======================================
| [   10.619402][  T211] softirqs last disabled at (24760): netlink_release (./include/net/sock.h:2138 net/netlink/af_netlink.c:727)
| [   10.619405][  T211] Preemption disabled at:
| [   10.619406][  T211] 0x0
| [   10.619417][  T211] Tainted: [W]=WARN
[   10.619418][  T211] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.619419][  T211] Call Trace:
[   10.619421][  T211]  <TASK>
[   10.619422][  T211]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   10.619428][  T211]  __might_resched.cold (kernel/sched/core.c:9234)
[   10.619433][  T211]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   10.619437][  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)
[   10.619441][  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))
[   10.619443][  T211]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.619450][  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)
[   10.619452][  T211]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.619456][  T211]  put_chars (drivers/char/virtio_console.c:1176)
[   10.619458][  T211]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   10.619459][  T211]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   10.619463][  T211]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   10.619468][  T211]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   10.619476][  T211]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   10.619479][  T211]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.619481][  T211]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.619485][  T211]  console_emit_next_record (kernel/printk/printk.c:3183)
[   10.619489][  T211]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   10.619491][  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))
[   10.619494][  T211]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.619496][  T211]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.619499][  T211]  console_flush_one_record (kernel/printk/printk.c:3268)
[   10.619504][  T211]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   10.619505][  T211]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.619511][  T211]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   10.619513][  T211]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   10.619515][  T211]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.619517][  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)
[   10.619520][  T211]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   10.619522][  T211]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   10.619525][  T211]  vprintk_emit (kernel/printk/printk.c:2479)
[   10.619528][  T211]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   10.619531][  T211]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.619534][  T211]  _printk (kernel/printk/printk.c:2504)
[   10.619538][  T211]  ? snapshot_read.cold (user.c:?)
[   10.619541][  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)
[   10.619543][  T211]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   10.619547][  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)
[   10.619550][  T211]  do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4))
[   10.619554][  T211]  ? exit_notify (kernel/exit.c:780)
[   10.619555][  T211]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   10.619558][  T211]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.619561][  T211]  do_group_exit (kernel/exit.c:1151)
[   10.619564][  T211]  __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160)
[   10.619566][  T211]  x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232)
[   10.619568][  T211]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   10.619572][  T211]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   10.619575][  T211]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   10.619577][  T211] RIP: 0033:0x7f98469601b8
[   10.619579][  T211] Code: Unable to access opcode bytes at 0x7f984696018e.

Code starting with the faulting instruction
===========================================
[   10.619580][  T211] RSP: 002b:00007ffcc1ee0fb8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
[   10.619583][  T211] RAX: ffffffffffffffda RBX: 00007f9846a90f88 RCX: 00007f98469601b8
[   10.619584][  T211] RDX: 00007f98466aafc8 RSI: fffffffffffffeb8 RDI: 0000000000000000
[   10.619585][  T211] RBP: 00007ffcc1ee1010 R08: 0000000000000000 R09: 0000000000000050
[   10.619586][  T211] R10: 00007ffcc1ee0dd0 R11: 0000000000000246 R12: 0000000000000001
[   10.619587][  T211] R13: 0000000000000000 R14: 00007f9846a8f680 R15: 00007f9846a90fa0
| [   12.584565][  T255] softirqs last disabled at (48520): netlink_release (./include/net/sock.h:2138 net/netlink/af_netlink.c:727)
| [   12.584568][  T255] Preemption disabled at:
| [   12.584568][  T255] 0x0
| [   12.584579][  T255] Tainted: [W]=WARN
[   12.584580][  T255] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.584582][  T255] Call Trace:
[   12.584583][  T255]  <TASK>
[   12.584585][  T255]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   12.584591][  T255]  __might_resched.cold (kernel/sched/core.c:9234)
[   12.584596][  T255]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   12.584600][  T255]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   12.584604][  T255]  __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))
[   12.584606][  T255]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   12.584612][  T255]  ? 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)
[   12.584615][  T255]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   12.584619][  T255]  put_chars (drivers/char/virtio_console.c:1176)
[   12.584621][  T255]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   12.584622][  T255]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   12.584626][  T255]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   12.584631][  T255]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   12.584639][  T255]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   12.584642][  T255]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.584644][  T255]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.584648][  T255]  console_emit_next_record (kernel/printk/printk.c:3183)
[   12.584652][  T255]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   12.584654][  T255]  ? 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))
[   12.584657][  T255]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.584659][  T255]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.584662][  T255]  console_flush_one_record (kernel/printk/printk.c:3268)
[   12.584667][  T255]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   12.584669][  T255]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.584674][  T255]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   12.584677][  T255]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   12.584679][  T255]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.584680][  T255]  ? 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)
[   12.584684][  T255]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   12.584686][  T255]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   12.584688][  T255]  vprintk_emit (kernel/printk/printk.c:2479)
[   12.584692][  T255]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   12.584695][  T255]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.584698][  T255]  _printk (kernel/printk/printk.c:2504)
[   12.584702][  T255]  ? snapshot_read.cold (user.c:?)
[   12.584705][  T255]  ? 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)
[   12.584707][  T255]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   12.584711][  T255]  ? 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)
[   12.584714][  T255]  do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4))
[   12.584718][  T255]  ? exit_notify (kernel/exit.c:780)
[   12.584719][  T255]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   12.584722][  T255]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.584725][  T255]  do_group_exit (kernel/exit.c:1151)
[   12.584728][  T255]  __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160)
[   12.584730][  T255]  x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232)
[   12.584732][  T255]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   12.584736][  T255]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   12.584739][  T255]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   12.584742][  T255] RIP: 0033:0x7f82401651b8
[   12.584744][  T255] Code: Unable to access opcode bytes at 0x7f824016518e.

Code starting with the faulting instruction
===========================================
[   12.584745][  T255] RSP: 002b:00007ffcc1703de8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
[   12.584747][  T255] RAX: ffffffffffffffda RBX: 00007f8240295f88 RCX: 00007f82401651b8
[   12.584749][  T255] RDX: 00007f823feaffc8 RSI: fffffffffffffeb8 RDI: 0000000000000000
[   12.584750][  T255] RBP: 00007ffcc1703e40 R08: 0000000000000000 R09: 0000000000008010
[   12.584750][  T255] R10: 00007ffcc1703c00 R11: 0000000000000246 R12: 0000000000000001
[   12.584751][  T255] R13: 0000000000000000 R14: 00007f8240294680 R15: 00007f8240295fa0
| [   13.727198][  T275] softirqs last disabled at (40654): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   13.727201][  T275] Preemption disabled at:
| [   13.727201][  T275] vprintk_emit (kernel/printk/printk.c:2471)
| [   13.727210][  T275] Tainted: [W]=WARN
[   13.727211][  T275] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.727212][  T275] Call Trace:
[   13.727214][  T275]  <TASK>
[   13.727215][  T275]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   13.727222][  T275]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   13.727223][  T275]  __might_resched.cold (kernel/sched/core.c:9234)
[   13.727228][  T275]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   13.727232][  T275]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   13.727236][  T275]  __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))
[   13.727238][  T275]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   13.727244][  T275]  ? 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)
[   13.727247][  T275]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   13.727251][  T275]  put_chars (drivers/char/virtio_console.c:1176)
[   13.727253][  T275]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   13.727260][  T275]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   13.727268][  T275]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   13.727271][  T275]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   13.727275][  T275]  console_emit_next_record (kernel/printk/printk.c:3183)
[   13.727279][  T275]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   13.727281][  T275]  ? 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))
[   13.727284][  T275]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.727287][  T275]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   13.727291][  T275]  console_flush_one_record (kernel/printk/printk.c:3268)
[   13.727295][  T275]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   13.727297][  T275]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.727303][  T275]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   13.727306][  T275]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   13.727308][  T275]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.727309][  T275]  ? 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)
[   13.727313][  T275]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   13.727315][  T275]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   13.727318][  T275]  vprintk_emit (kernel/printk/printk.c:2479)
[   13.727321][  T275]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   13.727324][  T275]  ? _mutex_trylock_nest_lock (kernel/locking/mutex.c:1227 (discriminator 6))
[   13.727329][  T275]  _printk (kernel/printk/printk.c:2504)
[   13.727332][  T275]  ? snapshot_read.cold (user.c:?)
[   13.727334][  T275]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   13.727337][  T275]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   13.727339][  T275]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   13.727342][  T275]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   13.727345][  T275]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   13.727348][  T275]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   13.727350][  T275]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   13.727353][  T275]  ? netdev_notice (net/core/dev.c:13194)
[   13.727356][  T275]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   13.727359][  T275]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   13.727362][  T275]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   13.727365][  T275]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   13.727367][  T275]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   13.727369][  T275]  ? register_netdev (net/core/dev.c:11618)
[   13.727371][  T275]  ? 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))
[   13.727376][  T275]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   13.727379][  T275]  ? __kernel_text_address (kernel/extable.c:79)
[   13.727381][  T275]  ? write_profile (profile.c:?)
[   13.727385][  T275]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   13.727391][  T275]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   13.727395][  T275]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   13.727397][  T275]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   13.727398][  T275]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   13.727400][  T275]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   13.727403][  T275]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   13.727405][  T275]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   13.727407][  T275]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   13.727409][  T275]  ? kasan_save_stack (mm/kasan/common.c:58)
[   13.727411][  T275]  ? kasan_save_stack (mm/kasan/common.c:57)
[   13.727413][  T275]  ? kasan_save_track (mm/kasan/common.c:78)
[   13.727414][  T275]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   13.727416][  T275]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.727418][  T275]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   13.727421][  T275]  ? ___sys_sendmsg (net/socket.c:2758)
[   13.727425][  T275]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   13.727427][  T275]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   13.727429][  T275]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.727431][  T275]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   13.727433][  T275]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.727434][  T275]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.727436][  T275]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   13.727438][  T275]  ? __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)
[   13.727439][  T275]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   13.727441][  T275]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   13.727445][  T275]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   13.727446][  T275]  ? nla_get_range_signed (lib/nlattr.c:270)
[   13.727451][  T275]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.727453][  T275]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   13.727458][  T275]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   13.727464][  T275]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   13.727465][  T275]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.727470][  T275]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   13.727472][  T275]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   13.727474][  T275]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   13.727476][  T275]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   13.727479][  T275]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   13.727481][  T275]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   13.727485][  T275]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   13.727486][  T275]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.727490][  T275]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   13.727492][  T275]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   13.727496][  T275]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   13.727499][  T275]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   13.727502][  T275]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   13.727509][  T275]  ? 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))
[   13.727511][  T275]  ? 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))
[   13.727516][  T275]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   13.727520][  T275]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   13.727522][  T275]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   13.727527][  T275]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   13.727531][  T275]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   13.727535][  T275]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   13.727536][  T275]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   13.727541][  T275]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   13.727544][  T275]  ____sys_sendmsg (net/socket.c:2713)
[   13.727547][  T275]  ? copy_msghdr_from_user (net/socket.c:2650)
[   13.727549][  T275]  ? sock_write_iter (net/socket.c:1269)
[   13.727550][  T275]  ? move_addr_to_kernel (net/socket.c:258)
[   13.727558][  T275]  ___sys_sendmsg (net/socket.c:2767)
[   13.727561][  T275]  ? copy_msghdr_from_user (net/socket.c:2619)
[   13.727578][  T275]  __sys_sendmsg (net/socket.c:2799)
[   13.727581][  T275]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   13.727587][  T275]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.727590][  T275]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   13.727594][  T275]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   13.727596][  T275]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   13.727599][  T275] RIP: 0033:0x7f370e83854e
[   13.727603][  T275] 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
[   13.727604][  T275] RSP: 002b:00007ffeb8015200 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   13.727607][  T275] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007f370e83854e
[   13.727608][  T275] RDX: 0000000000000000 RSI: 00007ffeb80152b0 RDI: 0000000000000005
[   13.727609][  T275] RBP: 00007ffeb8015210 R08: 0000000000000000 R09: 0000000000000000
[   13.727610][  T275] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91aed8
[   13.727611][  T275] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffeb8015970
| [   18.720804][   T12] softirqs last disabled at (34702): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:109)
| [   18.720807][   T12] Preemption disabled at:
| [   18.720807][   T12] 0x0
| [   18.720818][   T12] Tainted: [W]=WARN
[   18.720818][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   18.720820][   T12] Workqueue: netns cleanup_net
[   18.720824][   T12] Call Trace:
[   18.720825][   T12]  <TASK>
[   18.720827][   T12]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   18.720834][   T12]  __might_resched.cold (kernel/sched/core.c:9234)
[   18.720838][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   18.720842][   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)
[   18.720847][   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))
[   18.720849][   T12]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   18.720855][   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)
[   18.720858][   T12]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   18.720862][   T12]  put_chars (drivers/char/virtio_console.c:1176)
[   18.720864][   T12]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   18.720871][   T12]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   18.720879][   T12]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   18.720882][   T12]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   18.720887][   T12]  console_emit_next_record (kernel/printk/printk.c:3183)
[   18.720891][   T12]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   18.720893][   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))
[   18.720897][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   18.720899][   T12]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   18.720903][   T12]  console_flush_one_record (kernel/printk/printk.c:3268)
[   18.720908][   T12]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   18.720910][   T12]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   18.720915][   T12]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   18.720918][   T12]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   18.720920][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   18.720922][   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)
[   18.720926][   T12]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   18.720928][   T12]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   18.720931][   T12]  vprintk_emit (kernel/printk/printk.c:2479)
[   18.720934][   T12]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   18.720935][   T12]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   18.720941][   T12]  _printk (kernel/printk/printk.c:2504)
[   18.720945][   T12]  ? snapshot_read.cold (user.c:?)
