======================================
| [   10.396863][  T201] softirqs last disabled at (24182): netlink_release (./include/net/sock.h:2138 net/netlink/af_netlink.c:727)
| [   10.396865][  T201] Preemption disabled at:
| [   10.396866][  T201] 0x0
| [   10.396876][  T201] Tainted: [W]=WARN
[   10.396877][  T201] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.396878][  T201] Call Trace:
[   10.396880][  T201]  <TASK>
[   10.396881][  T201]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   10.396888][  T201]  __might_resched.cold (kernel/sched/core.c:9234)
[   10.396892][  T201]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   10.396897][  T201]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   10.396901][  T201]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   10.396903][  T201]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.396909][  T201]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   10.396912][  T201]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.396916][  T201]  put_chars (drivers/char/virtio_console.c:1176)
[   10.396918][  T201]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   10.396919][  T201]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   10.396923][  T201]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   10.396928][  T201]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   10.396936][  T201]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   10.396939][  T201]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.396941][  T201]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.396945][  T201]  console_emit_next_record (kernel/printk/printk.c:3183)
[   10.396948][  T201]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   10.396950][  T201]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   10.396954][  T201]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.396955][  T201]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.396959][  T201]  console_flush_one_record (kernel/printk/printk.c:3268)
[   10.396963][  T201]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   10.396965][  T201]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.396970][  T201]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   10.396973][  T201]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   10.396975][  T201]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.396977][  T201]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   10.396980][  T201]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   10.396982][  T201]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   10.396985][  T201]  vprintk_emit (kernel/printk/printk.c:2479)
[   10.396988][  T201]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   10.396991][  T201]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.396994][  T201]  _printk (kernel/printk/printk.c:2504)
[   10.396998][  T201]  ? snapshot_read.cold (user.c:?)
[   10.397001][  T201]  ? do_raw_spin_lock (./include/linux/instrumented.h:55 ./include/linux/atomic/atomic-instrumented.h:1301 ./include/asm-generic/qspinlock.h:112 kernel/locking/spinlock_debug.c:116)
[   10.397003][  T201]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   10.397007][  T201]  ? do_raw_spin_lock (./include/linux/instrumented.h:55 ./include/linux/atomic/atomic-instrumented.h:1301 ./include/asm-generic/qspinlock.h:112 kernel/locking/spinlock_debug.c:116)
[   10.397010][  T201]  do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4))
[   10.397014][  T201]  ? exit_notify (kernel/exit.c:780)
[   10.397015][  T201]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   10.397018][  T201]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.397021][  T201]  do_group_exit (kernel/exit.c:1151)
[   10.397024][  T201]  __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160)
[   10.397026][  T201]  x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232)
[   10.397029][  T201]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   10.397032][  T201]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   10.397035][  T201]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   10.397038][  T201] RIP: 0033:0x7ff3a93541b8
[   10.397040][  T201] Code: Unable to access opcode bytes at 0x7ff3a935418e.

Code starting with the faulting instruction
===========================================
[   10.397041][  T201] RSP: 002b:00007ffc18eeaed8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
[   10.397043][  T201] RAX: ffffffffffffffda RBX: 00007ff3a9484f88 RCX: 00007ff3a93541b8
[   10.397044][  T201] RDX: 00007ff3a909efc8 RSI: fffffffffffffeb8 RDI: 0000000000000000
[   10.397045][  T201] RBP: 00007ffc18eeaf30 R08: 0000000000000000 R09: 0000000000000050
[   10.397046][  T201] R10: 00007ffc18eeacf0 R11: 0000000000000246 R12: 0000000000000001
[   10.397047][  T201] R13: 0000000000000000 R14: 00007ff3a9483680 R15: 00007ff3a9484fa0
| [   12.871662][  T258] softirqs last disabled at (47572): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   12.871665][  T258] Preemption disabled at:
| [   12.871666][  T258] vprintk_emit (kernel/printk/printk.c:2471)
| [   12.871674][  T258] Tainted: [W]=WARN
[   12.871675][  T258] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.871677][  T258] Call Trace:
[   12.871678][  T258]  <TASK>
[   12.871680][  T258]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   12.871686][  T258]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   12.871688][  T258]  __might_resched.cold (kernel/sched/core.c:9234)
[   12.871692][  T258]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   12.871696][  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)
[   12.871701][  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))
[   12.871703][  T258]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   12.871709][  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)
[   12.871712][  T258]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   12.871715][  T258]  put_chars (drivers/char/virtio_console.c:1176)
[   12.871718][  T258]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   12.871724][  T258]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   12.871732][  T258]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   12.871735][  T258]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.871739][  T258]  console_emit_next_record (kernel/printk/printk.c:3183)
[   12.871743][  T258]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   12.871745][  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))
[   12.871748][  T258]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.871751][  T258]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.871755][  T258]  console_flush_one_record (kernel/printk/printk.c:3268)
[   12.871759][  T258]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   12.871761][  T258]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.871766][  T258]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   12.871769][  T258]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   12.871777][  T258]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.871778][  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)
[   12.871782][  T258]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   12.871784][  T258]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   12.871787][  T258]  vprintk_emit (kernel/printk/printk.c:2479)
[   12.871789][  T258]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   12.871792][  T258]  ? save_trace (kernel/locking/lockdep.c:589)
[   12.871796][  T258]  _printk (kernel/printk/printk.c:2504)
[   12.871799][  T258]  ? snapshot_read.cold (user.c:?)
[   12.871803][  T258]  ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928)
[   12.871805][  T258]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   12.871809][  T258]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   12.871811][  T258]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   12.871814][  T258]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   12.871816][  T258]  ? netdev_notice (net/core/dev.c:13194)
[   12.871819][  T258]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   12.871822][  T258]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   12.871824][  T258]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   12.871828][  T258]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   12.871830][  T258]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   12.871832][  T258]  ? register_netdev (net/core/dev.c:11618)
[   12.871833][  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))
[   12.871838][  T258]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   12.871841][  T258]  ? __kernel_text_address (kernel/extable.c:79)
[   12.871843][  T258]  ? write_profile (profile.c:?)
[   12.871847][  T258]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   12.871853][  T258]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   12.871856][  T258]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   12.871858][  T258]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   12.871860][  T258]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   12.871862][  T258]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   12.871866][  T258]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   12.871868][  T258]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   12.871870][  T258]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   12.871872][  T258]  ? kasan_save_stack (mm/kasan/common.c:58)
[   12.871874][  T258]  ? kasan_save_stack (mm/kasan/common.c:57)
[   12.871875][  T258]  ? kasan_save_track (mm/kasan/common.c:78)
[   12.871877][  T258]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   12.871879][  T258]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.871881][  T258]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   12.871884][  T258]  ? ___sys_sendmsg (net/socket.c:2758)
[   12.871887][  T258]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   12.871889][  T258]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   12.871892][  T258]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.871893][  T258]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.871895][  T258]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.871896][  T258]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.871898][  T258]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   12.871900][  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)
[   12.871903][  T258]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   12.871904][  T258]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   12.871908][  T258]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   12.871909][  T258]  ? nla_get_range_signed (lib/nlattr.c:270)
[   12.871914][  T258]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.871916][  T258]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   12.871921][  T258]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   12.871926][  T258]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   12.871928][  T258]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.871933][  T258]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   12.871935][  T258]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   12.871936][  T258]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   12.871938][  T258]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   12.871942][  T258]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   12.871944][  T258]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   12.871947][  T258]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   12.871948][  T258]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.871953][  T258]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   12.871954][  T258]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   12.871958][  T258]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   12.871961][  T258]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   12.871964][  T258]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   12.871970][  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))
[   12.871972][  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))
[   12.871976][  T258]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   12.871980][  T258]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   12.871983][  T258]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   12.871987][  T258]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   12.871991][  T258]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   12.871995][  T258]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   12.871997][  T258]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   12.872002][  T258]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   12.872005][  T258]  ____sys_sendmsg (net/socket.c:2713)
[   12.872007][  T258]  ? copy_msghdr_from_user (net/socket.c:2650)
[   12.872009][  T258]  ? sock_write_iter (net/socket.c:1269)
[   12.872011][  T258]  ? move_addr_to_kernel (net/socket.c:258)
[   12.872018][  T258]  ___sys_sendmsg (net/socket.c:2767)
[   12.872021][  T258]  ? copy_msghdr_from_user (net/socket.c:2619)
[   12.872036][  T258]  __sys_sendmsg (net/socket.c:2799)
[   12.872039][  T258]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   12.872045][  T258]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.872048][  T258]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   12.872051][  T258]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   12.872054][  T258]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   12.872056][  T258] RIP: 0033:0x7f697cb2654e
[   12.872060][  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
[   12.872062][  T258] RSP: 002b:00007ffc4b9445f0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   12.872064][  T258] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007f697cb2654e
[   12.872066][  T258] RDX: 0000000000000000 RSI: 00007ffc4b9446a0 RDI: 0000000000000005
[   12.872067][  T258] RBP: 00007ffc4b944600 R08: 0000000000000000 R09: 0000000000000000
[   12.872067][  T258] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a918541
[   12.872068][  T258] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffc4b944d60
| [   13.919606][  T276] softirqs last disabled at (46834): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   13.919609][  T276] Preemption disabled at:
| [   13.919610][  T276] vprintk_emit (kernel/printk/printk.c:2471)
| [   13.919618][  T276] Tainted: [W]=WARN
[   13.919619][  T276] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.919620][  T276] Call Trace:
[   13.919622][  T276]  <TASK>
[   13.919623][  T276]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   13.919630][  T276]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   13.919631][  T276]  __might_resched.cold (kernel/sched/core.c:9234)
[   13.919636][  T276]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   13.919640][  T276]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   13.919645][  T276]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   13.919647][  T276]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   13.919653][  T276]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   13.919656][  T276]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   13.919660][  T276]  put_chars (drivers/char/virtio_console.c:1176)
[   13.919662][  T276]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   13.919669][  T276]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   13.919677][  T276]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   13.919681][  T276]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   13.919685][  T276]  console_emit_next_record (kernel/printk/printk.c:3183)
[   13.919690][  T276]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   13.919691][  T276]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   13.919695][  T276]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.919698][  T276]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   13.919702][  T276]  console_flush_one_record (kernel/printk/printk.c:3268)
[   13.919706][  T276]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   13.919708][  T276]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.919714][  T276]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   13.919717][  T276]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   13.919719][  T276]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.919720][  T276]  ? 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)
[   13.919724][  T276]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   13.919726][  T276]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   13.919729][  T276]  vprintk_emit (kernel/printk/printk.c:2479)
[   13.919732][  T276]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   13.919735][  T276]  ? _mutex_trylock_nest_lock (kernel/locking/mutex.c:1227 (discriminator 6))
[   13.919740][  T276]  _printk (kernel/printk/printk.c:2504)
[   13.919744][  T276]  ? snapshot_read.cold (user.c:?)
[   13.919745][  T276]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   13.919748][  T276]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   13.919751][  T276]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   13.919753][  T276]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   13.919757][  T276]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   13.919760][  T276]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   13.919763][  T276]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   13.919766][  T276]  ? netdev_notice (net/core/dev.c:13194)
[   13.919768][  T276]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   13.919772][  T276]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   13.919780][  T276]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   13.919784][  T276]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   13.919786][  T276]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   13.919788][  T276]  ? register_netdev (net/core/dev.c:11618)
[   13.919789][  T276]  ? 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))
[   13.919795][  T276]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   13.919798][  T276]  ? __kernel_text_address (kernel/extable.c:79)
[   13.919800][  T276]  ? write_profile (profile.c:?)
[   13.919805][  T276]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   13.919811][  T276]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   13.919814][  T276]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   13.919816][  T276]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   13.919818][  T276]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   13.919820][  T276]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   13.919823][  T276]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   13.919825][  T276]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   13.919827][  T276]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   13.919829][  T276]  ? kasan_save_stack (mm/kasan/common.c:58)
[   13.919831][  T276]  ? kasan_save_stack (mm/kasan/common.c:57)
[   13.919832][  T276]  ? kasan_save_track (mm/kasan/common.c:78)
[   13.919834][  T276]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   13.919836][  T276]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.919838][  T276]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   13.919841][  T276]  ? ___sys_sendmsg (net/socket.c:2758)
[   13.919845][  T276]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   13.919847][  T276]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   13.919850][  T276]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.919852][  T276]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   13.919853][  T276]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.919854][  T276]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.919856][  T276]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   13.919858][  T276]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   13.919860][  T276]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   13.919862][  T276]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   13.919865][  T276]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   13.919867][  T276]  ? nla_get_range_signed (lib/nlattr.c:270)
[   13.919871][  T276]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.919874][  T276]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   13.919879][  T276]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   13.919885][  T276]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   13.919887][  T276]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.919892][  T276]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   13.919894][  T276]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   13.919896][  T276]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   13.919897][  T276]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   13.919901][  T276]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   13.919903][  T276]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   13.919907][  T276]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   13.919908][  T276]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.919913][  T276]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   13.919915][  T276]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   13.919919][  T276]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   13.919922][  T276]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   13.919925][  T276]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   13.919931][  T276]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   13.919934][  T276]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   13.919938][  T276]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   13.919942][  T276]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   13.919945][  T276]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   13.919949][  T276]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   13.919954][  T276]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   13.919958][  T276]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   13.919959][  T276]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   13.919965][  T276]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   13.919968][  T276]  ____sys_sendmsg (net/socket.c:2713)
[   13.919970][  T276]  ? copy_msghdr_from_user (net/socket.c:2650)
[   13.919972][  T276]  ? sock_write_iter (net/socket.c:1269)
[   13.919974][  T276]  ? move_addr_to_kernel (net/socket.c:258)
[   13.919982][  T276]  ___sys_sendmsg (net/socket.c:2767)
[   13.919985][  T276]  ? copy_msghdr_from_user (net/socket.c:2619)
[   13.920001][  T276]  __sys_sendmsg (net/socket.c:2799)
[   13.920005][  T276]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   13.920011][  T276]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.920014][  T276]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   13.920017][  T276]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   13.920020][  T276]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   13.920023][  T276] RIP: 0033:0x7f87ff82754e
[   13.920027][  T276] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   13.920028][  T276] RSP: 002b:00007ffd2a99a870 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   13.920031][  T276] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007f87ff82754e
[   13.920032][  T276] RDX: 0000000000000000 RSI: 00007ffd2a99a920 RDI: 0000000000000005
[   13.920033][  T276] RBP: 00007ffd2a99a880 R08: 0000000000000000 R09: 0000000000000000
[   13.920034][  T276] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a918542
[   13.920035][  T276] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffd2a99afe0
| [   18.911565][   T72] softirqs last disabled at (23838): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:109)
| [   18.911568][   T72] Preemption disabled at:
| [   18.911569][   T72] 0x0
| [   18.911582][   T72] Tainted: [W]=WARN
[   18.911583][   T72] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   18.911586][   T72] Workqueue: netns cleanup_net
[   18.911590][   T72] Call Trace:
[   18.911592][   T72]  <TASK>
[   18.911595][   T72]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   18.911604][   T72]  __might_resched.cold (kernel/sched/core.c:9234)
[   18.911610][   T72]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   18.911615][   T72]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   18.911622][   T72]  __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))
[   18.911625][   T72]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   18.911634][   T72]  ? 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)
[   18.911638][   T72]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   18.911644][   T72]  put_chars (drivers/char/virtio_console.c:1176)
[   18.911648][   T72]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   18.911659][   T72]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   18.911671][   T72]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   18.911676][   T72]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   18.911684][   T72]  console_emit_next_record (kernel/printk/printk.c:3183)
[   18.911690][   T72]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   18.911693][   T72]  ? 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))
[   18.911698][   T72]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   18.911702][   T72]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   18.911709][   T72]  console_flush_one_record (kernel/printk/printk.c:3268)
[   18.911716][   T72]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   18.911718][   T72]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   18.911728][   T72]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   18.911733][   T72]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   18.911735][   T72]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   18.911738][   T72]  ? 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)
[   18.911744][   T72]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   18.911747][   T72]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   18.911752][   T72]  vprintk_emit (kernel/printk/printk.c:2479)
[   18.911757][   T72]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   18.911761][   T72]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   18.911769][   T72]  _printk (kernel/printk/printk.c:2504)
[   18.911774][   T72]  ? snapshot_read.cold (user.c:?)
[   18.911778][   T72]  ? sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1062 (discriminator 37) arch/x86/kernel/apic/apic.c:1062 (discriminator 37))
[   18.911795][   T72]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   18.911803][   T72]  br_stp_disable_port (net/bridge/br_stp_if.c:106)
[   18.911808][   T72]  br_device_event (net/bridge/br.c:111)
[   18.911812][   T72]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   18.911816][   T72]  ? packet_sendmsg_spkt (af_packet.c:?)
[   18.911826][   T72]  notifier_call_chain (kernel/notifier.c:85)
[   18.911836][   T72]  netif_close_many (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:1829)
[   18.911840][   T72]  ? trace_kfree (./include/trace/events/kmem.h:97 (discriminator 22))
[   18.911846][   T72]  ? __dev_close_many (net/core/dev.c:1804)
[   18.911851][   T72]  ? netif_close_many_and_unlock (net/core/dev.c:12411)
[   18.911858][   T72]  unregister_netdevice_many_notify (net/core/dev.c:12487)
[   18.911862][   T72]  ? ops_undo_list (net/core/net_namespace.c:206 net/core/net_namespace.c:253)
[   18.911865][   T72]  ? worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   18.911868][   T72]  ? kthread (kernel/kthread.c:436)
[   18.911870][   T72]  ? ret_from_fork (arch/x86/kernel/process.c:158)
[   18.911874][   T72]  ? ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
[   18.911878][   T72]  ? unregister_netdevice_queued (./include/linux/list.h:419 (discriminator 3))
[   18.911892][   T72]  default_device_exit_batch (net/core/dev.c:12589 net/core/dev.c:13288)
[   18.911898][   T72]  ? unregister_netdevice_queue (./include/linux/list.h:173)
[   18.911902][   T72]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   18.911906][   T72]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   18.911913][   T72]  ops_undo_list (net/core/net_namespace.c:206 net/core/net_namespace.c:253)
[   18.911919][   T72]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   18.911923][   T72]  ? netns_install (./include/linux/ns_common.h:26)
[   18.911925][   T72]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   18.911930][   T72]  ? idr_destroy (lib/radix-tree.c:310 lib/radix-tree.c:674 lib/radix-tree.c:1563)
[   18.911938][   T72]  cleanup_net (net/core/net_namespace.c:706)
[   18.911942][   T72]  ? net_passive_dec (./include/linux/llist.h:241)
[   18.911949][   T72]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   18.911952][   T72]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   18.911958][   T72]  process_one_work (kernel/workqueue.c:3387)
[   18.911969][   T72]  ? __queue_delayed_work (kernel/workqueue.c:2622)
[   18.911974][   T72]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   18.911987][   T72]  worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   18.911994][   T72]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   18.911997][   T72]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   18.912002][   T72]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   18.912006][   T72]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   18.912009][   T72]  kthread (kernel/kthread.c:436)
[   18.912012][   T72]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   18.912017][   T72]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   18.912021][   T72]  ret_from_fork (arch/x86/kernel/process.c:158)
[   18.912026][   T72]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1))
[   18.912031][   T72]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   18.912036][   T72]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   18.912040][   T72]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   23.004119][  T398] softirqs last disabled at (44040): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   23.004123][  T398] Preemption disabled at:
| [   23.004124][  T398] vprintk_emit (kernel/printk/printk.c:2471)
| [   23.004135][  T398] Tainted: [W]=WARN
[   23.004136][  T398] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   23.004138][  T398] Call Trace:
[   23.004141][  T398]  <TASK>
[   23.004143][  T398]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   23.004150][  T398]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   23.004153][  T398]  __might_resched.cold (kernel/sched/core.c:9234)
[   23.004159][  T398]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   23.004165][  T398]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   23.004172][  T398]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   23.004175][  T398]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   23.004184][  T398]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   23.004188][  T398]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   23.004194][  T398]  put_chars (drivers/char/virtio_console.c:1176)
[   23.004198][  T398]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   23.004209][  T398]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   23.004220][  T398]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   23.004226][  T398]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   23.004233][  T398]  console_emit_next_record (kernel/printk/printk.c:3183)
[   23.004239][  T398]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   23.004242][  T398]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   23.004247][  T398]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   23.004251][  T398]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   23.004258][  T398]  console_flush_one_record (kernel/printk/printk.c:3268)
[   23.004265][  T398]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   23.004267][  T398]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   23.004277][  T398]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   23.004281][  T398]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   23.004283][  T398]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   23.004286][  T398]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   23.004293][  T398]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   23.004295][  T398]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   23.004300][  T398]  vprintk_emit (kernel/printk/printk.c:2479)
[   23.004306][  T398]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   23.004310][  T398]  ? _mutex_trylock_nest_lock (kernel/locking/mutex.c:1227 (discriminator 6))
[   23.004318][  T398]  _printk (kernel/printk/printk.c:2504)
[   23.004323][  T398]  ? snapshot_read.cold (user.c:?)
[   23.004326][  T398]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   23.004330][  T398]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   23.004334][  T398]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   23.004337][  T398]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   23.004343][  T398]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   23.004347][  T398]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   23.004351][  T398]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   23.004355][  T398]  ? netdev_notice (net/core/dev.c:13194)
[   23.004360][  T398]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   23.004369][  T398]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   23.004373][  T398]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   23.004379][  T398]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   23.004383][  T398]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   23.004386][  T398]  ? register_netdev (net/core/dev.c:11618)
[   23.004389][  T398]  ? 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))
[   23.004397][  T398]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   23.004401][  T398]  ? __kernel_text_address (kernel/extable.c:79)
[   23.004404][  T398]  ? write_profile (profile.c:?)
[   23.004431][  T398]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   23.004439][  T398]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   23.004445][  T398]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   23.004449][  T398]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   23.004451][  T398]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   23.004454][  T398]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   23.004459][  T398]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   23.004462][  T398]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   23.004465][  T398]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   23.004469][  T398]  ? kasan_save_stack (mm/kasan/common.c:58)
[   23.004472][  T398]  ? kasan_save_stack (mm/kasan/common.c:57)
[   23.004474][  T398]  ? kasan_save_track (mm/kasan/common.c:78)
[   23.004476][  T398]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   23.004480][  T398]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   23.004483][  T398]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   23.004487][  T398]  ? ___sys_sendmsg (net/socket.c:2758)
[   23.004493][  T398]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   23.004496][  T398]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   23.004501][  T398]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   23.004504][  T398]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   23.004506][  T398]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   23.004508][  T398]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   23.004511][  T398]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   23.004515][  T398]  ? __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)
[   23.004517][  T398]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   23.004521][  T398]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   23.004527][  T398]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   23.004529][  T398]  ? nla_get_range_signed (lib/nlattr.c:270)
[   23.004536][  T398]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   23.004540][  T398]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   23.004549][  T398]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   23.004558][  T398]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   23.004561][  T398]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   23.004569][  T398]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   23.004572][  T398]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   23.004575][  T398]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   23.004578][  T398]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   23.004584][  T398]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   23.004588][  T398]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   23.004593][  T398]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   23.004595][  T398]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   23.004603][  T398]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   23.004606][  T398]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   23.004611][  T398]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   23.004616][  T398]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   23.004621][  T398]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   23.004632][  T398]  ? 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))
[   23.004635][  T398]  ? 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))
[   23.004643][  T398]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   23.004650][  T398]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   23.004654][  T398]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   23.004661][  T398]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   23.004668][  T398]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   23.004675][  T398]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   23.004677][  T398]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   23.004685][  T398]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   23.004690][  T398]  ____sys_sendmsg (net/socket.c:2713)
[   23.004694][  T398]  ? copy_msghdr_from_user (net/socket.c:2650)
[   23.004697][  T398]  ? sock_write_iter (net/socket.c:1269)
[   23.004699][  T398]  ? move_addr_to_kernel (net/socket.c:258)
[   23.004713][  T398]  ___sys_sendmsg (net/socket.c:2767)
[   23.004717][  T398]  ? copy_msghdr_from_user (net/socket.c:2619)
[   23.004747][  T398]  __sys_sendmsg (net/socket.c:2799)
[   23.004751][  T398]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   23.004762][  T398]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   23.004768][  T398]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   23.004772][  T398]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   23.004777][  T398]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   23.004780][  T398] RIP: 0033:0x7f88f48b854e
[   23.004785][  T398] 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
[   23.004787][  T398] RSP: 002b:00007ffc3126d880 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   23.004791][  T398] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007f88f48b854e
[   23.004793][  T398] RDX: 0000000000000000 RSI: 00007ffc3126d930 RDI: 0000000000000005
[   23.004794][  T398] RBP: 00007ffc3126d890 R08: 0000000000000000 R09: 0000000000000000
[   23.004796][  T398] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91854b
[   23.004797][  T398] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffc3126dff0
| [   24.121969][  T416] softirqs last disabled at (40716): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   24.121971][  T416] Preemption disabled at:
| [   24.121972][  T416] vprintk_emit (kernel/printk/printk.c:2471)
| [   24.121980][  T416] Tainted: [W]=WARN
[   24.121981][  T416] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   24.121982][  T416] Call Trace:
[   24.121984][  T416]  <TASK>
[   24.121985][  T416]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   24.121991][  T416]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   24.121993][  T416]  __might_resched.cold (kernel/sched/core.c:9234)
[   24.121997][  T416]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   24.122001][  T416]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   24.122005][  T416]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   24.122007][  T416]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   24.122013][  T416]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   24.122016][  T416]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   24.122019][  T416]  put_chars (drivers/char/virtio_console.c:1176)
[   24.122022][  T416]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   24.122028][  T416]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   24.122035][  T416]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   24.122038][  T416]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   24.122043][  T416]  console_emit_next_record (kernel/printk/printk.c:3183)
[   24.122047][  T416]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   24.122049][  T416]  ? 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))
[   24.122052][  T416]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.122054][  T416]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   24.122058][  T416]  console_flush_one_record (kernel/printk/printk.c:3268)
[   24.122062][  T416]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   24.122064][  T416]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   24.122069][  T416]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   24.122072][  T416]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   24.122074][  T416]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.122076][  T416]  ? 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)
[   24.122079][  T416]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   24.122081][  T416]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   24.122084][  T416]  vprintk_emit (kernel/printk/printk.c:2479)
[   24.122087][  T416]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   24.122089][  T416]  ? _mutex_trylock_nest_lock (kernel/locking/mutex.c:1227 (discriminator 6))
[   24.122094][  T416]  _printk (kernel/printk/printk.c:2504)
[   24.122098][  T416]  ? snapshot_read.cold (user.c:?)
[   24.122100][  T416]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   24.122102][  T416]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   24.122105][  T416]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   24.122107][  T416]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   24.122111][  T416]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   24.122113][  T416]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   24.122115][  T416]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   24.122118][  T416]  ? netdev_notice (net/core/dev.c:13194)
[   24.122121][  T416]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   24.122124][  T416]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   24.122126][  T416]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   24.122130][  T416]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   24.122132][  T416]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   24.122134][  T416]  ? register_netdev (net/core/dev.c:11618)
[   24.122135][  T416]  ? 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))
[   24.122140][  T416]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   24.122143][  T416]  ? __kernel_text_address (kernel/extable.c:79)
[   24.122145][  T416]  ? write_profile (profile.c:?)
[   24.122149][  T416]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   24.122155][  T416]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   24.122158][  T416]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   24.122160][  T416]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   24.122162][  T416]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   24.122164][  T416]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   24.122167][  T416]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   24.122169][  T416]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   24.122170][  T416]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   24.122173][  T416]  ? kasan_save_stack (mm/kasan/common.c:58)
[   24.122175][  T416]  ? kasan_save_stack (mm/kasan/common.c:57)
[   24.122176][  T416]  ? kasan_save_track (mm/kasan/common.c:78)
[   24.122177][  T416]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   24.122179][  T416]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   24.122181][  T416]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   24.122184][  T416]  ? ___sys_sendmsg (net/socket.c:2758)
[   24.122188][  T416]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   24.122190][  T416]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   24.122192][  T416]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.122194][  T416]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   24.122195][  T416]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.122196][  T416]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.122198][  T416]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   24.122200][  T416]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   24.122202][  T416]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   24.122204][  T416]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   24.122207][  T416]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   24.122208][  T416]  ? nla_get_range_signed (lib/nlattr.c:270)
[   24.122213][  T416]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.122215][  T416]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   24.122220][  T416]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   24.122225][  T416]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   24.122227][  T416]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   24.122232][  T416]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   24.122234][  T416]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   24.122236][  T416]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   24.122237][  T416]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   24.122241][  T416]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   24.122243][  T416]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   24.122246][  T416]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   24.122248][  T416]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   24.122252][  T416]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   24.122254][  T416]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   24.122257][  T416]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   24.122260][  T416]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   24.122263][  T416]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   24.122270][  T416]  ? 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))
[   24.122272][  T416]  ? 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))
[   24.122276][  T416]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   24.122280][  T416]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   24.122282][  T416]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   24.122286][  T416]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   24.122290][  T416]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   24.122294][  T416]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   24.122296][  T416]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   24.122301][  T416]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   24.122303][  T416]  ____sys_sendmsg (net/socket.c:2713)
[   24.122306][  T416]  ? copy_msghdr_from_user (net/socket.c:2650)
[   24.122308][  T416]  ? sock_write_iter (net/socket.c:1269)
[   24.122309][  T416]  ? move_addr_to_kernel (net/socket.c:258)
[   24.122317][  T416]  ___sys_sendmsg (net/socket.c:2767)
[   24.122319][  T416]  ? copy_msghdr_from_user (net/socket.c:2619)
[   24.122335][  T416]  __sys_sendmsg (net/socket.c:2799)
[   24.122338][  T416]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   24.122344][  T416]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.122347][  T416]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   24.122350][  T416]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   24.122353][  T416]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   24.122355][  T416] RIP: 0033:0x7fc067a1b54e
[   24.122359][  T416] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   24.122360][  T416] RSP: 002b:00007ffe6f51b480 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   24.122363][  T416] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fc067a1b54e
[   24.122367][  T416] RDX: 0000000000000000 RSI: 00007ffe6f51b530 RDI: 0000000000000005
[   24.122368][  T416] RBP: 00007ffe6f51b490 R08: 0000000000000000 R09: 0000000000000000
[   24.122369][  T416] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91854c
[   24.122370][  T416] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffe6f51bbf0
| [   29.125251][   T72] softirqs last disabled at (206184): br_device_event (./include/linux/spinlock.h:353 net/bridge/br.c:109)
| [   29.125253][   T72] Preemption disabled at:
| [   29.125254][   T72] 0x0
| [   29.125264][   T72] Tainted: [W]=WARN
[   29.125265][   T72] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   29.125268][   T72] Workqueue: netns cleanup_net
[   29.125271][   T72] Call Trace:
[   29.125273][   T72]  <TASK>
[   29.125275][   T72]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   29.125281][   T72]  __might_resched.cold (kernel/sched/core.c:9234)
[   29.125286][   T72]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   29.125290][   T72]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   29.125295][   T72]  __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))
[   29.125297][   T72]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   29.125304][   T72]  ? 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)
[   29.125306][   T72]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   29.125310][   T72]  put_chars (drivers/char/virtio_console.c:1176)
[   29.125313][   T72]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   29.125320][   T72]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   29.125328][   T72]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   29.125332][   T72]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   29.125337][   T72]  console_emit_next_record (kernel/printk/printk.c:3183)
[   29.125341][   T72]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   29.125343][   T72]  ? 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))
[   29.125346][   T72]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.125349][   T72]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   29.125354][   T72]  console_flush_one_record (kernel/printk/printk.c:3268)
[   29.125358][   T72]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   29.125360][   T72]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   29.125368][   T72]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   29.125371][   T72]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   29.125373][   T72]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.125375][   T72]  ? 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)
[   29.125379][   T72]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   29.125381][   T72]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   29.125384][   T72]  vprintk_emit (kernel/printk/printk.c:2479)
[   29.125388][   T72]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   29.125389][   T72]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   29.125392][   T72]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   29.125394][   T72]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   29.125399][   T72]  _printk (kernel/printk/printk.c:2504)
[   29.125403][   T72]  ? snapshot_read.cold (user.c:?)
[   29.125411][   T72]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   29.125416][   T72]  br_stp_disable_port (net/bridge/br_stp_if.c:106)
[   29.125420][   T72]  br_device_event (net/bridge/br.c:111)
[   29.125422][   T72]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   29.125427][   T72]  ? packet_sendmsg_spkt (af_packet.c:?)
[   29.125433][   T72]  notifier_call_chain (kernel/notifier.c:85)
[   29.125439][   T72]  netif_close_many (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:1829)
[   29.125442][   T72]  ? trace_kfree (./include/trace/events/kmem.h:97 (discriminator 22))
[   29.125446][   T72]  ? __dev_close_many (net/core/dev.c:1804)
[   29.125449][   T72]  ? netif_close_many_and_unlock (net/core/dev.c:12411)
[   29.125454][   T72]  unregister_netdevice_many_notify (net/core/dev.c:12487)
[   29.125456][   T72]  ? ops_undo_list (net/core/net_namespace.c:206 net/core/net_namespace.c:253)
[   29.125459][   T72]  ? worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   29.125460][   T72]  ? kthread (kernel/kthread.c:436)
[   29.125463][   T72]  ? ret_from_fork (arch/x86/kernel/process.c:158)
[   29.125465][   T72]  ? ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
[   29.125468][   T72]  ? unregister_netdevice_queued (./include/linux/list.h:419 (discriminator 3))
[   29.125477][   T72]  default_device_exit_batch (net/core/dev.c:12589 net/core/dev.c:13288)
[   29.125480][   T72]  ? unregister_netdevice_queue (./include/linux/list.h:173)
[   29.125483][   T72]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   29.125485][   T72]  ? fou_exit_net (net/ipv4/fou_core.c:1228)
[   29.125490][   T72]  ops_undo_list (net/core/net_namespace.c:206 net/core/net_namespace.c:253)
[   29.125494][   T72]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   29.125497][   T72]  ? netns_install (./include/linux/ns_common.h:26)
[   29.125499][   T72]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   29.125502][   T72]  ? idr_destroy (lib/radix-tree.c:310 lib/radix-tree.c:674 lib/radix-tree.c:1563)
[   29.125507][   T72]  cleanup_net (net/core/net_namespace.c:706)
[   29.125511][   T72]  ? net_passive_dec (./include/linux/llist.h:241)
[   29.125515][   T72]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   29.125517][   T72]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.125520][   T72]  process_one_work (kernel/workqueue.c:3387)
[   29.125527][   T72]  ? __queue_delayed_work (kernel/workqueue.c:2622)
[   29.125531][   T72]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   29.125539][   T72]  worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   29.125543][   T72]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   29.125545][   T72]  ? __kthread_parkme (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 kernel/kthread.c:272)
[   29.125548][   T72]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   29.125551][   T72]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   29.125553][   T72]  kthread (kernel/kthread.c:436)
[   29.125555][   T72]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   29.125559][   T72]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   29.125562][   T72]  ret_from_fork (arch/x86/kernel/process.c:158)
[   29.125565][   T72]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1))
[   29.125568][   T72]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   29.125572][   T72]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   29.125575][   T72]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   32.051034][  T523] softirqs last disabled at (44330): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   32.051036][  T523] Preemption disabled at:
| [   32.051037][  T523] vprintk_emit (kernel/printk/printk.c:2471)
| [   32.051046][  T523] Tainted: [W]=WARN
[   32.051046][  T523] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   32.051048][  T523] Call Trace:
[   32.051050][  T523]  <TASK>
[   32.051051][  T523]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   32.051057][  T523]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   32.051059][  T523]  __might_resched.cold (kernel/sched/core.c:9234)
[   32.051063][  T523]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   32.051067][  T523]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   32.051072][  T523]  __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))
[   32.051074][  T523]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   32.051080][  T523]  ? 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)
[   32.051083][  T523]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   32.051086][  T523]  put_chars (drivers/char/virtio_console.c:1176)
[   32.051089][  T523]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   32.051095][  T523]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   32.051103][  T523]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   32.051106][  T523]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   32.051111][  T523]  console_emit_next_record (kernel/printk/printk.c:3183)
[   32.051115][  T523]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   32.051116][  T523]  ? 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))
[   32.051120][  T523]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   32.051122][  T523]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   32.051126][  T523]  console_flush_one_record (kernel/printk/printk.c:3268)
[   32.051130][  T523]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   32.051132][  T523]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   32.051138][  T523]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   32.051140][  T523]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   32.051142][  T523]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   32.051144][  T523]  ? 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)
[   32.051147][  T523]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   32.051149][  T523]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   32.051152][  T523]  vprintk_emit (kernel/printk/printk.c:2479)
[   32.051155][  T523]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   32.051158][  T523]  ? _mutex_trylock_nest_lock (kernel/locking/mutex.c:1227 (discriminator 6))
[   32.051163][  T523]  _printk (kernel/printk/printk.c:2504)
[   32.051167][  T523]  ? snapshot_read.cold (user.c:?)
[   32.051168][  T523]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   32.051171][  T523]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   32.051174][  T523]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   32.051176][  T523]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   32.051180][  T523]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   32.051183][  T523]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   32.051185][  T523]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   32.051188][  T523]  ? netdev_notice (net/core/dev.c:13194)
[   32.051191][  T523]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   32.051194][  T523]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   32.051196][  T523]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   32.051200][  T523]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   32.051202][  T523]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   32.051204][  T523]  ? register_netdev (net/core/dev.c:11618)
[   32.051205][  T523]  ? 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))
[   32.051211][  T523]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   32.051213][  T523]  ? __kernel_text_address (kernel/extable.c:79)
[   32.051216][  T523]  ? write_profile (profile.c:?)
[   32.051220][  T523]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   32.051226][  T523]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   32.051229][  T523]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   32.051231][  T523]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   32.051233][  T523]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   32.051235][  T523]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   32.051238][  T523]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   32.051240][  T523]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   32.051242][  T523]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   32.051244][  T523]  ? kasan_save_stack (mm/kasan/common.c:58)
[   32.051246][  T523]  ? kasan_save_stack (mm/kasan/common.c:57)
[   32.051247][  T523]  ? kasan_save_track (mm/kasan/common.c:78)
[   32.051248][  T523]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   32.051251][  T523]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   32.051252][  T523]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   32.051255][  T523]  ? ___sys_sendmsg (net/socket.c:2758)
[   32.051259][  T523]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   32.051261][  T523]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   32.051264][  T523]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   32.051265][  T523]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   32.051267][  T523]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   32.051268][  T523]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   32.051270][  T523]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   32.051272][  T523]  ? __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)
[   32.051273][  T523]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   32.051275][  T523]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   32.051279][  T523]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   32.051280][  T523]  ? nla_get_range_signed (lib/nlattr.c:270)
[   32.051285][  T523]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   32.051287][  T523]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   32.051292][  T523]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   32.051297][  T523]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   32.051299][  T523]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   32.051304][  T523]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   32.051305][  T523]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   32.051307][  T523]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   32.051309][  T523]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   32.051313][  T523]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   32.051315][  T523]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   32.051318][  T523]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   32.051320][  T523]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   32.051324][  T523]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   32.051326][  T523]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   32.051329][  T523]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   32.051333][  T523]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   32.051335][  T523]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   32.051342][  T523]  ? 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))
[   32.051344][  T523]  ? 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))
[   32.051348][  T523]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   32.051352][  T523]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   32.051355][  T523]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   32.051359][  T523]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   32.051363][  T523]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   32.051370][  T523]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   32.051371][  T523]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   32.051376][  T523]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   32.051379][  T523]  ____sys_sendmsg (net/socket.c:2713)
[   32.051381][  T523]  ? copy_msghdr_from_user (net/socket.c:2650)
[   32.051384][  T523]  ? sock_write_iter (net/socket.c:1269)
[   32.051385][  T523]  ? move_addr_to_kernel (net/socket.c:258)
[   32.051393][  T523]  ___sys_sendmsg (net/socket.c:2767)
[   32.051395][  T523]  ? copy_msghdr_from_user (net/socket.c:2619)
[   32.051411][  T523]  __sys_sendmsg (net/socket.c:2799)
[   32.051414][  T523]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   32.051420][  T523]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   32.051423][  T523]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   32.051426][  T523]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   32.051429][  T523]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   32.051431][  T523] RIP: 0033:0x7f359e22c54e
[   32.051435][  T523] 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
[   32.051437][  T523] RSP: 002b:00007fff336ff7f0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   32.051440][  T523] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007f359e22c54e
[   32.051441][  T523] RDX: 0000000000000000 RSI: 00007fff336ff8a0 RDI: 0000000000000005
[   32.051442][  T523] RBP: 00007fff336ff800 R08: 0000000000000000 R09: 0000000000000000
[   32.051443][  T523] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a918554
[   32.051444][  T523] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fff336fff60
| [   37.897320][  T583] softirqs last disabled at (41436): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   37.897322][  T583] Preemption disabled at:
| [   37.897323][  T583] vprintk_emit (kernel/printk/printk.c:2471)
| [   37.897332][  T583] Tainted: [W]=WARN
[   37.897333][  T583] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   37.897334][  T583] Call Trace:
[   37.897336][  T583]  <TASK>
[   37.897338][  T583]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   37.897344][  T583]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   37.897345][  T583]  __might_resched.cold (kernel/sched/core.c:9234)
[   37.897350][  T583]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   37.897354][  T583]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   37.897359][  T583]  __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))
[   37.897361][  T583]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   37.897370][  T583]  ? 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)
[   37.897373][  T583]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   37.897377][  T583]  put_chars (drivers/char/virtio_console.c:1176)
[   37.897380][  T583]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   37.897386][  T583]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   37.897394][  T583]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   37.897397][  T583]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   37.897402][  T583]  console_emit_next_record (kernel/printk/printk.c:3183)
[   37.897406][  T583]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   37.897408][  T583]  ? 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))
[   37.897411][  T583]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   37.897414][  T583]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   37.897418][  T583]  console_flush_one_record (kernel/printk/printk.c:3268)
[   37.897422][  T583]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   37.897424][  T583]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   37.897429][  T583]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   37.897432][  T583]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   37.897434][  T583]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   37.897436][  T583]  ? 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)
[   37.897440][  T583]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   37.897441][  T583]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   37.897444][  T583]  vprintk_emit (kernel/printk/printk.c:2479)
[   37.897447][  T583]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   37.897449][  T583]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   37.897451][  T583]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   37.897453][  T583]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   37.897457][  T583]  _printk (kernel/printk/printk.c:2504)
[   37.897461][  T583]  ? snapshot_read.cold (user.c:?)
[   37.897462][  T583]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   37.897465][  T583]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   37.897468][  T583]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   37.897470][  T583]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   37.897474][  T583]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   37.897477][  T583]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   37.897479][  T583]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   37.897482][  T583]  ? netdev_notice (net/core/dev.c:13194)
[   37.897485][  T583]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   37.897488][  T583]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   37.897490][  T583]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   37.897494][  T583]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   37.897496][  T583]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   37.897499][  T583]  ? netif_set_mtu_ext (net/core/dev.c:2350 net/core/dev.c:9952)
[   37.897502][  T583]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   37.897507][  T583]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   37.897513][  T583]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   37.897516][  T583]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   37.897520][  T583]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   37.897521][  T583]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   37.897523][  T583]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   37.897526][  T583]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   37.897528][  T583]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   37.897530][  T583]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   37.897533][  T583]  ? kasan_save_stack (mm/kasan/common.c:58)
[   37.897534][  T583]  ? kasan_save_stack (mm/kasan/common.c:57)
[   37.897536][  T583]  ? kasan_save_track (mm/kasan/common.c:78)
[   37.897537][  T583]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   37.897539][  T583]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   37.897541][  T583]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   37.897544][  T583]  ? ___sys_sendmsg (net/socket.c:2758)
[   37.897548][  T583]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   37.897550][  T583]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   37.897553][  T583]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   37.897554][  T583]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   37.897556][  T583]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   37.897557][  T583]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   37.897559][  T583]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   37.897561][  T583]  ? __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)
[   37.897564][  T583]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   37.897566][  T583]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   37.897569][  T583]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   37.897570][  T583]  ? nla_get_range_signed (lib/nlattr.c:270)
[   37.897575][  T583]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   37.897577][  T583]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   37.897583][  T583]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   37.897588][  T583]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   37.897590][  T583]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   37.897594][  T583]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   37.897596][  T583]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   37.897598][  T583]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   37.897600][  T583]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   37.897604][  T583]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   37.897606][  T583]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   37.897609][  T583]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   37.897610][  T583]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   37.897615][  T583]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   37.897617][  T583]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   37.897620][  T583]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   37.897623][  T583]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   37.897626][  T583]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   37.897633][  T583]  ? 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))
[   37.897635][  T583]  ? 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))
[   37.897639][  T583]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   37.897643][  T583]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   37.897646][  T583]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   37.897650][  T583]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   37.897654][  T583]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   37.897658][  T583]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   37.897660][  T583]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   37.897665][  T583]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   37.897668][  T583]  ____sys_sendmsg (net/socket.c:2713)
[   37.897670][  T583]  ? copy_msghdr_from_user (net/socket.c:2650)
[   37.897673][  T583]  ? sock_write_iter (net/socket.c:1269)
[   37.897674][  T583]  ? move_addr_to_kernel (net/socket.c:258)
[   37.897682][  T583]  ___sys_sendmsg (net/socket.c:2767)
[   37.897685][  T583]  ? copy_msghdr_from_user (net/socket.c:2619)
[   37.897701][  T583]  __sys_sendmsg (net/socket.c:2799)
[   37.897704][  T583]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   37.897710][  T583]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   37.897713][  T583]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   37.897716][  T583]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   37.897719][  T583]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   37.897721][  T583] RIP: 0033:0x7faca381954e
[   37.897725][  T583] 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
[   37.897726][  T583] RSP: 002b:00007fffb200cc10 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   37.897729][  T583] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007faca381954e
[   37.897731][  T583] RDX: 0000000000000000 RSI: 00007fffb200ccc0 RDI: 0000000000000005
[   37.897731][  T583] RBP: 00007fffb200cc20 R08: 0000000000000000 R09: 0000000000000000
[   37.897732][  T583] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91855a
[   37.897733][  T583] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fffb200d380
| [   39.007220][  T630] softirqs last disabled at (34360): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   39.007223][  T630] Preemption disabled at:
| [   39.007223][  T630] vprintk_emit (kernel/printk/printk.c:2471)
| [   39.007232][  T630] Tainted: [W]=WARN
[   39.007233][  T630] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   39.007235][  T630] Call Trace:
[   39.007236][  T630]  <TASK>
[   39.007238][  T630]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   39.007244][  T630]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   39.007245][  T630]  __might_resched.cold (kernel/sched/core.c:9234)
[   39.007249][  T630]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   39.007254][  T630]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   39.007258][  T630]  __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))
[   39.007260][  T630]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   39.007267][  T630]  ? 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)
[   39.007269][  T630]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   39.007273][  T630]  put_chars (drivers/char/virtio_console.c:1176)
[   39.007275][  T630]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   39.007281][  T630]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   39.007289][  T630]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   39.007292][  T630]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   39.007297][  T630]  console_emit_next_record (kernel/printk/printk.c:3183)
[   39.007301][  T630]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   39.007302][  T630]  ? 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))
[   39.007305][  T630]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   39.007308][  T630]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   39.007312][  T630]  console_flush_one_record (kernel/printk/printk.c:3268)
[   39.007316][  T630]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   39.007318][  T630]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   39.007323][  T630]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   39.007326][  T630]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   39.007328][  T630]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   39.007330][  T630]  ? 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)
[   39.007333][  T630]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   39.007335][  T630]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   39.007338][  T630]  vprintk_emit (kernel/printk/printk.c:2479)
[   39.007341][  T630]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   39.007343][  T630]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   39.007345][  T630]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   39.007346][  T630]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   39.007350][  T630]  _printk (kernel/printk/printk.c:2504)
[   39.007354][  T630]  ? snapshot_read.cold (user.c:?)
[   39.007355][  T630]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   39.007358][  T630]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   39.007361][  T630]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   39.007363][  T630]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   39.007369][  T630]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   39.007372][  T630]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   39.007374][  T630]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   39.007377][  T630]  ? netdev_notice (net/core/dev.c:13194)
[   39.007379][  T630]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   39.007382][  T630]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   39.007385][  T630]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   39.007388][  T630]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   39.007390][  T630]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   39.007393][  T630]  ? netif_set_mtu_ext (net/core/dev.c:2350 net/core/dev.c:9952)
[   39.007397][  T630]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   39.007401][  T630]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   39.007407][  T630]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   39.007410][  T630]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   39.007414][  T630]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   39.007415][  T630]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   39.007417][  T630]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   39.007420][  T630]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   39.007422][  T630]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   39.007424][  T630]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   39.007426][  T630]  ? kasan_save_stack (mm/kasan/common.c:58)
[   39.007428][  T630]  ? kasan_save_stack (mm/kasan/common.c:57)
[   39.007429][  T630]  ? kasan_save_track (mm/kasan/common.c:78)
[   39.007431][  T630]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   39.007433][  T630]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   39.007435][  T630]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   39.007437][  T630]  ? ___sys_sendmsg (net/socket.c:2758)
[   39.007441][  T630]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   39.007443][  T630]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   39.007446][  T630]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   39.007447][  T630]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   39.007449][  T630]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   39.007450][  T630]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   39.007452][  T630]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   39.007454][  T630]  ? __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)
[   39.007457][  T630]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   39.007459][  T630]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   39.007462][  T630]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   39.007463][  T630]  ? nla_get_range_signed (lib/nlattr.c:270)
[   39.007468][  T630]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   39.007470][  T630]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   39.007475][  T630]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   39.007480][  T630]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   39.007482][  T630]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   39.007486][  T630]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   39.007488][  T630]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   39.007490][  T630]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   39.007492][  T630]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   39.007495][  T630]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   39.007498][  T630]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   39.007501][  T630]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   39.007502][  T630]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   39.007506][  T630]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   39.007508][  T630]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   39.007512][  T630]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   39.007515][  T630]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   39.007518][  T630]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   39.007524][  T630]  ? 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))
[   39.007526][  T630]  ? 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))
[   39.007531][  T630]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   39.007534][  T630]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   39.007537][  T630]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   39.007541][  T630]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   39.007545][  T630]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   39.007549][  T630]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   39.007550][  T630]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   39.007556][  T630]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   39.007558][  T630]  ____sys_sendmsg (net/socket.c:2713)
[   39.007561][  T630]  ? copy_msghdr_from_user (net/socket.c:2650)
[   39.007563][  T630]  ? sock_write_iter (net/socket.c:1269)
[   39.007564][  T630]  ? move_addr_to_kernel (net/socket.c:258)
[   39.007571][  T630]  ___sys_sendmsg (net/socket.c:2767)
[   39.007574][  T630]  ? copy_msghdr_from_user (net/socket.c:2619)
[   39.007590][  T630]  __sys_sendmsg (net/socket.c:2799)
[   39.007593][  T630]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   39.007599][  T630]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   39.007602][  T630]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   39.007605][  T630]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   39.007607][  T630]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   39.007610][  T630] RIP: 0033:0x7f241c8f054e
[   39.007613][  T630] 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
[   39.007615][  T630] RSP: 002b:00007ffc7532e6f0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   39.007618][  T630] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007f241c8f054e
[   39.007619][  T630] RDX: 0000000000000000 RSI: 00007ffc7532e7a0 RDI: 0000000000000005
[   39.007620][  T630] RBP: 00007ffc7532e700 R08: 0000000000000000 R09: 0000000000000000
[   39.007621][  T630] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91855b
[   39.007621][  T630] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffc7532ee60
| [   40.181266][  T677] softirqs last disabled at (45057): do_softirq (kernel/softirq.c:546 (discriminator 19) kernel/softirq.c:533 (discriminator 19))
| [   40.181270][  T677] Preemption disabled at:
| [   40.181270][  T677] vprintk_emit (kernel/printk/printk.c:2471)
| [   40.181282][  T677] Tainted: [W]=WARN
[   40.181283][  T677] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   40.181286][  T677] Call Trace:
[   40.181288][  T677]  <TASK>
[   40.181290][  T677]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   40.181297][  T677]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   40.181300][  T677]  __might_resched.cold (kernel/sched/core.c:9234)
[   40.181305][  T677]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   40.181311][  T677]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   40.181317][  T677]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   40.181320][  T677]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   40.181330][  T677]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   40.181333][  T677]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   40.181339][  T677]  put_chars (drivers/char/virtio_console.c:1176)
[   40.181343][  T677]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   40.181354][  T677]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   40.181369][  T677]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   40.181374][  T677]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   40.181381][  T677]  console_emit_next_record (kernel/printk/printk.c:3183)
[   40.181387][  T677]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   40.181389][  T677]  ? 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))
[   40.181394][  T677]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   40.181398][  T677]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   40.181405][  T677]  console_flush_one_record (kernel/printk/printk.c:3268)
[   40.181412][  T677]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   40.181415][  T677]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   40.181424][  T677]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   40.181428][  T677]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   40.181431][  T677]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   40.181434][  T677]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   40.181440][  T677]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   40.181443][  T677]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   40.181447][  T677]  vprintk_emit (kernel/printk/printk.c:2479)
[   40.181452][  T677]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   40.181455][  T677]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   40.181464][  T677]  _printk (kernel/printk/printk.c:2504)
[   40.181468][  T677]  ? snapshot_read.cold (user.c:?)
[   40.181474][  T677]  ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:4427 (discriminator 2))
[   40.181477][  T677]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   40.181481][  T677]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   40.181486][  T677]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   40.181490][  T677]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   40.181494][  T677]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   40.181498][  T677]  ? netdev_notice (net/core/dev.c:13194)
[   40.181502][  T677]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   40.181508][  T677]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   40.181512][  T677]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   40.181518][  T677]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   40.181521][  T677]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   40.181526][  T677]  ? netif_set_mtu_ext (net/core/dev.c:2350 net/core/dev.c:9952)
[   40.181533][  T677]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   40.181541][  T677]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   40.181550][  T677]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   40.181555][  T677]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   40.181560][  T677]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   40.181562][  T677]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   40.181565][  T677]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   40.181570][  T677]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   40.181573][  T677]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   40.181575][  T677]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   40.181579][  T677]  ? kasan_save_stack (mm/kasan/common.c:58)
[   40.181582][  T677]  ? kasan_save_stack (mm/kasan/common.c:57)
[   40.181584][  T677]  ? kasan_save_track (mm/kasan/common.c:78)
[   40.181586][  T677]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   40.181590][  T677]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   40.181593][  T677]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   40.181597][  T677]  ? ___sys_sendmsg (net/socket.c:2758)
[   40.181603][  T677]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   40.181606][  T677]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   40.181611][  T677]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   40.181614][  T677]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   40.181616][  T677]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   40.181618][  T677]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   40.181621][  T677]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   40.181625][  T677]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   40.181627][  T677]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   40.181631][  T677]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   40.181637][  T677]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   40.181638][  T677]  ? nla_get_range_signed (lib/nlattr.c:270)
[   40.181646][  T677]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   40.181650][  T677]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   40.181659][  T677]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   40.181669][  T677]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   40.181672][  T677]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   40.181680][  T677]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   40.181683][  T677]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   40.181686][  T677]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   40.181689][  T677]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   40.181696][  T677]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   40.181699][  T677]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   40.181705][  T677]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   40.181707][  T677]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   40.181714][  T677]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   40.181717][  T677]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   40.181723][  T677]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   40.181728][  T677]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   40.181733][  T677]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   40.181744][  T677]  ? 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))
[   40.181747][  T677]  ? 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))
[   40.181755][  T677]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   40.181761][  T677]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   40.181765][  T677]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   40.181773][  T677]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   40.181779][  T677]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   40.181786][  T677]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   40.181788][  T677]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   40.181797][  T677]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   40.181801][  T677]  ____sys_sendmsg (net/socket.c:2713)
[   40.181805][  T677]  ? copy_msghdr_from_user (net/socket.c:2650)
[   40.181809][  T677]  ? sock_write_iter (net/socket.c:1269)
[   40.181811][  T677]  ? move_addr_to_kernel (net/socket.c:258)
[   40.181824][  T677]  ___sys_sendmsg (net/socket.c:2767)
[   40.181829][  T677]  ? copy_msghdr_from_user (net/socket.c:2619)
[   40.181858][  T677]  __sys_sendmsg (net/socket.c:2799)
[   40.181862][  T677]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   40.181880][  T677]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   40.181885][  T677]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   40.181889][  T677]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   40.181893][  T677]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   40.181897][  T677] RIP: 0033:0x7f8bf489854e
[   40.181902][  T677] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   40.181905][  T677] RSP: 002b:00007ffcc8e6cf90 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   40.181910][  T677] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007f8bf489854e
[   40.181912][  T677] RDX: 0000000000000000 RSI: 00007ffcc8e6d040 RDI: 0000000000000005
[   40.181914][  T677] RBP: 00007ffcc8e6cfa0 R08: 0000000000000000 R09: 0000000000000000
[   40.181915][  T677] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91855c
[   40.181916][  T677] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffcc8e6d700
| [   41.488539][  T724] softirqs last disabled at (48572): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   41.488541][  T724] Preemption disabled at:
| [   41.488542][  T724] vprintk_emit (kernel/printk/printk.c:2471)
| [   41.488550][  T724] Tainted: [W]=WARN
[   41.488551][  T724] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   41.488553][  T724] Call Trace:
[   41.488554][  T724]  <TASK>
[   41.488556][  T724]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   41.488562][  T724]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   41.488564][  T724]  __might_resched.cold (kernel/sched/core.c:9234)
[   41.488568][  T724]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   41.488572][  T724]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   41.488577][  T724]  __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))
[   41.488579][  T724]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   41.488585][  T724]  ? 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)
[   41.488588][  T724]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   41.488592][  T724]  put_chars (drivers/char/virtio_console.c:1176)
[   41.488594][  T724]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   41.488600][  T724]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   41.488608][  T724]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   41.488611][  T724]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   41.488615][  T724]  console_emit_next_record (kernel/printk/printk.c:3183)
[   41.488619][  T724]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   41.488621][  T724]  ? 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))
[   41.488624][  T724]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   41.488627][  T724]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   41.488631][  T724]  console_flush_one_record (kernel/printk/printk.c:3268)
[   41.488635][  T724]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   41.488637][  T724]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   41.488642][  T724]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   41.488645][  T724]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   41.488646][  T724]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   41.488648][  T724]  ? 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)
[   41.488652][  T724]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   41.488654][  T724]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   41.488656][  T724]  vprintk_emit (kernel/printk/printk.c:2479)
[   41.488660][  T724]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   41.488661][  T724]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   41.488663][  T724]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   41.488665][  T724]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   41.488669][  T724]  _printk (kernel/printk/printk.c:2504)
[   41.488672][  T724]  ? snapshot_read.cold (user.c:?)
[   41.488674][  T724]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   41.488677][  T724]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   41.488679][  T724]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   41.488681][  T724]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   41.488685][  T724]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   41.488688][  T724]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   41.488690][  T724]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   41.488693][  T724]  ? netdev_notice (net/core/dev.c:13194)
[   41.488695][  T724]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   41.488698][  T724]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   41.488701][  T724]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   41.488704][  T724]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   41.488706][  T724]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   41.488709][  T724]  ? netif_set_mtu_ext (net/core/dev.c:2350 net/core/dev.c:9952)
[   41.488713][  T724]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   41.488717][  T724]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   41.488722][  T724]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   41.488726][  T724]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   41.488729][  T724]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   41.488730][  T724]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   41.488732][  T724]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   41.488736][  T724]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   41.488738][  T724]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   41.488739][  T724]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   41.488742][  T724]  ? kasan_save_stack (mm/kasan/common.c:58)
[   41.488744][  T724]  ? kasan_save_stack (mm/kasan/common.c:57)
[   41.488745][  T724]  ? kasan_save_track (mm/kasan/common.c:78)
[   41.488746][  T724]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   41.488748][  T724]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   41.488750][  T724]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   41.488753][  T724]  ? ___sys_sendmsg (net/socket.c:2758)
[   41.488757][  T724]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   41.488759][  T724]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   41.488761][  T724]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   41.488763][  T724]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   41.488764][  T724]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   41.488765][  T724]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   41.488767][  T724]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   41.488769][  T724]  ? __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)
[   41.488772][  T724]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   41.488774][  T724]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   41.488777][  T724]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   41.488778][  T724]  ? nla_get_range_signed (lib/nlattr.c:270)
[   41.488783][  T724]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   41.488785][  T724]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   41.488790][  T724]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   41.488796][  T724]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   41.488797][  T724]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   41.488802][  T724]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   41.488804][  T724]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   41.488806][  T724]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   41.488807][  T724]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   41.488811][  T724]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   41.488813][  T724]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   41.488816][  T724]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   41.488817][  T724]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   41.488822][  T724]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   41.488823][  T724]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   41.488827][  T724]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   41.488830][  T724]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   41.488833][  T724]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   41.488839][  T724]  ? 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))
[   41.488841][  T724]  ? 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))
[   41.488845][  T724]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   41.488849][  T724]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   41.488852][  T724]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   41.488856][  T724]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   41.488860][  T724]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   41.488863][  T724]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   41.488865][  T724]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   41.488870][  T724]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   41.488873][  T724]  ____sys_sendmsg (net/socket.c:2713)
[   41.488880][  T724]  ? copy_msghdr_from_user (net/socket.c:2650)
[   41.488883][  T724]  ? sock_write_iter (net/socket.c:1269)
[   41.488884][  T724]  ? move_addr_to_kernel (net/socket.c:258)
[   41.488891][  T724]  ___sys_sendmsg (net/socket.c:2767)
[   41.488894][  T724]  ? copy_msghdr_from_user (net/socket.c:2619)
[   41.488909][  T724]  __sys_sendmsg (net/socket.c:2799)
[   41.488912][  T724]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   41.488918][  T724]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   41.488921][  T724]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   41.488924][  T724]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   41.488927][  T724]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   41.488929][  T724] RIP: 0033:0x7f92d908254e
[   41.488933][  T724] 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
[   41.488935][  T724] RSP: 002b:00007fff89882120 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   41.488938][  T724] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007f92d908254e
[   41.488939][  T724] RDX: 0000000000000000 RSI: 00007fff898821d0 RDI: 0000000000000005
[   41.488940][  T724] RBP: 00007fff89882130 R08: 0000000000000000 R09: 0000000000000000
[   41.488941][  T724] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91855d
[   41.488942][  T724] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fff89882890
| [   44.493162][  T819] softirqs last disabled at (37086): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   44.493164][  T819] Preemption disabled at:
| [   44.493165][  T819] vprintk_emit (kernel/printk/printk.c:2471)
| [   44.493173][  T819] Tainted: [W]=WARN
[   44.493174][  T819] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   44.493176][  T819] Call Trace:
[   44.493177][  T819]  <TASK>
[   44.493179][  T819]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   44.493185][  T819]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   44.493187][  T819]  __might_resched.cold (kernel/sched/core.c:9234)
[   44.493191][  T819]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   44.493195][  T819]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   44.493200][  T819]  __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))
[   44.493202][  T819]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   44.493208][  T819]  ? 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)
[   44.493211][  T819]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   44.493215][  T819]  put_chars (drivers/char/virtio_console.c:1176)
[   44.493217][  T819]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   44.493223][  T819]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   44.493231][  T819]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   44.493234][  T819]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   44.493239][  T819]  console_emit_next_record (kernel/printk/printk.c:3183)
[   44.493243][  T819]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   44.493245][  T819]  ? 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))
[   44.493248][  T819]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   44.493251][  T819]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   44.493255][  T819]  console_flush_one_record (kernel/printk/printk.c:3268)
[   44.493259][  T819]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   44.493261][  T819]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   44.493267][  T819]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   44.493270][  T819]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   44.493272][  T819]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   44.493273][  T819]  ? 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)
[   44.493277][  T819]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   44.493279][  T819]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   44.493282][  T819]  vprintk_emit (kernel/printk/printk.c:2479)
[   44.493285][  T819]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   44.493288][  T819]  ? _mutex_trylock_nest_lock (kernel/locking/mutex.c:1227 (discriminator 6))
[   44.493293][  T819]  _printk (kernel/printk/printk.c:2504)
[   44.493297][  T819]  ? snapshot_read.cold (user.c:?)
[   44.493298][  T819]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   44.493301][  T819]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   44.493304][  T819]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   44.493306][  T819]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   44.493310][  T819]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   44.493313][  T819]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   44.493315][  T819]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   44.493318][  T819]  ? netdev_notice (net/core/dev.c:13194)
[   44.493321][  T819]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   44.493324][  T819]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   44.493326][  T819]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   44.493330][  T819]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   44.493332][  T819]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   44.493334][  T819]  ? register_netdev (net/core/dev.c:11618)
[   44.493336][  T819]  ? 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))
[   44.493341][  T819]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   44.493343][  T819]  ? __kernel_text_address (kernel/extable.c:79)
[   44.493346][  T819]  ? write_profile (profile.c:?)
[   44.493350][  T819]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   44.493356][  T819]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   44.493359][  T819]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   44.493362][  T819]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   44.493363][  T819]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   44.493368][  T819]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   44.493371][  T819]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   44.493373][  T819]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   44.493375][  T819]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   44.493377][  T819]  ? kasan_save_stack (mm/kasan/common.c:58)
[   44.493379][  T819]  ? kasan_save_stack (mm/kasan/common.c:57)
[   44.493381][  T819]  ? kasan_save_track (mm/kasan/common.c:78)
[   44.493382][  T819]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   44.493384][  T819]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   44.493386][  T819]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   44.493389][  T819]  ? ___sys_sendmsg (net/socket.c:2758)
[   44.493393][  T819]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   44.493395][  T819]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   44.493398][  T819]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   44.493399][  T819]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   44.493401][  T819]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   44.493402][  T819]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   44.493404][  T819]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   44.493406][  T819]  ? __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)
[   44.493408][  T819]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   44.493409][  T819]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   44.493413][  T819]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   44.493414][  T819]  ? nla_get_range_signed (lib/nlattr.c:270)
[   44.493419][  T819]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   44.493421][  T819]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   44.493426][  T819]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   44.493432][  T819]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   44.493434][  T819]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   44.493438][  T819]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   44.493440][  T819]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   44.493442][  T819]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   44.493444][  T819]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   44.493448][  T819]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   44.493450][  T819]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   44.493453][  T819]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   44.493454][  T819]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   44.493459][  T819]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   44.493461][  T819]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   44.493464][  T819]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   44.493467][  T819]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   44.493470][  T819]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   44.493477][  T819]  ? 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))
[   44.493479][  T819]  ? 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))
[   44.493483][  T819]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   44.493487][  T819]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   44.493490][  T819]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   44.493494][  T819]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   44.493498][  T819]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   44.493502][  T819]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   44.493504][  T819]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   44.493509][  T819]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   44.493512][  T819]  ____sys_sendmsg (net/socket.c:2713)
[   44.493514][  T819]  ? copy_msghdr_from_user (net/socket.c:2650)
[   44.493517][  T819]  ? sock_write_iter (net/socket.c:1269)
[   44.493518][  T819]  ? move_addr_to_kernel (net/socket.c:258)
[   44.493526][  T819]  ___sys_sendmsg (net/socket.c:2767)
[   44.493529][  T819]  ? copy_msghdr_from_user (net/socket.c:2619)
[   44.493545][  T819]  __sys_sendmsg (net/socket.c:2799)
[   44.493548][  T819]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   44.493554][  T819]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   44.493557][  T819]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   44.493560][  T819]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   44.493563][  T819]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   44.493565][  T819] RIP: 0033:0x7f819139354e
[   44.493569][  T819] 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
[   44.493571][  T819] RSP: 002b:00007ffe5a987f70 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   44.493574][  T819] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007f819139354e
[   44.493575][  T819] RDX: 0000000000000000 RSI: 00007ffe5a988020 RDI: 0000000000000005
[   44.493576][  T819] RBP: 00007ffe5a987f80 R08: 0000000000000000 R09: 0000000000000000
[   44.493577][  T819] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a918560
[   44.493578][  T819] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffe5a9886e0
| [   52.437204][  T921] softirqs last disabled at (41222): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   52.437207][  T921] Preemption disabled at:
| [   52.437208][  T921] vprintk_emit (kernel/printk/printk.c:2471)
| [   52.437216][  T921] Tainted: [W]=WARN
[   52.437217][  T921] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   52.437219][  T921] Call Trace:
[   52.437220][  T921]  <TASK>
[   52.437222][  T921]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   52.437228][  T921]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   52.437230][  T921]  __might_resched.cold (kernel/sched/core.c:9234)
[   52.437235][  T921]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   52.437239][  T921]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   52.437243][  T921]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   52.437245][  T921]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   52.437252][  T921]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   52.437255][  T921]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   52.437259][  T921]  put_chars (drivers/char/virtio_console.c:1176)
[   52.437262][  T921]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   52.437268][  T921]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   52.437276][  T921]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   52.437279][  T921]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   52.437284][  T921]  console_emit_next_record (kernel/printk/printk.c:3183)
[   52.437288][  T921]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   52.437290][  T921]  ? 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))
[   52.437293][  T921]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   52.437296][  T921]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   52.437300][  T921]  console_flush_one_record (kernel/printk/printk.c:3268)
[   52.437305][  T921]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   52.437307][  T921]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   52.437312][  T921]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   52.437315][  T921]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   52.437317][  T921]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   52.437319][  T921]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   52.437322][  T921]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   52.437324][  T921]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   52.437327][  T921]  vprintk_emit (kernel/printk/printk.c:2479)
[   52.437330][  T921]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   52.437333][  T921]  ? _mutex_trylock_nest_lock (kernel/locking/mutex.c:1227 (discriminator 6))
[   52.437338][  T921]  _printk (kernel/printk/printk.c:2504)
[   52.437342][  T921]  ? snapshot_read.cold (user.c:?)
[   52.437344][  T921]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   52.437346][  T921]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   52.437349][  T921]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   52.437351][  T921]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   52.437355][  T921]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   52.437358][  T921]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   52.437360][  T921]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   52.437363][  T921]  ? netdev_notice (net/core/dev.c:13194)
[   52.437369][  T921]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   52.437372][  T921]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   52.437375][  T921]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   52.437379][  T921]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   52.437381][  T921]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   52.437383][  T921]  ? register_netdev (net/core/dev.c:11618)
[   52.437385][  T921]  ? 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))
[   52.437390][  T921]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   52.437393][  T921]  ? __kernel_text_address (kernel/extable.c:79)
[   52.437395][  T921]  ? write_profile (profile.c:?)
[   52.437399][  T921]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   52.437405][  T921]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   52.437409][  T921]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   52.437411][  T921]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   52.437412][  T921]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   52.437414][  T921]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   52.437417][  T921]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   52.437419][  T921]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   52.437421][  T921]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   52.437424][  T921]  ? kasan_save_stack (mm/kasan/common.c:58)
[   52.437426][  T921]  ? kasan_save_stack (mm/kasan/common.c:57)
[   52.437427][  T921]  ? kasan_save_track (mm/kasan/common.c:78)
[   52.437428][  T921]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   52.437430][  T921]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   52.437432][  T921]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   52.437435][  T921]  ? ___sys_sendmsg (net/socket.c:2758)
[   52.437439][  T921]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   52.437441][  T921]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   52.437444][  T921]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   52.437445][  T921]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   52.437447][  T921]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   52.437448][  T921]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   52.437450][  T921]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   52.437452][  T921]  ? __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)
[   52.437453][  T921]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   52.437455][  T921]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   52.437459][  T921]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   52.437460][  T921]  ? nla_get_range_signed (lib/nlattr.c:270)
[   52.437465][  T921]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   52.437467][  T921]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   52.437473][  T921]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   52.437478][  T921]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   52.437480][  T921]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   52.437484][  T921]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   52.437486][  T921]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   52.437488][  T921]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   52.437490][  T921]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   52.437494][  T921]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   52.437496][  T921]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   52.437499][  T921]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   52.437501][  T921]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   52.437505][  T921]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   52.437507][  T921]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   52.437511][  T921]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   52.437514][  T921]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   52.437517][  T921]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   52.437523][  T921]  ? 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))
[   52.437525][  T921]  ? 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))
[   52.437530][  T921]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   52.437534][  T921]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   52.437536][  T921]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   52.437541][  T921]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   52.437545][  T921]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   52.437549][  T921]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   52.437550][  T921]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   52.437556][  T921]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   52.437558][  T921]  ____sys_sendmsg (net/socket.c:2713)
[   52.437561][  T921]  ? copy_msghdr_from_user (net/socket.c:2650)
[   52.437563][  T921]  ? sock_write_iter (net/socket.c:1269)
[   52.437565][  T921]  ? move_addr_to_kernel (net/socket.c:258)
[   52.437572][  T921]  ___sys_sendmsg (net/socket.c:2767)
[   52.437575][  T921]  ? copy_msghdr_from_user (net/socket.c:2619)
[   52.437591][  T921]  __sys_sendmsg (net/socket.c:2799)
[   52.437594][  T921]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   52.437601][  T921]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   52.437604][  T921]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   52.437607][  T921]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   52.437610][  T921]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   52.437612][  T921] RIP: 0033:0x7fd9970ee54e
[   52.437616][  T921] 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
[   52.437617][  T921] RSP: 002b:00007ffc35de4b60 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   52.437620][  T921] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007fd9970ee54e
[   52.437622][  T921] RDX: 0000000000000000 RSI: 00007ffc35de4c10 RDI: 0000000000000005
[   52.437623][  T921] RBP: 00007ffc35de4b70 R08: 0000000000000000 R09: 0000000000000000
[   52.437623][  T921] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a918568
[   52.437624][  T921] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffc35de52d0
| [   60.187123][ T1030] softirqs last disabled at (46660): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   60.187125][ T1030] Preemption disabled at:
| [   60.187126][ T1030] vprintk_emit (kernel/printk/printk.c:2471)
| [   60.187135][ T1030] Tainted: [W]=WARN
[   60.187135][ T1030] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   60.187137][ T1030] Call Trace:
[   60.187139][ T1030]  <TASK>
[   60.187140][ T1030]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   60.187146][ T1030]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   60.187148][ T1030]  __might_resched.cold (kernel/sched/core.c:9234)
[   60.187152][ T1030]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   60.187157][ 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)
[   60.187161][ 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))
[   60.187163][ T1030]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   60.187169][ 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)
[   60.187172][ T1030]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   60.187176][ T1030]  put_chars (drivers/char/virtio_console.c:1176)
[   60.187178][ T1030]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   60.187184][ T1030]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   60.187191][ T1030]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   60.187195][ T1030]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   60.187199][ T1030]  console_emit_next_record (kernel/printk/printk.c:3183)
[   60.187203][ T1030]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   60.187205][ 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))
[   60.187208][ T1030]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   60.187211][ T1030]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   60.187214][ T1030]  console_flush_one_record (kernel/printk/printk.c:3268)
[   60.187218][ T1030]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   60.187220][ T1030]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   60.187225][ T1030]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   60.187228][ T1030]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   60.187230][ T1030]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   60.187232][ 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)
[   60.187235][ T1030]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   60.187237][ T1030]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   60.187239][ T1030]  vprintk_emit (kernel/printk/printk.c:2479)
[   60.187242][ T1030]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   60.187245][ T1030]  ? _mutex_trylock_nest_lock (kernel/locking/mutex.c:1227 (discriminator 6))
[   60.187250][ T1030]  _printk (kernel/printk/printk.c:2504)
[   60.187254][ T1030]  ? snapshot_read.cold (user.c:?)
[   60.187256][ T1030]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   60.187258][ T1030]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   60.187261][ T1030]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   60.187263][ T1030]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   60.187267][ T1030]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   60.187269][ T1030]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   60.187272][ T1030]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   60.187274][ T1030]  ? netdev_notice (net/core/dev.c:13194)
[   60.187277][ T1030]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   60.187280][ T1030]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   60.187283][ T1030]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   60.187286][ T1030]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   60.187288][ T1030]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   60.187290][ T1030]  ? register_netdev (net/core/dev.c:11618)
[   60.187291][ 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))
[   60.187297][ T1030]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   60.187299][ T1030]  ? __kernel_text_address (kernel/extable.c:79)
[   60.187302][ T1030]  ? write_profile (profile.c:?)
[   60.187306][ T1030]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   60.187311][ T1030]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   60.187315][ T1030]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   60.187317][ T1030]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   60.187318][ T1030]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   60.187320][ T1030]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   60.187323][ T1030]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   60.187325][ T1030]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   60.187327][ T1030]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   60.187329][ T1030]  ? kasan_save_stack (mm/kasan/common.c:58)
[   60.187331][ T1030]  ? kasan_save_stack (mm/kasan/common.c:57)
[   60.187332][ T1030]  ? kasan_save_track (mm/kasan/common.c:78)
[   60.187334][ T1030]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   60.187336][ T1030]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   60.187338][ T1030]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   60.187340][ T1030]  ? ___sys_sendmsg (net/socket.c:2758)
[   60.187344][ T1030]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   60.187346][ T1030]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   60.187348][ T1030]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   60.187350][ T1030]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   60.187352][ T1030]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   60.187353][ T1030]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   60.187354][ T1030]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   60.187356][ 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)
[   60.187358][ T1030]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   60.187360][ T1030]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   60.187363][ T1030]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   60.187364][ T1030]  ? nla_get_range_signed (lib/nlattr.c:270)
[   60.187372][ T1030]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   60.187374][ T1030]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   60.187379][ T1030]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   60.187384][ T1030]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   60.187386][ T1030]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   60.187390][ T1030]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   60.187392][ T1030]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   60.187394][ T1030]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   60.187396][ T1030]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   60.187400][ T1030]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   60.187402][ T1030]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   60.187405][ T1030]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   60.187406][ T1030]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   60.187410][ T1030]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   60.187412][ T1030]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   60.187415][ T1030]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   60.187419][ T1030]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   60.187421][ T1030]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   60.187428][ 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))
[   60.187430][ 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))
[   60.187434][ T1030]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   60.187438][ T1030]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   60.187440][ T1030]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   60.187444][ T1030]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   60.187448][ T1030]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   60.187452][ T1030]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   60.187453][ T1030]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   60.187459][ T1030]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   60.187462][ T1030]  ____sys_sendmsg (net/socket.c:2713)
[   60.187464][ T1030]  ? copy_msghdr_from_user (net/socket.c:2650)
[   60.187466][ T1030]  ? sock_write_iter (net/socket.c:1269)
[   60.187468][ T1030]  ? move_addr_to_kernel (net/socket.c:258)
[   60.187475][ T1030]  ___sys_sendmsg (net/socket.c:2767)
[   60.187478][ T1030]  ? copy_msghdr_from_user (net/socket.c:2619)
[   60.187493][ T1030]  __sys_sendmsg (net/socket.c:2799)
[   60.187496][ T1030]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   60.187502][ T1030]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   60.187505][ T1030]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   60.187508][ T1030]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   60.187510][ T1030]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   60.187513][ T1030] RIP: 0033:0x7f80fc47054e
[   60.187516][ 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
[   60.187518][ T1030] RSP: 002b:00007ffd036cb440 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   60.187521][ T1030] RAX: ffffffffffffffda RBX: 0000000000000005 RCX: 00007f80fc47054e
[   60.187522][ T1030] RDX: 0000000000000000 RSI: 00007ffd036cb4f0 RDI: 0000000000000005
[   60.187523][ T1030] RBP: 00007ffd036cb450 R08: 0000000000000000 R09: 0000000000000000
[   60.187524][ T1030] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a918570
[   60.187524][ T1030] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffd036cbbb0
| [   66.152245][ T1092] softirqs last disabled at (38938): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   66.152247][ T1092] Preemption disabled at:
| [   66.152248][ T1092] vprintk_emit (kernel/printk/printk.c:2471)
| [   66.152256][ T1092] Tainted: [W]=WARN
[   66.152257][ T1092] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   66.152258][ T1092] Call Trace:
[   66.152260][ T1092]  <TASK>
[   66.152261][ T1092]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   66.152267][ T1092]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   66.152269][ T1092]  __might_resched.cold (kernel/sched/core.c:9234)
[   66.152273][ T1092]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   66.152278][ 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)
[   66.152282][ 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))
[   66.152284][ T1092]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   66.152290][ 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)
[   66.152293][ T1092]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   66.152296][ T1092]  put_chars (drivers/char/virtio_console.c:1176)
[   66.152298][ T1092]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   66.152305][ T1092]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   66.152312][ T1092]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   66.152315][ T1092]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   66.152320][ T1092]  console_emit_next_record (kernel/printk/printk.c:3183)
[   66.152323][ T1092]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   66.152325][ 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))
[   66.152328][ T1092]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   66.152331][ T1092]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   66.152335][ T1092]  console_flush_one_record (kernel/printk/printk.c:3268)
[   66.152339][ T1092]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   66.152340][ T1092]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   66.152346][ T1092]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   66.152348][ T1092]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   66.152350][ T1092]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   66.152352][ 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)
[   66.152355][ T1092]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   66.152357][ T1092]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   66.152360][ T1092]  vprintk_emit (kernel/printk/printk.c:2479)
[   66.152363][ T1092]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   66.152365][ T1092]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   66.152369][ T1092]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   66.152370][ T1092]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   66.152374][ T1092]  _printk (kernel/printk/printk.c:2504)
[   66.152378][ T1092]  ? snapshot_read.cold (user.c:?)
[   66.152380][ T1092]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   66.152382][ T1092]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   66.152385][ T1092]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   66.152387][ T1092]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   66.152391][ T1092]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   66.152394][ T1092]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   66.152396][ T1092]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   66.152398][ T1092]  ? netdev_notice (net/core/dev.c:13194)
[   66.152401][ T1092]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   66.152404][ T1092]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   66.152406][ T1092]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   66.152410][ T1092]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   66.152412][ T1092]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   66.152414][ T1092]  ? netif_set_mtu_ext (net/core/dev.c:2350 net/core/dev.c:9952)
[   66.152418][ T1092]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   66.152422][ T1092]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   66.152428][ T1092]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   66.152431][ T1092]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   66.152434][ T1092]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   66.152436][ T1092]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   66.152438][ T1092]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   66.152441][ T1092]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   66.152443][ T1092]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   66.152445][ T1092]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   66.152447][ T1092]  ? kasan_save_stack (mm/kasan/common.c:58)
[   66.152449][ T1092]  ? kasan_save_stack (mm/kasan/common.c:57)
[   66.152450][ T1092]  ? kasan_save_track (mm/kasan/common.c:78)
[   66.152451][ T1092]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   66.152453][ T1092]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   66.152455][ T1092]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   66.152458][ T1092]  ? ___sys_sendmsg (net/socket.c:2758)
[   66.152462][ T1092]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   66.152464][ T1092]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   66.152466][ T1092]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   66.152468][ T1092]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   66.152470][ T1092]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   66.152471][ T1092]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   66.152472][ T1092]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   66.152475][ 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)
[   66.152477][ T1092]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   66.152479][ T1092]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   66.152482][ T1092]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   66.152483][ T1092]  ? nla_get_range_signed (lib/nlattr.c:270)
[   66.152488][ T1092]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   66.152490][ T1092]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   66.152495][ T1092]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   66.152500][ T1092]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   66.152502][ T1092]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   66.152507][ T1092]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   66.152509][ T1092]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   66.152510][ T1092]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   66.152512][ T1092]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   66.152516][ T1092]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   66.152518][ T1092]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   66.152521][ T1092]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   66.152522][ T1092]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   66.152527][ T1092]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   66.152528][ T1092]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   66.152532][ T1092]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   66.152535][ T1092]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   66.152538][ T1092]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   66.152544][ 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))
[   66.152546][ 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))
[   66.152550][ T1092]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   66.152554][ T1092]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   66.152557][ T1092]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   66.152561][ T1092]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   66.152564][ T1092]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   66.152568][ T1092]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   66.152570][ T1092]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   66.152575][ T1092]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   66.152578][ T1092]  ____sys_sendmsg (net/socket.c:2713)
[   66.152580][ T1092]  ? copy_msghdr_from_user (net/socket.c:2650)
[   66.152582][ T1092]  ? sock_write_iter (net/socket.c:1269)
[   66.152584][ T1092]  ? move_addr_to_kernel (net/socket.c:258)
[   66.152591][ T1092]  ___sys_sendmsg (net/socket.c:2767)
[   66.152594][ T1092]  ? copy_msghdr_from_user (net/socket.c:2619)
[   66.152609][ T1092]  __sys_sendmsg (net/socket.c:2799)
[   66.152612][ T1092]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   66.152618][ T1092]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   66.152621][ T1092]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   66.152624][ T1092]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   66.152627][ T1092]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   66.152629][ T1092] RIP: 0033:0x7fcbc0ec154e
[   66.152633][ 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
[   66.152634][ T1092] RSP: 002b:00007ffe4d534c70 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   66.152637][ T1092] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007fcbc0ec154e
[   66.152638][ T1092] RDX: 0000000000000000 RSI: 00007ffe4d534d20 RDI: 0000000000000005
[   66.152639][ T1092] RBP: 00007ffe4d534c80 R08: 0000000000000000 R09: 0000000000000000
[   66.152640][ T1092] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a918576
[   66.152641][ T1092] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffe4d5353e0
| [   67.509571][ T1141] softirqs last disabled at (39474): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   67.509575][ T1141] Preemption disabled at:
| [   67.509576][ T1141] vprintk_emit (kernel/printk/printk.c:2471)
| [   67.509587][ T1141] Tainted: [W]=WARN
[   67.509589][ T1141] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   67.509591][ T1141] Call Trace:
[   67.509593][ T1141]  <TASK>
[   67.509596][ T1141]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   67.509604][ T1141]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   67.509606][ T1141]  __might_resched.cold (kernel/sched/core.c:9234)
[   67.509612][ T1141]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   67.509618][ 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)
[   67.509625][ 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))
[   67.509628][ T1141]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   67.509638][ 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)
[   67.509642][ T1141]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   67.509648][ T1141]  put_chars (drivers/char/virtio_console.c:1176)
[   67.509652][ T1141]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   67.509664][ T1141]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   67.509676][ T1141]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   67.509681][ T1141]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   67.509688][ T1141]  console_emit_next_record (kernel/printk/printk.c:3183)
[   67.509695][ T1141]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   67.509698][ 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))
[   67.509703][ T1141]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   67.509707][ T1141]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   67.509714][ T1141]  console_flush_one_record (kernel/printk/printk.c:3268)
[   67.509721][ T1141]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   67.509724][ T1141]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   67.509733][ T1141]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   67.509738][ T1141]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   67.509741][ T1141]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   67.509744][ 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)
[   67.509750][ T1141]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   67.509753][ T1141]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   67.509758][ T1141]  vprintk_emit (kernel/printk/printk.c:2479)
[   67.509763][ T1141]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   67.509766][ T1141]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   67.509769][ T1141]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   67.509772][ T1141]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   67.509779][ T1141]  _printk (kernel/printk/printk.c:2504)
[   67.509784][ T1141]  ? snapshot_read.cold (user.c:?)
[   67.509786][ T1141]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   67.509791][ T1141]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   67.509795][ T1141]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   67.509798][ T1141]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   67.509803][ T1141]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   67.509808][ T1141]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   67.509812][ T1141]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   67.509816][ T1141]  ? netdev_notice (net/core/dev.c:13194)
[   67.509821][ T1141]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   67.509825][ T1141]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   67.509830][ T1141]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   67.509835][ T1141]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   67.509839][ T1141]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   67.509844][ T1141]  ? netif_set_mtu_ext (net/core/dev.c:2350 net/core/dev.c:9952)
[   67.509850][ T1141]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   67.509858][ T1141]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   67.509867][ T1141]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   67.509873][ T1141]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   67.509878][ T1141]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   67.509880][ T1141]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   67.509883][ T1141]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   67.509888][ T1141]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   67.509891][ T1141]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   67.509894][ T1141]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   67.509898][ T1141]  ? kasan_save_stack (mm/kasan/common.c:58)
[   67.509901][ T1141]  ? kasan_save_stack (mm/kasan/common.c:57)
[   67.509903][ T1141]  ? kasan_save_track (mm/kasan/common.c:78)
[   67.509905][ T1141]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   67.509909][ T1141]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   67.509912][ T1141]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   67.509916][ T1141]  ? ___sys_sendmsg (net/socket.c:2758)
[   67.509922][ T1141]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   67.509925][ T1141]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   67.509930][ T1141]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   67.509933][ T1141]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   67.509935][ T1141]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   67.509937][ T1141]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   67.509940][ T1141]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   67.509944][ 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)
[   67.509948][ T1141]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   67.509951][ T1141]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   67.509957][ T1141]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   67.509959][ T1141]  ? nla_get_range_signed (lib/nlattr.c:270)
[   67.509967][ T1141]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   67.509975][ T1141]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   67.509984][ T1141]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   67.509994][ T1141]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   67.509998][ T1141]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   67.510006][ T1141]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   67.510009][ T1141]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   67.510012][ T1141]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   67.510015][ T1141]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   67.510022][ T1141]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   67.510025][ T1141]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   67.510031][ T1141]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   67.510033][ T1141]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   67.510041][ T1141]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   67.510044][ T1141]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   67.510050][ T1141]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   67.510055][ T1141]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   67.510060][ T1141]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   67.510071][ 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))
[   67.510074][ 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))
[   67.510082][ T1141]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   67.510089][ T1141]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   67.510093][ T1141]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   67.510101][ T1141]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   67.510108][ T1141]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   67.510114][ T1141]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   67.510117][ T1141]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   67.510125][ T1141]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   67.510130][ T1141]  ____sys_sendmsg (net/socket.c:2713)
[   67.510134][ T1141]  ? copy_msghdr_from_user (net/socket.c:2650)
[   67.510137][ T1141]  ? sock_write_iter (net/socket.c:1269)
[   67.510140][ T1141]  ? move_addr_to_kernel (net/socket.c:258)
[   67.510153][ T1141]  ___sys_sendmsg (net/socket.c:2767)
[   67.510158][ T1141]  ? copy_msghdr_from_user (net/socket.c:2619)
[   67.510188][ T1141]  __sys_sendmsg (net/socket.c:2799)
[   67.510193][ T1141]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   67.510204][ T1141]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   67.510210][ T1141]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   67.510213][ T1141]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   67.510218][ T1141]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   67.510222][ T1141] RIP: 0033:0x7efe6f4d254e
[   67.510227][ 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
[   67.510229][ T1141] RSP: 002b:00007ffdd6c4f590 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   67.510233][ T1141] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007efe6f4d254e
[   67.510235][ T1141] RDX: 0000000000000000 RSI: 00007ffdd6c4f640 RDI: 0000000000000005
[   67.510237][ T1141] RBP: 00007ffdd6c4f5a0 R08: 0000000000000000 R09: 0000000000000000
[   67.510238][ T1141] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a918577
[   67.510239][ T1141] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffdd6c4fd00
| [   69.014711][ T1190] softirqs last disabled at (43626): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   69.014713][ T1190] Preemption disabled at:
| [   69.014714][ T1190] vprintk_emit (kernel/printk/printk.c:2471)
| [   69.014722][ T1190] Tainted: [W]=WARN
[   69.014723][ T1190] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   69.014725][ T1190] Call Trace:
[   69.014726][ T1190]  <TASK>
[   69.014728][ T1190]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   69.014734][ T1190]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   69.014735][ T1190]  __might_resched.cold (kernel/sched/core.c:9234)
[   69.014740][ T1190]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   69.014744][ 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)
[   69.014748][ 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))
[   69.014750][ T1190]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   69.014756][ 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)
[   69.014759][ T1190]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   69.014762][ T1190]  put_chars (drivers/char/virtio_console.c:1176)
[   69.014765][ T1190]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   69.014771][ T1190]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   69.014779][ T1190]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   69.014782][ T1190]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   69.014786][ T1190]  console_emit_next_record (kernel/printk/printk.c:3183)
[   69.014790][ T1190]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   69.014792][ 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))
[   69.014795][ T1190]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   69.014798][ T1190]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   69.014802][ T1190]  console_flush_one_record (kernel/printk/printk.c:3268)
[   69.014806][ T1190]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   69.014808][ T1190]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   69.014813][ T1190]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   69.014815][ T1190]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   69.014817][ T1190]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   69.014819][ 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)
[   69.014822][ T1190]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   69.014824][ T1190]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   69.014827][ T1190]  vprintk_emit (kernel/printk/printk.c:2479)
[   69.014830][ T1190]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   69.014832][ T1190]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   69.014834][ T1190]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   69.014835][ T1190]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   69.014839][ T1190]  _printk (kernel/printk/printk.c:2504)
[   69.014843][ T1190]  ? snapshot_read.cold (user.c:?)
[   69.014844][ T1190]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   69.014847][ T1190]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   69.014850][ T1190]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   69.014852][ T1190]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   69.014856][ T1190]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   69.014859][ T1190]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   69.014861][ T1190]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   69.014864][ T1190]  ? netdev_notice (net/core/dev.c:13194)
[   69.014866][ T1190]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   69.014869][ T1190]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   69.014871][ T1190]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   69.014875][ T1190]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   69.014877][ T1190]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   69.014880][ T1190]  ? netif_set_mtu_ext (net/core/dev.c:2350 net/core/dev.c:9952)
[   69.014883][ T1190]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   69.014887][ T1190]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   69.014893][ T1190]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   69.014897][ T1190]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   69.014900][ T1190]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   69.014902][ T1190]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   69.014903][ T1190]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   69.014907][ T1190]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   69.014909][ T1190]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   69.014911][ T1190]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   69.014913][ T1190]  ? kasan_save_stack (mm/kasan/common.c:58)
[   69.014915][ T1190]  ? kasan_save_stack (mm/kasan/common.c:57)
[   69.014916][ T1190]  ? kasan_save_track (mm/kasan/common.c:78)
[   69.014917][ T1190]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   69.014920][ T1190]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   69.014921][ T1190]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   69.014924][ T1190]  ? ___sys_sendmsg (net/socket.c:2758)
[   69.014928][ T1190]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   69.014930][ T1190]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   69.014933][ T1190]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   69.014934][ T1190]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   69.014936][ T1190]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   69.014937][ T1190]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   69.014939][ T1190]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   69.014941][ 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)
[   69.014943][ T1190]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   69.014945][ T1190]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   69.014949][ T1190]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   69.014950][ T1190]  ? nla_get_range_signed (lib/nlattr.c:270)
[   69.014955][ T1190]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   69.014957][ T1190]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   69.014962][ T1190]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   69.014967][ T1190]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   69.014969][ T1190]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   69.014973][ T1190]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   69.014975][ T1190]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   69.014983][ T1190]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   69.014985][ T1190]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   69.014988][ T1190]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   69.014990][ T1190]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   69.014993][ T1190]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   69.014995][ T1190]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   69.014999][ T1190]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   69.015001][ T1190]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   69.015004][ T1190]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   69.015008][ T1190]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   69.015010][ T1190]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   69.015017][ 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))
[   69.015019][ 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))
[   69.015023][ T1190]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   69.015027][ T1190]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   69.015029][ T1190]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   69.015033][ T1190]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   69.015037][ T1190]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   69.015041][ T1190]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   69.015043][ T1190]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   69.015048][ T1190]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   69.015051][ T1190]  ____sys_sendmsg (net/socket.c:2713)
[   69.015053][ T1190]  ? copy_msghdr_from_user (net/socket.c:2650)
[   69.015055][ T1190]  ? sock_write_iter (net/socket.c:1269)
[   69.015057][ T1190]  ? move_addr_to_kernel (net/socket.c:258)
[   69.015064][ T1190]  ___sys_sendmsg (net/socket.c:2767)
[   69.015067][ T1190]  ? copy_msghdr_from_user (net/socket.c:2619)
[   69.015082][ T1190]  __sys_sendmsg (net/socket.c:2799)
[   69.015085][ T1190]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   69.015091][ T1190]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   69.015094][ T1190]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   69.015097][ T1190]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   69.015100][ T1190]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   69.015102][ T1190] RIP: 0033:0x7f7764f9054e
[   69.015106][ 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
[   69.015108][ T1190] RSP: 002b:00007ffe4e52e330 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   69.015111][ T1190] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007f7764f9054e
[   69.015112][ T1190] RDX: 0000000000000000 RSI: 00007ffe4e52e3e0 RDI: 0000000000000005
[   69.015113][ T1190] RBP: 00007ffe4e52e340 R08: 0000000000000000 R09: 0000000000000000
[   69.015114][ T1190] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a918579
[   69.015115][ T1190] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffe4e52eaa0
| [   70.293141][ T1239] softirqs last disabled at (34790): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   70.293144][ T1239] Preemption disabled at:
| [   70.293144][ T1239] vprintk_emit (kernel/printk/printk.c:2471)
| [   70.293153][ T1239] Tainted: [W]=WARN
[   70.293153][ T1239] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   70.293155][ T1239] Call Trace:
[   70.293157][ T1239]  <TASK>
[   70.293158][ T1239]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   70.293165][ T1239]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   70.293166][ T1239]  __might_resched.cold (kernel/sched/core.c:9234)
[   70.293171][ T1239]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   70.293175][ 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)
[   70.293180][ 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))
[   70.293181][ T1239]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   70.293188][ 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)
[   70.293191][ T1239]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   70.293194][ T1239]  put_chars (drivers/char/virtio_console.c:1176)
[   70.293197][ T1239]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   70.293203][ T1239]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   70.293211][ T1239]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   70.293214][ T1239]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   70.293219][ T1239]  console_emit_next_record (kernel/printk/printk.c:3183)
[   70.293223][ T1239]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   70.293225][ 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))
[   70.293228][ T1239]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   70.293230][ T1239]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   70.293234][ T1239]  console_flush_one_record (kernel/printk/printk.c:3268)
[   70.293239][ T1239]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   70.293241][ T1239]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   70.293246][ T1239]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   70.293249][ T1239]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   70.293251][ T1239]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   70.293252][ 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)
[   70.293256][ T1239]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   70.293258][ T1239]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   70.293261][ T1239]  vprintk_emit (kernel/printk/printk.c:2479)
[   70.293264][ T1239]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   70.293266][ T1239]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   70.293268][ T1239]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   70.293269][ T1239]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   70.293273][ T1239]  _printk (kernel/printk/printk.c:2504)
[   70.293277][ T1239]  ? snapshot_read.cold (user.c:?)
[   70.293279][ T1239]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   70.293281][ T1239]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   70.293284][ T1239]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   70.293286][ T1239]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   70.293290][ T1239]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   70.293293][ T1239]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   70.293295][ T1239]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   70.293298][ T1239]  ? netdev_notice (net/core/dev.c:13194)
[   70.293301][ T1239]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   70.293304][ T1239]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   70.293306][ T1239]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   70.293310][ T1239]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   70.293312][ T1239]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   70.293315][ T1239]  ? netif_set_mtu_ext (net/core/dev.c:2350 net/core/dev.c:9952)
[   70.293319][ T1239]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   70.293323][ T1239]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   70.293329][ T1239]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   70.293332][ T1239]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   70.293336][ T1239]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   70.293337][ T1239]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   70.293339][ T1239]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   70.293342][ T1239]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   70.293344][ T1239]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   70.293346][ T1239]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   70.293348][ T1239]  ? kasan_save_stack (mm/kasan/common.c:58)
[   70.293350][ T1239]  ? kasan_save_stack (mm/kasan/common.c:57)
[   70.293351][ T1239]  ? kasan_save_track (mm/kasan/common.c:78)
[   70.293353][ T1239]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   70.293355][ T1239]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   70.293357][ T1239]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   70.293360][ T1239]  ? ___sys_sendmsg (net/socket.c:2758)
[   70.293363][ T1239]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   70.293368][ T1239]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   70.293371][ T1239]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   70.293373][ T1239]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   70.293374][ T1239]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   70.293375][ T1239]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   70.293377][ T1239]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   70.293379][ 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)
[   70.293382][ T1239]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   70.293384][ T1239]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   70.293388][ T1239]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   70.293389][ T1239]  ? nla_get_range_signed (lib/nlattr.c:270)
[   70.293394][ T1239]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   70.293396][ T1239]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   70.293401][ T1239]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   70.293407][ T1239]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   70.293409][ T1239]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   70.293413][ T1239]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   70.293415][ T1239]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   70.293417][ T1239]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   70.293419][ T1239]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   70.293423][ T1239]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   70.293425][ T1239]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   70.293428][ T1239]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   70.293429][ T1239]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   70.293434][ T1239]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   70.293436][ T1239]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   70.293439][ T1239]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   70.293442][ T1239]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   70.293445][ T1239]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   70.293452][ 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))
[   70.293454][ 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))
[   70.293458][ T1239]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   70.293463][ T1239]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   70.293465][ T1239]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   70.293469][ T1239]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   70.293473][ T1239]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   70.293477][ T1239]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   70.293479][ T1239]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   70.293484][ T1239]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   70.293487][ T1239]  ____sys_sendmsg (net/socket.c:2713)
[   70.293490][ T1239]  ? copy_msghdr_from_user (net/socket.c:2650)
[   70.293492][ T1239]  ? sock_write_iter (net/socket.c:1269)
[   70.293493][ T1239]  ? move_addr_to_kernel (net/socket.c:258)
[   70.293501][ T1239]  ___sys_sendmsg (net/socket.c:2767)
[   70.293504][ T1239]  ? copy_msghdr_from_user (net/socket.c:2619)
[   70.293520][ T1239]  __sys_sendmsg (net/socket.c:2799)
[   70.293523][ T1239]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   70.293529][ T1239]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   70.293533][ T1239]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   70.293536][ T1239]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   70.293539][ T1239]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   70.293541][ T1239] RIP: 0033:0x7f02d9b9254e
[   70.293545][ 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
[   70.293546][ T1239] RSP: 002b:00007ffccf670df0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   70.293549][ T1239] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007f02d9b9254e
[   70.293551][ T1239] RDX: 0000000000000000 RSI: 00007ffccf670ea0 RDI: 0000000000000005
[   70.293551][ T1239] RBP: 00007ffccf670e00 R08: 0000000000000000 R09: 0000000000000000
[   70.293552][ T1239] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91857a


Finger prints:
netlink_release:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print
br_device_event:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print
do_softirq:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars
netif_change_name:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars