======================================
| [    9.340151][  T200] softirqs last disabled at (25463): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [    9.340153][  T200] Preemption disabled at:
| [    9.340154][  T200] 0x0
| [    9.340163][  T200] Tainted: [W]=WARN
[    9.340164][  T200] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.340166][  T200] Call Trace:
[    9.340167][  T200]  <TASK>
[    9.340169][  T200]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[    9.340175][  T200]  __might_resched.cold (kernel/sched/core.c:9234)
[    9.340179][  T200]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[    9.340184][  T200]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[    9.340188][  T200]  __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))
[    9.340190][  T200]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[    9.340196][  T200]  ? 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)
[    9.340199][  T200]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[    9.340203][  T200]  put_chars (drivers/char/virtio_console.c:1176)
[    9.340205][  T200]  ? __send_to_port (drivers/char/virtio_console.c:654)
[    9.340206][  T200]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[    9.340210][  T200]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[    9.340215][  T200]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[    9.340223][  T200]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[    9.340225][  T200]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    9.340227][  T200]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[    9.340231][  T200]  console_emit_next_record (kernel/printk/printk.c:3183)
[    9.340235][  T200]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[    9.340237][  T200]  ? 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))
[    9.340240][  T200]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    9.340242][  T200]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[    9.340246][  T200]  console_flush_one_record (kernel/printk/printk.c:3268)
[    9.340250][  T200]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[    9.340252][  T200]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[    9.340257][  T200]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[    9.340260][  T200]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[    9.340261][  T200]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    9.340263][  T200]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[    9.340267][  T200]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[    9.340268][  T200]  ? vprintk_emit (kernel/printk/printk.c:2478)
[    9.340271][  T200]  vprintk_emit (kernel/printk/printk.c:2479)
[    9.340274][  T200]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[    9.340277][  T200]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[    9.340280][  T200]  _printk (kernel/printk/printk.c:2504)
[    9.340284][  T200]  ? snapshot_read.cold (user.c:?)
[    9.340287][  T200]  ? 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)
[    9.340289][  T200]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[    9.340293][  T200]  ? 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)
[    9.340296][  T200]  do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4))
[    9.340299][  T200]  ? exit_notify (kernel/exit.c:780)
[    9.340301][  T200]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[    9.340303][  T200]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    9.340307][  T200]  do_group_exit (kernel/exit.c:1151)
[    9.340309][  T200]  __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160)
[    9.340311][  T200]  x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232)
[    9.340314][  T200]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[    9.340318][  T200]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[    9.340321][  T200]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.340322][  T200] RIP: 0033:0x7f78ac1e71b8
[    9.340325][  T200] Code: Unable to access opcode bytes at 0x7f78ac1e718e.

Code starting with the faulting instruction
===========================================
[    9.340326][  T200] RSP: 002b:00007ffe184a1498 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
[    9.340328][  T200] RAX: ffffffffffffffda RBX: 00007f78ac317f88 RCX: 00007f78ac1e71b8
[    9.340329][  T200] RDX: 00007f78abf31fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000
[    9.340330][  T200] RBP: 00007ffe184a14f0 R08: 0000000000000000 R09: 0000000000000050
[    9.340331][  T200] R10: 00007ffe184a12b0 R11: 0000000000000246 R12: 0000000000000001
[    9.340331][  T200] R13: 0000000000000000 R14: 00007f78ac316680 R15: 00007f78ac317fa0
| [   10.718728][  T244] softirqs last disabled at (18056): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   10.718730][  T244] Preemption disabled at:
| [   10.718731][  T244] vprintk_emit (kernel/printk/printk.c:2471)
| [   10.718740][  T244] Tainted: [W]=WARN
[   10.718741][  T244] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.718742][  T244] Call Trace:
[   10.718744][  T244]  <TASK>
[   10.718745][  T244]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   10.718751][  T244]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   10.718753][  T244]  __might_resched.cold (kernel/sched/core.c:9234)
[   10.718757][  T244]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   10.718761][  T244]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   10.718766][  T244]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   10.718768][  T244]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.718774][  T244]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   10.718776][  T244]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.718780][  T244]  put_chars (drivers/char/virtio_console.c:1176)
[   10.718783][  T244]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   10.718788][  T244]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   10.718796][  T244]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   10.718799][  T244]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.718803][  T244]  console_emit_next_record (kernel/printk/printk.c:3183)
[   10.718806][  T244]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   10.718808][  T244]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   10.718811][  T244]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.718814][  T244]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.718818][  T244]  console_flush_one_record (kernel/printk/printk.c:3268)
[   10.718822][  T244]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   10.718824][  T244]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.718829][  T244]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   10.718831][  T244]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   10.718833][  T244]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.718835][  T244]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   10.718838][  T244]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   10.718840][  T244]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   10.718843][  T244]  vprintk_emit (kernel/printk/printk.c:2479)
[   10.718846][  T244]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   10.718848][  T244]  ? save_trace (kernel/locking/lockdep.c:589)
[   10.718852][  T244]  _printk (kernel/printk/printk.c:2504)
[   10.718855][  T244]  ? snapshot_read.cold (user.c:?)
[   10.718858][  T244]  ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928)
[   10.718860][  T244]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   10.718864][  T244]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   10.718867][  T244]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   10.718869][  T244]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   10.718871][  T244]  ? netdev_notice (net/core/dev.c:13194)
[   10.718874][  T244]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   10.718877][  T244]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   10.718879][  T244]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   10.718883][  T244]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   10.718885][  T244]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   10.718887][  T244]  ? register_netdev (net/core/dev.c:11618)
[   10.718888][  T244]  ? is_bpf_text_address (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) kernel/bpf/core.c:751 (discriminator 2))
[   10.718893][  T244]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   10.718896][  T244]  ? __kernel_text_address (kernel/extable.c:79)
[   10.718898][  T244]  ? write_profile (profile.c:?)
[   10.718902][  T244]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   10.718907][  T244]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   10.718910][  T244]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   10.718912][  T244]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   10.718914][  T244]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   10.718916][  T244]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   10.718920][  T244]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   10.718922][  T244]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   10.718924][  T244]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   10.718926][  T244]  ? kasan_save_stack (mm/kasan/common.c:58)
[   10.718928][  T244]  ? kasan_save_stack (mm/kasan/common.c:57)
[   10.718929][  T244]  ? kasan_save_track (mm/kasan/common.c:78)
[   10.718930][  T244]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   10.718932][  T244]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.718934][  T244]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   10.718937][  T244]  ? ___sys_sendmsg (net/socket.c:2758)
[   10.718941][  T244]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   10.718943][  T244]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   10.718945][  T244]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.718947][  T244]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.718948][  T244]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.718949][  T244]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.718951][  T244]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   10.718953][  T244]  ? __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)
[   10.718956][  T244]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   10.718958][  T244]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   10.718961][  T244]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   10.718962][  T244]  ? nla_get_range_signed (lib/nlattr.c:270)
[   10.718967][  T244]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.718969][  T244]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   10.718974][  T244]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   10.718979][  T244]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   10.718981][  T244]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.718985][  T244]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   10.718987][  T244]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   10.718989][  T244]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   10.718991][  T244]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   10.718994][  T244]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   10.718996][  T244]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   10.718999][  T244]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   10.719001][  T244]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.719005][  T244]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   10.719007][  T244]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   10.719010][  T244]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   10.719013][  T244]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   10.719016][  T244]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   10.719025][  T244]  ? 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))
[   10.719027][  T244]  ? 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))
[   10.719031][  T244]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   10.719035][  T244]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   10.719038][  T244]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   10.719042][  T244]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   10.719049][  T244]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   10.719053][  T244]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   10.719055][  T244]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   10.719060][  T244]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   10.719062][  T244]  ____sys_sendmsg (net/socket.c:2713)
[   10.719065][  T244]  ? copy_msghdr_from_user (net/socket.c:2650)
[   10.719067][  T244]  ? sock_write_iter (net/socket.c:1269)
[   10.719068][  T244]  ? move_addr_to_kernel (net/socket.c:258)
[   10.719075][  T244]  ___sys_sendmsg (net/socket.c:2767)
[   10.719078][  T244]  ? copy_msghdr_from_user (net/socket.c:2619)
[   10.719093][  T244]  __sys_sendmsg (net/socket.c:2799)
[   10.719096][  T244]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   10.719102][  T244]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.719105][  T244]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   10.719108][  T244]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   10.719110][  T244]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   10.719112][  T244] RIP: 0033:0x7f37d545c54e
[   10.719116][  T244] 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
[   10.719117][  T244] RSP: 002b:00007ffc8e104e60 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   10.719120][  T244] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007f37d545c54e
[   10.719121][  T244] RDX: 0000000000000000 RSI: 00007ffc8e104f10 RDI: 0000000000000005
[   10.719122][  T244] RBP: 00007ffc8e104e70 R08: 0000000000000000 R09: 0000000000000000
[   10.719123][  T244] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a911947
[   10.719124][  T244] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffc8e1055e0
| [   23.938061][   T12] softirqs last disabled at (13848): netlink_release (./include/net/sock.h:2138 net/netlink/af_netlink.c:727)
| [   23.938063][   T12] Preemption disabled at:
| [   23.938064][   T12] vprintk_emit (kernel/printk/printk.c:2471)
| [   23.938072][   T12] Tainted: [W]=WARN
[   23.938073][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   23.938075][   T12] Workqueue: netns cleanup_net
[   23.938078][   T12] Call Trace:
[   23.938080][   T12]  <TASK>
[   23.938081][   T12]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   23.938087][   T12]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   23.938089][   T12]  __might_resched.cold (kernel/sched/core.c:9234)
[   23.938093][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   23.938097][   T12]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   23.938102][   T12]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   23.938104][   T12]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   23.938110][   T12]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   23.938113][   T12]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   23.938120][   T12]  put_chars (drivers/char/virtio_console.c:1176)
[   23.938123][   T12]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   23.938126][   T12]  ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928)
[   23.938131][   T12]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   23.938135][   T12]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   23.938140][   T12]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   23.938143][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   23.938149][   T12]  console_emit_next_record (kernel/printk/printk.c:3183)
[   23.938153][   T12]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   23.938155][   T12]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   23.938158][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   23.938160][   T12]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   23.938164][   T12]  console_flush_one_record (kernel/printk/printk.c:3268)
[   23.938168][   T12]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   23.938170][   T12]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   23.938175][   T12]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   23.938178][   T12]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   23.938180][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   23.938182][   T12]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   23.938185][   T12]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   23.938187][   T12]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   23.938190][   T12]  vprintk_emit (kernel/printk/printk.c:2479)
[   23.938193][   T12]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   23.938194][   T12]  ? cleanup_net (net/core/net_namespace.c:706)
[   23.938196][   T12]  ? worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   23.938198][   T12]  ? kthread (kernel/kthread.c:436)
[   23.938200][   T12]  ? ret_from_fork (arch/x86/kernel/process.c:158)
[   23.938203][   T12]  ? ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
[   23.938207][   T12]  _printk (kernel/printk/printk.c:2504)
[   23.938211][   T12]  ? snapshot_read.cold (user.c:?)
[   23.938216][   T12]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   23.938219][   T12]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   23.938223][   T12]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   23.938226][   T12]  ? netdev_notice (net/core/dev.c:13194)
[   23.938230][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   23.938232][   T12]  ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1))
[   23.938235][   T12]  ? down_write_nested (kernel/locking/rwsem.c:1759)
[   23.938237][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   23.938239][   T12]  netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3))
[   23.938243][   T12]  dev_set_allmulti (net/core/dev_api.c:315)
[   23.938247][   T12]  del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341)
[   23.938251][   T12]  ? unregister_netdevice_many (net/core/dev.c:12589)
[   23.938252][   T12]  ? net_generic (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2))
[   23.938257][   T12]  br_dev_delete (net/bridge/br_if.c:387)
[   23.938261][   T12]  br_net_exit_rtnl (net/bridge/br.c:414)
[   23.938264][   T12]  ops_undo_list (net/core/net_namespace.c:181 net/core/net_namespace.c:249)
[   23.938268][   T12]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   23.938272][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   23.938273][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   23.938276][   T12]  ? idr_destroy (lib/radix-tree.c:310 lib/radix-tree.c:674 lib/radix-tree.c:1563)
[   23.938281][   T12]  cleanup_net (net/core/net_namespace.c:706)
[   23.938284][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   23.938288][   T12]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   23.938290][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   23.938293][   T12]  process_one_work (kernel/workqueue.c:3387)
[   23.938300][   T12]  ? __queue_delayed_work (kernel/workqueue.c:2622)
[   23.938302][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   23.938310][   T12]  worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   23.938317][   T12]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   23.938319][   T12]  kthread (kernel/kthread.c:436)
[   23.938321][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   23.938325][   T12]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   23.938327][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   23.938330][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1))
[   23.938334][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   23.938337][   T12]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   23.938340][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   25.994599][    C0]
| [   25.994599][    C0]
| [   25.994599][    C0] stack backtrace:
| [   25.994605][    C0] Tainted: [W]=WARN
[   25.994606][    C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   25.994608][    C0] Call Trace:
[   25.994609][    C0]  <IRQ>
[   25.994610][    C0]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   25.994615][    C0]  print_irq_inversion_bug.part.0.cold (kernel/locking/lockdep.c:4141)
[   25.994617][    C0]  mark_lock_irq (kernel/locking/lockdep.c:4095 kernel/locking/lockdep.c:4174 kernel/locking/lockdep.c:4310)
[   25.994618][    C0]  ? add_lock_to_list (./include/linux/find.h:391 kernel/locking/lockdep.c:1419 kernel/locking/lockdep.c:1450)
[   25.994621][    C0]  mark_lock (kernel/locking/lockdep.c:4769)
[   25.994623][    C0]  mark_usage (kernel/locking/lockdep.c:4658)
[   25.994625][    C0]  __lock_acquire (kernel/locking/lockdep.c:5208)
[   25.994627][    C0]  lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   25.994628][    C0]  ? console_lock_spinning_enable (kernel/printk/printk.c:1902 (discriminator 2))
[   25.994631][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   25.994633][    C0]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   25.994635][    C0]  console_lock_spinning_enable (kernel/printk/printk.c:1902 (discriminator 2))
[   25.994636][    C0]  ? console_lock_spinning_enable (kernel/printk/printk.c:1902 (discriminator 2))
[   25.994638][    C0]  console_emit_next_record (kernel/printk/printk.c:3177)
[   25.994640][    C0]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   25.994642][    C0]  ? 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))
[   25.994644][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   25.994645][    C0]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   25.994647][    C0]  console_flush_one_record (kernel/printk/printk.c:3268)
[   25.994649][    C0]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   25.994651][    C0]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   25.994653][    C0]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   25.994655][    C0]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   25.994656][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   25.994657][    C0]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   25.994659][    C0]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   25.994661][    C0]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   25.994662][    C0]  vprintk_emit (kernel/printk/printk.c:2479)
[   25.994664][    C0]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   25.994666][    C0]  ? clocksource_watchdog.part.0 (kernel/time/clocksource.c:531 (discriminator 1) kernel/time/clocksource.c:608 (discriminator 1) kernel/time/clocksource.c:667 (discriminator 1))
[   25.994667][    C0]  _printk (kernel/printk/printk.c:2504)
[   25.994669][    C0]  ? snapshot_read.cold (user.c:?)
[   25.994671][    C0]  ? clocksource_watchdog.part.0 (kernel/time/clocksource.c:531 (discriminator 1) kernel/time/clocksource.c:608 (discriminator 1) kernel/time/clocksource.c:667 (discriminator 1))
[   25.994672][    C0]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   25.994675][    C0]  clocksource_watchdog.part.0.cold (kernel/time/clocksource.c:589 (discriminator 10) kernel/time/clocksource.c:632 (discriminator 10) kernel/time/clocksource.c:667 (discriminator 10))
[   25.994676][    C0]  ? clocksource_watchdog.part.0 (./include/linux/find.h:67 (discriminator 4))
[   25.994678][    C0]  ? clocksource_watchdog.part.0 (./include/linux/find.h:67 (discriminator 4))
[   25.994679][    C0]  call_timer_fn (kernel/time/timer.c:1748)
[   25.994681][    C0]  ? detach_if_pending (./include/linux/list.h:1159)
[   25.994683][    C0]  ? debug_object_active_state (lib/debugobjects.c:1122)
[   25.994686][    C0]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   25.994687][    C0]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   25.994689][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   25.994691][    C0]  __run_timers (kernel/time/timer.c:1799 kernel/time/timer.c:2374)
[   25.994692][    C0]  ? clocksource_watchdog.part.0 (./include/linux/find.h:67 (discriminator 4))
[   25.994695][    C0]  ? __bpf_trace_itimer_expire (./include/trace/events/timer.h:407)
[   25.994696][    C0]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   25.994699][    C0]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   25.994702][    C0]  run_timer_softirq (kernel/time/timer.c:2386 kernel/time/timer.c:2395 kernel/time/timer.c:2403)
[   25.994704][    C0]  ? __run_timers (./include/trace/events/timer.h:138 (discriminator 19))
[   25.994705][    C0]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   25.994708][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   25.994709][    C0]  handle_softirqs (kernel/softirq.c:645)
[   25.994711][    C0]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   25.994713][    C0]  ? _local_bh_enable (kernel/softirq.c:428 (discriminator 1))
[   25.994715][    C0]  __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
[   25.994717][    C0]  irq_exit_rcu (kernel/softirq.c:784)
[   25.994718][    C0]  sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1062 (discriminator 37) arch/x86/kernel/apic/apic.c:1062 (discriminator 37))
[   25.994720][    C0]  </IRQ>
[   25.994720][    C0]  <TASK>
[   25.994721][    C0]  ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:4427 (discriminator 2))
[   25.994722][    C0]  asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:674)
[   25.994724][    C0] RIP: 0010:pv_native_safe_halt (./arch/x86/include/asm/irqflags.h:48 arch/x86/kernel/paravirt.c:63)
[   25.994726][    C0] Code: 48 8b 3d 94 82 68 02 e8 1f 00 00 00 48 2b 05 58 d3 a0 00 c3 0f 1f 80 00 00 00 00 f3 0f 1e fa eb 07 0f 00 2d 13 06 0e 00 fb f4 <c3> 0f 1f 40 d6 48 83 ec 20 8b 17 49 89 f8 83 e2 fe 41 89 d2 0f 01
All code
========
   0:	48 8b 3d 94 82 68 02 	mov    0x2688294(%rip),%rdi        # 0x268829b
   7:	e8 1f 00 00 00       	call   0x2b
   c:	48 2b 05 58 d3 a0 00 	sub    0xa0d358(%rip),%rax        # 0xa0d36b
  13:	c3                   	ret
  14:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  1b:	f3 0f 1e fa          	endbr64
  1f:	eb 07                	jmp    0x28
  21:	0f 00 2d 13 06 0e 00 	verw   0xe0613(%rip)        # 0xe063b
  28:	fb                   	sti
  29:	f4                   	hlt
  2a:*	c3                   	ret		<-- trapping instruction
  2b:	0f 1f 40 d6          	nopl   -0x2a(%rax)
  2f:	48 83 ec 20          	sub    $0x20,%rsp
  33:	8b 17                	mov    (%rdi),%edx
  35:	49 89 f8             	mov    %rdi,%r8
  38:	83 e2 fe             	and    $0xfffffffe,%edx
  3b:	41 89 d2             	mov    %edx,%r10d
  3e:	0f                   	.byte 0xf
  3f:	01                   	.byte 0x1

Code starting with the faulting instruction
===========================================
   0:	c3                   	ret
   1:	0f 1f 40 d6          	nopl   -0x2a(%rax)
   5:	48 83 ec 20          	sub    $0x20,%rsp
   9:	8b 17                	mov    (%rdi),%edx
   b:	49 89 f8             	mov    %rdi,%r8
   e:	83 e2 fe             	and    $0xfffffffe,%edx
  11:	41 89 d2             	mov    %edx,%r10d
  14:	0f                   	.byte 0xf
  15:	01                   	.byte 0x1
[   25.994728][    C0] RSP: 0018:ffffffffabe07cf8 EFLAGS: 00000296
[   25.994730][    C0] RAX: 00000000000ba44f RBX: ffffffffabe30600 RCX: ffffffffa8506247
[   25.994731][    C0] RDX: ffffffffabe30600 RSI: ffffffffab711027 RDI: ffffffffab0949e0
[   25.994732][    C0] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
[   25.994733][    C0] R10: 0000000000000000 R11: 0000000000000001 R12: 1ffffffff57c0fa2
[   25.994733][    C0] R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000014770
[   25.994735][    C0]  ? cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   25.994737][    C0]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   25.994738][    C0]  default_idle (./arch/x86/include/asm/paravirt.h:62 arch/x86/kernel/process.c:768)
[   25.994740][    C0]  default_idle_call (kernel/sched/idle.c:122)
[   25.994741][    C0]  cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   25.994743][    C0]  ? arch_cpu_idle_exit+0x40/0x40
[   25.994745][    C0]  ? mark_tsc_async_resets (arch/x86/kernel/tsc_sync.c:49)
[   25.994747][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   25.994749][    C0]  do_idle (kernel/sched/idle.c:355)
[   25.994750][    C0]  cpu_startup_entry (kernel/sched/idle.c:454)
[   25.994752][    C0]  rest_init (init/main.c:727)
[   25.994753][    C0]  ? __cpuidle_text_end (??:?)
[   25.994756][    C0]  ? rest_init (init/main.c:727)
[   25.994757][    C0]  ? acpi_hw_set_mode (drivers/acpi/acpica/hwacpi.c:72 (discriminator 1))
[   25.994760][    C0]  ? cpus_read_unlock (./include/linux/percpu-rwsem.h:125 (discriminator 1) kernel/cpu.c:502 (discriminator 1))
[   25.994762][    C0]  ? acpi_enable (drivers/acpi/acpica/evxfevnt.c:47)
[   25.994764][    C0]  start_kernel (init/main.c:1185)
[   25.994766][    C0]  x86_64_start_reservations (arch/x86/kernel/head64.c:310)
[   25.994767][    C0]  x86_64_start_kernel (arch/x86/kernel/head64.c:291)
[   25.994769][    C0]  common_startup_64 (arch/x86/kernel/head_64.S:418)
| [   25.994787][    C0] softirqs last disabled at (762961): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   25.994788][    C0] Preemption disabled at:
| [   25.994789][    C0] schedule_preempt_disabled (kernel/sched/core.c:7420)
| [   25.994794][    C0] Tainted: [W]=WARN
[   25.994794][    C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   25.994795][    C0] Call Trace:
[   25.994795][    C0]  <IRQ>
[   25.994796][    C0]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   25.994798][    C0]  ? schedule_preempt_disabled (kernel/sched/core.c:7420)
[   25.994800][    C0]  __might_resched.cold (kernel/sched/core.c:9234)
[   25.994803][    C0]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   25.994806][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   25.994807][    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))
[   25.994808][    C0]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   25.994810][    C0]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   25.994812][    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)
[   25.994814][    C0]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   25.994816][    C0]  put_chars (drivers/char/virtio_console.c:1176)
[   25.994818][    C0]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   25.994820][    C0]  ? mark_lock (kernel/locking/lockdep.c:4769)
[   25.994822][    C0]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   25.994824][    C0]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   25.994826][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   25.994827][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   25.994829][    C0]  console_emit_next_record (kernel/printk/printk.c:3183)
[   25.994831][    C0]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   25.994833][    C0]  ? 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))
[   25.994834][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   25.994836][    C0]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   25.994837][    C0]  console_flush_one_record (kernel/printk/printk.c:3268)
[   25.994840][    C0]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   25.994841][    C0]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   25.994844][    C0]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   25.994846][    C0]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   25.994847][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   25.994848][    C0]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   25.994850][    C0]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   25.994852][    C0]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   25.994853][    C0]  vprintk_emit (kernel/printk/printk.c:2479)
[   25.994854][    C0]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   25.994856][    C0]  ? clocksource_watchdog.part.0 (kernel/time/clocksource.c:531 (discriminator 1) kernel/time/clocksource.c:608 (discriminator 1) kernel/time/clocksource.c:667 (discriminator 1))
[   25.994858][    C0]  _printk (kernel/printk/printk.c:2504)
[   25.994859][    C0]  ? snapshot_read.cold (user.c:?)
[   25.994861][    C0]  ? clocksource_watchdog.part.0 (kernel/time/clocksource.c:531 (discriminator 1) kernel/time/clocksource.c:608 (discriminator 1) kernel/time/clocksource.c:667 (discriminator 1))
[   25.994863][    C0]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   25.994865][    C0]  clocksource_watchdog.part.0.cold (kernel/time/clocksource.c:589 (discriminator 10) kernel/time/clocksource.c:632 (discriminator 10) kernel/time/clocksource.c:667 (discriminator 10))
[   25.994866][    C0]  ? clocksource_watchdog.part.0 (./include/linux/find.h:67 (discriminator 4))
[   25.994868][    C0]  ? clocksource_watchdog.part.0 (./include/linux/find.h:67 (discriminator 4))
[   25.994870][    C0]  call_timer_fn (kernel/time/timer.c:1748)
[   25.994872][    C0]  ? detach_if_pending (./include/linux/list.h:1159)
[   25.994873][    C0]  ? debug_object_active_state (lib/debugobjects.c:1122)
[   25.994875][    C0]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   25.994876][    C0]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   25.994878][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   25.994879][    C0]  __run_timers (kernel/time/timer.c:1799 kernel/time/timer.c:2374)
[   25.994881][    C0]  ? clocksource_watchdog.part.0 (./include/linux/find.h:67 (discriminator 4))
[   25.994883][    C0]  ? __bpf_trace_itimer_expire (./include/trace/events/timer.h:407)
[   25.994885][    C0]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   25.994888][    C0]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   25.994890][    C0]  run_timer_softirq (kernel/time/timer.c:2386 kernel/time/timer.c:2395 kernel/time/timer.c:2403)
[   25.994892][    C0]  ? __run_timers (./include/trace/events/timer.h:138 (discriminator 19))
[   25.994894][    C0]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   25.994895][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   25.994896][    C0]  handle_softirqs (kernel/softirq.c:645)
[   25.994898][    C0]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   25.994900][    C0]  ? _local_bh_enable (kernel/softirq.c:428 (discriminator 1))
[   25.994902][    C0]  __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
[   25.994903][    C0]  irq_exit_rcu (kernel/softirq.c:784)
[   25.994904][    C0]  sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1062 (discriminator 37) arch/x86/kernel/apic/apic.c:1062 (discriminator 37))
[   25.994906][    C0]  </IRQ>
[   25.994906][    C0]  <TASK>
[   25.994907][    C0]  ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:4427 (discriminator 2))
[   25.994909][    C0]  asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:674)
[   25.994910][    C0] RIP: 0010:pv_native_safe_halt (./arch/x86/include/asm/irqflags.h:48 arch/x86/kernel/paravirt.c:63)
[   25.994912][    C0] Code: 48 8b 3d 94 82 68 02 e8 1f 00 00 00 48 2b 05 58 d3 a0 00 c3 0f 1f 80 00 00 00 00 f3 0f 1e fa eb 07 0f 00 2d 13 06 0e 00 fb f4 <c3> 0f 1f 40 d6 48 83 ec 20 8b 17 49 89 f8 83 e2 fe 41 89 d2 0f 01
All code
========
   0:	48 8b 3d 94 82 68 02 	mov    0x2688294(%rip),%rdi        # 0x268829b
   7:	e8 1f 00 00 00       	call   0x2b
   c:	48 2b 05 58 d3 a0 00 	sub    0xa0d358(%rip),%rax        # 0xa0d36b
  13:	c3                   	ret
  14:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  1b:	f3 0f 1e fa          	endbr64
  1f:	eb 07                	jmp    0x28
  21:	0f 00 2d 13 06 0e 00 	verw   0xe0613(%rip)        # 0xe063b
  28:	fb                   	sti
  29:	f4                   	hlt
  2a:*	c3                   	ret		<-- trapping instruction
  2b:	0f 1f 40 d6          	nopl   -0x2a(%rax)
  2f:	48 83 ec 20          	sub    $0x20,%rsp
  33:	8b 17                	mov    (%rdi),%edx
  35:	49 89 f8             	mov    %rdi,%r8
  38:	83 e2 fe             	and    $0xfffffffe,%edx
  3b:	41 89 d2             	mov    %edx,%r10d
  3e:	0f                   	.byte 0xf
  3f:	01                   	.byte 0x1

Code starting with the faulting instruction
===========================================
   0:	c3                   	ret
   1:	0f 1f 40 d6          	nopl   -0x2a(%rax)
   5:	48 83 ec 20          	sub    $0x20,%rsp
   9:	8b 17                	mov    (%rdi),%edx
   b:	49 89 f8             	mov    %rdi,%r8
   e:	83 e2 fe             	and    $0xfffffffe,%edx
  11:	41 89 d2             	mov    %edx,%r10d
  14:	0f                   	.byte 0xf
  15:	01                   	.byte 0x1
[   25.994913][    C0] RSP: 0018:ffffffffabe07cf8 EFLAGS: 00000296
[   25.994914][    C0] RAX: 00000000000ba44f RBX: ffffffffabe30600 RCX: ffffffffa8506247
[   25.994914][    C0] RDX: ffffffffabe30600 RSI: ffffffffab711027 RDI: ffffffffab0949e0
[   25.994915][    C0] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
[   25.994916][    C0] R10: 0000000000000000 R11: 0000000000000001 R12: 1ffffffff57c0fa2
[   25.994916][    C0] R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000014770
[   25.994918][    C0]  ? cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   25.994920][    C0]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   25.994921][    C0]  default_idle (./arch/x86/include/asm/paravirt.h:62 arch/x86/kernel/process.c:768)
[   25.994923][    C0]  default_idle_call (kernel/sched/idle.c:122)
[   25.994924][    C0]  cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   25.994926][    C0]  ? arch_cpu_idle_exit+0x40/0x40
[   25.994927][    C0]  ? mark_tsc_async_resets (arch/x86/kernel/tsc_sync.c:49)
[   25.994929][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   25.994930][    C0]  do_idle (kernel/sched/idle.c:355)
[   25.994931][    C0]  cpu_startup_entry (kernel/sched/idle.c:454)
[   25.994933][    C0]  rest_init (init/main.c:727)
[   25.994935][    C0]  ? __cpuidle_text_end (??:?)
[   25.994937][    C0]  ? rest_init (init/main.c:727)
[   25.994939][    C0]  ? acpi_hw_set_mode (drivers/acpi/acpica/hwacpi.c:72 (discriminator 1))
[   25.994940][    C0]  ? cpus_read_unlock (./include/linux/percpu-rwsem.h:125 (discriminator 1) kernel/cpu.c:502 (discriminator 1))
[   25.994942][    C0]  ? acpi_enable (drivers/acpi/acpica/evxfevnt.c:47)
[   25.994943][    C0]  start_kernel (init/main.c:1185)
[   25.994945][    C0]  x86_64_start_reservations (arch/x86/kernel/head64.c:310)
[   25.994946][    C0]  x86_64_start_kernel (arch/x86/kernel/head64.c:291)
[   25.994948][    C0]  common_startup_64 (arch/x86/kernel/head_64.S:418)
| [   38.390839][   T12] softirqs last disabled at (169298): netlink_release (./include/net/sock.h:2138 net/netlink/af_netlink.c:727)
| [   38.390843][   T12] Preemption disabled at:
| [   38.390844][   T12] vprintk_emit (kernel/printk/printk.c:2471)
| [   38.390858][   T12] Tainted: [W]=WARN
[   38.390859][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   38.390861][   T12] Workqueue: netns cleanup_net
[   38.390868][   T12] Call Trace:
[   38.390870][   T12]  <TASK>
[   38.390872][   T12]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   38.390879][   T12]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   38.390881][   T12]  __might_resched.cold (kernel/sched/core.c:9234)
[   38.390885][   T12]  ? prb_next_reserve_seq (kernel/printk/printk_ringbuffer.c:2128)
[   38.390888][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   38.390892][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   38.390896][   T12]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   38.390899][   T12]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   38.390903][   T12]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   38.390909][   T12]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   38.390912][   T12]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   38.390915][   T12]  put_chars (drivers/char/virtio_console.c:1176)
[   38.390918][   T12]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   38.390920][   T12]  ? console_prepend_replay (kernel/printk/printk.c:3005)
[   38.390924][   T12]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   38.390930][   T12]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   38.390933][   T12]  ? vsnprintf (lib/vsprintf.c:2953 (discriminator 1))
[   38.390936][   T12]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   38.390938][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   38.390940][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   38.390943][   T12]  console_emit_next_record (kernel/printk/printk.c:3183)
[   38.390946][   T12]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   38.390949][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   38.390951][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   38.390952][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   38.390954][   T12]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   38.390958][   T12]  ? console_flush_one_record (kernel/printk/printk.c:3247)
[   38.390960][   T12]  console_flush_one_record (kernel/printk/printk.c:3268)
[   38.390964][   T12]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   38.390968][   T12]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   38.390970][   T12]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   38.390972][   T12]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   38.390975][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   38.390976][   T12]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   38.390979][   T12]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   38.390981][   T12]  ? __rcu_read_lock (kernel/rcu/tree_plugin.h:391 (discriminator 6))
[   38.390983][   T12]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   38.390986][   T12]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   38.390988][   T12]  vprintk_emit (kernel/printk/printk.c:2479)
[   38.390991][   T12]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   38.390992][   T12]  ? cleanup_net (net/core/net_namespace.c:706)
[   38.390994][   T12]  ? worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   38.390998][   T12]  ? kthread (kernel/kthread.c:436)
[   38.391001][   T12]  ? ret_from_fork (arch/x86/kernel/process.c:158)
[   38.391004][   T12]  ? ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
[   38.391008][   T12]  _printk (kernel/printk/printk.c:2504)
[   38.391012][   T12]  ? snapshot_read.cold (user.c:?)
[   38.391019][   T12]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   38.391023][   T12]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   38.391027][   T12]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   38.391029][   T12]  ? netdev_notice (net/core/dev.c:13194)
[   38.391032][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   38.391034][   T12]  ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1))
[   38.391036][   T12]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:78)
[   38.391040][   T12]  ? down_write_nested (kernel/locking/rwsem.c:1759)
[   38.391042][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   38.391045][   T12]  netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3))
[   38.391048][   T12]  dev_set_allmulti (net/core/dev_api.c:315)
[   38.391051][   T12]  del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341)
[   38.391055][   T12]  ? unregister_netdevice_many (net/core/dev.c:12589)
[   38.391057][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   38.391059][   T12]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   38.391061][   T12]  br_dev_delete (net/bridge/br_if.c:387)
[   38.391065][   T12]  br_net_exit_rtnl (net/bridge/br.c:414)
[   38.391068][   T12]  ops_undo_list (net/core/net_namespace.c:181 net/core/net_namespace.c:249)
[   38.391071][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   38.391074][   T12]  ? idr_destroy (lib/radix-tree.c:310 lib/radix-tree.c:674 lib/radix-tree.c:1563)
[   38.391078][   T12]  cleanup_net (net/core/net_namespace.c:706)
[   38.391081][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   38.391084][   T12]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   38.391086][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   38.391088][   T12]  process_one_work (kernel/workqueue.c:3387)
[   38.391092][   T12]  ? __queue_delayed_work (kernel/workqueue.c:2622)
[   38.391095][   T12]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   38.391098][   T12]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   38.391102][   T12]  worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   38.391106][   T12]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   38.391109][   T12]  kthread (kernel/kthread.c:436)
[   38.391111][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   38.391113][   T12]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   38.391116][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   38.391119][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1))
[   38.391122][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   38.391126][   T12]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   38.391129][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   40.034110][  T711] softirqs last disabled at (0): 0x0
| [   40.034112][  T711] Preemption disabled at:
| [   40.034112][  T711] vprintk_emit (kernel/printk/printk.c:2471)
| [   40.034152][  T711] Tainted: [W]=WARN
[   40.034153][  T711] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   40.034155][  T711] Call Trace:
[   40.034157][  T711]  <TASK>
[   40.034158][  T711]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   40.034163][  T711]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   40.034165][  T711]  __might_resched.cold (kernel/sched/core.c:9234)
[   40.034168][  T711]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   40.034171][  T711]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   40.034174][  T711]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   40.034177][  T711]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   40.034179][  T711]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   40.034184][  T711]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   40.034186][  T711]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   40.034188][  T711]  put_chars (drivers/char/virtio_console.c:1176)
[   40.034190][  T711]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   40.034191][  T711]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   40.034193][  T711]  ? console_prepend_replay (kernel/printk/printk.c:3005)
[   40.034195][  T711]  ? pointer (lib/vsprintf.c:2577)
[   40.034202][  T711]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   40.034206][  T711]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   40.034208][  T711]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   40.034210][  T711]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   40.034212][  T711]  console_emit_next_record (kernel/printk/printk.c:3183)
[   40.034215][  T711]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   40.034217][  T711]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   40.034218][  T711]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   40.034219][  T711]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   40.034220][  T711]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   40.034222][  T711]  ? console_flush_one_record (kernel/printk/printk.c:3247)
[   40.034223][  T711]  console_flush_one_record (kernel/printk/printk.c:3268)
[   40.034225][  T711]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   40.034228][  T711]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   40.034230][  T711]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   40.034231][  T711]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   40.034233][  T711]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   40.034234][  T711]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   40.034235][  T711]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   40.034237][  T711]  ? __rcu_read_lock (kernel/rcu/tree_plugin.h:391 (discriminator 6))
[   40.034238][  T711]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   40.034240][  T711]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   40.034241][  T711]  vprintk_emit (kernel/printk/printk.c:2479)
[   40.034243][  T711]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   40.034244][  T711]  ? prepare_to_wait_event (kernel/sched/wait.c:318 (discriminator 7))
[   40.034247][  T711]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   40.034250][  T711]  ? _mutex_trylock_nest_lock (kernel/locking/mutex.c:1227 (discriminator 6))
[   40.034252][  T711]  _printk (kernel/printk/printk.c:2504)
[   40.034255][  T711]  ? snapshot_read.cold (user.c:?)
[   40.034256][  T711]  ? synchronize_rcu_normal (kernel/rcu/tree.c:3360)
[   40.034258][  T711]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   40.034262][  T711]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   40.034263][  T711]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   40.034267][  T711]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   40.034269][  T711]  ? netdev_notice (net/core/dev.c:13194)
[   40.034271][  T711]  ? 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)
[   40.034272][  T711]  ? __dev_change_net_namespace (net/core/dev.c:12342 net/core/dev.c:12883)
[   40.034275][  T711]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   40.034276][  T711]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   40.034277][  T711]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   40.034278][  T711]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   40.034279][  T711]  ? trace_irq_disable.constprop.0 (./include/trace/events/preemptirq.h:36 (discriminator 22))
[   40.034281][  T711]  ? trace_irq_enable.constprop.0 (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 ./include/linux/cpumask.h:650 ./include/linux/cpumask.h:1232 ./include/trace/events/preemptirq.h:40)
[   40.034282][  T711]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   40.034283][  T711]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   40.034285][  T711]  ? register_netdev (net/core/dev.c:11618)
[   40.034286][  T711]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   40.034288][  T711]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   40.034291][  T711]  ? __kernel_text_address (kernel/extable.c:79)
[   40.034293][  T711]  ? write_profile (profile.c:?)
[   40.034295][  T711]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   40.034299][  T711]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   40.034300][  T711]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   40.034302][  T711]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   40.034303][  T711]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   40.034304][  T711]  ? stack_depot_save_flags (lib/stackdepot.c:609 lib/stackdepot.c:676)
[   40.034307][  T711]  ? kasan_save_stack (mm/kasan/common.c:58)
[   40.034309][  T711]  ? kasan_save_stack (mm/kasan/common.c:57)
[   40.034310][  T711]  ? kasan_save_track (mm/kasan/common.c:78)
[   40.034311][  T711]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   40.034312][  T711]  ? __kmalloc_cache_noprof (./include/linux/kasan.h:263 mm/slub.c:5563)
[   40.034313][  T711]  ? rtnl_newlink (./include/linux/slab.h:991 (discriminator 1) net/core/rtnetlink.c:4113 (discriminator 1))
[   40.034314][  T711]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   40.034315][  T711]  ? netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   40.034318][  T711]  ? netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   40.034319][  T711]  ? netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   40.034321][  T711]  ? __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   40.034323][  T711]  ? ____sys_sendmsg (net/socket.c:2713)
[   40.034325][  T711]  ? ___sys_sendmsg (net/socket.c:2767)
[   40.034326][  T711]  ? __sys_sendmsg (net/socket.c:2799)
[   40.034327][  T711]  ? do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   40.034330][  T711]  ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   40.034332][  T711]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   40.034333][  T711]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   40.034334][  T711]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   40.034335][  T711]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   40.034336][  T711]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   40.034338][  T711]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   40.034339][  T711]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   40.034340][  T711]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   40.034341][  T711]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   40.034342][  T711]  ? nla_get_range_signed (lib/nlattr.c:270)
[   40.034345][  T711]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   40.034346][  T711]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   40.034348][  T711]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   40.034350][  T711]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   40.034351][  T711]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   40.034352][  T711]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   40.034354][  T711]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   40.034355][  T711]  ? is_bpf_text_address (./include/linux/rcupdate.h:850 kernel/bpf/core.c:749)
[   40.034357][  T711]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   40.034358][  T711]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   40.034360][  T711]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   40.034361][  T711]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   40.034364][  T711]  ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26)
[   40.034366][  T711]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   40.034367][  T711]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   40.034369][  T711]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   40.034370][  T711]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   40.034371][  T711]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   40.034373][  T711]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   40.034374][  T711]  ? filter_irq_stacks (kernel/stacktrace.c:402)
[   40.034375][  T711]  ? stack_depot_save_flags (lib/stackdepot.c:609 lib/stackdepot.c:676)
[   40.034378][  T711]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   40.034379][  T711]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   40.034381][  T711]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   40.034382][  T711]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   40.034384][  T711]  ? __netlink_lookup (./include/linux/rcupdate.h:850 ./include/linux/rhashtable.h:709 net/netlink/af_netlink.c:499)
[   40.034387][  T711]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   40.034388][  T711]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   40.034390][  T711]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   40.034392][  T711]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   40.034394][  T711]  ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   40.034395][  T711]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   40.034397][  T711]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   40.034399][  T711]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   40.034401][  T711]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   40.034402][  T711]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   40.034405][  T711]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   40.034407][  T711]  ____sys_sendmsg (net/socket.c:2713)
[   40.034408][  T711]  ? copy_msghdr_from_user (net/socket.c:2650)
[   40.034410][  T711]  ? sock_write_iter (net/socket.c:1269)
[   40.034411][  T711]  ? move_addr_to_kernel (net/socket.c:258)
[   40.034413][  T711]  ? filter_irq_stacks (kernel/stacktrace.c:402)
[   40.034415][  T711]  ___sys_sendmsg (net/socket.c:2767)
[   40.034417][  T711]  ? copy_msghdr_from_user (net/socket.c:2619)
[   40.034422][  T711]  __sys_sendmsg (net/socket.c:2799)
[   40.034424][  T711]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   40.034426][  T711]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   40.034428][  T711]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   40.034429][  T711]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   40.034431][  T711]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   40.034432][  T711] RIP: 0033:0x7f722f52c54e
[   40.034434][  T711] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   40.034436][  T711] RSP: 002b:00007ffc09a16510 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   40.034440][  T711] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007f722f52c54e
[   40.034441][  T711] RDX: 0000000000000000 RSI: 00007ffc09a165c0 RDI: 0000000000000005
[   40.034442][  T711] RBP: 00007ffc09a16520 R08: 0000000000000000 R09: 0000000000000000
[   40.034443][  T711] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a911964
[   40.034443][  T711] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffc09a16c90
| [   52.112106][   T12] softirqs last disabled at (169298): netlink_release (./include/net/sock.h:2138 net/netlink/af_netlink.c:727)
| [   52.112108][   T12] Preemption disabled at:
| [   52.112109][   T12] vprintk_emit (kernel/printk/printk.c:2471)
| [   52.112119][   T12] Tainted: [W]=WARN
[   52.112120][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   52.112122][   T12] Workqueue: netns cleanup_net
[   52.112127][   T12] Call Trace:
[   52.112129][   T12]  <TASK>
[   52.112130][   T12]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   52.112135][   T12]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   52.112137][   T12]  __might_resched.cold (kernel/sched/core.c:9234)
[   52.112140][   T12]  ? prb_next_reserve_seq (kernel/printk/printk_ringbuffer.c:2128)
[   52.112142][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   52.112146][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   52.112148][   T12]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   52.112151][   T12]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   52.112154][   T12]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   52.112158][   T12]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   52.112160][   T12]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   52.112162][   T12]  put_chars (drivers/char/virtio_console.c:1176)
[   52.112164][   T12]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   52.112166][   T12]  ? console_prepend_replay (kernel/printk/printk.c:3005)
[   52.112168][   T12]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   52.112173][   T12]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   52.112175][   T12]  ? vsnprintf (lib/vsprintf.c:2953 (discriminator 1))
[   52.112177][   T12]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   52.112178][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   52.112179][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   52.112181][   T12]  console_emit_next_record (kernel/printk/printk.c:3183)
[   52.112183][   T12]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   52.112185][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   52.112186][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   52.112187][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   52.112188][   T12]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   52.112190][   T12]  ? console_flush_one_record (kernel/printk/printk.c:3247)
[   52.112192][   T12]  console_flush_one_record (kernel/printk/printk.c:3268)
[   52.112194][   T12]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   52.112197][   T12]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   52.112199][   T12]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   52.112200][   T12]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   52.112202][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   52.112203][   T12]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   52.112204][   T12]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   52.112206][   T12]  ? __rcu_read_lock (kernel/rcu/tree_plugin.h:391 (discriminator 6))
[   52.112207][   T12]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   52.112209][   T12]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   52.112211][   T12]  vprintk_emit (kernel/printk/printk.c:2479)
[   52.112212][   T12]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   52.112214][   T12]  ? cleanup_net (net/core/net_namespace.c:706)
[   52.112215][   T12]  ? worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   52.112218][   T12]  ? kthread (kernel/kthread.c:436)
[   52.112220][   T12]  ? ret_from_fork (arch/x86/kernel/process.c:158)
[   52.112223][   T12]  ? ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
[   52.112225][   T12]  _printk (kernel/printk/printk.c:2504)
[   52.112228][   T12]  ? snapshot_read.cold (user.c:?)
[   52.112230][   T12]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   52.112233][   T12]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   52.112235][   T12]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   52.112238][   T12]  ? netdev_notice (net/core/dev.c:13194)
[   52.112240][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   52.112241][   T12]  ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1))
[   52.112242][   T12]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:78)
[   52.112245][   T12]  ? down_write_nested (kernel/locking/rwsem.c:1759)
[   52.112246][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   52.112248][   T12]  netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3))
[   52.112250][   T12]  dev_set_allmulti (net/core/dev_api.c:315)
[   52.112252][   T12]  del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341)
[   52.112256][   T12]  ? unregister_netdevice_many (net/core/dev.c:12589)
[   52.112257][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   52.112258][   T12]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   52.112260][   T12]  br_dev_delete (net/bridge/br_if.c:387)
[   52.112266][   T12]  br_net_exit_rtnl (net/bridge/br.c:414)
[   52.112269][   T12]  ops_undo_list (net/core/net_namespace.c:181 net/core/net_namespace.c:249)
[   52.112271][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   52.112272][   T12]  ? idr_destroy (lib/radix-tree.c:310 lib/radix-tree.c:674 lib/radix-tree.c:1563)
[   52.112275][   T12]  cleanup_net (net/core/net_namespace.c:706)
[   52.112277][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   52.112279][   T12]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   52.112280][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   52.112282][   T12]  process_one_work (kernel/workqueue.c:3387)
[   52.112285][   T12]  ? __queue_delayed_work (kernel/workqueue.c:2622)
[   52.112287][   T12]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   52.112289][   T12]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   52.112291][   T12]  worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   52.112294][   T12]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   52.112296][   T12]  kthread (kernel/kthread.c:436)
[   52.112297][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   52.112299][   T12]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   52.112301][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   52.112302][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1))
[   52.112304][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   52.112307][   T12]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   52.112309][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   53.517742][  T952] softirqs last disabled at (0): 0x0
| [   53.517744][  T952] Preemption disabled at:
| [   53.517744][  T952] vprintk_emit (kernel/printk/printk.c:2471)
| [   53.517754][  T952] Tainted: [W]=WARN
[   53.517755][  T952] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   53.517756][  T952] Call Trace:
[   53.517758][  T952]  <TASK>
[   53.517759][  T952]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   53.517764][  T952]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   53.517765][  T952]  __might_resched.cold (kernel/sched/core.c:9234)
[   53.517769][  T952]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   53.517772][  T952]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   53.517775][  T952]  __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))
[   53.517778][  T952]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   53.517781][  T952]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   53.517785][  T952]  ? 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)
[   53.517787][  T952]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   53.517789][  T952]  put_chars (drivers/char/virtio_console.c:1176)
[   53.517791][  T952]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   53.517792][  T952]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   53.517794][  T952]  ? console_prepend_replay (kernel/printk/printk.c:3005)
[   53.517796][  T952]  ? pointer (lib/vsprintf.c:2577)
[   53.517800][  T952]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   53.517804][  T952]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   53.517806][  T952]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   53.517807][  T952]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   53.517810][  T952]  console_emit_next_record (kernel/printk/printk.c:3183)
[   53.517812][  T952]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   53.517814][  T952]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   53.517815][  T952]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   53.517816][  T952]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   53.517817][  T952]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   53.517819][  T952]  ? console_flush_one_record (kernel/printk/printk.c:3247)
[   53.517821][  T952]  console_flush_one_record (kernel/printk/printk.c:3268)
[   53.517823][  T952]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   53.517826][  T952]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   53.517827][  T952]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   53.517829][  T952]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   53.517831][  T952]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   53.517831][  T952]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   53.517833][  T952]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   53.517834][  T952]  ? __rcu_read_lock (kernel/rcu/tree_plugin.h:391 (discriminator 6))
[   53.517836][  T952]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   53.517838][  T952]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   53.517839][  T952]  vprintk_emit (kernel/printk/printk.c:2479)
[   53.517841][  T952]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   53.517842][  T952]  ? prepare_to_wait_event (kernel/sched/wait.c:318 (discriminator 7))
[   53.517844][  T952]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   53.517847][  T952]  ? _mutex_trylock_nest_lock (kernel/locking/mutex.c:1227 (discriminator 6))
[   53.517849][  T952]  _printk (kernel/printk/printk.c:2504)
[   53.517852][  T952]  ? snapshot_read.cold (user.c:?)
[   53.517854][  T952]  ? synchronize_rcu_normal (kernel/rcu/tree.c:3360)
[   53.517856][  T952]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   53.517859][  T952]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   53.517861][  T952]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   53.517864][  T952]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   53.517866][  T952]  ? netdev_notice (net/core/dev.c:13194)
[   53.517868][  T952]  ? 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)
[   53.517870][  T952]  ? __dev_change_net_namespace (net/core/dev.c:12342 net/core/dev.c:12883)
[   53.517872][  T952]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   53.517874][  T952]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   53.517875][  T952]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   53.517876][  T952]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   53.517877][  T952]  ? trace_irq_disable.constprop.0 (./include/trace/events/preemptirq.h:36 (discriminator 22))
[   53.517878][  T952]  ? trace_irq_enable.constprop.0 (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 ./include/linux/cpumask.h:650 ./include/linux/cpumask.h:1232 ./include/trace/events/preemptirq.h:40)
[   53.517880][  T952]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   53.517881][  T952]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   53.517882][  T952]  ? register_netdev (net/core/dev.c:11618)
[   53.517883][  T952]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   53.517885][  T952]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   53.517888][  T952]  ? __kernel_text_address (kernel/extable.c:79)
[   53.517890][  T952]  ? write_profile (profile.c:?)
[   53.517893][  T952]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   53.517896][  T952]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   53.517897][  T952]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   53.517899][  T952]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   53.517900][  T952]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   53.517901][  T952]  ? stack_depot_save_flags (lib/stackdepot.c:609 lib/stackdepot.c:676)
[   53.517904][  T952]  ? kasan_save_stack (mm/kasan/common.c:58)
[   53.517906][  T952]  ? kasan_save_stack (mm/kasan/common.c:57)
[   53.517907][  T952]  ? kasan_save_track (mm/kasan/common.c:78)
[   53.517908][  T952]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   53.517909][  T952]  ? __kmalloc_cache_noprof (./include/linux/kasan.h:263 mm/slub.c:5563)
[   53.517910][  T952]  ? rtnl_newlink (./include/linux/slab.h:991 (discriminator 1) net/core/rtnetlink.c:4113 (discriminator 1))
[   53.517911][  T952]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   53.517913][  T952]  ? netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   53.517915][  T952]  ? netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   53.517917][  T952]  ? netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   53.517918][  T952]  ? __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   53.517921][  T952]  ? ____sys_sendmsg (net/socket.c:2713)
[   53.517922][  T952]  ? ___sys_sendmsg (net/socket.c:2767)
[   53.517923][  T952]  ? __sys_sendmsg (net/socket.c:2799)
[   53.517925][  T952]  ? do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   53.517927][  T952]  ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   53.517929][  T952]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   53.517930][  T952]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   53.517932][  T952]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   53.517933][  T952]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   53.517934][  T952]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   53.517935][  T952]  ? __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)
[   53.517936][  T952]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   53.517937][  T952]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   53.517939][  T952]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   53.517940][  T952]  ? nla_get_range_signed (lib/nlattr.c:270)
[   53.517943][  T952]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   53.517944][  T952]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   53.517946][  T952]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   53.517948][  T952]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   53.517949][  T952]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   53.517950][  T952]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   53.517951][  T952]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   53.517953][  T952]  ? is_bpf_text_address (./include/linux/rcupdate.h:850 kernel/bpf/core.c:749)
[   53.517955][  T952]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   53.517956][  T952]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   53.517957][  T952]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   53.517958][  T952]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   53.517961][  T952]  ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26)
[   53.517964][  T952]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   53.517965][  T952]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   53.517966][  T952]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   53.517967][  T952]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   53.517968][  T952]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   53.517970][  T952]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   53.517971][  T952]  ? filter_irq_stacks (kernel/stacktrace.c:402)
[   53.517973][  T952]  ? stack_depot_save_flags (lib/stackdepot.c:609 lib/stackdepot.c:676)
[   53.517975][  T952]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   53.517976][  T952]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   53.517978][  T952]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   53.517979][  T952]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   53.517981][  T952]  ? __netlink_lookup (./include/linux/rcupdate.h:850 ./include/linux/rhashtable.h:709 net/netlink/af_netlink.c:499)
[   53.517984][  T952]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   53.517985][  T952]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   53.517986][  T952]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   53.517989][  T952]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   53.517990][  T952]  ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   53.517992][  T952]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   53.517994][  T952]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   53.517995][  T952]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   53.517997][  T952]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   53.517998][  T952]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   53.518002][  T952]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   53.518003][  T952]  ____sys_sendmsg (net/socket.c:2713)
[   53.518005][  T952]  ? copy_msghdr_from_user (net/socket.c:2650)
[   53.518006][  T952]  ? sock_write_iter (net/socket.c:1269)
[   53.518008][  T952]  ? move_addr_to_kernel (net/socket.c:258)
[   53.518009][  T952]  ? filter_irq_stacks (kernel/stacktrace.c:402)
[   53.518012][  T952]  ___sys_sendmsg (net/socket.c:2767)
[   53.518013][  T952]  ? copy_msghdr_from_user (net/socket.c:2619)
[   53.518021][  T952]  __sys_sendmsg (net/socket.c:2799)
[   53.518023][  T952]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   53.518025][  T952]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   53.518027][  T952]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   53.518029][  T952]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   53.518031][  T952]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   53.518032][  T952] RIP: 0033:0x7f6c7ab5754e
[   53.518034][  T952] 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
[   53.518035][  T952] RSP: 002b:00007ffdfce4a860 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   53.518039][  T952] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007f6c7ab5754e
[   53.518040][  T952] RDX: 0000000000000000 RSI: 00007ffdfce4a910 RDI: 0000000000000005
[   53.518041][  T952] RBP: 00007ffdfce4a870 R08: 0000000000000000 R09: 0000000000000000
[   53.518042][  T952] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a911971
[   53.518043][  T952] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffdfce4afe0
| [   65.825089][   T12] softirqs last disabled at (169298): netlink_release (./include/net/sock.h:2138 net/netlink/af_netlink.c:727)
| [   65.825092][   T12] Preemption disabled at:
| [   65.825093][   T12] vprintk_emit (kernel/printk/printk.c:2471)
| [   65.825103][   T12] Tainted: [W]=WARN
[   65.825104][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   65.825105][   T12] Workqueue: netns cleanup_net
[   65.825111][   T12] Call Trace:
[   65.825112][   T12]  <TASK>
[   65.825114][   T12]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   65.825119][   T12]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   65.825121][   T12]  __might_resched.cold (kernel/sched/core.c:9234)
[   65.825124][   T12]  ? prb_next_reserve_seq (kernel/printk/printk_ringbuffer.c:2128)
[   65.825127][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   65.825130][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   65.825132][   T12]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   65.825135][   T12]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   65.825138][   T12]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   65.825143][   T12]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   65.825145][   T12]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   65.825147][   T12]  put_chars (drivers/char/virtio_console.c:1176)
[   65.825149][   T12]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   65.825151][   T12]  ? console_prepend_replay (kernel/printk/printk.c:3005)
[   65.825153][   T12]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   65.825158][   T12]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   65.825159][   T12]  ? vsnprintf (lib/vsprintf.c:2953 (discriminator 1))
[   65.825162][   T12]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   65.825163][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   65.825164][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   65.825166][   T12]  console_emit_next_record (kernel/printk/printk.c:3183)
[   65.825168][   T12]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   65.825170][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   65.825171][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   65.825172][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   65.825173][   T12]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   65.825175][   T12]  ? console_flush_one_record (kernel/printk/printk.c:3247)
[   65.825177][   T12]  console_flush_one_record (kernel/printk/printk.c:3268)
[   65.825179][   T12]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   65.825182][   T12]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   65.825184][   T12]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   65.825185][   T12]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   65.825187][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   65.825188][   T12]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   65.825190][   T12]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   65.825191][   T12]  ? __rcu_read_lock (kernel/rcu/tree_plugin.h:391 (discriminator 6))
[   65.825193][   T12]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   65.825195][   T12]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   65.825196][   T12]  vprintk_emit (kernel/printk/printk.c:2479)
[   65.825198][   T12]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   65.825199][   T12]  ? cleanup_net (net/core/net_namespace.c:706)
[   65.825200][   T12]  ? worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   65.825203][   T12]  ? kthread (kernel/kthread.c:436)
[   65.825205][   T12]  ? ret_from_fork (arch/x86/kernel/process.c:158)
[   65.825208][   T12]  ? ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
[   65.825210][   T12]  _printk (kernel/printk/printk.c:2504)
[   65.825213][   T12]  ? snapshot_read.cold (user.c:?)
[   65.825215][   T12]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   65.825218][   T12]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   65.825220][   T12]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   65.825223][   T12]  ? netdev_notice (net/core/dev.c:13194)
[   65.825225][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   65.825226][   T12]  ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1))
[   65.825227][   T12]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:78)
[   65.825230][   T12]  ? down_write_nested (kernel/locking/rwsem.c:1759)
[   65.825231][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   65.825233][   T12]  netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3))
[   65.825235][   T12]  dev_set_allmulti (net/core/dev_api.c:315)
[   65.825237][   T12]  del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341)
[   65.825241][   T12]  ? unregister_netdevice_many (net/core/dev.c:12589)
[   65.825242][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   65.825243][   T12]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   65.825245][   T12]  br_dev_delete (net/bridge/br_if.c:387)
[   65.825247][   T12]  br_net_exit_rtnl (net/bridge/br.c:414)
[   65.825249][   T12]  ops_undo_list (net/core/net_namespace.c:181 net/core/net_namespace.c:249)
[   65.825251][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   65.825253][   T12]  ? idr_destroy (lib/radix-tree.c:310 lib/radix-tree.c:674 lib/radix-tree.c:1563)
[   65.825256][   T12]  cleanup_net (net/core/net_namespace.c:706)
[   65.825258][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   65.825260][   T12]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   65.825261][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   65.825263][   T12]  process_one_work (kernel/workqueue.c:3387)
[   65.825265][   T12]  ? __queue_delayed_work (kernel/workqueue.c:2622)
[   65.825267][   T12]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   65.825269][   T12]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   65.825271][   T12]  worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   65.825274][   T12]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   65.825276][   T12]  kthread (kernel/kthread.c:436)
[   65.825278][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   65.825279][   T12]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   65.825281][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   65.825283][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1))
[   65.825285][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   65.825288][   T12]  ? kthread_affine_preferred (kernel/kthread.c:857)


Finger prints:
netlink_release:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars
__irq_exit_rcu:schedule_preempt_disabled:dump_stack_lvl:__kmalloc_noprof:put_chars
netif_change_name:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars
__irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print
mark_lock_irq:mark_lock:mark_usage:__lock_acquire:console_lock_spinning_enable
vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print