[   18.720953][   T12]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   18.720958][   T12]  br_stp_disable_port (net/bridge/br_stp_if.c:106)
[   18.720963][   T12]  br_device_event (net/bridge/br.c:111)
[   18.720966][   T12]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   18.720970][   T12]  ? packet_sendmsg_spkt (af_packet.c:?)
[   18.720976][   T12]  notifier_call_chain (kernel/notifier.c:85)
[   18.720982][   T12]  netif_close_many (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:1829)
[   18.720986][   T12]  ? trace_kfree (./include/trace/events/kmem.h:97 (discriminator 22))
[   18.720994][   T12]  ? __dev_close_many (net/core/dev.c:1804)
[   18.720997][   T12]  ? netif_close_many_and_unlock (net/core/dev.c:12411)
[   18.721001][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12487)
[   18.721004][   T12]  ? ops_undo_list (net/core/net_namespace.c:206 net/core/net_namespace.c:253)
[   18.721006][   T12]  ? worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   18.721008][   T12]  ? kthread (kernel/kthread.c:436)
[   18.721009][   T12]  ? ret_from_fork (arch/x86/kernel/process.c:158)
[   18.721012][   T12]  ? ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
[   18.721015][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:419 (discriminator 3))
[   18.721023][   T12]  default_device_exit_batch (net/core/dev.c:12589 net/core/dev.c:13288)
[   18.721026][   T12]  ? unregister_netdevice_queue (./include/linux/list.h:173)
[   18.721029][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   18.721031][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   18.721036][   T12]  ops_undo_list (net/core/net_namespace.c:206 net/core/net_namespace.c:253)
[   18.721040][   T12]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   18.721042][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   18.721044][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   18.721047][   T12]  ? idr_destroy (lib/radix-tree.c:310 lib/radix-tree.c:674 lib/radix-tree.c:1563)
[   18.721052][   T12]  cleanup_net (net/core/net_namespace.c:706)
[   18.721055][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   18.721059][   T12]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   18.721061][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   18.721064][   T12]  process_one_work (kernel/workqueue.c:3387)
[   18.721071][   T12]  ? __queue_delayed_work (kernel/workqueue.c:2622)
[   18.721074][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   18.721082][   T12]  worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   18.721089][   T12]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   18.721092][   T12]  kthread (kernel/kthread.c:436)
[   18.721093][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   18.721097][   T12]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   18.721100][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   18.721103][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1))
[   18.721106][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   18.721109][   T12]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   18.721112][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   22.277124][  T395] softirqs last disabled at (42138): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   22.277127][  T395] Preemption disabled at:
| [   22.277127][  T395] vprintk_emit (kernel/printk/printk.c:2471)
| [   22.277136][  T395] Tainted: [W]=WARN
[   22.277137][  T395] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   22.277138][  T395] Call Trace:
[   22.277140][  T395]  <TASK>
[   22.277141][  T395]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   22.277148][  T395]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   22.277149][  T395]  __might_resched.cold (kernel/sched/core.c:9234)
[   22.277154][  T395]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   22.277158][  T395]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   22.277162][  T395]  __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))
[   22.277164][  T395]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   22.277170][  T395]  ? 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)
[   22.277173][  T395]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   22.277176][  T395]  put_chars (drivers/char/virtio_console.c:1176)
[   22.277179][  T395]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   22.277185][  T395]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   22.277192][  T395]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   22.277196][  T395]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   22.277200][  T395]  console_emit_next_record (kernel/printk/printk.c:3183)
[   22.277204][  T395]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   22.277206][  T395]  ? 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))
[   22.277209][  T395]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.277212][  T395]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   22.277216][  T395]  console_flush_one_record (kernel/printk/printk.c:3268)
[   22.277221][  T395]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   22.277223][  T395]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.277228][  T395]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   22.277231][  T395]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   22.277233][  T395]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.277235][  T395]  ? 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)
[   22.277238][  T395]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   22.277240][  T395]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   22.277243][  T395]  vprintk_emit (kernel/printk/printk.c:2479)
[   22.277246][  T395]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   22.277248][  T395]  ? _mutex_trylock_nest_lock (kernel/locking/mutex.c:1227 (discriminator 6))
[   22.277253][  T395]  _printk (kernel/printk/printk.c:2504)
[   22.277257][  T395]  ? snapshot_read.cold (user.c:?)
[   22.277259][  T395]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   22.277261][  T395]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   22.277264][  T395]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   22.277266][  T395]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   22.277270][  T395]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   22.277273][  T395]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   22.277275][  T395]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   22.277278][  T395]  ? netdev_notice (net/core/dev.c:13194)
[   22.277280][  T395]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   22.277283][  T395]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   22.277286][  T395]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   22.277289][  T395]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   22.277291][  T395]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   22.277293][  T395]  ? register_netdev (net/core/dev.c:11618)
[   22.277295][  T395]  ? 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))
[   22.277300][  T395]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   22.277303][  T395]  ? __kernel_text_address (kernel/extable.c:79)
[   22.277305][  T395]  ? write_profile (profile.c:?)
[   22.277309][  T395]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   22.277315][  T395]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   22.277318][  T395]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   22.277321][  T395]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   22.277322][  T395]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   22.277324][  T395]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   22.277327][  T395]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   22.277329][  T395]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   22.277331][  T395]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   22.277333][  T395]  ? kasan_save_stack (mm/kasan/common.c:58)
[   22.277335][  T395]  ? kasan_save_stack (mm/kasan/common.c:57)
[   22.277336][  T395]  ? kasan_save_track (mm/kasan/common.c:78)
[   22.277337][  T395]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   22.277340][  T395]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.277341][  T395]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   22.277345][  T395]  ? ___sys_sendmsg (net/socket.c:2758)
[   22.277348][  T395]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   22.277350][  T395]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   22.277353][  T395]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.277354][  T395]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   22.277356][  T395]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.277357][  T395]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.277359][  T395]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   22.277361][  T395]  ? __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)
[   22.277363][  T395]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   22.277365][  T395]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   22.277368][  T395]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   22.277369][  T395]  ? nla_get_range_signed (lib/nlattr.c:270)
[   22.277374][  T395]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.277376][  T395]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   22.277381][  T395]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   22.277386][  T395]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   22.277388][  T395]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.277393][  T395]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   22.277395][  T395]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   22.277397][  T395]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   22.277398][  T395]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   22.277402][  T395]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   22.277404][  T395]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   22.277407][  T395]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   22.277409][  T395]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.277413][  T395]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   22.277415][  T395]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   22.277419][  T395]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   22.277422][  T395]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   22.277425][  T395]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   22.277431][  T395]  ? 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))
[   22.277433][  T395]  ? 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))
[   22.277438][  T395]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   22.277442][  T395]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   22.277445][  T395]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   22.277449][  T395]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   22.277453][  T395]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   22.277457][  T395]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   22.277458][  T395]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   22.277464][  T395]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   22.277467][  T395]  ____sys_sendmsg (net/socket.c:2713)
[   22.277469][  T395]  ? copy_msghdr_from_user (net/socket.c:2650)
[   22.277471][  T395]  ? sock_write_iter (net/socket.c:1269)
[   22.277473][  T395]  ? move_addr_to_kernel (net/socket.c:258)
[   22.277480][  T395]  ___sys_sendmsg (net/socket.c:2767)
[   22.277483][  T395]  ? copy_msghdr_from_user (net/socket.c:2619)
[   22.277499][  T395]  __sys_sendmsg (net/socket.c:2799)
[   22.277502][  T395]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   22.277508][  T395]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.277511][  T395]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   22.277514][  T395]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   22.277517][  T395]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   22.277519][  T395] RIP: 0033:0x7f28bfdee54e
[   22.277523][  T395] 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
[   22.277525][  T395] RSP: 002b:00007ffffe1b8de0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   22.277528][  T395] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007f28bfdee54e
[   22.277529][  T395] RDX: 0000000000000000 RSI: 00007ffffe1b8e90 RDI: 0000000000000005
[   22.277530][  T395] RBP: 00007ffffe1b8df0 R08: 0000000000000000 R09: 0000000000000000
[   22.277531][  T395] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91aee0
[   22.277531][  T395] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffffe1b9550
| [   23.311481][  T415] softirqs last disabled at (41600): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   23.311484][  T415] Preemption disabled at:
| [   23.311484][  T415] vprintk_emit (kernel/printk/printk.c:2471)
| [   23.311493][  T415] Tainted: [W]=WARN
[   23.311494][  T415] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   23.311495][  T415] Call Trace:
[   23.311497][  T415]  <TASK>
[   23.311499][  T415]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   23.311505][  T415]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   23.311506][  T415]  __might_resched.cold (kernel/sched/core.c:9234)
[   23.311511][  T415]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   23.311515][  T415]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   23.311519][  T415]  __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))
[   23.311521][  T415]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   23.311527][  T415]  ? 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)
[   23.311530][  T415]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   23.311533][  T415]  put_chars (drivers/char/virtio_console.c:1176)
[   23.311536][  T415]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   23.311542][  T415]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   23.311549][  T415]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   23.311553][  T415]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   23.311557][  T415]  console_emit_next_record (kernel/printk/printk.c:3183)
[   23.311561][  T415]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   23.311563][  T415]  ? 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))
[   23.311566][  T415]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   23.311569][  T415]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   23.311573][  T415]  console_flush_one_record (kernel/printk/printk.c:3268)
[   23.311577][  T415]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   23.311579][  T415]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   23.311584][  T415]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   23.311587][  T415]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   23.311589][  T415]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   23.311590][  T415]  ? 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)
[   23.311594][  T415]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   23.311596][  T415]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   23.311598][  T415]  vprintk_emit (kernel/printk/printk.c:2479)
[   23.311601][  T415]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   23.311604][  T415]  ? _mutex_trylock_nest_lock (kernel/locking/mutex.c:1227 (discriminator 6))
[   23.311609][  T415]  _printk (kernel/printk/printk.c:2504)
[   23.311612][  T415]  ? snapshot_read.cold (user.c:?)
[   23.311614][  T415]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   23.311617][  T415]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   23.311620][  T415]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   23.311622][  T415]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   23.311625][  T415]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   23.311628][  T415]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   23.311630][  T415]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   23.311633][  T415]  ? netdev_notice (net/core/dev.c:13194)
[   23.311636][  T415]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   23.311639][  T415]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   23.311641][  T415]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   23.311645][  T415]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   23.311647][  T415]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   23.311649][  T415]  ? register_netdev (net/core/dev.c:11618)
[   23.311650][  T415]  ? 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))
[   23.311655][  T415]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   23.311658][  T415]  ? __kernel_text_address (kernel/extable.c:79)
[   23.311660][  T415]  ? write_profile (profile.c:?)
[   23.311664][  T415]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   23.311670][  T415]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   23.311673][  T415]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   23.311675][  T415]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   23.311676][  T415]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   23.311678][  T415]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   23.311682][  T415]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   23.311683][  T415]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   23.311685][  T415]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   23.311687][  T415]  ? kasan_save_stack (mm/kasan/common.c:58)
[   23.311689][  T415]  ? kasan_save_stack (mm/kasan/common.c:57)
[   23.311690][  T415]  ? kasan_save_track (mm/kasan/common.c:78)
[   23.311692][  T415]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   23.311694][  T415]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   23.311696][  T415]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   23.311699][  T415]  ? ___sys_sendmsg (net/socket.c:2758)
[   23.311702][  T415]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   23.311704][  T415]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   23.311707][  T415]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   23.311708][  T415]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   23.311710][  T415]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   23.311711][  T415]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   23.311713][  T415]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   23.311715][  T415]  ? __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)
[   23.311716][  T415]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   23.311718][  T415]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   23.311721][  T415]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   23.311722][  T415]  ? nla_get_range_signed (lib/nlattr.c:270)
[   23.311727][  T415]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   23.311730][  T415]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   23.311735][  T415]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   23.311740][  T415]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   23.311742][  T415]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   23.311746][  T415]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   23.311748][  T415]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   23.311750][  T415]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   23.311751][  T415]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   23.311755][  T415]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   23.311757][  T415]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   23.311760][  T415]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   23.311762][  T415]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   23.311766][  T415]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   23.311768][  T415]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   23.311771][  T415]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   23.311775][  T415]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   23.311778][  T415]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   23.311784][  T415]  ? 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))
[   23.311786][  T415]  ? 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))
[   23.311790][  T415]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   23.311794][  T415]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   23.311797][  T415]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   23.311801][  T415]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   23.311805][  T415]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   23.311808][  T415]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   23.311810][  T415]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   23.311815][  T415]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   23.311818][  T415]  ____sys_sendmsg (net/socket.c:2713)
[   23.311820][  T415]  ? copy_msghdr_from_user (net/socket.c:2650)
[   23.311822][  T415]  ? sock_write_iter (net/socket.c:1269)
[   23.311824][  T415]  ? move_addr_to_kernel (net/socket.c:258)
[   23.311831][  T415]  ___sys_sendmsg (net/socket.c:2767)
[   23.311834][  T415]  ? copy_msghdr_from_user (net/socket.c:2619)
[   23.311849][  T415]  __sys_sendmsg (net/socket.c:2799)
[   23.311852][  T415]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   23.311859][  T415]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   23.311861][  T415]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   23.311865][  T415]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   23.311867][  T415]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   23.311869][  T415] RIP: 0033:0x7fcf3dec954e
[   23.311873][  T415] 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
[   23.311875][  T415] RSP: 002b:00007ffea2f3a750 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   23.311878][  T415] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fcf3dec954e
[   23.311879][  T415] RDX: 0000000000000000 RSI: 00007ffea2f3a800 RDI: 0000000000000005
[   23.311880][  T415] RBP: 00007ffea2f3a760 R08: 0000000000000000 R09: 0000000000000000
[   23.311881][  T415] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91aee1
[   23.311881][  T415] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffea2f3aec0
| [   28.321242][   T12] softirqs last disabled at (193982): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:109)
| [   28.321244][   T12] Preemption disabled at:
| [   28.321245][   T12] 0x0
| [   28.321256][   T12] Tainted: [W]=WARN
[   28.321257][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   28.321259][   T12] Workqueue: netns cleanup_net
[   28.321262][   T12] Call Trace:
[   28.321264][   T12]  <TASK>
[   28.321266][   T12]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   28.321273][   T12]  __might_resched.cold (kernel/sched/core.c:9234)
[   28.321278][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   28.321282][   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)
[   28.321287][   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))
[   28.321289][   T12]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   28.321296][   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)
[   28.321298][   T12]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   28.321302][   T12]  put_chars (drivers/char/virtio_console.c:1176)
[   28.321305][   T12]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   28.321312][   T12]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   28.321320][   T12]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   28.321324][   T12]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   28.321329][   T12]  console_emit_next_record (kernel/printk/printk.c:3183)
[   28.321333][   T12]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   28.321335][   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))
[   28.321338][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.321341][   T12]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   28.321345][   T12]  console_flush_one_record (kernel/printk/printk.c:3268)
[   28.321350][   T12]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   28.321352][   T12]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   28.321358][   T12]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   28.321361][   T12]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   28.321363][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.321364][   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)
[   28.321368][   T12]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   28.321370][   T12]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   28.321373][   T12]  vprintk_emit (kernel/printk/printk.c:2479)
[   28.321376][   T12]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   28.321378][   T12]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   28.321380][   T12]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   28.321382][   T12]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   28.321387][   T12]  _printk (kernel/printk/printk.c:2504)
[   28.321391][   T12]  ? snapshot_read.cold (user.c:?)
[   28.321400][   T12]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   28.321405][   T12]  br_stp_disable_port (net/bridge/br_stp_if.c:106)
[   28.321408][   T12]  br_device_event (net/bridge/br.c:111)
[   28.321411][   T12]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   28.321415][   T12]  ? packet_sendmsg_spkt (af_packet.c:?)
[   28.321421][   T12]  notifier_call_chain (kernel/notifier.c:85)
[   28.321427][   T12]  netif_close_many (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:1829)
[   28.321431][   T12]  ? trace_kfree (./include/trace/events/kmem.h:97 (discriminator 22))
[   28.321434][   T12]  ? __dev_close_many (net/core/dev.c:1804)
[   28.321438][   T12]  ? netif_close_many_and_unlock (net/core/dev.c:12411)
[   28.321442][   T12]  unregister_netdevice_many_notify (net/core/dev.c:12487)
[   28.321445][   T12]  ? ops_undo_list (net/core/net_namespace.c:206 net/core/net_namespace.c:253)
[   28.321447][   T12]  ? worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   28.321449][   T12]  ? kthread (kernel/kthread.c:436)
[   28.321450][   T12]  ? ret_from_fork (arch/x86/kernel/process.c:158)
[   28.321454][   T12]  ? ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
[   28.321456][   T12]  ? unregister_netdevice_queued (./include/linux/list.h:419 (discriminator 3))
[   28.321465][   T12]  default_device_exit_batch (net/core/dev.c:12589 net/core/dev.c:13288)
[   28.321468][   T12]  ? unregister_netdevice_queue (./include/linux/list.h:173)
[   28.321471][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   28.321474][   T12]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   28.321478][   T12]  ops_undo_list (net/core/net_namespace.c:206 net/core/net_namespace.c:253)
[   28.321482][   T12]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   28.321485][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   28.321487][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   28.321490][   T12]  ? idr_destroy (lib/radix-tree.c:310 lib/radix-tree.c:674 lib/radix-tree.c:1563)
[   28.321495][   T12]  cleanup_net (net/core/net_namespace.c:706)
[   28.321499][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   28.321503][   T12]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   28.321505][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.321508][   T12]  process_one_work (kernel/workqueue.c:3387)
[   28.321515][   T12]  ? __queue_delayed_work (kernel/workqueue.c:2622)
[   28.321518][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   28.321526][   T12]  worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   28.321534][   T12]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   28.321536][   T12]  kthread (kernel/kthread.c:436)
[   28.321538][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   28.321542][   T12]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   28.321545][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   28.321548][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1))
[   28.321551][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   28.321555][   T12]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   28.321558][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   31.493939][  T523] softirqs last disabled at (45226): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   31.493941][  T523] Preemption disabled at:
| [   31.493942][  T523] vprintk_emit (kernel/printk/printk.c:2471)
| [   31.493951][  T523] Tainted: [W]=WARN
[   31.493952][  T523] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   31.493953][  T523] Call Trace:
[   31.493955][  T523]  <TASK>
[   31.493956][  T523]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   31.493966][  T523]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   31.493968][  T523]  __might_resched.cold (kernel/sched/core.c:9234)
[   31.493972][  T523]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   31.493976][  T523]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   31.493980][  T523]  __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))
[   31.493982][  T523]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   31.493989][  T523]  ? 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)
[   31.493991][  T523]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   31.493995][  T523]  put_chars (drivers/char/virtio_console.c:1176)
[   31.493998][  T523]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   31.494004][  T523]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   31.494012][  T523]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   31.494015][  T523]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   31.494024][  T523]  console_emit_next_record (kernel/printk/printk.c:3183)
[   31.494028][  T523]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   31.494030][  T523]  ? 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))
[   31.494033][  T523]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   31.494036][  T523]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   31.494040][  T523]  console_flush_one_record (kernel/printk/printk.c:3268)
[   31.494044][  T523]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   31.494046][  T523]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   31.494051][  T523]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   31.494054][  T523]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   31.494056][  T523]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   31.494058][  T523]  ? 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)
[   31.494061][  T523]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   31.494063][  T523]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   31.494066][  T523]  vprintk_emit (kernel/printk/printk.c:2479)
[   31.494069][  T523]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   31.494071][  T523]  ? _mutex_trylock_nest_lock (kernel/locking/mutex.c:1227 (discriminator 6))
[   31.494076][  T523]  _printk (kernel/printk/printk.c:2504)
[   31.494080][  T523]  ? snapshot_read.cold (user.c:?)
[   31.494082][  T523]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   31.494085][  T523]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   31.494088][  T523]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   31.494090][  T523]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   31.494094][  T523]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   31.494097][  T523]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   31.494099][  T523]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   31.494102][  T523]  ? netdev_notice (net/core/dev.c:13194)
[   31.494104][  T523]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   31.494107][  T523]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   31.494110][  T523]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   31.494113][  T523]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   31.494115][  T523]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   31.494117][  T523]  ? register_netdev (net/core/dev.c:11618)
[   31.494119][  T523]  ? 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))
[   31.494124][  T523]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   31.494126][  T523]  ? __kernel_text_address (kernel/extable.c:79)
[   31.494129][  T523]  ? write_profile (profile.c:?)
[   31.494133][  T523]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   31.494139][  T523]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   31.494142][  T523]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   31.494145][  T523]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   31.494146][  T523]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   31.494148][  T523]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   31.494151][  T523]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   31.494153][  T523]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   31.494155][  T523]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   31.494157][  T523]  ? kasan_save_stack (mm/kasan/common.c:58)
[   31.494159][  T523]  ? kasan_save_stack (mm/kasan/common.c:57)
[   31.494160][  T523]  ? kasan_save_track (mm/kasan/common.c:78)
[   31.494161][  T523]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   31.494164][  T523]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   31.494165][  T523]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   31.494168][  T523]  ? ___sys_sendmsg (net/socket.c:2758)
[   31.494172][  T523]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   31.494174][  T523]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   31.494177][  T523]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   31.494178][  T523]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   31.494180][  T523]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   31.494181][  T523]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   31.494183][  T523]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   31.494185][  T523]  ? __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)
[   31.494186][  T523]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   31.494188][  T523]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   31.494191][  T523]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   31.494193][  T523]  ? nla_get_range_signed (lib/nlattr.c:270)
[   31.494198][  T523]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   31.494200][  T523]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   31.494205][  T523]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   31.494210][  T523]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   31.494212][  T523]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   31.494216][  T523]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   31.494218][  T523]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   31.494220][  T523]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   31.494222][  T523]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   31.494226][  T523]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   31.494228][  T523]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   31.494231][  T523]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   31.494232][  T523]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   31.494237][  T523]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   31.494239][  T523]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   31.494242][  T523]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   31.494246][  T523]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   31.494249][  T523]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   31.494255][  T523]  ? 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))
[   31.494257][  T523]  ? 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))
[   31.494261][  T523]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   31.494265][  T523]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   31.494268][  T523]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   31.494272][  T523]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   31.494276][  T523]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   31.494280][  T523]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   31.494281][  T523]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   31.494287][  T523]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   31.494289][  T523]  ____sys_sendmsg (net/socket.c:2713)
[   31.494292][  T523]  ? copy_msghdr_from_user (net/socket.c:2650)
[   31.494294][  T523]  ? sock_write_iter (net/socket.c:1269)
[   31.494295][  T523]  ? move_addr_to_kernel (net/socket.c:258)
[   31.494303][  T523]  ___sys_sendmsg (net/socket.c:2767)
[   31.494306][  T523]  ? copy_msghdr_from_user (net/socket.c:2619)
[   31.494321][  T523]  __sys_sendmsg (net/socket.c:2799)
[   31.494324][  T523]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   31.494330][  T523]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   31.494333][  T523]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   31.494336][  T523]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   31.494339][  T523]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   31.494341][  T523] RIP: 0033:0x7f0d7d72b54e
[   31.494345][  T523] 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
[   31.494347][  T523] RSP: 002b:00007ffcad275350 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   31.494350][  T523] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007f0d7d72b54e
[   31.494351][  T523] RDX: 0000000000000000 RSI: 00007ffcad275400 RDI: 0000000000000005
[   31.494352][  T523] RBP: 00007ffcad275360 R08: 0000000000000000 R09: 0000000000000000
[   31.494353][  T523] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91aee9
[   31.494354][  T523] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffcad275ac0
| [   37.609842][  T583] softirqs last disabled at (33672): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   37.609845][  T583] Preemption disabled at:
| [   37.609846][  T583] vprintk_emit (kernel/printk/printk.c:2471)
| [   37.609855][  T583] Tainted: [W]=WARN
[   37.609855][  T583] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   37.609857][  T583] Call Trace:
[   37.609859][  T583]  <TASK>
[   37.609860][  T583]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   37.609866][  T583]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   37.609868][  T583]  __might_resched.cold (kernel/sched/core.c:9234)
[   37.609873][  T583]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   37.609877][  T583]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   37.609881][  T583]  __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))
[   37.609883][  T583]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   37.609890][  T583]  ? 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)
[   37.609893][  T583]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   37.609897][  T583]  put_chars (drivers/char/virtio_console.c:1176)
[   37.609899][  T583]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   37.609906][  T583]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   37.609913][  T583]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   37.609917][  T583]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   37.609921][  T583]  console_emit_next_record (kernel/printk/printk.c:3183)
[   37.609925][  T583]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   37.609927][  T583]  ? 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))
[   37.609930][  T583]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   37.609933][  T583]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   37.609937][  T583]  console_flush_one_record (kernel/printk/printk.c:3268)
[   37.609941][  T583]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   37.609943][  T583]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   37.609949][  T583]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   37.609952][  T583]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   37.609954][  T583]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   37.609955][  T583]  ? 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)
[   37.609959][  T583]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   37.609964][  T583]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   37.609967][  T583]  vprintk_emit (kernel/printk/printk.c:2479)
[   37.609971][  T583]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   37.609973][  T583]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   37.609975][  T583]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   37.609977][  T583]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   37.609981][  T583]  _printk (kernel/printk/printk.c:2504)
[   37.609985][  T583]  ? snapshot_read.cold (user.c:?)
