======================================
| [    9.480910][  T186] softirqs last disabled at (49769): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [    9.480912][  T186] Preemption disabled at:
| [    9.480913][  T186] 0x0
| [    9.480923][  T186] Tainted: [W]=WARN
[    9.480924][  T186] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.480926][  T186] Call Trace:
[    9.480927][  T186]  <TASK>
[    9.480929][  T186]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[    9.480935][  T186]  __might_resched.cold (kernel/sched/core.c:9234)
[    9.480940][  T186]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[    9.480944][  T186]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[    9.480949][  T186]  __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))
[    9.480952][  T186]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[    9.480958][  T186]  ? 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)
[    9.480961][  T186]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[    9.480964][  T186]  put_chars (drivers/char/virtio_console.c:1176)
[    9.480969][  T186]  ? __send_to_port (drivers/char/virtio_console.c:654)
[    9.480970][  T186]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[    9.480976][  T186]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[    9.480981][  T186]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[    9.480987][  T186]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[    9.480989][  T186]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    9.480992][  T186]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[    9.480996][  T186]  console_emit_next_record (kernel/printk/printk.c:3183)
[    9.481000][  T186]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[    9.481002][  T186]  ? 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))
[    9.481005][  T186]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    9.481007][  T186]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[    9.481012][  T186]  console_flush_one_record (kernel/printk/printk.c:3268)
[    9.481016][  T186]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[    9.481018][  T186]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[    9.481023][  T186]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[    9.481026][  T186]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[    9.481028][  T186]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    9.481030][  T186]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[    9.481034][  T186]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[    9.481035][  T186]  ? vprintk_emit (kernel/printk/printk.c:2478)
[    9.481039][  T186]  vprintk_emit (kernel/printk/printk.c:2479)
[    9.481043][  T186]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[    9.481046][  T186]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[    9.481050][  T186]  _printk (kernel/printk/printk.c:2504)
[    9.481054][  T186]  ? snapshot_read.cold (user.c:?)
[    9.481056][  T186]  ? 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)
[    9.481059][  T186]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[    9.481063][  T186]  ? 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)
[    9.481066][  T186]  do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4))
[    9.481070][  T186]  ? exit_notify (kernel/exit.c:780)
[    9.481072][  T186]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[    9.481075][  T186]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    9.481079][  T186]  do_group_exit (kernel/exit.c:1151)
[    9.481082][  T186]  __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160)
[    9.481084][  T186]  x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232)
[    9.481086][  T186]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[    9.481089][  T186]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[    9.481092][  T186]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.481095][  T186] RIP: 0033:0x7f23336fe1b8
[    9.481097][  T186] Code: Unable to access opcode bytes at 0x7f23336fe18e.

Code starting with the faulting instruction
===========================================
[    9.481098][  T186] RSP: 002b:00007ffe364f7c48 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
[    9.481101][  T186] RAX: ffffffffffffffda RBX: 00007f233382ef88 RCX: 00007f23336fe1b8
[    9.481102][  T186] RDX: 00007f2333448fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000
[    9.481103][  T186] RBP: 00007ffe364f7ca0 R08: 0000000000000000 R09: 0000000000008010
[    9.481104][  T186] R10: 00007ffe364f7a60 R11: 0000000000000246 R12: 0000000000000001
[    9.481105][  T186] R13: 0000000000000000 R14: 00007f233382d680 R15: 00007f233382efa0
| [   11.441718][  T266] softirqs last disabled at (28094): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   11.441720][  T266] Preemption disabled at:
| [   11.441721][  T266] vprintk_emit (kernel/printk/printk.c:2471)
| [   11.441730][  T266] Tainted: [W]=WARN
[   11.441731][  T266] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.441732][  T266] Call Trace:
[   11.441734][  T266]  <TASK>
[   11.441735][  T266]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   11.441741][  T266]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   11.441743][  T266]  __might_resched.cold (kernel/sched/core.c:9234)
[   11.441748][  T266]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   11.441752][  T266]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   11.441757][  T266]  __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))
[   11.441760][  T266]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.441765][  T266]  ? 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)
[   11.441768][  T266]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.441771][  T266]  put_chars (drivers/char/virtio_console.c:1176)
[   11.441774][  T266]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   11.441778][  T266]  ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928)
[   11.441782][  T266]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   11.441785][  T266]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   11.441787][  T266]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.441788][  T266]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.441792][  T266]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   11.441794][  T266]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   11.441797][  T266]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.441801][  T266]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.441805][  T266]  console_emit_next_record (kernel/printk/printk.c:3183)
[   11.441809][  T266]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   11.441811][  T266]  ? 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))
[   11.441814][  T266]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.441816][  T266]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.441820][  T266]  console_flush_one_record (kernel/printk/printk.c:3268)
[   11.441824][  T266]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   11.441826][  T266]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.441831][  T266]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   11.441834][  T266]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   11.441835][  T266]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.441838][  T266]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   11.441841][  T266]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   11.441843][  T266]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   11.441846][  T266]  vprintk_emit (kernel/printk/printk.c:2479)
[   11.441850][  T266]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   11.441852][  T266]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   11.441854][  T266]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   11.441858][  T266]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   11.441862][  T266]  _printk (kernel/printk/printk.c:2504)
[   11.441865][  T266]  ? snapshot_read.cold (user.c:?)
[   11.441869][  T266]  ? br_multicast_flood (??:?) bridge
[   11.441882][  T266]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   11.441883][  T266]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   11.441884][  T266]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   11.441889][  T266] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   11.441898][  T266] br_init_port (net/bridge/br_stp_if.c:39) bridge
[   11.441906][  T266] new_nbp (net/bridge/br_if.c:449) bridge
[   11.441915][  T266] br_add_if (net/bridge/br_if.c:592) bridge
[   11.441922][  T266]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   11.441926][  T266]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   11.441929][  T266]  ? __kernel_text_address (kernel/extable.c:79)
[   11.441933][  T266]  do_set_master (net/core/rtnetlink.c:3071)
[   11.441938][  T266]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   11.441941][  T266]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   11.441944][  T266]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   11.441945][  T266]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   11.441947][  T266]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   11.441951][  T266]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   11.441953][  T266]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   11.441955][  T266]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   11.441958][  T266]  ? kasan_save_stack (mm/kasan/common.c:58)
[   11.441961][  T266]  ? kasan_save_stack (mm/kasan/common.c:57)
[   11.441962][  T266]  ? kasan_save_track (mm/kasan/common.c:78)
[   11.441967][  T266]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.441970][  T266]  ? netlink_seq_next (net/netlink/af_netlink.c:2685)
[   11.441973][  T266]  ? ___sys_sendmsg (net/socket.c:2757)
[   11.441978][  T266]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   11.441979][  T266]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   11.441982][  T266]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.441984][  T266]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.441986][  T266]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.441988][  T266]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.441990][  T266]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   11.441994][  T266]  ? __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)
[   11.441995][  T266]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   11.441997][  T266]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   11.442000][  T266]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   11.442002][  T266]  ? nla_get_range_signed (lib/nlattr.c:270)
[   11.442007][  T266]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   11.442012][  T266]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   11.442017][  T266]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   11.442019][  T266]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.442023][  T266]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   11.442025][  T266]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   11.442027][  T266]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   11.442029][  T266]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   11.442033][  T266]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   11.442035][  T266]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   11.442038][  T266]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   11.442039][  T266]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.442044][  T266]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   11.442045][  T266]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   11.442049][  T266]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   11.442051][  T266]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   11.442054][  T266]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   11.442060][  T266]  ? 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))
[   11.442061][  T266]  ? 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))
[   11.442065][  T266]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   11.442069][  T266]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   11.442072][  T266]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.442076][  T266]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   11.442079][  T266]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   11.442083][  T266]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   11.442088][  T266]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   11.442091][  T266]  ? copy_msghdr_from_user (net/socket.c:2650)
[   11.442093][  T266]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   11.442094][  T266]  ? move_addr_to_kernel (net/socket.c:258)
[   11.442102][  T266]  ___sys_sendmsg (net/socket.c:2767)
[   11.442105][  T266]  ? copy_msghdr_from_user (net/socket.c:2619)
[   11.442120][  T266]  __sys_sendmsg (net/socket.c:2799)
[   11.442123][  T266]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   11.442129][  T266]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.442133][  T266]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   11.442135][  T266]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   11.442138][  T266]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   11.442141][  T266] RIP: 0033:0x7f0c0fdb054e
[   11.442144][  T266] 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
[   11.442146][  T266] RSP: 002b:00007ffcf38413a0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   11.442149][  T266] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f0c0fdb054e
[   11.442150][  T266] RDX: 0000000000000000 RSI: 00007ffcf3841450 RDI: 0000000000000005
[   11.442151][  T266] RBP: 00007ffcf38413b0 R08: 0000000000000000 R09: 0000000000000000
[   11.442152][  T266] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a915bd7
[   11.442153][  T266] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffcf3841b10
| [   26.996062][    C0] softirqs last disabled at (8851): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   26.996064][    C0] Preemption disabled at:
| [   26.996064][    C0] 0x0
| [   26.996074][    C0] Tainted: [W]=WARN
[   26.996075][    C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   26.996077][    C0] Call Trace:
[   26.996078][    C0]  <IRQ>
[   26.996080][    C0]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   26.996085][    C0]  __might_resched.cold (kernel/sched/core.c:9234)
[   26.996089][    C0]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   26.996092][    C0]  ? __asan_memcpy (mm/kasan/shadow.c:106 (discriminator 1))
[   26.996095][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.996099][    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))
[   26.996102][    C0]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   26.996104][    C0]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   26.996108][    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)
[   26.996110][    C0]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   26.996111][    C0]  put_chars (drivers/char/virtio_console.c:1176)
[   26.996113][    C0]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   26.996115][    C0]  ? console_prepend_replay (kernel/printk/printk.c:3005)
[   26.996118][    C0]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   26.996122][    C0]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   26.996123][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.996125][    C0]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   26.996127][    C0]  console_emit_next_record (kernel/printk/printk.c:3183)
[   26.996129][    C0]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   26.996131][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.996133][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.996135][    C0]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   26.996136][    C0]  ? console_flush_one_record (kernel/printk/printk.c:3247)
[   26.996138][    C0]  console_flush_one_record (kernel/printk/printk.c:3268)
[   26.996140][    C0]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   26.996143][    C0]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   26.996145][    C0]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   26.996146][    C0]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   26.996148][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.996149][    C0]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   26.996151][    C0]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   26.996153][    C0]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   26.996155][    C0]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   26.996157][    C0]  vprintk_emit (kernel/printk/printk.c:2479)
[   26.996159][    C0]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   26.996161][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.996163][    C0]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   26.996165][    C0]  _printk (kernel/printk/printk.c:2504)
[   26.996168][    C0]  ? snapshot_read.cold (user.c:?)
[   26.996169][    C0]  ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26)
[   26.996173][    C0]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   26.996175][    C0]  ? nbcon_cpu_emergency_enter (./include/linux/instrumented.h:112 ./include/linux/atomic/atomic-instrumented.h:435 kernel/printk/nbcon.c:1723)
[   26.996177][    C0]  print_irq_inversion_bug.part.0 (kernel/locking/lockdep.c:4097 (discriminator 1))
[   26.996179][    C0]  mark_lock_irq (kernel/locking/lockdep.c:4095 kernel/locking/lockdep.c:4174 kernel/locking/lockdep.c:4310)
[   26.996182][    C0]  mark_lock (kernel/locking/lockdep.c:4769)
[   26.996184][    C0]  mark_usage (kernel/locking/lockdep.c:4658)
[   26.996186][    C0]  __lock_acquire (kernel/locking/lockdep.c:5208)
[   26.996188][    C0]  lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   26.996189][    C0]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   26.996202][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.996204][    C0]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   26.996206][    C0]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   26.996212][    C0]  _raw_spin_lock (./include/linux/spinlock_api_smp.h:190 (discriminator 1) kernel/locking/spinlock.c:173 (discriminator 1))
[   26.996214][    C0]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   26.996220][    C0] br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   26.996226][    C0]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   26.996232][    C0]  call_timer_fn (kernel/time/timer.c:1748)
[   26.996235][    C0]  ? detach_if_pending (./include/linux/list.h:1159)
[   26.996237][    C0]  ? debug_object_active_state (lib/debugobjects.c:1122)
[   26.996241][    C0]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   26.996243][    C0]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   26.996245][    C0]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   26.996246][    C0]  __run_timers (kernel/time/timer.c:1799 kernel/time/timer.c:2374)
[   26.996248][    C0]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   26.996255][    C0]  ? __bpf_trace_itimer_expire (./include/trace/events/timer.h:407)
[   26.996256][    C0]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   26.996259][    C0]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   26.996261][    C0]  run_timer_softirq (kernel/time/timer.c:2386 kernel/time/timer.c:2395 kernel/time/timer.c:2403)
[   26.996263][    C0]  ? __run_timers (./include/trace/events/timer.h:138 (discriminator 19))
[   26.996265][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.996267][    C0]  handle_softirqs (kernel/softirq.c:645)
[   26.996269][    C0]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   26.996270][    C0]  ? _local_bh_enable (kernel/softirq.c:428 (discriminator 1))
[   26.996272][    C0]  __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
[   26.996274][    C0]  irq_exit_rcu (kernel/softirq.c:784)
[   26.996275][    C0]  sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1062 (discriminator 37) arch/x86/kernel/apic/apic.c:1062 (discriminator 37))
[   26.996278][    C0]  </IRQ>
[   26.996278][    C0]  <TASK>
[   26.996279][    C0]  asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:674)
[   26.996281][    C0] RIP: 0010:_raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:210 (discriminator 12) kernel/locking/spinlock.c:221 (discriminator 12))
[   26.996284][    C0] Code: f5 53 48 8b 74 24 10 48 89 fb 48 83 c7 18 e8 c1 af ba fd 48 89 df e8 c9 05 bb fd f7 c5 00 02 00 00 75 1f 9c 58 f6 c4 02 75 2f <bf> 01 00 00 00 e8 70 cf ac fd 65 48 83 3d af 0b f3 01 00 74 12 5b
All code
========
   0:	f5                   	cmc
   1:	53                   	push   %rbx
   2:	48 8b 74 24 10       	mov    0x10(%rsp),%rsi
   7:	48 89 fb             	mov    %rdi,%rbx
   a:	48 83 c7 18          	add    $0x18,%rdi
   e:	e8 c1 af ba fd       	call   0xfffffffffdbaafd4
  13:	48 89 df             	mov    %rbx,%rdi
  16:	e8 c9 05 bb fd       	call   0xfffffffffdbb05e4
  1b:	f7 c5 00 02 00 00    	test   $0x200,%ebp
  21:	75 1f                	jne    0x42
  23:	9c                   	pushf
  24:	58                   	pop    %rax
  25:	f6 c4 02             	test   $0x2,%ah
  28:	75 2f                	jne    0x59
  2a:*	bf 01 00 00 00       	mov    $0x1,%edi		<-- trapping instruction
  2f:	e8 70 cf ac fd       	call   0xfffffffffdaccfa4
  34:	65 48 83 3d af 0b f3 	cmpq   $0x0,%gs:0x1f30baf(%rip)        # 0x1f30bec
  3b:	01 00 
  3d:	74 12                	je     0x51
  3f:	5b                   	pop    %rbx

Code starting with the faulting instruction
===========================================
   0:	bf 01 00 00 00       	mov    $0x1,%edi
   5:	e8 70 cf ac fd       	call   0xfffffffffdaccf7a
   a:	65 48 83 3d af 0b f3 	cmpq   $0x0,%gs:0x1f30baf(%rip)        # 0x1f30bc2
  11:	01 00 
  13:	74 12                	je     0x27
  15:	5b                   	pop    %rbx
[   26.996286][    C0] RSP: 0018:ffa00000027afc78 EFLAGS: 00000246
[   26.996289][    C0] RAX: 0000000000000092 RBX: ff11000001f96400 RCX: ffffffffb43a8483
[   26.996290][    C0] RDX: ff1100000c8ec6c0 RSI: ffffffffb4c38b01 RDI: ffffffffb468d8e0
[   26.996291][    C0] RBP: 0000000000000286 R08: 0000000000000000 R09: 0000000000000000
[   26.996292][    C0] R10: 0000000000000000 R11: 0000000000000001 R12: ff11000005fafe08
[   26.996293][    C0] R13: 0000000000000000 R14: ffa00000027afcc0 R15: ff11000004eb1cc0
[   26.996294][    C0]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:210 (discriminator 6) kernel/locking/spinlock.c:221 (discriminator 6))
[   26.996297][    C0]  qlist_free_all (mm/kasan/quarantine.c:163 (discriminator 2) mm/kasan/quarantine.c:179 (discriminator 2))
[   26.996298][    C0]  kasan_quarantine_reduce (mm/kasan/quarantine.c:286)
[   26.996300][    C0]  __kasan_slab_alloc (mm/kasan/common.c:350)
[   26.996303][    C0]  kmem_cache_alloc_noprof (./include/linux/kasan.h:253 mm/slub.c:4683 mm/slub.c:4996 mm/slub.c:5010)
[   26.996310][    C0]  ? do_getname.isra.0 (fs/namei.c:147 (discriminator 11) fs/namei.c:187 (discriminator 11))
[   26.996313][    C0]  do_getname.isra.0 (fs/namei.c:147 (discriminator 11) fs/namei.c:187 (discriminator 11))
[   26.996315][    C0]  ? vfs_fstatat (./include/linux/fs.h:2584 ./include/linux/fs.h:2588 fs/stat.c:368)
[   26.996317][    C0]  do_sys_openat2 (./include/linux/fs.h:2586 fs/open.c:1416)
[   26.996320][    C0]  ? build_open_flags (fs/open.c:1319 (discriminator 3))
[   26.996322][    C0]  __x64_sys_openat (fs/open.c:1423 fs/open.c:1439 fs/open.c:1434 fs/open.c:1434)
[   26.996324][    C0]  ? __ia32_sys_open (fs/open.c:1427)
[   26.996326][    C0]  ? fpregs_restore_userregs (./include/linux/instrumented.h:97 ./include/asm-generic/bitops/instrumented-atomic.h:41 ./include/linux/thread_info.h:109 arch/x86/kernel/fpu/context.h:79)
[   26.996328][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.996330][    C0]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   26.996332][    C0]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   26.996334][    C0]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   26.996336][    C0]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   26.996337][    C0] RIP: 0033:0x7f08c98f26e5
[   26.996339][    C0] Code: 48 89 e5 48 89 55 e0 41 83 e2 40 75 28 89 f2 f7 d2 81 e2 00 00 41 00 74 1c 89 f2 bf 9c ff ff ff 48 89 c6 b8 01 01 00 00 0f 05 <48> 3d 00 f0 ff ff 77 23 5d c3 90 48 8d 4d 10 c7 45 b8 10 00 00 00
All code
========
   0:	48 89 e5             	mov    %rsp,%rbp
   3:	48 89 55 e0          	mov    %rdx,-0x20(%rbp)
   7:	41 83 e2 40          	and    $0x40,%r10d
   b:	75 28                	jne    0x35
   d:	89 f2                	mov    %esi,%edx
   f:	f7 d2                	not    %edx
  11:	81 e2 00 00 41 00    	and    $0x410000,%edx
  17:	74 1c                	je     0x35
  19:	89 f2                	mov    %esi,%edx
  1b:	bf 9c ff ff ff       	mov    $0xffffff9c,%edi
  20:	48 89 c6             	mov    %rax,%rsi
  23:	b8 01 01 00 00       	mov    $0x101,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 23                	ja     0x55
  32:	5d                   	pop    %rbp
  33:	c3                   	ret
  34:	90                   	nop
  35:	48 8d 4d 10          	lea    0x10(%rbp),%rcx
  39:	c7 45 b8 10 00 00 00 	movl   $0x10,-0x48(%rbp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 23                	ja     0x2b
   8:	5d                   	pop    %rbp
   9:	c3                   	ret
   a:	90                   	nop
   b:	48 8d 4d 10          	lea    0x10(%rbp),%rcx
   f:	c7 45 b8 10 00 00 00 	movl   $0x10,-0x48(%rbp)
[   26.996340][    C0] RSP: 002b:00007fffcf687460 EFLAGS: 00000206 ORIG_RAX: 0000000000000101
[   26.996341][    C0] RAX: ffffffffffffffda RBX: 00007fffcf6876f0 RCX: 00007f08c98f26e5
[   26.996342][    C0] RDX: 0000000000080000 RSI: 00007fffcf6874e0 RDI: 00000000ffffff9c
[   26.996343][    C0] RBP: 00007fffcf687460 R08: 00007fffcf6876d7 R09: 0000000000000000
[   26.996344][    C0] R10: 0000000000000000 R11: 0000000000000206 R12: 00007fffcf6874e0
[   26.996345][    C0] R13: 00007fffcf6874e0 R14: 00007f08c98c4000 R15: 0000000000000000
| [   27.062656][    C0]
| [   27.062774][    C0]
| [   27.062774][    C0] stack backtrace:
| [   27.062957][    C0] Tainted: [W]=WARN
[   27.062958][    C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   27.062960][    C0] Call Trace:
[   27.062961][    C0]  <IRQ>
[   27.062962][    C0]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   27.062967][    C0]  print_irq_inversion_bug.part.0.cold (kernel/locking/lockdep.c:4141)
[   27.062970][    C0]  mark_lock_irq (kernel/locking/lockdep.c:4095 kernel/locking/lockdep.c:4174 kernel/locking/lockdep.c:4310)
[   27.062972][    C0]  mark_lock (kernel/locking/lockdep.c:4769)
[   27.062974][    C0]  mark_usage (kernel/locking/lockdep.c:4658)
[   27.062976][    C0]  __lock_acquire (kernel/locking/lockdep.c:5208)
[   27.062978][    C0]  lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   27.062980][    C0]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   27.062987][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.062990][    C0]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   27.062992][    C0]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   27.062998][    C0]  _raw_spin_lock (./include/linux/spinlock_api_smp.h:190 (discriminator 1) kernel/locking/spinlock.c:173 (discriminator 1))
[   27.063000][    C0]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   27.063006][    C0] br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   27.063012][    C0]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   27.063018][    C0]  call_timer_fn (kernel/time/timer.c:1748)
[   27.063020][    C0]  ? detach_if_pending (./include/linux/list.h:1159)
[   27.063022][    C0]  ? debug_object_active_state (lib/debugobjects.c:1122)
[   27.063025][    C0]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   27.063027][    C0]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   27.063029][    C0]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   27.063031][    C0]  __run_timers (kernel/time/timer.c:1799 kernel/time/timer.c:2374)
[   27.063033][    C0]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   27.063039][    C0]  ? __bpf_trace_itimer_expire (./include/trace/events/timer.h:407)
[   27.063041][    C0]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   27.063044][    C0]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   27.063046][    C0]  run_timer_softirq (kernel/time/timer.c:2386 kernel/time/timer.c:2395 kernel/time/timer.c:2403)
[   27.063048][    C0]  ? __run_timers (./include/trace/events/timer.h:138 (discriminator 19))
[   27.063050][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.063051][    C0]  handle_softirqs (kernel/softirq.c:645)
[   27.063053][    C0]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   27.063055][    C0]  ? _local_bh_enable (kernel/softirq.c:428 (discriminator 1))
[   27.063057][    C0]  __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
[   27.063058][    C0]  irq_exit_rcu (kernel/softirq.c:784)
[   27.063059][    C0]  sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1062 (discriminator 37) arch/x86/kernel/apic/apic.c:1062 (discriminator 37))
[   27.063061][    C0]  </IRQ>
[   27.063062][    C0]  <TASK>
[   27.063062][    C0]  asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:674)
[   27.063064][    C0] RIP: 0010:_raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:210 (discriminator 12) kernel/locking/spinlock.c:221 (discriminator 12))
[   27.063066][    C0] Code: f5 53 48 8b 74 24 10 48 89 fb 48 83 c7 18 e8 c1 af ba fd 48 89 df e8 c9 05 bb fd f7 c5 00 02 00 00 75 1f 9c 58 f6 c4 02 75 2f <bf> 01 00 00 00 e8 70 cf ac fd 65 48 83 3d af 0b f3 01 00 74 12 5b
All code
========
   0:	f5                   	cmc
   1:	53                   	push   %rbx
   2:	48 8b 74 24 10       	mov    0x10(%rsp),%rsi
   7:	48 89 fb             	mov    %rdi,%rbx
   a:	48 83 c7 18          	add    $0x18,%rdi
   e:	e8 c1 af ba fd       	call   0xfffffffffdbaafd4
  13:	48 89 df             	mov    %rbx,%rdi
  16:	e8 c9 05 bb fd       	call   0xfffffffffdbb05e4
  1b:	f7 c5 00 02 00 00    	test   $0x200,%ebp
  21:	75 1f                	jne    0x42
  23:	9c                   	pushf
  24:	58                   	pop    %rax
  25:	f6 c4 02             	test   $0x2,%ah
  28:	75 2f                	jne    0x59
  2a:*	bf 01 00 00 00       	mov    $0x1,%edi		<-- trapping instruction
  2f:	e8 70 cf ac fd       	call   0xfffffffffdaccfa4
  34:	65 48 83 3d af 0b f3 	cmpq   $0x0,%gs:0x1f30baf(%rip)        # 0x1f30bec
  3b:	01 00 
  3d:	74 12                	je     0x51
  3f:	5b                   	pop    %rbx

Code starting with the faulting instruction
===========================================
   0:	bf 01 00 00 00       	mov    $0x1,%edi
   5:	e8 70 cf ac fd       	call   0xfffffffffdaccf7a
   a:	65 48 83 3d af 0b f3 	cmpq   $0x0,%gs:0x1f30baf(%rip)        # 0x1f30bc2
  11:	01 00 
  13:	74 12                	je     0x27
  15:	5b                   	pop    %rbx
[   27.063068][    C0] RSP: 0018:ffa00000027afc78 EFLAGS: 00000246
[   27.063070][    C0] RAX: 0000000000000092 RBX: ff11000001f96400 RCX: ffffffffb43a8483
[   27.063071][    C0] RDX: ff1100000c8ec6c0 RSI: ffffffffb4c38b01 RDI: ffffffffb468d8e0
[   27.063072][    C0] RBP: 0000000000000286 R08: 0000000000000000 R09: 0000000000000000
[   27.063073][    C0] R10: 0000000000000000 R11: 0000000000000001 R12: ff11000005fafe08
[   27.063074][    C0] R13: 0000000000000000 R14: ffa00000027afcc0 R15: ff11000004eb1cc0
[   27.063075][    C0]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:210 (discriminator 6) kernel/locking/spinlock.c:221 (discriminator 6))
[   27.063077][    C0]  qlist_free_all (mm/kasan/quarantine.c:163 (discriminator 2) mm/kasan/quarantine.c:179 (discriminator 2))
[   27.063079][    C0]  kasan_quarantine_reduce (mm/kasan/quarantine.c:286)
[   27.063081][    C0]  __kasan_slab_alloc (mm/kasan/common.c:350)
[   27.063083][    C0]  kmem_cache_alloc_noprof (./include/linux/kasan.h:253 mm/slub.c:4683 mm/slub.c:4996 mm/slub.c:5010)
[   27.063084][    C0]  ? do_getname.isra.0 (fs/namei.c:147 (discriminator 11) fs/namei.c:187 (discriminator 11))
[   27.063086][    C0]  do_getname.isra.0 (fs/namei.c:147 (discriminator 11) fs/namei.c:187 (discriminator 11))
[   27.063087][    C0]  ? vfs_fstatat (./include/linux/fs.h:2584 ./include/linux/fs.h:2588 fs/stat.c:368)
[   27.063090][    C0]  do_sys_openat2 (./include/linux/fs.h:2586 fs/open.c:1416)
[   27.063091][    C0]  ? build_open_flags (fs/open.c:1319 (discriminator 3))
[   27.063094][    C0]  __x64_sys_openat (fs/open.c:1423 fs/open.c:1439 fs/open.c:1434 fs/open.c:1434)
[   27.063096][    C0]  ? __ia32_sys_open (fs/open.c:1427)
[   27.063098][    C0]  ? fpregs_restore_userregs (./include/linux/instrumented.h:97 ./include/asm-generic/bitops/instrumented-atomic.h:41 ./include/linux/thread_info.h:109 arch/x86/kernel/fpu/context.h:79)
[   27.063100][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.063102][    C0]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   27.063104][    C0]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   27.063105][    C0]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   27.063107][    C0]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   27.063108][    C0] RIP: 0033:0x7f08c98f26e5
[   27.063110][    C0] Code: 48 89 e5 48 89 55 e0 41 83 e2 40 75 28 89 f2 f7 d2 81 e2 00 00 41 00 74 1c 89 f2 bf 9c ff ff ff 48 89 c6 b8 01 01 00 00 0f 05 <48> 3d 00 f0 ff ff 77 23 5d c3 90 48 8d 4d 10 c7 45 b8 10 00 00 00
All code
========
   0:	48 89 e5             	mov    %rsp,%rbp
   3:	48 89 55 e0          	mov    %rdx,-0x20(%rbp)
   7:	41 83 e2 40          	and    $0x40,%r10d
   b:	75 28                	jne    0x35
   d:	89 f2                	mov    %esi,%edx
   f:	f7 d2                	not    %edx
  11:	81 e2 00 00 41 00    	and    $0x410000,%edx
  17:	74 1c                	je     0x35
  19:	89 f2                	mov    %esi,%edx
  1b:	bf 9c ff ff ff       	mov    $0xffffff9c,%edi
  20:	48 89 c6             	mov    %rax,%rsi
  23:	b8 01 01 00 00       	mov    $0x101,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 23                	ja     0x55
  32:	5d                   	pop    %rbp
  33:	c3                   	ret
  34:	90                   	nop
  35:	48 8d 4d 10          	lea    0x10(%rbp),%rcx
  39:	c7 45 b8 10 00 00 00 	movl   $0x10,-0x48(%rbp)

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 23                	ja     0x2b
   8:	5d                   	pop    %rbp
   9:	c3                   	ret
   a:	90                   	nop
   b:	48 8d 4d 10          	lea    0x10(%rbp),%rcx
   f:	c7 45 b8 10 00 00 00 	movl   $0x10,-0x48(%rbp)
[   27.063111][    C0] RSP: 002b:00007fffcf687460 EFLAGS: 00000206 ORIG_RAX: 0000000000000101
[   27.063113][    C0] RAX: ffffffffffffffda RBX: 00007fffcf6876f0 RCX: 00007f08c98f26e5
[   27.063114][    C0] RDX: 0000000000080000 RSI: 00007fffcf6874e0 RDI: 00000000ffffff9c
[   27.063114][    C0] RBP: 00007fffcf687460 R08: 00007fffcf6876d7 R09: 0000000000000000
[   27.063115][    C0] R10: 0000000000000000 R11: 0000000000000206 R12: 00007fffcf6874e0
[   27.063116][    C0] R13: 00007fffcf6874e0 R14: 00007f08c98c4000 R15: 0000000000000000
| [   50.613632][ T2057] softirqs last disabled at (0): 0x0
| [   50.613633][ T2057] Preemption disabled at:
| [   50.613634][ T2057] 0x0
| [   50.613642][ T2057] Tainted: [W]=WARN
[   50.613643][ T2057] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   50.613645][ T2057] Call Trace:
[   50.613646][ T2057]  <TASK>
[   50.613648][ T2057]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   50.613653][ T2057]  __might_resched.cold (kernel/sched/core.c:9234)
[   50.613657][ T2057]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   50.613661][ T2057]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   50.613664][ T2057]  __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))
[   50.613668][ T2057]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   50.613671][ T2057]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   50.613674][ T2057]  ? 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)
[   50.613676][ T2057]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   50.613678][ T2057]  put_chars (drivers/char/virtio_console.c:1176)
[   50.613680][ T2057]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   50.613681][ T2057]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   50.613685][ T2057]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   50.613688][ T2057]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   50.613690][ T2057]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   50.613691][ T2057]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   50.613693][ T2057]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   50.613695][ T2057]  console_emit_next_record (kernel/printk/printk.c:3183)
[   50.613698][ T2057]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   50.613699][ T2057]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   50.613701][ T2057]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   50.613703][ T2057]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   50.613704][ T2057]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   50.613706][ T2057]  ? console_flush_one_record (kernel/printk/printk.c:3247)
[   50.613708][ T2057]  console_flush_one_record (kernel/printk/printk.c:3268)
[   50.613710][ T2057]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   50.613713][ T2057]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   50.613714][ T2057]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   50.613716][ T2057]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   50.613717][ T2057]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   50.613719][ T2057]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   50.613720][ T2057]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   50.613722][ T2057]  ? __rcu_read_lock (kernel/rcu/tree_plugin.h:391 (discriminator 6) kernel/rcu/tree_plugin.h:414 (discriminator 6))
[   50.613724][ T2057]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   50.613725][ T2057]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   50.613727][ T2057]  vprintk_emit (kernel/printk/printk.c:2479)
[   50.613730][ T2057]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   50.613731][ T2057]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   50.613733][ T2057]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   50.613735][ T2057]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:78)
[   50.613737][ T2057]  _printk (kernel/printk/printk.c:2504)
[   50.613740][ T2057]  ? snapshot_read.cold (user.c:?)
[   50.613742][ T2057]  ? ipv6_mc_down (net/ipv6/mcast.c:1137 net/ipv6/mcast.c:2792)
[   50.613747][ T2057] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   50.613759][ T2057] br_stp_disable_port (net/bridge/br_stp_if.c:106) bridge
[   50.613767][ T2057] br_device_event (net/bridge/br.c:111) bridge
[   50.613775][ T2057]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   50.613779][ T2057]  ? _sub_I_65535_1+0x4d0/0x4d0 stp
[   50.613781][ T2057]  ? addrconf_notify (net/ipv6/addrconf.c:3812)
[   50.613784][ T2057]  notifier_call_chain (kernel/notifier.c:85)
[   50.613787][ T2057]  __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9855)
[   50.613790][ T2057]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   50.613792][ T2057]  ? netif_change_name (net/core/dev.c:1517)
[   50.613794][ T2057]  ? netif_set_allmulti (./include/net/netdev_lock.h:30 (discriminator 1))
[   50.613796][ T2057]  ? __kernel_text_address (kernel/extable.c:79)
[   50.613798][ T2057]  ? write_profile (profile.c:?)
[   50.613800][ T2057]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   50.613803][ T2057]  netif_change_flags (net/core/dev.c:9882)
[   50.613805][ T2057]  do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1))
[   50.613808][ T2057]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   50.613810][ T2057]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   50.613811][ T2057]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   50.613812][ T2057]  ? stack_depot_save_flags (lib/stackdepot.c:609 lib/stackdepot.c:676)
[   50.613816][ T2057]  ? kasan_save_stack (mm/kasan/common.c:58)
[   50.613819][ T2057]  ? kasan_save_stack (mm/kasan/common.c:57)
[   50.613820][ T2057]  ? kasan_save_track (mm/kasan/common.c:78)
[   50.613821][ T2057]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   50.613823][ T2057]  ? __kmalloc_cache_noprof (./include/linux/kasan.h:263 mm/slub.c:5563)
[   50.613825][ T2057]  ? rtnl_newlink (./include/linux/slab.h:991 (discriminator 1) net/core/rtnetlink.c:4113 (discriminator 1))
[   50.613826][ T2057]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   50.613827][ T2057]  ? netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   50.613829][ T2057]  ? netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   50.613831][ T2057]  ? netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   50.613832][ T2057]  ? ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   50.613834][ T2057]  ? ___sys_sendmsg (net/socket.c:2767)
[   50.613836][ T2057]  ? __sys_sendmsg (net/socket.c:2799)
[   50.613837][ T2057]  ? do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   50.613839][ T2057]  ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   50.613842][ T2057]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   50.613843][ T2057]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   50.613845][ T2057]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   50.613846][ T2057]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   50.613848][ T2057]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   50.613851][ T2057]  ? __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)
[   50.613853][ T2057]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   50.613854][ T2057]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   50.613855][ T2057]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   50.613857][ T2057]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   50.613860][ T2057]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   50.613861][ T2057]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   50.613863][ T2057]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   50.613864][ T2057]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   50.613866][ T2057]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   50.613868][ T2057]  ? is_bpf_text_address (./include/linux/rcupdate.h:850 kernel/bpf/core.c:749)
[   50.613871][ T2057]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   50.613872][ T2057]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   50.613874][ T2057]  ? __kernel_text_address (kernel/extable.c:79)
[   50.613875][ T2057]  ? write_profile (profile.c:?)
[   50.613876][ T2057]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   50.613877][ T2057]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   50.613879][ T2057]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   50.613881][ T2057]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   50.613884][ T2057]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   50.613885][ T2057]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   50.613887][ T2057]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   50.613888][ T2057]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   50.613890][ T2057]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   50.613891][ T2057]  ? filter_irq_stacks (kernel/stacktrace.c:402)
[   50.613893][ T2057]  ? stack_depot_save_flags (lib/stackdepot.c:609 lib/stackdepot.c:676)
[   50.613895][ T2057]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   50.613897][ T2057]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   50.613898][ T2057]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   50.613899][ T2057]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   50.613901][ T2057]  ? __netlink_lookup (./include/linux/rcupdate.h:850 ./include/linux/rhashtable.h:709 net/netlink/af_netlink.c:499)
[   50.613903][ T2057]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   50.613905][ T2057]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   50.613907][ T2057]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   50.613908][ T2057]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   50.613910][ T2057]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   50.613912][ T2057]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   50.613913][ T2057]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   50.613915][ T2057]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   50.613917][ T2057]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   50.613919][ T2057]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   50.613920][ T2057]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   50.613922][ T2057]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   50.613924][ T2057]  ? copy_msghdr_from_user (net/socket.c:2650)
[   50.613925][ T2057]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   50.613927][ T2057]  ? move_addr_to_kernel (net/socket.c:258)
[   50.613928][ T2057]  ? filter_irq_stacks (kernel/stacktrace.c:402)
[   50.613931][ T2057]  ___sys_sendmsg (net/socket.c:2767)
[   50.613932][ T2057]  ? copy_msghdr_from_user (net/socket.c:2619)
[   50.613937][ T2057]  __sys_sendmsg (net/socket.c:2799)
[   50.613939][ T2057]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   50.613942][ T2057]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   50.613944][ T2057]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   50.613945][ T2057]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   50.613947][ T2057]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   50.613949][ T2057] RIP: 0033:0x7f0dc080b54e
[   50.613951][ T2057] 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
[   50.613953][ T2057] RSP: 002b:00007ffec71e2da0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   50.613957][ T2057] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f0dc080b54e
[   50.613958][ T2057] RDX: 0000000000000000 RSI: 00007ffec71e2e50 RDI: 0000000000000005
[   50.613959][ T2057] RBP: 00007ffec71e2db0 R08: 0000000000000000 R09: 0000000000000000
[   50.613960][ T2057] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a915bff
[   50.613960][ T2057] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffec71e3510
| [   88.001459][ T3880] softirqs last disabled at (0): 0x0
| [   88.001461][ T3880] Preemption disabled at:
| [   88.001462][ T3880] 0x0
| [   88.001469][ T3880] Tainted: [W]=WARN
[   88.001470][ T3880] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   88.001472][ T3880] Call Trace:
[   88.001473][ T3880]  <TASK>
[   88.001475][ T3880]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   88.001480][ T3880]  __might_resched.cold (kernel/sched/core.c:9234)
[   88.001483][ T3880]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   88.001487][ T3880]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   88.001491][ T3880]  __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))
[   88.001494][ T3880]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   88.001497][ T3880]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   88.001500][ T3880]  ? 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)
[   88.001502][ T3880]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   88.001504][ T3880]  put_chars (drivers/char/virtio_console.c:1176)
[   88.001506][ T3880]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   88.001508][ T3880]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   88.001511][ T3880]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   88.001514][ T3880]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   88.001516][ T3880]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   88.001518][ T3880]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   88.001520][ T3880]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   88.001522][ T3880]  console_emit_next_record (kernel/printk/printk.c:3183)
[   88.001524][ T3880]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   88.001526][ T3880]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   88.001527][ T3880]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   88.001529][ T3880]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   88.001531][ T3880]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   88.001532][ T3880]  ? console_flush_one_record (kernel/printk/printk.c:3247)
[   88.001534][ T3880]  console_flush_one_record (kernel/printk/printk.c:3268)
[   88.001536][ T3880]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   88.001539][ T3880]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   88.001541][ T3880]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   88.001542][ T3880]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   88.001544][ T3880]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   88.001545][ T3880]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   88.001547][ T3880]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   88.001548][ T3880]  ? __rcu_read_lock (kernel/rcu/tree_plugin.h:391 (discriminator 6) kernel/rcu/tree_plugin.h:414 (discriminator 6))
[   88.001550][ T3880]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   88.001552][ T3880]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   88.001554][ T3880]  vprintk_emit (kernel/printk/printk.c:2479)
[   88.001556][ T3880]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   88.001558][ T3880]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   88.001559][ T3880]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   88.001562][ T3880]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:78)
[   88.001563][ T3880]  _printk (kernel/printk/printk.c:2504)
[   88.001566][ T3880]  ? snapshot_read.cold (user.c:?)
[   88.001568][ T3880]  ? ipv6_mc_down (net/ipv6/mcast.c:1137 net/ipv6/mcast.c:2792)
[   88.001573][ T3880] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   88.001586][ T3880] br_stp_disable_port (net/bridge/br_stp_if.c:106) bridge
[   88.001593][ T3880] br_device_event (net/bridge/br.c:111) bridge
[   88.001602][ T3880]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   88.001605][ T3880]  ? _sub_I_65535_1+0x4d0/0x4d0 stp
[   88.001608][ T3880]  ? addrconf_notify (net/ipv6/addrconf.c:3812)
[   88.001611][ T3880]  notifier_call_chain (kernel/notifier.c:85)
[   88.001614][ T3880]  __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9855)
[   88.001617][ T3880]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   88.001619][ T3880]  ? netif_change_name (net/core/dev.c:1517)
[   88.001621][ T3880]  ? netif_set_allmulti (./include/net/netdev_lock.h:30 (discriminator 1))
[   88.001623][ T3880]  ? __kernel_text_address (kernel/extable.c:79)
[   88.001625][ T3880]  ? write_profile (profile.c:?)
[   88.001627][ T3880]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   88.001630][ T3880]  netif_change_flags (net/core/dev.c:9882)
[   88.001632][ T3880]  do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1))
[   88.001635][ T3880]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   88.001636][ T3880]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   88.001637][ T3880]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   88.001639][ T3880]  ? stack_depot_save_flags (lib/stackdepot.c:609 lib/stackdepot.c:676)
[   88.001642][ T3880]  ? kasan_save_stack (mm/kasan/common.c:58)
[   88.001645][ T3880]  ? kasan_save_stack (mm/kasan/common.c:57)
[   88.001646][ T3880]  ? kasan_save_track (mm/kasan/common.c:78)
[   88.001648][ T3880]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   88.001649][ T3880]  ? __kmalloc_cache_noprof (./include/linux/kasan.h:263 mm/slub.c:5563)
[   88.001651][ T3880]  ? rtnl_newlink (./include/linux/slab.h:991 (discriminator 1) net/core/rtnetlink.c:4113 (discriminator 1))
[   88.001652][ T3880]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   88.001653][ T3880]  ? netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   88.001656][ T3880]  ? netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   88.001657][ T3880]  ? netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   88.001658][ T3880]  ? ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   88.001661][ T3880]  ? ___sys_sendmsg (net/socket.c:2767)
[   88.001662][ T3880]  ? __sys_sendmsg (net/socket.c:2799)
[   88.001664][ T3880]  ? do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   88.001665][ T3880]  ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   88.001668][ T3880]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   88.001669][ T3880]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   88.001671][ T3880]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   88.001672][ T3880]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   88.001674][ T3880]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   88.001677][ T3880]  ? __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)
[   88.001678][ T3880]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   88.001680][ T3880]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   88.001681][ T3880]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   88.001683][ T3880]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   88.001685][ T3880]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   88.001687][ T3880]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   88.001689][ T3880]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   88.001690][ T3880]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   88.001691][ T3880]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   88.001693][ T3880]  ? is_bpf_text_address (./include/linux/rcupdate.h:850 kernel/bpf/core.c:749)
[   88.001696][ T3880]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   88.001698][ T3880]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   88.001699][ T3880]  ? __kernel_text_address (kernel/extable.c:79)
[   88.001700][ T3880]  ? write_profile (profile.c:?)
[   88.001701][ T3880]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   88.001703][ T3880]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   88.001704][ T3880]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   88.001706][ T3880]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   88.001709][ T3880]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   88.001710][ T3880]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   88.001712][ T3880]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   88.001713][ T3880]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   88.001715][ T3880]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   88.001716][ T3880]  ? filter_irq_stacks (kernel/stacktrace.c:402)
[   88.001718][ T3880]  ? stack_depot_save_flags (lib/stackdepot.c:609 lib/stackdepot.c:676)
[   88.001720][ T3880]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   88.001721][ T3880]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   88.001723][ T3880]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   88.001724][ T3880]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   88.001725][ T3880]  ? __netlink_lookup (./include/linux/rcupdate.h:850 ./include/linux/rhashtable.h:709 net/netlink/af_netlink.c:499)
[   88.001728][ T3880]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   88.001730][ T3880]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   88.001731][ T3880]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   88.001733][ T3880]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   88.001735][ T3880]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   88.001736][ T3880]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   88.001738][ T3880]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   88.001740][ T3880]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   88.001742][ T3880]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   88.001743][ T3880]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   88.001745][ T3880]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   88.001747][ T3880]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   88.001748][ T3880]  ? copy_msghdr_from_user (net/socket.c:2650)
[   88.001750][ T3880]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   88.001751][ T3880]  ? move_addr_to_kernel (net/socket.c:258)
[   88.001753][ T3880]  ? filter_irq_stacks (kernel/stacktrace.c:402)
[   88.001755][ T3880]  ___sys_sendmsg (net/socket.c:2767)
[   88.001757][ T3880]  ? copy_msghdr_from_user (net/socket.c:2619)
[   88.001762][ T3880]  __sys_sendmsg (net/socket.c:2799)
[   88.001763][ T3880]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   88.001766][ T3880]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   88.001768][ T3880]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   88.001769][ T3880]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   88.001771][ T3880]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   88.001773][ T3880] RIP: 0033:0x7f8d56eee54e
[   88.001775][ T3880] 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
[   88.001777][ T3880] RSP: 002b:00007ffcaee5a3c0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   88.001781][ T3880] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f8d56eee54e
[   88.001782][ T3880] RDX: 0000000000000000 RSI: 00007ffcaee5a470 RDI: 0000000000000005
[   88.001783][ T3880] RBP: 00007ffcaee5a3d0 R08: 0000000000000000 R09: 0000000000000000
[   88.001784][ T3880] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a915c24
[   88.001785][ T3880] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffcaee5ab30
| [  162.935441][ T7759] softirqs last disabled at (0): 0x0
| [  162.935443][ T7759] Preemption disabled at:
| [  162.935443][ T7759] 0x0
| [  162.935451][ T7759] Tainted: [W]=WARN
[  162.935452][ T7759] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  162.935453][ T7759] Call Trace:
[  162.935455][ T7759]  <TASK>
[  162.935456][ T7759]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[  162.935462][ T7759]  __might_resched.cold (kernel/sched/core.c:9234)
[  162.935465][ T7759]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[  162.935469][ T7759]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  162.935473][ T7759]  __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))
[  162.935476][ T7759]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[  162.935479][ T7759]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[  162.935483][ T7759]  ? 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)
[  162.935485][ T7759]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[  162.935486][ T7759]  put_chars (drivers/char/virtio_console.c:1176)
[  162.935488][ T7759]  ? __send_to_port (drivers/char/virtio_console.c:654)
[  162.935490][ T7759]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[  162.935493][ T7759]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[  162.935496][ T7759]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[  162.935498][ T7759]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[  162.935500][ T7759]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  162.935501][ T7759]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  162.935503][ T7759]  console_emit_next_record (kernel/printk/printk.c:3183)
[  162.935506][ T7759]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[  162.935508][ T7759]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  162.935509][ T7759]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  162.935511][ T7759]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  162.935513][ T7759]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  162.935514][ T7759]  ? console_flush_one_record (kernel/printk/printk.c:3247)
[  162.935516][ T7759]  console_flush_one_record (kernel/printk/printk.c:3268)
[  162.935518][ T7759]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[  162.935521][ T7759]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[  162.935523][ T7759]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  162.935524][ T7759]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[  162.935526][ T7759]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  162.935527][ T7759]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[  162.935528][ T7759]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[  162.935530][ T7759]  ? __rcu_read_lock (kernel/rcu/tree_plugin.h:391 (discriminator 6) kernel/rcu/tree_plugin.h:414 (discriminator 6))
[  162.935532][ T7759]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[  162.935534][ T7759]  ? vprintk_emit (kernel/printk/printk.c:2478)
[  162.935536][ T7759]  vprintk_emit (kernel/printk/printk.c:2479)
[  162.935538][ T7759]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[  162.935540][ T7759]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  162.935541][ T7759]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[  162.935544][ T7759]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:78)
[  162.935546][ T7759]  _printk (kernel/printk/printk.c:2504)
[  162.935549][ T7759]  ? snapshot_read.cold (user.c:?)
[  162.935551][ T7759]  ? ipv6_mc_down (net/ipv6/mcast.c:1137 net/ipv6/mcast.c:2792)
[  162.935555][ T7759] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[  162.935569][ T7759] br_stp_disable_port (net/bridge/br_stp_if.c:106) bridge
[  162.935577][ T7759] br_device_event (net/bridge/br.c:111) bridge
[  162.935585][ T7759]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[  162.935589][ T7759]  ? _sub_I_65535_1+0x4d0/0x4d0 stp
[  162.935591][ T7759]  ? addrconf_notify (net/ipv6/addrconf.c:3812)
[  162.935594][ T7759]  notifier_call_chain (kernel/notifier.c:85)
[  162.935597][ T7759]  __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9855)
[  162.935601][ T7759]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[  162.935603][ T7759]  ? netif_change_name (net/core/dev.c:1517)
[  162.935605][ T7759]  ? netif_set_allmulti (./include/net/netdev_lock.h:30 (discriminator 1))
[  162.935607][ T7759]  ? __kernel_text_address (kernel/extable.c:79)
[  162.935609][ T7759]  ? write_profile (profile.c:?)
[  162.935611][ T7759]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[  162.935614][ T7759]  netif_change_flags (net/core/dev.c:9882)
[  162.935616][ T7759]  do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1))
[  162.935619][ T7759]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[  162.935620][ T7759]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[  162.935622][ T7759]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  162.935623][ T7759]  ? stack_depot_save_flags (lib/stackdepot.c:609 lib/stackdepot.c:676)
[  162.935627][ T7759]  ? kasan_save_stack (mm/kasan/common.c:58)
[  162.935630][ T7759]  ? kasan_save_stack (mm/kasan/common.c:57)
[  162.935631][ T7759]  ? kasan_save_track (mm/kasan/common.c:78)
[  162.935632][ T7759]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[  162.935634][ T7759]  ? __kmalloc_cache_noprof (./include/linux/kasan.h:263 mm/slub.c:5563)
[  162.935635][ T7759]  ? rtnl_newlink (./include/linux/slab.h:991 (discriminator 1) net/core/rtnetlink.c:4113 (discriminator 1))
[  162.935637][ T7759]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[  162.935638][ T7759]  ? netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[  162.935640][ T7759]  ? netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[  162.935642][ T7759]  ? netlink_sendmsg (net/netlink/af_netlink.c:1900)
[  162.935643][ T7759]  ? ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[  162.935645][ T7759]  ? ___sys_sendmsg (net/socket.c:2767)
[  162.935647][ T7759]  ? __sys_sendmsg (net/socket.c:2799)
[  162.935648][ T7759]  ? do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[  162.935650][ T7759]  ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[  162.935653][ T7759]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  162.935654][ T7759]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  162.935656][ T7759]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  162.935657][ T7759]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  162.935659][ T7759]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[  162.935662][ T7759]  ? __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)
[  162.935663][ T7759]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[  162.935664][ T7759]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[  162.935666][ T7759]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[  162.935668][ T7759]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[  162.935670][ T7759]  rtnl_newlink (net/core/rtnetlink.c:4215)
[  162.935672][ T7759]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  162.935674][ T7759]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[  162.935675][ T7759]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  162.935676][ T7759]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  162.935678][ T7759]  ? is_bpf_text_address (./include/linux/rcupdate.h:850 kernel/bpf/core.c:749)
[  162.935681][ T7759]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[  162.935683][ T7759]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[  162.935684][ T7759]  ? __kernel_text_address (kernel/extable.c:79)
[  162.935686][ T7759]  ? write_profile (profile.c:?)
[  162.935687][ T7759]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[  162.935688][ T7759]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  162.935690][ T7759]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  162.935692][ T7759]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[  162.935695][ T7759]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  162.935696][ T7759]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  162.935698][ T7759]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[  162.935699][ T7759]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[  162.935701][ T7759]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[  162.935702][ T7759]  ? filter_irq_stacks (kernel/stacktrace.c:402)
[  162.935704][ T7759]  ? stack_depot_save_flags (lib/stackdepot.c:609 lib/stackdepot.c:676)
[  162.935706][ T7759]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[  162.935707][ T7759]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[  162.935709][ T7759]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[  162.935710][ T7759]  ? netlink_ack (./include/linux/skbuff.h:2718)
[  162.935711][ T7759]  ? __netlink_lookup (./include/linux/rcupdate.h:850 ./include/linux/rhashtable.h:709 net/netlink/af_netlink.c:499)
[  162.935714][ T7759]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  162.935716][ T7759]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[  162.935717][ T7759]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[  162.935719][ T7759]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[  162.935721][ T7759]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  162.935723][ T7759]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  162.935724][ T7759]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  162.935726][ T7759]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[  162.935728][ T7759]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[  162.935730][ T7759]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  162.935731][ T7759]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[  162.935733][ T7759]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[  162.935735][ T7759]  ? copy_msghdr_from_user (net/socket.c:2650)
[  162.935736][ T7759]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[  162.935738][ T7759]  ? move_addr_to_kernel (net/socket.c:258)
[  162.935739][ T7759]  ? filter_irq_stacks (kernel/stacktrace.c:402)
[  162.935742][ T7759]  ___sys_sendmsg (net/socket.c:2767)
[  162.935743][ T7759]  ? copy_msghdr_from_user (net/socket.c:2619)
[  162.935748][ T7759]  __sys_sendmsg (net/socket.c:2799)
[  162.935750][ T7759]  ? __sys_sendmsg_sock (net/socket.c:2780)
[  162.935753][ T7759]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  162.935755][ T7759]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[  162.935756][ T7759]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[  162.935758][ T7759]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[  162.935760][ T7759] RIP: 0033:0x7f30fdfce54e
[  162.935762][ T7759] 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
[  162.935764][ T7759] RSP: 002b:00007ffdbf8da0f0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[  162.935767][ T7759] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f30fdfce54e
[  162.935769][ T7759] RDX: 0000000000000000 RSI: 00007ffdbf8da1a0 RDI: 0000000000000005
[  162.935770][ T7759] RBP: 00007ffdbf8da100 R08: 0000000000000000 R09: 0000000000000000
[  162.935770][ T7759] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a915c6f
[  162.935771][ T7759] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffdbf8da860
| [  168.559973][ T7809] softirqs last disabled at (0): 0x0
| [  168.559975][ T7809] Preemption disabled at:
| [  168.559976][ T7809] 0x0
| [  168.559984][ T7809] Tainted: [W]=WARN
[  168.559985][ T7809] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  168.559987][ T7809] Call Trace:
[  168.559988][ T7809]  <TASK>
[  168.559990][ T7809]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[  168.559995][ T7809]  __might_resched.cold (kernel/sched/core.c:9234)
[  168.559999][ T7809]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[  168.560002][ T7809]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  168.560006][ T7809]  __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))
[  168.560010][ T7809]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[  168.560013][ T7809]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[  168.560017][ T7809]  ? 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)
[  168.560019][ T7809]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[  168.560021][ T7809]  put_chars (drivers/char/virtio_console.c:1176)
[  168.560023][ T7809]  ? desc_read_finalized_seq (kernel/printk/printk_ringbuffer.c:1934)
[  168.560025][ T7809]  ? __send_to_port (drivers/char/virtio_console.c:654)
[  168.560027][ T7809]  ? console_prepend_replay (kernel/printk/printk.c:3005)
[  168.560030][ T7809]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[  168.560033][ T7809]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[  168.560034][ T7809]  ? 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)
[  168.560036][ T7809]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[  168.560037][ T7809]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  168.560039][ T7809]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  168.560040][ T7809]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  168.560043][ T7809]  console_emit_next_record (kernel/printk/printk.c:3183)
[  168.560045][ T7809]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[  168.560047][ T7809]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  168.560049][ T7809]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  168.560050][ T7809]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  168.560052][ T7809]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  168.560054][ T7809]  ? console_flush_one_record (kernel/printk/printk.c:3247)
[  168.560055][ T7809]  console_flush_one_record (kernel/printk/printk.c:3268)
[  168.560057][ T7809]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[  168.560060][ T7809]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[  168.560062][ T7809]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  168.560063][ T7809]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[  168.560065][ T7809]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  168.560066][ T7809]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[  168.560068][ T7809]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[  168.560069][ T7809]  ? __rcu_read_lock (kernel/rcu/tree_plugin.h:391 (discriminator 6) kernel/rcu/tree_plugin.h:414 (discriminator 6))
[  168.560071][ T7809]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[  168.560073][ T7809]  ? vprintk_emit (kernel/printk/printk.c:2478)
[  168.560075][ T7809]  vprintk_emit (kernel/printk/printk.c:2479)
[  168.560078][ T7809]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[  168.560080][ T7809]  ? debug_object_assert_init (lib/debugobjects.c:1072 (discriminator 3))
[  168.560084][ T7809]  ? debug_object_activate (lib/debugobjects.c:884)
[  168.560086][ T7809]  _printk (kernel/printk/printk.c:2504)
[  168.560089][ T7809]  ? snapshot_read.cold (user.c:?)
[  168.560091][ T7809]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[  168.560093][ T7809]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  168.560094][ T7809]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[  168.560098][ T7809] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[  168.560110][ T7809] br_stp_disable_port (net/bridge/br_stp_if.c:106) bridge
[  168.560118][ T7809] br_stp_disable_bridge (net/bridge/br_stp_if.c:76) bridge
[  168.560125][ T7809] br_dev_stop (net/bridge/br_device.c:193) bridge
[  168.560133][ T7809]  ? rtnl_is_locked (net/core/rtnetlink.c:169)
[  168.560136][ T7809]  __dev_close_many (net/core/dev.c:1798)
[  168.560140][ T7809]  ? netif_open (net/core/dev.c:1755)
[  168.560141][ T7809]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  168.560143][ T7809]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[  168.560145][ T7809]  __dev_change_flags (net/core/dev.c:1811 net/core/dev.c:9810)
[  168.560147][ T7809]  ? netif_set_allmulti (./include/net/netdev_lock.h:30 (discriminator 1))
[  168.560149][ T7809]  ? __kernel_text_address (kernel/extable.c:79)
[  168.560151][ T7809]  ? write_profile (profile.c:?)
[  168.560153][ T7809]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[  168.560156][ T7809]  netif_change_flags (net/core/dev.c:9877)
[  168.560158][ T7809]  do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1))
[  168.560161][ T7809]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[  168.560162][ T7809]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[  168.560163][ T7809]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  168.560165][ T7809]  ? stack_depot_save_flags (lib/stackdepot.c:609 lib/stackdepot.c:676)
[  168.560168][ T7809]  ? kasan_save_stack (mm/kasan/common.c:58)
[  168.560171][ T7809]  ? kasan_save_stack (mm/kasan/common.c:57)
[  168.560172][ T7809]  ? kasan_save_track (mm/kasan/common.c:78)
[  168.560174][ T7809]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[  168.560175][ T7809]  ? __kmalloc_cache_noprof (./include/linux/kasan.h:263 mm/slub.c:5563)
[  168.560177][ T7809]  ? rtnl_newlink (./include/linux/slab.h:991 (discriminator 1) net/core/rtnetlink.c:4113 (discriminator 1))
[  168.560178][ T7809]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[  168.560179][ T7809]  ? netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[  168.560181][ T7809]  ? netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[  168.560183][ T7809]  ? netlink_sendmsg (net/netlink/af_netlink.c:1900)
[  168.560184][ T7809]  ? ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[  168.560187][ T7809]  ? ___sys_sendmsg (net/socket.c:2767)
[  168.560188][ T7809]  ? __sys_sendmsg (net/socket.c:2799)
[  168.560190][ T7809]  ? do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[  168.560192][ T7809]  ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[  168.560195][ T7809]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  168.560197][ T7809]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  168.560198][ T7809]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  168.560199][ T7809]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  168.560201][ T7809]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[  168.560204][ T7809]  ? __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)
[  168.560206][ T7809]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[  168.560207][ T7809]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[  168.560209][ T7809]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[  168.560211][ T7809]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[  168.560213][ T7809]  rtnl_newlink (net/core/rtnetlink.c:4215)
[  168.560215][ T7809]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  168.560217][ T7809]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[  168.560218][ T7809]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  168.560219][ T7809]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  168.560221][ T7809]  ? is_bpf_text_address (./include/linux/rcupdate.h:850 kernel/bpf/core.c:749)
[  168.560224][ T7809]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[  168.560226][ T7809]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[  168.560228][ T7809]  ? __kernel_text_address (kernel/extable.c:79)
[  168.560229][ T7809]  ? write_profile (profile.c:?)
[  168.560230][ T7809]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[  168.560231][ T7809]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  168.560233][ T7809]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  168.560234][ T7809]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[  168.560238][ T7809]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  168.560239][ T7809]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  168.560241][ T7809]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[  168.560242][ T7809]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[  168.560244][ T7809]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[  168.560245][ T7809]  ? filter_irq_stacks (kernel/stacktrace.c:402)
[  168.560247][ T7809]  ? stack_depot_save_flags (lib/stackdepot.c:609 lib/stackdepot.c:676)
[  168.560249][ T7809]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[  168.560250][ T7809]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[  168.560252][ T7809]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[  168.560253][ T7809]  ? netlink_ack (./include/linux/skbuff.h:2718)
[  168.560254][ T7809]  ? __netlink_lookup (./include/linux/rcupdate.h:850 ./include/linux/rhashtable.h:709 net/netlink/af_netlink.c:499)
[  168.560257][ T7809]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  168.560258][ T7809]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[  168.560260][ T7809]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[  168.560262][ T7809]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[  168.560264][ T7809]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  168.560265][ T7809]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  168.560267][ T7809]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  168.560269][ T7809]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[  168.560271][ T7809]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[  168.560272][ T7809]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  168.560274][ T7809]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[  168.560276][ T7809]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[  168.560277][ T7809]  ? copy_msghdr_from_user (net/socket.c:2650)
[  168.560279][ T7809]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[  168.560280][ T7809]  ? move_addr_to_kernel (net/socket.c:258)
[  168.560282][ T7809]  ? filter_irq_stacks (kernel/stacktrace.c:402)
[  168.560284][ T7809]  ___sys_sendmsg (net/socket.c:2767)
[  168.560286][ T7809]  ? copy_msghdr_from_user (net/socket.c:2619)
[  168.560291][ T7809]  __sys_sendmsg (net/socket.c:2799)
[  168.560293][ T7809]  ? __sys_sendmsg_sock (net/socket.c:2780)
[  168.560295][ T7809]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  168.560297][ T7809]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[  168.560298][ T7809]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[  168.560301][ T7809]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[  168.560302][ T7809] RIP: 0033:0x7f949dc0e54e
[  168.560304][ T7809] 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
[  168.560306][ T7809] RSP: 002b:00007ffffa806e50 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[  168.560309][ T7809] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f949dc0e54e
[  168.560310][ T7809] RDX: 0000000000000000 RSI: 00007ffffa806f00 RDI: 0000000000000005
[  168.560311][ T7809] RBP: 00007ffffa806e60 R08: 0000000000000000 R09: 0000000000000000
[  168.560312][ T7809] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a915c75


Finger prints:
__alloc_skb:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars
mark_lock_irq:mark_lock:mark_usage:__lock_acquire:_raw_spin_lock
__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