======================================
| [    9.963502][  T210] softirqs last disabled at (25747): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [    9.963504][  T210] Preemption disabled at:
| [    9.963505][  T210] 0x0
| [    9.963514][  T210] Tainted: [W]=WARN
[    9.963515][  T210] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.963517][  T210] Call Trace:
[    9.963518][  T210]  <TASK>
[    9.963520][  T210]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[    9.963526][  T210]  __might_resched.cold (kernel/sched/core.c:9234)
[    9.963531][  T210]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[    9.963535][  T210]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[    9.963539][  T210]  __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))
[    9.963541][  T210]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[    9.963548][  T210]  ? 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)
[    9.963550][  T210]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[    9.963554][  T210]  put_chars (drivers/char/virtio_console.c:1176)
[    9.963556][  T210]  ? __send_to_port (drivers/char/virtio_console.c:654)
[    9.963558][  T210]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[    9.963561][  T210]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[    9.963566][  T210]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[    9.963574][  T210]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[    9.963576][  T210]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    9.963578][  T210]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[    9.963582][  T210]  console_emit_next_record (kernel/printk/printk.c:3183)
[    9.963586][  T210]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[    9.963588][  T210]  ? 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))
[    9.963591][  T210]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    9.963593][  T210]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[    9.963596][  T210]  console_flush_one_record (kernel/printk/printk.c:3268)
[    9.963601][  T210]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[    9.963602][  T210]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[    9.963608][  T210]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[    9.963610][  T210]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[    9.963612][  T210]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    9.963614][  T210]  ? 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)
[    9.963617][  T210]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[    9.963619][  T210]  ? vprintk_emit (kernel/printk/printk.c:2478)
[    9.963622][  T210]  vprintk_emit (kernel/printk/printk.c:2479)
[    9.963625][  T210]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[    9.963628][  T210]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[    9.963631][  T210]  _printk (kernel/printk/printk.c:2504)
[    9.963635][  T210]  ? snapshot_read.cold (user.c:?)
[    9.963638][  T210]  ? 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)
[    9.963641][  T210]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[    9.963644][  T210]  ? 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)
[    9.963647][  T210]  do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4))
[    9.963650][  T210]  ? exit_notify (kernel/exit.c:780)
[    9.963652][  T210]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[    9.963654][  T210]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    9.963658][  T210]  do_group_exit (kernel/exit.c:1151)
[    9.963661][  T210]  __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160)
[    9.963662][  T210]  x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232)
[    9.963665][  T210]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[    9.963669][  T210]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[    9.963671][  T210]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.963674][  T210] RIP: 0033:0x7f4c123821b8
[    9.963676][  T210] Code: Unable to access opcode bytes at 0x7f4c1238218e.

Code starting with the faulting instruction
===========================================
[    9.963677][  T210] RSP: 002b:00007ffc4ae99008 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
[    9.963679][  T210] RAX: ffffffffffffffda RBX: 00007f4c124b2f88 RCX: 00007f4c123821b8
[    9.963680][  T210] RDX: 00007f4c120ccfc8 RSI: fffffffffffffeb8 RDI: 0000000000000000
[    9.963681][  T210] RBP: 00007ffc4ae99060 R08: 0000000000000000 R09: 0000000000000050
[    9.963682][  T210] R10: 00007ffc4ae98e20 R11: 0000000000000246 R12: 0000000000000001
[    9.963683][  T210] R13: 0000000000000000 R14: 00007f4c124b1680 R15: 00007f4c124b2fa0
| [   11.891675][  T258] softirqs last disabled at (45248): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   11.891678][  T258] Preemption disabled at:
| [   11.891678][  T258] vprintk_emit (kernel/printk/printk.c:2471)
| [   11.891687][  T258] Tainted: [W]=WARN
[   11.891688][  T258] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.891689][  T258] Call Trace:
[   11.891691][  T258]  <TASK>
[   11.891692][  T258]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   11.891698][  T258]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   11.891700][  T258]  __might_resched.cold (kernel/sched/core.c:9234)
[   11.891704][  T258]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   11.891708][  T258]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   11.891713][  T258]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   11.891715][  T258]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.891724][  T258]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   11.891727][  T258]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.891730][  T258]  put_chars (drivers/char/virtio_console.c:1176)
[   11.891733][  T258]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   11.891739][  T258]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   11.891746][  T258]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   11.891749][  T258]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.891754][  T258]  console_emit_next_record (kernel/printk/printk.c:3183)
[   11.891757][  T258]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   11.891759][  T258]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   11.891762][  T258]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.891765][  T258]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.891769][  T258]  console_flush_one_record (kernel/printk/printk.c:3268)
[   11.891773][  T258]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   11.891775][  T258]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.891780][  T258]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   11.891783][  T258]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   11.891784][  T258]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.891786][  T258]  ? 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)
[   11.891790][  T258]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   11.891791][  T258]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   11.891794][  T258]  vprintk_emit (kernel/printk/printk.c:2479)
[   11.891797][  T258]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   11.891799][  T258]  ? save_trace (kernel/locking/lockdep.c:589)
[   11.891803][  T258]  _printk (kernel/printk/printk.c:2504)
[   11.891807][  T258]  ? snapshot_read.cold (user.c:?)
[   11.891810][  T258]  ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928)
[   11.891812][  T258]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   11.891816][  T258]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   11.891818][  T258]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   11.891821][  T258]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   11.891823][  T258]  ? netdev_notice (net/core/dev.c:13194)
[   11.891826][  T258]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   11.891829][  T258]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   11.891831][  T258]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   11.891835][  T258]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   11.891837][  T258]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   11.891838][  T258]  ? register_netdev (net/core/dev.c:11618)
[   11.891840][  T258]  ? 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))
[   11.891845][  T258]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   11.891848][  T258]  ? __kernel_text_address (kernel/extable.c:79)
[   11.891850][  T258]  ? write_profile (profile.c:?)
[   11.891854][  T258]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   11.891860][  T258]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   11.891863][  T258]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   11.891865][  T258]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   11.891866][  T258]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   11.891869][  T258]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   11.891872][  T258]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   11.891874][  T258]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   11.891876][  T258]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   11.891878][  T258]  ? kasan_save_stack (mm/kasan/common.c:58)
[   11.891880][  T258]  ? kasan_save_stack (mm/kasan/common.c:57)
[   11.891882][  T258]  ? kasan_save_track (mm/kasan/common.c:78)
[   11.891883][  T258]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   11.891885][  T258]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.891887][  T258]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   11.891890][  T258]  ? ___sys_sendmsg (net/socket.c:2758)
[   11.891893][  T258]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   11.891895][  T258]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   11.891898][  T258]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.891899][  T258]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.891901][  T258]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.891902][  T258]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.891904][  T258]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   11.891906][  T258]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   11.891909][  T258]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   11.891910][  T258]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   11.891914][  T258]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   11.891915][  T258]  ? nla_get_range_signed (lib/nlattr.c:270)
[   11.891920][  T258]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.891922][  T258]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   11.891927][  T258]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   11.891932][  T258]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   11.891934][  T258]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.891938][  T258]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   11.891940][  T258]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   11.891942][  T258]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   11.891944][  T258]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   11.891947][  T258]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   11.891949][  T258]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   11.891952][  T258]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   11.891953][  T258]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.891958][  T258]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   11.891960][  T258]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   11.891963][  T258]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   11.891966][  T258]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   11.891969][  T258]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   11.891975][  T258]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   11.891977][  T258]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   11.891982][  T258]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   11.891985][  T258]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   11.891988][  T258]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   11.891992][  T258]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   11.891996][  T258]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   11.892000][  T258]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   11.892001][  T258]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   11.892006][  T258]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   11.892009][  T258]  ____sys_sendmsg (net/socket.c:2713)
[   11.892011][  T258]  ? copy_msghdr_from_user (net/socket.c:2650)
[   11.892013][  T258]  ? sock_write_iter (net/socket.c:1269)
[   11.892015][  T258]  ? move_addr_to_kernel (net/socket.c:258)
[   11.892022][  T258]  ___sys_sendmsg (net/socket.c:2767)
[   11.892025][  T258]  ? copy_msghdr_from_user (net/socket.c:2619)
[   11.892040][  T258]  __sys_sendmsg (net/socket.c:2799)
[   11.892043][  T258]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   11.892049][  T258]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.892052][  T258]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   11.892055][  T258]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   11.892058][  T258]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   11.892060][  T258] RIP: 0033:0x7fcfef3ac54e
[   11.892064][  T258] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   11.892065][  T258] RSP: 002b:00007ffd3e803570 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   11.892068][  T258] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fcfef3ac54e
[   11.892069][  T258] RDX: 0000000000000000 RSI: 00007ffd3e803620 RDI: 0000000000000005
[   11.892070][  T258] RBP: 00007ffd3e803580 R08: 0000000000000000 R09: 0000000000000000
[   11.892071][  T258] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a919937
[   11.892071][  T258] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffd3e803ce0
| [   12.895266][  T275] softirqs last disabled at (46096): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   12.895269][  T275] Preemption disabled at:
| [   12.895269][  T275] vprintk_emit (kernel/printk/printk.c:2471)
| [   12.895278][  T275] Tainted: [W]=WARN
[   12.895278][  T275] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.895280][  T275] Call Trace:
[   12.895281][  T275]  <TASK>
[   12.895283][  T275]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   12.895289][  T275]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   12.895290][  T275]  __might_resched.cold (kernel/sched/core.c:9234)
[   12.895295][  T275]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   12.895299][  T275]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   12.895303][  T275]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   12.895305][  T275]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   12.895311][  T275]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   12.895314][  T275]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   12.895318][  T275]  put_chars (drivers/char/virtio_console.c:1176)
[   12.895320][  T275]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   12.895327][  T275]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   12.895334][  T275]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   12.895337][  T275]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.895342][  T275]  console_emit_next_record (kernel/printk/printk.c:3183)
[   12.895346][  T275]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   12.895348][  T275]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   12.895351][  T275]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.895354][  T275]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.895357][  T275]  console_flush_one_record (kernel/printk/printk.c:3268)
[   12.895362][  T275]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   12.895364][  T275]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.895369][  T275]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   12.895372][  T275]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   12.895373][  T275]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.895375][  T275]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   12.895379][  T275]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   12.895380][  T275]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   12.895383][  T275]  vprintk_emit (kernel/printk/printk.c:2479)
[   12.895386][  T275]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   12.895389][  T275]  ? _mutex_trylock_nest_lock (kernel/locking/mutex.c:1227 (discriminator 6))
[   12.895394][  T275]  _printk (kernel/printk/printk.c:2504)
[   12.895398][  T275]  ? snapshot_read.cold (user.c:?)
[   12.895404][  T275]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   12.895407][  T275]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   12.895409][  T275]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   12.895412][  T275]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   12.895415][  T275]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   12.895418][  T275]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   12.895420][  T275]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   12.895423][  T275]  ? netdev_notice (net/core/dev.c:13194)
[   12.895426][  T275]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   12.895429][  T275]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   12.895432][  T275]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   12.895435][  T275]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   12.895437][  T275]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   12.895439][  T275]  ? register_netdev (net/core/dev.c:11618)
[   12.895440][  T275]  ? is_bpf_text_address (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) kernel/bpf/core.c:751 (discriminator 2))
[   12.895446][  T275]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   12.895448][  T275]  ? __kernel_text_address (kernel/extable.c:79)
[   12.895451][  T275]  ? write_profile (profile.c:?)