[   37.609987][  T583]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   37.609989][  T583]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   37.609992][  T583]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   37.609994][  T583]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   37.609998][  T583]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   37.610001][  T583]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   37.610003][  T583]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   37.610006][  T583]  ? netdev_notice (net/core/dev.c:13194)
[   37.610009][  T583]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   37.610012][  T583]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   37.610014][  T583]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   37.610018][  T583]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   37.610020][  T583]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   37.610023][  T583]  ? netif_set_mtu_ext (net/core/dev.c:2350 net/core/dev.c:9952)
[   37.610027][  T583]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   37.610038][  T583]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   37.610044][  T583]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   37.610047][  T583]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   37.610051][  T583]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   37.610052][  T583]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   37.610054][  T583]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   37.610058][  T583]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   37.610060][  T583]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   37.610062][  T583]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   37.610064][  T583]  ? kasan_save_stack (mm/kasan/common.c:58)
[   37.610066][  T583]  ? kasan_save_stack (mm/kasan/common.c:57)
[   37.610067][  T583]  ? kasan_save_track (mm/kasan/common.c:78)
[   37.610069][  T583]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   37.610071][  T583]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   37.610073][  T583]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   37.610076][  T583]  ? ___sys_sendmsg (net/socket.c:2758)
[   37.610080][  T583]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   37.610082][  T583]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   37.610084][  T583]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   37.610086][  T583]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   37.610088][  T583]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   37.610089][  T583]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   37.610091][  T583]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   37.610093][  T583]  ? __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)
[   37.610096][  T583]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   37.610098][  T583]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   37.610101][  T583]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   37.610102][  T583]  ? nla_get_range_signed (lib/nlattr.c:270)
[   37.610107][  T583]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   37.610110][  T583]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   37.610115][  T583]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   37.610120][  T583]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   37.610122][  T583]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   37.610127][  T583]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   37.610129][  T583]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   37.610131][  T583]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   37.610133][  T583]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   37.610136][  T583]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   37.610139][  T583]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   37.610142][  T583]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   37.610143][  T583]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   37.610148][  T583]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   37.610150][  T583]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   37.610153][  T583]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   37.610157][  T583]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   37.610160][  T583]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   37.610167][  T583]  ? 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))
[   37.610169][  T583]  ? 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))
[   37.610173][  T583]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   37.610178][  T583]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   37.610180][  T583]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   37.610185][  T583]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   37.610189][  T583]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   37.610193][  T583]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   37.610194][  T583]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   37.610200][  T583]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   37.610203][  T583]  ____sys_sendmsg (net/socket.c:2713)
[   37.610205][  T583]  ? copy_msghdr_from_user (net/socket.c:2650)
[   37.610207][  T583]  ? sock_write_iter (net/socket.c:1269)
[   37.610209][  T583]  ? move_addr_to_kernel (net/socket.c:258)
[   37.610216][  T583]  ___sys_sendmsg (net/socket.c:2767)
[   37.610219][  T583]  ? copy_msghdr_from_user (net/socket.c:2619)
[   37.610236][  T583]  __sys_sendmsg (net/socket.c:2799)
[   37.610239][  T583]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   37.610245][  T583]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   37.610248][  T583]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   37.610251][  T583]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   37.610254][  T583]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   37.610257][  T583] RIP: 0033:0x7f41e101554e
[   37.610261][  T583] 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
[   37.610262][  T583] RSP: 002b:00007ffd00d5d8f0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   37.610265][  T583] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007f41e101554e
[   37.610266][  T583] RDX: 0000000000000000 RSI: 00007ffd00d5d9a0 RDI: 0000000000000005
[   37.610267][  T583] RBP: 00007ffd00d5d900 R08: 0000000000000000 R09: 0000000000000000
[   37.610268][  T583] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91aeef
[   37.610269][  T583] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffd00d5e060
| [   39.097398][  T630] softirqs last disabled at (38576): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   39.097401][  T630] Preemption disabled at:
| [   39.097401][  T630] vprintk_emit (kernel/printk/printk.c:2471)
| [   39.097410][  T630] Tainted: [W]=WARN
[   39.097411][  T630] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   39.097413][  T630] Call Trace:
[   39.097414][  T630]  <TASK>
[   39.097416][  T630]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   39.097422][  T630]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   39.097423][  T630]  __might_resched.cold (kernel/sched/core.c:9234)
[   39.097428][  T630]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   39.097432][  T630]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   39.097436][  T630]  __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))
[   39.097438][  T630]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   39.097444][  T630]  ? 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)
[   39.097447][  T630]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   39.097451][  T630]  put_chars (drivers/char/virtio_console.c:1176)
[   39.097453][  T630]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   39.097459][  T630]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   39.097467][  T630]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   39.097470][  T630]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   39.097475][  T630]  console_emit_next_record (kernel/printk/printk.c:3183)
[   39.097479][  T630]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   39.097481][  T630]  ? 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))
[   39.097484][  T630]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   39.097487][  T630]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   39.097491][  T630]  console_flush_one_record (kernel/printk/printk.c:3268)
[   39.097495][  T630]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   39.097497][  T630]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   39.097504][  T630]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   39.097508][  T630]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   39.097510][  T630]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   39.097513][  T630]  ? 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)
[   39.097519][  T630]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   39.097521][  T630]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   39.097524][  T630]  vprintk_emit (kernel/printk/printk.c:2479)
[   39.097527][  T630]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   39.097528][  T630]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   39.097530][  T630]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   39.097532][  T630]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   39.097536][  T630]  _printk (kernel/printk/printk.c:2504)
[   39.097539][  T630]  ? snapshot_read.cold (user.c:?)
[   39.097541][  T630]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   39.097543][  T630]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   39.097546][  T630]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   39.097548][  T630]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   39.097552][  T630]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   39.097555][  T630]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   39.097557][  T630]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   39.097560][  T630]  ? netdev_notice (net/core/dev.c:13194)
[   39.097563][  T630]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   39.097565][  T630]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   39.097568][  T630]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   39.097571][  T630]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   39.097573][  T630]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   39.097576][  T630]  ? netif_set_mtu_ext (net/core/dev.c:2350 net/core/dev.c:9952)
[   39.097580][  T630]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   39.097584][  T630]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   39.097590][  T630]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   39.097593][  T630]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   39.097596][  T630]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   39.097598][  T630]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   39.097600][  T630]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   39.097603][  T630]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   39.097605][  T630]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   39.097607][  T630]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   39.097609][  T630]  ? kasan_save_stack (mm/kasan/common.c:58)
[   39.097611][  T630]  ? kasan_save_stack (mm/kasan/common.c:57)
[   39.097612][  T630]  ? kasan_save_track (mm/kasan/common.c:78)
[   39.097613][  T630]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   39.097616][  T630]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   39.097617][  T630]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   39.097620][  T630]  ? ___sys_sendmsg (net/socket.c:2758)
[   39.097624][  T630]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   39.097626][  T630]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   39.097629][  T630]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   39.097630][  T630]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   39.097632][  T630]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   39.097633][  T630]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   39.097635][  T630]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   39.097637][  T630]  ? __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)
[   39.097639][  T630]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   39.097641][  T630]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   39.097645][  T630]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   39.097646][  T630]  ? nla_get_range_signed (lib/nlattr.c:270)
[   39.097650][  T630]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   39.097653][  T630]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   39.097658][  T630]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   39.097663][  T630]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   39.097665][  T630]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   39.097669][  T630]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   39.097671][  T630]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   39.097673][  T630]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   39.097675][  T630]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   39.097678][  T630]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   39.097680][  T630]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   39.097683][  T630]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   39.097685][  T630]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   39.097689][  T630]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   39.097691][  T630]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   39.097694][  T630]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   39.097698][  T630]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   39.097701][  T630]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   39.097707][  T630]  ? 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))
[   39.097709][  T630]  ? 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))
[   39.097714][  T630]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   39.097717][  T630]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   39.097720][  T630]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   39.097724][  T630]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   39.097728][  T630]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   39.097732][  T630]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   39.097733][  T630]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   39.097739][  T630]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   39.097742][  T630]  ____sys_sendmsg (net/socket.c:2713)
[   39.097744][  T630]  ? copy_msghdr_from_user (net/socket.c:2650)
[   39.097746][  T630]  ? sock_write_iter (net/socket.c:1269)
[   39.097748][  T630]  ? move_addr_to_kernel (net/socket.c:258)
[   39.097757][  T630]  ___sys_sendmsg (net/socket.c:2767)
[   39.097762][  T630]  ? copy_msghdr_from_user (net/socket.c:2619)
[   39.097778][  T630]  __sys_sendmsg (net/socket.c:2799)
[   39.097781][  T630]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   39.097787][  T630]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   39.097790][  T630]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   39.097793][  T630]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   39.097795][  T630]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   39.097798][  T630] RIP: 0033:0x7f085f3bc54e
[   39.097801][  T630] 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
[   39.097803][  T630] RSP: 002b:00007ffe64d696e0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   39.097806][  T630] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007f085f3bc54e
[   39.097807][  T630] RDX: 0000000000000000 RSI: 00007ffe64d69790 RDI: 0000000000000005
[   39.097808][  T630] RBP: 00007ffe64d696f0 R08: 0000000000000000 R09: 0000000000000000
[   39.097809][  T630] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91aef1
[   39.097810][  T630] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffe64d69e50
| [   40.281346][  T677] softirqs last disabled at (41960): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   40.281348][  T677] Preemption disabled at:
| [   40.281349][  T677] vprintk_emit (kernel/printk/printk.c:2471)
| [   40.281358][  T677] Tainted: [W]=WARN
[   40.281359][  T677] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   40.281360][  T677] Call Trace:
[   40.281362][  T677]  <TASK>
[   40.281363][  T677]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   40.281369][  T677]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   40.281371][  T677]  __might_resched.cold (kernel/sched/core.c:9234)
[   40.281375][  T677]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   40.281379][  T677]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   40.281384][  T677]  __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))
[   40.281386][  T677]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   40.281392][  T677]  ? 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)
[   40.281395][  T677]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   40.281399][  T677]  put_chars (drivers/char/virtio_console.c:1176)
[   40.281401][  T677]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   40.281407][  T677]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   40.281415][  T677]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   40.281418][  T677]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   40.281423][  T677]  console_emit_next_record (kernel/printk/printk.c:3183)
[   40.281427][  T677]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   40.281429][  T677]  ? 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))
[   40.281432][  T677]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   40.281435][  T677]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   40.281438][  T677]  console_flush_one_record (kernel/printk/printk.c:3268)
[   40.281443][  T677]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   40.281445][  T677]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   40.281450][  T677]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   40.281453][  T677]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   40.281454][  T677]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   40.281456][  T677]  ? 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)
[   40.281460][  T677]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   40.281462][  T677]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   40.281464][  T677]  vprintk_emit (kernel/printk/printk.c:2479)
[   40.281467][  T677]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   40.281469][  T677]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   40.281471][  T677]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   40.281473][  T677]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   40.281477][  T677]  _printk (kernel/printk/printk.c:2504)
[   40.281480][  T677]  ? snapshot_read.cold (user.c:?)
[   40.281482][  T677]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   40.281485][  T677]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   40.281488][  T677]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   40.281490][  T677]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   40.281494][  T677]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   40.281496][  T677]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   40.281499][  T677]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   40.281501][  T677]  ? netdev_notice (net/core/dev.c:13194)
[   40.281504][  T677]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   40.281507][  T677]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   40.281509][  T677]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   40.281513][  T677]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   40.281515][  T677]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   40.281518][  T677]  ? netif_set_mtu_ext (net/core/dev.c:2350 net/core/dev.c:9952)
[   40.281522][  T677]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   40.281526][  T677]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   40.281532][  T677]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   40.281535][  T677]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   40.281539][  T677]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   40.281540][  T677]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   40.281542][  T677]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   40.281545][  T677]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   40.281547][  T677]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   40.281549][  T677]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   40.281551][  T677]  ? kasan_save_stack (mm/kasan/common.c:58)
[   40.281553][  T677]  ? kasan_save_stack (mm/kasan/common.c:57)
[   40.281554][  T677]  ? kasan_save_track (mm/kasan/common.c:78)
[   40.281556][  T677]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   40.281558][  T677]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   40.281560][  T677]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   40.281563][  T677]  ? ___sys_sendmsg (net/socket.c:2758)
[   40.281566][  T677]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   40.281569][  T677]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   40.281571][  T677]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   40.281573][  T677]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   40.281574][  T677]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   40.281575][  T677]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   40.281577][  T677]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   40.281580][  T677]  ? __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)
[   40.281582][  T677]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   40.281584][  T677]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   40.281588][  T677]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   40.281589][  T677]  ? nla_get_range_signed (lib/nlattr.c:270)
[   40.281593][  T677]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   40.281596][  T677]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   40.281601][  T677]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   40.281606][  T677]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   40.281608][  T677]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   40.281612][  T677]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   40.281614][  T677]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   40.281616][  T677]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   40.281618][  T677]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   40.281622][  T677]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   40.281624][  T677]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   40.281627][  T677]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   40.281628][  T677]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   40.281632][  T677]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   40.281634][  T677]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   40.281638][  T677]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   40.281641][  T677]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   40.281644][  T677]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   40.281651][  T677]  ? 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))
[   40.281653][  T677]  ? 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))
[   40.281657][  T677]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   40.281661][  T677]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   40.281664][  T677]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   40.281668][  T677]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   40.281672][  T677]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   40.281676][  T677]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   40.281677][  T677]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   40.281683][  T677]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   40.281686][  T677]  ____sys_sendmsg (net/socket.c:2713)
[   40.281688][  T677]  ? copy_msghdr_from_user (net/socket.c:2650)
[   40.281690][  T677]  ? sock_write_iter (net/socket.c:1269)
[   40.281692][  T677]  ? move_addr_to_kernel (net/socket.c:258)
[   40.281699][  T677]  ___sys_sendmsg (net/socket.c:2767)
[   40.281702][  T677]  ? copy_msghdr_from_user (net/socket.c:2619)
[   40.281717][  T677]  __sys_sendmsg (net/socket.c:2799)
[   40.281720][  T677]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   40.281727][  T677]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   40.281730][  T677]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   40.281733][  T677]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   40.281735][  T677]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   40.281738][  T677] RIP: 0033:0x7f7a3fb9a54e
[   40.281742][  T677] 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
[   40.281743][  T677] RSP: 002b:00007fff8b328f10 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   40.281746][  T677] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007f7a3fb9a54e
[   40.281747][  T677] RDX: 0000000000000000 RSI: 00007fff8b328fc0 RDI: 0000000000000005
[   40.281748][  T677] RBP: 00007fff8b328f20 R08: 0000000000000000 R09: 0000000000000000
[   40.281749][  T677] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91aef2
[   40.281750][  T677] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fff8b329680
| [   41.532890][  T724] softirqs last disabled at (34296): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   41.532893][  T724] Preemption disabled at:
| [   41.532894][  T724] vprintk_emit (kernel/printk/printk.c:2471)
| [   41.532903][  T724] Tainted: [W]=WARN
[   41.532904][  T724] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   41.532906][  T724] Call Trace:
[   41.532907][  T724]  <TASK>
[   41.532909][  T724]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   41.532915][  T724]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   41.532917][  T724]  __might_resched.cold (kernel/sched/core.c:9234)
[   41.532921][  T724]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   41.532925][  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)
[   41.532930][  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))
[   41.532932][  T724]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   41.532938][  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)
[   41.532941][  T724]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   41.532945][  T724]  put_chars (drivers/char/virtio_console.c:1176)
[   41.532947][  T724]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   41.532954][  T724]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   41.532965][  T724]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   41.532968][  T724]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   41.532973][  T724]  console_emit_next_record (kernel/printk/printk.c:3183)
[   41.532977][  T724]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   41.532979][  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))
[   41.532983][  T724]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   41.532985][  T724]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   41.532989][  T724]  console_flush_one_record (kernel/printk/printk.c:3268)
[   41.532994][  T724]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   41.532996][  T724]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   41.533001][  T724]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   41.533004][  T724]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   41.533006][  T724]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   41.533008][  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)
[   41.533012][  T724]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   41.533013][  T724]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   41.533016][  T724]  vprintk_emit (kernel/printk/printk.c:2479)
[   41.533019][  T724]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   41.533021][  T724]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   41.533023][  T724]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   41.533025][  T724]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   41.533029][  T724]  _printk (kernel/printk/printk.c:2504)
[   41.533033][  T724]  ? snapshot_read.cold (user.c:?)
[   41.533034][  T724]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   41.533042][  T724]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   41.533046][  T724]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   41.533048][  T724]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   41.533052][  T724]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   41.533055][  T724]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   41.533057][  T724]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   41.533060][  T724]  ? netdev_notice (net/core/dev.c:13194)
[   41.533063][  T724]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   41.533066][  T724]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   41.533068][  T724]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   41.533072][  T724]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   41.533074][  T724]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   41.533077][  T724]  ? netif_set_mtu_ext (net/core/dev.c:2350 net/core/dev.c:9952)
[   41.533081][  T724]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   41.533085][  T724]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   41.533092][  T724]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   41.533095][  T724]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   41.533098][  T724]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   41.533100][  T724]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   41.533102][  T724]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   41.533105][  T724]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   41.533107][  T724]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   41.533109][  T724]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   41.533111][  T724]  ? kasan_save_stack (mm/kasan/common.c:58)
[   41.533113][  T724]  ? kasan_save_stack (mm/kasan/common.c:57)
[   41.533114][  T724]  ? kasan_save_track (mm/kasan/common.c:78)
[   41.533116][  T724]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   41.533118][  T724]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   41.533120][  T724]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   41.533123][  T724]  ? ___sys_sendmsg (net/socket.c:2758)
[   41.533127][  T724]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   41.533129][  T724]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   41.533132][  T724]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   41.533133][  T724]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   41.533135][  T724]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   41.533136][  T724]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   41.533138][  T724]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   41.533140][  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)
[   41.533143][  T724]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   41.533145][  T724]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   41.533148][  T724]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   41.533150][  T724]  ? nla_get_range_signed (lib/nlattr.c:270)
[   41.533155][  T724]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   41.533157][  T724]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   41.533162][  T724]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   41.533167][  T724]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   41.533169][  T724]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   41.533174][  T724]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   41.533176][  T724]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   41.533178][  T724]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   41.533180][  T724]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   41.533184][  T724]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   41.533186][  T724]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   41.533189][  T724]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   41.533190][  T724]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   41.533195][  T724]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   41.533197][  T724]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   41.533201][  T724]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   41.533204][  T724]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   41.533207][  T724]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   41.533214][  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))
[   41.533216][  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))
[   41.533221][  T724]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   41.533225][  T724]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   41.533228][  T724]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   41.533232][  T724]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   41.533236][  T724]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   41.533240][  T724]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   41.533242][  T724]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   41.533247][  T724]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   41.533250][  T724]  ____sys_sendmsg (net/socket.c:2713)
[   41.533252][  T724]  ? copy_msghdr_from_user (net/socket.c:2650)
[   41.533255][  T724]  ? sock_write_iter (net/socket.c:1269)
[   41.533256][  T724]  ? move_addr_to_kernel (net/socket.c:258)
[   41.533264][  T724]  ___sys_sendmsg (net/socket.c:2767)
[   41.533267][  T724]  ? copy_msghdr_from_user (net/socket.c:2619)
[   41.533283][  T724]  __sys_sendmsg (net/socket.c:2799)
[   41.533286][  T724]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   41.533292][  T724]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   41.533295][  T724]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   41.533298][  T724]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   41.533301][  T724]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   41.533304][  T724] RIP: 0033:0x7f95ada4254e
[   41.533308][  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
[   41.533309][  T724] RSP: 002b:00007ffd246e5610 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   41.533312][  T724] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007f95ada4254e
[   41.533313][  T724] RDX: 0000000000000000 RSI: 00007ffd246e56c0 RDI: 0000000000000005
[   41.533314][  T724] RBP: 00007ffd246e5620 R08: 0000000000000000 R09: 0000000000000000
[   41.533315][  T724] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91aef3
[   41.533316][  T724] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffd246e5d80
| [   44.875669][  T819] softirqs last disabled at (32874): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   44.875671][  T819] Preemption disabled at:
| [   44.875672][  T819] vprintk_emit (kernel/printk/printk.c:2471)
| [   44.875680][  T819] Tainted: [W]=WARN
[   44.875681][  T819] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   44.875683][  T819] Call Trace:
[   44.875684][  T819]  <TASK>
[   44.875686][  T819]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   44.875692][  T819]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   44.875694][  T819]  __might_resched.cold (kernel/sched/core.c:9234)
[   44.875698][  T819]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   44.875702][  T819]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   44.875706][  T819]  __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))
[   44.875708][  T819]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   44.875714][  T819]  ? 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)
[   44.875717][  T819]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   44.875721][  T819]  put_chars (drivers/char/virtio_console.c:1176)
[   44.875723][  T819]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   44.875729][  T819]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   44.875737][  T819]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   44.875740][  T819]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   44.875744][  T819]  console_emit_next_record (kernel/printk/printk.c:3183)
[   44.875748][  T819]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   44.875750][  T819]  ? 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))
[   44.875754][  T819]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   44.875756][  T819]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   44.875760][  T819]  console_flush_one_record (kernel/printk/printk.c:3268)
[   44.875764][  T819]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   44.875766][  T819]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   44.875771][  T819]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   44.875774][  T819]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   44.875776][  T819]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   44.875778][  T819]  ? 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)
[   44.875781][  T819]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   44.875783][  T819]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   44.875786][  T819]  vprintk_emit (kernel/printk/printk.c:2479)
[   44.875789][  T819]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   44.875791][  T819]  ? _mutex_trylock_nest_lock (kernel/locking/mutex.c:1227 (discriminator 6))
[   44.875796][  T819]  _printk (kernel/printk/printk.c:2504)
[   44.875800][  T819]  ? snapshot_read.cold (user.c:?)
[   44.875802][  T819]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   44.875804][  T819]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   44.875807][  T819]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   44.875809][  T819]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   44.875813][  T819]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   44.875816][  T819]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   44.875818][  T819]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   44.875821][  T819]  ? netdev_notice (net/core/dev.c:13194)
[   44.875823][  T819]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   44.875826][  T819]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   44.875829][  T819]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   44.875832][  T819]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   44.875835][  T819]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   44.875837][  T819]  ? register_netdev (net/core/dev.c:11618)
[   44.875838][  T819]  ? 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))
[   44.875843][  T819]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   44.875846][  T819]  ? __kernel_text_address (kernel/extable.c:79)
[   44.875848][  T819]  ? write_profile (profile.c:?)
[   44.875852][  T819]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   44.875858][  T819]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   44.875862][  T819]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   44.875864][  T819]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   44.875865][  T819]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   44.875867][  T819]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   44.875870][  T819]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   44.875872][  T819]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   44.875873][  T819]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   44.875876][  T819]  ? kasan_save_stack (mm/kasan/common.c:58)
[   44.875878][  T819]  ? kasan_save_stack (mm/kasan/common.c:57)
[   44.875879][  T819]  ? kasan_save_track (mm/kasan/common.c:78)
[   44.875880][  T819]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   44.875882][  T819]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   44.875884][  T819]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   44.875887][  T819]  ? ___sys_sendmsg (net/socket.c:2758)
[   44.875891][  T819]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   44.875893][  T819]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   44.875895][  T819]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   44.875897][  T819]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   44.875898][  T819]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   44.875899][  T819]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   44.875901][  T819]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   44.875903][  T819]  ? __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)
[   44.875905][  T819]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   44.875907][  T819]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   44.875910][  T819]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   44.875911][  T819]  ? nla_get_range_signed (lib/nlattr.c:270)
[   44.875916][  T819]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   44.875918][  T819]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   44.875923][  T819]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   44.875928][  T819]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   44.875930][  T819]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   44.875934][  T819]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   44.875936][  T819]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   44.875938][  T819]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   44.875940][  T819]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   44.875944][  T819]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   44.875946][  T819]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   44.875949][  T819]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   44.875950][  T819]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   44.875954][  T819]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   44.875956][  T819]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   44.875963][  T819]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   44.875967][  T819]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   44.875970][  T819]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   44.875976][  T819]  ? 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))
[   44.875978][  T819]  ? 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))
[   44.875983][  T819]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   44.875987][  T819]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   44.875989][  T819]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   44.875993][  T819]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   44.875997][  T819]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   44.876001][  T819]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   44.876003][  T819]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   44.876008][  T819]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   44.876011][  T819]  ____sys_sendmsg (net/socket.c:2713)
[   44.876013][  T819]  ? copy_msghdr_from_user (net/socket.c:2650)
[   44.876015][  T819]  ? sock_write_iter (net/socket.c:1269)
[   44.876017][  T819]  ? move_addr_to_kernel (net/socket.c:258)
[   44.876024][  T819]  ___sys_sendmsg (net/socket.c:2767)
[   44.876027][  T819]  ? copy_msghdr_from_user (net/socket.c:2619)
[   44.876042][  T819]  __sys_sendmsg (net/socket.c:2799)
[   44.876048][  T819]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   44.876055][  T819]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   44.876058][  T819]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   44.876061][  T819]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   44.876064][  T819]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   44.876066][  T819] RIP: 0033:0x7fea71c4454e
[   44.876070][  T819] 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
[   44.876071][  T819] RSP: 002b:00007ffe9b3bbca0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   44.876074][  T819] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fea71c4454e
[   44.876076][  T819] RDX: 0000000000000000 RSI: 00007ffe9b3bbd50 RDI: 0000000000000005
[   44.876076][  T819] RBP: 00007ffe9b3bbcb0 R08: 0000000000000000 R09: 0000000000000000
[   44.876077][  T819] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91aef7
[   44.876078][  T819] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffe9b3bc410
| [   52.863511][  T921] softirqs last disabled at (31716): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   52.863514][  T921] Preemption disabled at:
| [   52.863515][  T921] vprintk_emit (kernel/printk/printk.c:2471)
| [   52.863523][  T921] Tainted: [W]=WARN
[   52.863524][  T921] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   52.863525][  T921] Call Trace:
[   52.863527][  T921]  <TASK>
[   52.863528][  T921]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   52.863534][  T921]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   52.863536][  T921]  __might_resched.cold (kernel/sched/core.c:9234)
[   52.863540][  T921]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   52.863544][  T921]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   52.863548][  T921]  __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))
[   52.863550][  T921]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   52.863557][  T921]  ? 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)
[   52.863559][  T921]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   52.863563][  T921]  put_chars (drivers/char/virtio_console.c:1176)
[   52.863566][  T921]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   52.863572][  T921]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   52.863579][  T921]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   52.863582][  T921]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   52.863587][  T921]  console_emit_next_record (kernel/printk/printk.c:3183)
[   52.863591][  T921]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   52.863592][  T921]  ? 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))
[   52.863595][  T921]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   52.863598][  T921]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   52.863602][  T921]  console_flush_one_record (kernel/printk/printk.c:3268)
[   52.863606][  T921]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   52.863608][  T921]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   52.863613][  T921]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   52.863616][  T921]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   52.863618][  T921]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   52.863619][  T921]  ? 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)
[   52.863623][  T921]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   52.863625][  T921]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   52.863627][  T921]  vprintk_emit (kernel/printk/printk.c:2479)
[   52.863630][  T921]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   52.863633][  T921]  ? _mutex_trylock_nest_lock (kernel/locking/mutex.c:1227 (discriminator 6))
[   52.863638][  T921]  _printk (kernel/printk/printk.c:2504)
[   52.863642][  T921]  ? snapshot_read.cold (user.c:?)
[   52.863643][  T921]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   52.863646][  T921]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   52.863648][  T921]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   52.863650][  T921]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   52.863654][  T921]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   52.863657][  T921]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   52.863659][  T921]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   52.863662][  T921]  ? netdev_notice (net/core/dev.c:13194)
[   52.863665][  T921]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   52.863668][  T921]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   52.863670][  T921]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   52.863674][  T921]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   52.863676][  T921]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   52.863678][  T921]  ? register_netdev (net/core/dev.c:11618)
[   52.863679][  T921]  ? 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))
[   52.863684][  T921]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   52.863687][  T921]  ? __kernel_text_address (kernel/extable.c:79)
[   52.863690][  T921]  ? write_profile (profile.c:?)
[   52.863694][  T921]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   52.863699][  T921]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   52.863703][  T921]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   52.863705][  T921]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   52.863706][  T921]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   52.863708][  T921]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   52.863711][  T921]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   52.863713][  T921]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   52.863715][  T921]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   52.863717][  T921]  ? kasan_save_stack (mm/kasan/common.c:58)
[   52.863719][  T921]  ? kasan_save_stack (mm/kasan/common.c:57)
[   52.863720][  T921]  ? kasan_save_track (mm/kasan/common.c:78)
[   52.863721][  T921]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   52.863723][  T921]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   52.863725][  T921]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   52.863728][  T921]  ? ___sys_sendmsg (net/socket.c:2758)
[   52.863732][  T921]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   52.863733][  T921]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   52.863736][  T921]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   52.863738][  T921]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   52.863739][  T921]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   52.863740][  T921]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   52.863742][  T921]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   52.863744][  T921]  ? __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)
[   52.863746][  T921]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   52.863747][  T921]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   52.863751][  T921]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   52.863752][  T921]  ? nla_get_range_signed (lib/nlattr.c:270)
[   52.863757][  T921]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   52.863759][  T921]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   52.863764][  T921]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   52.863769][  T921]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   52.863771][  T921]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   52.863776][  T921]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   52.863777][  T921]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   52.863779][  T921]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   52.863781][  T921]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   52.863785][  T921]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   52.863787][  T921]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   52.863790][  T921]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   52.863791][  T921]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   52.863795][  T921]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   52.863797][  T921]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   52.863801][  T921]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   52.863804][  T921]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   52.863807][  T921]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   52.863813][  T921]  ? 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))
[   52.863815][  T921]  ? 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))
[   52.863819][  T921]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   52.863823][  T921]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   52.863826][  T921]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   52.863830][  T921]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   52.863834][  T921]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   52.863837][  T921]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   52.863839][  T921]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   52.863844][  T921]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   52.863847][  T921]  ____sys_sendmsg (net/socket.c:2713)
[   52.863849][  T921]  ? copy_msghdr_from_user (net/socket.c:2650)
[   52.863851][  T921]  ? sock_write_iter (net/socket.c:1269)
[   52.863853][  T921]  ? move_addr_to_kernel (net/socket.c:258)
[   52.863860][  T921]  ___sys_sendmsg (net/socket.c:2767)
[   52.863863][  T921]  ? copy_msghdr_from_user (net/socket.c:2619)
[   52.863878][  T921]  __sys_sendmsg (net/socket.c:2799)
[   52.863881][  T921]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   52.863887][  T921]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   52.863890][  T921]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   52.863893][  T921]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   52.863896][  T921]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   52.863898][  T921] RIP: 0033:0x7f7be62b454e
[   52.863902][  T921] 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
[   52.863904][  T921] RSP: 002b:00007fff3ba3ee20 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   52.863906][  T921] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007f7be62b454e
[   52.863908][  T921] RDX: 0000000000000000 RSI: 00007fff3ba3eed0 RDI: 0000000000000005
[   52.863909][  T921] RBP: 00007fff3ba3ee30 R08: 0000000000000000 R09: 0000000000000000
[   52.863909][  T921] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91aeff
[   52.863910][  T921] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fff3ba3f590
| [   60.988088][ T1030] softirqs last disabled at (39484): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   60.988091][ T1030] Preemption disabled at:
| [   60.988092][ T1030] vprintk_emit (kernel/printk/printk.c:2471)
| [   60.988101][ T1030] Tainted: [W]=WARN
[   60.988102][ T1030] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   60.988104][ T1030] Call Trace:
[   60.988106][ T1030]  <TASK>
[   60.988108][ T1030]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   60.988114][ T1030]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   60.988116][ T1030]  __might_resched.cold (kernel/sched/core.c:9234)
[   60.988120][ T1030]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   60.988124][ T1030]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   60.988129][ T1030]  __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))
[   60.988131][ T1030]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   60.988137][ T1030]  ? 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)
[   60.988140][ T1030]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   60.988144][ T1030]  put_chars (drivers/char/virtio_console.c:1176)
[   60.988146][ T1030]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   60.988153][ T1030]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   60.988161][ T1030]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   60.988164][ T1030]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   60.988168][ T1030]  console_emit_next_record (kernel/printk/printk.c:3183)
[   60.988172][ T1030]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   60.988174][ T1030]  ? 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))
[   60.988178][ T1030]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   60.988180][ T1030]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   60.988184][ T1030]  console_flush_one_record (kernel/printk/printk.c:3268)
[   60.988189][ T1030]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   60.988190][ T1030]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   60.988196][ T1030]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   60.988199][ T1030]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   60.988201][ T1030]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   60.988202][ T1030]  ? 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)
[   60.988206][ T1030]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   60.988208][ T1030]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   60.988211][ T1030]  vprintk_emit (kernel/printk/printk.c:2479)
[   60.988214][ T1030]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   60.988217][ T1030]  ? _mutex_trylock_nest_lock (kernel/locking/mutex.c:1227 (discriminator 6))
[   60.988222][ T1030]  _printk (kernel/printk/printk.c:2504)
[   60.988226][ T1030]  ? snapshot_read.cold (user.c:?)
[   60.988228][ T1030]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   60.988230][ T1030]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   60.988233][ T1030]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   60.988236][ T1030]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   60.988239][ T1030]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   60.988242][ T1030]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   60.988244][ T1030]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   60.988247][ T1030]  ? netdev_notice (net/core/dev.c:13194)
[   60.988250][ T1030]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   60.988253][ T1030]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   60.988256][ T1030]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   60.988259][ T1030]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   60.988261][ T1030]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   60.988264][ T1030]  ? register_netdev (net/core/dev.c:11618)
[   60.988265][ T1030]  ? 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))
[   60.988270][ T1030]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   60.988273][ T1030]  ? __kernel_text_address (kernel/extable.c:79)
[   60.988275][ T1030]  ? write_profile (profile.c:?)
[   60.988279][ T1030]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   60.988285][ T1030]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   60.988289][ T1030]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   60.988291][ T1030]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   60.988292][ T1030]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   60.988294][ T1030]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   60.988298][ T1030]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   60.988300][ T1030]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   60.988301][ T1030]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   60.988304][ T1030]  ? kasan_save_stack (mm/kasan/common.c:58)
[   60.988306][ T1030]  ? kasan_save_stack (mm/kasan/common.c:57)
[   60.988307][ T1030]  ? kasan_save_track (mm/kasan/common.c:78)
[   60.988308][ T1030]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   60.988311][ T1030]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   60.988312][ T1030]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   60.988315][ T1030]  ? ___sys_sendmsg (net/socket.c:2758)
[   60.988319][ T1030]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   60.988321][ T1030]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   60.988324][ T1030]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   60.988325][ T1030]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   60.988327][ T1030]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   60.988328][ T1030]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   60.988330][ T1030]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   60.988332][ T1030]  ? __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)
[   60.988334][ T1030]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   60.988336][ T1030]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   60.988339][ T1030]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   60.988340][ T1030]  ? nla_get_range_signed (lib/nlattr.c:270)
[   60.988345][ T1030]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   60.988347][ T1030]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   60.988353][ T1030]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   60.988358][ T1030]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   60.988360][ T1030]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   60.988364][ T1030]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   60.988366][ T1030]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   60.988368][ T1030]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   60.988370][ T1030]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   60.988374][ T1030]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   60.988376][ T1030]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   60.988379][ T1030]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   60.988381][ T1030]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   60.988385][ T1030]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   60.988387][ T1030]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   60.988391][ T1030]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   60.988394][ T1030]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   60.988397][ T1030]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   60.988404][ T1030]  ? 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))
[   60.988406][ T1030]  ? 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))
[   60.988411][ T1030]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   60.988415][ T1030]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   60.988417][ T1030]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   60.988422][ T1030]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   60.988426][ T1030]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   60.988430][ T1030]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   60.988431][ T1030]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   60.988437][ T1030]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   60.988440][ T1030]  ____sys_sendmsg (net/socket.c:2713)
[   60.988442][ T1030]  ? copy_msghdr_from_user (net/socket.c:2650)
[   60.988445][ T1030]  ? sock_write_iter (net/socket.c:1269)
[   60.988446][ T1030]  ? move_addr_to_kernel (net/socket.c:258)
[   60.988454][ T1030]  ___sys_sendmsg (net/socket.c:2767)
[   60.988457][ T1030]  ? copy_msghdr_from_user (net/socket.c:2619)
[   60.988473][ T1030]  __sys_sendmsg (net/socket.c:2799)
[   60.988476][ T1030]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   60.988482][ T1030]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   60.988485][ T1030]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   60.988489][ T1030]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   60.988492][ T1030]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   60.988494][ T1030] RIP: 0033:0x7f5b51d5f54e
[   60.988498][ T1030] 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
[   60.988500][ T1030] RSP: 002b:00007fffb62dddb0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   60.988506][ T1030] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007f5b51d5f54e
[   60.988508][ T1030] RDX: 0000000000000000 RSI: 00007fffb62dde60 RDI: 0000000000000005
[   60.988509][ T1030] RBP: 00007fffb62dddc0 R08: 0000000000000000 R09: 0000000000000000
[   60.988509][ T1030] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91af07
[   60.988510][ T1030] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fffb62de520
| [   67.188680][ T1092] softirqs last disabled at (42530): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   67.188684][ T1092] Preemption disabled at:
| [   67.188685][ T1092] vprintk_emit (kernel/printk/printk.c:2471)
| [   67.188697][ T1092] Tainted: [W]=WARN
[   67.188698][ T1092] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   67.188700][ T1092] Call Trace:
[   67.188702][ T1092]  <TASK>
[   67.188704][ T1092]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   67.188712][ T1092]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   67.188715][ T1092]  __might_resched.cold (kernel/sched/core.c:9234)
[   67.188721][ T1092]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   67.188727][ T1092]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   67.188734][ T1092]  __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))
[   67.188737][ T1092]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   67.188746][ T1092]  ? 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)
[   67.188750][ T1092]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   67.188756][ T1092]  put_chars (drivers/char/virtio_console.c:1176)
[   67.188760][ T1092]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   67.188772][ T1092]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   67.188784][ T1092]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   67.188789][ T1092]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   67.188797][ T1092]  console_emit_next_record (kernel/printk/printk.c:3183)
[   67.188804][ T1092]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   67.188806][ T1092]  ? 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))
[   67.188812][ T1092]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   67.188816][ T1092]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   67.188823][ T1092]  console_flush_one_record (kernel/printk/printk.c:3268)
[   67.188830][ T1092]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   67.188833][ T1092]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   67.188842][ T1092]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   67.188847][ T1092]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   67.188850][ T1092]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   67.188853][ T1092]  ? 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)
[   67.188859][ T1092]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   67.188862][ T1092]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   67.188867][ T1092]  vprintk_emit (kernel/printk/printk.c:2479)
[   67.188872][ T1092]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   67.188876][ T1092]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   67.188879][ T1092]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   67.188881][ T1092]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   67.188888][ T1092]  _printk (kernel/printk/printk.c:2504)
[   67.188893][ T1092]  ? snapshot_read.cold (user.c:?)
[   67.188896][ T1092]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   67.188901][ T1092]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   67.188905][ T1092]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   67.188908][ T1092]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   67.188913][ T1092]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   67.188918][ T1092]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   67.188922][ T1092]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   67.188926][ T1092]  ? netdev_notice (net/core/dev.c:13194)
[   67.188931][ T1092]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   67.188935][ T1092]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   67.188940][ T1092]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   67.188946][ T1092]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   67.188949][ T1092]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   67.188954][ T1092]  ? netif_set_mtu_ext (net/core/dev.c:2350 net/core/dev.c:9952)
[   67.188965][ T1092]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   67.188973][ T1092]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   67.188982][ T1092]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   67.188988][ T1092]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   67.188993][ T1092]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   67.188995][ T1092]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   67.188998][ T1092]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   67.189003][ T1092]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   67.189007][ T1092]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   67.189010][ T1092]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   67.189014][ T1092]  ? kasan_save_stack (mm/kasan/common.c:58)
[   67.189017][ T1092]  ? kasan_save_stack (mm/kasan/common.c:57)
[   67.189018][ T1092]  ? kasan_save_track (mm/kasan/common.c:78)
[   67.189021][ T1092]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   67.189025][ T1092]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   67.189028][ T1092]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   67.189032][ T1092]  ? ___sys_sendmsg (net/socket.c:2758)
[   67.189038][ T1092]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   67.189041][ T1092]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   67.189046][ T1092]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   67.189049][ T1092]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   67.189051][ T1092]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   67.189053][ T1092]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   67.189056][ T1092]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   67.189060][ T1092]  ? __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)
[   67.189063][ T1092]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   67.189067][ T1092]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   67.189073][ T1092]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   67.189075][ T1092]  ? nla_get_range_signed (lib/nlattr.c:270)
[   67.189083][ T1092]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   67.189087][ T1092]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   67.189101][ T1092]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   67.189111][ T1092]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   67.189114][ T1092]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   67.189122][ T1092]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   67.189126][ T1092]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   67.189129][ T1092]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   67.189132][ T1092]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   67.189139][ T1092]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   67.189143][ T1092]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   67.189148][ T1092]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   67.189150][ T1092]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   67.189158][ T1092]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   67.189161][ T1092]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   67.189168][ T1092]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   67.189172][ T1092]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   67.189177][ T1092]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   67.189189][ T1092]  ? 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))
[   67.189192][ T1092]  ? 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))
[   67.189200][ T1092]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   67.189207][ T1092]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   67.189211][ T1092]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   67.189220][ T1092]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   67.189227][ T1092]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   67.189233][ T1092]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   67.189236][ T1092]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   67.189245][ T1092]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   67.189249][ T1092]  ____sys_sendmsg (net/socket.c:2713)
[   67.189253][ T1092]  ? copy_msghdr_from_user (net/socket.c:2650)
[   67.189257][ T1092]  ? sock_write_iter (net/socket.c:1269)
[   67.189259][ T1092]  ? move_addr_to_kernel (net/socket.c:258)
[   67.189273][ T1092]  ___sys_sendmsg (net/socket.c:2767)
[   67.189278][ T1092]  ? copy_msghdr_from_user (net/socket.c:2619)
[   67.189308][ T1092]  __sys_sendmsg (net/socket.c:2799)
[   67.189313][ T1092]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   67.189324][ T1092]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   67.189330][ T1092]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   67.189334][ T1092]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   67.189339][ T1092]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   67.189342][ T1092] RIP: 0033:0x7f65582ad54e
[   67.189347][ T1092] 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
[   67.189349][ T1092] RSP: 002b:00007ffc8407b1a0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   67.189353][ T1092] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007f65582ad54e
[   67.189355][ T1092] RDX: 0000000000000000 RSI: 00007ffc8407b250 RDI: 0000000000000005
[   67.189357][ T1092] RBP: 00007ffc8407b1b0 R08: 0000000000000000 R09: 0000000000000000
[   67.189358][ T1092] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91af0d
[   67.189359][ T1092] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffc8407b910
| [   68.443339][ T1141] softirqs last disabled at (31306): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   68.443341][ T1141] Preemption disabled at:
| [   68.443342][ T1141] vprintk_emit (kernel/printk/printk.c:2471)
| [   68.443351][ T1141] Tainted: [W]=WARN
[   68.443352][ T1141] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   68.443353][ T1141] Call Trace:
[   68.443355][ T1141]  <TASK>
[   68.443357][ T1141]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   68.443363][ T1141]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   68.443364][ T1141]  __might_resched.cold (kernel/sched/core.c:9234)
[   68.443369][ T1141]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   68.443373][ T1141]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   68.443377][ T1141]  __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))
[   68.443379][ T1141]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   68.443386][ T1141]  ? 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)
[   68.443388][ T1141]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   68.443392][ T1141]  put_chars (drivers/char/virtio_console.c:1176)
[   68.443395][ T1141]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   68.443401][ T1141]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   68.443408][ T1141]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   68.443412][ T1141]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   68.443416][ T1141]  console_emit_next_record (kernel/printk/printk.c:3183)
[   68.443421][ T1141]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   68.443424][ T1141]  ? 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))
[   68.443428][ T1141]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   68.443431][ T1141]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   68.443435][ T1141]  console_flush_one_record (kernel/printk/printk.c:3268)
[   68.443439][ T1141]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   68.443441][ T1141]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   68.443446][ T1141]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   68.443449][ T1141]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   68.443451][ T1141]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   68.443453][ T1141]  ? 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)
[   68.443457][ T1141]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   68.443458][ T1141]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   68.443461][ T1141]  vprintk_emit (kernel/printk/printk.c:2479)
[   68.443464][ T1141]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   68.443466][ T1141]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   68.443468][ T1141]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   68.443470][ T1141]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   68.443473][ T1141]  _printk (kernel/printk/printk.c:2504)
[   68.443477][ T1141]  ? snapshot_read.cold (user.c:?)
[   68.443479][ T1141]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   68.443481][ T1141]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   68.443484][ T1141]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   68.443486][ T1141]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   68.443490][ T1141]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   68.443493][ T1141]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   68.443495][ T1141]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   68.443498][ T1141]  ? netdev_notice (net/core/dev.c:13194)
[   68.443501][ T1141]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   68.443503][ T1141]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   68.443506][ T1141]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   68.443509][ T1141]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   68.443511][ T1141]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   68.443514][ T1141]  ? netif_set_mtu_ext (net/core/dev.c:2350 net/core/dev.c:9952)
[   68.443518][ T1141]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   68.443522][ T1141]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   68.443527][ T1141]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   68.443531][ T1141]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   68.443534][ T1141]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   68.443536][ T1141]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   68.443538][ T1141]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   68.443541][ T1141]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   68.443543][ T1141]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   68.443545][ T1141]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   68.443547][ T1141]  ? kasan_save_stack (mm/kasan/common.c:58)
[   68.443549][ T1141]  ? kasan_save_stack (mm/kasan/common.c:57)
[   68.443550][ T1141]  ? kasan_save_track (mm/kasan/common.c:78)
[   68.443551][ T1141]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   68.443553][ T1141]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   68.443555][ T1141]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   68.443558][ T1141]  ? ___sys_sendmsg (net/socket.c:2758)
[   68.443562][ T1141]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   68.443564][ T1141]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   68.443567][ T1141]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   68.443570][ T1141]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   68.443572][ T1141]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   68.443574][ T1141]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   68.443576][ T1141]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   68.443578][ T1141]  ? __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)
[   68.443581][ T1141]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   68.443583][ T1141]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   68.443586][ T1141]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   68.443588][ T1141]  ? nla_get_range_signed (lib/nlattr.c:270)
[   68.443593][ T1141]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   68.443595][ T1141]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   68.443600][ T1141]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   68.443606][ T1141]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   68.443608][ T1141]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   68.443612][ T1141]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   68.443614][ T1141]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   68.443616][ T1141]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   68.443618][ T1141]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   68.443621][ T1141]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   68.443623][ T1141]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   68.443626][ T1141]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   68.443628][ T1141]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   68.443632][ T1141]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   68.443634][ T1141]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   68.443637][ T1141]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   68.443641][ T1141]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   68.443644][ T1141]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   68.443650][ T1141]  ? 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))
[   68.443652][ T1141]  ? 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))
[   68.443656][ T1141]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   68.443660][ T1141]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   68.443663][ T1141]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   68.443667][ T1141]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   68.443671][ T1141]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   68.443675][ T1141]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   68.443676][ T1141]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   68.443682][ T1141]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   68.443684][ T1141]  ____sys_sendmsg (net/socket.c:2713)
[   68.443687][ T1141]  ? copy_msghdr_from_user (net/socket.c:2650)
[   68.443689][ T1141]  ? sock_write_iter (net/socket.c:1269)
[   68.443690][ T1141]  ? move_addr_to_kernel (net/socket.c:258)
[   68.443698][ T1141]  ___sys_sendmsg (net/socket.c:2767)
[   68.443701][ T1141]  ? copy_msghdr_from_user (net/socket.c:2619)
[   68.443720][ T1141]  __sys_sendmsg (net/socket.c:2799)
[   68.443723][ T1141]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   68.443729][ T1141]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   68.443732][ T1141]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   68.443735][ T1141]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   68.443738][ T1141]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   68.443741][ T1141] RIP: 0033:0x7f473fab454e
[   68.443744][ T1141] 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
[   68.443746][ T1141] RSP: 002b:00007fff0b956e30 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   68.443749][ T1141] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007f473fab454e
[   68.443750][ T1141] RDX: 0000000000000000 RSI: 00007fff0b956ee0 RDI: 0000000000000005
[   68.443751][ T1141] RBP: 00007fff0b956e40 R08: 0000000000000000 R09: 0000000000000000
[   68.443752][ T1141] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91af0e
[   68.443753][ T1141] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fff0b9575a0
| [   69.701801][ T1190] softirqs last disabled at (40182): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   69.701804][ T1190] Preemption disabled at:
| [   69.701805][ T1190] vprintk_emit (kernel/printk/printk.c:2471)
| [   69.701813][ T1190] Tainted: [W]=WARN
[   69.701814][ T1190] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   69.701816][ T1190] Call Trace:
[   69.701817][ T1190]  <TASK>
[   69.701819][ T1190]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   69.701825][ T1190]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   69.701827][ T1190]  __might_resched.cold (kernel/sched/core.c:9234)
[   69.701831][ T1190]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   69.701835][ T1190]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   69.701840][ T1190]  __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))
[   69.701841][ T1190]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   69.701848][ T1190]  ? 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)
[   69.701851][ T1190]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   69.701855][ T1190]  put_chars (drivers/char/virtio_console.c:1176)
[   69.701857][ T1190]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   69.701863][ T1190]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   69.701871][ T1190]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   69.701874][ T1190]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   69.701879][ T1190]  console_emit_next_record (kernel/printk/printk.c:3183)
[   69.701883][ T1190]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   69.701885][ T1190]  ? 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))
[   69.701888][ T1190]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   69.701891][ T1190]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   69.701895][ T1190]  console_flush_one_record (kernel/printk/printk.c:3268)
[   69.701899][ T1190]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   69.701901][ T1190]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   69.701907][ T1190]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   69.701910][ T1190]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   69.701912][ T1190]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   69.701913][ T1190]  ? 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)
[   69.701917][ T1190]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   69.701919][ T1190]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   69.701921][ T1190]  vprintk_emit (kernel/printk/printk.c:2479)
[   69.701925][ T1190]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   69.701927][ T1190]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   69.701929][ T1190]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   69.701930][ T1190]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   69.701934][ T1190]  _printk (kernel/printk/printk.c:2504)
[   69.701938][ T1190]  ? snapshot_read.cold (user.c:?)
[   69.701939][ T1190]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   69.701942][ T1190]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   69.701945][ T1190]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   69.701947][ T1190]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   69.701951][ T1190]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   69.701953][ T1190]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   69.701956][ T1190]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   69.701959][ T1190]  ? netdev_notice (net/core/dev.c:13194)
[   69.701964][ T1190]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   69.701967][ T1190]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   69.701970][ T1190]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   69.701973][ T1190]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   69.701975][ T1190]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   69.701978][ T1190]  ? netif_set_mtu_ext (net/core/dev.c:2350 net/core/dev.c:9952)
[   69.701982][ T1190]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   69.701986][ T1190]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   69.701992][ T1190]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   69.701995][ T1190]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   69.701999][ T1190]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   69.702000][ T1190]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   69.702002][ T1190]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   69.702005][ T1190]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   69.702007][ T1190]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   69.702009][ T1190]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   69.702012][ T1190]  ? kasan_save_stack (mm/kasan/common.c:58)
[   69.702013][ T1190]  ? kasan_save_stack (mm/kasan/common.c:57)
[   69.702015][ T1190]  ? kasan_save_track (mm/kasan/common.c:78)
[   69.702016][ T1190]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   69.702018][ T1190]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   69.702020][ T1190]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   69.702023][ T1190]  ? ___sys_sendmsg (net/socket.c:2758)
[   69.702027][ T1190]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   69.702029][ T1190]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   69.702031][ T1190]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   69.702033][ T1190]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   69.702035][ T1190]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   69.702036][ T1190]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   69.702037][ T1190]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   69.702040][ T1190]  ? __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)
[   69.702042][ T1190]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   69.702044][ T1190]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   69.702048][ T1190]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   69.702049][ T1190]  ? nla_get_range_signed (lib/nlattr.c:270)
[   69.702054][ T1190]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   69.702056][ T1190]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   69.702062][ T1190]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   69.702067][ T1190]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   69.702069][ T1190]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   69.702073][ T1190]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   69.702075][ T1190]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   69.702077][ T1190]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   69.702079][ T1190]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   69.702082][ T1190]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   69.702084][ T1190]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   69.702087][ T1190]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   69.702089][ T1190]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   69.702093][ T1190]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   69.702095][ T1190]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   69.702104][ T1190]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   69.702108][ T1190]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   69.702111][ T1190]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   69.702117][ T1190]  ? 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))
[   69.702119][ T1190]  ? 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))
[   69.702124][ T1190]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   69.702128][ T1190]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   69.702130][ T1190]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   69.702134][ T1190]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   69.702138][ T1190]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   69.702142][ T1190]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   69.702144][ T1190]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   69.702149][ T1190]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   69.702152][ T1190]  ____sys_sendmsg (net/socket.c:2713)
[   69.702154][ T1190]  ? copy_msghdr_from_user (net/socket.c:2650)
[   69.702157][ T1190]  ? sock_write_iter (net/socket.c:1269)
[   69.702158][ T1190]  ? move_addr_to_kernel (net/socket.c:258)
[   69.702165][ T1190]  ___sys_sendmsg (net/socket.c:2767)
[   69.702168][ T1190]  ? copy_msghdr_from_user (net/socket.c:2619)
[   69.702184][ T1190]  __sys_sendmsg (net/socket.c:2799)
[   69.702187][ T1190]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   69.702193][ T1190]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   69.702196][ T1190]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   69.702199][ T1190]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   69.702201][ T1190]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   69.702204][ T1190] RIP: 0033:0x7f9fdfd2954e
[   69.702207][ T1190] 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
[   69.702209][ T1190] RSP: 002b:00007ffee1b94690 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   69.702211][ T1190] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007f9fdfd2954e
[   69.702213][ T1190] RDX: 0000000000000000 RSI: 00007ffee1b94740 RDI: 0000000000000005
[   69.702214][ T1190] RBP: 00007ffee1b946a0 R08: 0000000000000000 R09: 0000000000000000
[   69.702214][ T1190] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91af10
[   69.702215][ T1190] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffee1b94e00
| [   71.099862][ T1239] softirqs last disabled at (34272): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   71.099865][ T1239] Preemption disabled at:
| [   71.099865][ T1239] vprintk_emit (kernel/printk/printk.c:2471)
| [   71.099874][ T1239] Tainted: [W]=WARN
[   71.099875][ T1239] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   71.099877][ T1239] Call Trace:
[   71.099878][ T1239]  <TASK>
[   71.099880][ T1239]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   71.099886][ T1239]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   71.099888][ T1239]  __might_resched.cold (kernel/sched/core.c:9234)
[   71.099892][ T1239]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   71.099896][ T1239]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   71.099901][ T1239]  __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))
[   71.099903][ T1239]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   71.099910][ T1239]  ? 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)
[   71.099913][ T1239]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   71.099916][ T1239]  put_chars (drivers/char/virtio_console.c:1176)
[   71.099919][ T1239]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   71.099925][ T1239]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   71.099933][ T1239]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   71.099936][ T1239]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   71.099941][ T1239]  console_emit_next_record (kernel/printk/printk.c:3183)
[   71.099945][ T1239]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   71.099946][ T1239]  ? 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))
[   71.099950][ T1239]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   71.099952][ T1239]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   71.099956][ T1239]  console_flush_one_record (kernel/printk/printk.c:3268)
[   71.099963][ T1239]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   71.099965][ T1239]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   71.099970][ T1239]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   71.099973][ T1239]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   71.099975][ T1239]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   71.099977][ T1239]  ? 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)
[   71.099980][ T1239]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   71.099982][ T1239]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   71.099985][ T1239]  vprintk_emit (kernel/printk/printk.c:2479)
[   71.099988][ T1239]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   71.099990][ T1239]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   71.099992][ T1239]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   71.099994][ T1239]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   71.099997][ T1239]  _printk (kernel/printk/printk.c:2504)
[   71.100001][ T1239]  ? snapshot_read.cold (user.c:?)
[   71.100003][ T1239]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   71.100005][ T1239]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   71.100008][ T1239]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   71.100010][ T1239]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   71.100014][ T1239]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   71.100017][ T1239]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   71.100019][ T1239]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   71.100022][ T1239]  ? netdev_notice (net/core/dev.c:13194)
[   71.100025][ T1239]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   71.100028][ T1239]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   71.100030][ T1239]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   71.100033][ T1239]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   71.100035][ T1239]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   71.100038][ T1239]  ? netif_set_mtu_ext (net/core/dev.c:2350 net/core/dev.c:9952)
[   71.100042][ T1239]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   71.100047][ T1239]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   71.100052][ T1239]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   71.100056][ T1239]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   71.100059][ T1239]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   71.100061][ T1239]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   71.100062][ T1239]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   71.100066][ T1239]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   71.100068][ T1239]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   71.100070][ T1239]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   71.100072][ T1239]  ? kasan_save_stack (mm/kasan/common.c:58)
[   71.100074][ T1239]  ? kasan_save_stack (mm/kasan/common.c:57)
[   71.100075][ T1239]  ? kasan_save_track (mm/kasan/common.c:78)
[   71.100076][ T1239]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   71.100078][ T1239]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   71.100080][ T1239]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   71.100083][ T1239]  ? ___sys_sendmsg (net/socket.c:2758)
[   71.100087][ T1239]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   71.100089][ T1239]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   71.100091][ T1239]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   71.100093][ T1239]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   71.100095][ T1239]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   71.100096][ T1239]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   71.100097][ T1239]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   71.100100][ T1239]  ? __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)
[   71.100109][ T1239]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   71.100111][ T1239]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   71.100114][ T1239]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   71.100115][ T1239]  ? nla_get_range_signed (lib/nlattr.c:270)
[   71.100120][ T1239]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   71.100122][ T1239]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   71.100127][ T1239]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   71.100133][ T1239]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   71.100134][ T1239]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   71.100139][ T1239]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   71.100141][ T1239]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   71.100143][ T1239]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   71.100145][ T1239]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   71.100148][ T1239]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   71.100150][ T1239]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   71.100153][ T1239]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   71.100155][ T1239]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   71.100159][ T1239]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   71.100161][ T1239]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   71.100164][ T1239]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   71.100168][ T1239]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   71.100171][ T1239]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   71.100177][ T1239]  ? 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))
[   71.100179][ T1239]  ? 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))
[   71.100184][ T1239]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   71.100187][ T1239]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   71.100190][ T1239]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   71.100194][ T1239]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   71.100198][ T1239]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   71.100202][ T1239]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   71.100203][ T1239]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   71.100209][ T1239]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   71.100212][ T1239]  ____sys_sendmsg (net/socket.c:2713)
[   71.100214][ T1239]  ? copy_msghdr_from_user (net/socket.c:2650)
[   71.100216][ T1239]  ? sock_write_iter (net/socket.c:1269)
[   71.100218][ T1239]  ? move_addr_to_kernel (net/socket.c:258)
[   71.100226][ T1239]  ___sys_sendmsg (net/socket.c:2767)
[   71.100229][ T1239]  ? copy_msghdr_from_user (net/socket.c:2619)
[   71.100244][ T1239]  __sys_sendmsg (net/socket.c:2799)
[   71.100247][ T1239]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   71.100253][ T1239]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   71.100256][ T1239]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   71.100259][ T1239]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   71.100262][ T1239]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   71.100264][ T1239] RIP: 0033:0x7fe41209854e
[   71.100268][ T1239] 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
[   71.100270][ T1239] RSP: 002b:00007ffe031b4640 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   71.100273][ T1239] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007fe41209854e
[   71.100274][ T1239] RDX: 0000000000000000 RSI: 00007ffe031b46f0 RDI: 0000000000000005
[   71.100275][ T1239] RBP: 00007ffe031b4650 R08: 0000000000000000 R09: 0000000000000000
[   71.100276][ T1239] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91af11


Finger prints:
netlink_release:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print
br_device_event:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print
netif_change_name:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars