======================================
| [   10.753333][  T215] softirqs last disabled at (20603): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   10.753335][  T215] Preemption disabled at:
| [   10.753336][  T215] 0x0
| [   10.753346][  T215] Tainted: [W]=WARN
[   10.753347][  T215] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.753348][  T215] Call Trace:
[   10.753350][  T215]  <TASK>
[   10.753352][  T215]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   10.753358][  T215]  __might_resched.cold (kernel/sched/core.c:9234)
[   10.753362][  T215]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   10.753366][  T215]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   10.753371][  T215]  __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))
[   10.753372][  T215]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.753379][  T215]  ? 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)
[   10.753382][  T215]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.753386][  T215]  put_chars (drivers/char/virtio_console.c:1176)
[   10.753388][  T215]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   10.753389][  T215]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   10.753393][  T215]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   10.753398][  T215]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   10.753406][  T215]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   10.753408][  T215]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.753410][  T215]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.753414][  T215]  console_emit_next_record (kernel/printk/printk.c:3183)
[   10.753418][  T215]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   10.753420][  T215]  ? 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))
[   10.753423][  T215]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.753425][  T215]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.753428][  T215]  console_flush_one_record (kernel/printk/printk.c:3268)
[   10.753432][  T215]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   10.753434][  T215]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.753439][  T215]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   10.753442][  T215]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   10.753444][  T215]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.753446][  T215]  ? 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)
[   10.753449][  T215]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   10.753451][  T215]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   10.753454][  T215]  vprintk_emit (kernel/printk/printk.c:2479)
[   10.753457][  T215]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   10.753459][  T215]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.753463][  T215]  _printk (kernel/printk/printk.c:2504)
[   10.753474][  T215]  ? snapshot_read.cold (user.c:?)
[   10.753477][  T215]  ? 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)
[   10.753479][  T215]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   10.753483][  T215]  ? 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)
[   10.753486][  T215]  do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4))
[   10.753489][  T215]  ? exit_notify (kernel/exit.c:780)
[   10.753491][  T215]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   10.753493][  T215]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.753497][  T215]  do_group_exit (kernel/exit.c:1151)
[   10.753500][  T215]  __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160)
[   10.753502][  T215]  x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232)
[   10.753504][  T215]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   10.753508][  T215]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   10.753511][  T215]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   10.753513][  T215] RIP: 0033:0x7faedcb991b8
[   10.753515][  T215] Code: Unable to access opcode bytes at 0x7faedcb9918e.

Code starting with the faulting instruction
===========================================
[   10.753517][  T215] RSP: 002b:00007fffc89f0f68 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
[   10.753519][  T215] RAX: ffffffffffffffda RBX: 00007faedccc9f88 RCX: 00007faedcb991b8
[   10.753520][  T215] RDX: 00007faedc8e3fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000
[   10.753521][  T215] RBP: 00007fffc89f0fc0 R08: 0000000000000000 R09: 0000000000000050
[   10.753522][  T215] R10: 00007fffc89f0d80 R11: 0000000000000246 R12: 0000000000000001
[   10.753523][  T215] R13: 0000000000000000 R14: 00007faedccc8680 R15: 00007faedccc9fa0
| [   11.907255][  T243] softirqs last disabled at (35335): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   11.907257][  T243] Preemption disabled at:
| [   11.907258][  T243] 0x0
| [   11.907269][  T243] Tainted: [W]=WARN
[   11.907270][  T243] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.907272][  T243] Call Trace:
[   11.907274][  T243]  <TASK>
[   11.907275][  T243]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   11.907282][  T243]  __might_resched.cold (kernel/sched/core.c:9234)
[   11.907286][  T243]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   11.907291][  T243]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   11.907295][  T243]  __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))
[   11.907297][  T243]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.907304][  T243]  ? 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)
[   11.907307][  T243]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.907311][  T243]  put_chars (drivers/char/virtio_console.c:1176)
[   11.907313][  T243]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   11.907314][  T243]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   11.907318][  T243]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   11.907324][  T243]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   11.907332][  T243]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   11.907334][  T243]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.907336][  T243]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.907341][  T243]  console_emit_next_record (kernel/printk/printk.c:3183)
[   11.907345][  T243]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   11.907347][  T243]  ? 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))
[   11.907350][  T243]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.907352][  T243]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.907356][  T243]  console_flush_one_record (kernel/printk/printk.c:3268)
[   11.907360][  T243]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   11.907362][  T243]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.907368][  T243]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   11.907371][  T243]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   11.907373][  T243]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.907374][  T243]  ? 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)
[   11.907379][  T243]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   11.907381][  T243]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   11.907384][  T243]  vprintk_emit (kernel/printk/printk.c:2479)
[   11.907387][  T243]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   11.907390][  T243]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.907395][  T243]  _printk (kernel/printk/printk.c:2504)
[   11.907399][  T243]  ? snapshot_read.cold (user.c:?)
[   11.907402][  T243]  ? 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)
[   11.907405][  T243]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   11.907408][  T243]  ? 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)
[   11.907411][  T243]  do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4))
[   11.907415][  T243]  ? exit_notify (kernel/exit.c:780)
[   11.907416][  T243]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   11.907419][  T243]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.907423][  T243]  do_group_exit (kernel/exit.c:1151)
[   11.907426][  T243]  __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160)
[   11.907428][  T243]  x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232)
[   11.907430][  T243]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   11.907435][  T243]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   11.907438][  T243]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   11.907440][  T243] RIP: 0033:0x7f3e6b6b11b8
[   11.907443][  T243] Code: Unable to access opcode bytes at 0x7f3e6b6b118e.

Code starting with the faulting instruction
===========================================
[   11.907444][  T243] RSP: 002b:00007ffcbee7e978 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
[   11.907446][  T243] RAX: ffffffffffffffda RBX: 00007f3e6b7e1f88 RCX: 00007f3e6b6b11b8
[   11.907448][  T243] RDX: 00007f3e6b3fbfc8 RSI: fffffffffffffeb8 RDI: 0000000000000000
[   11.907449][  T243] RBP: 00007ffcbee7e9d0 R08: 0000000000000000 R09: 0000000000008010
[   11.907450][  T243] R10: 00007ffcbee7e790 R11: 0000000000000246 R12: 0000000000000001
[   11.907451][  T243] R13: 0000000000000000 R14: 00007f3e6b7e0680 R15: 00007f3e6b7e1fa0
| [   14.398726][  T292] softirqs last disabled at (47519): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   14.398728][  T292] Preemption disabled at:
| [   14.398729][  T292] vprintk_emit (kernel/printk/printk.c:2471)
| [   14.398737][  T292] Tainted: [W]=WARN
[   14.398738][  T292] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   14.398740][  T292] Call Trace:
[   14.398742][  T292]  <TASK>
[   14.398743][  T292]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   14.398749][  T292]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   14.398751][  T292]  __might_resched.cold (kernel/sched/core.c:9234)
[   14.398755][  T292]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   14.398759][  T292]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   14.398763][  T292]  __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))
[   14.398765][  T292]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   14.398771][  T292]  ? 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)
[   14.398774][  T292]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   14.398778][  T292]  put_chars (drivers/char/virtio_console.c:1176)
[   14.398780][  T292]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   14.398781][  T292]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   14.398788][  T292]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   14.398794][  T292]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   14.398801][  T292]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   14.398804][  T292]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.398806][  T292]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   14.398810][  T292]  console_emit_next_record (kernel/printk/printk.c:3183)
[   14.398814][  T292]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   14.398816][  T292]  ? 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))
[   14.398819][  T292]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.398821][  T292]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   14.398825][  T292]  console_flush_one_record (kernel/printk/printk.c:3268)
[   14.398829][  T292]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   14.398831][  T292]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   14.398836][  T292]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   14.398839][  T292]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   14.398841][  T292]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.398842][  T292]  ? 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)
[   14.398846][  T292]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   14.398848][  T292]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   14.398850][  T292]  vprintk_emit (kernel/printk/printk.c:2479)
[   14.398853][  T292]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   14.398855][  T292]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   14.398857][  T292]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   14.398861][  T292]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   14.398864][  T292]  _printk (kernel/printk/printk.c:2504)
[   14.398868][  T292]  ? snapshot_read.cold (user.c:?)
[   14.398872][  T292]  ? br_multicast_flood (??:?)
[   14.398875][  T292]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   14.398876][  T292]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   14.398878][  T292]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   14.398882][  T292]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   14.398886][  T292]  br_init_port (net/bridge/br_stp_if.c:39)
[   14.398888][  T292]  new_nbp (net/bridge/br_if.c:449)
[   14.398892][  T292]  br_add_if (net/bridge/br_if.c:592)
[   14.398894][  T292]  ? sync_rcu_exp_select_cpus (./include/linux/list.h:54 (discriminator 2))
[   14.398896][  T292]  ? __netdev_upper_dev_unlink (net/core/dev.c:9096)
[   14.398900][  T292]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   14.398903][  T292]  ? cycle_netdev (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 ./include/linux/netdevice.h:4084 drivers/net/vrf.c:998)
[   14.398908][  T292]  ? vrf_del_slave (drivers/net/vrf.c:1068 drivers/net/vrf.c:1075)
[   14.398910][  T292]  do_set_master (net/core/rtnetlink.c:3071)
[   14.398913][  T292]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   14.398916][  T292]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   14.398920][  T292]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   14.398921][  T292]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   14.398924][  T292]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   14.398927][  T292]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   14.398929][  T292]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   14.398931][  T292]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   14.398933][  T292]  ? kasan_save_stack (mm/kasan/common.c:58)
[   14.398935][  T292]  ? kasan_save_stack (mm/kasan/common.c:57)
[   14.398936][  T292]  ? kasan_save_track (mm/kasan/common.c:78)
[   14.398938][  T292]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   14.398940][  T292]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   14.398942][  T292]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   14.398945][  T292]  ? ___sys_sendmsg (net/socket.c:2758)
[   14.398949][  T292]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   14.398951][  T292]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   14.398953][  T292]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.398955][  T292]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   14.398956][  T292]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.398958][  T292]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.398959][  T292]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   14.398961][  T292]  ? __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)
[   14.398963][  T292]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   14.398964][  T292]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   14.398968][  T292]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   14.398969][  T292]  ? nla_get_range_signed (lib/nlattr.c:270)
[   14.398974][  T292]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.398976][  T292]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   14.398981][  T292]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   14.398986][  T292]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   14.398988][  T292]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   14.398992][  T292]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   14.398994][  T292]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   14.398997][  T292]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   14.398998][  T292]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   14.399002][  T292]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   14.399004][  T292]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   14.399007][  T292]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   14.399008][  T292]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   14.399013][  T292]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   14.399014][  T292]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   14.399018][  T292]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   14.399021][  T292]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   14.399024][  T292]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   14.399030][  T292]  ? 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))
[   14.399032][  T292]  ? 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))
[   14.399036][  T292]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   14.399040][  T292]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   14.399043][  T292]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   14.399047][  T292]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   14.399051][  T292]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   14.399055][  T292]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   14.399056][  T292]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   14.399061][  T292]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   14.399064][  T292]  ____sys_sendmsg (net/socket.c:2713)
[   14.399066][  T292]  ? copy_msghdr_from_user (net/socket.c:2650)
[   14.399069][  T292]  ? sock_write_iter (net/socket.c:1269)
[   14.399070][  T292]  ? move_addr_to_kernel (net/socket.c:258)
[   14.399077][  T292]  ___sys_sendmsg (net/socket.c:2767)
[   14.399080][  T292]  ? copy_msghdr_from_user (net/socket.c:2619)
[   14.399095][  T292]  __sys_sendmsg (net/socket.c:2799)
[   14.399098][  T292]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   14.399104][  T292]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   14.399107][  T292]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   14.399110][  T292]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   14.399113][  T292]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   14.399116][  T292] RIP: 0033:0x7f53a248a54e
[   14.399119][  T292] 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
[   14.399121][  T292] RSP: 002b:00007ffeb44e6b70 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   14.399123][  T292] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f53a248a54e
[   14.399125][  T292] RDX: 0000000000000000 RSI: 00007ffeb44e6c20 RDI: 0000000000000005
[   14.399126][  T292] RBP: 00007ffeb44e6b80 R08: 0000000000000000 R09: 0000000000000000
[   14.399126][  T292] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a915d13
[   14.399127][  T292] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffeb44e72e0
| [   21.507772][  T340] softirqs last disabled at (41248): br_stp_disable_bridge (./include/linux/spinlock.h:353 net/bridge/br_stp_if.c:73)
| [   21.507775][  T340] Preemption disabled at:
| [   21.507776][  T340] 0x0
| [   21.507792][  T340] Tainted: [W]=WARN
[   21.507793][  T340] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   21.507796][  T340] Call Trace:
[   21.507798][  T340]  <TASK>
[   21.507801][  T340]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   21.507809][  T340]  __might_resched.cold (kernel/sched/core.c:9234)
[   21.507815][  T340]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   21.507821][  T340]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   21.507828][  T340]  __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))
[   21.507831][  T340]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   21.507841][  T340]  ? 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)
[   21.507844][  T340]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   21.507850][  T340]  put_chars (drivers/char/virtio_console.c:1176)
[   21.507853][  T340]  ? prb_final_commit (kernel/printk/printk_ringbuffer.c:1842)
[   21.507856][  T340]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   21.507861][  T340]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   21.507866][  T340]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   21.507870][  T340]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   21.507876][  T340]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   21.507882][  T340]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   21.507885][  T340]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   21.507887][  T340]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   21.507894][  T340]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   21.507898][  T340]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   21.507904][  T340]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.507907][  T340]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   21.507914][  T340]  console_emit_next_record (kernel/printk/printk.c:3183)
[   21.507921][  T340]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   21.507923][  T340]  ? 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))
[   21.507928][  T340]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.507931][  T340]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   21.507938][  T340]  console_flush_one_record (kernel/printk/printk.c:3268)
[   21.507945][  T340]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   21.507948][  T340]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   21.507958][  T340]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   21.507962][  T340]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   21.507965][  T340]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.507968][  T340]  ? 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)
[   21.507974][  T340]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   21.507977][  T340]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   21.507982][  T340]  vprintk_emit (kernel/printk/printk.c:2479)
[   21.507987][  T340]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   21.507992][  T340]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   21.507995][  T340]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   21.508001][  T340]  _printk (kernel/printk/printk.c:2504)
[   21.508006][  T340]  ? snapshot_read.cold (user.c:?)
[   21.508019][  T340]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   21.508027][  T340]  br_stp_disable_port (net/bridge/br_stp_if.c:106)
[   21.508032][  T340]  br_stp_disable_bridge (net/bridge/br_stp_if.c:76)
[   21.508036][  T340]  br_dev_stop (net/bridge/br_device.c:193)
[   21.508041][  T340]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[   21.508044][  T340]  __dev_close_many (net/core/dev.c:1798)
[   21.508051][  T340]  ? netif_open (net/core/dev.c:1755)
[   21.508054][  T340]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   21.508058][  T340]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   21.508065][  T340]  __dev_change_flags (net/core/dev.c:1811 net/core/dev.c:9810)
[   21.508071][  T340]  ? netif_set_allmulti (./include/net/netdev_lock.h:33)
[   21.508076][  T340]  ? synchronize_rcu_normal (kernel/rcu/tree.c:3360)
[   21.508084][  T340]  netif_change_flags (net/core/dev.c:9877)
[   21.508090][  T340]  dev_change_flags (net/core/dev_api.c:68)
[   21.508093][  T340]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   21.508099][  T340]  cycle_netdev (drivers/net/vrf.c:1001)
[   21.508105][  T340]  vrf_del_slave (drivers/net/vrf.c:1068 drivers/net/vrf.c:1075)
[   21.508109][  T340]  do_set_master (net/core/rtnetlink.c:3055)
[   21.508115][  T340]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   21.508121][  T340]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   21.508126][  T340]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   21.508128][  T340]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   21.508131][  T340]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   21.508136][  T340]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   21.508140][  T340]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   21.508142][  T340]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   21.508146][  T340]  ? kasan_save_stack (mm/kasan/common.c:58)
[   21.508150][  T340]  ? kasan_save_stack (mm/kasan/common.c:57)
[   21.508152][  T340]  ? kasan_save_track (mm/kasan/common.c:78)
[   21.508154][  T340]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   21.508158][  T340]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   21.508161][  T340]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   21.508165][  T340]  ? ___sys_sendmsg (net/socket.c:2758)
[   21.508171][  T340]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   21.508174][  T340]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   21.508179][  T340]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.508182][  T340]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   21.508185][  T340]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.508187][  T340]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.508190][  T340]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   21.508194][  T340]  ? __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)
[   21.508197][  T340]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   21.508200][  T340]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   21.508206][  T340]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   21.508208][  T340]  ? nla_get_range_signed (lib/nlattr.c:270)
[   21.508216][  T340]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.508220][  T340]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   21.508230][  T340]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   21.508240][  T340]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   21.508243][  T340]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   21.508251][  T340]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   21.508254][  T340]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   21.508258][  T340]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   21.508261][  T340]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   21.508267][  T340]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   21.508271][  T340]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   21.508276][  T340]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   21.508279][  T340]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   21.508287][  T340]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   21.508290][  T340]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   21.508296][  T340]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   21.508300][  T340]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   21.508305][  T340]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   21.508317][  T340]  ? 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))
[   21.508319][  T340]  ? 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))
[   21.508327][  T340]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   21.508334][  T340]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   21.508338][  T340]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   21.508346][  T340]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   21.508353][  T340]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   21.508360][  T340]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   21.508362][  T340]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   21.508370][  T340]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   21.508375][  T340]  ____sys_sendmsg (net/socket.c:2713)
[   21.508379][  T340]  ? copy_msghdr_from_user (net/socket.c:2650)
[   21.508383][  T340]  ? sock_write_iter (net/socket.c:1269)
[   21.508385][  T340]  ? move_addr_to_kernel (net/socket.c:258)
[   21.508398][  T340]  ___sys_sendmsg (net/socket.c:2767)
[   21.508403][  T340]  ? copy_msghdr_from_user (net/socket.c:2619)
[   21.508433][  T340]  __sys_sendmsg (net/socket.c:2799)
[   21.508438][  T340]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   21.508449][  T340]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.508454][  T340]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   21.508458][  T340]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   21.508463][  T340]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   21.508466][  T340] RIP: 0033:0x7f83ea76b54e
[   21.508469][  T340] 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
[   21.508472][  T340] RSP: 002b:00007ffc1348d0f0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   21.508476][  T340] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f83ea76b54e
[   21.508478][  T340] RDX: 0000000000000000 RSI: 00007ffc1348d1a0 RDI: 0000000000000005
[   21.508479][  T340] RBP: 00007ffc1348d100 R08: 0000000000000000 R09: 0000000000000000
[   21.508481][  T340] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a915d1a
[   21.508482][  T340] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffc1348d860
| [   24.708604][  T398] softirqs last disabled at (39056): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   24.708607][  T398] Preemption disabled at:
| [   24.708608][  T398] vprintk_emit (kernel/printk/printk.c:2471)
| [   24.708617][  T398] Tainted: [W]=WARN
[   24.708618][  T398] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   24.708619][  T398] Call Trace:
[   24.708621][  T398]  <TASK>
[   24.708623][  T398]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   24.708629][  T398]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   24.708631][  T398]  __might_resched.cold (kernel/sched/core.c:9234)
[   24.708635][  T398]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   24.708640][  T398]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   24.708644][  T398]  __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))
[   24.708646][  T398]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   24.708653][  T398]  ? 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)
[   24.708656][  T398]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   24.708660][  T398]  put_chars (drivers/char/virtio_console.c:1176)
[   24.708663][  T398]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   24.708669][  T398]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   24.708677][  T398]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   24.708681][  T398]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   24.708685][  T398]  console_emit_next_record (kernel/printk/printk.c:3183)
[   24.708690][  T398]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   24.708692][  T398]  ? 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))
[   24.708695][  T398]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.708698][  T398]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   24.708702][  T398]  console_flush_one_record (kernel/printk/printk.c:3268)
[   24.708707][  T398]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   24.708709][  T398]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   24.708714][  T398]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   24.708717][  T398]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   24.708719][  T398]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.708721][  T398]  ? 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)
[   24.708725][  T398]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   24.708727][  T398]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   24.708730][  T398]  vprintk_emit (kernel/printk/printk.c:2479)
[   24.708733][  T398]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   24.708734][  T398]  ? netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   24.708738][  T398]  ? netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   24.708739][  T398]  ? __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   24.708742][  T398]  ? ____sys_sendmsg (net/socket.c:2713)
[   24.708744][  T398]  ? ___sys_sendmsg (net/socket.c:2767)
[   24.708745][  T398]  ? __sys_sendmsg (net/socket.c:2799)
[   24.708747][  T398]  ? do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   24.708753][  T398]  _printk (kernel/printk/printk.c:2504)
[   24.708757][  T398]  ? snapshot_read.cold (user.c:?)
[   24.708762][  T398]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   24.708765][  T398]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   24.708769][  T398]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   24.708772][  T398]  ? netdev_notice (net/core/dev.c:13194)
[   24.708777][  T398]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.708779][  T398]  ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1))
[   24.708781][  T398]  ? down_write_nested (kernel/locking/rwsem.c:1759)
[   24.708786][  T398]  ? 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)
[   24.708789][  T398]  netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3))
[   24.708793][  T398]  dev_set_allmulti (net/core/dev_api.c:315)
[   24.708797][  T398]  del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341)
[   24.708800][  T398]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   24.708806][  T398]  br_dev_delete (net/bridge/br_if.c:387)
[   24.708810][  T398]  rtnl_dellink (net/core/rtnetlink.c:3651 net/core/rtnetlink.c:3694)
[   24.708811][  T398]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   24.708813][  T398]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   24.708815][  T398]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   24.708817][  T398]  ? rtnl_link_get_net_capable.constprop.0 (net/core/rtnetlink.c:2728)
[   24.708839][  T398]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   24.708841][  T398]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   24.708844][  T398]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   24.708846][  T398]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   24.708849][  T398]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   24.708853][  T398]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   24.708855][  T398]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   24.708857][  T398]  ? rtnl_link_get_net_capable.constprop.0 (net/core/rtnetlink.c:2728)
[   24.708859][  T398]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   24.708863][  T398]  ? rtnl_link_get_net_capable.constprop.0 (net/core/rtnetlink.c:2728)
[   24.708865][  T398]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   24.708868][  T398]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   24.708870][  T398]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   24.708874][  T398]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   24.708876][  T398]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   24.708880][  T398]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   24.708882][  T398]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   24.708885][  T398]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   24.708891][  T398]  ? 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))
[   24.708894][  T398]  ? 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))
[   24.708898][  T398]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   24.708902][  T398]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   24.708905][  T398]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   24.708909][  T398]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   24.708913][  T398]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   24.708917][  T398]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   24.708919][  T398]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   24.708924][  T398]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   24.708927][  T398]  ____sys_sendmsg (net/socket.c:2713)
[   24.708929][  T398]  ? copy_msghdr_from_user (net/socket.c:2650)
[   24.708932][  T398]  ? sock_write_iter (net/socket.c:1269)
[   24.708934][  T398]  ? move_addr_to_kernel (net/socket.c:258)
[   24.708941][  T398]  ___sys_sendmsg (net/socket.c:2767)
[   24.708944][  T398]  ? copy_msghdr_from_user (net/socket.c:2619)
[   24.708960][  T398]  __sys_sendmsg (net/socket.c:2799)
[   24.708963][  T398]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   24.708969][  T398]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.708972][  T398]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   24.708974][  T398]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   24.708977][  T398]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   24.708980][  T398] RIP: 0033:0x7f3f8a25354e
[   24.708984][  T398] 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
[   24.708986][  T398] RSP: 002b:00007ffedd4a4ff0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   24.708988][  T398] RAX: ffffffffffffffda RBX: 0000000000000001 RCX: 00007f3f8a25354e
[   24.708990][  T398] RDX: 0000000000000000 RSI: 00007ffedd4a50a0 RDI: 0000000000000005
[   24.708990][  T398] RBP: 00007ffedd4a5000 R08: 0000000000000000 R09: 0000000000000000
[   24.708991][  T398] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a915d1d
[   24.708992][  T398] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffedd4a5760
| [   27.525652][  T488] softirqs last disabled at (19248): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   27.525655][  T488] Preemption disabled at:
| [   27.525655][  T488] vprintk_emit (kernel/printk/printk.c:2471)
| [   27.525664][  T488] Tainted: [W]=WARN
[   27.525665][  T488] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   27.525667][  T488] Call Trace:
[   27.525668][  T488]  <TASK>
[   27.525670][  T488]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   27.525675][  T488]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   27.525677][  T488]  __might_resched.cold (kernel/sched/core.c:9234)
[   27.525682][  T488]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   27.525686][  T488]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   27.525690][  T488]  __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))
[   27.525692][  T488]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   27.525699][  T488]  ? 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)
[   27.525702][  T488]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   27.525706][  T488]  put_chars (drivers/char/virtio_console.c:1176)
[   27.525708][  T488]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   27.525714][  T488]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   27.525722][  T488]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   27.525726][  T488]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   27.525731][  T488]  console_emit_next_record (kernel/printk/printk.c:3183)
[   27.525735][  T488]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   27.525737][  T488]  ? 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))
[   27.525740][  T488]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.525743][  T488]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   27.525747][  T488]  console_flush_one_record (kernel/printk/printk.c:3268)
[   27.525751][  T488]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   27.525753][  T488]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   27.525759][  T488]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   27.525762][  T488]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   27.525764][  T488]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.525766][  T488]  ? 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)
[   27.525769][  T488]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   27.525771][  T488]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   27.525774][  T488]  vprintk_emit (kernel/printk/printk.c:2479)
[   27.525778][  T488]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   27.525781][  T488]  ? _mutex_trylock_nest_lock (kernel/locking/mutex.c:1227 (discriminator 6))
[   27.525789][  T488]  _printk (kernel/printk/printk.c:2504)
[   27.525793][  T488]  ? snapshot_read.cold (user.c:?)
[   27.525795][  T488]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   27.525798][  T488]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   27.525801][  T488]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   27.525803][  T488]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   27.525806][  T488]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   27.525809][  T488]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   27.525812][  T488]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   27.525815][  T488]  ? netdev_notice (net/core/dev.c:13194)
[   27.525818][  T488]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   27.525821][  T488]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   27.525824][  T488]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   27.525827][  T488]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   27.525829][  T488]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   27.525831][  T488]  ? register_netdev (net/core/dev.c:11618)
[   27.525833][  T488]  ? 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))
[   27.525838][  T488]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   27.525841][  T488]  ? __kernel_text_address (kernel/extable.c:79)
[   27.525844][  T488]  ? write_profile (profile.c:?)
[   27.525848][  T488]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   27.525854][  T488]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   27.525857][  T488]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   27.525859][  T488]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   27.525860][  T488]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   27.525863][  T488]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   27.525866][  T488]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   27.525868][  T488]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   27.525870][  T488]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   27.525873][  T488]  ? kasan_save_stack (mm/kasan/common.c:58)
[   27.525875][  T488]  ? kasan_save_stack (mm/kasan/common.c:57)
[   27.525876][  T488]  ? kasan_save_track (mm/kasan/common.c:78)
[   27.525877][  T488]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   27.525880][  T488]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   27.525881][  T488]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   27.525884][  T488]  ? ___sys_sendmsg (net/socket.c:2758)
[   27.525888][  T488]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   27.525890][  T488]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   27.525893][  T488]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.525895][  T488]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   27.525897][  T488]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.525898][  T488]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.525900][  T488]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   27.525902][  T488]  ? __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)
[   27.525903][  T488]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   27.525905][  T488]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   27.525908][  T488]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   27.525910][  T488]  ? nla_get_range_signed (lib/nlattr.c:270)
[   27.525914][  T488]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.525917][  T488]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   27.525923][  T488]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   27.525929][  T488]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   27.525930][  T488]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   27.525935][  T488]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   27.525937][  T488]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   27.525939][  T488]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   27.525940][  T488]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   27.525944][  T488]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   27.525947][  T488]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   27.525950][  T488]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   27.525951][  T488]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   27.525956][  T488]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   27.525958][  T488]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   27.525962][  T488]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   27.525965][  T488]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   27.525968][  T488]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   27.525975][  T488]  ? 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))
[   27.525977][  T488]  ? 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))
[   27.525982][  T488]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   27.525986][  T488]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   27.525988][  T488]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   27.525992][  T488]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   27.525997][  T488]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   27.526001][  T488]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   27.526003][  T488]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   27.526008][  T488]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   27.526011][  T488]  ____sys_sendmsg (net/socket.c:2713)
[   27.526013][  T488]  ? copy_msghdr_from_user (net/socket.c:2650)
[   27.526015][  T488]  ? sock_write_iter (net/socket.c:1269)
[   27.526017][  T488]  ? move_addr_to_kernel (net/socket.c:258)
[   27.526025][  T488]  ___sys_sendmsg (net/socket.c:2767)
[   27.526028][  T488]  ? copy_msghdr_from_user (net/socket.c:2619)
[   27.526044][  T488]  __sys_sendmsg (net/socket.c:2799)
[   27.526047][  T488]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   27.526054][  T488]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.526057][  T488]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   27.526060][  T488]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   27.526063][  T488]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   27.526065][  T488] RIP: 0033:0x7f0b37d6b54e
[   27.526069][  T488] 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
[   27.526071][  T488] RSP: 002b:00007ffdd6bbbf70 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   27.526073][  T488] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007f0b37d6b54e
[   27.526075][  T488] RDX: 0000000000000000 RSI: 00007ffdd6bbc020 RDI: 0000000000000005
[   27.526076][  T488] RBP: 00007ffdd6bbbf80 R08: 0000000000000000 R09: 0000000000000000
[   27.526077][  T488] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a915d20
[   27.526077][  T488] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffdd6bbc6f0
| [   36.672758][  T679] softirqs last disabled at (26876): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   36.672761][  T679] Preemption disabled at:
| [   36.672762][  T679] vprintk_emit (kernel/printk/printk.c:2471)
| [   36.672770][  T679] Tainted: [W]=WARN
[   36.672771][  T679] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   36.672773][  T679] Call Trace:
[   36.672775][  T679]  <TASK>
[   36.672776][  T679]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   36.672782][  T679]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   36.672786][  T679]  __might_resched.cold (kernel/sched/core.c:9234)
[   36.672791][  T679]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   36.672795][  T679]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   36.672799][  T679]  __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))
[   36.672801][  T679]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   36.672807][  T679]  ? 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)
[   36.672810][  T679]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   36.672814][  T679]  put_chars (drivers/char/virtio_console.c:1176)
[   36.672816][  T679]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   36.672822][  T679]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   36.672830][  T679]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   36.672833][  T679]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   36.672837][  T679]  console_emit_next_record (kernel/printk/printk.c:3183)
[   36.672841][  T679]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   36.672843][  T679]  ? 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))
[   36.672846][  T679]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   36.672849][  T679]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   36.672853][  T679]  console_flush_one_record (kernel/printk/printk.c:3268)
[   36.672857][  T679]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   36.672859][  T679]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   36.672864][  T679]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   36.672867][  T679]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   36.672868][  T679]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   36.672870][  T679]  ? 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)
[   36.672874][  T679]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   36.672875][  T679]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   36.672878][  T679]  vprintk_emit (kernel/printk/printk.c:2479)
[   36.672881][  T679]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   36.672884][  T679]  ? _mutex_trylock_nest_lock (kernel/locking/mutex.c:1227 (discriminator 6))
[   36.672889][  T679]  _printk (kernel/printk/printk.c:2504)
[   36.672893][  T679]  ? snapshot_read.cold (user.c:?)
[   36.672894][  T679]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   36.672897][  T679]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   36.672900][  T679]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   36.672902][  T679]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   36.672906][  T679]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   36.672908][  T679]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   36.672910][  T679]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   36.672913][  T679]  ? netdev_notice (net/core/dev.c:13194)
[   36.672916][  T679]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   36.672919][  T679]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   36.672921][  T679]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   36.672925][  T679]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   36.672927][  T679]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   36.672929][  T679]  ? register_netdev (net/core/dev.c:11618)
[   36.672930][  T679]  ? 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))
[   36.672935][  T679]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   36.672938][  T679]  ? __kernel_text_address (kernel/extable.c:79)
[   36.672940][  T679]  ? write_profile (profile.c:?)
[   36.672944][  T679]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   36.672950][  T679]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   36.672953][  T679]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   36.672955][  T679]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   36.672956][  T679]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   36.672958][  T679]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   36.672961][  T679]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   36.672963][  T679]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   36.672965][  T679]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   36.672967][  T679]  ? kasan_save_stack (mm/kasan/common.c:58)
[   36.672969][  T679]  ? kasan_save_stack (mm/kasan/common.c:57)
[   36.672970][  T679]  ? kasan_save_track (mm/kasan/common.c:78)
[   36.672972][  T679]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   36.672974][  T679]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   36.672976][  T679]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   36.672979][  T679]  ? ___sys_sendmsg (net/socket.c:2758)
[   36.672983][  T679]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   36.672985][  T679]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   36.672987][  T679]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   36.672989][  T679]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   36.672991][  T679]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   36.672992][  T679]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   36.672993][  T679]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   36.672995][  T679]  ? __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)
[   36.672997][  T679]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   36.672998][  T679]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   36.673002][  T679]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   36.673003][  T679]  ? nla_get_range_signed (lib/nlattr.c:270)
[   36.673008][  T679]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   36.673010][  T679]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   36.673015][  T679]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   36.673020][  T679]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   36.673022][  T679]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   36.673026][  T679]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   36.673028][  T679]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   36.673030][  T679]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   36.673032][  T679]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   36.673036][  T679]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   36.673038][  T679]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   36.673041][  T679]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   36.673042][  T679]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   36.673046][  T679]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   36.673048][  T679]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   36.673052][  T679]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   36.673055][  T679]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   36.673058][  T679]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   36.673064][  T679]  ? 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))
[   36.673067][  T679]  ? 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))
[   36.673071][  T679]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   36.673075][  T679]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   36.673077][  T679]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   36.673081][  T679]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   36.673085][  T679]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   36.673089][  T679]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   36.673091][  T679]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   36.673096][  T679]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   36.673099][  T679]  ____sys_sendmsg (net/socket.c:2713)
[   36.673101][  T679]  ? copy_msghdr_from_user (net/socket.c:2650)
[   36.673103][  T679]  ? sock_write_iter (net/socket.c:1269)
[   36.673105][  T679]  ? move_addr_to_kernel (net/socket.c:258)
[   36.673112][  T679]  ___sys_sendmsg (net/socket.c:2767)
[   36.673115][  T679]  ? copy_msghdr_from_user (net/socket.c:2619)
[   36.673130][  T679]  __sys_sendmsg (net/socket.c:2799)
[   36.673133][  T679]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   36.673139][  T679]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   36.673142][  T679]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   36.673145][  T679]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   36.673148][  T679]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   36.673151][  T679] RIP: 0033:0x7f48118e154e
[   36.673155][  T679] 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
[   36.673157][  T679] RSP: 002b:00007ffc289364f0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   36.673160][  T679] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007f48118e154e
[   36.673161][  T679] RDX: 0000000000000000 RSI: 00007ffc289365a0 RDI: 0000000000000005
[   36.673162][  T679] RBP: 00007ffc28936500 R08: 0000000000000000 R09: 0000000000000000
[   36.673163][  T679] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a915d29


Finger prints:
__alloc_skb:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars
br_stp_disable_bridge:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print
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