======================================
| [   10.237629][  T187] softirqs last disabled at (39879): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   10.237631][  T187] Preemption disabled at:
| [   10.237632][  T187] 0x0
| [   10.237643][  T187] Tainted: [W]=WARN
[   10.237643][  T187] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.237645][  T187] Call Trace:
[   10.237647][  T187]  <TASK>
[   10.237648][  T187]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   10.237655][  T187]  __might_resched.cold (kernel/sched/core.c:9234)
[   10.237659][  T187]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   10.237663][  T187]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   10.237669][  T187]  __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))
[   10.237671][  T187]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.237677][  T187]  ? 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)
[   10.237679][  T187]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.237682][  T187]  put_chars (drivers/char/virtio_console.c:1176)
[   10.237685][  T187]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   10.237687][  T187]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   10.237692][  T187]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   10.237697][  T187]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   10.237703][  T187]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   10.237705][  T187]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.237708][  T187]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.237712][  T187]  console_emit_next_record (kernel/printk/printk.c:3183)
[   10.237716][  T187]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   10.237718][  T187]  ? 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))
[   10.237721][  T187]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.237723][  T187]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.237727][  T187]  console_flush_one_record (kernel/printk/printk.c:3268)
[   10.237732][  T187]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   10.237734][  T187]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.237739][  T187]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   10.237742][  T187]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   10.237744][  T187]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.237746][  T187]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   10.237750][  T187]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   10.237752][  T187]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   10.237755][  T187]  vprintk_emit (kernel/printk/printk.c:2479)
[   10.237759][  T187]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   10.237763][  T187]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.237766][  T187]  _printk (kernel/printk/printk.c:2504)
[   10.237770][  T187]  ? snapshot_read.cold (user.c:?)
[   10.237773][  T187]  ? 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)
[   10.237776][  T187]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   10.237780][  T187]  ? 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)
[   10.237782][  T187]  do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4))
[   10.237786][  T187]  ? exit_notify (kernel/exit.c:780)
[   10.237788][  T187]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   10.237791][  T187]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.237796][  T187]  do_group_exit (kernel/exit.c:1151)
[   10.237798][  T187]  __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160)
[   10.237800][  T187]  x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232)
[   10.237802][  T187]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   10.237806][  T187]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   10.237809][  T187]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   10.237811][  T187] RIP: 0033:0x7fe77c23c1b8
[   10.237813][  T187] Code: Unable to access opcode bytes at 0x7fe77c23c18e.

Code starting with the faulting instruction
===========================================
[   10.237815][  T187] RSP: 002b:00007ffc14fcf518 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
[   10.237817][  T187] RAX: ffffffffffffffda RBX: 00007fe77c36cf88 RCX: 00007fe77c23c1b8
[   10.237818][  T187] RDX: 00007fe77bf86fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000
[   10.237819][  T187] RBP: 00007ffc14fcf570 R08: 0000000000000000 R09: 0000000000008010
[   10.237820][  T187] R10: 00007ffc14fcf330 R11: 0000000000000246 R12: 0000000000000001
[   10.237821][  T187] R13: 0000000000000000 R14: 00007fe77c36b680 R15: 00007fe77c36cfa0
| [   12.034267][  T264] softirqs last disabled at (18135): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   12.034270][  T264] Preemption disabled at:
| [   12.034271][  T264] 0x0
| [   12.034281][  T264] Tainted: [W]=WARN
[   12.034281][  T264] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.034283][  T264] Call Trace:
[   12.034285][  T264]  <TASK>
[   12.034286][  T264]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   12.034293][  T264]  __might_resched.cold (kernel/sched/core.c:9234)
[   12.034297][  T264]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   12.034302][  T264]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   12.034307][  T264]  __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))
[   12.034311][  T264]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   12.034320][  T264]  ? 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)
[   12.034323][  T264]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   12.034326][  T264]  put_chars (drivers/char/virtio_console.c:1176)
[   12.034329][  T264]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   12.034330][  T264]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   12.034335][  T264]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   12.034340][  T264]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   12.034347][  T264]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   12.034349][  T264]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.034351][  T264]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.034355][  T264]  console_emit_next_record (kernel/printk/printk.c:3183)
[   12.034359][  T264]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   12.034361][  T264]  ? 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))
[   12.034364][  T264]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.034367][  T264]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.034371][  T264]  console_flush_one_record (kernel/printk/printk.c:3268)
[   12.034375][  T264]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   12.034377][  T264]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.034383][  T264]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   12.034386][  T264]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   12.034388][  T264]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.034390][  T264]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   12.034394][  T264]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   12.034396][  T264]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   12.034399][  T264]  vprintk_emit (kernel/printk/printk.c:2479)
[   12.034403][  T264]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   12.034407][  T264]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.034410][  T264]  _printk (kernel/printk/printk.c:2504)
[   12.034414][  T264]  ? snapshot_read.cold (user.c:?)
[   12.034417][  T264]  ? 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)
[   12.034420][  T264]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   12.034424][  T264]  ? 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)
[   12.034427][  T264]  do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4))
[   12.034431][  T264]  ? exit_notify (kernel/exit.c:780)
[   12.034433][  T264]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   12.034435][  T264]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.034440][  T264]  do_group_exit (kernel/exit.c:1151)
[   12.034443][  T264]  __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160)
[   12.034445][  T264]  x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232)
[   12.034447][  T264]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   12.034450][  T264]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   12.034453][  T264]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   12.034456][  T264] RIP: 0033:0x7f21475f81b8
[   12.034458][  T264] Code: Unable to access opcode bytes at 0x7f21475f818e.

Code starting with the faulting instruction
===========================================
[   12.034459][  T264] RSP: 002b:00007ffe4b1fd238 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
[   12.034464][  T264] RAX: ffffffffffffffda RBX: 00007f2147728f88 RCX: 00007f21475f81b8
[   12.034465][  T264] RDX: 00007f2147342fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000
[   12.034466][  T264] RBP: 00007ffe4b1fd290 R08: 0000000000000000 R09: 0000000000000050
[   12.034467][  T264] R10: 00007ffe4b1fd050 R11: 0000000000000246 R12: 0000000000000001
[   12.034468][  T264] R13: 0000000000000000 R14: 00007f2147727680 R15: 00007f2147728fa0
| [   19.365058][  T390] softirqs last disabled at (13327): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   19.365060][  T390] Preemption disabled at:
| [   19.365061][  T390] 0x0
| [   19.365071][  T390] Tainted: [W]=WARN
[   19.365072][  T390] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   19.365074][  T390] Call Trace:
[   19.365076][  T390]  <TASK>
[   19.365077][  T390]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   19.365084][  T390]  __might_resched.cold (kernel/sched/core.c:9234)
[   19.365089][  T390]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   19.365093][  T390]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   19.365099][  T390]  __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))
[   19.365101][  T390]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   19.365107][  T390]  ? 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)
[   19.365110][  T390]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   19.365113][  T390]  put_chars (drivers/char/virtio_console.c:1176)
[   19.365116][  T390]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   19.365117][  T390]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   19.365122][  T390]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   19.365128][  T390]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   19.365134][  T390]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   19.365136][  T390]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   19.365139][  T390]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   19.365143][  T390]  console_emit_next_record (kernel/printk/printk.c:3183)
[   19.365147][  T390]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   19.365149][  T390]  ? 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))
[   19.365152][  T390]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   19.365154][  T390]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   19.365158][  T390]  console_flush_one_record (kernel/printk/printk.c:3268)
[   19.365163][  T390]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   19.365165][  T390]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   19.365170][  T390]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   19.365173][  T390]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   19.365175][  T390]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   19.365177][  T390]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   19.365181][  T390]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   19.365183][  T390]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   19.365186][  T390]  vprintk_emit (kernel/printk/printk.c:2479)
[   19.365190][  T390]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   19.365194][  T390]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   19.365198][  T390]  _printk (kernel/printk/printk.c:2504)
[   19.365202][  T390]  ? snapshot_read.cold (user.c:?)
[   19.365205][  T390]  ? 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)
[   19.365207][  T390]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   19.365211][  T390]  ? 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)
[   19.365214][  T390]  do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4))
[   19.365218][  T390]  ? exit_notify (kernel/exit.c:780)
[   19.365220][  T390]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   19.365223][  T390]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   19.365227][  T390]  do_group_exit (kernel/exit.c:1151)
[   19.365230][  T390]  __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160)
[   19.365232][  T390]  x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232)
[   19.365234][  T390]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   19.365238][  T390]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   19.365241][  T390]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   19.365243][  T390] RIP: 0033:0x7f4e49a221b8
[   19.365245][  T390] Code: Unable to access opcode bytes at 0x7f4e49a2218e.

Code starting with the faulting instruction
===========================================
[   19.365247][  T390] RSP: 002b:00007ffdc11e30c8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
[   19.365249][  T390] RAX: ffffffffffffffda RBX: 00007f4e49b52f88 RCX: 00007f4e49a221b8
[   19.365251][  T390] RDX: 00007f4e4987fb48 RSI: fffffffffffffec8 RDI: 0000000000000000
[   19.365252][  T390] RBP: 00007ffdc11e3120 R08: 00000000ffffffff R09: 0000000000001010
[   19.365252][  T390] R10: 00007ffdc11e2f20 R11: 0000000000000246 R12: 0000000000000002
[   19.365253][  T390] R13: 0000000000000000 R14: 00007f4e49b51680 R15: 00007f4e49b52fa0
| [   27.517554][    C0] softirqs last disabled at (1149897): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   27.517556][    C0] Preemption disabled at:
| [   27.517557][    C0] schedule_preempt_disabled (kernel/sched/core.c:7420)
| [   27.517566][    C0] Tainted: [W]=WARN
[   27.517567][    C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   27.517568][    C0] Call Trace:
[   27.517570][    C0]  <IRQ>
[   27.517572][    C0]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   27.517577][    C0]  ? schedule_preempt_disabled (kernel/sched/core.c:7420)
[   27.517578][    C0]  __might_resched.cold (kernel/sched/core.c:9234)
[   27.517582][    C0]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   27.517585][    C0]  ? __asan_memcpy (mm/kasan/shadow.c:106 (discriminator 1))
[   27.517588][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.517592][    C0]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   27.517595][    C0]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   27.517598][    C0]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   27.517602][    C0]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   27.517604][    C0]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   27.517605][    C0]  put_chars (drivers/char/virtio_console.c:1176)
[   27.517607][    C0]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   27.517609][    C0]  ? console_prepend_replay (kernel/printk/printk.c:3005)
[   27.517613][    C0]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   27.517616][    C0]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   27.517617][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.517619][    C0]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   27.517622][    C0]  console_emit_next_record (kernel/printk/printk.c:3183)
[   27.517624][    C0]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   27.517626][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.517628][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.517630][    C0]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   27.517631][    C0]  ? console_flush_one_record (kernel/printk/printk.c:3247)
[   27.517633][    C0]  console_flush_one_record (kernel/printk/printk.c:3268)
[   27.517636][    C0]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   27.517638][    C0]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   27.517640][    C0]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   27.517642][    C0]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   27.517643][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.517645][    C0]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   27.517646][    C0]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   27.517648][    C0]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   27.517650][    C0]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   27.517652][    C0]  vprintk_emit (kernel/printk/printk.c:2479)
[   27.517655][    C0]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   27.517656][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.517658][    C0]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   27.517660][    C0]  ? x86_64_start_kernel (arch/x86/kernel/head64.c:264)
[   27.517664][    C0]  _printk (kernel/printk/printk.c:2504)
[   27.517668][    C0]  ? snapshot_read.cold (user.c:?)
[   27.517669][    C0]  ? arch_stack_walk (arch/x86/kernel/stacktrace.c:25)
[   27.517681][    C0]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   27.517683][    C0]  ? nbcon_cpu_emergency_enter (./include/linux/instrumented.h:112 ./include/linux/atomic/atomic-instrumented.h:435 kernel/printk/nbcon.c:1723)
[   27.517685][    C0]  print_irq_inversion_bug.part.0 (kernel/locking/lockdep.c:4097 (discriminator 1))
[   27.517688][    C0]  mark_lock_irq (kernel/locking/lockdep.c:4095 kernel/locking/lockdep.c:4174 kernel/locking/lockdep.c:4310)
[   27.517690][    C0]  mark_lock (kernel/locking/lockdep.c:4769)
[   27.517693][    C0]  mark_usage (kernel/locking/lockdep.c:4658)
[   27.517694][    C0]  __lock_acquire (kernel/locking/lockdep.c:5208)
[   27.517697][    C0]  lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   27.517698][    C0]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   27.517711][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.517713][    C0]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   27.517715][    C0]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   27.517721][    C0]  _raw_spin_lock (./include/linux/spinlock_api_smp.h:190 (discriminator 1) kernel/locking/spinlock.c:173 (discriminator 1))
[   27.517723][    C0]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   27.517729][    C0] br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   27.517736][    C0]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   27.517742][    C0]  call_timer_fn (kernel/time/timer.c:1748)
[   27.517746][    C0]  ? detach_if_pending (./include/linux/list.h:1159)
[   27.517748][    C0]  ? debug_object_active_state (lib/debugobjects.c:1122)
[   27.517751][    C0]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   27.517753][    C0]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   27.517755][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.517757][    C0]  __run_timers (kernel/time/timer.c:1799 kernel/time/timer.c:2374)
[   27.517759][    C0]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   27.517766][    C0]  ? __bpf_trace_itimer_expire (./include/trace/events/timer.h:407)
[   27.517768][    C0]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   27.517770][    C0]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   27.517773][    C0]  run_timer_softirq (kernel/time/timer.c:2386 kernel/time/timer.c:2395 kernel/time/timer.c:2403)
[   27.517775][    C0]  ? __run_timers (./include/trace/events/timer.h:138 (discriminator 19))
[   27.517777][    C0]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   27.517779][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.517780][    C0]  handle_softirqs (kernel/softirq.c:645)
[   27.517782][    C0]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   27.517784][    C0]  ? _local_bh_enable (kernel/softirq.c:428 (discriminator 1))
[   27.517786][    C0]  __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
[   27.517788][    C0]  irq_exit_rcu (kernel/softirq.c:784)
[   27.517789][    C0]  sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1062 (discriminator 37) arch/x86/kernel/apic/apic.c:1062 (discriminator 37))
[   27.517792][    C0]  </IRQ>
[   27.517793][    C0]  <TASK>
[   27.517793][    C0]  ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:4427 (discriminator 2))
[   27.517795][    C0]  asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:674)
[   27.517797][    C0] RIP: 0010:pv_native_safe_halt (./arch/x86/include/asm/irqflags.h:48 arch/x86/kernel/paravirt.c:63)
[   27.517800][    C0] Code: 48 8b 3d 94 e2 f5 01 e8 1f 00 00 00 48 2b 05 58 a3 95 00 c3 0f 1f 80 00 00 00 00 f3 0f 1e fa eb 07 0f 00 2d 13 96 11 00 fb f4 <c3> 0f 1f 40 d6 48 83 ec 20 8b 17 49 89 f8 83 e2 fe 41 89 d2 0f 01
All code
========
   0:	48 8b 3d 94 e2 f5 01 	mov    0x1f5e294(%rip),%rdi        # 0x1f5e29b
   7:	e8 1f 00 00 00       	call   0x2b
   c:	48 2b 05 58 a3 95 00 	sub    0x95a358(%rip),%rax        # 0x95a36b
  13:	c3                   	ret
  14:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  1b:	f3 0f 1e fa          	endbr64
  1f:	eb 07                	jmp    0x28
  21:	0f 00 2d 13 96 11 00 	verw   0x119613(%rip)        # 0x11963b
  28:	fb                   	sti
  29:	f4                   	hlt
  2a:*	c3                   	ret		<-- trapping instruction
  2b:	0f 1f 40 d6          	nopl   -0x2a(%rax)
  2f:	48 83 ec 20          	sub    $0x20,%rsp
  33:	8b 17                	mov    (%rdi),%edx
  35:	49 89 f8             	mov    %rdi,%r8
  38:	83 e2 fe             	and    $0xfffffffe,%edx
  3b:	41 89 d2             	mov    %edx,%r10d
  3e:	0f                   	.byte 0xf
  3f:	01                   	.byte 0x1

Code starting with the faulting instruction
===========================================
   0:	c3                   	ret
   1:	0f 1f 40 d6          	nopl   -0x2a(%rax)
   5:	48 83 ec 20          	sub    $0x20,%rsp
   9:	8b 17                	mov    (%rdi),%edx
   b:	49 89 f8             	mov    %rdi,%r8
   e:	83 e2 fe             	and    $0xfffffffe,%edx
  11:	41 89 d2             	mov    %edx,%r10d
  14:	0f                   	.byte 0xf
  15:	01                   	.byte 0x1
[   27.517801][    C0] RSP: 0018:ffffffff9a407cf8 EFLAGS: 00000296
[   27.517804][    C0] RAX: 0000000000118bc7 RBX: ffffffff9a41c600 RCX: ffffffff974f0307
[   27.517806][    C0] RDX: ffffffff9a41c600 RSI: ffffffff9a238b01 RDI: ffffffff99c8d8e0
[   27.517807][    C0] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
[   27.517808][    C0] R10: 0000000000000000 R11: 0000000000000001 R12: 1ffffffff3480fa2
[   27.517809][    C0] R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000014770
[   27.517810][    C0]  ? cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   27.517813][    C0]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   27.517815][    C0]  default_idle (./arch/x86/include/asm/paravirt.h:62 arch/x86/kernel/process.c:768)
[   27.517817][    C0]  default_idle_call (kernel/sched/idle.c:122)
[   27.517818][    C0]  cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   27.517820][    C0]  ? arch_cpu_idle_exit+0x40/0x40
[   27.517822][    C0]  ? mark_tsc_async_resets (arch/x86/kernel/tsc_sync.c:49)
[   27.517824][    C0]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   27.517825][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.517827][    C0]  do_idle (kernel/sched/idle.c:355)
[   27.517829][    C0]  cpu_startup_entry (kernel/sched/idle.c:454)
[   27.517830][    C0]  rest_init (init/main.c:727)
[   27.517832][    C0]  ? __cpuidle_text_end (??:?)
[   27.517835][    C0]  ? rest_init (init/main.c:727)
[   27.517837][    C0]  ? acpi_hw_set_mode (drivers/acpi/acpica/hwacpi.c:72 (discriminator 1))
[   27.517840][    C0]  ? cpus_read_unlock (./include/linux/percpu-rwsem.h:125 (discriminator 1) kernel/cpu.c:502 (discriminator 1))
[   27.517843][    C0]  ? acpi_enable (drivers/acpi/acpica/evxfevnt.c:47)
[   27.517846][    C0]  start_kernel (init/main.c:1185)
[   27.517848][    C0]  x86_64_start_reservations (arch/x86/kernel/head64.c:310)
[   27.517849][    C0]  x86_64_start_kernel (arch/x86/kernel/head64.c:291)
[   27.517851][    C0]  common_startup_64 (arch/x86/kernel/head_64.S:418)
| [   27.587193][    C0]
| [   27.587269][    C0]
| [   27.587269][    C0] stack backtrace:
| [   27.587517][    C0] Tainted: [W]=WARN
[   27.587518][    C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   27.587519][    C0] Call Trace:
[   27.587520][    C0]  <IRQ>
[   27.587521][    C0]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   27.587525][    C0]  print_irq_inversion_bug.part.0.cold (kernel/locking/lockdep.c:4141)
[   27.587528][    C0]  mark_lock_irq (kernel/locking/lockdep.c:4095 kernel/locking/lockdep.c:4174 kernel/locking/lockdep.c:4310)
[   27.587531][    C0]  mark_lock (kernel/locking/lockdep.c:4769)
[   27.587533][    C0]  mark_usage (kernel/locking/lockdep.c:4658)
[   27.587535][    C0]  __lock_acquire (kernel/locking/lockdep.c:5208)
[   27.587538][    C0]  lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   27.587539][    C0]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   27.587546][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.587550][    C0]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   27.587552][    C0]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   27.587559][    C0]  _raw_spin_lock (./include/linux/spinlock_api_smp.h:190 (discriminator 1) kernel/locking/spinlock.c:173 (discriminator 1))
[   27.587560][    C0]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   27.587567][    C0] br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   27.587573][    C0]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   27.587579][    C0]  call_timer_fn (kernel/time/timer.c:1748)
[   27.587582][    C0]  ? detach_if_pending (./include/linux/list.h:1159)
[   27.587583][    C0]  ? debug_object_active_state (lib/debugobjects.c:1122)
[   27.587587][    C0]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   27.587588][    C0]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   27.587590][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.587592][    C0]  __run_timers (kernel/time/timer.c:1799 kernel/time/timer.c:2374)
[   27.587594][    C0]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   27.587601][    C0]  ? __bpf_trace_itimer_expire (./include/trace/events/timer.h:407)
[   27.587603][    C0]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   27.587605][    C0]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   27.587608][    C0]  run_timer_softirq (kernel/time/timer.c:2386 kernel/time/timer.c:2395 kernel/time/timer.c:2403)
[   27.587610][    C0]  ? __run_timers (./include/trace/events/timer.h:138 (discriminator 19))
[   27.587612][    C0]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   27.587614][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.587616][    C0]  handle_softirqs (kernel/softirq.c:645)
[   27.587618][    C0]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   27.587620][    C0]  ? _local_bh_enable (kernel/softirq.c:428 (discriminator 1))
[   27.587622][    C0]  __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
[   27.587623][    C0]  irq_exit_rcu (kernel/softirq.c:784)
[   27.587625][    C0]  sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1062 (discriminator 37) arch/x86/kernel/apic/apic.c:1062 (discriminator 37))
[   27.587627][    C0]  </IRQ>
[   27.587627][    C0]  <TASK>
[   27.587628][    C0]  ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:4427 (discriminator 2))
[   27.587629][    C0]  asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:674)
[   27.587631][    C0] RIP: 0010:pv_native_safe_halt (./arch/x86/include/asm/irqflags.h:48 arch/x86/kernel/paravirt.c:63)
[   27.587633][    C0] Code: 48 8b 3d 94 e2 f5 01 e8 1f 00 00 00 48 2b 05 58 a3 95 00 c3 0f 1f 80 00 00 00 00 f3 0f 1e fa eb 07 0f 00 2d 13 96 11 00 fb f4 <c3> 0f 1f 40 d6 48 83 ec 20 8b 17 49 89 f8 83 e2 fe 41 89 d2 0f 01
All code
========
   0:	48 8b 3d 94 e2 f5 01 	mov    0x1f5e294(%rip),%rdi        # 0x1f5e29b
   7:	e8 1f 00 00 00       	call   0x2b
   c:	48 2b 05 58 a3 95 00 	sub    0x95a358(%rip),%rax        # 0x95a36b
  13:	c3                   	ret
  14:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  1b:	f3 0f 1e fa          	endbr64
  1f:	eb 07                	jmp    0x28
  21:	0f 00 2d 13 96 11 00 	verw   0x119613(%rip)        # 0x11963b
  28:	fb                   	sti
  29:	f4                   	hlt
  2a:*	c3                   	ret		<-- trapping instruction
  2b:	0f 1f 40 d6          	nopl   -0x2a(%rax)
  2f:	48 83 ec 20          	sub    $0x20,%rsp
  33:	8b 17                	mov    (%rdi),%edx
  35:	49 89 f8             	mov    %rdi,%r8
  38:	83 e2 fe             	and    $0xfffffffe,%edx
  3b:	41 89 d2             	mov    %edx,%r10d
  3e:	0f                   	.byte 0xf
  3f:	01                   	.byte 0x1

Code starting with the faulting instruction
===========================================
   0:	c3                   	ret
   1:	0f 1f 40 d6          	nopl   -0x2a(%rax)
   5:	48 83 ec 20          	sub    $0x20,%rsp
   9:	8b 17                	mov    (%rdi),%edx
   b:	49 89 f8             	mov    %rdi,%r8
   e:	83 e2 fe             	and    $0xfffffffe,%edx
  11:	41 89 d2             	mov    %edx,%r10d
  14:	0f                   	.byte 0xf
  15:	01                   	.byte 0x1
[   27.587635][    C0] RSP: 0018:ffffffff9a407cf8 EFLAGS: 00000296
[   27.587637][    C0] RAX: 0000000000118bc7 RBX: ffffffff9a41c600 RCX: ffffffff974f0307
[   27.587638][    C0] RDX: ffffffff9a41c600 RSI: ffffffff9a238b01 RDI: ffffffff99c8d8e0
[   27.587639][    C0] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
[   27.587640][    C0] R10: 0000000000000000 R11: 0000000000000001 R12: 1ffffffff3480fa2
[   27.587640][    C0] R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000014770
[   27.587642][    C0]  ? cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   27.587644][    C0]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   27.587646][    C0]  default_idle (./arch/x86/include/asm/paravirt.h:62 arch/x86/kernel/process.c:768)
[   27.587647][    C0]  default_idle_call (kernel/sched/idle.c:122)
[   27.587649][    C0]  cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   27.587651][    C0]  ? arch_cpu_idle_exit+0x40/0x40
[   27.587652][    C0]  ? mark_tsc_async_resets (arch/x86/kernel/tsc_sync.c:49)
[   27.587655][    C0]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   27.587656][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.587658][    C0]  do_idle (kernel/sched/idle.c:355)
[   27.587659][    C0]  cpu_startup_entry (kernel/sched/idle.c:454)
[   27.587661][    C0]  rest_init (init/main.c:727)
[   27.587663][    C0]  ? __cpuidle_text_end (??:?)
[   27.587665][    C0]  ? rest_init (init/main.c:727)
[   27.587667][    C0]  ? acpi_hw_set_mode (drivers/acpi/acpica/hwacpi.c:72 (discriminator 1))
[   27.587671][    C0]  ? cpus_read_unlock (./include/linux/percpu-rwsem.h:125 (discriminator 1) kernel/cpu.c:502 (discriminator 1))
[   27.587679][    C0]  ? acpi_enable (drivers/acpi/acpica/evxfevnt.c:47)
[   27.587682][    C0]  start_kernel (init/main.c:1185)
[   27.587683][    C0]  x86_64_start_reservations (arch/x86/kernel/head64.c:310)
[   27.587685][    C0]  x86_64_start_kernel (arch/x86/kernel/head64.c:291)
[   27.587687][    C0]  common_startup_64 (arch/x86/kernel/head_64.S:418)
| [   50.645368][ T2058] softirqs last disabled at (0): 0x0
| [   50.645370][ T2058] Preemption disabled at:
| [   50.645371][ T2058] 0x0
| [   50.645379][ T2058] Tainted: [W]=WARN
[   50.645380][ T2058] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   50.645382][ T2058] Call Trace:
[   50.645383][ T2058]  <TASK>
[   50.645384][ T2058]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   50.645390][ T2058]  __might_resched.cold (kernel/sched/core.c:9234)
[   50.645394][ T2058]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   50.645397][ T2058]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   50.645401][ T2058]  __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))
[   50.645405][ T2058]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   50.645408][ T2058]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   50.645412][ T2058]  ? 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)
[   50.645413][ T2058]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   50.645415][ T2058]  put_chars (drivers/char/virtio_console.c:1176)
[   50.645417][ T2058]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   50.645419][ T2058]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   50.645422][ T2058]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   50.645426][ T2058]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   50.645428][ T2058]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   50.645429][ T2058]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   50.645431][ T2058]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   50.645433][ T2058]  console_emit_next_record (kernel/printk/printk.c:3183)
[   50.645436][ T2058]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   50.645438][ T2058]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   50.645439][ T2058]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   50.645441][ T2058]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   50.645443][ T2058]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   50.645445][ T2058]  ? console_flush_one_record (kernel/printk/printk.c:3247)
[   50.645446][ T2058]  console_flush_one_record (kernel/printk/printk.c:3268)
[   50.645449][ T2058]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   50.645451][ T2058]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   50.645453][ T2058]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   50.645455][ T2058]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   50.645456][ T2058]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   50.645458][ T2058]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   50.645462][ T2058]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   50.645464][ T2058]  ? __rcu_read_lock (kernel/rcu/tree_plugin.h:391 (discriminator 6) kernel/rcu/tree_plugin.h:414 (discriminator 6))
[   50.645466][ T2058]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   50.645468][ T2058]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   50.645470][ T2058]  vprintk_emit (kernel/printk/printk.c:2479)
[   50.645472][ T2058]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   50.645474][ T2058]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   50.645476][ T2058]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   50.645479][ T2058]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:78)
[   50.645480][ T2058]  _printk (kernel/printk/printk.c:2504)
[   50.645484][ T2058]  ? snapshot_read.cold (user.c:?)
[   50.645486][ T2058]  ? ipv6_mc_down (net/ipv6/mcast.c:1137 net/ipv6/mcast.c:2792)
[   50.645491][ T2058] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   50.645504][ T2058] br_stp_disable_port (net/bridge/br_stp_if.c:106) bridge
[   50.645512][ T2058] br_device_event (net/bridge/br.c:111) bridge
[   50.645520][ T2058]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   50.645524][ T2058]  ? _sub_I_65535_1+0x4d0/0x4d0 stp
[   50.645526][ T2058]  ? addrconf_notify (net/ipv6/addrconf.c:3812)
[   50.645529][ T2058]  notifier_call_chain (kernel/notifier.c:85)
[   50.645532][ T2058]  __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9855)
[   50.645536][ T2058]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   50.645537][ T2058]  ? netif_change_name (net/core/dev.c:1517)
[   50.645539][ T2058]  ? netif_set_allmulti (./include/net/netdev_lock.h:30 (discriminator 1))
[   50.645541][ T2058]  ? __kernel_text_address (kernel/extable.c:79)
[   50.645544][ T2058]  ? write_profile (profile.c:?)
[   50.645546][ T2058]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   50.645549][ T2058]  netif_change_flags (net/core/dev.c:9882)
[   50.645551][ T2058]  do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1))
[   50.645554][ T2058]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   50.645555][ T2058]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   50.645556][ T2058]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   50.645558][ T2058]  ? stack_depot_save_flags (lib/stackdepot.c:609 lib/stackdepot.c:676)
[   50.645562][ T2058]  ? kasan_save_stack (mm/kasan/common.c:58)
[   50.645565][ T2058]  ? kasan_save_stack (mm/kasan/common.c:57)
[   50.645566][ T2058]  ? kasan_save_track (mm/kasan/common.c:78)
[   50.645568][ T2058]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   50.645569][ T2058]  ? __kmalloc_cache_noprof (./include/linux/kasan.h:263 mm/slub.c:5563)
[   50.645571][ T2058]  ? rtnl_newlink (./include/linux/slab.h:991 (discriminator 1) net/core/rtnetlink.c:4113 (discriminator 1))
[   50.645572][ T2058]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   50.645573][ T2058]  ? netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   50.645576][ T2058]  ? netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   50.645577][ T2058]  ? netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   50.645579][ T2058]  ? ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   50.645581][ T2058]  ? ___sys_sendmsg (net/socket.c:2767)
[   50.645583][ T2058]  ? __sys_sendmsg (net/socket.c:2799)
[   50.645584][ T2058]  ? do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   50.645586][ T2058]  ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   50.645589][ T2058]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   50.645591][ T2058]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   50.645592][ T2058]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   50.645594][ T2058]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   50.645595][ T2058]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   50.645599][ T2058]  ? __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)
[   50.645600][ T2058]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   50.645602][ T2058]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   50.645603][ T2058]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   50.645605][ T2058]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   50.645607][ T2058]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   50.645609][ T2058]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   50.645611][ T2058]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   50.645613][ T2058]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   50.645614][ T2058]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   50.645616][ T2058]  ? is_bpf_text_address (./include/linux/rcupdate.h:850 kernel/bpf/core.c:749)
[   50.645619][ T2058]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   50.645621][ T2058]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   50.645622][ T2058]  ? __kernel_text_address (kernel/extable.c:79)
[   50.645624][ T2058]  ? write_profile (profile.c:?)
[   50.645625][ T2058]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   50.645626][ T2058]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   50.645628][ T2058]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   50.645630][ T2058]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   50.645633][ T2058]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   50.645634][ T2058]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   50.645636][ T2058]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   50.645638][ T2058]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   50.645639][ T2058]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   50.645640][ T2058]  ? filter_irq_stacks (kernel/stacktrace.c:402)
[   50.645642][ T2058]  ? stack_depot_save_flags (lib/stackdepot.c:609 lib/stackdepot.c:676)
[   50.645644][ T2058]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   50.645646][ T2058]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   50.645647][ T2058]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   50.645649][ T2058]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   50.645650][ T2058]  ? __netlink_lookup (./include/linux/rcupdate.h:850 ./include/linux/rhashtable.h:709 net/netlink/af_netlink.c:499)
[   50.645653][ T2058]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   50.645654][ T2058]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   50.645656][ T2058]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   50.645658][ T2058]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   50.645660][ T2058]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   50.645661][ T2058]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   50.645663][ T2058]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   50.645665][ T2058]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   50.645667][ T2058]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   50.645669][ T2058]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   50.645671][ T2058]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   50.645672][ T2058]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   50.645674][ T2058]  ? copy_msghdr_from_user (net/socket.c:2650)
[   50.645676][ T2058]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   50.645677][ T2058]  ? move_addr_to_kernel (net/socket.c:258)
[   50.645679][ T2058]  ? filter_irq_stacks (kernel/stacktrace.c:402)
[   50.645681][ T2058]  ___sys_sendmsg (net/socket.c:2767)
[   50.645683][ T2058]  ? copy_msghdr_from_user (net/socket.c:2619)
[   50.645688][ T2058]  __sys_sendmsg (net/socket.c:2799)
[   50.645690][ T2058]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   50.645692][ T2058]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   50.645694][ T2058]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   50.645696][ T2058]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   50.645698][ T2058]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   50.645699][ T2058] RIP: 0033:0x7efe1ef4054e
[   50.645701][ T2058] 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
[   50.645703][ T2058] RSP: 002b:00007ffd44b9d3c0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   50.645707][ T2058] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007efe1ef4054e
[   50.645708][ T2058] RDX: 0000000000000000 RSI: 00007ffd44b9d470 RDI: 0000000000000005
[   50.645709][ T2058] RBP: 00007ffd44b9d3d0 R08: 0000000000000000 R09: 0000000000000000
[   50.645710][ T2058] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90fe15
[   50.645711][ T2058] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffd44b9db30
| [   87.552834][ T3881] softirqs last disabled at (0): 0x0
| [   87.552835][ T3881] Preemption disabled at:
| [   87.552836][ T3881] 0x0
| [   87.552844][ T3881] Tainted: [W]=WARN
[   87.552845][ T3881] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   87.552847][ T3881] Call Trace:
[   87.552848][ T3881]  <TASK>
[   87.552850][ T3881]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   87.552855][ T3881]  __might_resched.cold (kernel/sched/core.c:9234)
[   87.552859][ T3881]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   87.552863][ T3881]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   87.552867][ T3881]  __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))
[   87.552870][ T3881]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   87.552873][ T3881]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   87.552877][ T3881]  ? 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)
[   87.552879][ T3881]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   87.552881][ T3881]  put_chars (drivers/char/virtio_console.c:1176)
[   87.552883][ T3881]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   87.552885][ T3881]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   87.552888][ T3881]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   87.552891][ T3881]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   87.552893][ T3881]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   87.552895][ T3881]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   87.552897][ T3881]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   87.552899][ T3881]  console_emit_next_record (kernel/printk/printk.c:3183)
[   87.552901][ T3881]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   87.552903][ T3881]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   87.552905][ T3881]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   87.552907][ T3881]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   87.552909][ T3881]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   87.552910][ T3881]  ? console_flush_one_record (kernel/printk/printk.c:3247)
[   87.552912][ T3881]  console_flush_one_record (kernel/printk/printk.c:3268)
[   87.552914][ T3881]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   87.552917][ T3881]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   87.552919][ T3881]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   87.552920][ T3881]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   87.552922][ T3881]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   87.552924][ T3881]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   87.552925][ T3881]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   87.552926][ T3881]  ? __rcu_read_lock (kernel/rcu/tree_plugin.h:391 (discriminator 6) kernel/rcu/tree_plugin.h:414 (discriminator 6))
[   87.552929][ T3881]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   87.552930][ T3881]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   87.552932][ T3881]  vprintk_emit (kernel/printk/printk.c:2479)
[   87.552935][ T3881]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   87.552937][ T3881]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   87.552938][ T3881]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   87.552941][ T3881]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:78)
[   87.552942][ T3881]  _printk (kernel/printk/printk.c:2504)
[   87.552946][ T3881]  ? snapshot_read.cold (user.c:?)
[   87.552948][ T3881]  ? ipv6_mc_down (net/ipv6/mcast.c:1137 net/ipv6/mcast.c:2792)
[   87.552953][ T3881] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   87.552965][ T3881] br_stp_disable_port (net/bridge/br_stp_if.c:106) bridge
[   87.552973][ T3881] br_device_event (net/bridge/br.c:111) bridge
[   87.552982][ T3881]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   87.552985][ T3881]  ? _sub_I_65535_1+0x4d0/0x4d0 stp
[   87.552988][ T3881]  ? addrconf_notify (net/ipv6/addrconf.c:3812)
[   87.552991][ T3881]  notifier_call_chain (kernel/notifier.c:85)
[   87.552994][ T3881]  __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9855)
[   87.552998][ T3881]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   87.552999][ T3881]  ? netif_change_name (net/core/dev.c:1517)
[   87.553002][ T3881]  ? netif_set_allmulti (./include/net/netdev_lock.h:30 (discriminator 1))
[   87.553004][ T3881]  ? __kernel_text_address (kernel/extable.c:79)
[   87.553006][ T3881]  ? write_profile (profile.c:?)
[   87.553008][ T3881]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   87.553011][ T3881]  netif_change_flags (net/core/dev.c:9882)
[   87.553013][ T3881]  do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1))
[   87.553016][ T3881]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   87.553018][ T3881]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   87.553019][ T3881]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   87.553021][ T3881]  ? stack_depot_save_flags (lib/stackdepot.c:609 lib/stackdepot.c:676)
[   87.553025][ T3881]  ? kasan_save_stack (mm/kasan/common.c:58)
[   87.553028][ T3881]  ? kasan_save_stack (mm/kasan/common.c:57)
[   87.553029][ T3881]  ? kasan_save_track (mm/kasan/common.c:78)
[   87.553031][ T3881]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   87.553032][ T3881]  ? __kmalloc_cache_noprof (./include/linux/kasan.h:263 mm/slub.c:5563)
[   87.553034][ T3881]  ? rtnl_newlink (./include/linux/slab.h:991 (discriminator 1) net/core/rtnetlink.c:4113 (discriminator 1))
[   87.553035][ T3881]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   87.553036][ T3881]  ? netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   87.553039][ T3881]  ? netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   87.553040][ T3881]  ? netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   87.553041][ T3881]  ? ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   87.553044][ T3881]  ? ___sys_sendmsg (net/socket.c:2767)
[   87.553045][ T3881]  ? __sys_sendmsg (net/socket.c:2799)
[   87.553047][ T3881]  ? do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   87.553049][ T3881]  ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   87.553057][ T3881]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   87.553059][ T3881]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   87.553060][ T3881]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   87.553062][ T3881]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   87.553064][ T3881]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   87.553067][ T3881]  ? __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)
[   87.553069][ T3881]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   87.553070][ T3881]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   87.553072][ T3881]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   87.553074][ T3881]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   87.553076][ T3881]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   87.553078][ T3881]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   87.553080][ T3881]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   87.553081][ T3881]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   87.553082][ T3881]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   87.553084][ T3881]  ? is_bpf_text_address (./include/linux/rcupdate.h:850 kernel/bpf/core.c:749)
[   87.553087][ T3881]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   87.553089][ T3881]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   87.553091][ T3881]  ? __kernel_text_address (kernel/extable.c:79)
[   87.553092][ T3881]  ? write_profile (profile.c:?)
[   87.553093][ T3881]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   87.553095][ T3881]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   87.553096][ T3881]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   87.553098][ T3881]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   87.553102][ T3881]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   87.553103][ T3881]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   87.553105][ T3881]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   87.553106][ T3881]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   87.553108][ T3881]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   87.553109][ T3881]  ? filter_irq_stacks (kernel/stacktrace.c:402)
[   87.553111][ T3881]  ? stack_depot_save_flags (lib/stackdepot.c:609 lib/stackdepot.c:676)
[   87.553113][ T3881]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   87.553115][ T3881]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   87.553116][ T3881]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   87.553117][ T3881]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   87.553119][ T3881]  ? __netlink_lookup (./include/linux/rcupdate.h:850 ./include/linux/rhashtable.h:709 net/netlink/af_netlink.c:499)
[   87.553121][ T3881]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   87.553123][ T3881]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   87.553125][ T3881]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   87.553127][ T3881]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   87.553129][ T3881]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   87.553130][ T3881]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   87.553132][ T3881]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   87.553134][ T3881]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   87.553136][ T3881]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   87.553138][ T3881]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   87.553139][ T3881]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   87.553141][ T3881]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   87.553143][ T3881]  ? copy_msghdr_from_user (net/socket.c:2650)
[   87.553145][ T3881]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   87.553146][ T3881]  ? move_addr_to_kernel (net/socket.c:258)
[   87.553148][ T3881]  ? filter_irq_stacks (kernel/stacktrace.c:402)
[   87.553150][ T3881]  ___sys_sendmsg (net/socket.c:2767)
[   87.553152][ T3881]  ? copy_msghdr_from_user (net/socket.c:2619)
[   87.553157][ T3881]  __sys_sendmsg (net/socket.c:2799)
[   87.553159][ T3881]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   87.553161][ T3881]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   87.553164][ T3881]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   87.553165][ T3881]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   87.553167][ T3881]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   87.553169][ T3881] RIP: 0033:0x7f48e058154e
[   87.553171][ T3881] 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
[   87.553172][ T3881] RSP: 002b:00007ffdc06382b0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   87.553176][ T3881] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f48e058154e
[   87.553178][ T3881] RDX: 0000000000000000 RSI: 00007ffdc0638360 RDI: 0000000000000005
[   87.553179][ T3881] RBP: 00007ffdc06382c0 R08: 0000000000000000 R09: 0000000000000000
[   87.553179][ T3881] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90fe39
[   87.553180][ T3881] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffdc0638a20
| [  160.623649][ T7760] softirqs last disabled at (0): 0x0
| [  160.623651][ T7760] Preemption disabled at:
| [  160.623652][ T7760] 0x0
| [  160.623660][ T7760] Tainted: [W]=WARN
[  160.623661][ T7760] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  160.623663][ T7760] Call Trace:
[  160.623664][ T7760]  <TASK>
[  160.623665][ T7760]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[  160.623671][ T7760]  __might_resched.cold (kernel/sched/core.c:9234)
[  160.623675][ T7760]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[  160.623678][ T7760]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  160.623682][ T7760]  __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))
[  160.623686][ T7760]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[  160.623688][ T7760]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[  160.623692][ T7760]  ? 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)
[  160.623694][ T7760]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[  160.623696][ T7760]  put_chars (drivers/char/virtio_console.c:1176)
[  160.623698][ T7760]  ? __send_to_port (drivers/char/virtio_console.c:654)
[  160.623699][ T7760]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[  160.623703][ T7760]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[  160.623706][ T7760]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[  160.623708][ T7760]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[  160.623709][ T7760]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  160.623711][ T7760]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  160.623714][ T7760]  console_emit_next_record (kernel/printk/printk.c:3183)
[  160.623716][ T7760]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[  160.623718][ T7760]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  160.623720][ T7760]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  160.623721][ T7760]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  160.623723][ T7760]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  160.623725][ T7760]  ? console_flush_one_record (kernel/printk/printk.c:3247)
[  160.623727][ T7760]  console_flush_one_record (kernel/printk/printk.c:3268)
[  160.623729][ T7760]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[  160.623732][ T7760]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[  160.623733][ T7760]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  160.623735][ T7760]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[  160.623736][ T7760]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  160.623738][ T7760]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[  160.623739][ T7760]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[  160.623741][ T7760]  ? __rcu_read_lock (kernel/rcu/tree_plugin.h:391 (discriminator 6) kernel/rcu/tree_plugin.h:414 (discriminator 6))
[  160.623743][ T7760]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[  160.623745][ T7760]  ? vprintk_emit (kernel/printk/printk.c:2478)
[  160.623747][ T7760]  vprintk_emit (kernel/printk/printk.c:2479)
[  160.623749][ T7760]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[  160.623751][ T7760]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  160.623753][ T7760]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[  160.623755][ T7760]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:78)
[  160.623757][ T7760]  _printk (kernel/printk/printk.c:2504)
[  160.623760][ T7760]  ? snapshot_read.cold (user.c:?)
[  160.623762][ T7760]  ? ipv6_mc_down (net/ipv6/mcast.c:1137 net/ipv6/mcast.c:2792)
[  160.623767][ T7760] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[  160.623780][ T7760] br_stp_disable_port (net/bridge/br_stp_if.c:106) bridge
[  160.623788][ T7760] br_device_event (net/bridge/br.c:111) bridge
[  160.623796][ T7760]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[  160.623800][ T7760]  ? _sub_I_65535_1+0x4d0/0x4d0 stp
[  160.623802][ T7760]  ? addrconf_notify (net/ipv6/addrconf.c:3812)
[  160.623805][ T7760]  notifier_call_chain (kernel/notifier.c:85)
[  160.623808][ T7760]  __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9855)
[  160.623812][ T7760]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[  160.623814][ T7760]  ? netif_change_name (net/core/dev.c:1517)
[  160.623816][ T7760]  ? netif_set_allmulti (./include/net/netdev_lock.h:30 (discriminator 1))
[  160.623818][ T7760]  ? __kernel_text_address (kernel/extable.c:79)
[  160.623820][ T7760]  ? write_profile (profile.c:?)
[  160.623822][ T7760]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[  160.623825][ T7760]  netif_change_flags (net/core/dev.c:9882)
[  160.623827][ T7760]  do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1))
[  160.623830][ T7760]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[  160.623832][ T7760]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[  160.623833][ T7760]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  160.623835][ T7760]  ? stack_depot_save_flags (lib/stackdepot.c:609 lib/stackdepot.c:676)
[  160.623838][ T7760]  ? kasan_save_stack (mm/kasan/common.c:58)
[  160.623841][ T7760]  ? kasan_save_stack (mm/kasan/common.c:57)
[  160.623843][ T7760]  ? kasan_save_track (mm/kasan/common.c:78)
[  160.623844][ T7760]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[  160.623846][ T7760]  ? __kmalloc_cache_noprof (./include/linux/kasan.h:263 mm/slub.c:5563)
[  160.623847][ T7760]  ? rtnl_newlink (./include/linux/slab.h:991 (discriminator 1) net/core/rtnetlink.c:4113 (discriminator 1))
[  160.623848][ T7760]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[  160.623850][ T7760]  ? netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[  160.623852][ T7760]  ? netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[  160.623854][ T7760]  ? netlink_sendmsg (net/netlink/af_netlink.c:1900)
[  160.623855][ T7760]  ? ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[  160.623858][ T7760]  ? ___sys_sendmsg (net/socket.c:2767)
[  160.623859][ T7760]  ? __sys_sendmsg (net/socket.c:2799)
[  160.623861][ T7760]  ? do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[  160.623863][ T7760]  ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[  160.623865][ T7760]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  160.623867][ T7760]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  160.623868][ T7760]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  160.623870][ T7760]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  160.623872][ T7760]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[  160.623875][ T7760]  ? __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)
[  160.623876][ T7760]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[  160.623877][ T7760]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[  160.623879][ T7760]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[  160.623881][ T7760]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[  160.623883][ T7760]  rtnl_newlink (net/core/rtnetlink.c:4215)
[  160.623885][ T7760]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  160.623887][ T7760]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[  160.623888][ T7760]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  160.623889][ T7760]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  160.623891][ T7760]  ? is_bpf_text_address (./include/linux/rcupdate.h:850 kernel/bpf/core.c:749)
[  160.623895][ T7760]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[  160.623896][ T7760]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[  160.623898][ T7760]  ? __kernel_text_address (kernel/extable.c:79)
[  160.623899][ T7760]  ? write_profile (profile.c:?)
[  160.623900][ T7760]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[  160.623901][ T7760]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  160.623903][ T7760]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  160.623905][ T7760]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[  160.623908][ T7760]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  160.623910][ T7760]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  160.623912][ T7760]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[  160.623913][ T7760]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[  160.623914][ T7760]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[  160.623916][ T7760]  ? filter_irq_stacks (kernel/stacktrace.c:402)
[  160.623917][ T7760]  ? stack_depot_save_flags (lib/stackdepot.c:609 lib/stackdepot.c:676)
[  160.623920][ T7760]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[  160.623921][ T7760]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[  160.623922][ T7760]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[  160.623924][ T7760]  ? netlink_ack (./include/linux/skbuff.h:2718)
[  160.623925][ T7760]  ? __netlink_lookup (./include/linux/rcupdate.h:850 ./include/linux/rhashtable.h:709 net/netlink/af_netlink.c:499)
[  160.623928][ T7760]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  160.623929][ T7760]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[  160.623931][ T7760]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[  160.623933][ T7760]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[  160.623935][ T7760]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  160.623936][ T7760]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  160.623938][ T7760]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  160.623940][ T7760]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[  160.623942][ T7760]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[  160.623944][ T7760]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  160.623945][ T7760]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[  160.623947][ T7760]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[  160.623949][ T7760]  ? copy_msghdr_from_user (net/socket.c:2650)
[  160.623951][ T7760]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[  160.623952][ T7760]  ? move_addr_to_kernel (net/socket.c:258)
[  160.623953][ T7760]  ? filter_irq_stacks (kernel/stacktrace.c:402)
[  160.623956][ T7760]  ___sys_sendmsg (net/socket.c:2767)
[  160.623958][ T7760]  ? copy_msghdr_from_user (net/socket.c:2619)
[  160.623962][ T7760]  __sys_sendmsg (net/socket.c:2799)
[  160.623964][ T7760]  ? __sys_sendmsg_sock (net/socket.c:2780)
[  160.623967][ T7760]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  160.623969][ T7760]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[  160.623970][ T7760]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[  160.623972][ T7760]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[  160.623974][ T7760] RIP: 0033:0x7f7f6893354e
[  160.623976][ T7760] 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
[  160.623978][ T7760] RSP: 002b:00007ffeb0d118c0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[  160.623982][ T7760] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f7f6893354e
[  160.623983][ T7760] RDX: 0000000000000000 RSI: 00007ffeb0d11970 RDI: 0000000000000005
[  160.623984][ T7760] RBP: 00007ffeb0d118d0 R08: 0000000000000000 R09: 0000000000000000
[  160.623985][ T7760] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90fe83
[  160.623985][ T7760] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffeb0d12030
| [  166.237330][ T7810] softirqs last disabled at (0): 0x0
| [  166.237332][ T7810] Preemption disabled at:
| [  166.237332][ T7810] 0x0
| [  166.237341][ T7810] Tainted: [W]=WARN
[  166.237342][ T7810] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  166.237343][ T7810] Call Trace:
[  166.237345][ T7810]  <TASK>
[  166.237346][ T7810]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[  166.237352][ T7810]  __might_resched.cold (kernel/sched/core.c:9234)
[  166.237356][ T7810]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[  166.237359][ T7810]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  166.237363][ T7810]  __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))
[  166.237367][ T7810]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[  166.237370][ T7810]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[  166.237373][ T7810]  ? 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)
[  166.237375][ T7810]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[  166.237377][ T7810]  put_chars (drivers/char/virtio_console.c:1176)
[  166.237379][ T7810]  ? desc_read_finalized_seq (kernel/printk/printk_ringbuffer.c:1934)
[  166.237381][ T7810]  ? __send_to_port (drivers/char/virtio_console.c:654)
[  166.237383][ T7810]  ? console_prepend_replay (kernel/printk/printk.c:3005)
[  166.237386][ T7810]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[  166.237389][ T7810]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[  166.237390][ T7810]  ? 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)
[  166.237392][ T7810]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[  166.237393][ T7810]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  166.237395][ T7810]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  166.237397][ T7810]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  166.237399][ T7810]  console_emit_next_record (kernel/printk/printk.c:3183)
[  166.237402][ T7810]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[  166.237404][ T7810]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  166.237405][ T7810]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  166.237407][ T7810]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  166.237409][ T7810]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  166.237411][ T7810]  ? console_flush_one_record (kernel/printk/printk.c:3247)
[  166.237412][ T7810]  console_flush_one_record (kernel/printk/printk.c:3268)
[  166.237415][ T7810]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[  166.237417][ T7810]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[  166.237419][ T7810]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  166.237421][ T7810]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[  166.237422][ T7810]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  166.237424][ T7810]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[  166.237426][ T7810]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[  166.237427][ T7810]  ? __rcu_read_lock (kernel/rcu/tree_plugin.h:391 (discriminator 6) kernel/rcu/tree_plugin.h:414 (discriminator 6))
[  166.237429][ T7810]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[  166.237431][ T7810]  ? vprintk_emit (kernel/printk/printk.c:2478)
[  166.237433][ T7810]  vprintk_emit (kernel/printk/printk.c:2479)
[  166.237436][ T7810]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[  166.237438][ T7810]  ? debug_object_assert_init (lib/debugobjects.c:1072 (discriminator 3))
[  166.237442][ T7810]  ? debug_object_activate (lib/debugobjects.c:884)
[  166.237445][ T7810]  _printk (kernel/printk/printk.c:2504)
[  166.237448][ T7810]  ? snapshot_read.cold (user.c:?)
[  166.237450][ T7810]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[  166.237452][ T7810]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  166.237454][ T7810]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[  166.237457][ T7810] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[  166.237473][ T7810] br_stp_disable_port (net/bridge/br_stp_if.c:106) bridge
[  166.237481][ T7810] br_stp_disable_bridge (net/bridge/br_stp_if.c:76) bridge
[  166.237488][ T7810] br_dev_stop (net/bridge/br_device.c:193) bridge
[  166.237496][ T7810]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[  166.237500][ T7810]  __dev_close_many (net/core/dev.c:1798)
[  166.237503][ T7810]  ? netif_open (net/core/dev.c:1755)
[  166.237505][ T7810]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  166.237507][ T7810]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[  166.237509][ T7810]  __dev_change_flags (net/core/dev.c:1811 net/core/dev.c:9810)
[  166.237511][ T7810]  ? netif_set_allmulti (./include/net/netdev_lock.h:30 (discriminator 1))
[  166.237513][ T7810]  ? __kernel_text_address (kernel/extable.c:79)
[  166.237516][ T7810]  ? write_profile (profile.c:?)
[  166.237518][ T7810]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[  166.237521][ T7810]  netif_change_flags (net/core/dev.c:9877)
[  166.237523][ T7810]  do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1))
[  166.237525][ T7810]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[  166.237527][ T7810]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[  166.237528][ T7810]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  166.237529][ T7810]  ? stack_depot_save_flags (lib/stackdepot.c:609 lib/stackdepot.c:676)
[  166.237533][ T7810]  ? kasan_save_stack (mm/kasan/common.c:58)
[  166.237536][ T7810]  ? kasan_save_stack (mm/kasan/common.c:57)
[  166.237537][ T7810]  ? kasan_save_track (mm/kasan/common.c:78)
[  166.237539][ T7810]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[  166.237540][ T7810]  ? __kmalloc_cache_noprof (./include/linux/kasan.h:263 mm/slub.c:5563)
[  166.237542][ T7810]  ? rtnl_newlink (./include/linux/slab.h:991 (discriminator 1) net/core/rtnetlink.c:4113 (discriminator 1))
[  166.237548][ T7810]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[  166.237550][ T7810]  ? netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[  166.237552][ T7810]  ? netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[  166.237554][ T7810]  ? netlink_sendmsg (net/netlink/af_netlink.c:1900)
[  166.237555][ T7810]  ? ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[  166.237557][ T7810]  ? ___sys_sendmsg (net/socket.c:2767)
[  166.237559][ T7810]  ? __sys_sendmsg (net/socket.c:2799)
[  166.237561][ T7810]  ? do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[  166.237564][ T7810]  ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[  166.237566][ T7810]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  166.237568][ T7810]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  166.237570][ T7810]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  166.237571][ T7810]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  166.237573][ T7810]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[  166.237576][ T7810]  ? __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)
[  166.237578][ T7810]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[  166.237580][ T7810]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[  166.237581][ T7810]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[  166.237583][ T7810]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[  166.237586][ T7810]  rtnl_newlink (net/core/rtnetlink.c:4215)
[  166.237587][ T7810]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  166.237589][ T7810]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[  166.237591][ T7810]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  166.237592][ T7810]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  166.237594][ T7810]  ? is_bpf_text_address (./include/linux/rcupdate.h:850 kernel/bpf/core.c:749)
[  166.237597][ T7810]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[  166.237599][ T7810]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[  166.237600][ T7810]  ? __kernel_text_address (kernel/extable.c:79)
[  166.237602][ T7810]  ? write_profile (profile.c:?)
[  166.237603][ T7810]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[  166.237604][ T7810]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  166.237606][ T7810]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  166.237608][ T7810]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[  166.237611][ T7810]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  166.237612][ T7810]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  166.237614][ T7810]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[  166.237616][ T7810]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[  166.237617][ T7810]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[  166.237619][ T7810]  ? filter_irq_stacks (kernel/stacktrace.c:402)
[  166.237620][ T7810]  ? stack_depot_save_flags (lib/stackdepot.c:609 lib/stackdepot.c:676)
[  166.237622][ T7810]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[  166.237624][ T7810]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[  166.237625][ T7810]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[  166.237627][ T7810]  ? netlink_ack (./include/linux/skbuff.h:2718)
[  166.237628][ T7810]  ? __netlink_lookup (./include/linux/rcupdate.h:850 ./include/linux/rhashtable.h:709 net/netlink/af_netlink.c:499)
[  166.237631][ T7810]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  166.237633][ T7810]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[  166.237634][ T7810]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[  166.237637][ T7810]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[  166.237638][ T7810]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  166.237640][ T7810]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  166.237642][ T7810]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  166.237643][ T7810]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[  166.237645][ T7810]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[  166.237647][ T7810]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  166.237649][ T7810]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[  166.237651][ T7810]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[  166.237653][ T7810]  ? copy_msghdr_from_user (net/socket.c:2650)
[  166.237654][ T7810]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[  166.237656][ T7810]  ? move_addr_to_kernel (net/socket.c:258)
[  166.237657][ T7810]  ? filter_irq_stacks (kernel/stacktrace.c:402)
[  166.237660][ T7810]  ___sys_sendmsg (net/socket.c:2767)
[  166.237662][ T7810]  ? copy_msghdr_from_user (net/socket.c:2619)
[  166.237667][ T7810]  __sys_sendmsg (net/socket.c:2799)
[  166.237669][ T7810]  ? __sys_sendmsg_sock (net/socket.c:2780)
[  166.237672][ T7810]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  166.237674][ T7810]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[  166.237675][ T7810]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[  166.237678][ T7810]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[  166.237679][ T7810] RIP: 0033:0x7f2c34a3354e
[  166.237681][ T7810] 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
[  166.237682][ T7810] RSP: 002b:00007ffcf81a8c80 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[  166.237686][ T7810] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f2c34a3354e
[  166.237688][ T7810] RDX: 0000000000000000 RSI: 00007ffcf81a8d30 RDI: 0000000000000005
[  166.237688][ T7810] RBP: 00007ffcf81a8c90 R08: 0000000000000000 R09: 0000000000000000
[  166.237689][ T7810] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90fe88


Finger prints:
mark_lock_irq:mark_lock:mark_usage:__lock_acquire:_raw_spin_lock
__irq_exit_rcu:schedule_preempt_disabled:dump_stack_lvl:__kmalloc_noprof:put_chars
__irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print
__kmalloc_noprof:put_chars:hvc_console_print:console_emit_next_record:console_flush_one_record