[   12.895455][  T275]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   12.895460][  T275]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   12.895463][  T275]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   12.895465][  T275]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   12.895467][  T275]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   12.895469][  T275]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   12.895472][  T275]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   12.895474][  T275]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   12.895476][  T275]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   12.895478][  T275]  ? kasan_save_stack (mm/kasan/common.c:58)
[   12.895480][  T275]  ? kasan_save_stack (mm/kasan/common.c:57)
[   12.895481][  T275]  ? kasan_save_track (mm/kasan/common.c:78)
[   12.895482][  T275]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   12.895484][  T275]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.895486][  T275]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   12.895489][  T275]  ? ___sys_sendmsg (net/socket.c:2758)
[   12.895493][  T275]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   12.895495][  T275]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   12.895497][  T275]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.895499][  T275]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.895500][  T275]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.895501][  T275]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.895503][  T275]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   12.895505][  T275]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   12.895507][  T275]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   12.895509][  T275]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   12.895512][  T275]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   12.895513][  T275]  ? nla_get_range_signed (lib/nlattr.c:270)
[   12.895518][  T275]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.895520][  T275]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   12.895525][  T275]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   12.895530][  T275]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   12.895532][  T275]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.895537][  T275]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   12.895539][  T275]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   12.895540][  T275]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   12.895542][  T275]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   12.895546][  T275]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   12.895548][  T275]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   12.895551][  T275]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   12.895552][  T275]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.895557][  T275]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   12.895558][  T275]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   12.895562][  T275]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   12.895565][  T275]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   12.895568][  T275]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   12.895574][  T275]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   12.895576][  T275]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   12.895580][  T275]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   12.895584][  T275]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   12.895586][  T275]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   12.895590][  T275]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   12.895594][  T275]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   12.895598][  T275]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   12.895600][  T275]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   12.895605][  T275]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   12.895608][  T275]  ____sys_sendmsg (net/socket.c:2713)
[   12.895610][  T275]  ? copy_msghdr_from_user (net/socket.c:2650)
[   12.895612][  T275]  ? sock_write_iter (net/socket.c:1269)
[   12.895614][  T275]  ? move_addr_to_kernel (net/socket.c:258)
[   12.895621][  T275]  ___sys_sendmsg (net/socket.c:2767)
[   12.895623][  T275]  ? copy_msghdr_from_user (net/socket.c:2619)
[   12.895639][  T275]  __sys_sendmsg (net/socket.c:2799)
[   12.895642][  T275]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   12.895648][  T275]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.895650][  T275]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   12.895653][  T275]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   12.895656][  T275]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   12.895658][  T275] RIP: 0033:0x7f2d3ed5354e
[   12.895662][  T275] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   12.895663][  T275] RSP: 002b:00007fff8c1cea50 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   12.895666][  T275] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007f2d3ed5354e
[   12.895667][  T275] RDX: 0000000000000000 RSI: 00007fff8c1ceb00 RDI: 0000000000000005
[   12.895668][  T275] RBP: 00007fff8c1cea60 R08: 0000000000000000 R09: 0000000000000000
[   12.895669][  T275] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a919938
[   12.895670][  T275] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fff8c1cf1c0
| [   17.801393][   T71] softirqs last disabled at (23292): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:109)
| [   17.801395][   T71] Preemption disabled at:
| [   17.801396][   T71] 0x0
| [   17.801405][   T71] Tainted: [W]=WARN
[   17.801406][   T71] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   17.801408][   T71] Workqueue: netns cleanup_net
[   17.801411][   T71] Call Trace:
[   17.801413][   T71]  <TASK>
[   17.801415][   T71]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   17.801422][   T71]  __might_resched.cold (kernel/sched/core.c:9234)
[   17.801431][   T71]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   17.801435][   T71]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   17.801439][   T71]  __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))
[   17.801441][   T71]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   17.801448][   T71]  ? 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)
[   17.801451][   T71]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   17.801454][   T71]  put_chars (drivers/char/virtio_console.c:1176)
[   17.801457][   T71]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   17.801464][   T71]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   17.801471][   T71]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   17.801475][   T71]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   17.801479][   T71]  console_emit_next_record (kernel/printk/printk.c:3183)
[   17.801483][   T71]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   17.801485][   T71]  ? 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))
[   17.801488][   T71]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   17.801491][   T71]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   17.801495][   T71]  console_flush_one_record (kernel/printk/printk.c:3268)
[   17.801500][   T71]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   17.801501][   T71]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   17.801507][   T71]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   17.801510][   T71]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   17.801512][   T71]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   17.801513][   T71]  ? 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)
[   17.801517][   T71]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   17.801519][   T71]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   17.801522][   T71]  vprintk_emit (kernel/printk/printk.c:2479)
[   17.801525][   T71]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   17.801526][   T71]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   17.801532][   T71]  _printk (kernel/printk/printk.c:2504)
[   17.801536][   T71]  ? snapshot_read.cold (user.c:?)
[   17.801543][   T71]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   17.801548][   T71]  br_stp_disable_port (net/bridge/br_stp_if.c:106)
[   17.801552][   T71]  br_device_event (net/bridge/br.c:111)
[   17.801554][   T71]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   17.801558][   T71]  ? packet_sendmsg_spkt (af_packet.c:?)
[   17.801564][   T71]  notifier_call_chain (kernel/notifier.c:85)
[   17.801570][   T71]  netif_close_many (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:1829)
[   17.801573][   T71]  ? trace_kfree (./include/trace/events/kmem.h:97 (discriminator 22))
[   17.801576][   T71]  ? __dev_close_many (net/core/dev.c:1804)
[   17.801579][   T71]  ? netif_close_many_and_unlock (net/core/dev.c:12411)
[   17.801583][   T71]  unregister_netdevice_many_notify (net/core/dev.c:12487)
[   17.801586][   T71]  ? ops_undo_list (net/core/net_namespace.c:206 net/core/net_namespace.c:253)
[   17.801588][   T71]  ? worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   17.801590][   T71]  ? kthread (kernel/kthread.c:436)
[   17.801592][   T71]  ? ret_from_fork (arch/x86/kernel/process.c:158)
[   17.801594][   T71]  ? ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
[   17.801597][   T71]  ? unregister_netdevice_queued (./include/linux/list.h:419 (discriminator 3))
[   17.801605][   T71]  default_device_exit_batch (net/core/dev.c:12589 net/core/dev.c:13288)
[   17.801608][   T71]  ? unregister_netdevice_queue (./include/linux/list.h:173)
[   17.801611][   T71]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   17.801614][   T71]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   17.801618][   T71]  ops_undo_list (net/core/net_namespace.c:206 net/core/net_namespace.c:253)
[   17.801622][   T71]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   17.801624][   T71]  ? netns_install (./include/linux/ns_common.h:26)
[   17.801626][   T71]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   17.801629][   T71]  ? idr_destroy (lib/radix-tree.c:310 lib/radix-tree.c:674 lib/radix-tree.c:1563)
[   17.801634][   T71]  cleanup_net (net/core/net_namespace.c:706)
[   17.801637][   T71]  ? net_passive_dec (./include/linux/llist.h:241)
[   17.801641][   T71]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   17.801643][   T71]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   17.801646][   T71]  process_one_work (kernel/workqueue.c:3387)
[   17.801653][   T71]  ? __queue_delayed_work (kernel/workqueue.c:2622)
[   17.801656][   T71]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   17.801664][   T71]  worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   17.801668][   T71]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   17.801670][   T71]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   17.801673][   T71]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   17.801675][   T71]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   17.801677][   T71]  kthread (kernel/kthread.c:436)
[   17.801679][   T71]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   17.801682][   T71]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   17.801685][   T71]  ret_from_fork (arch/x86/kernel/process.c:158)
[   17.801688][   T71]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1))
[   17.801692][   T71]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   17.801695][   T71]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   17.801698][   T71]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   21.111190][  T396] softirqs last disabled at (41734): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   21.111192][  T396] Preemption disabled at:
| [   21.111193][  T396] vprintk_emit (kernel/printk/printk.c:2471)
| [   21.111201][  T396] Tainted: [W]=WARN
[   21.111202][  T396] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   21.111204][  T396] Call Trace:
[   21.111206][  T396]  <TASK>
[   21.111207][  T396]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   21.111213][  T396]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   21.111215][  T396]  __might_resched.cold (kernel/sched/core.c:9234)
[   21.111219][  T396]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   21.111223][  T396]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   21.111228][  T396]  __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))
[   21.111230][  T396]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   21.111236][  T396]  ? 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)
[   21.111239][  T396]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   21.111243][  T396]  put_chars (drivers/char/virtio_console.c:1176)
[   21.111245][  T396]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   21.111251][  T396]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   21.111259][  T396]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   21.111262][  T396]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   21.111267][  T396]  console_emit_next_record (kernel/printk/printk.c:3183)
[   21.111270][  T396]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   21.111272][  T396]  ? 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))
[   21.111275][  T396]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.111278][  T396]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   21.111282][  T396]  console_flush_one_record (kernel/printk/printk.c:3268)
[   21.111286][  T396]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   21.111288][  T396]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   21.111294][  T396]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   21.111296][  T396]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   21.111298][  T396]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.111300][  T396]  ? 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)
[   21.111304][  T396]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   21.111305][  T396]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   21.111308][  T396]  vprintk_emit (kernel/printk/printk.c:2479)
[   21.111311][  T396]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   21.111314][  T396]  ? _mutex_trylock_nest_lock (kernel/locking/mutex.c:1227 (discriminator 6))
[   21.111319][  T396]  _printk (kernel/printk/printk.c:2504)
[   21.111323][  T396]  ? snapshot_read.cold (user.c:?)
[   21.111324][  T396]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   21.111327][  T396]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   21.111330][  T396]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   21.111332][  T396]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   21.111336][  T396]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   21.111339][  T396]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   21.111341][  T396]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   21.111344][  T396]  ? netdev_notice (net/core/dev.c:13194)
[   21.111347][  T396]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   21.111350][  T396]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   21.111353][  T396]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   21.111356][  T396]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   21.111358][  T396]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   21.111360][  T396]  ? register_netdev (net/core/dev.c:11618)
[   21.111361][  T396]  ? 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))
[   21.111367][  T396]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   21.111370][  T396]  ? __kernel_text_address (kernel/extable.c:79)
[   21.111372][  T396]  ? write_profile (profile.c:?)
[   21.111376][  T396]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   21.111382][  T396]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   21.111385][  T396]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   21.111387][  T396]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   21.111388][  T396]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   21.111390][  T396]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   21.111394][  T396]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   21.111395][  T396]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   21.111397][  T396]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   21.111400][  T396]  ? kasan_save_stack (mm/kasan/common.c:58)
[   21.111402][  T396]  ? kasan_save_stack (mm/kasan/common.c:57)
[   21.111403][  T396]  ? kasan_save_track (mm/kasan/common.c:78)
[   21.111404][  T396]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   21.111406][  T396]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   21.111408][  T396]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   21.111411][  T396]  ? ___sys_sendmsg (net/socket.c:2758)
[   21.111415][  T396]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   21.111417][  T396]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   21.111419][  T396]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.111421][  T396]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   21.111422][  T396]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.111423][  T396]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.111425][  T396]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   21.111427][  T396]  ? __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)
[   21.111429][  T396]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   21.111431][  T396]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   21.111434][  T396]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   21.111435][  T396]  ? nla_get_range_signed (lib/nlattr.c:270)
[   21.111444][  T396]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.111446][  T396]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   21.111451][  T396]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   21.111456][  T396]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   21.111458][  T396]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   21.111463][  T396]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   21.111465][  T396]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   21.111466][  T396]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   21.111468][  T396]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   21.111472][  T396]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   21.111474][  T396]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   21.111477][  T396]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   21.111478][  T396]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   21.111483][  T396]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   21.111485][  T396]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   21.111488][  T396]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   21.111491][  T396]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   21.111494][  T396]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   21.111500][  T396]  ? 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))
[   21.111502][  T396]  ? 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))
[   21.111506][  T396]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   21.111510][  T396]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   21.111513][  T396]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   21.111517][  T396]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   21.111521][  T396]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   21.111525][  T396]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   21.111526][  T396]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   21.111531][  T396]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   21.111534][  T396]  ____sys_sendmsg (net/socket.c:2713)
[   21.111536][  T396]  ? copy_msghdr_from_user (net/socket.c:2650)
[   21.111539][  T396]  ? sock_write_iter (net/socket.c:1269)
[   21.111540][  T396]  ? move_addr_to_kernel (net/socket.c:258)
[   21.111547][  T396]  ___sys_sendmsg (net/socket.c:2767)
[   21.111550][  T396]  ? copy_msghdr_from_user (net/socket.c:2619)
[   21.111565][  T396]  __sys_sendmsg (net/socket.c:2799)
[   21.111568][  T396]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   21.111575][  T396]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   21.111577][  T396]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   21.111580][  T396]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   21.111583][  T396]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   21.111586][  T396] RIP: 0033:0x7f2bdef5f54e
[   21.111590][  T396] 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
[   21.111591][  T396] RSP: 002b:00007ffe3cab4cd0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   21.111594][  T396] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007f2bdef5f54e
[   21.111595][  T396] RDX: 0000000000000000 RSI: 00007ffe3cab4d80 RDI: 0000000000000005
[   21.111596][  T396] RBP: 00007ffe3cab4ce0 R08: 0000000000000000 R09: 0000000000000000
[   21.111597][  T396] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a919940
[   21.111598][  T396] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffe3cab5440
| [   22.245917][  T418] softirqs last disabled at (15128): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   22.245919][  T418] Preemption disabled at:
| [   22.245920][  T418] vprintk_emit (kernel/printk/printk.c:2471)
| [   22.245929][  T418] Tainted: [W]=WARN
[   22.245930][  T418] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   22.245931][  T418] Call Trace:
[   22.245933][  T418]  <TASK>
[   22.245934][  T418]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   22.245940][  T418]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   22.245942][  T418]  __might_resched.cold (kernel/sched/core.c:9234)
[   22.245946][  T418]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   22.245950][  T418]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   22.245954][  T418]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   22.245956][  T418]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   22.245963][  T418]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   22.245965][  T418]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   22.245969][  T418]  put_chars (drivers/char/virtio_console.c:1176)
[   22.245972][  T418]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   22.245973][  T418]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   22.245976][  T418]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   22.245982][  T418]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   22.245989][  T418]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   22.245992][  T418]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.245994][  T418]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   22.245998][  T418]  console_emit_next_record (kernel/printk/printk.c:3183)
[   22.246002][  T418]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   22.246004][  T418]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   22.246007][  T418]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.246009][  T418]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   22.246013][  T418]  console_flush_one_record (kernel/printk/printk.c:3268)
[   22.246017][  T418]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   22.246019][  T418]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.246024][  T418]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   22.246027][  T418]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   22.246029][  T418]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.246030][  T418]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   22.246034][  T418]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   22.246036][  T418]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   22.246038][  T418]  vprintk_emit (kernel/printk/printk.c:2479)
[   22.246041][  T418]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   22.246043][  T418]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   22.246046][  T418]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   22.246050][  T418]  _printk (kernel/printk/printk.c:2504)
[   22.246054][  T418]  ? snapshot_read.cold (user.c:?)
[   22.246057][  T418]  ? br_multicast_flood (??:?)
[   22.246061][  T418]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   22.246062][  T418]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   22.246063][  T418]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   22.246067][  T418]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   22.246071][  T418]  br_init_port (net/bridge/br_stp_if.c:39)
[   22.246074][  T418]  new_nbp (net/bridge/br_if.c:449)
[   22.246078][  T418]  br_add_if (net/bridge/br_if.c:592)
[   22.246080][  T418]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   22.246084][  T418]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   22.246089][  T418]  do_set_master (net/core/rtnetlink.c:3071)
[   22.246093][  T418]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   22.246097][  T418]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   22.246100][  T418]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   22.246101][  T418]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   22.246104][  T418]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   22.246108][  T418]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   22.246109][  T418]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   22.246111][  T418]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   22.246114][  T418]  ? kasan_save_stack (mm/kasan/common.c:58)
[   22.246116][  T418]  ? kasan_save_stack (mm/kasan/common.c:57)
[   22.246117][  T418]  ? kasan_save_track (mm/kasan/common.c:78)
[   22.246118][  T418]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   22.246121][  T418]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.246122][  T418]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   22.246125][  T418]  ? ___sys_sendmsg (net/socket.c:2758)
[   22.246129][  T418]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   22.246131][  T418]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   22.246133][  T418]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.246135][  T418]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   22.246137][  T418]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.246138][  T418]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.246139][  T418]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   22.246142][  T418]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   22.246144][  T418]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   22.246146][  T418]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   22.246149][  T418]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   22.246151][  T418]  ? nla_get_range_signed (lib/nlattr.c:270)
[   22.246155][  T418]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.246158][  T418]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   22.246163][  T418]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   22.246168][  T418]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   22.246170][  T418]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.246174][  T418]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   22.246176][  T418]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   22.246178][  T418]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   22.246180][  T418]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   22.246184][  T418]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   22.246186][  T418]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   22.246189][  T418]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   22.246190][  T418]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.246195][  T418]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   22.246197][  T418]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   22.246200][  T418]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   22.246203][  T418]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   22.246206][  T418]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   22.246212][  T418]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   22.246214][  T418]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   22.246219][  T418]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   22.246223][  T418]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   22.246225][  T418]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   22.246229][  T418]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   22.246233][  T418]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   22.246237][  T418]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   22.246239][  T418]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   22.246244][  T418]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   22.246247][  T418]  ____sys_sendmsg (net/socket.c:2713)
[   22.246249][  T418]  ? copy_msghdr_from_user (net/socket.c:2650)
[   22.246251][  T418]  ? sock_write_iter (net/socket.c:1269)
[   22.246253][  T418]  ? move_addr_to_kernel (net/socket.c:258)
[   22.246260][  T418]  ___sys_sendmsg (net/socket.c:2767)
[   22.246263][  T418]  ? copy_msghdr_from_user (net/socket.c:2619)
[   22.246279][  T418]  __sys_sendmsg (net/socket.c:2799)
[   22.246282][  T418]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   22.246288][  T418]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.246291][  T418]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   22.246294][  T418]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   22.246296][  T418]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   22.246299][  T418] RIP: 0033:0x7fcd19d0454e
[   22.246302][  T418] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   22.246304][  T418] RSP: 002b:00007fff4b8f1f00 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   22.246307][  T418] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007fcd19d0454e
[   22.246308][  T418] RDX: 0000000000000000 RSI: 00007fff4b8f1fb0 RDI: 0000000000000005
[   22.246309][  T418] RBP: 00007fff4b8f1f10 R08: 0000000000000000 R09: 0000000000000000
[   22.246310][  T418] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a919941
[   22.246311][  T418] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fff4b8f2680
| [   26.983934][   T71] softirqs last disabled at (200684): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:109)
| [   26.983936][   T71] Preemption disabled at:
| [   26.983937][   T71] 0x0
| [   26.983947][   T71] Tainted: [W]=WARN
[   26.983948][   T71] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   26.983950][   T71] Workqueue: netns cleanup_net
[   26.983953][   T71] Call Trace:
[   26.983954][   T71]  <TASK>
[   26.983956][   T71]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   26.983963][   T71]  __might_resched.cold (kernel/sched/core.c:9234)
[   26.983968][   T71]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   26.983973][   T71]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   26.983977][   T71]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   26.983979][   T71]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   26.983985][   T71]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   26.983988][   T71]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   26.983992][   T71]  put_chars (drivers/char/virtio_console.c:1176)
[   26.983994][   T71]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   26.984001][   T71]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   26.984009][   T71]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   26.984012][   T71]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   26.984017][   T71]  console_emit_next_record (kernel/printk/printk.c:3183)
[   26.984021][   T71]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   26.984023][   T71]  ? 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))
[   26.984026][   T71]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.984029][   T71]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   26.984033][   T71]  console_flush_one_record (kernel/printk/printk.c:3268)
[   26.984038][   T71]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   26.984040][   T71]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   26.984045][   T71]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   26.984048][   T71]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   26.984050][   T71]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.984052][   T71]  ? 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)
[   26.984055][   T71]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   26.984057][   T71]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   26.984060][   T71]  vprintk_emit (kernel/printk/printk.c:2479)
[   26.984064][   T71]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   26.984065][   T71]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   26.984067][   T71]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   26.984069][   T71]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   26.984074][   T71]  _printk (kernel/printk/printk.c:2504)
[   26.984078][   T71]  ? snapshot_read.cold (user.c:?)
[   26.984086][   T71]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   26.984091][   T71]  br_stp_disable_port (net/bridge/br_stp_if.c:106)
[   26.984094][   T71]  br_device_event (net/bridge/br.c:111)
[   26.984099][   T71]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   26.984103][   T71]  ? packet_sendmsg_spkt (af_packet.c:?)
[   26.984109][   T71]  notifier_call_chain (kernel/notifier.c:85)
[   26.984115][   T71]  netif_close_many (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:1829)
[   26.984118][   T71]  ? trace_kfree (./include/trace/events/kmem.h:97 (discriminator 22))
[   26.984121][   T71]  ? __dev_close_many (net/core/dev.c:1804)
[   26.984124][   T71]  ? netif_close_many_and_unlock (net/core/dev.c:12411)
[   26.984129][   T71]  unregister_netdevice_many_notify (net/core/dev.c:12487)
[   26.984131][   T71]  ? ops_undo_list (net/core/net_namespace.c:206 net/core/net_namespace.c:253)
[   26.984133][   T71]  ? worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   26.984135][   T71]  ? kthread (kernel/kthread.c:436)
[   26.984137][   T71]  ? ret_from_fork (arch/x86/kernel/process.c:158)
[   26.984140][   T71]  ? ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
[   26.984143][   T71]  ? unregister_netdevice_queued (./include/linux/list.h:419 (discriminator 3))
[   26.984151][   T71]  default_device_exit_batch (net/core/dev.c:12589 net/core/dev.c:13288)
[   26.984154][   T71]  ? unregister_netdevice_queue (./include/linux/list.h:173)
[   26.984157][   T71]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   26.984159][   T71]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   26.984164][   T71]  ops_undo_list (net/core/net_namespace.c:206 net/core/net_namespace.c:253)
[   26.984167][   T71]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   26.984170][   T71]  ? netns_install (./include/linux/ns_common.h:26)
[   26.984172][   T71]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   26.984175][   T71]  ? idr_destroy (lib/radix-tree.c:310 lib/radix-tree.c:674 lib/radix-tree.c:1563)
[   26.984179][   T71]  cleanup_net (net/core/net_namespace.c:706)
[   26.984183][   T71]  ? net_passive_dec (./include/linux/llist.h:241)
[   26.984187][   T71]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   26.984188][   T71]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.984192][   T71]  process_one_work (kernel/workqueue.c:3387)
[   26.984199][   T71]  ? __queue_delayed_work (kernel/workqueue.c:2622)
[   26.984202][   T71]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   26.984209][   T71]  worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   26.984214][   T71]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   26.984216][   T71]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   26.984219][   T71]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   26.984221][   T71]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   26.984223][   T71]  kthread (kernel/kthread.c:436)
[   26.984225][   T71]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   26.984229][   T71]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   26.984232][   T71]  ret_from_fork (arch/x86/kernel/process.c:158)
[   26.984235][   T71]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1))
[   26.984238][   T71]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   26.984241][   T71]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   26.984244][   T71]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   29.456289][  T522] softirqs last disabled at (39696): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   29.456291][  T522] Preemption disabled at:
| [   29.456292][  T522] vprintk_emit (kernel/printk/printk.c:2471)
| [   29.456300][  T522] Tainted: [W]=WARN
[   29.456301][  T522] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   29.456302][  T522] Call Trace:
[   29.456304][  T522]  <TASK>
[   29.456305][  T522]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   29.456311][  T522]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   29.456313][  T522]  __might_resched.cold (kernel/sched/core.c:9234)
[   29.456317][  T522]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   29.456321][  T522]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   29.456325][  T522]  __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))
[   29.456327][  T522]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   29.456333][  T522]  ? 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)
[   29.456336][  T522]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   29.456340][  T522]  put_chars (drivers/char/virtio_console.c:1176)
[   29.456342][  T522]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   29.456348][  T522]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   29.456355][  T522]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   29.456358][  T522]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   29.456363][  T522]  console_emit_next_record (kernel/printk/printk.c:3183)
[   29.456367][  T522]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   29.456369][  T522]  ? 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))
[   29.456372][  T522]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.456375][  T522]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   29.456378][  T522]  console_flush_one_record (kernel/printk/printk.c:3268)
[   29.456382][  T522]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   29.456384][  T522]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   29.456389][  T522]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   29.456392][  T522]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   29.456394][  T522]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.456396][  T522]  ? 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)
[   29.456399][  T522]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   29.456401][  T522]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   29.456403][  T522]  vprintk_emit (kernel/printk/printk.c:2479)
[   29.456406][  T522]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   29.456409][  T522]  ? _mutex_trylock_nest_lock (kernel/locking/mutex.c:1227 (discriminator 6))
[   29.456414][  T522]  _printk (kernel/printk/printk.c:2504)
[   29.456418][  T522]  ? snapshot_read.cold (user.c:?)
[   29.456419][  T522]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   29.456422][  T522]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   29.456425][  T522]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   29.456427][  T522]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   29.456430][  T522]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   29.456433][  T522]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   29.456435][  T522]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   29.456438][  T522]  ? netdev_notice (net/core/dev.c:13194)
[   29.456441][  T522]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   29.456444][  T522]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   29.456446][  T522]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   29.456450][  T522]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   29.456451][  T522]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   29.456454][  T522]  ? register_netdev (net/core/dev.c:11618)
[   29.456455][  T522]  ? 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))
[   29.456460][  T522]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   29.456463][  T522]  ? __kernel_text_address (kernel/extable.c:79)
[   29.456465][  T522]  ? write_profile (profile.c:?)
[   29.456469][  T522]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   29.456475][  T522]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   29.456481][  T522]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   29.456483][  T522]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   29.456485][  T522]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   29.456487][  T522]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   29.456490][  T522]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   29.456492][  T522]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   29.456494][  T522]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   29.456496][  T522]  ? kasan_save_stack (mm/kasan/common.c:58)
[   29.456498][  T522]  ? kasan_save_stack (mm/kasan/common.c:57)
[   29.456499][  T522]  ? kasan_save_track (mm/kasan/common.c:78)
[   29.456501][  T522]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   29.456503][  T522]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   29.456505][  T522]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   29.456508][  T522]  ? ___sys_sendmsg (net/socket.c:2758)
[   29.456511][  T522]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   29.456513][  T522]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   29.456516][  T522]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.456518][  T522]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   29.456519][  T522]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.456520][  T522]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.456522][  T522]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   29.456524][  T522]  ? __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)
[   29.456526][  T522]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   29.456527][  T522]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   29.456531][  T522]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   29.456532][  T522]  ? nla_get_range_signed (lib/nlattr.c:270)
[   29.456537][  T522]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.456539][  T522]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   29.456544][  T522]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   29.456549][  T522]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   29.456551][  T522]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   29.456555][  T522]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   29.456557][  T522]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   29.456559][  T522]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   29.456561][  T522]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   29.456565][  T522]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   29.456567][  T522]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   29.456570][  T522]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   29.456571][  T522]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   29.456575][  T522]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   29.456577][  T522]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   29.456581][  T522]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   29.456584][  T522]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   29.456587][  T522]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   29.456593][  T522]  ? 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))
[   29.456595][  T522]  ? 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))
[   29.456599][  T522]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   29.456603][  T522]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   29.456606][  T522]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   29.456610][  T522]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   29.456614][  T522]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   29.456617][  T522]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   29.456619][  T522]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   29.456624][  T522]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   29.456627][  T522]  ____sys_sendmsg (net/socket.c:2713)
[   29.456629][  T522]  ? copy_msghdr_from_user (net/socket.c:2650)
[   29.456631][  T522]  ? sock_write_iter (net/socket.c:1269)
[   29.456633][  T522]  ? move_addr_to_kernel (net/socket.c:258)
[   29.456640][  T522]  ___sys_sendmsg (net/socket.c:2767)
[   29.456643][  T522]  ? copy_msghdr_from_user (net/socket.c:2619)
[   29.456658][  T522]  __sys_sendmsg (net/socket.c:2799)
[   29.456661][  T522]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   29.456667][  T522]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.456670][  T522]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   29.456673][  T522]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   29.456676][  T522]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   29.456678][  T522] RIP: 0033:0x7f5f963e554e
[   29.456682][  T522] 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
[   29.456684][  T522] RSP: 002b:00007ffe78f8fa10 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   29.456686][  T522] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007f5f963e554e
[   29.456688][  T522] RDX: 0000000000000000 RSI: 00007ffe78f8fac0 RDI: 0000000000000005
[   29.456689][  T522] RBP: 00007ffe78f8fa20 R08: 0000000000000000 R09: 0000000000000000
[   29.456690][  T522] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a919948
[   29.456690][  T522] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffe78f90180
| [   35.530683][  T582] softirqs last disabled at (40506): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   35.530686][  T582] Preemption disabled at:
| [   35.530686][  T582] vprintk_emit (kernel/printk/printk.c:2471)
| [   35.530695][  T582] Tainted: [W]=WARN
[   35.530696][  T582] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   35.530697][  T582] Call Trace:
[   35.530699][  T582]  <TASK>
[   35.530700][  T582]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   35.530707][  T582]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   35.530708][  T582]  __might_resched.cold (kernel/sched/core.c:9234)
[   35.530713][  T582]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   35.530716][  T582]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   35.530723][  T582]  __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))
[   35.530725][  T582]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   35.530731][  T582]  ? 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)
[   35.530734][  T582]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   35.530738][  T582]  put_chars (drivers/char/virtio_console.c:1176)
[   35.530740][  T582]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   35.530746][  T582]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   35.530753][  T582]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   35.530756][  T582]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   35.530761][  T582]  console_emit_next_record (kernel/printk/printk.c:3183)
[   35.530765][  T582]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   35.530767][  T582]  ? 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))
[   35.530770][  T582]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   35.530772][  T582]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   35.530776][  T582]  console_flush_one_record (kernel/printk/printk.c:3268)
[   35.530780][  T582]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   35.530782][  T582]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   35.530787][  T582]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   35.530790][  T582]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   35.530792][  T582]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   35.530794][  T582]  ? 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)
[   35.530797][  T582]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   35.530799][  T582]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   35.530802][  T582]  vprintk_emit (kernel/printk/printk.c:2479)
[   35.530805][  T582]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   35.530807][  T582]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   35.530808][  T582]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   35.530810][  T582]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   35.530814][  T582]  _printk (kernel/printk/printk.c:2504)
[   35.530818][  T582]  ? snapshot_read.cold (user.c:?)
[   35.530819][  T582]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   35.530822][  T582]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   35.530825][  T582]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   35.530827][  T582]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   35.530831][  T582]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   35.530833][  T582]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   35.530836][  T582]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   35.530839][  T582]  ? netdev_notice (net/core/dev.c:13194)
[   35.530841][  T582]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   35.530844][  T582]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   35.530846][  T582]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   35.530850][  T582]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   35.530852][  T582]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   35.530855][  T582]  ? netif_set_mtu_ext (net/core/dev.c:2350 net/core/dev.c:9952)
[   35.530858][  T582]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   35.530863][  T582]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   35.530868][  T582]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   35.530872][  T582]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   35.530875][  T582]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   35.530877][  T582]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   35.530878][  T582]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   35.530882][  T582]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   35.530883][  T582]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   35.530885][  T582]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   35.530888][  T582]  ? kasan_save_stack (mm/kasan/common.c:58)
[   35.530890][  T582]  ? kasan_save_stack (mm/kasan/common.c:57)
[   35.530891][  T582]  ? kasan_save_track (mm/kasan/common.c:78)
[   35.530892][  T582]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   35.530894][  T582]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   35.530896][  T582]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   35.530899][  T582]  ? ___sys_sendmsg (net/socket.c:2758)
[   35.530903][  T582]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   35.530905][  T582]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   35.530907][  T582]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   35.530909][  T582]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   35.530911][  T582]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   35.530912][  T582]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   35.530913][  T582]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   35.530915][  T582]  ? __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)
[   35.530918][  T582]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   35.530920][  T582]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   35.530923][  T582]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   35.530924][  T582]  ? nla_get_range_signed (lib/nlattr.c:270)
[   35.530929][  T582]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   35.530931][  T582]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   35.530936][  T582]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   35.530942][  T582]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   35.530943][  T582]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   35.530948][  T582]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   35.530950][  T582]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   35.530952][  T582]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   35.530953][  T582]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   35.530957][  T582]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   35.530959][  T582]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   35.530962][  T582]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   35.530964][  T582]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   35.530968][  T582]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   35.530970][  T582]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   35.530973][  T582]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   35.530977][  T582]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   35.530979][  T582]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   35.530986][  T582]  ? 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))
[   35.530988][  T582]  ? 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))
[   35.530992][  T582]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   35.530996][  T582]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   35.530998][  T582]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   35.531003][  T582]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   35.531007][  T582]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   35.531010][  T582]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   35.531012][  T582]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   35.531017][  T582]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   35.531020][  T582]  ____sys_sendmsg (net/socket.c:2713)
[   35.531022][  T582]  ? copy_msghdr_from_user (net/socket.c:2650)
[   35.531024][  T582]  ? sock_write_iter (net/socket.c:1269)
[   35.531026][  T582]  ? move_addr_to_kernel (net/socket.c:258)
[   35.531033][  T582]  ___sys_sendmsg (net/socket.c:2767)
[   35.531036][  T582]  ? copy_msghdr_from_user (net/socket.c:2619)
[   35.531051][  T582]  __sys_sendmsg (net/socket.c:2799)
[   35.531054][  T582]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   35.531060][  T582]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   35.531063][  T582]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   35.531066][  T582]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   35.531069][  T582]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   35.531071][  T582] RIP: 0033:0x7fd7cd6e954e
[   35.531075][  T582] 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
[   35.531076][  T582] RSP: 002b:00007ffde8c6c130 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   35.531079][  T582] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007fd7cd6e954e
[   35.531080][  T582] RDX: 0000000000000000 RSI: 00007ffde8c6c1e0 RDI: 0000000000000005
[   35.531081][  T582] RBP: 00007ffde8c6c140 R08: 0000000000000000 R09: 0000000000000000
[   35.531082][  T582] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91994e
[   35.531082][  T582] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffde8c6c8a0
| [   36.761327][  T629] softirqs last disabled at (32490): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   36.761329][  T629] Preemption disabled at:
| [   36.761330][  T629] vprintk_emit (kernel/printk/printk.c:2471)
| [   36.761339][  T629] Tainted: [W]=WARN
[   36.761339][  T629] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   36.761341][  T629] Call Trace:
[   36.761342][  T629]  <TASK>
[   36.761344][  T629]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   36.761349][  T629]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   36.761351][  T629]  __might_resched.cold (kernel/sched/core.c:9234)
[   36.761355][  T629]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   36.761359][  T629]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   36.761364][  T629]  __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))
[   36.761366][  T629]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   36.761372][  T629]  ? 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)
[   36.761374][  T629]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   36.761378][  T629]  put_chars (drivers/char/virtio_console.c:1176)
[   36.761380][  T629]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   36.761386][  T629]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   36.761394][  T629]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   36.761397][  T629]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   36.761401][  T629]  console_emit_next_record (kernel/printk/printk.c:3183)
[   36.761405][  T629]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   36.761407][  T629]  ? 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))
[   36.761410][  T629]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   36.761412][  T629]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   36.761416][  T629]  console_flush_one_record (kernel/printk/printk.c:3268)
[   36.761421][  T629]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   36.761422][  T629]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   36.761428][  T629]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   36.761430][  T629]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   36.761432][  T629]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   36.761434][  T629]  ? 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)
[   36.761437][  T629]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   36.761439][  T629]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   36.761442][  T629]  vprintk_emit (kernel/printk/printk.c:2479)
[   36.761445][  T629]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   36.761446][  T629]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   36.761448][  T629]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   36.761450][  T629]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   36.761454][  T629]  _printk (kernel/printk/printk.c:2504)
[   36.761458][  T629]  ? snapshot_read.cold (user.c:?)
[   36.761459][  T629]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   36.761462][  T629]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   36.761465][  T629]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   36.761467][  T629]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   36.761470][  T629]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   36.761473][  T629]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   36.761475][  T629]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   36.761478][  T629]  ? netdev_notice (net/core/dev.c:13194)
[   36.761481][  T629]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   36.761484][  T629]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   36.761486][  T629]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   36.761489][  T629]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   36.761491][  T629]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   36.761494][  T629]  ? netif_set_mtu_ext (net/core/dev.c:2350 net/core/dev.c:9952)
[   36.761498][  T629]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   36.761502][  T629]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   36.761508][  T629]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   36.761517][  T629]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   36.761520][  T629]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   36.761522][  T629]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   36.761524][  T629]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   36.761527][  T629]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   36.761529][  T629]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   36.761531][  T629]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   36.761533][  T629]  ? kasan_save_stack (mm/kasan/common.c:58)
[   36.761535][  T629]  ? kasan_save_stack (mm/kasan/common.c:57)
[   36.761536][  T629]  ? kasan_save_track (mm/kasan/common.c:78)
[   36.761538][  T629]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   36.761540][  T629]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   36.761542][  T629]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   36.761545][  T629]  ? ___sys_sendmsg (net/socket.c:2758)
[   36.761548][  T629]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   36.761550][  T629]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   36.761553][  T629]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   36.761555][  T629]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   36.761556][  T629]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   36.761557][  T629]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   36.761559][  T629]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   36.761561][  T629]  ? __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)
[   36.761564][  T629]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   36.761566][  T629]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   36.761569][  T629]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   36.761570][  T629]  ? nla_get_range_signed (lib/nlattr.c:270)
[   36.761575][  T629]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   36.761577][  T629]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   36.761582][  T629]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   36.761587][  T629]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   36.761589][  T629]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   36.761594][  T629]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   36.761595][  T629]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   36.761597][  T629]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   36.761599][  T629]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   36.761603][  T629]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   36.761605][  T629]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   36.761608][  T629]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   36.761609][  T629]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   36.761614][  T629]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   36.761615][  T629]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   36.761619][  T629]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   36.761622][  T629]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   36.761625][  T629]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   36.761631][  T629]  ? 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))
[   36.761633][  T629]  ? 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))
[   36.761637][  T629]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   36.761641][  T629]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   36.761643][  T629]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   36.761647][  T629]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   36.761651][  T629]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   36.761655][  T629]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   36.761657][  T629]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   36.761662][  T629]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   36.761665][  T629]  ____sys_sendmsg (net/socket.c:2713)
[   36.761667][  T629]  ? copy_msghdr_from_user (net/socket.c:2650)
[   36.761669][  T629]  ? sock_write_iter (net/socket.c:1269)
[   36.761671][  T629]  ? move_addr_to_kernel (net/socket.c:258)
[   36.761678][  T629]  ___sys_sendmsg (net/socket.c:2767)
[   36.761680][  T629]  ? copy_msghdr_from_user (net/socket.c:2619)
[   36.761696][  T629]  __sys_sendmsg (net/socket.c:2799)
[   36.761699][  T629]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   36.761705][  T629]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   36.761708][  T629]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   36.761710][  T629]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   36.761713][  T629]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   36.761715][  T629] RIP: 0033:0x7f1e9919c54e
[   36.761721][  T629] 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
[   36.761722][  T629] RSP: 002b:00007ffd9478b760 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   36.761725][  T629] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007f1e9919c54e
[   36.761726][  T629] RDX: 0000000000000000 RSI: 00007ffd9478b810 RDI: 0000000000000005
[   36.761727][  T629] RBP: 00007ffd9478b770 R08: 0000000000000000 R09: 0000000000000000
[   36.761728][  T629] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a919950
[   36.761729][  T629] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffd9478bed0
| [   38.076505][  T676] softirqs last disabled at (37822): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   38.076508][  T676] Preemption disabled at:
| [   38.076509][  T676] vprintk_emit (kernel/printk/printk.c:2471)
| [   38.076524][  T676] Tainted: [W]=WARN
[   38.076526][  T676] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   38.076528][  T676] Call Trace:
[   38.076530][  T676]  <TASK>
[   38.076532][  T676]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   38.076540][  T676]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   38.076542][  T676]  __might_resched.cold (kernel/sched/core.c:9234)
[   38.076548][  T676]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   38.076554][  T676]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   38.076561][  T676]  __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))
[   38.076564][  T676]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   38.076574][  T676]  ? 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)
[   38.076577][  T676]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   38.076583][  T676]  put_chars (drivers/char/virtio_console.c:1176)
[   38.076587][  T676]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   38.076598][  T676]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   38.076611][  T676]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   38.076616][  T676]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   38.076623][  T676]  console_emit_next_record (kernel/printk/printk.c:3183)
[   38.076629][  T676]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   38.076632][  T676]  ? 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))
[   38.076637][  T676]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   38.076641][  T676]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   38.076648][  T676]  console_flush_one_record (kernel/printk/printk.c:3268)
[   38.076655][  T676]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   38.076658][  T676]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   38.076667][  T676]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   38.076671][  T676]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   38.076674][  T676]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   38.076677][  T676]  ? 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)
[   38.076683][  T676]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   38.076686][  T676]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   38.076691][  T676]  vprintk_emit (kernel/printk/printk.c:2479)
[   38.076696][  T676]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   38.076699][  T676]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   38.076701][  T676]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   38.076704][  T676]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   38.076711][  T676]  _printk (kernel/printk/printk.c:2504)
[   38.076716][  T676]  ? snapshot_read.cold (user.c:?)
[   38.076721][  T676]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   38.076726][  T676]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   38.076729][  T676]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   38.076733][  T676]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   38.076738][  T676]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   38.076742][  T676]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   38.076746][  T676]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   38.076751][  T676]  ? netdev_notice (net/core/dev.c:13194)
[   38.076755][  T676]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   38.076760][  T676]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   38.076764][  T676]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   38.076771][  T676]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   38.076774][  T676]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   38.076779][  T676]  ? netif_set_mtu_ext (net/core/dev.c:2350 net/core/dev.c:9952)
[   38.076785][  T676]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   38.076793][  T676]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   38.076802][  T676]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   38.076808][  T676]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   38.076813][  T676]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   38.076815][  T676]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   38.076818][  T676]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   38.076823][  T676]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   38.076826][  T676]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   38.076829][  T676]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   38.076833][  T676]  ? kasan_save_stack (mm/kasan/common.c:58)
[   38.076836][  T676]  ? kasan_save_stack (mm/kasan/common.c:57)
[   38.076838][  T676]  ? kasan_save_track (mm/kasan/common.c:78)
[   38.076841][  T676]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   38.076845][  T676]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   38.076848][  T676]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   38.076852][  T676]  ? ___sys_sendmsg (net/socket.c:2758)
[   38.076858][  T676]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   38.076861][  T676]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   38.076866][  T676]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   38.076869][  T676]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   38.076871][  T676]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   38.076873][  T676]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   38.076876][  T676]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   38.076880][  T676]  ? __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)
[   38.076884][  T676]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   38.076887][  T676]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   38.076893][  T676]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   38.076895][  T676]  ? nla_get_range_signed (lib/nlattr.c:270)
[   38.076903][  T676]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   38.076907][  T676]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   38.076916][  T676]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   38.076926][  T676]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   38.076929][  T676]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   38.076937][  T676]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   38.076940][  T676]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   38.076943][  T676]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   38.076946][  T676]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   38.076952][  T676]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   38.076956][  T676]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   38.076962][  T676]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   38.076964][  T676]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   38.076971][  T676]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   38.076974][  T676]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   38.076980][  T676]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   38.076985][  T676]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   38.076990][  T676]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   38.077001][  T676]  ? 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))
[   38.077004][  T676]  ? 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))
[   38.077011][  T676]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   38.077018][  T676]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   38.077022][  T676]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   38.077029][  T676]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   38.077036][  T676]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   38.077043][  T676]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   38.077045][  T676]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   38.077053][  T676]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   38.077058][  T676]  ____sys_sendmsg (net/socket.c:2713)
[   38.077061][  T676]  ? copy_msghdr_from_user (net/socket.c:2650)
[   38.077065][  T676]  ? sock_write_iter (net/socket.c:1269)
[   38.077067][  T676]  ? move_addr_to_kernel (net/socket.c:258)
[   38.077080][  T676]  ___sys_sendmsg (net/socket.c:2767)
[   38.077085][  T676]  ? copy_msghdr_from_user (net/socket.c:2619)
[   38.077114][  T676]  __sys_sendmsg (net/socket.c:2799)
[   38.077118][  T676]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   38.077129][  T676]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   38.077135][  T676]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   38.077138][  T676]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   38.077143][  T676]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   38.077146][  T676] RIP: 0033:0x7f4f6687b54e
[   38.077151][  T676] 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
[   38.077153][  T676] RSP: 002b:00007fff8eff3880 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   38.077156][  T676] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007f4f6687b54e
[   38.077158][  T676] RDX: 0000000000000000 RSI: 00007fff8eff3930 RDI: 0000000000000005
[   38.077160][  T676] RBP: 00007fff8eff3890 R08: 0000000000000000 R09: 0000000000000000
[   38.077161][  T676] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a919951
[   38.077162][  T676] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fff8eff3ff0
| [   39.334897][  T723] softirqs last disabled at (35486): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   39.334899][  T723] Preemption disabled at:
| [   39.334900][  T723] vprintk_emit (kernel/printk/printk.c:2471)
| [   39.334909][  T723] Tainted: [W]=WARN
[   39.334910][  T723] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   39.334911][  T723] Call Trace:
[   39.334913][  T723]  <TASK>
[   39.334914][  T723]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   39.334920][  T723]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   39.334922][  T723]  __might_resched.cold (kernel/sched/core.c:9234)
[   39.334926][  T723]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   39.334930][  T723]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   39.334934][  T723]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   39.334936][  T723]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   39.334943][  T723]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   39.334945][  T723]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   39.334949][  T723]  put_chars (drivers/char/virtio_console.c:1176)
[   39.334952][  T723]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   39.334958][  T723]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   39.334965][  T723]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   39.334968][  T723]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   39.334973][  T723]  console_emit_next_record (kernel/printk/printk.c:3183)
[   39.334977][  T723]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   39.334978][  T723]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   39.334982][  T723]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   39.334984][  T723]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   39.334988][  T723]  console_flush_one_record (kernel/printk/printk.c:3268)
[   39.334992][  T723]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   39.334994][  T723]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   39.334999][  T723]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   39.335002][  T723]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   39.335004][  T723]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   39.335006][  T723]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   39.335009][  T723]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   39.335011][  T723]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   39.335014][  T723]  vprintk_emit (kernel/printk/printk.c:2479)
[   39.335017][  T723]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   39.335019][  T723]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   39.335021][  T723]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   39.335022][  T723]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   39.335026][  T723]  _printk (kernel/printk/printk.c:2504)
[   39.335030][  T723]  ? snapshot_read.cold (user.c:?)
[   39.335032][  T723]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   39.335034][  T723]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   39.335037][  T723]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   39.335039][  T723]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   39.335042][  T723]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   39.335045][  T723]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   39.335047][  T723]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   39.335050][  T723]  ? netdev_notice (net/core/dev.c:13194)
[   39.335053][  T723]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   39.335056][  T723]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   39.335058][  T723]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   39.335061][  T723]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   39.335063][  T723]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   39.335067][  T723]  ? netif_set_mtu_ext (net/core/dev.c:2350 net/core/dev.c:9952)
[   39.335070][  T723]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   39.335074][  T723]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   39.335080][  T723]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   39.335083][  T723]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   39.335087][  T723]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   39.335088][  T723]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   39.335090][  T723]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   39.335094][  T723]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   39.335096][  T723]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   39.335097][  T723]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   39.335100][  T723]  ? kasan_save_stack (mm/kasan/common.c:58)
[   39.335101][  T723]  ? kasan_save_stack (mm/kasan/common.c:57)
[   39.335103][  T723]  ? kasan_save_track (mm/kasan/common.c:78)
[   39.335104][  T723]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   39.335106][  T723]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   39.335108][  T723]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   39.335111][  T723]  ? ___sys_sendmsg (net/socket.c:2758)
[   39.335114][  T723]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   39.335116][  T723]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   39.335119][  T723]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   39.335121][  T723]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   39.335122][  T723]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   39.335123][  T723]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   39.335125][  T723]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   39.335127][  T723]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   39.335130][  T723]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   39.335132][  T723]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   39.335135][  T723]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   39.335136][  T723]  ? nla_get_range_signed (lib/nlattr.c:270)
[   39.335141][  T723]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   39.335144][  T723]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   39.335149][  T723]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   39.335154][  T723]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   39.335156][  T723]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   39.335160][  T723]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   39.335162][  T723]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   39.335164][  T723]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   39.335166][  T723]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   39.335169][  T723]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   39.335171][  T723]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   39.335174][  T723]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   39.335176][  T723]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   39.335180][  T723]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   39.335182][  T723]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   39.335185][  T723]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   39.335188][  T723]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   39.335191][  T723]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   39.335198][  T723]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   39.335200][  T723]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   39.335204][  T723]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   39.335208][  T723]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   39.335210][  T723]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   39.335214][  T723]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   39.335218][  T723]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   39.335222][  T723]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   39.335224][  T723]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   39.335229][  T723]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   39.335232][  T723]  ____sys_sendmsg (net/socket.c:2713)
[   39.335234][  T723]  ? copy_msghdr_from_user (net/socket.c:2650)
[   39.335236][  T723]  ? sock_write_iter (net/socket.c:1269)
[   39.335238][  T723]  ? move_addr_to_kernel (net/socket.c:258)
[   39.335245][  T723]  ___sys_sendmsg (net/socket.c:2767)
[   39.335248][  T723]  ? copy_msghdr_from_user (net/socket.c:2619)
[   39.335263][  T723]  __sys_sendmsg (net/socket.c:2799)
[   39.335266][  T723]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   39.335272][  T723]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   39.335275][  T723]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   39.335278][  T723]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   39.335281][  T723]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   39.335283][  T723] RIP: 0033:0x7ff84ded754e
[   39.335287][  T723] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   39.335288][  T723] RSP: 002b:00007ffe9c01e350 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   39.335291][  T723] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007ff84ded754e
[   39.335292][  T723] RDX: 0000000000000000 RSI: 00007ffe9c01e400 RDI: 0000000000000005
[   39.335293][  T723] RBP: 00007ffe9c01e360 R08: 0000000000000000 R09: 0000000000000000
[   39.335294][  T723] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a919952
[   39.335295][  T723] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffe9c01eac0
| [   42.141354][  T818] softirqs last disabled at (37476): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   42.141357][  T818] Preemption disabled at:
| [   42.141357][  T818] vprintk_emit (kernel/printk/printk.c:2471)
| [   42.141365][  T818] Tainted: [W]=WARN
[   42.141366][  T818] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   42.141368][  T818] Call Trace:
[   42.141369][  T818]  <TASK>
[   42.141371][  T818]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   42.141377][  T818]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   42.141379][  T818]  __might_resched.cold (kernel/sched/core.c:9234)
[   42.141383][  T818]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   42.141387][  T818]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   42.141392][  T818]  __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))
[   42.141393][  T818]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   42.141400][  T818]  ? 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)
[   42.141402][  T818]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   42.141406][  T818]  put_chars (drivers/char/virtio_console.c:1176)
[   42.141409][  T818]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   42.141415][  T818]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   42.141422][  T818]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   42.141426][  T818]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   42.141430][  T818]  console_emit_next_record (kernel/printk/printk.c:3183)
[   42.141434][  T818]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   42.141436][  T818]  ? 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))
[   42.141439][  T818]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   42.141442][  T818]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   42.141446][  T818]  console_flush_one_record (kernel/printk/printk.c:3268)
[   42.141450][  T818]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   42.141452][  T818]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   42.141457][  T818]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   42.141460][  T818]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   42.141462][  T818]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   42.141463][  T818]  ? 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)
[   42.141467][  T818]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   42.141469][  T818]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   42.141471][  T818]  vprintk_emit (kernel/printk/printk.c:2479)
[   42.141474][  T818]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   42.141477][  T818]  ? _mutex_trylock_nest_lock (kernel/locking/mutex.c:1227 (discriminator 6))
[   42.141482][  T818]  _printk (kernel/printk/printk.c:2504)
[   42.141486][  T818]  ? snapshot_read.cold (user.c:?)
[   42.141487][  T818]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   42.141490][  T818]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   42.141493][  T818]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   42.141495][  T818]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   42.141499][  T818]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   42.141502][  T818]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   42.141504][  T818]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   42.141507][  T818]  ? netdev_notice (net/core/dev.c:13194)
[   42.141509][  T818]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   42.141512][  T818]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   42.141515][  T818]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   42.141518][  T818]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   42.141520][  T818]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   42.141522][  T818]  ? register_netdev (net/core/dev.c:11618)
[   42.141523][  T818]  ? 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))
[   42.141529][  T818]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   42.141531][  T818]  ? __kernel_text_address (kernel/extable.c:79)
[   42.141534][  T818]  ? write_profile (profile.c:?)
[   42.141543][  T818]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   42.141548][  T818]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   42.141552][  T818]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   42.141554][  T818]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   42.141555][  T818]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   42.141557][  T818]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   42.141560][  T818]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   42.141562][  T818]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   42.141564][  T818]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   42.141566][  T818]  ? kasan_save_stack (mm/kasan/common.c:58)
[   42.141568][  T818]  ? kasan_save_stack (mm/kasan/common.c:57)
[   42.141569][  T818]  ? kasan_save_track (mm/kasan/common.c:78)
[   42.141570][  T818]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   42.141573][  T818]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   42.141575][  T818]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   42.141577][  T818]  ? ___sys_sendmsg (net/socket.c:2758)
[   42.141581][  T818]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   42.141583][  T818]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   42.141586][  T818]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   42.141587][  T818]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   42.141589][  T818]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   42.141590][  T818]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   42.141591][  T818]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   42.141594][  T818]  ? __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)
[   42.141595][  T818]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   42.141597][  T818]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   42.141600][  T818]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   42.141601][  T818]  ? nla_get_range_signed (lib/nlattr.c:270)
[   42.141606][  T818]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   42.141608][  T818]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   42.141613][  T818]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   42.141618][  T818]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   42.141620][  T818]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   42.141624][  T818]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   42.141626][  T818]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   42.141628][  T818]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   42.141630][  T818]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   42.141634][  T818]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   42.141636][  T818]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   42.141639][  T818]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   42.141640][  T818]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   42.141644][  T818]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   42.141646][  T818]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   42.141650][  T818]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   42.141653][  T818]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   42.141656][  T818]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   42.141662][  T818]  ? 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))
[   42.141664][  T818]  ? 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))
[   42.141668][  T818]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   42.141672][  T818]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   42.141674][  T818]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   42.141678][  T818]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   42.141682][  T818]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   42.141686][  T818]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   42.141688][  T818]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   42.141693][  T818]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   42.141696][  T818]  ____sys_sendmsg (net/socket.c:2713)
[   42.141698][  T818]  ? copy_msghdr_from_user (net/socket.c:2650)
[   42.141700][  T818]  ? sock_write_iter (net/socket.c:1269)
[   42.141702][  T818]  ? move_addr_to_kernel (net/socket.c:258)
[   42.141709][  T818]  ___sys_sendmsg (net/socket.c:2767)
[   42.141712][  T818]  ? copy_msghdr_from_user (net/socket.c:2619)
[   42.141729][  T818]  __sys_sendmsg (net/socket.c:2799)
[   42.141732][  T818]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   42.141738][  T818]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   42.141741][  T818]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   42.141744][  T818]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   42.141747][  T818]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   42.141749][  T818] RIP: 0033:0x7f613911254e
[   42.141753][  T818] 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
[   42.141755][  T818] RSP: 002b:00007ffd86058f00 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   42.141758][  T818] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007f613911254e
[   42.141759][  T818] RDX: 0000000000000000 RSI: 00007ffd86058fb0 RDI: 0000000000000005
[   42.141760][  T818] RBP: 00007ffd86058f10 R08: 0000000000000000 R09: 0000000000000000
[   42.141761][  T818] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a919955
[   42.141761][  T818] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffd86059670
| [   49.663613][  T920] softirqs last disabled at (47090): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   49.663616][  T920] Preemption disabled at:
| [   49.663616][  T920] vprintk_emit (kernel/printk/printk.c:2471)
| [   49.663624][  T920] Tainted: [W]=WARN
[   49.663625][  T920] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   49.663627][  T920] Call Trace:
[   49.663628][  T920]  <TASK>
[   49.663630][  T920]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   49.663635][  T920]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   49.663637][  T920]  __might_resched.cold (kernel/sched/core.c:9234)
[   49.663641][  T920]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   49.663645][  T920]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   49.663650][  T920]  __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))
[   49.663652][  T920]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   49.663658][  T920]  ? 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)
[   49.663661][  T920]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   49.663665][  T920]  put_chars (drivers/char/virtio_console.c:1176)
[   49.663667][  T920]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   49.663673][  T920]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   49.663680][  T920]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   49.663683][  T920]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   49.663688][  T920]  console_emit_next_record (kernel/printk/printk.c:3183)
[   49.663692][  T920]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   49.663694][  T920]  ? 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))
[   49.663697][  T920]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   49.663700][  T920]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   49.663703][  T920]  console_flush_one_record (kernel/printk/printk.c:3268)
[   49.663708][  T920]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   49.663709][  T920]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   49.663714][  T920]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   49.663719][  T920]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   49.663721][  T920]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   49.663723][  T920]  ? 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)
[   49.663727][  T920]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   49.663729][  T920]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   49.663731][  T920]  vprintk_emit (kernel/printk/printk.c:2479)
[   49.663734][  T920]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   49.663737][  T920]  ? _mutex_trylock_nest_lock (kernel/locking/mutex.c:1227 (discriminator 6))
[   49.663742][  T920]  _printk (kernel/printk/printk.c:2504)
[   49.663746][  T920]  ? snapshot_read.cold (user.c:?)
[   49.663748][  T920]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   49.663750][  T920]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   49.663753][  T920]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   49.663755][  T920]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   49.663759][  T920]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   49.663761][  T920]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   49.663763][  T920]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   49.663766][  T920]  ? netdev_notice (net/core/dev.c:13194)
[   49.663769][  T920]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   49.663772][  T920]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   49.663774][  T920]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   49.663778][  T920]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   49.663780][  T920]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   49.663782][  T920]  ? register_netdev (net/core/dev.c:11618)
[   49.663783][  T920]  ? 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))
[   49.663789][  T920]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   49.663791][  T920]  ? __kernel_text_address (kernel/extable.c:79)
[   49.663794][  T920]  ? write_profile (profile.c:?)
[   49.663798][  T920]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   49.663804][  T920]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   49.663807][  T920]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   49.663809][  T920]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   49.663810][  T920]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   49.663812][  T920]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   49.663816][  T920]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   49.663818][  T920]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   49.663819][  T920]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   49.663822][  T920]  ? kasan_save_stack (mm/kasan/common.c:58)
[   49.663824][  T920]  ? kasan_save_stack (mm/kasan/common.c:57)
[   49.663825][  T920]  ? kasan_save_track (mm/kasan/common.c:78)
[   49.663826][  T920]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   49.663828][  T920]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   49.663830][  T920]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   49.663833][  T920]  ? ___sys_sendmsg (net/socket.c:2758)
[   49.663837][  T920]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   49.663839][  T920]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   49.663841][  T920]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   49.663843][  T920]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   49.663845][  T920]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   49.663846][  T920]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   49.663847][  T920]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   49.663850][  T920]  ? __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)
[   49.663851][  T920]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   49.663853][  T920]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   49.663856][  T920]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   49.663857][  T920]  ? nla_get_range_signed (lib/nlattr.c:270)
[   49.663862][  T920]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   49.663864][  T920]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   49.663869][  T920]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   49.663875][  T920]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   49.663877][  T920]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   49.663881][  T920]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   49.663883][  T920]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   49.663885][  T920]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   49.663887][  T920]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   49.663890][  T920]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   49.663892][  T920]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   49.663895][  T920]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   49.663897][  T920]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   49.663901][  T920]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   49.663903][  T920]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   49.663906][  T920]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   49.663909][  T920]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   49.663912][  T920]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   49.663918][  T920]  ? 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))
[   49.663920][  T920]  ? 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))
[   49.663925][  T920]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   49.663929][  T920]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   49.663931][  T920]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   49.663935][  T920]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   49.663939][  T920]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   49.663943][  T920]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   49.663945][  T920]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   49.663950][  T920]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   49.663953][  T920]  ____sys_sendmsg (net/socket.c:2713)
[   49.663955][  T920]  ? copy_msghdr_from_user (net/socket.c:2650)
[   49.663957][  T920]  ? sock_write_iter (net/socket.c:1269)
[   49.663959][  T920]  ? move_addr_to_kernel (net/socket.c:258)
[   49.663966][  T920]  ___sys_sendmsg (net/socket.c:2767)
[   49.663969][  T920]  ? copy_msghdr_from_user (net/socket.c:2619)
[   49.663984][  T920]  __sys_sendmsg (net/socket.c:2799)
[   49.663987][  T920]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   49.663993][  T920]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   49.663996][  T920]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   49.663999][  T920]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   49.664002][  T920]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   49.664004][  T920] RIP: 0033:0x7fc10650b54e
[   49.664007][  T920] 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
[   49.664009][  T920] RSP: 002b:00007fffe5644860 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   49.664012][  T920] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fc10650b54e
[   49.664013][  T920] RDX: 0000000000000000 RSI: 00007fffe5644910 RDI: 0000000000000005
[   49.664014][  T920] RBP: 00007fffe5644870 R08: 0000000000000000 R09: 0000000000000000
[   49.664015][  T920] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91995d
[   49.664015][  T920] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fffe5644fd0
| [   57.180585][ T1030] softirqs last disabled at (48412): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   57.180587][ T1030] Preemption disabled at:
| [   57.180588][ T1030] vprintk_emit (kernel/printk/printk.c:2471)
| [   57.180596][ T1030] Tainted: [W]=WARN
[   57.180597][ T1030] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   57.180599][ T1030] Call Trace:
[   57.180600][ T1030]  <TASK>
[   57.180602][ T1030]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   57.180612][ T1030]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   57.180614][ T1030]  __might_resched.cold (kernel/sched/core.c:9234)
[   57.180619][ T1030]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   57.180623][ T1030]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   57.180627][ T1030]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   57.180629][ T1030]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   57.180635][ T1030]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   57.180638][ T1030]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   57.180642][ T1030]  put_chars (drivers/char/virtio_console.c:1176)
[   57.180644][ T1030]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   57.180650][ T1030]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   57.180658][ T1030]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   57.180661][ T1030]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   57.180665][ T1030]  console_emit_next_record (kernel/printk/printk.c:3183)
[   57.180669][ T1030]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   57.180671][ T1030]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   57.180674][ T1030]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   57.180676][ T1030]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   57.180680][ T1030]  console_flush_one_record (kernel/printk/printk.c:3268)
[   57.180684][ T1030]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   57.180686][ T1030]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   57.180691][ T1030]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   57.180694][ T1030]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   57.180696][ T1030]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   57.180697][ T1030]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   57.180701][ T1030]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   57.180703][ T1030]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   57.180705][ T1030]  vprintk_emit (kernel/printk/printk.c:2479)
[   57.180708][ T1030]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   57.180711][ T1030]  ? _mutex_trylock_nest_lock (kernel/locking/mutex.c:1227 (discriminator 6))
[   57.180716][ T1030]  _printk (kernel/printk/printk.c:2504)
[   57.180722][ T1030]  ? snapshot_read.cold (user.c:?)
[   57.180724][ T1030]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   57.180727][ T1030]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   57.180729][ T1030]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   57.180731][ T1030]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   57.180735][ T1030]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   57.180738][ T1030]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   57.180740][ T1030]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   57.180743][ T1030]  ? netdev_notice (net/core/dev.c:13194)
[   57.180746][ T1030]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   57.180749][ T1030]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   57.180751][ T1030]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   57.180755][ T1030]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   57.180757][ T1030]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   57.180759][ T1030]  ? register_netdev (net/core/dev.c:11618)
[   57.180760][ T1030]  ? is_bpf_text_address (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) kernel/bpf/core.c:751 (discriminator 2))
[   57.180765][ T1030]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   57.180767][ T1030]  ? __kernel_text_address (kernel/extable.c:79)
[   57.180770][ T1030]  ? write_profile (profile.c:?)
[   57.180774][ T1030]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   57.180780][ T1030]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   57.180783][ T1030]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   57.180785][ T1030]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   57.180786][ T1030]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   57.180788][ T1030]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   57.180791][ T1030]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   57.180793][ T1030]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   57.180795][ T1030]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   57.180797][ T1030]  ? kasan_save_stack (mm/kasan/common.c:58)
[   57.180799][ T1030]  ? kasan_save_stack (mm/kasan/common.c:57)
[   57.180801][ T1030]  ? kasan_save_track (mm/kasan/common.c:78)
[   57.180802][ T1030]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   57.180804][ T1030]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   57.180806][ T1030]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   57.180809][ T1030]  ? ___sys_sendmsg (net/socket.c:2758)
[   57.180813][ T1030]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   57.180815][ T1030]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   57.180817][ T1030]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   57.180819][ T1030]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   57.180820][ T1030]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   57.180821][ T1030]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   57.180823][ T1030]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   57.180825][ T1030]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   57.180827][ T1030]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   57.180829][ T1030]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   57.180832][ T1030]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   57.180833][ T1030]  ? nla_get_range_signed (lib/nlattr.c:270)
[   57.180838][ T1030]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   57.180840][ T1030]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   57.180845][ T1030]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   57.180850][ T1030]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   57.180852][ T1030]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   57.180857][ T1030]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   57.180859][ T1030]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   57.180860][ T1030]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   57.180862][ T1030]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   57.180866][ T1030]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   57.180868][ T1030]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   57.180871][ T1030]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   57.180872][ T1030]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   57.180876][ T1030]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   57.180878][ T1030]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   57.180882][ T1030]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   57.180885][ T1030]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   57.180888][ T1030]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   57.180894][ T1030]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   57.180896][ T1030]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   57.180900][ T1030]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   57.180904][ T1030]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   57.180907][ T1030]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   57.180911][ T1030]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   57.180914][ T1030]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   57.180918][ T1030]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   57.180920][ T1030]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   57.180925][ T1030]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   57.180927][ T1030]  ____sys_sendmsg (net/socket.c:2713)
[   57.180930][ T1030]  ? copy_msghdr_from_user (net/socket.c:2650)
[   57.180932][ T1030]  ? sock_write_iter (net/socket.c:1269)
[   57.180933][ T1030]  ? move_addr_to_kernel (net/socket.c:258)
[   57.180941][ T1030]  ___sys_sendmsg (net/socket.c:2767)
[   57.180943][ T1030]  ? copy_msghdr_from_user (net/socket.c:2619)
[   57.180959][ T1030]  __sys_sendmsg (net/socket.c:2799)
[   57.180961][ T1030]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   57.180968][ T1030]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   57.180970][ T1030]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   57.180974][ T1030]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   57.180976][ T1030]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   57.180978][ T1030] RIP: 0033:0x7fae59a9d54e
[   57.180982][ T1030] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   57.180984][ T1030] RSP: 002b:00007ffeb8303ed0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   57.180987][ T1030] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fae59a9d54e
[   57.180988][ T1030] RDX: 0000000000000000 RSI: 00007ffeb8303f80 RDI: 0000000000000005
[   57.180989][ T1030] RBP: 00007ffeb8303ee0 R08: 0000000000000000 R09: 0000000000000000
[   57.180990][ T1030] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a919964
[   57.180990][ T1030] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffeb8304640
| [   62.973479][ T1092] softirqs last disabled at (41726): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   62.973482][ T1092] Preemption disabled at:
| [   62.973483][ T1092] vprintk_emit (kernel/printk/printk.c:2471)
| [   62.973491][ T1092] Tainted: [W]=WARN
[   62.973492][ T1092] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   62.973494][ T1092] Call Trace:
[   62.973496][ T1092]  <TASK>
[   62.973497][ T1092]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   62.973503][ T1092]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   62.973504][ T1092]  __might_resched.cold (kernel/sched/core.c:9234)
[   62.973509][ T1092]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   62.973513][ T1092]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   62.973517][ T1092]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   62.973519][ T1092]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   62.973526][ T1092]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   62.973528][ T1092]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   62.973532][ T1092]  put_chars (drivers/char/virtio_console.c:1176)
[   62.973534][ T1092]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   62.973541][ T1092]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   62.973548][ T1092]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   62.973551][ T1092]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   62.973556][ T1092]  console_emit_next_record (kernel/printk/printk.c:3183)
[   62.973560][ T1092]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   62.973562][ T1092]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   62.973565][ T1092]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   62.973568][ T1092]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   62.973572][ T1092]  console_flush_one_record (kernel/printk/printk.c:3268)
[   62.973576][ T1092]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   62.973578][ T1092]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   62.973583][ T1092]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   62.973586][ T1092]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   62.973588][ T1092]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   62.973589][ T1092]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   62.973593][ T1092]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   62.973595][ T1092]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   62.973598][ T1092]  vprintk_emit (kernel/printk/printk.c:2479)
[   62.973601][ T1092]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   62.973603][ T1092]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   62.973604][ T1092]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   62.973606][ T1092]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   62.973610][ T1092]  _printk (kernel/printk/printk.c:2504)
[   62.973614][ T1092]  ? snapshot_read.cold (user.c:?)
[   62.973616][ T1092]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   62.973618][ T1092]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   62.973621][ T1092]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   62.973623][ T1092]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   62.973626][ T1092]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   62.973629][ T1092]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   62.973636][ T1092]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   62.973639][ T1092]  ? netdev_notice (net/core/dev.c:13194)
[   62.973642][ T1092]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   62.973645][ T1092]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   62.973647][ T1092]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   62.973651][ T1092]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   62.973653][ T1092]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   62.973656][ T1092]  ? netif_set_mtu_ext (net/core/dev.c:2350 net/core/dev.c:9952)
[   62.973659][ T1092]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   62.973663][ T1092]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   62.973669][ T1092]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   62.973673][ T1092]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   62.973676][ T1092]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   62.973677][ T1092]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   62.973679][ T1092]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   62.973682][ T1092]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   62.973684][ T1092]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   62.973686][ T1092]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   62.973688][ T1092]  ? kasan_save_stack (mm/kasan/common.c:58)
[   62.973690][ T1092]  ? kasan_save_stack (mm/kasan/common.c:57)
[   62.973691][ T1092]  ? kasan_save_track (mm/kasan/common.c:78)
[   62.973693][ T1092]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   62.973695][ T1092]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   62.973697][ T1092]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   62.973700][ T1092]  ? ___sys_sendmsg (net/socket.c:2758)
[   62.973703][ T1092]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   62.973705][ T1092]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   62.973708][ T1092]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   62.973710][ T1092]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   62.973711][ T1092]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   62.973712][ T1092]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   62.973714][ T1092]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   62.973716][ T1092]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   62.973721][ T1092]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   62.973723][ T1092]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   62.973726][ T1092]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   62.973727][ T1092]  ? nla_get_range_signed (lib/nlattr.c:270)
[   62.973732][ T1092]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   62.973735][ T1092]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   62.973740][ T1092]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   62.973745][ T1092]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   62.973747][ T1092]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   62.973751][ T1092]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   62.973753][ T1092]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   62.973755][ T1092]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   62.973756][ T1092]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   62.973760][ T1092]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   62.973762][ T1092]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   62.973765][ T1092]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   62.973767][ T1092]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   62.973771][ T1092]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   62.973773][ T1092]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   62.973776][ T1092]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   62.973779][ T1092]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   62.973782][ T1092]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   62.973789][ T1092]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   62.973790][ T1092]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   62.973795][ T1092]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   62.973799][ T1092]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   62.973801][ T1092]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   62.973805][ T1092]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   62.973809][ T1092]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   62.973813][ T1092]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   62.973815][ T1092]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   62.973820][ T1092]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   62.973823][ T1092]  ____sys_sendmsg (net/socket.c:2713)
[   62.973825][ T1092]  ? copy_msghdr_from_user (net/socket.c:2650)
[   62.973827][ T1092]  ? sock_write_iter (net/socket.c:1269)
[   62.973829][ T1092]  ? move_addr_to_kernel (net/socket.c:258)
[   62.973836][ T1092]  ___sys_sendmsg (net/socket.c:2767)
[   62.973839][ T1092]  ? copy_msghdr_from_user (net/socket.c:2619)
[   62.973854][ T1092]  __sys_sendmsg (net/socket.c:2799)
[   62.973857][ T1092]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   62.973863][ T1092]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   62.973866][ T1092]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   62.973869][ T1092]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   62.973872][ T1092]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   62.973874][ T1092] RIP: 0033:0x7f8263bd354e
[   62.973878][ T1092] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   62.973880][ T1092] RSP: 002b:00007ffd6db926b0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   62.973882][ T1092] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007f8263bd354e
[   62.973884][ T1092] RDX: 0000000000000000 RSI: 00007ffd6db92760 RDI: 0000000000000005
[   62.973885][ T1092] RBP: 00007ffd6db926c0 R08: 0000000000000000 R09: 0000000000000000
[   62.973885][ T1092] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91996a
[   62.973886][ T1092] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffd6db92e20
| [   64.098316][ T1141] softirqs last disabled at (33648): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   64.098319][ T1141] Preemption disabled at:
| [   64.098319][ T1141] vprintk_emit (kernel/printk/printk.c:2471)
| [   64.098327][ T1141] Tainted: [W]=WARN
[   64.098328][ T1141] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   64.098330][ T1141] Call Trace:
[   64.098331][ T1141]  <TASK>
[   64.098333][ T1141]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   64.098339][ T1141]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   64.098340][ T1141]  __might_resched.cold (kernel/sched/core.c:9234)
[   64.098345][ T1141]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   64.098349][ T1141]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   64.098353][ T1141]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   64.098355][ T1141]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   64.098361][ T1141]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   64.098364][ T1141]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   64.098368][ T1141]  put_chars (drivers/char/virtio_console.c:1176)
[   64.098370][ T1141]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   64.098376][ T1141]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   64.098384][ T1141]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   64.098387][ T1141]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   64.098392][ T1141]  console_emit_next_record (kernel/printk/printk.c:3183)
[   64.098396][ T1141]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   64.098398][ T1141]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   64.098401][ T1141]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   64.098404][ T1141]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   64.098407][ T1141]  console_flush_one_record (kernel/printk/printk.c:3268)
[   64.098412][ T1141]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   64.098414][ T1141]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   64.098419][ T1141]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   64.098422][ T1141]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   64.098424][ T1141]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   64.098425][ T1141]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   64.098429][ T1141]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   64.098431][ T1141]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   64.098433][ T1141]  vprintk_emit (kernel/printk/printk.c:2479)
[   64.098437][ T1141]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   64.098439][ T1141]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   64.098440][ T1141]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   64.098442][ T1141]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   64.098446][ T1141]  _printk (kernel/printk/printk.c:2504)
[   64.098450][ T1141]  ? snapshot_read.cold (user.c:?)
[   64.098451][ T1141]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   64.098454][ T1141]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   64.098457][ T1141]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   64.098459][ T1141]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   64.098463][ T1141]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   64.098465][ T1141]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   64.098468][ T1141]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   64.098471][ T1141]  ? netdev_notice (net/core/dev.c:13194)
[   64.098473][ T1141]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   64.098476][ T1141]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   64.098479][ T1141]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   64.098482][ T1141]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   64.098484][ T1141]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   64.098487][ T1141]  ? netif_set_mtu_ext (net/core/dev.c:2350 net/core/dev.c:9952)
[   64.098491][ T1141]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   64.098495][ T1141]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   64.098501][ T1141]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   64.098505][ T1141]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   64.098508][ T1141]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   64.098509][ T1141]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   64.098511][ T1141]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   64.098515][ T1141]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   64.098517][ T1141]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   64.098518][ T1141]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   64.098521][ T1141]  ? kasan_save_stack (mm/kasan/common.c:58)
[   64.098523][ T1141]  ? kasan_save_stack (mm/kasan/common.c:57)
[   64.098524][ T1141]  ? kasan_save_track (mm/kasan/common.c:78)
[   64.098525][ T1141]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   64.098527][ T1141]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   64.098529][ T1141]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   64.098532][ T1141]  ? ___sys_sendmsg (net/socket.c:2758)
[   64.098536][ T1141]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   64.098538][ T1141]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   64.098540][ T1141]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   64.098542][ T1141]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   64.098543][ T1141]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   64.098545][ T1141]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   64.098546][ T1141]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   64.098548][ T1141]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   64.098551][ T1141]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   64.098553][ T1141]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   64.098557][ T1141]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   64.098558][ T1141]  ? nla_get_range_signed (lib/nlattr.c:270)
[   64.098563][ T1141]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   64.098565][ T1141]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   64.098570][ T1141]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   64.098576][ T1141]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   64.098577][ T1141]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   64.098582][ T1141]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   64.098584][ T1141]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   64.098586][ T1141]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   64.098587][ T1141]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   64.098591][ T1141]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   64.098593][ T1141]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   64.098597][ T1141]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   64.098598][ T1141]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   64.098602][ T1141]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   64.098604][ T1141]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   64.098608][ T1141]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   64.098611][ T1141]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   64.098614][ T1141]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   64.098620][ T1141]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   64.098622][ T1141]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   64.098627][ T1141]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   64.098631][ T1141]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   64.098633][ T1141]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   64.098642][ T1141]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   64.098646][ T1141]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   64.098650][ T1141]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   64.098651][ T1141]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   64.098657][ T1141]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   64.098660][ T1141]  ____sys_sendmsg (net/socket.c:2713)
[   64.098662][ T1141]  ? copy_msghdr_from_user (net/socket.c:2650)
[   64.098664][ T1141]  ? sock_write_iter (net/socket.c:1269)
[   64.098666][ T1141]  ? move_addr_to_kernel (net/socket.c:258)
[   64.098673][ T1141]  ___sys_sendmsg (net/socket.c:2767)
[   64.098676][ T1141]  ? copy_msghdr_from_user (net/socket.c:2619)
[   64.098691][ T1141]  __sys_sendmsg (net/socket.c:2799)
[   64.098694][ T1141]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   64.098700][ T1141]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   64.098703][ T1141]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   64.098706][ T1141]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   64.098709][ T1141]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   64.098711][ T1141] RIP: 0033:0x7fdaac54954e
[   64.098714][ T1141] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   64.098716][ T1141] RSP: 002b:00007ffed04a2770 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   64.098721][ T1141] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007fdaac54954e
[   64.098722][ T1141] RDX: 0000000000000000 RSI: 00007ffed04a2820 RDI: 0000000000000005
[   64.098723][ T1141] RBP: 00007ffed04a2780 R08: 0000000000000000 R09: 0000000000000000
[   64.098724][ T1141] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91996b
[   64.098724][ T1141] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffed04a2ee0
| [   65.201130][ T1190] softirqs last disabled at (39362): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   65.201132][ T1190] Preemption disabled at:
| [   65.201133][ T1190] vprintk_emit (kernel/printk/printk.c:2471)
| [   65.201141][ T1190] Tainted: [W]=WARN
[   65.201142][ T1190] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   65.201144][ T1190] Call Trace:
[   65.201146][ T1190]  <TASK>
[   65.201147][ T1190]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   65.201153][ T1190]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   65.201155][ T1190]  __might_resched.cold (kernel/sched/core.c:9234)
[   65.201159][ T1190]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   65.201163][ T1190]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   65.201168][ T1190]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   65.201170][ T1190]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   65.201176][ T1190]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   65.201178][ T1190]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   65.201182][ T1190]  put_chars (drivers/char/virtio_console.c:1176)
[   65.201184][ T1190]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   65.201191][ T1190]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   65.201198][ T1190]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   65.201201][ T1190]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   65.201206][ T1190]  console_emit_next_record (kernel/printk/printk.c:3183)
[   65.201210][ T1190]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   65.201212][ T1190]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   65.201215][ T1190]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   65.201218][ T1190]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   65.201221][ T1190]  console_flush_one_record (kernel/printk/printk.c:3268)
[   65.201226][ T1190]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   65.201227][ T1190]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   65.201233][ T1190]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   65.201236][ T1190]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   65.201237][ T1190]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   65.201239][ T1190]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   65.201243][ T1190]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   65.201244][ T1190]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   65.201247][ T1190]  vprintk_emit (kernel/printk/printk.c:2479)
[   65.201250][ T1190]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   65.201252][ T1190]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   65.201254][ T1190]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   65.201256][ T1190]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   65.201260][ T1190]  _printk (kernel/printk/printk.c:2504)
[   65.201263][ T1190]  ? snapshot_read.cold (user.c:?)
[   65.201265][ T1190]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   65.201268][ T1190]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   65.201271][ T1190]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   65.201273][ T1190]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   65.201276][ T1190]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   65.201279][ T1190]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   65.201281][ T1190]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   65.201284][ T1190]  ? netdev_notice (net/core/dev.c:13194)
[   65.201287][ T1190]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   65.201289][ T1190]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   65.201292][ T1190]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   65.201295][ T1190]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   65.201297][ T1190]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   65.201300][ T1190]  ? netif_set_mtu_ext (net/core/dev.c:2350 net/core/dev.c:9952)
[   65.201304][ T1190]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   65.201308][ T1190]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   65.201314][ T1190]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   65.201317][ T1190]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   65.201321][ T1190]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   65.201322][ T1190]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   65.201324][ T1190]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   65.201327][ T1190]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   65.201329][ T1190]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   65.201331][ T1190]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   65.201333][ T1190]  ? kasan_save_stack (mm/kasan/common.c:58)
[   65.201335][ T1190]  ? kasan_save_stack (mm/kasan/common.c:57)
[   65.201336][ T1190]  ? kasan_save_track (mm/kasan/common.c:78)
[   65.201338][ T1190]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   65.201340][ T1190]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   65.201342][ T1190]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   65.201345][ T1190]  ? ___sys_sendmsg (net/socket.c:2758)
[   65.201348][ T1190]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   65.201350][ T1190]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   65.201353][ T1190]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   65.201354][ T1190]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   65.201356][ T1190]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   65.201357][ T1190]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   65.201359][ T1190]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   65.201361][ T1190]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   65.201364][ T1190]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   65.201366][ T1190]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   65.201369][ T1190]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   65.201370][ T1190]  ? nla_get_range_signed (lib/nlattr.c:270)
[   65.201375][ T1190]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   65.201377][ T1190]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   65.201382][ T1190]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   65.201387][ T1190]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   65.201389][ T1190]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   65.201394][ T1190]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   65.201395][ T1190]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   65.201397][ T1190]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   65.201399][ T1190]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   65.201403][ T1190]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   65.201405][ T1190]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   65.201408][ T1190]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   65.201409][ T1190]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   65.201414][ T1190]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   65.201415][ T1190]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   65.201419][ T1190]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   65.201422][ T1190]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   65.201425][ T1190]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   65.201431][ T1190]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   65.201433][ T1190]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   65.201438][ T1190]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   65.201441][ T1190]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   65.201444][ T1190]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   65.201448][ T1190]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   65.201452][ T1190]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   65.201456][ T1190]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   65.201457][ T1190]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   65.201463][ T1190]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   65.201465][ T1190]  ____sys_sendmsg (net/socket.c:2713)
[   65.201467][ T1190]  ? copy_msghdr_from_user (net/socket.c:2650)
[   65.201470][ T1190]  ? sock_write_iter (net/socket.c:1269)
[   65.201471][ T1190]  ? move_addr_to_kernel (net/socket.c:258)
[   65.201478][ T1190]  ___sys_sendmsg (net/socket.c:2767)
[   65.201481][ T1190]  ? copy_msghdr_from_user (net/socket.c:2619)
[   65.201497][ T1190]  __sys_sendmsg (net/socket.c:2799)
[   65.201500][ T1190]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   65.201506][ T1190]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   65.201509][ T1190]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   65.201512][ T1190]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   65.201514][ T1190]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   65.201516][ T1190] RIP: 0033:0x7f3fd5aeb54e
[   65.201520][ T1190] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   65.201522][ T1190] RSP: 002b:00007fff563a7540 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   65.201524][ T1190] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007f3fd5aeb54e
[   65.201526][ T1190] RDX: 0000000000000000 RSI: 00007fff563a75f0 RDI: 0000000000000005
[   65.201526][ T1190] RBP: 00007fff563a7550 R08: 0000000000000000 R09: 0000000000000000
[   65.201527][ T1190] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91996c
[   65.201528][ T1190] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fff563a7cb0
| [   66.326535][ T1239] softirqs last disabled at (38446): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   66.326538][ T1239] Preemption disabled at:
| [   66.326538][ T1239] vprintk_emit (kernel/printk/printk.c:2471)
| [   66.326547][ T1239] Tainted: [W]=WARN
[   66.326548][ T1239] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   66.326549][ T1239] Call Trace:
[   66.326551][ T1239]  <TASK>
[   66.326552][ T1239]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   66.326558][ T1239]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   66.326560][ T1239]  __might_resched.cold (kernel/sched/core.c:9234)
[   66.326564][ T1239]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   66.326568][ T1239]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   66.326572][ T1239]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   66.326574][ T1239]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   66.326581][ T1239]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   66.326583][ T1239]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   66.326587][ T1239]  put_chars (drivers/char/virtio_console.c:1176)
[   66.326589][ T1239]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   66.326596][ T1239]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   66.326603][ T1239]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   66.326606][ T1239]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   66.326611][ T1239]  console_emit_next_record (kernel/printk/printk.c:3183)
[   66.326615][ T1239]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   66.326616][ T1239]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   66.326620][ T1239]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   66.326622][ T1239]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   66.326626][ T1239]  console_flush_one_record (kernel/printk/printk.c:3268)
[   66.326630][ T1239]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   66.326632][ T1239]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   66.326638][ T1239]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   66.326640][ T1239]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   66.326642][ T1239]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   66.326644][ T1239]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   66.326653][ T1239]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   66.326655][ T1239]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   66.326658][ T1239]  vprintk_emit (kernel/printk/printk.c:2479)
[   66.326661][ T1239]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   66.326663][ T1239]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   66.326665][ T1239]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   66.326667][ T1239]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   66.326671][ T1239]  _printk (kernel/printk/printk.c:2504)
[   66.326675][ T1239]  ? snapshot_read.cold (user.c:?)
[   66.326676][ T1239]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   66.326679][ T1239]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   66.326682][ T1239]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   66.326684][ T1239]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   66.326688][ T1239]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   66.326690][ T1239]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   66.326693][ T1239]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   66.326696][ T1239]  ? netdev_notice (net/core/dev.c:13194)
[   66.326698][ T1239]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   66.326701][ T1239]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   66.326705][ T1239]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   66.326711][ T1239]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   66.326714][ T1239]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   66.326716][ T1239]  ? netif_set_mtu_ext (net/core/dev.c:2350 net/core/dev.c:9952)
[   66.326722][ T1239]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   66.326727][ T1239]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   66.326732][ T1239]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   66.326736][ T1239]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   66.326740][ T1239]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   66.326741][ T1239]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   66.326743][ T1239]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   66.326746][ T1239]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   66.326748][ T1239]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   66.326750][ T1239]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   66.326752][ T1239]  ? kasan_save_stack (mm/kasan/common.c:58)
[   66.326754][ T1239]  ? kasan_save_stack (mm/kasan/common.c:57)
[   66.326755][ T1239]  ? kasan_save_track (mm/kasan/common.c:78)
[   66.326757][ T1239]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   66.326759][ T1239]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   66.326761][ T1239]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   66.326764][ T1239]  ? ___sys_sendmsg (net/socket.c:2758)
[   66.326767][ T1239]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   66.326769][ T1239]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   66.326772][ T1239]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   66.326773][ T1239]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   66.326775][ T1239]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   66.326776][ T1239]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   66.326777][ T1239]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   66.326780][ T1239]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   66.326782][ T1239]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   66.326784][ T1239]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   66.326788][ T1239]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   66.326789][ T1239]  ? nla_get_range_signed (lib/nlattr.c:270)
[   66.326793][ T1239]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   66.326795][ T1239]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   66.326800][ T1239]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   66.326806][ T1239]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   66.326807][ T1239]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   66.326812][ T1239]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   66.326814][ T1239]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   66.326815][ T1239]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   66.326817][ T1239]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   66.326821][ T1239]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   66.326823][ T1239]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   66.326826][ T1239]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   66.326827][ T1239]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   66.326832][ T1239]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   66.326833][ T1239]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   66.326837][ T1239]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   66.326840][ T1239]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   66.326843][ T1239]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   66.326849][ T1239]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   66.326851][ T1239]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   66.326857][ T1239]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   66.326863][ T1239]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   66.326866][ T1239]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   66.326870][ T1239]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   66.326874][ T1239]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   66.326878][ T1239]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   66.326879][ T1239]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   66.326884][ T1239]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   66.326887][ T1239]  ____sys_sendmsg (net/socket.c:2713)
[   66.326889][ T1239]  ? copy_msghdr_from_user (net/socket.c:2650)
[   66.326892][ T1239]  ? sock_write_iter (net/socket.c:1269)
[   66.326893][ T1239]  ? move_addr_to_kernel (net/socket.c:258)
[   66.326900][ T1239]  ___sys_sendmsg (net/socket.c:2767)
[   66.326903][ T1239]  ? copy_msghdr_from_user (net/socket.c:2619)
[   66.326918][ T1239]  __sys_sendmsg (net/socket.c:2799)
[   66.326921][ T1239]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   66.326927][ T1239]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   66.326930][ T1239]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   66.326933][ T1239]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   66.326936][ T1239]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   66.326938][ T1239] RIP: 0033:0x7fb2ae12754e
[   66.326942][ T1239] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   66.326943][ T1239] RSP: 002b:00007fffe4cb2f20 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   66.326946][ T1239] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007fb2ae12754e
[   66.326947][ T1239] RDX: 0000000000000000 RSI: 00007fffe4cb2fd0 RDI: 0000000000000005
[   66.326948][ T1239] RBP: 00007fffe4cb2f30 R08: 0000000000000000 R09: 0000000000000000
[   66.326949][ T1239] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91996d


Finger prints:
__irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print
br_device_event:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print
__alloc_skb:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars
netif_change_name:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars