======================================
| [    9.506099][  T187] softirqs last disabled at (25383): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [    9.506102][  T187] Preemption disabled at:
| [    9.506102][  T187] 0x0
| [    9.506113][  T187] Tainted: [W]=WARN
[    9.506114][  T187] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.506115][  T187] Call Trace:
[    9.506117][  T187]  <TASK>
[    9.506119][  T187]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[    9.506125][  T187]  __might_resched.cold (kernel/sched/core.c:9234)
[    9.506130][  T187]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[    9.506134][  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)
[    9.506139][  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))
[    9.506141][  T187]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[    9.506147][  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)
[    9.506150][  T187]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[    9.506153][  T187]  put_chars (drivers/char/virtio_console.c:1176)
[    9.506156][  T187]  ? __send_to_port (drivers/char/virtio_console.c:654)
[    9.506157][  T187]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[    9.506162][  T187]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[    9.506167][  T187]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[    9.506174][  T187]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[    9.506176][  T187]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    9.506178][  T187]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[    9.506182][  T187]  console_emit_next_record (kernel/printk/printk.c:3183)
[    9.506187][  T187]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[    9.506188][  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))
[    9.506192][  T187]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    9.506194][  T187]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[    9.506198][  T187]  console_flush_one_record (kernel/printk/printk.c:3268)
[    9.506202][  T187]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[    9.506204][  T187]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[    9.506210][  T187]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[    9.506212][  T187]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[    9.506214][  T187]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    9.506217][  T187]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[    9.506220][  T187]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[    9.506222][  T187]  ? vprintk_emit (kernel/printk/printk.c:2478)
[    9.506226][  T187]  vprintk_emit (kernel/printk/printk.c:2479)
[    9.506229][  T187]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[    9.506233][  T187]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[    9.506237][  T187]  _printk (kernel/printk/printk.c:2504)
[    9.506240][  T187]  ? snapshot_read.cold (user.c:?)
[    9.506243][  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)
[    9.506246][  T187]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[    9.506250][  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)
[    9.506253][  T187]  do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4))
[    9.506256][  T187]  ? exit_notify (kernel/exit.c:780)
[    9.506258][  T187]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[    9.506261][  T187]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    9.506265][  T187]  do_group_exit (kernel/exit.c:1151)
[    9.506268][  T187]  __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160)
[    9.506270][  T187]  x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232)
[    9.506272][  T187]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[    9.506275][  T187]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[    9.506278][  T187]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.506281][  T187] RIP: 0033:0x7f41b94051b8
[    9.506283][  T187] Code: Unable to access opcode bytes at 0x7f41b940518e.

Code starting with the faulting instruction
===========================================
[    9.506284][  T187] RSP: 002b:00007ffc7ba0b478 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
[    9.506287][  T187] RAX: ffffffffffffffda RBX: 00007f41b9535f88 RCX: 00007f41b94051b8
[    9.506288][  T187] RDX: 00007f41b914ffc8 RSI: fffffffffffffeb8 RDI: 0000000000000000
[    9.506289][  T187] RBP: 00007ffc7ba0b4d0 R08: 0000000000000000 R09: 0000000000008010
[    9.506290][  T187] R10: 00007ffc7ba0b290 R11: 0000000000000246 R12: 0000000000000001
[    9.506290][  T187] R13: 0000000000000000 R14: 00007f41b9534680 R15: 00007f41b9535fa0
| [   11.263033][  T256] softirqs last disabled at (24673): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   11.263035][  T256] Preemption disabled at:
| [   11.263036][  T256] 0x0
| [   11.263046][  T256] Tainted: [W]=WARN
[   11.263047][  T256] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.263049][  T256] Call Trace:
[   11.263050][  T256]  <TASK>
[   11.263052][  T256]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   11.263058][  T256]  __might_resched.cold (kernel/sched/core.c:9234)
[   11.263062][  T256]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   11.263066][  T256]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   11.263071][  T256]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   11.263073][  T256]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.263079][  T256]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   11.263082][  T256]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.263085][  T256]  put_chars (drivers/char/virtio_console.c:1176)
[   11.263088][  T256]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   11.263089][  T256]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   11.263094][  T256]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   11.263099][  T256]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   11.263105][  T256]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   11.263107][  T256]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.263109][  T256]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.263115][  T256]  console_emit_next_record (kernel/printk/printk.c:3183)
[   11.263119][  T256]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   11.263120][  T256]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   11.263123][  T256]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.263126][  T256]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.263130][  T256]  console_flush_one_record (kernel/printk/printk.c:3268)
[   11.263134][  T256]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   11.263135][  T256]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.263141][  T256]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   11.263143][  T256]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   11.263145][  T256]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.263147][  T256]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   11.263151][  T256]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   11.263153][  T256]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   11.263156][  T256]  vprintk_emit (kernel/printk/printk.c:2479)
[   11.263160][  T256]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   11.263163][  T256]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.263167][  T256]  _printk (kernel/printk/printk.c:2504)
[   11.263170][  T256]  ? snapshot_read.cold (user.c:?)
[   11.263173][  T256]  ? do_raw_spin_lock (./include/linux/instrumented.h:55 ./include/linux/atomic/atomic-instrumented.h:1301 ./include/asm-generic/qspinlock.h:112 kernel/locking/spinlock_debug.c:116)
[   11.263176][  T256]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   11.263179][  T256]  ? do_raw_spin_lock (./include/linux/instrumented.h:55 ./include/linux/atomic/atomic-instrumented.h:1301 ./include/asm-generic/qspinlock.h:112 kernel/locking/spinlock_debug.c:116)
[   11.263182][  T256]  do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4))
[   11.263186][  T256]  ? exit_notify (kernel/exit.c:780)
[   11.263188][  T256]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   11.263190][  T256]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.263194][  T256]  do_group_exit (kernel/exit.c:1151)
[   11.263197][  T256]  __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160)
[   11.263199][  T256]  x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232)
[   11.263201][  T256]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   11.263204][  T256]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   11.263207][  T256]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   11.263209][  T256] RIP: 0033:0x7fb58539f1b8
[   11.263211][  T256] Code: Unable to access opcode bytes at 0x7fb58539f18e.

Code starting with the faulting instruction
===========================================
[   11.263213][  T256] RSP: 002b:00007ffd6838d5a8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
[   11.263215][  T256] RAX: ffffffffffffffda RBX: 00007fb5854cff88 RCX: 00007fb58539f1b8
[   11.263216][  T256] RDX: 00007fb5850e9fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000
[   11.263217][  T256] RBP: 00007ffd6838d600 R08: 0000000000000000 R09: 0000000000000050
[   11.263218][  T256] R10: 00007ffd6838d3c0 R11: 0000000000000246 R12: 0000000000000001
[   11.263219][  T256] R13: 0000000000000000 R14: 00007fb5854ce680 R15: 00007fb5854cffa0
| [   12.509905][  T306] softirqs last disabled at (13034): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   12.509908][  T306] Preemption disabled at:
| [   12.509909][  T306] vprintk_emit (kernel/printk/printk.c:2471)
| [   12.509917][  T306] Tainted: [W]=WARN
[   12.509918][  T306] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.509919][  T306] Call Trace:
[   12.509921][  T306]  <TASK>
[   12.509922][  T306]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   12.509928][  T306]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   12.509931][  T306]  __might_resched.cold (kernel/sched/core.c:9234)
[   12.509935][  T306]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   12.509939][  T306]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   12.509944][  T306]  __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))
[   12.509947][  T306]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   12.509952][  T306]  ? 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)
[   12.509955][  T306]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   12.509958][  T306]  put_chars (drivers/char/virtio_console.c:1176)
[   12.509960][  T306]  ? prb_final_commit (kernel/printk/printk_ringbuffer.c:1842)
[   12.509962][  T306]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   12.509965][  T306]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   12.509970][  T306]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   12.509972][  T306]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   12.509976][  T306]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   12.509979][  T306]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   12.509980][  T306]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.509982][  T306]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.509992][  T306]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   12.509994][  T306]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   12.509997][  T306]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.509999][  T306]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.510003][  T306]  console_emit_next_record (kernel/printk/printk.c:3183)
[   12.510006][  T306]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   12.510008][  T306]  ? 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))
[   12.510011][  T306]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.510014][  T306]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.510017][  T306]  console_flush_one_record (kernel/printk/printk.c:3268)
[   12.510021][  T306]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   12.510023][  T306]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.510028][  T306]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   12.510031][  T306]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   12.510033][  T306]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.510035][  T306]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   12.510038][  T306]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   12.510040][  T306]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   12.510043][  T306]  vprintk_emit (kernel/printk/printk.c:2479)
[   12.510047][  T306]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   12.510050][  T306]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   12.510052][  T306]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   12.510056][  T306]  _printk (kernel/printk/printk.c:2504)
[   12.510059][  T306]  ? snapshot_read.cold (user.c:?)
[   12.510063][  T306]  ? br_multicast_flood (??:?) bridge
[   12.510076][  T306]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   12.510077][  T306]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   12.510078][  T306]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   12.510082][  T306] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   12.510092][  T306] br_init_port (net/bridge/br_stp_if.c:39) bridge
[   12.510101][  T306] new_nbp (net/bridge/br_if.c:449) bridge
[   12.510109][  T306] br_add_if (net/bridge/br_if.c:592) bridge
[   12.510116][  T306]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   12.510121][  T306]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   12.510124][  T306]  ? __kernel_text_address (kernel/extable.c:79)
[   12.510127][  T306]  do_set_master (net/core/rtnetlink.c:3071)
[   12.510132][  T306]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   12.510135][  T306]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   12.510138][  T306]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   12.510139][  T306]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   12.510141][  T306]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   12.510144][  T306]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   12.510147][  T306]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   12.510149][  T306]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   12.510151][  T306]  ? kasan_save_stack (mm/kasan/common.c:58)
[   12.510154][  T306]  ? kasan_save_stack (mm/kasan/common.c:57)
[   12.510156][  T306]  ? kasan_save_track (mm/kasan/common.c:78)
[   12.510158][  T306]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.510160][  T306]  ? netlink_seq_next (net/netlink/af_netlink.c:2685)
[   12.510163][  T306]  ? ___sys_sendmsg (net/socket.c:2757)
[   12.510168][  T306]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   12.510169][  T306]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   12.510172][  T306]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.510174][  T306]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.510176][  T306]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.510177][  T306]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.510180][  T306]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   12.510184][  T306]  ? __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)
[   12.510187][  T306]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   12.510189][  T306]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   12.510192][  T306]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   12.510193][  T306]  ? nla_get_range_signed (lib/nlattr.c:270)
[   12.510198][  T306]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   12.510203][  T306]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   12.510208][  T306]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   12.510210][  T306]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.510214][  T306]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   12.510216][  T306]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   12.510218][  T306]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   12.510220][  T306]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   12.510223][  T306]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   12.510225][  T306]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   12.510228][  T306]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   12.510229][  T306]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.510234][  T306]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   12.510235][  T306]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   12.510239][  T306]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   12.510240][  T306]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   12.510243][  T306]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   12.510249][  T306]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   12.510250][  T306]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   12.510254][  T306]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   12.510258][  T306]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   12.510261][  T306]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.510265][  T306]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   12.510268][  T306]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   12.510272][  T306]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   12.510277][  T306]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   12.510279][  T306]  ? copy_msghdr_from_user (net/socket.c:2650)
[   12.510281][  T306]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   12.510283][  T306]  ? move_addr_to_kernel (net/socket.c:258)
[   12.510290][  T306]  ___sys_sendmsg (net/socket.c:2767)
[   12.510293][  T306]  ? copy_msghdr_from_user (net/socket.c:2619)
[   12.510308][  T306]  __sys_sendmsg (net/socket.c:2799)
[   12.510311][  T306]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   12.510317][  T306]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.510320][  T306]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   12.510322][  T306]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   12.510325][  T306]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   12.510327][  T306] RIP: 0033:0x7f6c6a43054e
[   12.510331][  T306] 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
[   12.510332][  T306] RSP: 002b:00007ffee84cd400 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   12.510335][  T306] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f6c6a43054e
[   12.510336][  T306] RDX: 0000000000000000 RSI: 00007ffee84cd4b0 RDI: 0000000000000005
[   12.510337][  T306] RBP: 00007ffee84cd410 R08: 0000000000000000 R09: 0000000000000000
[   12.510338][  T306] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a910fa6
[   12.510339][  T306] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffee84cdb70
| [   13.589414][  T349] softirqs last disabled at (17722): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   13.589416][  T349] Preemption disabled at:
| [   13.589417][  T349] vprintk_emit (kernel/printk/printk.c:2471)
| [   13.589426][  T349] Tainted: [W]=WARN
[   13.589427][  T349] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.589429][  T349] Call Trace:
[   13.589430][  T349]  <TASK>
[   13.589432][  T349]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   13.589438][  T349]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   13.589440][  T349]  __might_resched.cold (kernel/sched/core.c:9234)
[   13.589445][  T349]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   13.589449][  T349]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   13.589454][  T349]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   13.589456][  T349]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   13.589462][  T349]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   13.589465][  T349]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   13.589468][  T349]  put_chars (drivers/char/virtio_console.c:1176)
[   13.589470][  T349]  ? prb_final_commit (kernel/printk/printk_ringbuffer.c:1842)
[   13.589472][  T349]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   13.589475][  T349]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   13.589479][  T349]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   13.589482][  T349]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   13.589485][  T349]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   13.589488][  T349]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   13.589490][  T349]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.589491][  T349]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.589495][  T349]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   13.589497][  T349]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   13.589500][  T349]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.589503][  T349]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   13.589507][  T349]  console_emit_next_record (kernel/printk/printk.c:3183)
[   13.589510][  T349]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   13.589512][  T349]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   13.589515][  T349]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.589517][  T349]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   13.589521][  T349]  console_flush_one_record (kernel/printk/printk.c:3268)
[   13.589525][  T349]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   13.589527][  T349]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.589532][  T349]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   13.589535][  T349]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   13.589537][  T349]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.589539][  T349]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   13.589543][  T349]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   13.589544][  T349]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   13.589548][  T349]  vprintk_emit (kernel/printk/printk.c:2479)
[   13.589552][  T349]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   13.589554][  T349]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   13.589557][  T349]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   13.589560][  T349]  _printk (kernel/printk/printk.c:2504)
[   13.589564][  T349]  ? snapshot_read.cold (user.c:?)
[   13.589567][  T349]  ? br_multicast_flood (??:?) bridge
[   13.589579][  T349]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   13.589581][  T349]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   13.589582][  T349]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   13.589586][  T349] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   13.589596][  T349] br_init_port (net/bridge/br_stp_if.c:39) bridge
[   13.589604][  T349] new_nbp (net/bridge/br_if.c:449) bridge
[   13.589613][  T349] br_add_if (net/bridge/br_if.c:592) bridge
[   13.589620][  T349]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   13.589624][  T349]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   13.589627][  T349]  ? __kernel_text_address (kernel/extable.c:79)
[   13.589630][  T349]  do_set_master (net/core/rtnetlink.c:3071)
[   13.589635][  T349]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   13.589638][  T349]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   13.589641][  T349]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   13.589642][  T349]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   13.589644][  T349]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   13.589648][  T349]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   13.589650][  T349]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   13.589652][  T349]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   13.589654][  T349]  ? kasan_save_stack (mm/kasan/common.c:58)
[   13.589658][  T349]  ? kasan_save_stack (mm/kasan/common.c:57)
[   13.589659][  T349]  ? kasan_save_track (mm/kasan/common.c:78)
[   13.589662][  T349]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.589664][  T349]  ? netlink_seq_next (net/netlink/af_netlink.c:2685)
[   13.589667][  T349]  ? ___sys_sendmsg (net/socket.c:2757)
[   13.589671][  T349]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   13.589673][  T349]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   13.589675][  T349]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.589678][  T349]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   13.589679][  T349]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.589681][  T349]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.589683][  T349]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   13.589687][  T349]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   13.589690][  T349]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   13.589692][  T349]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   13.589695][  T349]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   13.589697][  T349]  ? nla_get_range_signed (lib/nlattr.c:270)
[   13.589701][  T349]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   13.589707][  T349]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   13.589712][  T349]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   13.589713][  T349]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.589718][  T349]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   13.589720][  T349]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   13.589722][  T349]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   13.589723][  T349]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   13.589727][  T349]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   13.589729][  T349]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   13.589732][  T349]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   13.589733][  T349]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.589738][  T349]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   13.589739][  T349]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   13.589743][  T349]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   13.589745][  T349]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   13.589747][  T349]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   13.589753][  T349]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   13.589755][  T349]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   13.589759][  T349]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   13.589763][  T349]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   13.589765][  T349]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.589769][  T349]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   13.589773][  T349]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   13.589777][  T349]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   13.589782][  T349]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   13.589784][  T349]  ? copy_msghdr_from_user (net/socket.c:2650)
[   13.589786][  T349]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   13.589788][  T349]  ? move_addr_to_kernel (net/socket.c:258)
[   13.589795][  T349]  ___sys_sendmsg (net/socket.c:2767)
[   13.589798][  T349]  ? copy_msghdr_from_user (net/socket.c:2619)
[   13.589813][  T349]  __sys_sendmsg (net/socket.c:2799)
[   13.589816][  T349]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   13.589822][  T349]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.589825][  T349]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   13.589827][  T349]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   13.589830][  T349]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   13.589832][  T349] RIP: 0033:0x7ff65c17654e
[   13.589836][  T349] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   13.589837][  T349] RSP: 002b:00007ffe9866c6a0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   13.589840][  T349] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007ff65c17654e
[   13.589842][  T349] RDX: 0000000000000000 RSI: 00007ffe9866c750 RDI: 0000000000000005
[   13.589843][  T349] RBP: 00007ffe9866c6b0 R08: 0000000000000000 R09: 0000000000000000
[   13.589843][  T349] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a910fa7
[   13.589844][  T349] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffe9866ce10
| [   22.976685][   T70] softirqs last disabled at (26489): do_softirq (kernel/softirq.c:546 (discriminator 19) kernel/softirq.c:533 (discriminator 19))
| [   22.976688][   T70] Preemption disabled at:
| [   22.976689][   T70] vprintk_emit (kernel/printk/printk.c:2471)
| [   22.976701][   T70] Tainted: [W]=WARN
[   22.976703][   T70] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   22.976705][   T70] Workqueue: netns cleanup_net
[   22.976709][   T70] Call Trace:
[   22.976712][   T70]  <TASK>
[   22.976714][   T70]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   22.976721][   T70]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   22.976724][   T70]  __might_resched.cold (kernel/sched/core.c:9234)
[   22.976731][   T70]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   22.976736][   T70]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   22.976744][   T70]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   22.976748][   T70]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   22.976756][   T70]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   22.976760][   T70]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   22.976765][   T70]  put_chars (drivers/char/virtio_console.c:1176)
[   22.976770][   T70]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   22.976776][   T70]  ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928)
[   22.976784][   T70]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   22.976788][   T70]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.976790][   T70]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.976799][   T70]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   22.976801][   T70]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   22.976807][   T70]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.976812][   T70]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   22.976819][   T70]  console_emit_next_record (kernel/printk/printk.c:3183)
[   22.976826][   T70]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   22.976828][   T70]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   22.976834][   T70]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.976838][   T70]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   22.976845][   T70]  console_flush_one_record (kernel/printk/printk.c:3268)
[   22.976852][   T70]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   22.976854][   T70]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.976864][   T70]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   22.976869][   T70]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   22.976871][   T70]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.976875][   T70]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   22.976882][   T70]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   22.976884][   T70]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   22.976890][   T70]  vprintk_emit (kernel/printk/printk.c:2479)
[   22.976896][   T70]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   22.976899][   T70]  ? process_one_work (kernel/workqueue.c:3387)
[   22.976902][   T70]  ? kthread (kernel/kthread.c:436)
[   22.976905][   T70]  ? ret_from_fork (arch/x86/kernel/process.c:158)
[   22.976908][   T70]  ? ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
[   22.976917][   T70]  _printk (kernel/printk/printk.c:2504)
[   22.976922][   T70]  ? snapshot_read.cold (user.c:?)
[   22.976930][   T70]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   22.976935][   T70]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   22.976941][   T70]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   22.976945][   T70]  ? netdev_notice (net/core/dev.c:13194)
[   22.976952][   T70]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.976956][   T70]  ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1))
[   22.976961][   T70]  ? down_write_nested (kernel/locking/rwsem.c:1759)
[   22.976963][   T70]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   22.976967][   T70]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   22.976972][   T70]  netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3))
[   22.976980][   T70]  dev_set_allmulti (net/core/dev_api.c:315)
[   22.976986][   T70] del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341) bridge
[   22.977011][   T70] br_dev_delete (net/bridge/br_if.c:387) bridge
[   22.977033][   T70] br_net_exit_rtnl (net/bridge/br.c:414) bridge
[   22.977049][   T70]  ops_undo_list (net/core/net_namespace.c:181 net/core/net_namespace.c:249)
[   22.977055][   T70]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   22.977060][   T70]  ? rtnl_net_dumpid_one (net/core/net_namespace.c:1098)
[   22.977063][   T70]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   22.977068][   T70]  ? idr_destroy (lib/radix-tree.c:310 lib/radix-tree.c:674 lib/radix-tree.c:1563)
[   22.977076][   T70]  cleanup_net (net/core/net_namespace.c:706)
[   22.977081][   T70]  ? net_passive_dec (./include/linux/llist.h:241)
[   22.977088][   T70]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   22.977091][   T70]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.977098][   T70]  process_one_work (kernel/workqueue.c:3387)
[   22.977110][   T70]  ? __queue_delayed_work (kernel/workqueue.c:2622)
[   22.977117][   T70]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   22.977131][   T70]  worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   22.977138][   T70]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   22.977141][   T70]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   22.977146][   T70]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   22.977150][   T70]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   22.977153][   T70]  kthread (kernel/kthread.c:436)
[   22.977156][   T70]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   22.977160][   T70]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   22.977164][   T70]  ret_from_fork (arch/x86/kernel/process.c:158)
[   22.977169][   T70]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1))
[   22.977175][   T70]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   22.977179][   T70]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   22.977184][   T70]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   23.923966][    C0]
| [   23.923967][    C0]
| [   23.923967][    C0] stack backtrace:
| [   23.923975][    C0] Tainted: [W]=WARN
[   23.923976][    C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   23.923978][    C0] Call Trace:
[   23.923980][    C0]  <IRQ>
[   23.923981][    C0]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   23.923986][    C0]  print_irq_inversion_bug.part.0.cold (kernel/locking/lockdep.c:4141)
[   23.923990][    C0]  mark_lock_irq (kernel/locking/lockdep.c:4095 kernel/locking/lockdep.c:4174 kernel/locking/lockdep.c:4310)
[   23.923992][    C0]  ? add_lock_to_list (./include/linux/find.h:391 kernel/locking/lockdep.c:1419 kernel/locking/lockdep.c:1450)
[   23.923996][    C0]  mark_lock (kernel/locking/lockdep.c:4769)
[   23.923999][    C0]  mark_usage (kernel/locking/lockdep.c:4658)
[   23.924001][    C0]  __lock_acquire (kernel/locking/lockdep.c:5208)
[   23.924005][    C0]  lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   23.924007][    C0]  ? console_trylock_spinning (kernel/printk/printk.c:2026 (discriminator 2))
[   23.924010][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   23.924014][    C0]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   23.924017][    C0]  console_trylock_spinning (kernel/printk/printk.c:2026 (discriminator 2))
[   23.924019][    C0]  ? console_trylock_spinning (kernel/printk/printk.c:2026 (discriminator 2))
[   23.924022][    C0]  vprintk_emit (kernel/printk/printk.c:2478)
[   23.924030][    C0]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   23.924034][    C0]  ? clocksource_watchdog.part.0 (kernel/time/clocksource.c:531 (discriminator 1) kernel/time/clocksource.c:608 (discriminator 1) kernel/time/clocksource.c:667 (discriminator 1))
[   23.924037][    C0]  _printk (kernel/printk/printk.c:2504)
[   23.924039][    C0]  ? snapshot_read.cold (user.c:?)
[   23.924042][    C0]  ? clocksource_watchdog.part.0 (kernel/time/clocksource.c:531 (discriminator 1) kernel/time/clocksource.c:608 (discriminator 1) kernel/time/clocksource.c:667 (discriminator 1))
[   23.924044][    C0]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   23.924048][    C0]  clocksource_watchdog.part.0.cold (kernel/time/clocksource.c:589 (discriminator 10) kernel/time/clocksource.c:632 (discriminator 10) kernel/time/clocksource.c:667 (discriminator 10))
[   23.924050][    C0]  ? clocksource_watchdog.part.0 (./include/linux/find.h:67 (discriminator 4))
[   23.924053][    C0]  ? clocksource_watchdog.part.0 (./include/linux/find.h:67 (discriminator 4))
[   23.924055][    C0]  call_timer_fn (kernel/time/timer.c:1748)
[   23.924058][    C0]  ? detach_if_pending (./include/linux/list.h:1159)
[   23.924060][    C0]  ? debug_object_active_state (lib/debugobjects.c:1122)
[   23.924064][    C0]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   23.924067][    C0]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   23.924070][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   23.924073][    C0]  __run_timers (kernel/time/timer.c:1799 kernel/time/timer.c:2374)
[   23.924075][    C0]  ? clocksource_watchdog.part.0 (./include/linux/find.h:67 (discriminator 4))
[   23.924079][    C0]  ? __bpf_trace_itimer_expire (./include/trace/events/timer.h:407)
[   23.924081][    C0]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   23.924085][    C0]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   23.924089][    C0]  run_timer_softirq (kernel/time/timer.c:2386 kernel/time/timer.c:2395 kernel/time/timer.c:2403)
[   23.924092][    C0]  ? __run_timers (./include/trace/events/timer.h:138 (discriminator 19))
[   23.924094][    C0]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   23.924097][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   23.924100][    C0]  handle_softirqs (kernel/softirq.c:645)
[   23.924103][    C0]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   23.924105][    C0]  ? _local_bh_enable (kernel/softirq.c:428 (discriminator 1))
[   23.924108][    C0]  __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
[   23.924110][    C0]  irq_exit_rcu (kernel/softirq.c:784)
[   23.924112][    C0]  sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1062 (discriminator 37) arch/x86/kernel/apic/apic.c:1062 (discriminator 37))
[   23.924115][    C0]  </IRQ>
[   23.924116][    C0]  <TASK>
[   23.924117][    C0]  asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:674)
[   23.924120][    C0] RIP: 0010:pv_native_safe_halt (./arch/x86/include/asm/irqflags.h:48 arch/x86/kernel/paravirt.c:63)
[   23.924123][    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
[   23.924125][    C0] RSP: 0018:ffffffffa2207cf8 EFLAGS: 00000296
[   23.924128][    C0] RAX: 00000000000cb5e5 RBX: ffffffffa221c600 RCX: ffffffff9f2f0307
[   23.924130][    C0] RDX: ffffffffa221c600 RSI: ffffffffa2038b01 RDI: ffffffffa1a8d8e0
[   23.924132][    C0] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
[   23.924133][    C0] R10: 0000000000000000 R11: 0000000000000001 R12: 1ffffffff4440fa2
[   23.924134][    C0] R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000014770
[   23.924137][    C0]  ? cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   23.924140][    C0]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   23.924143][    C0]  default_idle (./arch/x86/include/asm/paravirt.h:62 arch/x86/kernel/process.c:768)
[   23.924145][    C0]  default_idle_call (kernel/sched/idle.c:122)
[   23.924147][    C0]  cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   23.924149][    C0]  ? arch_cpu_idle_exit+0x40/0x40
[   23.924152][    C0]  ? mark_tsc_async_resets (arch/x86/kernel/tsc_sync.c:49)
[   23.924155][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   23.924158][    C0]  do_idle (kernel/sched/idle.c:355)
[   23.924160][    C0]  cpu_startup_entry (kernel/sched/idle.c:454)
[   23.924162][    C0]  rest_init (init/main.c:727)
[   23.924165][    C0]  ? __cpuidle_text_end (??:?)
[   23.924169][    C0]  ? rest_init (init/main.c:727)
[   23.924172][    C0]  ? acpi_hw_set_mode (drivers/acpi/acpica/hwacpi.c:72 (discriminator 1))
[   23.924176][    C0]  ? cpus_read_unlock (./include/linux/percpu-rwsem.h:125 (discriminator 1) kernel/cpu.c:502 (discriminator 1))
[   23.924180][    C0]  ? acpi_enable (drivers/acpi/acpica/evxfevnt.c:47)
[   23.924183][    C0]  start_kernel (init/main.c:1185)
[   23.924185][    C0]  x86_64_start_reservations (arch/x86/kernel/head64.c:310)
[   23.924188][    C0]  x86_64_start_kernel (arch/x86/kernel/head64.c:291)
[   23.924191][    C0]  common_startup_64 (arch/x86/kernel/head_64.S:418)
| [   24.030516][  T479] softirqs last disabled at (0): 0x0
| [   24.030518][  T479] Preemption disabled at:
| [   24.030518][  T479] 0x0
| [   24.030526][  T479] Tainted: [W]=WARN
[   24.030527][  T479] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   24.030529][  T479] Call Trace:
[   24.030530][  T479]  <TASK>
[   24.030531][  T479]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   24.030537][  T479]  __might_resched.cold (kernel/sched/core.c:9234)
[   24.030541][  T479]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   24.030545][  T479]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.030549][  T479]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   24.030553][  T479]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   24.030556][  T479]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   24.030559][  T479]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   24.030561][  T479]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   24.030563][  T479]  put_chars (drivers/char/virtio_console.c:1176)
[   24.030565][  T479]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   24.030566][  T479]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   24.030570][  T479]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   24.030573][  T479]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   24.030575][  T479]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   24.030577][  T479]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.030579][  T479]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   24.030581][  T479]  console_emit_next_record (kernel/printk/printk.c:3183)
[   24.030584][  T479]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   24.030586][  T479]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.030587][  T479]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.030589][  T479]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.030590][  T479]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   24.030592][  T479]  ? console_flush_one_record (kernel/printk/printk.c:3247)
[   24.030594][  T479]  console_flush_one_record (kernel/printk/printk.c:3268)
[   24.030596][  T479]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   24.030599][  T479]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   24.030601][  T479]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   24.030602][  T479]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   24.030604][  T479]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.030606][  T479]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   24.030607][  T479]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   24.030609][  T479]  ? __rcu_read_lock (kernel/rcu/tree_plugin.h:391 (discriminator 6) kernel/rcu/tree_plugin.h:414 (discriminator 6))
[   24.030611][  T479]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   24.030613][  T479]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   24.030615][  T479]  vprintk_emit (kernel/printk/printk.c:2479)
[   24.030617][  T479]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   24.030619][  T479]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.030621][  T479]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   24.030624][  T479]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:78)
[   24.030625][  T479]  _printk (kernel/printk/printk.c:2504)
[   24.030629][  T479]  ? snapshot_read.cold (user.c:?)
[   24.030631][  T479]  ? ipv6_mc_down (net/ipv6/mcast.c:1137 net/ipv6/mcast.c:2792)
[   24.030636][  T479] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   24.030649][  T479] br_stp_disable_port (net/bridge/br_stp_if.c:106) bridge
[   24.030658][  T479] br_device_event (net/bridge/br.c:111) bridge
[   24.030667][  T479]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   24.030670][  T479]  ? _sub_I_65535_1+0x4d0/0x4d0 stp
[   24.030673][  T479]  ? addrconf_notify (net/ipv6/addrconf.c:3812)
[   24.030676][  T479]  notifier_call_chain (kernel/notifier.c:85)
[   24.030679][  T479]  __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9855)
[   24.030683][  T479]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   24.030684][  T479]  ? netif_change_name (net/core/dev.c:1517)
[   24.030687][  T479]  ? netif_set_allmulti (./include/net/netdev_lock.h:30 (discriminator 1))
[   24.030689][  T479]  ? __kernel_text_address (kernel/extable.c:79)
[   24.030691][  T479]  ? write_profile (profile.c:?)
[   24.030693][  T479]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   24.030696][  T479]  netif_change_flags (net/core/dev.c:9882)
[   24.030698][  T479]  do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1))
[   24.030701][  T479]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   24.030703][  T479]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   24.030704][  T479]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.030706][  T479]  ? stack_depot_save_flags (lib/stackdepot.c:609 lib/stackdepot.c:676)
[   24.030710][  T479]  ? kasan_save_stack (mm/kasan/common.c:58)
[   24.030713][  T479]  ? kasan_save_stack (mm/kasan/common.c:57)
[   24.030714][  T479]  ? kasan_save_track (mm/kasan/common.c:78)
[   24.030716][  T479]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   24.030717][  T479]  ? __kmalloc_cache_noprof (./include/linux/kasan.h:263 mm/slub.c:5563)
[   24.030719][  T479]  ? rtnl_newlink (./include/linux/slab.h:991 (discriminator 1) net/core/rtnetlink.c:4113 (discriminator 1))
[   24.030720][  T479]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   24.030721][  T479]  ? netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   24.030724][  T479]  ? netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   24.030725][  T479]  ? netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   24.030726][  T479]  ? ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   24.030729][  T479]  ? ___sys_sendmsg (net/socket.c:2767)
[   24.030730][  T479]  ? __sys_sendmsg (net/socket.c:2799)
[   24.030732][  T479]  ? do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   24.030734][  T479]  ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   24.030737][  T479]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.030739][  T479]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   24.030740][  T479]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.030741][  T479]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.030743][  T479]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   24.030747][  T479]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   24.030748][  T479]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   24.030750][  T479]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   24.030751][  T479]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   24.030753][  T479]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   24.030755][  T479]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   24.030757][  T479]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.030759][  T479]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   24.030760][  T479]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   24.030762][  T479]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.030764][  T479]  ? is_bpf_text_address (./include/linux/rcupdate.h:850 kernel/bpf/core.c:749)
[   24.030767][  T479]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   24.030769][  T479]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   24.030770][  T479]  ? __kernel_text_address (kernel/extable.c:79)
[   24.030771][  T479]  ? write_profile (profile.c:?)
[   24.030773][  T479]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   24.030774][  T479]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.030776][  T479]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.030777][  T479]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   24.030781][  T479]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   24.030782][  T479]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.030784][  T479]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   24.030785][  T479]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   24.030787][  T479]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   24.030788][  T479]  ? filter_irq_stacks (kernel/stacktrace.c:402)
[   24.030790][  T479]  ? stack_depot_save_flags (lib/stackdepot.c:609 lib/stackdepot.c:676)
[   24.030792][  T479]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   24.030794][  T479]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   24.030795][  T479]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   24.030797][  T479]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   24.030798][  T479]  ? __netlink_lookup (./include/linux/rcupdate.h:850 ./include/linux/rhashtable.h:709 net/netlink/af_netlink.c:499)
[   24.030801][  T479]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.030802][  T479]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   24.030804][  T479]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   24.030806][  T479]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   24.030808][  T479]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.030810][  T479]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.030811][  T479]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   24.030813][  T479]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   24.030815][  T479]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   24.030817][  T479]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.030819][  T479]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   24.030821][  T479]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   24.030822][  T479]  ? copy_msghdr_from_user (net/socket.c:2650)
[   24.030824][  T479]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   24.030826][  T479]  ? move_addr_to_kernel (net/socket.c:258)
[   24.030827][  T479]  ? filter_irq_stacks (kernel/stacktrace.c:402)
[   24.030830][  T479]  ___sys_sendmsg (net/socket.c:2767)
[   24.030832][  T479]  ? copy_msghdr_from_user (net/socket.c:2619)
[   24.030837][  T479]  __sys_sendmsg (net/socket.c:2799)
[   24.030839][  T479]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   24.030842][  T479]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.030844][  T479]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   24.030845][  T479]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   24.030847][  T479]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   24.030849][  T479] RIP: 0033:0x7f10b47d154e
[   24.030851][  T479] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   24.030853][  T479] RSP: 002b:00007fffa639ab40 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   24.030857][  T479] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f10b47d154e
[   24.030858][  T479] RDX: 0000000000000000 RSI: 00007fffa639abf0 RDI: 0000000000000005
[   24.030859][  T479] RBP: 00007fffa639ab50 R08: 0000000000000000 R09: 0000000000000000
[   24.030860][  T479] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a910fb2


Finger prints:
__irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print
do_softirq:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars
__kmalloc_noprof:put_chars:hvc_console_print:console_emit_next_record:console_flush_one_record
__alloc_skb:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars
mark_lock_irq:mark_lock:mark_usage:__lock_acquire:console_trylock_spinning