005
[   26.747878][  T798] RBP: 00007fff07147010 R08: 0000000000000000 R09: 0000000000000000
[   26.747879][  T798] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a9117c2
[   26.747880][  T798] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fff07147780
| [   28.078039][   T12] softirqs last disabled at (28714): inet6_fill_ifla6_attrs (net/ipv6/addrconf.c:5883)
| [   28.078041][   T12] Preemption disabled at:
| [   28.078041][   T12] vprintk_emit (kernel/printk/printk.c:2471)
| [   28.078050][   T12] Tainted: [W]=WARN
[   28.078051][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   28.078052][   T12] Workqueue: netns cleanup_net
[   28.078055][   T12] Call Trace:
[   28.078057][   T12]  <TASK>
[   28.078059][   T12]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   28.078065][   T12]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   28.078066][   T12]  __might_resched.cold (kernel/sched/core.c:9234)
[   28.078071][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   28.078075][   T12]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   28.078079][   T12]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   28.078081][   T12]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   28.078087][   T12]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   28.078090][   T12]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   28.078094][   T12]  put_chars (drivers/char/virtio_console.c:1176)
[   28.078096][   T12]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   28.078099][   T12]  ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928)
[   28.078104][   T12]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   28.078108][   T12]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   28.078113][   T12]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   28.078116][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.078122][   T12]  console_emit_next_record (kernel/printk/printk.c:3183)
[   28.078126][   T12]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   28.078128][   T12]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   28.078131][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.078133][   T12]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   28.078137][   T12]  console_flush_one_record (kernel/printk/printk.c:3268)
[   28.078141][   T12]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   28.078143][   T12]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   28.078148][   T12]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   28.078151][   T12]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   28.078153][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.078154][   T12]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   28.078158][   T12]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   28.078160][   T12]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   28.078163][   T12]  vprintk_emit (kernel/printk/printk.c:2479)
[   28.078166][   T12]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   28.078167][   T12]  ? cleanup_net (net/core/net_namespace.c:706)
[   28.078169][   T12]  ? worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   28.078171][   T12]  ? kthread (kernel/kthread.c:436)
[   28.078173][   T12]  ? ret_from_fork (arch/x86/kernel/process.c:158)
[   28.078176][   T12]  ? ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
[   28.078180][   T12]  _printk (kernel/printk/printk.c:2504)
[   28.078184][   T12]  ? snapshot_read.cold (user.c:?)
[   28.078188][   T12]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   28.078192][   T12]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   28.078196][   T12]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   28.078199][   T12]  ? netdev_notice (net/core/dev.c:13194)
[   28.078203][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.078205][   T12]  ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1))
[   28.078207][   T12]  ? down_write_nested (kernel/locking/rwsem.c:1759)
[   28.078209][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   28.078212][   T12]  netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3))
[   28.078216][   T12]  dev_set_allmulti (net/core/dev_api.c:315)
[   28.078219][   T12]  del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341)
[   28.078225][   T12]  br_dev_delete (net/bridge/br_if.c:387)
[   28.078228][   T12]  br_net_exit_rtnl (net/bridge/br.c:414)
[   28.078232][   T12]  ops_undo_list (net/core/net_namespace.c:181 net/core/net_namespace.c:249)
[   28.078235][   T12]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   28.078239][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   28.078241][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   28.078244][   T12]  ? idr_destroy (lib/radix-tree.c:310 lib/radix-tree.c:674 lib/radix-tree.c:1563)
[   28.078248][   T12]  cleanup_net (net/core/net_namespace.c:706)
[   28.078251][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   28.078255][   T12]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   28.078257][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.078260][   T12]  process_one_work (kernel/workqueue.c:3387)
[   28.078267][   T12]  ? __queue_delayed_work (kernel/workqueue.c:2622)
[   28.078270][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   28.078277][   T12]  worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   28.078285][   T12]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   28.078287][   T12]  kthread (kernel/kthread.c:436)
[   28.078289][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   28.078291][   T12]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   28.078294][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   28.078297][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1))
[   28.078300][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   28.078304][   T12]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   28.078306][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   29.459005][  T934] softirqs last disabled at (19774): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   29.459007][  T934] Preemption disabled at:
| [   29.459008][  T934] vprintk_emit (kernel/printk/printk.c:2471)
| [   29.459016][  T934] Tainted: [W]=WARN
[   29.459017][  T934] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   29.459019][  T934] Call Trace:
[   29.459021][  T934]  <TASK>
[   29.459022][  T934]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   29.459028][  T934]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   29.459030][  T934]  __might_resched.cold (kernel/sched/core.c:9234)
[   29.459035][  T934]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   29.459039][  T934]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   29.459043][  T934]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   29.459045][  T934]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   29.459052][  T934]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   29.459055][  T934]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   29.459058][  T934]  put_chars (drivers/char/virtio_console.c:1176)
[   29.459061][  T934]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   29.459067][  T934]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   29.459074][  T934]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   29.459078][  T934]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   29.459082][  T934]  console_emit_next_record (kernel/printk/printk.c:3183)
[   29.459086][  T934]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   29.459088][  T934]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   29.459091][  T934]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.459094][  T934]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   29.459098][  T934]  console_flush_one_record (kernel/printk/printk.c:3268)
[   29.459102][  T934]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   29.459104][  T934]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   29.459109][  T934]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   29.459112][  T934]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   29.459114][  T934]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.459115][  T934]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   29.459119][  T934]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   29.459121][  T934]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   29.459123][  T934]  vprintk_emit (kernel/printk/printk.c:2479)
[   29.459126][  T934]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   29.459128][  T934]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   29.459130][  T934]  ? lock_pin_lock (kernel/locking/lockdep.c:5640 (discriminator 2) kernel/locking/lockdep.c:6003 (discriminator 2) kernel/locking/lockdep.c:5991 (discriminator 2))
[   29.459132][  T934]  ? __print_lock_name (kernel/locking/lockdep.c:718)
[   29.459136][  T934]  _printk (kernel/printk/printk.c:2504)
[   29.459140][  T934]  ? snapshot_read.cold (user.c:?)
[   29.459141][  T934]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   29.459144][  T934]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   29.459147][  T934]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   29.459149][  T934]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   29.459152][  T934]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   29.459155][  T934]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   29.459157][  T934]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   29.459160][  T934]  ? netdev_notice (net/core/dev.c:13194)
[   29.459163][  T934]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   29.459166][  T934]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   29.459168][  T934]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   29.459172][  T934]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   29.459174][  T934]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   29.459176][  T934]  ? is_bpf_text_address (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) kernel/bpf/core.c:751 (discriminator 2))
[   29.459181][  T934]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   29.459184][  T934]  ? __kernel_text_address (kernel/extable.c:79)
[   29.459186][  T934]  ? write_profile (profile.c:?)
[   29.459190][  T934]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   29.459196][  T934]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   29.459199][  T934]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   29.459201][  T934]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   29.459203][  T934]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   29.459204][  T934]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   29.459208][  T934]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   29.459209][  T934]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   29.459211][  T934]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   29.459214][  T934]  ? kasan_save_stack (mm/kasan/common.c:58)
[   29.459215][  T934]  ? kasan_save_stack (mm/kasan/common.c:57)
[   29.459217][  T934]  ? kasan_save_track (mm/kasan/common.c:78)
[   29.459218][  T934]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   29.459220][  T934]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   29.459222][  T934]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   29.459225][  T934]  ? ___sys_sendmsg (net/socket.c:2758)
[   29.459229][  T934]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   29.459231][  T934]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   29.459233][  T934]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.459235][  T934]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   29.459237][  T934]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.459238][  T934]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.459239][  T934]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   29.459241][  T934]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   29.459244][  T934]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   29.459246][  T934]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   29.459249][  T934]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   29.459250][  T934]  ? nla_get_range_signed (lib/nlattr.c:270)
[   29.459255][  T934]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.459257][  T934]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   29.459262][  T934]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   29.459268][  T934]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   29.459270][  T934]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   29.459274][  T934]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   29.459276][  T934]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   29.459278][  T934]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   29.459280][  T934]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   29.459283][  T934]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   29.459285][  T934]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   29.459289][  T934]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   29.459290][  T934]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   29.459294][  T934]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   29.459296][  T934]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   29.459300][  T934]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   29.459303][  T934]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   29.459305][  T934]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   29.459312][  T934]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   29.459314][  T934]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   29.459318][  T934]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   29.459326][  T934]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   29.459328][  T934]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   29.459333][  T934]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   29.459337][  T934]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   29.459341][  T934]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   29.459342][  T934]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   29.459347][  T934]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   29.459350][  T934]  ____sys_sendmsg (net/socket.c:2713)
[   29.459352][  T934]  ? copy_msghdr_from_user (net/socket.c:2650)
[   29.459355][  T934]  ? sock_write_iter (net/socket.c:1269)
[   29.459356][  T934]  ? move_addr_to_kernel (net/socket.c:258)
[   29.459363][  T934]  ___sys_sendmsg (net/socket.c:2767)
[   29.459366][  T934]  ? copy_msghdr_from_user (net/socket.c:2619)
[   29.459382][  T934]  __sys_sendmsg (net/socket.c:2799)
[   29.459385][  T934]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   29.459391][  T934]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.459394][  T934]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   29.459397][  T934]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   29.459400][  T934]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   29.459402][  T934] RIP: 0033:0x7f11c16e954e
[   29.459406][  T934] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   29.459407][  T934] RSP: 002b:00007ffd6ea87900 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   29.459410][  T934] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f11c16e954e
[   29.459411][  T934] RDX: 0000000000000000 RSI: 00007ffd6ea879b0 RDI: 0000000000000005
[   29.459412][  T934] RBP: 00007ffd6ea87910 R08: 0000000000000000 R09: 0000000000000000
[   29.459413][  T934] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a9117c4
[   29.459414][  T934] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffd6ea88080
| [   41.279994][ T1242] softirqs last disabled at (27048): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   41.279996][ T1242] Preemption disabled at:
| [   41.279997][ T1242] vprintk_emit (kernel/printk/printk.c:2471)
| [   41.280005][ T1242] Tainted: [W]=WARN
[   41.280006][ T1242] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   41.280007][ T1242] Call Trace:
[   41.280009][ T1242]  <TASK>
[   41.280011][ T1242]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   41.280017][ T1242]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   41.280018][ T1242]  __might_resched.cold (kernel/sched/core.c:9234)
[   41.280023][ T1242]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   41.280027][ T1242]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   41.280031][ T1242]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   41.280033][ T1242]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   41.280040][ T1242]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   41.280042][ T1242]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   41.280046][ T1242]  put_chars (drivers/char/virtio_console.c:1176)
[   41.280049][ T1242]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   41.280050][ T1242]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   41.280053][ T1242]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   41.280059][ T1242]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   41.280066][ T1242]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   41.280069][ T1242]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   41.280071][ T1242]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   41.280075][ T1242]  console_emit_next_record (kernel/printk/printk.c:3183)
[   41.280079][ T1242]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   41.280081][ T1242]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   41.280084][ T1242]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   41.280086][ T1242]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   41.280090][ T1242]  console_flush_one_record (kernel/printk/printk.c:3268)
[   41.280094][ T1242]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   41.280096][ T1242]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   41.280101][ T1242]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   41.280104][ T1242]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   41.280106][ T1242]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   41.280108][ T1242]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   41.280111][ T1242]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   41.280113][ T1242]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   41.280116][ T1242]  vprintk_emit (kernel/printk/printk.c:2479)
[   41.280119][ T1242]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   41.280121][ T1242]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   41.280123][ T1242]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   41.280127][ T1242]  _printk (kernel/printk/printk.c:2504)
[   41.280130][ T1242]  ? snapshot_read.cold (user.c:?)
[   41.280134][ T1242]  ? br_multicast_flood (??:?)
[   41.280137][ T1242]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   41.280139][ T1242]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   41.280140][ T1242]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   41.280144][ T1242]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   41.280148][ T1242]  br_init_port (net/bridge/br_stp_if.c:39)
[   41.280151][ T1242]  new_nbp (net/bridge/br_if.c:449)
[   41.280154][ T1242]  br_add_if (net/bridge/br_if.c:592)
[   41.280157][ T1242]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   41.280160][ T1242]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   41.280166][ T1242]  do_set_master (net/core/rtnetlink.c:3071)
[   41.280169][ T1242]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   41.280173][ T1242]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   41.280176][ T1242]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   41.280177][ T1242]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   41.280180][ T1242]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   41.280183][ T1242]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   41.280185][ T1242]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   41.280187][ T1242]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   41.280189][ T1242]  ? kasan_save_stack (mm/kasan/common.c:58)
[   41.280192][ T1242]  ? kasan_save_stack (mm/kasan/common.c:57)
[   41.280193][ T1242]  ? kasan_save_track (mm/kasan/common.c:78)
[   41.280194][ T1242]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   41.280196][ T1242]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   41.280198][ T1242]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   41.280201][ T1242]  ? ___sys_sendmsg (net/socket.c:2758)
[   41.280205][ T1242]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   41.280207][ T1242]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   41.280209][ T1242]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   41.280211][ T1242]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   41.280213][ T1242]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   41.280214][ T1242]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   41.280215][ T1242]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   41.280218][ T1242]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   41.280220][ T1242]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   41.280222][ T1242]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   41.280225][ T1242]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   41.280226][ T1242]  ? nla_get_range_signed (lib/nlattr.c:270)
[   41.280231][ T1242]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   41.280233][ T1242]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   41.280239][ T1242]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   41.280244][ T1242]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   41.280246][ T1242]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   41.280250][ T1242]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   41.280252][ T1242]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   41.280255][ T1242]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   41.280256][ T1242]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   41.280260][ T1242]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   41.280262][ T1242]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   41.280265][ T1242]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   41.280267][ T1242]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   41.280271][ T1242]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   41.280273][ T1242]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   41.280276][ T1242]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   41.280280][ T1242]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   41.280283][ T1242]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   41.280289][ T1242]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   41.280291][ T1242]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   41.280296][ T1242]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   41.280300][ T1242]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   41.280302][ T1242]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   41.280307][ T1242]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   41.280311][ T1242]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   41.280314][ T1242]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   41.280316][ T1242]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   41.280321][ T1242]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   41.280324][ T1242]  ____sys_sendmsg (net/socket.c:2713)
[   41.280326][ T1242]  ? copy_msghdr_from_user (net/socket.c:2650)
[   41.280329][ T1242]  ? sock_write_iter (net/socket.c:1269)
[   41.280330][ T1242]  ? move_addr_to_kernel (net/socket.c:258)
[   41.280338][ T1242]  ___sys_sendmsg (net/socket.c:2767)
[   41.280341][ T1242]  ? copy_msghdr_from_user (net/socket.c:2619)
[   41.280357][ T1242]  __sys_sendmsg (net/socket.c:2799)
[   41.280360][ T1242]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   41.280366][ T1242]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   41.280369][ T1242]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   41.280372][ T1242]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   41.280378][ T1242]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   41.280381][ T1242] RIP: 0033:0x7f71b022b54e
[   41.280384][ T1242] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   41.280386][ T1242] RSP: 002b:00007ffd587b84d0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   41.280389][ T1242] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f71b022b54e
[   41.280390][ T1242] RDX: 0000000000000000 RSI: 00007ffd587b8580 RDI: 0000000000000005
[   41.280391][ T1242] RBP: 00007ffd587b84e0 R08: 0000000000000000 R09: 0000000000000000
[   41.280392][ T1242] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a9117d0
[   41.280392][ T1242] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffd587b8c50
| [   42.596102][ T1331] softirqs last disabled at (16216): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   42.596104][ T1331] Preemption disabled at:
| [   42.596105][ T1331] vprintk_emit (kernel/printk/printk.c:2471)
| [   42.596113][ T1331] Tainted: [W]=WARN
[   42.596114][ T1331] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   42.596116][ T1331] Call Trace:
[   42.596117][ T1331]  <TASK>
[   42.596119][ T1331]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   42.596124][ T1331]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   42.596126][ T1331]  __might_resched.cold (kernel/sched/core.c:9234)
[   42.596130][ T1331]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   42.596134][ T1331]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   42.596138][ T1331]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   42.596140][ T1331]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   42.596147][ T1331]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   42.596150][ T1331]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   42.596153][ T1331]  put_chars (drivers/char/virtio_console.c:1176)
[   42.596156][ T1331]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   42.596157][ T1331]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   42.596160][ T1331]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   42.596166][ T1331]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   42.596173][ T1331]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   42.596176][ T1331]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   42.596178][ T1331]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   42.596182][ T1331]  console_emit_next_record (kernel/printk/printk.c:3183)
[   42.596186][ T1331]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   42.596187][ T1331]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   42.596190][ T1331]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   42.596192][ T1331]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   42.596196][ T1331]  console_flush_one_record (kernel/printk/printk.c:3268)
[   42.596200][ T1331]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   42.596202][ T1331]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   42.596207][ T1331]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   42.596209][ T1331]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   42.596211][ T1331]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   42.596213][ T1331]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   42.596216][ T1331]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   42.596218][ T1331]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   42.596221][ T1331]  vprintk_emit (kernel/printk/printk.c:2479)
[   42.596226][ T1331]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   42.596228][ T1331]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   42.596230][ T1331]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   42.596234][ T1331]  _printk (kernel/printk/printk.c:2504)
[   42.596238][ T1331]  ? snapshot_read.cold (user.c:?)
[   42.596241][ T1331]  ? br_multicast_flood (??:?)
[   42.596245][ T1331]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   42.596246][ T1331]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   42.596247][ T1331]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   42.596252][ T1331]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   42.596256][ T1331]  br_init_port (net/bridge/br_stp_if.c:39)
[   42.596258][ T1331]  new_nbp (net/bridge/br_if.c:449)
[   42.596262][ T1331]  br_add_if (net/bridge/br_if.c:592)
[   42.596264][ T1331]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   42.596268][ T1331]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   42.596273][ T1331]  do_set_master (net/core/rtnetlink.c:3071)
[   42.596276][ T1331]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   42.596279][ T1331]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   42.596283][ T1331]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   42.596284][ T1331]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   42.596287][ T1331]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   42.596290][ T1331]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   42.596292][ T1331]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   42.596294][ T1331]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   42.596296][ T1331]  ? kasan_save_stack (mm/kasan/common.c:58)
[   42.596299][ T1331]  ? kasan_save_stack (mm/kasan/common.c:57)
[   42.596300][ T1331]  ? kasan_save_track (mm/kasan/common.c:78)
[   42.596301][ T1331]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   42.596303][ T1331]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   42.596305][ T1331]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   42.596308][ T1331]  ? ___sys_sendmsg (net/socket.c:2758)
[   42.596312][ T1331]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   42.596314][ T1331]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   42.596316][ T1331]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   42.596318][ T1331]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   42.596319][ T1331]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   42.596321][ T1331]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   42.596322][ T1331]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   42.596324][ T1331]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   42.596327][ T1331]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   42.596329][ T1331]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   42.596332][ T1331]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   42.596333][ T1331]  ? nla_get_range_signed (lib/nlattr.c:270)
[   42.596338][ T1331]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   42.596341][ T1331]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   42.596346][ T1331]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   42.596351][ T1331]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   42.596353][ T1331]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   42.596357][ T1331]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   42.596359][ T1331]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   42.596361][ T1331]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   42.596363][ T1331]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   42.596366][ T1331]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   42.596368][ T1331]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   42.596371][ T1331]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   42.596373][ T1331]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   42.596377][ T1331]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   42.596379][ T1331]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   42.596386][ T1331]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   42.596389][ T1331]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   42.596392][ T1331]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   42.596398][ T1331]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   42.596400][ T1331]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   42.596404][ T1331]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   42.596408][ T1331]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   42.596411][ T1331]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   42.596415][ T1331]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   42.596419][ T1331]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   42.596422][ T1331]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   42.596424][ T1331]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   42.596429][ T1331]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   42.596432][ T1331]  ____sys_sendmsg (net/socket.c:2713)
[   42.596434][ T1331]  ? copy_msghdr_from_user (net/socket.c:2650)
[   42.596437][ T1331]  ? sock_write_iter (net/socket.c:1269)
[   42.596438][ T1331]  ? move_addr_to_kernel (net/socket.c:258)
[   42.596445][ T1331]  ___sys_sendmsg (net/socket.c:2767)
[   42.596448][ T1331]  ? copy_msghdr_from_user (net/socket.c:2619)
[   42.596463][ T1331]  __sys_sendmsg (net/socket.c:2799)
[   42.596466][ T1331]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   42.596472][ T1331]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   42.596475][ T1331]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   42.596478][ T1331]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   42.596481][ T1331]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   42.596483][ T1331] RIP: 0033:0x7fd14c6e554e
[   42.596486][ T1331] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   42.596488][ T1331] RSP: 002b:00007ffc2e545cf0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   42.596491][ T1331] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fd14c6e554e
[   42.596492][ T1331] RDX: 0000000000000000 RSI: 00007ffc2e545da0 RDI: 0000000000000005
[   42.596493][ T1331] RBP: 00007ffc2e545d00 R08: 0000000000000000 R09: 0000000000000000
[   42.596494][ T1331] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a9117d1
[   42.596494][ T1331] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffc2e546470
| [   43.881577][ T1406] softirqs last disabled at (16461): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   43.881579][ T1406] Preemption disabled at:
| [   43.881580][ T1406] vprintk_emit (kernel/printk/printk.c:2471)
| [   43.881588][ T1406] Tainted: [W]=WARN
[   43.881589][ T1406] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   43.881590][ T1406] Call Trace:
[   43.881592][ T1406]  <TASK>
[   43.881594][ T1406]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   43.881600][ T1406]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   43.881601][ T1406]  __might_resched.cold (kernel/sched/core.c:9234)
[   43.881606][ T1406]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   43.881610][ T1406]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   43.881614][ T1406]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   43.881616][ T1406]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   43.881622][ T1406]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   43.881625][ T1406]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   43.881628][ T1406]  put_chars (drivers/char/virtio_console.c:1176)
[   43.881631][ T1406]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   43.881632][ T1406]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   43.881635][ T1406]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   43.881641][ T1406]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   43.881648][ T1406]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   43.881651][ T1406]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   43.881653][ T1406]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   43.881657][ T1406]  console_emit_next_record (kernel/printk/printk.c:3183)
[   43.881661][ T1406]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   43.881662][ T1406]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   43.881666][ T1406]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   43.881667][ T1406]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   43.881671][ T1406]  console_flush_one_record (kernel/printk/printk.c:3268)
[   43.881675][ T1406]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   43.881677][ T1406]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   43.881682][ T1406]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   43.881685][ T1406]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   43.881687][ T1406]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   43.881688][ T1406]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   43.881692][ T1406]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   43.881694][ T1406]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   43.881696][ T1406]  vprintk_emit (kernel/printk/printk.c:2479)
[   43.881699][ T1406]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   43.881701][ T1406]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   43.881704][ T1406]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   43.881707][ T1406]  _printk (kernel/printk/printk.c:2504)
[   43.881711][ T1406]  ? snapshot_read.cold (user.c:?)
[   43.881714][ T1406]  ? br_multicast_flood (??:?)
[   43.881718][ T1406]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   43.881719][ T1406]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   43.881720][ T1406]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   43.881724][ T1406]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   43.881728][ T1406]  br_init_port (net/bridge/br_stp_if.c:39)
[   43.881731][ T1406]  new_nbp (net/bridge/br_if.c:449)
[   43.881735][ T1406]  br_add_if (net/bridge/br_if.c:592)
[   43.881737][ T1406]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   43.881741][ T1406]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   43.881746][ T1406]  do_set_master (net/core/rtnetlink.c:3071)
[   43.881749][ T1406]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   43.881753][ T1406]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   43.881756][ T1406]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   43.881757][ T1406]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   43.881760][ T1406]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   43.881763][ T1406]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   43.881765][ T1406]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   43.881767][ T1406]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   43.881769][ T1406]  ? kasan_save_stack (mm/kasan/common.c:58)
[   43.881771][ T1406]  ? kasan_save_stack (mm/kasan/common.c:57)
[   43.881773][ T1406]  ? kasan_save_track (mm/kasan/common.c:78)
[   43.881774][ T1406]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   43.881776][ T1406]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   43.881778][ T1406]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   43.881781][ T1406]  ? ___sys_sendmsg (net/socket.c:2758)
[   43.881785][ T1406]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   43.881787][ T1406]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   43.881789][ T1406]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   43.881791][ T1406]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   43.881792][ T1406]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   43.881794][ T1406]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   43.881795][ T1406]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   43.881797][ T1406]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   43.881800][ T1406]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   43.881802][ T1406]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   43.881805][ T1406]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   43.881806][ T1406]  ? nla_get_range_signed (lib/nlattr.c:270)
[   43.881811][ T1406]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   43.881813][ T1406]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   43.881818][ T1406]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   43.881823][ T1406]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   43.881825][ T1406]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   43.881829][ T1406]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   43.881831][ T1406]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   43.881833][ T1406]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   43.881835][ T1406]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   43.881839][ T1406]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   43.881841][ T1406]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   43.881844][ T1406]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   43.881845][ T1406]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   43.881849][ T1406]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   43.881851][ T1406]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   43.881854][ T1406]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   43.881858][ T1406]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   43.881860][ T1406]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   43.881867][ T1406]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   43.881869][ T1406]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   43.881873][ T1406]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   43.881877][ T1406]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   43.881880][ T1406]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   43.881884][ T1406]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   43.881888][ T1406]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   43.881891][ T1406]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   43.881893][ T1406]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   43.881898][ T1406]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   43.881901][ T1406]  ____sys_sendmsg (net/socket.c:2713)
[   43.881903][ T1406]  ? copy_msghdr_from_user (net/socket.c:2650)
[   43.881905][ T1406]  ? sock_write_iter (net/socket.c:1269)
[   43.881907][ T1406]  ? move_addr_to_kernel (net/socket.c:258)
[   43.881914][ T1406]  ___sys_sendmsg (net/socket.c:2767)
[   43.881917][ T1406]  ? copy_msghdr_from_user (net/socket.c:2619)
[   43.881932][ T1406]  __sys_sendmsg (net/socket.c:2799)
[   43.881935][ T1406]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   43.881941][ T1406]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   43.881944][ T1406]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   43.881947][ T1406]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   43.881950][ T1406]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   43.881952][ T1406] RIP: 0033:0x7fe85781054e
[   43.881956][ T1406] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   43.881957][ T1406] RSP: 002b:00007fff744b2d50 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   43.881960][ T1406] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fe85781054e
[   43.881961][ T1406] RDX: 0000000000000000 RSI: 00007fff744b2e00 RDI: 0000000000000005
[   43.881962][ T1406] RBP: 00007fff744b2d60 R08: 0000000000000000 R09: 0000000000000000
[   43.881963][ T1406] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a9117d3
[   43.881964][ T1406] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fff744b34d0
| [   45.132533][ T1475] softirqs last disabled at (25936): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   45.132535][ T1475] Preemption disabled at:
| [   45.132536][ T1475] vprintk_emit (kernel/printk/printk.c:2471)
| [   45.132544][ T1475] Tainted: [W]=WARN
[   45.132545][ T1475] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   45.132546][ T1475] Call Trace:
[   45.132548][ T1475]  <TASK>
[   45.132549][ T1475]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   45.132555][ T1475]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   45.132557][ T1475]  __might_resched.cold (kernel/sched/core.c:9234)
[   45.132561][ T1475]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   45.132565][ T1475]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   45.132570][ T1475]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   45.132571][ T1475]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   45.132578][ T1475]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   45.132581][ T1475]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   45.132584][ T1475]  put_chars (drivers/char/virtio_console.c:1176)
[   45.132587][ T1475]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   45.132588][ T1475]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   45.132591][ T1475]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   45.132597][ T1475]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   45.132605][ T1475]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   45.132607][ T1475]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   45.132609][ T1475]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   45.132613][ T1475]  console_emit_next_record (kernel/printk/printk.c:3183)
[   45.132617][ T1475]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   45.132619][ T1475]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   45.132622][ T1475]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   45.132624][ T1475]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   45.132628][ T1475]  console_flush_one_record (kernel/printk/printk.c:3268)
[   45.132632][ T1475]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   45.132634][ T1475]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   45.132639][ T1475]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   45.132642][ T1475]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   45.132643][ T1475]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   45.132645][ T1475]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   45.132649][ T1475]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   45.132650][ T1475]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   45.132653][ T1475]  vprintk_emit (kernel/printk/printk.c:2479)
[   45.132656][ T1475]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   45.132658][ T1475]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   45.132661][ T1475]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   45.132664][ T1475]  _printk (kernel/printk/printk.c:2504)
[   45.132668][ T1475]  ? snapshot_read.cold (user.c:?)
[   45.132671][ T1475]  ? br_multicast_flood (??:?)
[   45.132674][ T1475]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   45.132676][ T1475]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   45.132677][ T1475]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   45.132681][ T1475]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   45.132685][ T1475]  br_init_port (net/bridge/br_stp_if.c:39)
[   45.132688][ T1475]  new_nbp (net/bridge/br_if.c:449)
[   45.132692][ T1475]  br_add_if (net/bridge/br_if.c:592)
[   45.132694][ T1475]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   45.132698][ T1475]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   45.132703][ T1475]  do_set_master (net/core/rtnetlink.c:3071)
[   45.132707][ T1475]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   45.132710][ T1475]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   45.132713][ T1475]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   45.132714][ T1475]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   45.132717][ T1475]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   45.132721][ T1475]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   45.132722][ T1475]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   45.132724][ T1475]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   45.132726][ T1475]  ? kasan_save_stack (mm/kasan/common.c:58)
[   45.132729][ T1475]  ? kasan_save_stack (mm/kasan/common.c:57)
[   45.132730][ T1475]  ? kasan_save_track (mm/kasan/common.c:78)
[   45.132731][ T1475]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   45.132733][ T1475]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   45.132735][ T1475]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   45.132738][ T1475]  ? ___sys_sendmsg (net/socket.c:2758)
[   45.132742][ T1475]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   45.132744][ T1475]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   45.132746][ T1475]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   45.132748][ T1475]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   45.132750][ T1475]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   45.132751][ T1475]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   45.132752][ T1475]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   45.132755][ T1475]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   45.132757][ T1475]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   45.132759][ T1475]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   45.132763][ T1475]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   45.132764][ T1475]  ? nla_get_range_signed (lib/nlattr.c:270)
[   45.132769][ T1475]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   45.132771][ T1475]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   45.132776][ T1475]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   45.132781][ T1475]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   45.132783][ T1475]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   45.132788][ T1475]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   45.132789][ T1475]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   45.132792][ T1475]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   45.132793][ T1475]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   45.132797][ T1475]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   45.132799][ T1475]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   45.132802][ T1475]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   45.132803][ T1475]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   45.132808][ T1475]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   45.132810][ T1475]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   45.132813][ T1475]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   45.132817][ T1475]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   45.132819][ T1475]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   45.132826][ T1475]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   45.132828][ T1475]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   45.132832][ T1475]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   45.132836][ T1475]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   45.132839][ T1475]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   45.132843][ T1475]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   45.132847][ T1475]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   45.132851][ T1475]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   45.132852][ T1475]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   45.132858][ T1475]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   45.132860][ T1475]  ____sys_sendmsg (net/socket.c:2713)
[   45.132863][ T1475]  ? copy_msghdr_from_user (net/socket.c:2650)
[   45.132865][ T1475]  ? sock_write_iter (net/socket.c:1269)
[   45.132866][ T1475]  ? move_addr_to_kernel (net/socket.c:258)
[   45.132874][ T1475]  ___sys_sendmsg (net/socket.c:2767)
[   45.132876][ T1475]  ? copy_msghdr_from_user (net/socket.c:2619)
[   45.132893][ T1475]  __sys_sendmsg (net/socket.c:2799)
[   45.132895][ T1475]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   45.132901][ T1475]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   45.132904][ T1475]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   45.132907][ T1475]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   45.132910][ T1475]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   45.132912][ T1475] RIP: 0033:0x7f47db72a54e
[   45.132916][ T1475] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   45.132918][ T1475] RSP: 002b:00007fff9ac3ac50 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   45.132920][ T1475] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f47db72a54e
[   45.132922][ T1475] RDX: 0000000000000000 RSI: 00007fff9ac3ad00 RDI: 0000000000000005
[   45.132923][ T1475] RBP: 00007fff9ac3ac60 R08: 0000000000000000 R09: 0000000000000000
[   45.132923][ T1475] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a9117d4
[   45.132924][ T1475] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fff9ac3b3d0
| [   46.435421][   T12] softirqs last disabled at (397946): inet6_fill_ifla6_attrs (net/ipv6/addrconf.c:5883)
| [   46.435423][   T12] Preemption disabled at:
| [   46.435424][   T12] vprintk_emit (kernel/printk/printk.c:2471)
| [   46.435432][   T12] Tainted: [W]=WARN
[   46.435433][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   46.435435][   T12] Workqueue: netns cleanup_net
[   46.435438][   T12] Call Trace:
[   46.435439][   T12]  <TASK>
[   46.435442][   T12]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   46.435447][   T12]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   46.435449][   T12]  __might_resched.cold (kernel/sched/core.c:9234)
[   46.435454][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   46.435457][   T12]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   46.435462][   T12]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   46.435463][   T12]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   46.435470][   T12]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   46.435473][   T12]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   46.435477][   T12]  put_chars (drivers/char/virtio_console.c:1176)
[   46.435479][   T12]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   46.435480][   T12]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   46.435484][   T12]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   46.435487][   T12]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   46.435492][   T12]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   46.435496][   T12]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   46.435501][   T12]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   46.435504][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   46.435509][   T12]  console_emit_next_record (kernel/printk/printk.c:3183)
[   46.435513][   T12]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   46.435515][   T12]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   46.435518][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   46.435520][   T12]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   46.435524][   T12]  console_flush_one_record (kernel/printk/printk.c:3268)
[   46.435528][   T12]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   46.435530][   T12]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   46.435535][   T12]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   46.435538][   T12]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   46.435540][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   46.435541][   T12]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   46.435545][   T12]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   46.435547][   T12]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   46.435550][   T12]  vprintk_emit (kernel/printk/printk.c:2479)
[   46.435553][   T12]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   46.435554][   T12]  ? cleanup_net (net/core/net_namespace.c:706)
[   46.435556][   T12]  ? worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   46.435557][   T12]  ? kthread (kernel/kthread.c:436)
[   46.435560][   T12]  ? ret_from_fork (arch/x86/kernel/process.c:158)
[   46.435563][   T12]  ? ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
[   46.435567][   T12]  _printk (kernel/printk/printk.c:2504)
[   46.435571][   T12]  ? snapshot_read.cold (user.c:?)
[   46.435575][   T12]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   46.435579][   T12]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   46.435583][   T12]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   46.435586][   T12]  ? netdev_notice (net/core/dev.c:13194)
[   46.435590][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   46.435592][   T12]  ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1))
[   46.435595][   T12]  ? down_write_nested (kernel/locking/rwsem.c:1759)
[   46.435597][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   46.435599][   T12]  netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3))
[   46.435603][   T12]  dev_set_allmulti (net/core/dev_api.c:315)
[   46.435606][   T12]  del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341)
[   46.435612][   T12]  br_dev_delete (net/bridge/br_if.c:387)
[   46.435616][   T12]  br_net_exit_rtnl (net/bridge/br.c:414)
[   46.435619][   T12]  ops_undo_list (net/core/net_namespace.c:181 net/core/net_namespace.c:249)
[   46.435623][   T12]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   46.435627][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   46.435628][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   46.435631][   T12]  ? idr_destroy (lib/radix-tree.c:310 lib/radix-tree.c:674 lib/radix-tree.c:1563)
[   46.435636][   T12]  cleanup_net (net/core/net_namespace.c:706)
[   46.435639][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   46.435643][   T12]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   46.435645][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   46.435648][   T12]  process_one_work (kernel/workqueue.c:3387)
[   46.435655][   T12]  ? __queue_delayed_work (kernel/workqueue.c:2622)
[   46.435658][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   46.435665][   T12]  worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   46.435672][   T12]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   46.435674][   T12]  kthread (kernel/kthread.c:436)
[   46.435676][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   46.435680][   T12]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   46.435682][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   46.435685][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1))
[   46.435688][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   46.435692][   T12]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   46.435695][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   47.790959][ T1622] softirqs last disabled at (12918): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   47.790962][ T1622] Preemption disabled at:
| [   47.790962][ T1622] vprintk_emit (kernel/printk/printk.c:2471)
| [   47.790973][ T1622] Tainted: [W]=WARN
[   47.790974][ T1622] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   47.790975][ T1622] Call Trace:
[   47.790977][ T1622]  <TASK>
[   47.790978][ T1622]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   47.790984][ T1622]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   47.790985][ T1622]  __might_resched.cold (kernel/sched/core.c:9234)
[   47.790990][ T1622]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   47.790994][ T1622]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   47.790999][ T1622]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   47.791001][ T1622]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   47.791007][ T1622]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   47.791010][ T1622]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   47.791014][ T1622]  put_chars (drivers/char/virtio_console.c:1176)
[   47.791016][ T1622]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   47.791022][ T1622]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   47.791030][ T1622]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   47.791033][ T1622]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   47.791038][ T1622]  console_emit_next_record (kernel/printk/printk.c:3183)
[   47.791042][ T1622]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   47.791043][ T1622]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   47.791047][ T1622]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   47.791049][ T1622]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   47.791053][ T1622]  console_flush_one_record (kernel/printk/printk.c:3268)
[   47.791058][ T1622]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   47.791059][ T1622]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   47.791065][ T1622]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   47.791067][ T1622]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   47.791069][ T1622]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   47.791071][ T1622]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   47.791074][ T1622]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   47.791076][ T1622]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   47.791079][ T1622]  vprintk_emit (kernel/printk/printk.c:2479)
[   47.791082][ T1622]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   47.791084][ T1622]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   47.791086][ T1622]  ? lock_pin_lock (kernel/locking/lockdep.c:5640 (discriminator 2) kernel/locking/lockdep.c:6003 (discriminator 2) kernel/locking/lockdep.c:5991 (discriminator 2))
[   47.791088][ T1622]  ? __print_lock_name (kernel/locking/lockdep.c:718)
[   47.791091][ T1622]  _printk (kernel/printk/printk.c:2504)
[   47.791095][ T1622]  ? snapshot_read.cold (user.c:?)
[   47.791097][ T1622]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   47.791100][ T1622]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   47.791102][ T1622]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   47.791104][ T1622]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   47.791108][ T1622]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   47.791111][ T1622]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   47.791113][ T1622]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   47.791116][ T1622]  ? netdev_notice (net/core/dev.c:13194)
[   47.791119][ T1622]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   47.791121][ T1622]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   47.791124][ T1622]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   47.791127][ T1622]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   47.791129][ T1622]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   47.791132][ T1622]  ? is_bpf_text_address (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) kernel/bpf/core.c:751 (discriminator 2))
[   47.791137][ T1622]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   47.791140][ T1622]  ? __kernel_text_address (kernel/extable.c:79)
[   47.791142][ T1622]  ? write_profile (profile.c:?)
[   47.791146][ T1622]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   47.791152][ T1622]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   47.791155][ T1622]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   47.791157][ T1622]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   47.791158][ T1622]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   47.791160][ T1622]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   47.791163][ T1622]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   47.791165][ T1622]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   47.791167][ T1622]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   47.791170][ T1622]  ? kasan_save_stack (mm/kasan/common.c:58)
[   47.791171][ T1622]  ? kasan_save_stack (mm/kasan/common.c:57)
[   47.791173][ T1622]  ? kasan_save_track (mm/kasan/common.c:78)
[   47.791174][ T1622]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   47.791176][ T1622]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   47.791178][ T1622]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   47.791181][ T1622]  ? ___sys_sendmsg (net/socket.c:2758)
[   47.791185][ T1622]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   47.791187][ T1622]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   47.791189][ T1622]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   47.791191][ T1622]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   47.791193][ T1622]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   47.791194][ T1622]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   47.791195][ T1622]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   47.791198][ T1622]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   47.791200][ T1622]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   47.791202][ T1622]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   47.791205][ T1622]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   47.791207][ T1622]  ? nla_get_range_signed (lib/nlattr.c:270)
[   47.791211][ T1622]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   47.791214][ T1622]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   47.791219][ T1622]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   47.791224][ T1622]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   47.791226][ T1622]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   47.791230][ T1622]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   47.791232][ T1622]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   47.791234][ T1622]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   47.791236][ T1622]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   47.791239][ T1622]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   47.791241][ T1622]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   47.791245][ T1622]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   47.791246][ T1622]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   47.791250][ T1622]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   47.791252][ T1622]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   47.791255][ T1622]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   47.791259][ T1622]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   47.791261][ T1622]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   47.791268][ T1622]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   47.791270][ T1622]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   47.791274][ T1622]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   47.791278][ T1622]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   47.791280][ T1622]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   47.791286][ T1622]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   47.791290][ T1622]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   47.791293][ T1622]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   47.791295][ T1622]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   47.791300][ T1622]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   47.791303][ T1622]  ____sys_sendmsg (net/socket.c:2713)
[   47.791305][ T1622]  ? copy_msghdr_from_user (net/socket.c:2650)
[   47.791307][ T1622]  ? sock_write_iter (net/socket.c:1269)
[   47.791309][ T1622]  ? move_addr_to_kernel (net/socket.c:258)
[   47.791316][ T1622]  ___sys_sendmsg (net/socket.c:2767)
[   47.791319][ T1622]  ? copy_msghdr_from_user (net/socket.c:2619)
[   47.791334][ T1622]  __sys_sendmsg (net/socket.c:2799)
[   47.791337][ T1622]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   47.791343][ T1622]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   47.791346][ T1622]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   47.791349][ T1622]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   47.791352][ T1622]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   47.791354][ T1622] RIP: 0033:0x7f78e3afe54e
[   47.791357][ T1622] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   47.791359][ T1622] RSP: 002b:00007ffc427db080 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   47.791362][ T1622] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f78e3afe54e
[   47.791363][ T1622] RDX: 0000000000000000 RSI: 00007ffc427db130 RDI: 0000000000000005
[   47.791364][ T1622] RBP: 00007ffc427db090 R08: 0000000000000000 R09: 0000000000000000
[   47.791365][ T1622] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a9117d7
[   47.791365][ T1622] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffc427db800
| [   59.695438][ T1931] softirqs last disabled at (24162): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   59.695441][ T1931] Preemption disabled at:
| [   59.695441][ T1931] vprintk_emit (kernel/printk/printk.c:2471)
| [   59.695450][ T1931] Tainted: [W]=WARN
[   59.695450][ T1931] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   59.695452][ T1931] Call Trace:
[   59.695453][ T1931]  <TASK>
[   59.695455][ T1931]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   59.695465][ T1931]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   59.695467][ T1931]  __might_resched.cold (kernel/sched/core.c:9234)
[   59.695471][ T1931]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   59.695476][ T1931]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   59.695480][ T1931]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   59.695481][ T1931]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   59.695488][ T1931]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   59.695491][ T1931]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   59.695494][ T1931]  put_chars (drivers/char/virtio_console.c:1176)
[   59.695497][ T1931]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   59.695498][ T1931]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   59.695501][ T1931]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   59.695507][ T1931]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   59.695515][ T1931]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   59.695517][ T1931]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   59.695519][ T1931]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   59.695523][ T1931]  console_emit_next_record (kernel/printk/printk.c:3183)
[   59.695527][ T1931]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   59.695529][ T1931]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   59.695532][ T1931]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   59.695534][ T1931]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   59.695537][ T1931]  console_flush_one_record (kernel/printk/printk.c:3268)
[   59.695542][ T1931]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   59.695543][ T1931]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   59.695549][ T1931]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   59.695551][ T1931]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   59.695553][ T1931]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   59.695555][ T1931]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   59.695558][ T1931]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   59.695560][ T1931]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   59.695563][ T1931]  vprintk_emit (kernel/printk/printk.c:2479)
[   59.695566][ T1931]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   59.695568][ T1931]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   59.695570][ T1931]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   59.695574][ T1931]  _printk (kernel/printk/printk.c:2504)
[   59.695578][ T1931]  ? snapshot_read.cold (user.c:?)
[   59.695581][ T1931]  ? br_multicast_flood (??:?)
[   59.695584][ T1931]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   59.695586][ T1931]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   59.695587][ T1931]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   59.695591][ T1931]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   59.695595][ T1931]  br_init_port (net/bridge/br_stp_if.c:39)
[   59.695598][ T1931]  new_nbp (net/bridge/br_if.c:449)
[   59.695602][ T1931]  br_add_if (net/bridge/br_if.c:592)
[   59.695604][ T1931]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   59.695607][ T1931]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   59.695613][ T1931]  do_set_master (net/core/rtnetlink.c:3071)
[   59.695616][ T1931]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   59.695620][ T1931]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   59.695623][ T1931]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   59.695625][ T1931]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   59.695628][ T1931]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   59.695631][ T1931]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   59.695633][ T1931]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   59.695635][ T1931]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   59.695637][ T1931]  ? kasan_save_stack (mm/kasan/common.c:58)
[   59.695640][ T1931]  ? kasan_save_stack (mm/kasan/common.c:57)
[   59.695641][ T1931]  ? kasan_save_track (mm/kasan/common.c:78)
[   59.695642][ T1931]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   59.695644][ T1931]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   59.695646][ T1931]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   59.695649][ T1931]  ? ___sys_sendmsg (net/socket.c:2758)
[   59.695653][ T1931]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   59.695655][ T1931]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   59.695657][ T1931]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   59.695659][ T1931]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   59.695660][ T1931]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   59.695661][ T1931]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   59.695663][ T1931]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   59.695665][ T1931]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   59.695668][ T1931]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   59.695670][ T1931]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   59.695673][ T1931]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   59.695674][ T1931]  ? nla_get_range_signed (lib/nlattr.c:270)
[   59.695679][ T1931]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   59.695681][ T1931]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   59.695686][ T1931]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   59.695692][ T1931]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   59.695693][ T1931]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   59.695698][ T1931]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   59.695700][ T1931]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   59.695702][ T1931]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   59.695704][ T1931]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   59.695707][ T1931]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   59.695709][ T1931]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   59.695712][ T1931]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   59.695713][ T1931]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   59.695718][ T1931]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   59.695720][ T1931]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   59.695723][ T1931]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   59.695726][ T1931]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   59.695729][ T1931]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   59.695735][ T1931]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   59.695737][ T1931]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   59.695742][ T1931]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   59.695745][ T1931]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   59.695748][ T1931]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   59.695752][ T1931]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   59.695756][ T1931]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   59.695760][ T1931]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   59.695761][ T1931]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   59.695766][ T1931]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   59.695769][ T1931]  ____sys_sendmsg (net/socket.c:2713)
[   59.695771][ T1931]  ? copy_msghdr_from_user (net/socket.c:2650)
[   59.695774][ T1931]  ? sock_write_iter (net/socket.c:1269)
[   59.695775][ T1931]  ? move_addr_to_kernel (net/socket.c:258)
[   59.695782][ T1931]  ___sys_sendmsg (net/socket.c:2767)
[   59.695785][ T1931]  ? copy_msghdr_from_user (net/socket.c:2619)
[   59.695801][ T1931]  __sys_sendmsg (net/socket.c:2799)
[   59.695803][ T1931]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   59.695809][ T1931]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   59.695812][ T1931]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   59.695815][ T1931]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   59.695818][ T1931]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   59.695820][ T1931] RIP: 0033:0x7fabf0c6f54e
[   59.695824][ T1931] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   59.695826][ T1931] RSP: 002b:00007ffdce7aa880 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   59.695828][ T1931] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fabf0c6f54e
[   59.695830][ T1931] RDX: 0000000000000000 RSI: 00007ffdce7aa930 RDI: 0000000000000005
[   59.695831][ T1931] RBP: 00007ffdce7aa890 R08: 0000000000000000 R09: 0000000000000000
[   59.695832][ T1931] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a9117e3
[   59.695833][ T1931] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffdce7ab000
| [   61.003587][ T2012] softirqs last disabled at (23898): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   61.003589][ T2012] Preemption disabled at:
| [   61.003590][ T2012] vprintk_emit (kernel/printk/printk.c:2471)
| [   61.003598][ T2012] Tainted: [W]=WARN
[   61.003599][ T2012] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   61.003600][ T2012] Call Trace:
[   61.003602][ T2012]  <TASK>
[   61.003603][ T2012]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   61.003609][ T2012]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   61.003610][ T2012]  __might_resched.cold (kernel/sched/core.c:9234)
[   61.003615][ T2012]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   61.003619][ T2012]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   61.003623][ T2012]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   61.003625][ T2012]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   61.003632][ T2012]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   61.003634][ T2012]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   61.003638][ T2012]  put_chars (drivers/char/virtio_console.c:1176)
[   61.003640][ T2012]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   61.003642][ T2012]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   61.003645][ T2012]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   61.003651][ T2012]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   61.003658][ T2012]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   61.003661][ T2012]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   61.003663][ T2012]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   61.003667][ T2012]  console_emit_next_record (kernel/printk/printk.c:3183)
[   61.003671][ T2012]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   61.003672][ T2012]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   61.003676][ T2012]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   61.003677][ T2012]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   61.003681][ T2012]  console_flush_one_record (kernel/printk/printk.c:3268)
[   61.003686][ T2012]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   61.003687][ T2012]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   61.003693][ T2012]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   61.003695][ T2012]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   61.003697][ T2012]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   61.003699][ T2012]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   61.003702][ T2012]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   61.003704][ T2012]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   61.003707][ T2012]  vprintk_emit (kernel/printk/printk.c:2479)
[   61.003710][ T2012]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   61.003712][ T2012]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   61.003715][ T2012]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   61.003718][ T2012]  _printk (kernel/printk/printk.c:2504)
[   61.003722][ T2012]  ? snapshot_read.cold (user.c:?)
[   61.003725][ T2012]  ? br_multicast_flood (??:?)
[   61.003728][ T2012]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   61.003730][ T2012]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   61.003731][ T2012]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   61.003735][ T2012]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   61.003739][ T2012]  br_init_port (net/bridge/br_stp_if.c:39)
[   61.003742][ T2012]  new_nbp (net/bridge/br_if.c:449)
[   61.003745][ T2012]  br_add_if (net/bridge/br_if.c:592)
[   61.003748][ T2012]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   61.003751][ T2012]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   61.003757][ T2012]  do_set_master (net/core/rtnetlink.c:3071)
[   61.003760][ T2012]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   61.003763][ T2012]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   61.003766][ T2012]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   61.003768][ T2012]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   61.003770][ T2012]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   61.003774][ T2012]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   61.003776][ T2012]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   61.003778][ T2012]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   61.003780][ T2012]  ? kasan_save_stack (mm/kasan/common.c:58)
[   61.003782][ T2012]  ? kasan_save_stack (mm/kasan/common.c:57)
[   61.003783][ T2012]  ? kasan_save_track (mm/kasan/common.c:78)
[   61.003785][ T2012]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   61.003787][ T2012]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   61.003789][ T2012]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   61.003792][ T2012]  ? ___sys_sendmsg (net/socket.c:2758)
[   61.003795][ T2012]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   61.003797][ T2012]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   61.003800][ T2012]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   61.003801][ T2012]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   61.003803][ T2012]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   61.003804][ T2012]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   61.003806][ T2012]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   61.003808][ T2012]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   61.003811][ T2012]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   61.003812][ T2012]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   61.003816][ T2012]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   61.003817][ T2012]  ? nla_get_range_signed (lib/nlattr.c:270)
[   61.003822][ T2012]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   61.003824][ T2012]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   61.003829][ T2012]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   61.003835][ T2012]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   61.003837][ T2012]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   61.003841][ T2012]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   61.003843][ T2012]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   61.003845][ T2012]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   61.003847][ T2012]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   61.003851][ T2012]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   61.003853][ T2012]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   61.003856][ T2012]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   61.003857][ T2012]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   61.003861][ T2012]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   61.003863][ T2012]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   61.003867][ T2012]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   61.003870][ T2012]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   61.003873][ T2012]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   61.003879][ T2012]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   61.003881][ T2012]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   61.003886][ T2012]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   61.003890][ T2012]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   61.003892][ T2012]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   61.003896][ T2012]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   61.003900][ T2012]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   61.003904][ T2012]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   61.003906][ T2012]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   61.003911][ T2012]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   61.003914][ T2012]  ____sys_sendmsg (net/socket.c:2713)
[   61.003916][ T2012]  ? copy_msghdr_from_user (net/socket.c:2650)
[   61.003918][ T2012]  ? sock_write_iter (net/socket.c:1269)
[   61.003920][ T2012]  ? move_addr_to_kernel (net/socket.c:258)
[   61.003927][ T2012]  ___sys_sendmsg (net/socket.c:2767)
[   61.003930][ T2012]  ? copy_msghdr_from_user (net/socket.c:2619)
[   61.003946][ T2012]  __sys_sendmsg (net/socket.c:2799)
[   61.003949][ T2012]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   61.003955][ T2012]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   61.003958][ T2012]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   61.003961][ T2012]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   61.003964][ T2012]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   61.003966][ T2012] RIP: 0033:0x7f292166c54e
[   61.003971][ T2012] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   61.003973][ T2012] RSP: 002b:00007fff38f5d2e0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   61.003975][ T2012] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f292166c54e
[   61.003977][ T2012] RDX: 0000000000000000 RSI: 00007fff38f5d390 RDI: 0000000000000005
[   61.003977][ T2012] RBP: 00007fff38f5d2f0 R08: 0000000000000000 R09: 0000000000000000
[   61.003978][ T2012] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a9117e4
[   61.003979][ T2012] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fff38f5da60
| [   62.282291][ T2085] softirqs last disabled at (19327): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   62.282294][ T2085] Preemption disabled at:
| [   62.282294][ T2085] vprintk_emit (kernel/printk/printk.c:2471)
| [   62.282302][ T2085] Tainted: [W]=WARN
[   62.282303][ T2085] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   62.282305][ T2085] Call Trace:
[   62.282306][ T2085]  <TASK>
[   62.282308][ T2085]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   62.282313][ T2085]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   62.282315][ T2085]  __might_resched.cold (kernel/sched/core.c:9234)
[   62.282320][ T2085]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   62.282324][ T2085]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   62.282328][ T2085]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   62.282330][ T2085]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   62.282336][ T2085]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   62.282339][ T2085]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   62.282343][ T2085]  put_chars (drivers/char/virtio_console.c:1176)
[   62.282345][ T2085]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   62.282347][ T2085]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   62.282350][ T2085]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   62.282356][ T2085]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   62.282363][ T2085]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   62.282366][ T2085]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   62.282368][ T2085]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   62.282372][ T2085]  console_emit_next_record (kernel/printk/printk.c:3183)
[   62.282376][ T2085]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   62.282377][ T2085]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   62.282381][ T2085]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   62.282382][ T2085]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   62.282386][ T2085]  console_flush_one_record (kernel/printk/printk.c:3268)
[   62.282390][ T2085]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   62.282392][ T2085]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   62.282398][ T2085]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   62.282400][ T2085]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   62.282402][ T2085]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   62.282404][ T2085]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   62.282408][ T2085]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   62.282409][ T2085]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   62.282412][ T2085]  vprintk_emit (kernel/printk/printk.c:2479)
[   62.282415][ T2085]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   62.282417][ T2085]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   62.282420][ T2085]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   62.282423][ T2085]  _printk (kernel/printk/printk.c:2504)
[   62.282427][ T2085]  ? snapshot_read.cold (user.c:?)
[   62.282431][ T2085]  ? br_multicast_flood (??:?)
[   62.282434][ T2085]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   62.282435][ T2085]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   62.282436][ T2085]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   62.282441][ T2085]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   62.282445][ T2085]  br_init_port (net/bridge/br_stp_if.c:39)
[   62.282447][ T2085]  new_nbp (net/bridge/br_if.c:449)
[   62.282451][ T2085]  br_add_if (net/bridge/br_if.c:592)
[   62.282453][ T2085]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   62.282457][ T2085]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   62.282462][ T2085]  do_set_master (net/core/rtnetlink.c:3071)
[   62.282465][ T2085]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   62.282472][ T2085]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   62.282475][ T2085]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   62.282477][ T2085]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   62.282479][ T2085]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   62.282483][ T2085]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   62.282485][ T2085]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   62.282486][ T2085]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   62.282489][ T2085]  ? kasan_save_stack (mm/kasan/common.c:58)
[   62.282491][ T2085]  ? kasan_save_stack (mm/kasan/common.c:57)
[   62.282492][ T2085]  ? kasan_save_track (mm/kasan/common.c:78)
[   62.282494][ T2085]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   62.282496][ T2085]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   62.282498][ T2085]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   62.282501][ T2085]  ? ___sys_sendmsg (net/socket.c:2758)
[   62.282505][ T2085]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   62.282507][ T2085]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   62.282510][ T2085]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   62.282511][ T2085]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   62.282513][ T2085]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   62.282514][ T2085]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   62.282516][ T2085]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   62.282518][ T2085]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   62.282520][ T2085]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   62.282522][ T2085]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   62.282525][ T2085]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   62.282527][ T2085]  ? nla_get_range_signed (lib/nlattr.c:270)
[   62.282531][ T2085]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   62.282534][ T2085]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   62.282539][ T2085]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   62.282544][ T2085]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   62.282546][ T2085]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   62.282550][ T2085]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   62.282552][ T2085]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   62.282554][ T2085]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   62.282556][ T2085]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   62.282560][ T2085]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   62.282562][ T2085]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   62.282565][ T2085]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   62.282566][ T2085]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   62.282570][ T2085]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   62.282572][ T2085]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   62.282576][ T2085]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   62.282579][ T2085]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   62.282582][ T2085]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   62.282588][ T2085]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   62.282590][ T2085]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   62.282594][ T2085]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   62.282598][ T2085]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   62.282601][ T2085]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   62.282605][ T2085]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   62.282609][ T2085]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   62.282613][ T2085]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   62.282614][ T2085]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   62.282619][ T2085]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   62.282622][ T2085]  ____sys_sendmsg (net/socket.c:2713)
[   62.282624][ T2085]  ? copy_msghdr_from_user (net/socket.c:2650)
[   62.282627][ T2085]  ? sock_write_iter (net/socket.c:1269)
[   62.282628][ T2085]  ? move_addr_to_kernel (net/socket.c:258)
[   62.282635][ T2085]  ___sys_sendmsg (net/socket.c:2767)
[   62.282638][ T2085]  ? copy_msghdr_from_user (net/socket.c:2619)
[   62.282654][ T2085]  __sys_sendmsg (net/socket.c:2799)
[   62.282657][ T2085]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   62.282663][ T2085]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   62.282666][ T2085]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   62.282669][ T2085]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   62.282672][ T2085]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   62.282674][ T2085] RIP: 0033:0x7f0e0319654e
[   62.282678][ T2085] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   62.282680][ T2085] RSP: 002b:00007ffdcd35fce0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   62.282682][ T2085] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f0e0319654e
[   62.282684][ T2085] RDX: 0000000000000000 RSI: 00007ffdcd35fd90 RDI: 0000000000000005
[   62.282685][ T2085] RBP: 00007ffdcd35fcf0 R08: 0000000000000000 R09: 0000000000000000
[   62.282686][ T2085] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a9117e5
[   62.282686][ T2085] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffdcd360460
| [   63.601417][ T2157] softirqs last disabled at (20102): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   63.601420][ T2157] Preemption disabled at:
| [   63.601420][ T2157] vprintk_emit (kernel/printk/printk.c:2471)
| [   63.601428][ T2157] Tainted: [W]=WARN
[   63.601429][ T2157] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   63.601431][ T2157] Call Trace:
[   63.601433][ T2157]  <TASK>
[   63.601434][ T2157]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   63.601440][ T2157]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   63.601441][ T2157]  __might_resched.cold (kernel/sched/core.c:9234)
[   63.601446][ T2157]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   63.601450][ T2157]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   63.601455][ T2157]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   63.601457][ T2157]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   63.601463][ T2157]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   63.601466][ T2157]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   63.601470][ T2157]  put_chars (drivers/char/virtio_console.c:1176)
[   63.601472][ T2157]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   63.601473][ T2157]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   63.601483][ T2157]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   63.601489][ T2157]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   63.601496][ T2157]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   63.601499][ T2157]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   63.601501][ T2157]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   63.601505][ T2157]  console_emit_next_record (kernel/printk/printk.c:3183)
[   63.601509][ T2157]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   63.601511][ T2157]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   63.601514][ T2157]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   63.601516][ T2157]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   63.601520][ T2157]  console_flush_one_record (kernel/printk/printk.c:3268)
[   63.601524][ T2157]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   63.601526][ T2157]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   63.601531][ T2157]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   63.601534][ T2157]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   63.601536][ T2157]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   63.601537][ T2157]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   63.601541][ T2157]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   63.601543][ T2157]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   63.601545][ T2157]  vprintk_emit (kernel/printk/printk.c:2479)
[   63.601548][ T2157]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   63.601550][ T2157]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   63.601553][ T2157]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   63.601556][ T2157]  _printk (kernel/printk/printk.c:2504)
[   63.601560][ T2157]  ? snapshot_read.cold (user.c:?)
[   63.601564][ T2157]  ? br_multicast_flood (??:?)
[   63.601567][ T2157]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   63.601568][ T2157]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   63.601570][ T2157]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   63.601574][ T2157]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   63.601578][ T2157]  br_init_port (net/bridge/br_stp_if.c:39)
[   63.601580][ T2157]  new_nbp (net/bridge/br_if.c:449)
[   63.601584][ T2157]  br_add_if (net/bridge/br_if.c:592)
[   63.601587][ T2157]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   63.601590][ T2157]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   63.601595][ T2157]  do_set_master (net/core/rtnetlink.c:3071)
[   63.601599][ T2157]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   63.601602][ T2157]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   63.601605][ T2157]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   63.601607][ T2157]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   63.601609][ T2157]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   63.601613][ T2157]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   63.601615][ T2157]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   63.601616][ T2157]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   63.601619][ T2157]  ? kasan_save_stack (mm/kasan/common.c:58)
[   63.601621][ T2157]  ? kasan_save_stack (mm/kasan/common.c:57)
[   63.601622][ T2157]  ? kasan_save_track (mm/kasan/common.c:78)
[   63.601623][ T2157]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   63.601626][ T2157]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   63.601628][ T2157]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   63.601630][ T2157]  ? ___sys_sendmsg (net/socket.c:2758)
[   63.601634][ T2157]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   63.601636][ T2157]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   63.601639][ T2157]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   63.601641][ T2157]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   63.601642][ T2157]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   63.601643][ T2157]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   63.601645][ T2157]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   63.601647][ T2157]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   63.601649][ T2157]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   63.601651][ T2157]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   63.601655][ T2157]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   63.601656][ T2157]  ? nla_get_range_signed (lib/nlattr.c:270)
[   63.601661][ T2157]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   63.601663][ T2157]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   63.601668][ T2157]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   63.601673][ T2157]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   63.601675][ T2157]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   63.601680][ T2157]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   63.601681][ T2157]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   63.601684][ T2157]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   63.601685][ T2157]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   63.601689][ T2157]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   63.601691][ T2157]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   63.601694][ T2157]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   63.601695][ T2157]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   63.601700][ T2157]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   63.601702][ T2157]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   63.601705][ T2157]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   63.601708][ T2157]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   63.601711][ T2157]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   63.601717][ T2157]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   63.601720][ T2157]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   63.601724][ T2157]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   63.601728][ T2157]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   63.601730][ T2157]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   63.601735][ T2157]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   63.601739][ T2157]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   63.601742][ T2157]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   63.601744][ T2157]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   63.601749][ T2157]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   63.601752][ T2157]  ____sys_sendmsg (net/socket.c:2713)
[   63.601754][ T2157]  ? copy_msghdr_from_user (net/socket.c:2650)
[   63.601757][ T2157]  ? sock_write_iter (net/socket.c:1269)
[   63.601758][ T2157]  ? move_addr_to_kernel (net/socket.c:258)
[   63.601766][ T2157]  ___sys_sendmsg (net/socket.c:2767)
[   63.601768][ T2157]  ? copy_msghdr_from_user (net/socket.c:2619)
[   63.601784][ T2157]  __sys_sendmsg (net/socket.c:2799)
[   63.601787][ T2157]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   63.601793][ T2157]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   63.601796][ T2157]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   63.601799][ T2157]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   63.601802][ T2157]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   63.601804][ T2157] RIP: 0033:0x7f1cbbeee54e
[   63.601808][ T2157] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   63.601810][ T2157] RSP: 002b:00007ffedde81d00 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   63.601812][ T2157] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f1cbbeee54e
[   63.601814][ T2157] RDX: 0000000000000000 RSI: 00007ffedde81db0 RDI: 0000000000000005
[   63.601815][ T2157] RBP: 00007ffedde81d10 R08: 0000000000000000 R09: 0000000000000000
[   63.601815][ T2157] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a9117e6
[   63.601816][ T2157] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffedde82480
| [   64.921530][   T12] softirqs last disabled at (749302): inet6_fill_ifla6_attrs (net/ipv6/addrconf.c:5883)
| [   64.921532][   T12] Preemption disabled at:
| [   64.921533][   T12] vprintk_emit (kernel/printk/printk.c:2471)
| [   64.921541][   T12] Tainted: [W]=WARN
[   64.921542][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   64.921544][   T12] Workqueue: netns cleanup_net
[   64.921547][   T12] Call Trace:
[   64.921549][   T12]  <TASK>
[   64.921550][   T12]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   64.921556][   T12]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   64.921558][   T12]  __might_resched.cold (kernel/sched/core.c:9234)
[   64.921562][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   64.921567][   T12]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   64.921571][   T12]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   64.921573][   T12]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   64.921579][   T12]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   64.921582][   T12]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   64.921586][   T12]  put_chars (drivers/char/virtio_console.c:1176)
[   64.921588][   T12]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   64.921590][   T12]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   64.921593][   T12]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   64.921596][   T12]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   64.921601][   T12]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   64.921605][   T12]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   64.921611][   T12]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   64.921614][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   64.921619][   T12]  console_emit_next_record (kernel/printk/printk.c:3183)
[   64.921623][   T12]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   64.921625][   T12]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   64.921628][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   64.921630][   T12]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   64.921634][   T12]  console_flush_one_record (kernel/printk/printk.c:3268)
[   64.921639][   T12]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   64.921641][   T12]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   64.921646][   T12]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   64.921649][   T12]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   64.921651][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   64.921653][   T12]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   64.921657][   T12]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   64.921659][   T12]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   64.921662][   T12]  vprintk_emit (kernel/printk/printk.c:2479)
[   64.921665][   T12]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   64.921666][   T12]  ? cleanup_net (net/core/net_namespace.c:706)
[   64.921668][   T12]  ? worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   64.921670][   T12]  ? kthread (kernel/kthread.c:436)
[   64.921672][   T12]  ? ret_from_fork (arch/x86/kernel/process.c:158)
[   64.921675][   T12]  ? ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
[   64.921680][   T12]  _printk (kernel/printk/printk.c:2504)
[   64.921684][   T12]  ? snapshot_read.cold (user.c:?)
[   64.921688][   T12]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   64.921692][   T12]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   64.921696][   T12]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   64.921699][   T12]  ? netdev_notice (net/core/dev.c:13194)
[   64.921704][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   64.921705][   T12]  ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1))
[   64.921708][   T12]  ? down_write_nested (kernel/locking/rwsem.c:1759)
[   64.921710][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   64.921713][   T12]  netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3))
[   64.921717][   T12]  dev_set_allmulti (net/core/dev_api.c:315)
[   64.921720][   T12]  del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341)
[   64.921727][   T12]  br_dev_delete (net/bridge/br_if.c:387)
[   64.921730][   T12]  br_net_exit_rtnl (net/bridge/br.c:414)
[   64.921734][   T12]  ops_undo_list (net/core/net_namespace.c:181 net/core/net_namespace.c:249)
[   64.921738][   T12]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   64.921742][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   64.921743][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   64.921746][   T12]  ? idr_destroy (lib/radix-tree.c:310 lib/radix-tree.c:674 lib/radix-tree.c:1563)
[   64.921751][   T12]  cleanup_net (net/core/net_namespace.c:706)
[   64.921755][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   64.921759][   T12]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   64.921761][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   64.921764][   T12]  process_one_work (kernel/workqueue.c:3387)
[   64.921771][   T12]  ? __queue_delayed_work (kernel/workqueue.c:2622)
[   64.921774][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   64.921782][   T12]  worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   64.921789][   T12]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   64.921792][   T12]  kthread (kernel/kthread.c:436)
[   64.921794][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   64.921797][   T12]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   64.921800][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   64.921803][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1))
[   64.921806][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   64.921810][   T12]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   64.921813][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   66.327673][ T2302] softirqs last disabled at (14648): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   66.327676][ T2302] Preemption disabled at:
| [   66.327677][ T2302] vprintk_emit (kernel/printk/printk.c:2471)
| [   66.327685][ T2302] Tainted: [W]=WARN
[   66.327686][ T2302] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   66.327688][ T2302] Call Trace:
[   66.327689][ T2302]  <TASK>
[   66.327691][ T2302]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   66.327697][ T2302]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   66.327698][ T2302]  __might_resched.cold (kernel/sched/core.c:9234)
[   66.327703][ T2302]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   66.327707][ T2302]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   66.327711][ T2302]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   66.327713][ T2302]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   66.327720][ T2302]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   66.327723][ T2302]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   66.327727][ T2302]  put_chars (drivers/char/virtio_console.c:1176)
[   66.327729][ T2302]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   66.327736][ T2302]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   66.327744][ T2302]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   66.327747][ T2302]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   66.327752][ T2302]  console_emit_next_record (kernel/printk/printk.c:3183)
[   66.327756][ T2302]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   66.327758][ T2302]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   66.327761][ T2302]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   66.327764][ T2302]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   66.327768][ T2302]  console_flush_one_record (kernel/printk/printk.c:3268)
[   66.327772][ T2302]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   66.327774][ T2302]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   66.327780][ T2302]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   66.327783][ T2302]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   66.327784][ T2302]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   66.327786][ T2302]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   66.327790][ T2302]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   66.327792][ T2302]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   66.327795][ T2302]  vprintk_emit (kernel/printk/printk.c:2479)
[   66.327798][ T2302]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   66.327800][ T2302]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   66.327802][ T2302]  ? lock_pin_lock (kernel/locking/lockdep.c:5640 (discriminator 2) kernel/locking/lockdep.c:6003 (discriminator 2) kernel/locking/lockdep.c:5991 (discriminator 2))
[   66.327804][ T2302]  ? __print_lock_name (kernel/locking/lockdep.c:718)
[   66.327808][ T2302]  _printk (kernel/printk/printk.c:2504)
[   66.327811][ T2302]  ? snapshot_read.cold (user.c:?)
[   66.327813][ T2302]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   66.327816][ T2302]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   66.327819][ T2302]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   66.327821][ T2302]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   66.327825][ T2302]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   66.327828][ T2302]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   66.327830][ T2302]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   66.327833][ T2302]  ? netdev_notice (net/core/dev.c:13194)
[   66.327835][ T2302]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   66.327838][ T2302]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   66.327841][ T2302]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   66.327845][ T2302]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   66.327847][ T2302]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   66.327849][ T2302]  ? is_bpf_text_address (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) kernel/bpf/core.c:751 (discriminator 2))
[   66.327855][ T2302]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   66.327857][ T2302]  ? __kernel_text_address (kernel/extable.c:79)
[   66.327860][ T2302]  ? write_profile (profile.c:?)
[   66.327864][ T2302]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   66.327870][ T2302]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   66.327873][ T2302]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   66.327875][ T2302]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   66.327876][ T2302]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   66.327878][ T2302]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   66.327882][ T2302]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   66.327884][ T2302]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   66.327886][ T2302]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   66.327888][ T2302]  ? kasan_save_stack (mm/kasan/common.c:58)
[   66.327890][ T2302]  ? kasan_save_stack (mm/kasan/common.c:57)
[   66.327891][ T2302]  ? kasan_save_track (mm/kasan/common.c:78)
[   66.327892][ T2302]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   66.327895][ T2302]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   66.327897][ T2302]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   66.327900][ T2302]  ? ___sys_sendmsg (net/socket.c:2758)
[   66.327904][ T2302]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   66.327906][ T2302]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   66.327908][ T2302]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   66.327910][ T2302]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   66.327912][ T2302]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   66.327913][ T2302]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   66.327914][ T2302]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   66.327917][ T2302]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   66.327919][ T2302]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   66.327921][ T2302]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   66.327925][ T2302]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   66.327926][ T2302]  ? nla_get_range_signed (lib/nlattr.c:270)
[   66.327931][ T2302]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   66.327933][ T2302]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   66.327939][ T2302]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   66.327944][ T2302]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   66.327946][ T2302]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   66.327951][ T2302]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   66.327953][ T2302]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   66.327955][ T2302]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   66.327956][ T2302]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   66.327960][ T2302]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   66.327962][ T2302]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   66.327966][ T2302]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   66.327967][ T2302]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   66.327974][ T2302]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   66.327975][ T2302]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   66.327979][ T2302]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   66.327982][ T2302]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   66.327985][ T2302]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   66.327992][ T2302]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   66.327994][ T2302]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   66.327998][ T2302]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   66.328002][ T2302]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   66.328005][ T2302]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   66.328009][ T2302]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   66.328013][ T2302]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   66.328017][ T2302]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   66.328019][ T2302]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   66.328024][ T2302]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   66.328027][ T2302]  ____sys_sendmsg (net/socket.c:2713)
[   66.328029][ T2302]  ? copy_msghdr_from_user (net/socket.c:2650)
[   66.328032][ T2302]  ? sock_write_iter (net/socket.c:1269)
[   66.328033][ T2302]  ? move_addr_to_kernel (net/socket.c:258)
[   66.328041][ T2302]  ___sys_sendmsg (net/socket.c:2767)
[   66.328043][ T2302]  ? copy_msghdr_from_user (net/socket.c:2619)
[   66.328060][ T2302]  __sys_sendmsg (net/socket.c:2799)
[   66.328062][ T2302]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   66.328069][ T2302]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   66.328072][ T2302]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   66.328075][ T2302]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   66.328078][ T2302]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   66.328080][ T2302] RIP: 0033:0x7f4ffc32a54e
[   66.328083][ T2302] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   66.328085][ T2302] RSP: 002b:00007ffde3e503d0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   66.328088][ T2302] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f4ffc32a54e
[   66.328089][ T2302] RDX: 0000000000000000 RSI: 00007ffde3e50480 RDI: 0000000000000005
[   66.328090][ T2302] RBP: 00007ffde3e503e0 R08: 0000000000000000 R09: 0000000000000000
[   66.328091][ T2302] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a9117e9
[   66.328092][ T2302] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffde3e50b50
| [   78.210363][ T2604] softirqs last disabled at (16070): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   78.210365][ T2604] Preemption disabled at:
| [   78.210365][ T2604] vprintk_emit (kernel/printk/printk.c:2471)
| [   78.210374][ T2604] Tainted: [W]=WARN
[   78.210375][ T2604] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   78.210376][ T2604] Call Trace:
[   78.210378][ T2604]  <TASK>
[   78.210379][ T2604]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   78.210385][ T2604]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   78.210387][ T2604]  __might_resched.cold (kernel/sched/core.c:9234)
[   78.210391][ T2604]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   78.210395][ T2604]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   78.210399][ T2604]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   78.210401][ T2604]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   78.210408][ T2604]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   78.210411][ T2604]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   78.210414][ T2604]  put_chars (drivers/char/virtio_console.c:1176)
[   78.210417][ T2604]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   78.210418][ T2604]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   78.210421][ T2604]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   78.210427][ T2604]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   78.210434][ T2604]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   78.210437][ T2604]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   78.210439][ T2604]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   78.210443][ T2604]  console_emit_next_record (kernel/printk/printk.c:3183)
[   78.210447][ T2604]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   78.210449][ T2604]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   78.210452][ T2604]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   78.210454][ T2604]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   78.210458][ T2604]  console_flush_one_record (kernel/printk/printk.c:3268)
[   78.210462][ T2604]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   78.210464][ T2604]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   78.210469][ T2604]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   78.210472][ T2604]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   78.210473][ T2604]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   78.210475][ T2604]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   78.210479][ T2604]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   78.210480][ T2604]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   78.210483][ T2604]  vprintk_emit (kernel/printk/printk.c:2479)
[   78.210486][ T2604]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   78.210488][ T2604]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   78.210491][ T2604]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   78.210494][ T2604]  _printk (kernel/printk/printk.c:2504)
[   78.210498][ T2604]  ? snapshot_read.cold (user.c:?)
[   78.210501][ T2604]  ? br_multicast_flood (??:?)
[   78.210505][ T2604]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   78.210506][ T2604]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   78.210507][ T2604]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   78.210511][ T2604]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   78.210515][ T2604]  br_init_port (net/bridge/br_stp_if.c:39)
[   78.210518][ T2604]  new_nbp (net/bridge/br_if.c:449)
[   78.210521][ T2604]  br_add_if (net/bridge/br_if.c:592)
[   78.210524][ T2604]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   78.210527][ T2604]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   78.210533][ T2604]  do_set_master (net/core/rtnetlink.c:3071)
[   78.210536][ T2604]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   78.210543][ T2604]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   78.210547][ T2604]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   78.210548][ T2604]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   78.210551][ T2604]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   78.210555][ T2604]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   78.210557][ T2604]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   78.210558][ T2604]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   78.210561][ T2604]  ? kasan_save_stack (mm/kasan/common.c:58)
[   78.210563][ T2604]  ? kasan_save_stack (mm/kasan/common.c:57)
[   78.210564][ T2604]  ? kasan_save_track (mm/kasan/common.c:78)
[   78.210565][ T2604]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   78.210568][ T2604]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   78.210569][ T2604]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   78.210572][ T2604]  ? ___sys_sendmsg (net/socket.c:2758)
[   78.210576][ T2604]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   78.210578][ T2604]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   78.210580][ T2604]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   78.210582][ T2604]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   78.210584][ T2604]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   78.210585][ T2604]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   78.210586][ T2604]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   78.210589][ T2604]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   78.210591][ T2604]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   78.210593][ T2604]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   78.210597][ T2604]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   78.210598][ T2604]  ? nla_get_range_signed (lib/nlattr.c:270)
[   78.210602][ T2604]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   78.210605][ T2604]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   78.210610][ T2604]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   78.210615][ T2604]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   78.210617][ T2604]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   78.210621][ T2604]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   78.210623][ T2604]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   78.210625][ T2604]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   78.210627][ T2604]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   78.210630][ T2604]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   78.210632][ T2604]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   78.210635][ T2604]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   78.210637][ T2604]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   78.210641][ T2604]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   78.210643][ T2604]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   78.210646][ T2604]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   78.210649][ T2604]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   78.210652][ T2604]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   78.210659][ T2604]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   78.210661][ T2604]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   78.210665][ T2604]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   78.210669][ T2604]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   78.210671][ T2604]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   78.210676][ T2604]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   78.210679][ T2604]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   78.210683][ T2604]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   78.210685][ T2604]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   78.210690][ T2604]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   78.210693][ T2604]  ____sys_sendmsg (net/socket.c:2713)
[   78.210695][ T2604]  ? copy_msghdr_from_user (net/socket.c:2650)
[   78.210697][ T2604]  ? sock_write_iter (net/socket.c:1269)
[   78.210699][ T2604]  ? move_addr_to_kernel (net/socket.c:258)
[   78.210706][ T2604]  ___sys_sendmsg (net/socket.c:2767)
[   78.210709][ T2604]  ? copy_msghdr_from_user (net/socket.c:2619)
[   78.210724][ T2604]  __sys_sendmsg (net/socket.c:2799)
[   78.210727][ T2604]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   78.210733][ T2604]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   78.210736][ T2604]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   78.210739][ T2604]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   78.210742][ T2604]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   78.210744][ T2604] RIP: 0033:0x7f6c903d954e
[   78.210748][ T2604] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   78.210750][ T2604] RSP: 002b:00007fff9a7df7c0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   78.210753][ T2604] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f6c903d954e
[   78.210754][ T2604] RDX: 0000000000000000 RSI: 00007fff9a7df870 RDI: 0000000000000005
[   78.210755][ T2604] RBP: 00007fff9a7df7d0 R08: 0000000000000000 R09: 0000000000000000
[   78.210756][ T2604] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a9117f5
[   78.210757][ T2604] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fff9a7dff40
| [   79.545332][ T2685] softirqs last disabled at (13472): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   79.545334][ T2685] Preemption disabled at:
| [   79.545335][ T2685] vprintk_emit (kernel/printk/printk.c:2471)
| [   79.545343][ T2685] Tainted: [W]=WARN
[   79.545344][ T2685] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   79.545345][ T2685] Call Trace:
[   79.545347][ T2685]  <TASK>
[   79.545349][ T2685]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   79.545355][ T2685]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   79.545356][ T2685]  __might_resched.cold (kernel/sched/core.c:9234)
[   79.545361][ T2685]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   79.545365][ T2685]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   79.545370][ T2685]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   79.545372][ T2685]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   79.545378][ T2685]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   79.545381][ T2685]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   79.545385][ T2685]  put_chars (drivers/char/virtio_console.c:1176)
[   79.545387][ T2685]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   79.545388][ T2685]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   79.545392][ T2685]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   79.545397][ T2685]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   79.545405][ T2685]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   79.545407][ T2685]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   79.545409][ T2685]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   79.545413][ T2685]  console_emit_next_record (kernel/printk/printk.c:3183)
[   79.545417][ T2685]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   79.545419][ T2685]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   79.545422][ T2685]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   79.545424][ T2685]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   79.545428][ T2685]  console_flush_one_record (kernel/printk/printk.c:3268)
[   79.545432][ T2685]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   79.545434][ T2685]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   79.545439][ T2685]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   79.545442][ T2685]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   79.545444][ T2685]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   79.545445][ T2685]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   79.545449][ T2685]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   79.545451][ T2685]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   79.545453][ T2685]  vprintk_emit (kernel/printk/printk.c:2479)
[   79.545457][ T2685]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   79.545458][ T2685]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   79.545461][ T2685]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   79.545465][ T2685]  _printk (kernel/printk/printk.c:2504)
[   79.545468][ T2685]  ? snapshot_read.cold (user.c:?)
[   79.545472][ T2685]  ? br_multicast_flood (??:?)
[   79.545475][ T2685]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   79.545476][ T2685]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   79.545478][ T2685]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   79.545482][ T2685]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   79.545486][ T2685]  br_init_port (net/bridge/br_stp_if.c:39)
[   79.545489][ T2685]  new_nbp (net/bridge/br_if.c:449)
[   79.545492][ T2685]  br_add_if (net/bridge/br_if.c:592)
[   79.545495][ T2685]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   79.545498][ T2685]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   79.545504][ T2685]  do_set_master (net/core/rtnetlink.c:3071)
[   79.545508][ T2685]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   79.545511][ T2685]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   79.545514][ T2685]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   79.545516][ T2685]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   79.545518][ T2685]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   79.545522][ T2685]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   79.545524][ T2685]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   79.545526][ T2685]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   79.545528][ T2685]  ? kasan_save_stack (mm/kasan/common.c:58)
[   79.545530][ T2685]  ? kasan_save_stack (mm/kasan/common.c:57)
[   79.545532][ T2685]  ? kasan_save_track (mm/kasan/common.c:78)
[   79.545533][ T2685]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   79.545535][ T2685]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   79.545537][ T2685]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   79.545540][ T2685]  ? ___sys_sendmsg (net/socket.c:2758)
[   79.545544][ T2685]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   79.545551][ T2685]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   79.545553][ T2685]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   79.545555][ T2685]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   79.545556][ T2685]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   79.545557][ T2685]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   79.545559][ T2685]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   79.545562][ T2685]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   79.545564][ T2685]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   79.545566][ T2685]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   79.545569][ T2685]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   79.545571][ T2685]  ? nla_get_range_signed (lib/nlattr.c:270)
[   79.545575][ T2685]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   79.545577][ T2685]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   79.545583][ T2685]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   79.545588][ T2685]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   79.545589][ T2685]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   79.545594][ T2685]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   79.545596][ T2685]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   79.545598][ T2685]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   79.545600][ T2685]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   79.545603][ T2685]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   79.545605][ T2685]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   79.545608][ T2685]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   79.545610][ T2685]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   79.545614][ T2685]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   79.545616][ T2685]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   79.545619][ T2685]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   79.545622][ T2685]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   79.545625][ T2685]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   79.545631][ T2685]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   79.545633][ T2685]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   79.545638][ T2685]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   79.545642][ T2685]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   79.545644][ T2685]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   79.545648][ T2685]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   79.545652][ T2685]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   79.545656][ T2685]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   79.545657][ T2685]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   79.545663][ T2685]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   79.545665][ T2685]  ____sys_sendmsg (net/socket.c:2713)
[   79.545668][ T2685]  ? copy_msghdr_from_user (net/socket.c:2650)
[   79.545670][ T2685]  ? sock_write_iter (net/socket.c:1269)
[   79.545671][ T2685]  ? move_addr_to_kernel (net/socket.c:258)
[   79.545678][ T2685]  ___sys_sendmsg (net/socket.c:2767)
[   79.545681][ T2685]  ? copy_msghdr_from_user (net/socket.c:2619)
[   79.545697][ T2685]  __sys_sendmsg (net/socket.c:2799)
[   79.545699][ T2685]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   79.545705][ T2685]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   79.545708][ T2685]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   79.545711][ T2685]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   79.545714][ T2685]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   79.545716][ T2685] RIP: 0033:0x7f16cb1f254e
[   79.545720][ T2685] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   79.545722][ T2685] RSP: 002b:00007ffd89fc41b0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   79.545724][ T2685] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f16cb1f254e
[   79.545726][ T2685] RDX: 0000000000000000 RSI: 00007ffd89fc4260 RDI: 0000000000000005
[   79.545727][ T2685] RBP: 00007ffd89fc41c0 R08: 0000000000000000 R09: 0000000000000000
[   79.545728][ T2685] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a9117f6
[   79.545728][ T2685] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffd89fc4930
| [   80.842560][ T2758] softirqs last disabled at (19320): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   80.842563][ T2758] Preemption disabled at:
| [   80.842563][ T2758] vprintk_emit (kernel/printk/printk.c:2471)
| [   80.842572][ T2758] Tainted: [W]=WARN
[   80.842573][ T2758] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   80.842574][ T2758] Call Trace:
[   80.842576][ T2758]  <TASK>
[   80.842578][ T2758]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   80.842583][ T2758]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   80.842585][ T2758]  __might_resched.cold (kernel/sched/core.c:9234)
[   80.842590][ T2758]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   80.842594][ T2758]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   80.842598][ T2758]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   80.842600][ T2758]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   80.842606][ T2758]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   80.842609][ T2758]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   80.842613][ T2758]  put_chars (drivers/char/virtio_console.c:1176)
[   80.842615][ T2758]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   80.842616][ T2758]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   80.842620][ T2758]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   80.842625][ T2758]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   80.842633][ T2758]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   80.842636][ T2758]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   80.842638][ T2758]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   80.842642][ T2758]  console_emit_next_record (kernel/printk/printk.c:3183)
[   80.842646][ T2758]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   80.842648][ T2758]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   80.842651][ T2758]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   80.842653][ T2758]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   80.842657][ T2758]  console_flush_one_record (kernel/printk/printk.c:3268)
[   80.842661][ T2758]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   80.842663][ T2758]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   80.842668][ T2758]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   80.842671][ T2758]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   80.842673][ T2758]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   80.842674][ T2758]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   80.842678][ T2758]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   80.842680][ T2758]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   80.842683][ T2758]  vprintk_emit (kernel/printk/printk.c:2479)
[   80.842686][ T2758]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   80.842688][ T2758]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   80.842691][ T2758]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   80.842694][ T2758]  _printk (kernel/printk/printk.c:2504)
[   80.842698][ T2758]  ? snapshot_read.cold (user.c:?)
[   80.842701][ T2758]  ? br_multicast_flood (??:?)
[   80.842705][ T2758]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   80.842706][ T2758]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   80.842707][ T2758]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   80.842712][ T2758]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   80.842716][ T2758]  br_init_port (net/bridge/br_stp_if.c:39)
[   80.842718][ T2758]  new_nbp (net/bridge/br_if.c:449)
[   80.842722][ T2758]  br_add_if (net/bridge/br_if.c:592)
[   80.842724][ T2758]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   80.842728][ T2758]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   80.842733][ T2758]  do_set_master (net/core/rtnetlink.c:3071)
[   80.842737][ T2758]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   80.842740][ T2758]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   80.842744][ T2758]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   80.842745][ T2758]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   80.842748][ T2758]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   80.842751][ T2758]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   80.842753][ T2758]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   80.842755][ T2758]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   80.842757][ T2758]  ? kasan_save_stack (mm/kasan/common.c:58)
[   80.842759][ T2758]  ? kasan_save_stack (mm/kasan/common.c:57)
[   80.842761][ T2758]  ? kasan_save_track (mm/kasan/common.c:78)
[   80.842762][ T2758]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   80.842764][ T2758]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   80.842766][ T2758]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   80.842769][ T2758]  ? ___sys_sendmsg (net/socket.c:2758)
[   80.842772][ T2758]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   80.842774][ T2758]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   80.842777][ T2758]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   80.842779][ T2758]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   80.842780][ T2758]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   80.842782][ T2758]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   80.842783][ T2758]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   80.842786][ T2758]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   80.842788][ T2758]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   80.842790][ T2758]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   80.842793][ T2758]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   80.842795][ T2758]  ? nla_get_range_signed (lib/nlattr.c:270)
[   80.842800][ T2758]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   80.842802][ T2758]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   80.842807][ T2758]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   80.842812][ T2758]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   80.842815][ T2758]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   80.842819][ T2758]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   80.842821][ T2758]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   80.842823][ T2758]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   80.842825][ T2758]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   80.842829][ T2758]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   80.842831][ T2758]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   80.842834][ T2758]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   80.842835][ T2758]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   80.842840][ T2758]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   80.842842][ T2758]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   80.842845][ T2758]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   80.842849][ T2758]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   80.842852][ T2758]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   80.842858][ T2758]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   80.842860][ T2758]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   80.842865][ T2758]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   80.842869][ T2758]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   80.842871][ T2758]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   80.842875][ T2758]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   80.842879][ T2758]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   80.842883][ T2758]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   80.842885][ T2758]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   80.842890][ T2758]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   80.842893][ T2758]  ____sys_sendmsg (net/socket.c:2713)
[   80.842895][ T2758]  ? copy_msghdr_from_user (net/socket.c:2650)
[   80.842897][ T2758]  ? sock_write_iter (net/socket.c:1269)
[   80.842899][ T2758]  ? move_addr_to_kernel (net/socket.c:258)
[   80.842906][ T2758]  ___sys_sendmsg (net/socket.c:2767)
[   80.842909][ T2758]  ? copy_msghdr_from_user (net/socket.c:2619)
[   80.842925][ T2758]  __sys_sendmsg (net/socket.c:2799)
[   80.842928][ T2758]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   80.842934][ T2758]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   80.842937][ T2758]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   80.842940][ T2758]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   80.842943][ T2758]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   80.842945][ T2758] RIP: 0033:0x7f1974c0354e
[   80.842949][ T2758] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   80.842951][ T2758] RSP: 002b:00007fff202f4bf0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   80.842953][ T2758] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f1974c0354e
[   80.842955][ T2758] RDX: 0000000000000000 RSI: 00007fff202f4ca0 RDI: 0000000000000005
[   80.842956][ T2758] RBP: 00007fff202f4c00 R08: 0000000000000000 R09: 0000000000000000
[   80.842956][ T2758] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a9117f8
[   80.842957][ T2758] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fff202f5370
| [   82.174947][ T2831] softirqs last disabled at (19980): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   82.174949][ T2831] Preemption disabled at:
| [   82.174950][ T2831] vprintk_emit (kernel/printk/printk.c:2471)
| [   82.174957][ T2831] Tainted: [W]=WARN
[   82.174958][ T2831] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   82.174960][ T2831] Call Trace:
[   82.174961][ T2831]  <TASK>
[   82.174963][ T2831]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   82.174972][ T2831]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   82.174974][ T2831]  __might_resched.cold (kernel/sched/core.c:9234)
[   82.174978][ T2831]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   82.174982][ T2831]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   82.174987][ T2831]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   82.174989][ T2831]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   82.174995][ T2831]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   82.174998][ T2831]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   82.175002][ T2831]  put_chars (drivers/char/virtio_console.c:1176)
[   82.175004][ T2831]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   82.175005][ T2831]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   82.175009][ T2831]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   82.175014][ T2831]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   82.175022][ T2831]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   82.175024][ T2831]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   82.175026][ T2831]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   82.175030][ T2831]  console_emit_next_record (kernel/printk/printk.c:3183)
[   82.175034][ T2831]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   82.175036][ T2831]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   82.175039][ T2831]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   82.175040][ T2831]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   82.175044][ T2831]  console_flush_one_record (kernel/printk/printk.c:3268)
[   82.175048][ T2831]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   82.175050][ T2831]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   82.175055][ T2831]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   82.175058][ T2831]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   82.175060][ T2831]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   82.175061][ T2831]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   82.175065][ T2831]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   82.175067][ T2831]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   82.175069][ T2831]  vprintk_emit (kernel/printk/printk.c:2479)
[   82.175073][ T2831]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   82.175074][ T2831]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   82.175077][ T2831]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   82.175080][ T2831]  _printk (kernel/printk/printk.c:2504)
[   82.175084][ T2831]  ? snapshot_read.cold (user.c:?)
[   82.175087][ T2831]  ? br_multicast_flood (??:?)
[   82.175091][ T2831]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   82.175092][ T2831]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   82.175093][ T2831]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   82.175097][ T2831]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   82.175101][ T2831]  br_init_port (net/bridge/br_stp_if.c:39)
[   82.175104][ T2831]  new_nbp (net/bridge/br_if.c:449)
[   82.175107][ T2831]  br_add_if (net/bridge/br_if.c:592)
[   82.175110][ T2831]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   82.175113][ T2831]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   82.175118][ T2831]  do_set_master (net/core/rtnetlink.c:3071)
[   82.175122][ T2831]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   82.175125][ T2831]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   82.175128][ T2831]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   82.175130][ T2831]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   82.175132][ T2831]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   82.175136][ T2831]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   82.175138][ T2831]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   82.175139][ T2831]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   82.175142][ T2831]  ? kasan_save_stack (mm/kasan/common.c:58)
[   82.175144][ T2831]  ? kasan_save_stack (mm/kasan/common.c:57)
[   82.175145][ T2831]  ? kasan_save_track (mm/kasan/common.c:78)
[   82.175147][ T2831]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   82.175149][ T2831]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   82.175151][ T2831]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   82.175154][ T2831]  ? ___sys_sendmsg (net/socket.c:2758)
[   82.175157][ T2831]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   82.175159][ T2831]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   82.175162][ T2831]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   82.175163][ T2831]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   82.175165][ T2831]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   82.175166][ T2831]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   82.175168][ T2831]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   82.175170][ T2831]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   82.175172][ T2831]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   82.175174][ T2831]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   82.175177][ T2831]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   82.175179][ T2831]  ? nla_get_range_signed (lib/nlattr.c:270)
[   82.175184][ T2831]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   82.175186][ T2831]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   82.175191][ T2831]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   82.175196][ T2831]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   82.175198][ T2831]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   82.175202][ T2831]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   82.175204][ T2831]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   82.175206][ T2831]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   82.175208][ T2831]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   82.175211][ T2831]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   82.175213][ T2831]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   82.175216][ T2831]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   82.175218][ T2831]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   82.175222][ T2831]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   82.175224][ T2831]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   82.175227][ T2831]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   82.175231][ T2831]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   82.175233][ T2831]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   82.175239][ T2831]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   82.175242][ T2831]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   82.175246][ T2831]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   82.175250][ T2831]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   82.175252][ T2831]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   82.175256][ T2831]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   82.175260][ T2831]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   82.175264][ T2831]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   82.175266][ T2831]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   82.175271][ T2831]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   82.175273][ T2831]  ____sys_sendmsg (net/socket.c:2713)
[   82.175276][ T2831]  ? copy_msghdr_from_user (net/socket.c:2650)
[   82.175278][ T2831]  ? sock_write_iter (net/socket.c:1269)
[   82.175279][ T2831]  ? move_addr_to_kernel (net/socket.c:258)
[   82.175287][ T2831]  ___sys_sendmsg (net/socket.c:2767)
[   82.175290][ T2831]  ? copy_msghdr_from_user (net/socket.c:2619)
[   82.175305][ T2831]  __sys_sendmsg (net/socket.c:2799)
[   82.175308][ T2831]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   82.175314][ T2831]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   82.175317][ T2831]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   82.175320][ T2831]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   82.175322][ T2831]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   82.175325][ T2831] RIP: 0033:0x7f0ab4efa54e
[   82.175328][ T2831] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   82.175330][ T2831] RSP: 002b:00007ffda851daf0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   82.175333][ T2831] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f0ab4efa54e
[   82.175334][ T2831] RDX: 0000000000000000 RSI: 00007ffda851dba0 RDI: 0000000000000005
[   82.175335][ T2831] RBP: 00007ffda851db00 R08: 0000000000000000 R09: 0000000000000000
[   82.175336][ T2831] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a9117f9
[   82.175337][ T2831] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffda851e270
| [   83.543831][   T12] softirqs last disabled at (1069456): inet6_fill_ifla6_attrs (net/ipv6/addrconf.c:5883)
| [   83.543833][   T12] Preemption disabled at:
| [   83.543834][   T12] vprintk_emit (kernel/printk/printk.c:2471)
| [   83.543842][   T12] Tainted: [W]=WARN
[   83.543843][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   83.543844][   T12] Workqueue: netns cleanup_net
[   83.543848][   T12] Call Trace:
[   83.543850][   T12]  <TASK>
[   83.543851][   T12]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   83.543857][   T12]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   83.543858][   T12]  __might_resched.cold (kernel/sched/core.c:9234)
[   83.543863][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   83.543867][   T12]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   83.543871][   T12]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   83.543873][   T12]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   83.543879][   T12]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   83.543882][   T12]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   83.543886][   T12]  put_chars (drivers/char/virtio_console.c:1176)
[   83.543888][   T12]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   83.543889][   T12]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   83.543893][   T12]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   83.543896][   T12]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   83.543901][   T12]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   83.543904][   T12]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   83.543910][   T12]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   83.543913][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   83.543918][   T12]  console_emit_next_record (kernel/printk/printk.c:3183)
[   83.543922][   T12]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   83.543923][   T12]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   83.543927][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   83.543928][   T12]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   83.543932][   T12]  console_flush_one_record (kernel/printk/printk.c:3268)
[   83.543937][   T12]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   83.543938][   T12]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   83.543944][   T12]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   83.543947][   T12]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   83.543949][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   83.543950][   T12]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   83.543954][   T12]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   83.543956][   T12]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   83.543958][   T12]  vprintk_emit (kernel/printk/printk.c:2479)
[   83.543962][   T12]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   83.543963][   T12]  ? cleanup_net (net/core/net_namespace.c:706)
[   83.543965][   T12]  ? worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   83.543969][   T12]  ? kthread (kernel/kthread.c:436)
[   83.543972][   T12]  ? ret_from_fork (arch/x86/kernel/process.c:158)
[   83.543974][   T12]  ? ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
[   83.543979][   T12]  _printk (kernel/printk/printk.c:2504)
[   83.543983][   T12]  ? snapshot_read.cold (user.c:?)
[   83.543987][   T12]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   83.543991][   T12]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   83.543995][   T12]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   83.543997][   T12]  ? netdev_notice (net/core/dev.c:13194)
[   83.544002][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   83.544004][   T12]  ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1))
[   83.544006][   T12]  ? down_write_nested (kernel/locking/rwsem.c:1759)
[   83.544008][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   83.544010][   T12]  netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3))
[   83.544014][   T12]  dev_set_allmulti (net/core/dev_api.c:315)
[   83.544018][   T12]  del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341)
[   83.544024][   T12]  br_dev_delete (net/bridge/br_if.c:387)
[   83.544027][   T12]  br_net_exit_rtnl (net/bridge/br.c:414)
[   83.544031][   T12]  ops_undo_list (net/core/net_namespace.c:181 net/core/net_namespace.c:249)
[   83.544034][   T12]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   83.544038][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   83.544039][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   83.544043][   T12]  ? idr_destroy (lib/radix-tree.c:310 lib/radix-tree.c:674 lib/radix-tree.c:1563)
[   83.544047][   T12]  cleanup_net (net/core/net_namespace.c:706)
[   83.544050][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   83.544054][   T12]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   83.544056][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   83.544059][   T12]  process_one_work (kernel/workqueue.c:3387)
[   83.544066][   T12]  ? __queue_delayed_work (kernel/workqueue.c:2622)
[   83.544069][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   83.544076][   T12]  worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   83.544083][   T12]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   83.544085][   T12]  kthread (kernel/kthread.c:436)
[   83.544087][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   83.544091][   T12]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   83.544094][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   83.544096][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1))
[   83.544100][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   83.544103][   T12]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   83.544106][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   84.940006][ T2976] softirqs last disabled at (20914): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   84.940009][ T2976] Preemption disabled at:
| [   84.940009][ T2976] vprintk_emit (kernel/printk/printk.c:2471)
| [   84.940018][ T2976] Tainted: [W]=WARN
[   84.940018][ T2976] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   84.940020][ T2976] Call Trace:
[   84.940022][ T2976]  <TASK>
[   84.940023][ T2976]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   84.940029][ T2976]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   84.940031][ T2976]  __might_resched.cold (kernel/sched/core.c:9234)
[   84.940035][ T2976]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   84.940039][ T2976]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   84.940044][ T2976]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   84.940045][ T2976]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   84.940052][ T2976]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   84.940055][ T2976]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   84.940058][ T2976]  put_chars (drivers/char/virtio_console.c:1176)
[   84.940061][ T2976]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   84.940067][ T2976]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   84.940074][ T2976]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   84.940077][ T2976]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   84.940081][ T2976]  console_emit_next_record (kernel/printk/printk.c:3183)
[   84.940085][ T2976]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   84.940087][ T2976]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   84.940090][ T2976]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   84.940093][ T2976]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   84.940097][ T2976]  console_flush_one_record (kernel/printk/printk.c:3268)
[   84.940101][ T2976]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   84.940103][ T2976]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   84.940108][ T2976]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   84.940111][ T2976]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   84.940113][ T2976]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   84.940114][ T2976]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   84.940118][ T2976]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   84.940120][ T2976]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   84.940122][ T2976]  vprintk_emit (kernel/printk/printk.c:2479)
[   84.940125][ T2976]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   84.940127][ T2976]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   84.940129][ T2976]  ? lock_pin_lock (kernel/locking/lockdep.c:5640 (discriminator 2) kernel/locking/lockdep.c:6003 (discriminator 2) kernel/locking/lockdep.c:5991 (discriminator 2))
[   84.940131][ T2976]  ? __print_lock_name (kernel/locking/lockdep.c:718)
[   84.940135][ T2976]  _printk (kernel/printk/printk.c:2504)
[   84.940138][ T2976]  ? snapshot_read.cold (user.c:?)
[   84.940140][ T2976]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   84.940142][ T2976]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   84.940145][ T2976]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   84.940147][ T2976]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   84.940151][ T2976]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   84.940154][ T2976]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   84.940156][ T2976]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   84.940159][ T2976]  ? netdev_notice (net/core/dev.c:13194)
[   84.940162][ T2976]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   84.940164][ T2976]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   84.940167][ T2976]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   84.940170][ T2976]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   84.940172][ T2976]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   84.940174][ T2976]  ? is_bpf_text_address (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) kernel/bpf/core.c:751 (discriminator 2))
[   84.940180][ T2976]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   84.940182][ T2976]  ? __kernel_text_address (kernel/extable.c:79)
[   84.940185][ T2976]  ? write_profile (profile.c:?)
[   84.940189][ T2976]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   84.940194][ T2976]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   84.940197][ T2976]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   84.940200][ T2976]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   84.940201][ T2976]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   84.940203][ T2976]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   84.940206][ T2976]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   84.940208][ T2976]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   84.940210][ T2976]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   84.940212][ T2976]  ? kasan_save_stack (mm/kasan/common.c:58)
[   84.940214][ T2976]  ? kasan_save_stack (mm/kasan/common.c:57)
[   84.940215][ T2976]  ? kasan_save_track (mm/kasan/common.c:78)
[   84.940216][ T2976]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   84.940218][ T2976]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   84.940220][ T2976]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   84.940223][ T2976]  ? ___sys_sendmsg (net/socket.c:2758)
[   84.940227][ T2976]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   84.940229][ T2976]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   84.940231][ T2976]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   84.940233][ T2976]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   84.940235][ T2976]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   84.940236][ T2976]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   84.940237][ T2976]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   84.940239][ T2976]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   84.940242][ T2976]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   84.940244][ T2976]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   84.940247][ T2976]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   84.940248][ T2976]  ? nla_get_range_signed (lib/nlattr.c:270)
[   84.940253][ T2976]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   84.940255][ T2976]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   84.940260][ T2976]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   84.940265][ T2976]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   84.940267][ T2976]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   84.940271][ T2976]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   84.940273][ T2976]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   84.940275][ T2976]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   84.940277][ T2976]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   84.940280][ T2976]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   84.940283][ T2976]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   84.940286][ T2976]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   84.940288][ T2976]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   84.940292][ T2976]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   84.940294][ T2976]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   84.940297][ T2976]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   84.940300][ T2976]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   84.940303][ T2976]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   84.940309][ T2976]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   84.940311][ T2976]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   84.940316][ T2976]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   84.940319][ T2976]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   84.940322][ T2976]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   84.940326][ T2976]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   84.940330][ T2976]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   84.940334][ T2976]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   84.940335][ T2976]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   84.940340][ T2976]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   84.940343][ T2976]  ____sys_sendmsg (net/socket.c:2713)
[   84.940345][ T2976]  ? copy_msghdr_from_user (net/socket.c:2650)
[   84.940348][ T2976]  ? sock_write_iter (net/socket.c:1269)
[   84.940349][ T2976]  ? move_addr_to_kernel (net/socket.c:258)
[   84.940356][ T2976]  ___sys_sendmsg (net/socket.c:2767)
[   84.940359][ T2976]  ? copy_msghdr_from_user (net/socket.c:2619)
[   84.940374][ T2976]  __sys_sendmsg (net/socket.c:2799)
[   84.940377][ T2976]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   84.940383][ T2976]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   84.940386][ T2976]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   84.940389][ T2976]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   84.940392][ T2976]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   84.940394][ T2976] RIP: 0033:0x7f764218d54e
[   84.940398][ T2976] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   84.940399][ T2976] RSP: 002b:00007ffdfd77aa90 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   84.940402][ T2976] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f764218d54e
[   84.940404][ T2976] RDX: 0000000000000000 RSI: 00007ffdfd77ab40 RDI: 0000000000000005
[   84.940404][ T2976] RBP: 00007ffdfd77aaa0 R08: 0000000000000000 R09: 0000000000000000
[   84.940405][ T2976] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a9117fc
[   84.940406][ T2976] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffdfd77b210
| [   97.261164][ T3293] softirqs last disabled at (17640): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   97.261167][ T3293] Preemption disabled at:
| [   97.261167][ T3293] vprintk_emit (kernel/printk/printk.c:2471)
| [   97.261176][ T3293] Tainted: [W]=WARN
[   97.261177][ T3293] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   97.261178][ T3293] Call Trace:
[   97.261180][ T3293]  <TASK>
[   97.261182][ T3293]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   97.261188][ T3293]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   97.261189][ T3293]  __might_resched.cold (kernel/sched/core.c:9234)
[   97.261194][ T3293]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   97.261198][ T3293]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   97.261203][ T3293]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   97.261205][ T3293]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   97.261212][ T3293]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   97.261215][ T3293]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   97.261218][ T3293]  put_chars (drivers/char/virtio_console.c:1176)
[   97.261221][ T3293]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   97.261222][ T3293]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   97.261226][ T3293]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   97.261232][ T3293]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   97.261240][ T3293]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   97.261242][ T3293]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   97.261244][ T3293]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   97.261249][ T3293]  console_emit_next_record (kernel/printk/printk.c:3183)
[   97.261253][ T3293]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   97.261255][ T3293]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   97.261258][ T3293]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   97.261260][ T3293]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   97.261264][ T3293]  console_flush_one_record (kernel/printk/printk.c:3268)
[   97.261268][ T3293]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   97.261270][ T3293]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   97.261276][ T3293]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   97.261279][ T3293]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   97.261281][ T3293]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   97.261283][ T3293]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   97.261287][ T3293]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   97.261288][ T3293]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   97.261291][ T3293]  vprintk_emit (kernel/printk/printk.c:2479)
[   97.261295][ T3293]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   97.261297][ T3293]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   97.261300][ T3293]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   97.261303][ T3293]  _printk (kernel/printk/printk.c:2504)
[   97.261307][ T3293]  ? snapshot_read.cold (user.c:?)
[   97.261311][ T3293]  ? br_multicast_flood (??:?)
[   97.261314][ T3293]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   97.261315][ T3293]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   97.261317][ T3293]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   97.261321][ T3293]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   97.261326][ T3293]  br_init_port (net/bridge/br_stp_if.c:39)
[   97.261329][ T3293]  new_nbp (net/bridge/br_if.c:449)
[   97.261332][ T3293]  br_add_if (net/bridge/br_if.c:592)
[   97.261335][ T3293]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   97.261339][ T3293]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   97.261344][ T3293]  do_set_master (net/core/rtnetlink.c:3071)
[   97.261348][ T3293]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   97.261352][ T3293]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   97.261355][ T3293]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   97.261356][ T3293]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   97.261359][ T3293]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   97.261363][ T3293]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   97.261365][ T3293]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   97.261367][ T3293]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   97.261369][ T3293]  ? kasan_save_stack (mm/kasan/common.c:58)
[   97.261372][ T3293]  ? kasan_save_stack (mm/kasan/common.c:57)
[   97.261373][ T3293]  ? kasan_save_track (mm/kasan/common.c:78)
[   97.261374][ T3293]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   97.261377][ T3293]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   97.261379][ T3293]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   97.261382][ T3293]  ? ___sys_sendmsg (net/socket.c:2758)
[   97.261386][ T3293]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   97.261388][ T3293]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   97.261391][ T3293]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   97.261392][ T3293]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   97.261394][ T3293]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   97.261395][ T3293]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   97.261397][ T3293]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   97.261399][ T3293]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   97.261402][ T3293]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   97.261404][ T3293]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   97.261407][ T3293]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   97.261409][ T3293]  ? nla_get_range_signed (lib/nlattr.c:270)
[   97.261414][ T3293]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   97.261416][ T3293]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   97.261421][ T3293]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   97.261427][ T3293]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   97.261429][ T3293]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   97.261434][ T3293]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   97.261436][ T3293]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   97.261438][ T3293]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   97.261440][ T3293]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   97.261444][ T3293]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   97.261446][ T3293]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   97.261449][ T3293]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   97.261451][ T3293]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   97.261455][ T3293]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   97.261457][ T3293]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   97.261461][ T3293]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   97.261464][ T3293]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   97.261467][ T3293]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   97.261474][ T3293]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   97.261476][ T3293]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   97.261481][ T3293]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   97.261485][ T3293]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   97.261488][ T3293]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   97.261492][ T3293]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   97.261497][ T3293]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   97.261501][ T3293]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   97.261502][ T3293]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   97.261508][ T3293]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   97.261511][ T3293]  ____sys_sendmsg (net/socket.c:2713)
[   97.261513][ T3293]  ? copy_msghdr_from_user (net/socket.c:2650)
[   97.261515][ T3293]  ? sock_write_iter (net/socket.c:1269)
[   97.261517][ T3293]  ? move_addr_to_kernel (net/socket.c:258)
[   97.261525][ T3293]  ___sys_sendmsg (net/socket.c:2767)
[   97.261528][ T3293]  ? copy_msghdr_from_user (net/socket.c:2619)
[   97.261545][ T3293]  __sys_sendmsg (net/socket.c:2799)
[   97.261548][ T3293]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   97.261554][ T3293]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   97.261557][ T3293]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   97.261560][ T3293]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   97.261563][ T3293]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   97.261566][ T3293] RIP: 0033:0x7fd437f3754e
[   97.261570][ T3293] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   97.261571][ T3293] RSP: 002b:00007fffd631e830 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   97.261574][ T3293] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fd437f3754e
[   97.261575][ T3293] RDX: 0000000000000000 RSI: 00007fffd631e8e0 RDI: 0000000000000005
[   97.261576][ T3293] RBP: 00007fffd631e840 R08: 0000000000000000 R09: 0000000000000000
[   97.261577][ T3293] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a911808
[   97.261578][ T3293] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fffd631efb0
| [   98.571090][ T3380] softirqs last disabled at (23936): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   98.571093][ T3380] Preemption disabled at:
| [   98.571093][ T3380] vprintk_emit (kernel/printk/printk.c:2471)
| [   98.571101][ T3380] Tainted: [W]=WARN
[   98.571102][ T3380] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   98.571103][ T3380] Call Trace:
[   98.571105][ T3380]  <TASK>
[   98.571107][ T3380]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   98.571112][ T3380]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   98.571114][ T3380]  __might_resched.cold (kernel/sched/core.c:9234)
[   98.571118][ T3380]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   98.571122][ T3380]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   98.571126][ T3380]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   98.571128][ T3380]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   98.571135][ T3380]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   98.571138][ T3380]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   98.571141][ T3380]  put_chars (drivers/char/virtio_console.c:1176)
[   98.571144][ T3380]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   98.571145][ T3380]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   98.571148][ T3380]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   98.571154][ T3380]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   98.571162][ T3380]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   98.571164][ T3380]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   98.571166][ T3380]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   98.571170][ T3380]  console_emit_next_record (kernel/printk/printk.c:3183)
[   98.571174][ T3380]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   98.571176][ T3380]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   98.571179][ T3380]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   98.571181][ T3380]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   98.571185][ T3380]  console_flush_one_record (kernel/printk/printk.c:3268)
[   98.571189][ T3380]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   98.571191][ T3380]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   98.571196][ T3380]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   98.571199][ T3380]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   98.571201][ T3380]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   98.571202][ T3380]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   98.571206][ T3380]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   98.571208][ T3380]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   98.571210][ T3380]  vprintk_emit (kernel/printk/printk.c:2479)
[   98.571213][ T3380]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   98.571215][ T3380]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   98.571218][ T3380]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   98.571221][ T3380]  _printk (kernel/printk/printk.c:2504)
[   98.571225][ T3380]  ? snapshot_read.cold (user.c:?)
[   98.571229][ T3380]  ? br_multicast_flood (??:?)
[   98.571232][ T3380]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   98.571233][ T3380]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   98.571235][ T3380]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   98.571239][ T3380]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   98.571243][ T3380]  br_init_port (net/bridge/br_stp_if.c:39)
[   98.571246][ T3380]  new_nbp (net/bridge/br_if.c:449)
[   98.571250][ T3380]  br_add_if (net/bridge/br_if.c:592)
[   98.571252][ T3380]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   98.571255][ T3380]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   98.571261][ T3380]  do_set_master (net/core/rtnetlink.c:3071)
[   98.571264][ T3380]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   98.571267][ T3380]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   98.571271][ T3380]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   98.571272][ T3380]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   98.571275][ T3380]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   98.571278][ T3380]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   98.571280][ T3380]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   98.571282][ T3380]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   98.571284][ T3380]  ? kasan_save_stack (mm/kasan/common.c:58)
[   98.571286][ T3380]  ? kasan_save_stack (mm/kasan/common.c:57)
[   98.571288][ T3380]  ? kasan_save_track (mm/kasan/common.c:78)
[   98.571289][ T3380]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   98.571291][ T3380]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   98.571293][ T3380]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   98.571296][ T3380]  ? ___sys_sendmsg (net/socket.c:2758)
[   98.571299][ T3380]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   98.571301][ T3380]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   98.571304][ T3380]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   98.571306][ T3380]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   98.571307][ T3380]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   98.571309][ T3380]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   98.571310][ T3380]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   98.571313][ T3380]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   98.571315][ T3380]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   98.571317][ T3380]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   98.571321][ T3380]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   98.571322][ T3380]  ? nla_get_range_signed (lib/nlattr.c:270)
[   98.571326][ T3380]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   98.571329][ T3380]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   98.571334][ T3380]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   98.571339][ T3380]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   98.571341][ T3380]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   98.571345][ T3380]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   98.571347][ T3380]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   98.571349][ T3380]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   98.571351][ T3380]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   98.571355][ T3380]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   98.571357][ T3380]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   98.571360][ T3380]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   98.571361][ T3380]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   98.571366][ T3380]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   98.571368][ T3380]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   98.571371][ T3380]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   98.571374][ T3380]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   98.571377][ T3380]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   98.571383][ T3380]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   98.571385][ T3380]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   98.571390][ T3380]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   98.571394][ T3380]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   98.571396][ T3380]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   98.571401][ T3380]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   98.571405][ T3380]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   98.571408][ T3380]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   98.571410][ T3380]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   98.571415][ T3380]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   98.571418][ T3380]  ____sys_sendmsg (net/socket.c:2713)
[   98.571420][ T3380]  ? copy_msghdr_from_user (net/socket.c:2650)
[   98.571422][ T3380]  ? sock_write_iter (net/socket.c:1269)
[   98.571424][ T3380]  ? move_addr_to_kernel (net/socket.c:258)
[   98.571431][ T3380]  ___sys_sendmsg (net/socket.c:2767)
[   98.571434][ T3380]  ? copy_msghdr_from_user (net/socket.c:2619)
[   98.571450][ T3380]  __sys_sendmsg (net/socket.c:2799)
[   98.571453][ T3380]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   98.571459][ T3380]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   98.571462][ T3380]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   98.571465][ T3380]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   98.571468][ T3380]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   98.571470][ T3380] RIP: 0033:0x7f5a8373454e
[   98.571474][ T3380] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   98.571475][ T3380] RSP: 002b:00007fffa8751bc0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   98.571478][ T3380] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f5a8373454e
[   98.571479][ T3380] RDX: 0000000000000000 RSI: 00007fffa8751c70 RDI: 0000000000000005
[   98.571480][ T3380] RBP: 00007fffa8751bd0 R08: 0000000000000000 R09: 0000000000000000
[   98.571481][ T3380] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a911809
[   98.571482][ T3380] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fffa8752340
| [   99.877933][ T3454] softirqs last disabled at (20592): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   99.877936][ T3454] Preemption disabled at:
| [   99.877936][ T3454] vprintk_emit (kernel/printk/printk.c:2471)
| [   99.877945][ T3454] Tainted: [W]=WARN
[   99.877945][ T3454] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   99.877947][ T3454] Call Trace:
[   99.877949][ T3454]  <TASK>
[   99.877950][ T3454]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   99.877956][ T3454]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   99.877958][ T3454]  __might_resched.cold (kernel/sched/core.c:9234)
[   99.877962][ T3454]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   99.877966][ T3454]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   99.877973][ T3454]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   99.877975][ T3454]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   99.877981][ T3454]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   99.877984][ T3454]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   99.877988][ T3454]  put_chars (drivers/char/virtio_console.c:1176)
[   99.877990][ T3454]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   99.877992][ T3454]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   99.877995][ T3454]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   99.878001][ T3454]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   99.878009][ T3454]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   99.878011][ T3454]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   99.878013][ T3454]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   99.878017][ T3454]  console_emit_next_record (kernel/printk/printk.c:3183)
[   99.878022][ T3454]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   99.878023][ T3454]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   99.878027][ T3454]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   99.878028][ T3454]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   99.878032][ T3454]  console_flush_one_record (kernel/printk/printk.c:3268)
[   99.878037][ T3454]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   99.878038][ T3454]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   99.878044][ T3454]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   99.878047][ T3454]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   99.878048][ T3454]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   99.878050][ T3454]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   99.878054][ T3454]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   99.878056][ T3454]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   99.878058][ T3454]  vprintk_emit (kernel/printk/printk.c:2479)
[   99.878061][ T3454]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   99.878063][ T3454]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   99.878066][ T3454]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   99.878069][ T3454]  _printk (kernel/printk/printk.c:2504)
[   99.878073][ T3454]  ? snapshot_read.cold (user.c:?)
[   99.878077][ T3454]  ? br_multicast_flood (??:?)
[   99.878080][ T3454]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   99.878081][ T3454]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   99.878083][ T3454]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   99.878087][ T3454]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   99.878091][ T3454]  br_init_port (net/bridge/br_stp_if.c:39)
[   99.878094][ T3454]  new_nbp (net/bridge/br_if.c:449)
[   99.878097][ T3454]  br_add_if (net/bridge/br_if.c:592)
[   99.878100][ T3454]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   99.878104][ T3454]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   99.878109][ T3454]  do_set_master (net/core/rtnetlink.c:3071)
[   99.878113][ T3454]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   99.878116][ T3454]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   99.878119][ T3454]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   99.878121][ T3454]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   99.878123][ T3454]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   99.878127][ T3454]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   99.878129][ T3454]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   99.878131][ T3454]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   99.878133][ T3454]  ? kasan_save_stack (mm/kasan/common.c:58)
[   99.878135][ T3454]  ? kasan_save_stack (mm/kasan/common.c:57)
[   99.878136][ T3454]  ? kasan_save_track (mm/kasan/common.c:78)
[   99.878138][ T3454]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   99.878140][ T3454]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   99.878142][ T3454]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   99.878145][ T3454]  ? ___sys_sendmsg (net/socket.c:2758)
[   99.878148][ T3454]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   99.878150][ T3454]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   99.878153][ T3454]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   99.878155][ T3454]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   99.878156][ T3454]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   99.878157][ T3454]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   99.878159][ T3454]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   99.878161][ T3454]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   99.878164][ T3454]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   99.878166][ T3454]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   99.878169][ T3454]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   99.878170][ T3454]  ? nla_get_range_signed (lib/nlattr.c:270)
[   99.878175][ T3454]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   99.878177][ T3454]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   99.878183][ T3454]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   99.878188][ T3454]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   99.878190][ T3454]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   99.878195][ T3454]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   99.878197][ T3454]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   99.878199][ T3454]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   99.878201][ T3454]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   99.878204][ T3454]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   99.878207][ T3454]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   99.878210][ T3454]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   99.878211][ T3454]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   99.878215][ T3454]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   99.878217][ T3454]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   99.878221][ T3454]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   99.878224][ T3454]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   99.878227][ T3454]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   99.878233][ T3454]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   99.878236][ T3454]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   99.878240][ T3454]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   99.878244][ T3454]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   99.878247][ T3454]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   99.878251][ T3454]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   99.878255][ T3454]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   99.878259][ T3454]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   99.878260][ T3454]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   99.878266][ T3454]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   99.878268][ T3454]  ____sys_sendmsg (net/socket.c:2713)
[   99.878271][ T3454]  ? copy_msghdr_from_user (net/socket.c:2650)
[   99.878273][ T3454]  ? sock_write_iter (net/socket.c:1269)
[   99.878274][ T3454]  ? move_addr_to_kernel (net/socket.c:258)
[   99.878282][ T3454]  ___sys_sendmsg (net/socket.c:2767)
[   99.878285][ T3454]  ? copy_msghdr_from_user (net/socket.c:2619)
[   99.878302][ T3454]  __sys_sendmsg (net/socket.c:2799)
[   99.878305][ T3454]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   99.878311][ T3454]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   99.878314][ T3454]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   99.878317][ T3454]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   99.878320][ T3454]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   99.878323][ T3454] RIP: 0033:0x7fc9bd49854e
[   99.878326][ T3454] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   99.878328][ T3454] RSP: 002b:00007ffce5996fc0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   99.878331][ T3454] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fc9bd49854e
[   99.878332][ T3454] RDX: 0000000000000000 RSI: 00007ffce5997070 RDI: 0000000000000005
[   99.878333][ T3454] RBP: 00007ffce5996fd0 R08: 0000000000000000 R09: 0000000000000000
[   99.878334][ T3454] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91180b
[   99.878335][ T3454] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffce5997740
| [  101.107626][ T3535] softirqs last disabled at (21448): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [  101.107629][ T3535] Preemption disabled at:
| [  101.107629][ T3535] vprintk_emit (kernel/printk/printk.c:2471)
| [  101.107637][ T3535] Tainted: [W]=WARN
[  101.107638][ T3535] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  101.107644][ T3535] Call Trace:
[  101.107646][ T3535]  <TASK>
[  101.107647][ T3535]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[  101.107653][ T3535]  ? vprintk_emit (kernel/printk/printk.c:2471)
[  101.107654][ T3535]  __might_resched.cold (kernel/sched/core.c:9234)
[  101.107659][ T3535]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[  101.107663][ T3535]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[  101.107667][ T3535]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[  101.107669][ T3535]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[  101.107676][ T3535]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[  101.107678][ T3535]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[  101.107682][ T3535]  put_chars (drivers/char/virtio_console.c:1176)
[  101.107685][ T3535]  ? __send_to_port (drivers/char/virtio_console.c:654)
[  101.107686][ T3535]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[  101.107690][ T3535]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[  101.107695][ T3535]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[  101.107703][ T3535]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[  101.107705][ T3535]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  101.107707][ T3535]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  101.107711][ T3535]  console_emit_next_record (kernel/printk/printk.c:3183)
[  101.107715][ T3535]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[  101.107717][ T3535]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[  101.107720][ T3535]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  101.107722][ T3535]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  101.107726][ T3535]  console_flush_one_record (kernel/printk/printk.c:3268)
[  101.107730][ T3535]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[  101.107732][ T3535]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[  101.107737][ T3535]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[  101.107740][ T3535]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[  101.107742][ T3535]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  101.107743][ T3535]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[  101.107747][ T3535]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[  101.107749][ T3535]  ? vprintk_emit (kernel/printk/printk.c:2478)
[  101.107751][ T3535]  vprintk_emit (kernel/printk/printk.c:2479)
[  101.107754][ T3535]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[  101.107756][ T3535]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[  101.107761][ T3535]  _printk (kernel/printk/printk.c:2504)
[  101.107765][ T3535]  ? snapshot_read.cold (user.c:?)
[  101.107768][ T3535]  ? br_multicast_flood (??:?)
[  101.107771][ T3535]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[  101.107773][ T3535]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[  101.107774][ T3535]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[  101.107778][ T3535]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[  101.107782][ T3535]  br_init_port (net/bridge/br_stp_if.c:39)
[  101.107785][ T3535]  new_nbp (net/bridge/br_if.c:449)
[  101.107789][ T3535]  br_add_if (net/bridge/br_if.c:592)
[  101.107791][ T3535]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[  101.107795][ T3535]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[  101.107800][ T3535]  do_set_master (net/core/rtnetlink.c:3071)
[  101.107803][ T3535]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[  101.107807][ T3535]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[  101.107810][ T3535]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[  101.107812][ T3535]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[  101.107814][ T3535]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[  101.107818][ T3535]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[  101.107820][ T3535]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[  101.107821][ T3535]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[  101.107824][ T3535]  ? kasan_save_stack (mm/kasan/common.c:58)
[  101.107826][ T3535]  ? kasan_save_stack (mm/kasan/common.c:57)
[  101.107827][ T3535]  ? kasan_save_track (mm/kasan/common.c:78)
[  101.107829][ T3535]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[  101.107831][ T3535]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[  101.107833][ T3535]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[  101.107836][ T3535]  ? ___sys_sendmsg (net/socket.c:2758)
[  101.107839][ T3535]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[  101.107841][ T3535]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[  101.107844][ T3535]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  101.107846][ T3535]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  101.107847][ T3535]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  101.107848][ T3535]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  101.107850][ T3535]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[  101.107852][ T3535]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[  101.107855][ T3535]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[  101.107857][ T3535]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[  101.107860][ T3535]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[  101.107861][ T3535]  ? nla_get_range_signed (lib/nlattr.c:270)
[  101.107866][ T3535]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  101.107868][ T3535]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[  101.107873][ T3535]  rtnl_newlink (net/core/rtnetlink.c:4215)
[  101.107878][ T3535]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[  101.107880][ T3535]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[  101.107885][ T3535]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[  101.107886][ T3535]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[  101.107889][ T3535]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[  101.107890][ T3535]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[  101.107894][ T3535]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[  101.107896][ T3535]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[  101.107899][ T3535]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[  101.107900][ T3535]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[  101.107905][ T3535]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[  101.107907][ T3535]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[  101.107910][ T3535]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[  101.107913][ T3535]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[  101.107916][ T3535]  ? netlink_ack (./include/linux/skbuff.h:2718)
[  101.107922][ T3535]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[  101.107924][ T3535]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[  101.107928][ T3535]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[  101.107932][ T3535]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[  101.107935][ T3535]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[  101.107939][ T3535]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[  101.107943][ T3535]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[  101.107946][ T3535]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[  101.107948][ T3535]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[  101.107953][ T3535]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[  101.107956][ T3535]  ____sys_sendmsg (net/socket.c:2713)
[  101.107958][ T3535]  ? copy_msghdr_from_user (net/socket.c:2650)
[  101.107961][ T3535]  ? sock_write_iter (net/socket.c:1269)
[  101.107962][ T3535]  ? move_addr_to_kernel (net/socket.c:258)
[  101.107972][ T3535]  ___sys_sendmsg (net/socket.c:2767)
[  101.107974][ T3535]  ? copy_msghdr_from_user (net/socket.c:2619)
[  101.107990][ T3535]  __sys_sendmsg (net/socket.c:2799)
[  101.107993][ T3535]  ? __sys_sendmsg_sock (net/socket.c:2780)
[  101.107999][ T3535]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  101.108002][ T3535]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[  101.108005][ T3535]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[  101.108008][ T3535]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[  101.108010][ T3535] RIP: 0033:0x7f66d170354e
[  101.108014][ T3535] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[  101.108016][ T3535] RSP: 002b:00007fffd37701c0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[  101.108018][ T3535] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f66d170354e
[  101.108020][ T3535] RDX: 0000000000000000 RSI: 00007fffd3770270 RDI: 0000000000000005
[  101.108020][ T3535] RBP: 00007fffd37701d0 R08: 0000000000000000 R09: 0000000000000000
[  101.108021][ T3535] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91180c
[  101.108022][ T3535] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fffd3770940
| [  102.917679][ T3639] softirqs last disabled at (22424): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [  102.917681][ T3639] Preemption disabled at:
| [  102.917682][ T3639] vprintk_emit (kernel/printk/printk.c:2471)
| [  102.917690][ T3639] Tainted: [W]=WARN
[  102.917691][ T3639] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  102.917693][ T3639] Call Trace:
[  102.917695][ T3639]  <TASK>
[  102.917696][ T3639]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[  102.917702][ T3639]  ? vprintk_emit (kernel/printk/printk.c:2471)
[  102.917703][ T3639]  __might_resched.cold (kernel/sched/core.c:9234)
[  102.917708][ T3639]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[  102.917712][ T3639]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[  102.917716][ T3639]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[  102.917718][ T3639]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[  102.917725][ T3639]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[  102.917728][ T3639]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[  102.917731][ T3639]  put_chars (drivers/char/virtio_console.c:1176)
[  102.917734][ T3639]  ? __send_to_port (drivers/char/virtio_console.c:654)
[  102.917735][ T3639]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[  102.917738][ T3639]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[  102.917744][ T3639]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[  102.917751][ T3639]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[  102.917754][ T3639]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  102.917756][ T3639]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  102.917760][ T3639]  console_emit_next_record (kernel/printk/printk.c:3183)
[  102.917764][ T3639]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[  102.917766][ T3639]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[  102.917769][ T3639]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  102.917771][ T3639]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  102.917775][ T3639]  console_flush_one_record (kernel/printk/printk.c:3268)
[  102.917779][ T3639]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[  102.917781][ T3639]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[  102.917786][ T3639]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[  102.917789][ T3639]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[  102.917791][ T3639]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  102.917792][ T3639]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[  102.917796][ T3639]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[  102.917798][ T3639]  ? vprintk_emit (kernel/printk/printk.c:2478)
[  102.917801][ T3639]  vprintk_emit (kernel/printk/printk.c:2479)
[  102.917804][ T3639]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[  102.917806][ T3639]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[  102.917808][ T3639]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[  102.917812][ T3639]  _printk (kernel/printk/printk.c:2504)
[  102.917816][ T3639]  ? snapshot_read.cold (user.c:?)
[  102.917819][ T3639]  ? br_multicast_flood (??:?)
[  102.917823][ T3639]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[  102.917824][ T3639]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[  102.917825][ T3639]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[  102.917829][ T3639]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[  102.917833][ T3639]  br_init_port (net/bridge/br_stp_if.c:39)
[  102.917836][ T3639]  new_nbp (net/bridge/br_if.c:449)
[  102.917840][ T3639]  br_add_if (net/bridge/br_if.c:592)
[  102.917842][ T3639]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[  102.917846][ T3639]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[  102.917851][ T3639]  do_set_master (net/core/rtnetlink.c:3071)
[  102.917855][ T3639]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[  102.917858][ T3639]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[  102.917862][ T3639]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[  102.917863][ T3639]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[  102.917865][ T3639]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[  102.917869][ T3639]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[  102.917871][ T3639]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[  102.917873][ T3639]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[  102.917875][ T3639]  ? kasan_save_stack (mm/kasan/common.c:58)
[  102.917877][ T3639]  ? kasan_save_stack (mm/kasan/common.c:57)
[  102.917879][ T3639]  ? kasan_save_track (mm/kasan/common.c:78)
[  102.917880][ T3639]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[  102.917882][ T3639]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[  102.917884][ T3639]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[  102.917887][ T3639]  ? ___sys_sendmsg (net/socket.c:2758)
[  102.917891][ T3639]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[  102.917893][ T3639]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[  102.917895][ T3639]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  102.917897][ T3639]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  102.917898][ T3639]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  102.917899][ T3639]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  102.917901][ T3639]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[  102.917904][ T3639]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[  102.917906][ T3639]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[  102.917908][ T3639]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[  102.917912][ T3639]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[  102.917914][ T3639]  ? nla_get_range_signed (lib/nlattr.c:270)
[  102.917919][ T3639]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  102.917922][ T3639]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[  102.917927][ T3639]  rtnl_newlink (net/core/rtnetlink.c:4215)
[  102.917932][ T3639]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[  102.917934][ T3639]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[  102.917939][ T3639]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[  102.917941][ T3639]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[  102.917943][ T3639]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[  102.917944][ T3639]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[  102.917948][ T3639]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[  102.917950][ T3639]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[  102.917953][ T3639]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[  102.917955][ T3639]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[  102.917959][ T3639]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[  102.917961][ T3639]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[  102.917965][ T3639]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[  102.917968][ T3639]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[  102.917970][ T3639]  ? netlink_ack (./include/linux/skbuff.h:2718)
[  102.917977][ T3639]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[  102.917979][ T3639]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[  102.917983][ T3639]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[  102.917988][ T3639]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[  102.917990][ T3639]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[  102.917994][ T3639]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[  102.917998][ T3639]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[  102.918002][ T3639]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[  102.918004][ T3639]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[  102.918009][ T3639]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[  102.918012][ T3639]  ____sys_sendmsg (net/socket.c:2713)
[  102.918014][ T3639]  ? copy_msghdr_from_user (net/socket.c:2650)
[  102.918016][ T3639]  ? sock_write_iter (net/socket.c:1269)
[  102.918018][ T3639]  ? move_addr_to_kernel (net/socket.c:258)
[  102.918025][ T3639]  ___sys_sendmsg (net/socket.c:2767)
[  102.918028][ T3639]  ? copy_msghdr_from_user (net/socket.c:2619)
[  102.918045][ T3639]  __sys_sendmsg (net/socket.c:2799)
[  102.918047][ T3639]  ? __sys_sendmsg_sock (net/socket.c:2780)
[  102.918054][ T3639]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  102.918057][ T3639]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[  102.918059][ T3639]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[  102.918062][ T3639]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[  102.918065][ T3639] RIP: 0033:0x7f08d1dc654e
[  102.918068][ T3639] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[  102.918070][ T3639] RSP: 002b:00007ffc54202660 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[  102.918073][ T3639] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f08d1dc654e
[  102.918074][ T3639] RDX: 0000000000000000 RSI: 00007ffc54202710 RDI: 0000000000000005
[  102.918075][ T3639] RBP: 00007ffc54202670 R08: 0000000000000000 R09: 0000000000000000
[  102.918076][ T3639] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91180e
[  102.918077][ T3639] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffc54202de0
| [  104.208905][ T3708] softirqs last disabled at (14033): do_softirq (kernel/softirq.c:546 (discriminator 19) kernel/softirq.c:533 (discriminator 19))
| [  104.208907][ T3708] Preemption disabled at:
| [  104.208908][ T3708] vprintk_emit (kernel/printk/printk.c:2471)
| [  104.208916][ T3708] Tainted: [W]=WARN
[  104.208916][ T3708] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  104.208918][ T3708] Call Trace:
[  104.208919][ T3708]  <TASK>
[  104.208921][ T3708]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[  104.208926][ T3708]  ? vprintk_emit (kernel/printk/printk.c:2471)
[  104.208928][ T3708]  __might_resched.cold (kernel/sched/core.c:9234)
[  104.208932][ T3708]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[  104.208936][ T3708]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[  104.208941][ T3708]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[  104.208943][ T3708]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[  104.208949][ T3708]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[  104.208952][ T3708]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[  104.208956][ T3708]  put_chars (drivers/char/virtio_console.c:1176)
[  104.208958][ T3708]  ? __send_to_port (drivers/char/virtio_console.c:654)
[  104.208959][ T3708]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[  104.208963][ T3708]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[  104.208970][ T3708]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[  104.208978][ T3708]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[  104.208981][ T3708]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  104.208983][ T3708]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  104.208987][ T3708]  console_emit_next_record (kernel/printk/printk.c:3183)
[  104.208991][ T3708]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[  104.208993][ T3708]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[  104.208996][ T3708]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  104.208998][ T3708]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  104.209001][ T3708]  console_flush_one_record (kernel/printk/printk.c:3268)
[  104.209006][ T3708]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[  104.209008][ T3708]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[  104.209013][ T3708]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[  104.209016][ T3708]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[  104.209018][ T3708]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  104.209019][ T3708]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[  104.209023][ T3708]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[  104.209025][ T3708]  ? vprintk_emit (kernel/printk/printk.c:2478)
[  104.209028][ T3708]  vprintk_emit (kernel/printk/printk.c:2479)
[  104.209031][ T3708]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[  104.209033][ T3708]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[  104.209036][ T3708]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[  104.209039][ T3708]  _printk (kernel/printk/printk.c:2504)
[  104.209043][ T3708]  ? snapshot_read.cold (user.c:?)
[  104.209046][ T3708]  ? br_multicast_flood (??:?)
[  104.209049][ T3708]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[  104.209051][ T3708]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[  104.209052][ T3708]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[  104.209056][ T3708]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[  104.209060][ T3708]  br_init_port (net/bridge/br_stp_if.c:39)
[  104.209063][ T3708]  new_nbp (net/bridge/br_if.c:449)
[  104.209067][ T3708]  br_add_if (net/bridge/br_if.c:592)
[  104.209069][ T3708]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[  104.209072][ T3708]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[  104.209078][ T3708]  do_set_master (net/core/rtnetlink.c:3071)
[  104.209082][ T3708]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[  104.209085][ T3708]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[  104.209088][ T3708]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[  104.209090][ T3708]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[  104.209092][ T3708]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[  104.209096][ T3708]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[  104.209098][ T3708]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[  104.209099][ T3708]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[  104.209102][ T3708]  ? kasan_save_stack (mm/kasan/common.c:58)
[  104.209104][ T3708]  ? kasan_save_stack (mm/kasan/common.c:57)
[  104.209105][ T3708]  ? kasan_save_track (mm/kasan/common.c:78)
[  104.209107][ T3708]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[  104.209109][ T3708]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[  104.209111][ T3708]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[  104.209114][ T3708]  ? ___sys_sendmsg (net/socket.c:2758)
[  104.209118][ T3708]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[  104.209120][ T3708]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[  104.209123][ T3708]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  104.209124][ T3708]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  104.209126][ T3708]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  104.209127][ T3708]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  104.209129][ T3708]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[  104.209131][ T3708]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[  104.209134][ T3708]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[  104.209136][ T3708]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[  104.209139][ T3708]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[  104.209140][ T3708]  ? nla_get_range_signed (lib/nlattr.c:270)
[  104.209145][ T3708]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  104.209147][ T3708]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[  104.209152][ T3708]  rtnl_newlink (net/core/rtnetlink.c:4215)
[  104.209158][ T3708]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[  104.209160][ T3708]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[  104.209164][ T3708]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[  104.209166][ T3708]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[  104.209168][ T3708]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[  104.209170][ T3708]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[  104.209174][ T3708]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[  104.209176][ T3708]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[  104.209179][ T3708]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[  104.209180][ T3708]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[  104.209185][ T3708]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[  104.209187][ T3708]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[  104.209190][ T3708]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[  104.209193][ T3708]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[  104.209196][ T3708]  ? netlink_ack (./include/linux/skbuff.h:2718)
[  104.209203][ T3708]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[  104.209205][ T3708]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[  104.209209][ T3708]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[  104.209213][ T3708]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[  104.209216][ T3708]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[  104.209220][ T3708]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[  104.209224][ T3708]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[  104.209228][ T3708]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[  104.209229][ T3708]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[  104.209235][ T3708]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[  104.209238][ T3708]  ____sys_sendmsg (net/socket.c:2713)
[  104.209240][ T3708]  ? copy_msghdr_from_user (net/socket.c:2650)
[  104.209242][ T3708]  ? sock_write_iter (net/socket.c:1269)
[  104.209244][ T3708]  ? move_addr_to_kernel (net/socket.c:258)
[  104.209251][ T3708]  ___sys_sendmsg (net/socket.c:2767)
[  104.209254][ T3708]  ? copy_msghdr_from_user (net/socket.c:2619)
[  104.209270][ T3708]  __sys_sendmsg (net/socket.c:2799)
[  104.209273][ T3708]  ? __sys_sendmsg_sock (net/socket.c:2780)
[  104.209279][ T3708]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  104.209282][ T3708]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[  104.209285][ T3708]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[  104.209288][ T3708]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[  104.209290][ T3708] RIP: 0033:0x7f9e630c454e
[  104.209294][ T3708] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[  104.209295][ T3708] RSP: 002b:00007ffd4839b330 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[  104.209298][ T3708] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f9e630c454e
[  104.209300][ T3708] RDX: 0000000000000000 RSI: 00007ffd4839b3e0 RDI: 0000000000000005
[  104.209300][ T3708] RBP: 00007ffd4839b340 R08: 0000000000000000 R09: 0000000000000000
[  104.209301][ T3708] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91180f
[  104.209302][ T3708] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffd4839bab0
| [  105.421298][ T3786] softirqs last disabled at (16808): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [  105.421300][ T3786] Preemption disabled at:
| [  105.421301][ T3786] vprintk_emit (kernel/printk/printk.c:2471)
| [  105.421309][ T3786] Tainted: [W]=WARN
[  105.421310][ T3786] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  105.421311][ T3786] Call Trace:
[  105.421313][ T3786]  <TASK>
[  105.421315][ T3786]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[  105.421320][ T3786]  ? vprintk_emit (kernel/printk/printk.c:2471)
[  105.421322][ T3786]  __might_resched.cold (kernel/sched/core.c:9234)
[  105.421327][ T3786]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[  105.421331][ T3786]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[  105.421335][ T3786]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[  105.421337][ T3786]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[  105.421344][ T3786]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[  105.421347][ T3786]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[  105.421351][ T3786]  put_chars (drivers/char/virtio_console.c:1176)
[  105.421353][ T3786]  ? __send_to_port (drivers/char/virtio_console.c:654)
[  105.421354][ T3786]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[  105.421358][ T3786]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[  105.421363][ T3786]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[  105.421371][ T3786]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[  105.421373][ T3786]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  105.421375][ T3786]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  105.421379][ T3786]  console_emit_next_record (kernel/printk/printk.c:3183)
[  105.421384][ T3786]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[  105.421385][ T3786]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[  105.421389][ T3786]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  105.421390][ T3786]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  105.421394][ T3786]  console_flush_one_record (kernel/printk/printk.c:3268)
[  105.421398][ T3786]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[  105.421400][ T3786]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[  105.421406][ T3786]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[  105.421409][ T3786]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[  105.421410][ T3786]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  105.421412][ T3786]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[  105.421416][ T3786]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[  105.421418][ T3786]  ? vprintk_emit (kernel/printk/printk.c:2478)
[  105.421421][ T3786]  vprintk_emit (kernel/printk/printk.c:2479)
[  105.421424][ T3786]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[  105.421425][ T3786]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[  105.421430][ T3786]  _printk (kernel/printk/printk.c:2504)
[  105.421434][ T3786]  ? snapshot_read.cold (user.c:?)
[  105.421437][ T3786]  ? br_multicast_flood (??:?)
[  105.421441][ T3786]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[  105.421442][ T3786]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[  105.421443][ T3786]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[  105.421447][ T3786]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[  105.421452][ T3786]  br_init_port (net/bridge/br_stp_if.c:39)
[  105.421454][ T3786]  new_nbp (net/bridge/br_if.c:449)
[  105.421458][ T3786]  br_add_if (net/bridge/br_if.c:592)
[  105.421461][ T3786]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[  105.421464][ T3786]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[  105.421470][ T3786]  do_set_master (net/core/rtnetlink.c:3071)
[  105.421473][ T3786]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[  105.421476][ T3786]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[  105.421480][ T3786]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[  105.421481][ T3786]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[  105.421484][ T3786]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[  105.421488][ T3786]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[  105.421491][ T3786]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[  105.421493][ T3786]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[  105.421496][ T3786]  ? kasan_save_stack (mm/kasan/common.c:58)
[  105.421498][ T3786]  ? kasan_save_stack (mm/kasan/common.c:57)
[  105.421499][ T3786]  ? kasan_save_track (mm/kasan/common.c:78)
[  105.421500][ T3786]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[  105.421503][ T3786]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[  105.421505][ T3786]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[  105.421508][ T3786]  ? ___sys_sendmsg (net/socket.c:2758)
[  105.421512][ T3786]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[  105.421514][ T3786]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[  105.421516][ T3786]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  105.421518][ T3786]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  105.421520][ T3786]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  105.421521][ T3786]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  105.421523][ T3786]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[  105.421525][ T3786]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[  105.421528][ T3786]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[  105.421529][ T3786]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[  105.421533][ T3786]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[  105.421534][ T3786]  ? nla_get_range_signed (lib/nlattr.c:270)
[  105.421539][ T3786]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  105.421541][ T3786]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[  105.421547][ T3786]  rtnl_newlink (net/core/rtnetlink.c:4215)
[  105.421552][ T3786]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[  105.421554][ T3786]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[  105.421558][ T3786]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[  105.421560][ T3786]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[  105.421562][ T3786]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[  105.421564][ T3786]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[  105.421568][ T3786]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[  105.421570][ T3786]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[  105.421573][ T3786]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[  105.421574][ T3786]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[  105.421579][ T3786]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[  105.421581][ T3786]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[  105.421584][ T3786]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[  105.421587][ T3786]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[  105.421590][ T3786]  ? netlink_ack (./include/linux/skbuff.h:2718)
[  105.421597][ T3786]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[  105.421599][ T3786]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[  105.421603][ T3786]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[  105.421607][ T3786]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[  105.421610][ T3786]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[  105.421614][ T3786]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[  105.421618][ T3786]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[  105.421622][ T3786]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[  105.421624][ T3786]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[  105.421629][ T3786]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[  105.421632][ T3786]  ____sys_sendmsg (net/socket.c:2713)
[  105.421634][ T3786]  ? copy_msghdr_from_user (net/socket.c:2650)
[  105.421636][ T3786]  ? sock_write_iter (net/socket.c:1269)
[  105.421638][ T3786]  ? move_addr_to_kernel (net/socket.c:258)
[  105.421645][ T3786]  ___sys_sendmsg (net/socket.c:2767)
[  105.421648][ T3786]  ? copy_msghdr_from_user (net/socket.c:2619)
[  105.421669][ T3786]  __sys_sendmsg (net/socket.c:2799)
[  105.421671][ T3786]  ? __sys_sendmsg_sock (net/socket.c:2780)
[  105.421677][ T3786]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  105.421681][ T3786]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[  105.421684][ T3786]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[  105.421687][ T3786]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[  105.421689][ T3786] RIP: 0033:0x7fbfefc4754e
[  105.421693][ T3786] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[  105.421695][ T3786] RSP: 002b:00007ffc225eaa00 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[  105.421697][ T3786] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fbfefc4754e
[  105.421699][ T3786] RDX: 0000000000000000 RSI: 00007ffc225eaab0 RDI: 0000000000000005
[  105.421699][ T3786] RBP: 00007ffc225eaa10 R08: 0000000000000000 R09: 0000000000000000
[  105.421700][ T3786] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a911810


Finger prints:
do_softirq:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars
__alloc_skb:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars
netif_change_name:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars
__irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print
__irq_exit_rcu:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars
inet6_fill_ifla6_attrs:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars