======================================
| [   10.733211][  T271] softirqs last disabled at (20211): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   10.733213][  T271] Preemption disabled at:
| [   10.733214][  T271] 0x0
| [   10.733224][  T271] Tainted: [W]=WARN
[   10.733225][  T271] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.733227][  T271] Call Trace:
[   10.733229][  T271]  <TASK>
[   10.733230][  T271]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   10.733236][  T271]  __might_resched.cold (kernel/sched/core.c:9234)
[   10.733241][  T271]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   10.733245][  T271]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   10.733249][  T271]  __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))
[   10.733251][  T271]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.733258][  T271]  ? 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)
[   10.733261][  T271]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.733264][  T271]  put_chars (drivers/char/virtio_console.c:1176)
[   10.733266][  T271]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   10.733268][  T271]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   10.733271][  T271]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   10.733276][  T271]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   10.733284][  T271]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   10.733286][  T271]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.733288][  T271]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.733292][  T271]  console_emit_next_record (kernel/printk/printk.c:3183)
[   10.733296][  T271]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   10.733298][  T271]  ? 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))
[   10.733301][  T271]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.733302][  T271]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.733306][  T271]  console_flush_one_record (kernel/printk/printk.c:3268)
[   10.733310][  T271]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   10.733312][  T271]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.733317][  T271]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   10.733320][  T271]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   10.733322][  T271]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.733324][  T271]  ? 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)
[   10.733327][  T271]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   10.733329][  T271]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   10.733332][  T271]  vprintk_emit (kernel/printk/printk.c:2479)
[   10.733335][  T271]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   10.733338][  T271]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.733341][  T271]  _printk (kernel/printk/printk.c:2504)
[   10.733344][  T271]  ? snapshot_read.cold (user.c:?)
[   10.733347][  T271]  ? 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)
[   10.733349][  T271]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   10.733353][  T271]  ? 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)
[   10.733356][  T271]  do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4))
[   10.733360][  T271]  ? exit_notify (kernel/exit.c:780)
[   10.733361][  T271]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   10.733364][  T271]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.733367][  T271]  do_group_exit (kernel/exit.c:1151)
[   10.733370][  T271]  __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160)
[   10.733372][  T271]  x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232)
[   10.733375][  T271]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   10.733379][  T271]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   10.733382][  T271]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   10.733384][  T271] RIP: 0033:0x7f70943651b8
[   10.733386][  T271] Code: Unable to access opcode bytes at 0x7f709436518e.

Code starting with the faulting instruction
===========================================
[   10.733387][  T271] RSP: 002b:00007fffba84d6d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
[   10.733390][  T271] RAX: ffffffffffffffda RBX: 00007f7094495f88 RCX: 00007f70943651b8
[   10.733391][  T271] RDX: 00007f70940affc8 RSI: fffffffffffffeb8 RDI: 0000000000000000
[   10.733392][  T271] RBP: 00007fffba84d730 R08: 0000000000000000 R09: 0000000000000050
[   10.733393][  T271] R10: 00007fffba84d4f0 R11: 0000000000000246 R12: 0000000000000001
[   10.733394][  T271] R13: 0000000000000000 R14: 00007f7094494680 R15: 00007f7094495fa0
| [   22.310372][  T564] softirqs last disabled at (28568): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   22.310375][  T564] Preemption disabled at:
| [   22.310376][  T564] vprintk_emit (kernel/printk/printk.c:2471)
| [   22.310384][  T564] Tainted: [W]=WARN
[   22.310385][  T564] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   22.310386][  T564] Call Trace:
[   22.310388][  T564]  <TASK>
[   22.310390][  T564]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   22.310396][  T564]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   22.310397][  T564]  __might_resched.cold (kernel/sched/core.c:9234)
[   22.310402][  T564]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   22.310406][  T564]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   22.310410][  T564]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   22.310412][  T564]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   22.310419][  T564]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   22.310422][  T564]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   22.310425][  T564]  put_chars (drivers/char/virtio_console.c:1176)
[   22.310428][  T564]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   22.310429][  T564]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   22.310433][  T564]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   22.310438][  T564]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   22.310445][  T564]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   22.310448][  T564]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.310450][  T564]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   22.310454][  T564]  console_emit_next_record (kernel/printk/printk.c:3183)
[   22.310458][  T564]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   22.310460][  T564]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   22.310463][  T564]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.310465][  T564]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   22.310469][  T564]  console_flush_one_record (kernel/printk/printk.c:3268)
[   22.310473][  T564]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   22.310475][  T564]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.310480][  T564]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   22.310483][  T564]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   22.310485][  T564]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.310486][  T564]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   22.310490][  T564]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   22.310492][  T564]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   22.310495][  T564]  vprintk_emit (kernel/printk/printk.c:2479)
[   22.310498][  T564]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   22.310500][  T564]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   22.310501][  T564]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   22.310506][  T564]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   22.310509][  T564]  _printk (kernel/printk/printk.c:2504)
[   22.310513][  T564]  ? snapshot_read.cold (user.c:?)
[   22.310516][  T564]  ? br_multicast_flood (??:?)
[   22.310522][  T564]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   22.310523][  T564]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   22.310524][  T564]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   22.310529][  T564]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   22.310533][  T564]  br_init_port (net/bridge/br_stp_if.c:39)
[   22.310535][  T564]  new_nbp (net/bridge/br_if.c:449)
[   22.310539][  T564]  br_add_if (net/bridge/br_if.c:592)
[   22.310541][  T564]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   22.310545][  T564]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   22.310550][  T564]  do_set_master (net/core/rtnetlink.c:3071)
[   22.310553][  T564]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   22.310557][  T564]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   22.310560][  T564]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   22.310561][  T564]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   22.310564][  T564]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   22.310568][  T564]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   22.310570][  T564]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   22.310571][  T564]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   22.310574][  T564]  ? kasan_save_stack (mm/kasan/common.c:58)
[   22.310576][  T564]  ? kasan_save_stack (mm/kasan/common.c:57)
[   22.310577][  T564]  ? kasan_save_track (mm/kasan/common.c:78)
[   22.310578][  T564]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   22.310580][  T564]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.310582][  T564]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   22.310585][  T564]  ? ___sys_sendmsg (net/socket.c:2758)
[   22.310589][  T564]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   22.310591][  T564]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   22.310593][  T564]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.310595][  T564]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   22.310597][  T564]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.310598][  T564]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.310599][  T564]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   22.310602][  T564]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   22.310603][  T564]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   22.310605][  T564]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   22.310608][  T564]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   22.310609][  T564]  ? nla_get_range_signed (lib/nlattr.c:270)
[   22.310614][  T564]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.310616][  T564]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   22.310621][  T564]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   22.310626][  T564]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   22.310628][  T564]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.310633][  T564]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   22.310635][  T564]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   22.310637][  T564]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   22.310639][  T564]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   22.310642][  T564]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   22.310644][  T564]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   22.310647][  T564]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   22.310649][  T564]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   22.310653][  T564]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   22.310655][  T564]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   22.310658][  T564]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   22.310661][  T564]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   22.310664][  T564]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   22.310670][  T564]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   22.310672][  T564]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   22.310677][  T564]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   22.310681][  T564]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   22.310683][  T564]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   22.310687][  T564]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   22.310691][  T564]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   22.310695][  T564]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   22.310696][  T564]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   22.310701][  T564]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   22.310704][  T564]  ____sys_sendmsg (net/socket.c:2713)
[   22.310706][  T564]  ? copy_msghdr_from_user (net/socket.c:2650)
[   22.310708][  T564]  ? sock_write_iter (net/socket.c:1269)
[   22.310710][  T564]  ? move_addr_to_kernel (net/socket.c:258)
[   22.310717][  T564]  ___sys_sendmsg (net/socket.c:2767)
[   22.310720][  T564]  ? copy_msghdr_from_user (net/socket.c:2619)
[   22.310735][  T564]  __sys_sendmsg (net/socket.c:2799)
[   22.310738][  T564]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   22.310744][  T564]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   22.310747][  T564]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   22.310750][  T564]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   22.310752][  T564]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   22.310755][  T564] RIP: 0033:0x7fc3a794154e
[   22.310758][  T564] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   22.310760][  T564] RSP: 002b:00007ffd219315d0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   22.310762][  T564] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fc3a794154e
[   22.310764][  T564] RDX: 0000000000000000 RSI: 00007ffd21931680 RDI: 0000000000000005
[   22.310765][  T564] RBP: 00007ffd219315e0 R08: 0000000000000000 R09: 0000000000000000
[   22.310765][  T564] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90ee4d
[   22.310766][  T564] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffd21931d50
| [   23.655943][  T650] softirqs last disabled at (15084): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   23.655945][  T650] Preemption disabled at:
| [   23.655946][  T650] vprintk_emit (kernel/printk/printk.c:2471)
| [   23.655954][  T650] Tainted: [W]=WARN
[   23.655955][  T650] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   23.655957][  T650] Call Trace:
[   23.655958][  T650]  <TASK>
[   23.655960][  T650]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   23.655966][  T650]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   23.655967][  T650]  __might_resched.cold (kernel/sched/core.c:9234)
[   23.655972][  T650]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   23.655976][  T650]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   23.655980][  T650]  __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))
[   23.655982][  T650]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   23.655989][  T650]  ? 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)
[   23.655991][  T650]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   23.655995][  T650]  put_chars (drivers/char/virtio_console.c:1176)
[   23.655997][  T650]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   23.655999][  T650]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   23.656002][  T650]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   23.656008][  T650]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   23.656015][  T650]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   23.656018][  T650]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   23.656020][  T650]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   23.656024][  T650]  console_emit_next_record (kernel/printk/printk.c:3183)
[   23.656028][  T650]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   23.656030][  T650]  ? 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))
[   23.656033][  T650]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   23.656035][  T650]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   23.656039][  T650]  console_flush_one_record (kernel/printk/printk.c:3268)
[   23.656043][  T650]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   23.656045][  T650]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   23.656050][  T650]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   23.656053][  T650]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   23.656055][  T650]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   23.656056][  T650]  ? 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)
[   23.656060][  T650]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   23.656062][  T650]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   23.656064][  T650]  vprintk_emit (kernel/printk/printk.c:2479)
[   23.656068][  T650]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   23.656069][  T650]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   23.656072][  T650]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   23.656076][  T650]  _printk (kernel/printk/printk.c:2504)
[   23.656079][  T650]  ? snapshot_read.cold (user.c:?)
[   23.656083][  T650]  ? br_multicast_flood (??:?)
[   23.656086][  T650]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   23.656087][  T650]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   23.656088][  T650]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   23.656093][  T650]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   23.656097][  T650]  br_init_port (net/bridge/br_stp_if.c:39)
[   23.656099][  T650]  new_nbp (net/bridge/br_if.c:449)
[   23.656103][  T650]  br_add_if (net/bridge/br_if.c:592)
[   23.656105][  T650]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   23.656109][  T650]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   23.656114][  T650]  do_set_master (net/core/rtnetlink.c:3071)
[   23.656118][  T650]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   23.656121][  T650]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   23.656125][  T650]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   23.656126][  T650]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   23.656129][  T650]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   23.656132][  T650]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   23.656134][  T650]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   23.656136][  T650]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   23.656138][  T650]  ? kasan_save_stack (mm/kasan/common.c:58)
[   23.656140][  T650]  ? kasan_save_stack (mm/kasan/common.c:57)
[   23.656141][  T650]  ? kasan_save_track (mm/kasan/common.c:78)
[   23.656143][  T650]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   23.656145][  T650]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   23.656147][  T650]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   23.656149][  T650]  ? ___sys_sendmsg (net/socket.c:2758)
[   23.656153][  T650]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   23.656155][  T650]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   23.656158][  T650]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   23.656159][  T650]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   23.656161][  T650]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   23.656162][  T650]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   23.656164][  T650]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   23.656166][  T650]  ? __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)
[   23.656168][  T650]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   23.656170][  T650]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   23.656174][  T650]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   23.656175][  T650]  ? nla_get_range_signed (lib/nlattr.c:270)
[   23.656180][  T650]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   23.656182][  T650]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   23.656187][  T650]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   23.656192][  T650]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   23.656194][  T650]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   23.656198][  T650]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   23.656200][  T650]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   23.656202][  T650]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   23.656204][  T650]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   23.656208][  T650]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   23.656210][  T650]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   23.656213][  T650]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   23.656214][  T650]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   23.656219][  T650]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   23.656221][  T650]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   23.656224][  T650]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   23.656227][  T650]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   23.656230][  T650]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   23.656237][  T650]  ? 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))
[   23.656239][  T650]  ? 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))
[   23.656243][  T650]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   23.656247][  T650]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   23.656250][  T650]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   23.656254][  T650]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   23.656258][  T650]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   23.656262][  T650]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   23.656263][  T650]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   23.656269][  T650]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   23.656271][  T650]  ____sys_sendmsg (net/socket.c:2713)
[   23.656274][  T650]  ? copy_msghdr_from_user (net/socket.c:2650)
[   23.656276][  T650]  ? sock_write_iter (net/socket.c:1269)
[   23.656277][  T650]  ? move_addr_to_kernel (net/socket.c:258)
[   23.656285][  T650]  ___sys_sendmsg (net/socket.c:2767)
[   23.656287][  T650]  ? copy_msghdr_from_user (net/socket.c:2619)
[   23.656304][  T650]  __sys_sendmsg (net/socket.c:2799)
[   23.656306][  T650]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   23.656313][  T650]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   23.656316][  T650]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   23.656319][  T650]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   23.656321][  T650]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   23.656324][  T650] RIP: 0033:0x7fd66e88754e
[   23.656327][  T650] 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
[   23.656329][  T650] RSP: 002b:00007ffe0c4260f0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   23.656331][  T650] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fd66e88754e
[   23.656333][  T650] RDX: 0000000000000000 RSI: 00007ffe0c4261a0 RDI: 0000000000000005
[   23.656334][  T650] RBP: 00007ffe0c426100 R08: 0000000000000000 R09: 0000000000000000
[   23.656334][  T650] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90ee4f
[   23.656335][  T650] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffe0c426870
| [   24.931741][  T725] softirqs last disabled at (16520): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   24.931744][  T725] Preemption disabled at:
| [   24.931744][  T725] vprintk_emit (kernel/printk/printk.c:2471)
| [   24.931753][  T725] Tainted: [W]=WARN
[   24.931754][  T725] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   24.931755][  T725] Call Trace:
[   24.931757][  T725]  <TASK>
[   24.931758][  T725]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   24.931764][  T725]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   24.931766][  T725]  __might_resched.cold (kernel/sched/core.c:9234)
[   24.931770][  T725]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   24.931774][  T725]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   24.931779][  T725]  __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))
[   24.931780][  T725]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   24.931787][  T725]  ? 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)
[   24.931790][  T725]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   24.931793][  T725]  put_chars (drivers/char/virtio_console.c:1176)
[   24.931796][  T725]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   24.931797][  T725]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   24.931801][  T725]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   24.931806][  T725]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   24.931814][  T725]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   24.931816][  T725]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.931818][  T725]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   24.931822][  T725]  console_emit_next_record (kernel/printk/printk.c:3183)
[   24.931826][  T725]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   24.931828][  T725]  ? 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))
[   24.931837][  T725]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.931839][  T725]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   24.931843][  T725]  console_flush_one_record (kernel/printk/printk.c:3268)
[   24.931847][  T725]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   24.931849][  T725]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   24.931855][  T725]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   24.931857][  T725]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   24.931859][  T725]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.931861][  T725]  ? 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)
[   24.931865][  T725]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   24.931866][  T725]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   24.931869][  T725]  vprintk_emit (kernel/printk/printk.c:2479)
[   24.931872][  T725]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   24.931874][  T725]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   24.931877][  T725]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   24.931880][  T725]  _printk (kernel/printk/printk.c:2504)
[   24.931884][  T725]  ? snapshot_read.cold (user.c:?)
[   24.931887][  T725]  ? br_multicast_flood (??:?)
[   24.931891][  T725]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   24.931892][  T725]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   24.931893][  T725]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   24.931898][  T725]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   24.931902][  T725]  br_init_port (net/bridge/br_stp_if.c:39)
[   24.931905][  T725]  new_nbp (net/bridge/br_if.c:449)
[   24.931908][  T725]  br_add_if (net/bridge/br_if.c:592)
[   24.931911][  T725]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   24.931914][  T725]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   24.931920][  T725]  do_set_master (net/core/rtnetlink.c:3071)
[   24.931923][  T725]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   24.931927][  T725]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   24.931930][  T725]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   24.931931][  T725]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   24.931934][  T725]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   24.931937][  T725]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   24.931939][  T725]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   24.931941][  T725]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   24.931943][  T725]  ? kasan_save_stack (mm/kasan/common.c:58)
[   24.931945][  T725]  ? kasan_save_stack (mm/kasan/common.c:57)
[   24.931946][  T725]  ? kasan_save_track (mm/kasan/common.c:78)
[   24.931948][  T725]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   24.931950][  T725]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   24.931952][  T725]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   24.931955][  T725]  ? ___sys_sendmsg (net/socket.c:2758)
[   24.931958][  T725]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   24.931960][  T725]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   24.931963][  T725]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.931965][  T725]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   24.931966][  T725]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.931967][  T725]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.931969][  T725]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   24.931971][  T725]  ? __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)
[   24.931974][  T725]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   24.931976][  T725]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   24.931979][  T725]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   24.931980][  T725]  ? nla_get_range_signed (lib/nlattr.c:270)
[   24.931985][  T725]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.931988][  T725]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   24.931993][  T725]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   24.931998][  T725]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   24.932000][  T725]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   24.932005][  T725]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   24.932006][  T725]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   24.932008][  T725]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   24.932010][  T725]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   24.932014][  T725]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   24.932016][  T725]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   24.932019][  T725]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   24.932020][  T725]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   24.932025][  T725]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   24.932027][  T725]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   24.932030][  T725]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   24.932034][  T725]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   24.932036][  T725]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   24.932043][  T725]  ? 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))
[   24.932045][  T725]  ? 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))
[   24.932049][  T725]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   24.932053][  T725]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   24.932056][  T725]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   24.932060][  T725]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   24.932064][  T725]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   24.932068][  T725]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   24.932069][  T725]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   24.932075][  T725]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   24.932078][  T725]  ____sys_sendmsg (net/socket.c:2713)
[   24.932080][  T725]  ? copy_msghdr_from_user (net/socket.c:2650)
[   24.932082][  T725]  ? sock_write_iter (net/socket.c:1269)
[   24.932084][  T725]  ? move_addr_to_kernel (net/socket.c:258)
[   24.932091][  T725]  ___sys_sendmsg (net/socket.c:2767)
[   24.932094][  T725]  ? copy_msghdr_from_user (net/socket.c:2619)
[   24.932110][  T725]  __sys_sendmsg (net/socket.c:2799)
[   24.932113][  T725]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   24.932119][  T725]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   24.932122][  T725]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   24.932125][  T725]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   24.932128][  T725]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   24.932130][  T725] RIP: 0033:0x7fe0d6e5854e
[   24.932134][  T725] 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
[   24.932135][  T725] RSP: 002b:00007ffd4b54f670 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   24.932138][  T725] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fe0d6e5854e
[   24.932139][  T725] RDX: 0000000000000000 RSI: 00007ffd4b54f720 RDI: 0000000000000005
[   24.932140][  T725] RBP: 00007ffd4b54f680 R08: 0000000000000000 R09: 0000000000000000
[   24.932141][  T725] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90ee50
[   24.932142][  T725] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffd4b54fdf0
| [   26.227493][  T796] softirqs last disabled at (14076): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   26.227495][  T796] Preemption disabled at:
| [   26.227496][  T796] vprintk_emit (kernel/printk/printk.c:2471)
| [   26.227504][  T796] Tainted: [W]=WARN
[   26.227505][  T796] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   26.227507][  T796] Call Trace:
[   26.227509][  T796]  <TASK>
[   26.227510][  T796]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   26.227516][  T796]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   26.227518][  T796]  __might_resched.cold (kernel/sched/core.c:9234)
[   26.227525][  T796]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   26.227529][  T796]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   26.227533][  T796]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   26.227535][  T796]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   26.227542][  T796]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   26.227544][  T796]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   26.227548][  T796]  put_chars (drivers/char/virtio_console.c:1176)
[   26.227550][  T796]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   26.227552][  T796]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   26.227555][  T796]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   26.227561][  T796]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   26.227568][  T796]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   26.227571][  T796]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.227573][  T796]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   26.227577][  T796]  console_emit_next_record (kernel/printk/printk.c:3183)
[   26.227581][  T796]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   26.227582][  T796]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   26.227586][  T796]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.227587][  T796]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   26.227591][  T796]  console_flush_one_record (kernel/printk/printk.c:3268)
[   26.227595][  T796]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   26.227597][  T796]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   26.227603][  T796]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   26.227606][  T796]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   26.227608][  T796]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.227609][  T796]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   26.227613][  T796]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   26.227615][  T796]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   26.227617][  T796]  vprintk_emit (kernel/printk/printk.c:2479)
[   26.227620][  T796]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   26.227622][  T796]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   26.227625][  T796]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   26.227628][  T796]  _printk (kernel/printk/printk.c:2504)
[   26.227632][  T796]  ? snapshot_read.cold (user.c:?)
[   26.227635][  T796]  ? br_multicast_flood (??:?)
[   26.227639][  T796]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   26.227640][  T796]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   26.227641][  T796]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   26.227646][  T796]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   26.227650][  T796]  br_init_port (net/bridge/br_stp_if.c:39)
[   26.227652][  T796]  new_nbp (net/bridge/br_if.c:449)
[   26.227656][  T796]  br_add_if (net/bridge/br_if.c:592)
[   26.227658][  T796]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   26.227662][  T796]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   26.227667][  T796]  do_set_master (net/core/rtnetlink.c:3071)
[   26.227671][  T796]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   26.227674][  T796]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   26.227677][  T796]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   26.227678][  T796]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   26.227681][  T796]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   26.227684][  T796]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   26.227686][  T796]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   26.227688][  T796]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   26.227691][  T796]  ? kasan_save_stack (mm/kasan/common.c:58)
[   26.227693][  T796]  ? kasan_save_stack (mm/kasan/common.c:57)
[   26.227694][  T796]  ? kasan_save_track (mm/kasan/common.c:78)
[   26.227695][  T796]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   26.227697][  T796]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   26.227699][  T796]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   26.227702][  T796]  ? ___sys_sendmsg (net/socket.c:2758)
[   26.227706][  T796]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   26.227707][  T796]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   26.227710][  T796]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.227712][  T796]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   26.227713][  T796]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.227714][  T796]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.227716][  T796]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   26.227718][  T796]  ? __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)
[   26.227721][  T796]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   26.227723][  T796]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   26.227726][  T796]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   26.227727][  T796]  ? nla_get_range_signed (lib/nlattr.c:270)
[   26.227732][  T796]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.227734][  T796]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   26.227740][  T796]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   26.227745][  T796]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   26.227747][  T796]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   26.227751][  T796]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   26.227753][  T796]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   26.227755][  T796]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   26.227757][  T796]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   26.227761][  T796]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   26.227763][  T796]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   26.227766][  T796]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   26.227767][  T796]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   26.227772][  T796]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   26.227773][  T796]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   26.227777][  T796]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   26.227780][  T796]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   26.227783][  T796]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   26.227789][  T796]  ? 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))
[   26.227791][  T796]  ? 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))
[   26.227796][  T796]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   26.227800][  T796]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   26.227802][  T796]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   26.227807][  T796]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   26.227811][  T796]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   26.227814][  T796]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   26.227816][  T796]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   26.227821][  T796]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   26.227824][  T796]  ____sys_sendmsg (net/socket.c:2713)
[   26.227826][  T796]  ? copy_msghdr_from_user (net/socket.c:2650)
[   26.227829][  T796]  ? sock_write_iter (net/socket.c:1269)
[   26.227830][  T796]  ? move_addr_to_kernel (net/socket.c:258)
[   26.227841][  T796]  ___sys_sendmsg (net/socket.c:2767)
[   26.227844][  T796]  ? copy_msghdr_from_user (net/socket.c:2619)
[   26.227860][  T796]  __sys_sendmsg (net/socket.c:2799)
[   26.227862][  T796]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   26.227869][  T796]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.227872][  T796]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   26.227875][  T796]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   26.227878][  T796]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   26.227880][  T796] RIP: 0033:0x7f05ef07654e
[   26.227884][  T796] 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
[   26.227885][  T796] RSP: 002b:00007fff9245cee0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   26.227888][  T796] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f05ef07654e
[   26.227889][  T796] RDX: 0000000000000000 RSI: 00007fff9245cf90 RDI: 0000000000000005
[   26.227890][  T796] RBP: 00007fff9245cef0 R08: 0000000000000000 R09: 0000000000000000
[   26.227891][  T796] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90ee51
[   26.227892][  T796] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fff9245d660
| [   27.558374][   T12] softirqs last disabled at (26476): inet6_fill_ifla6_attrs (net/ipv6/addrconf.c:5883)
| [   27.558375][   T12] Preemption disabled at:
| [   27.558376][   T12] vprintk_emit (kernel/printk/printk.c:2471)
| [   27.558385][   T12] Tainted: [W]=WARN
[   27.558386][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   27.558387][   T12] Workqueue: netns cleanup_net
[   27.558390][   T12] Call Trace:
[   27.558392][   T12]  <TASK>
[   27.558394][   T12]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   27.558399][   T12]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   27.558401][   T12]  __might_resched.cold (kernel/sched/core.c:9234)
[   27.558406][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   27.558409][   T12]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   27.558414][   T12]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   27.558416][   T12]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   27.558422][   T12]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   27.558425][   T12]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   27.558429][   T12]  put_chars (drivers/char/virtio_console.c:1176)
[   27.558431][   T12]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   27.558434][   T12]  ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928)
[   27.558439][   T12]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   27.558443][   T12]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   27.558448][   T12]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   27.558451][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.558457][   T12]  console_emit_next_record (kernel/printk/printk.c:3183)
[   27.558461][   T12]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   27.558463][   T12]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   27.558466][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.558468][   T12]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   27.558472][   T12]  console_flush_one_record (kernel/printk/printk.c:3268)
[   27.558476][   T12]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   27.558478][   T12]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   27.558484][   T12]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   27.558487][   T12]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   27.558489][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.558490][   T12]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   27.558494][   T12]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   27.558496][   T12]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   27.558499][   T12]  vprintk_emit (kernel/printk/printk.c:2479)
[   27.558502][   T12]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   27.558503][   T12]  ? cleanup_net (net/core/net_namespace.c:706)
[   27.558505][   T12]  ? worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   27.558507][   T12]  ? kthread (kernel/kthread.c:436)
[   27.558509][   T12]  ? ret_from_fork (arch/x86/kernel/process.c:158)
[   27.558512][   T12]  ? ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
[   27.558517][   T12]  _printk (kernel/printk/printk.c:2504)
[   27.558524][   T12]  ? snapshot_read.cold (user.c:?)
[   27.558528][   T12]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   27.558532][   T12]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   27.558536][   T12]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   27.558539][   T12]  ? netdev_notice (net/core/dev.c:13194)
[   27.558543][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.558545][   T12]  ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1))
[   27.558547][   T12]  ? down_write_nested (kernel/locking/rwsem.c:1759)
[   27.558549][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   27.558552][   T12]  netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3))
[   27.558556][   T12]  dev_set_allmulti (net/core/dev_api.c:315)
[   27.558559][   T12]  del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341)
[   27.558566][   T12]  br_dev_delete (net/bridge/br_if.c:387)
[   27.558569][   T12]  br_net_exit_rtnl (net/bridge/br.c:414)
[   27.558573][   T12]  ops_undo_list (net/core/net_namespace.c:181 net/core/net_namespace.c:249)
[   27.558576][   T12]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   27.558580][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   27.558582][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   27.558585][   T12]  ? idr_destroy (lib/radix-tree.c:310 lib/radix-tree.c:674 lib/radix-tree.c:1563)
[   27.558589][   T12]  cleanup_net (net/core/net_namespace.c:706)
[   27.558592][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   27.558596][   T12]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   27.558598][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.558601][   T12]  process_one_work (kernel/workqueue.c:3387)
[   27.558608][   T12]  ? __queue_delayed_work (kernel/workqueue.c:2622)
[   27.558611][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   27.558619][   T12]  worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   27.558626][   T12]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   27.558628][   T12]  kthread (kernel/kthread.c:436)
[   27.558630][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   27.558633][   T12]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   27.558636][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   27.558639][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1))
[   27.558642][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   27.558646][   T12]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   27.558649][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   28.911459][  T944] softirqs last disabled at (14854): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   28.911462][  T944] Preemption disabled at:
| [   28.911462][  T944] vprintk_emit (kernel/printk/printk.c:2471)
| [   28.911471][  T944] Tainted: [W]=WARN
[   28.911472][  T944] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   28.911473][  T944] Call Trace:
[   28.911475][  T944]  <TASK>
[   28.911476][  T944]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   28.911482][  T944]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   28.911484][  T944]  __might_resched.cold (kernel/sched/core.c:9234)
[   28.911489][  T944]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   28.911493][  T944]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   28.911497][  T944]  __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))
[   28.911499][  T944]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   28.911506][  T944]  ? 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)
[   28.911508][  T944]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   28.911512][  T944]  put_chars (drivers/char/virtio_console.c:1176)
[   28.911514][  T944]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   28.911522][  T944]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   28.911530][  T944]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   28.911533][  T944]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   28.911537][  T944]  console_emit_next_record (kernel/printk/printk.c:3183)
[   28.911541][  T944]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   28.911543][  T944]  ? 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))
[   28.911546][  T944]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.911549][  T944]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   28.911553][  T944]  console_flush_one_record (kernel/printk/printk.c:3268)
[   28.911557][  T944]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   28.911559][  T944]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   28.911564][  T944]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   28.911567][  T944]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   28.911569][  T944]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.911571][  T944]  ? 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)
[   28.911575][  T944]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   28.911576][  T944]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   28.911579][  T944]  vprintk_emit (kernel/printk/printk.c:2479)
[   28.911582][  T944]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   28.911584][  T944]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   28.911586][  T944]  ? lock_pin_lock (kernel/locking/lockdep.c:5640 (discriminator 2) kernel/locking/lockdep.c:6003 (discriminator 2) kernel/locking/lockdep.c:5991 (discriminator 2))
[   28.911588][  T944]  ? __print_lock_name (kernel/locking/lockdep.c:718)
[   28.911591][  T944]  _printk (kernel/printk/printk.c:2504)
[   28.911595][  T944]  ? snapshot_read.cold (user.c:?)
[   28.911596][  T944]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   28.911599][  T944]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   28.911602][  T944]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   28.911604][  T944]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   28.911608][  T944]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   28.911610][  T944]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   28.911613][  T944]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   28.911616][  T944]  ? netdev_notice (net/core/dev.c:13194)
[   28.911618][  T944]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   28.911621][  T944]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   28.911624][  T944]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   28.911627][  T944]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   28.911629][  T944]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   28.911631][  T944]  ? 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))
[   28.911636][  T944]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   28.911639][  T944]  ? __kernel_text_address (kernel/extable.c:79)
[   28.911641][  T944]  ? write_profile (profile.c:?)
[   28.911645][  T944]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   28.911651][  T944]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   28.911654][  T944]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   28.911656][  T944]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   28.911657][  T944]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   28.911659][  T944]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   28.911663][  T944]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   28.911665][  T944]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   28.911666][  T944]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   28.911669][  T944]  ? kasan_save_stack (mm/kasan/common.c:58)
[   28.911670][  T944]  ? kasan_save_stack (mm/kasan/common.c:57)
[   28.911672][  T944]  ? kasan_save_track (mm/kasan/common.c:78)
[   28.911673][  T944]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   28.911675][  T944]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   28.911677][  T944]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   28.911680][  T944]  ? ___sys_sendmsg (net/socket.c:2758)
[   28.911684][  T944]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   28.911685][  T944]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   28.911688][  T944]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.911690][  T944]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   28.911691][  T944]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.911692][  T944]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.911694][  T944]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   28.911696][  T944]  ? __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)
[   28.911699][  T944]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   28.911701][  T944]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   28.911704][  T944]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   28.911705][  T944]  ? nla_get_range_signed (lib/nlattr.c:270)
[   28.911710][  T944]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.911712][  T944]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   28.911717][  T944]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   28.911722][  T944]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   28.911724][  T944]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   28.911728][  T944]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   28.911730][  T944]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   28.911732][  T944]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   28.911734][  T944]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   28.911737][  T944]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   28.911739][  T944]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   28.911743][  T944]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   28.911744][  T944]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   28.911748][  T944]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   28.911750][  T944]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   28.911754][  T944]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   28.911757][  T944]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   28.911759][  T944]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   28.911766][  T944]  ? 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))
[   28.911768][  T944]  ? 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))
[   28.911772][  T944]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   28.911776][  T944]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   28.911778][  T944]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   28.911782][  T944]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   28.911786][  T944]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   28.911790][  T944]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   28.911791][  T944]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   28.911797][  T944]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   28.911799][  T944]  ____sys_sendmsg (net/socket.c:2713)
[   28.911802][  T944]  ? copy_msghdr_from_user (net/socket.c:2650)
[   28.911804][  T944]  ? sock_write_iter (net/socket.c:1269)
[   28.911805][  T944]  ? move_addr_to_kernel (net/socket.c:258)
[   28.911812][  T944]  ___sys_sendmsg (net/socket.c:2767)
[   28.911815][  T944]  ? copy_msghdr_from_user (net/socket.c:2619)
[   28.911830][  T944]  __sys_sendmsg (net/socket.c:2799)
[   28.911833][  T944]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   28.911839][  T944]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.911842][  T944]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   28.911849][  T944]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   28.911851][  T944]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   28.911853][  T944] RIP: 0033:0x7f343d33c54e
[   28.911857][  T944] 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
[   28.911859][  T944] RSP: 002b:00007ffe66f1e330 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   28.911861][  T944] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f343d33c54e
[   28.911863][  T944] RDX: 0000000000000000 RSI: 00007ffe66f1e3e0 RDI: 0000000000000005
[   28.911863][  T944] RBP: 00007ffe66f1e340 R08: 0000000000000000 R09: 0000000000000000
[   28.911864][  T944] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90ee54
[   28.911865][  T944] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffe66f1eab0
| [   40.659419][ T1246] softirqs last disabled at (18348): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   40.659421][ T1246] Preemption disabled at:
| [   40.659422][ T1246] vprintk_emit (kernel/printk/printk.c:2471)
| [   40.659430][ T1246] Tainted: [W]=WARN
[   40.659431][ T1246] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   40.659432][ T1246] Call Trace:
[   40.659434][ T1246]  <TASK>
[   40.659436][ T1246]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   40.659441][ T1246]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   40.659443][ T1246]  __might_resched.cold (kernel/sched/core.c:9234)
[   40.659448][ T1246]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   40.659452][ T1246]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   40.659456][ T1246]  __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))
[   40.659458][ T1246]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   40.659465][ T1246]  ? 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)
[   40.659467][ T1246]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   40.659471][ T1246]  put_chars (drivers/char/virtio_console.c:1176)
[   40.659474][ T1246]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   40.659475][ T1246]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   40.659478][ T1246]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   40.659484][ T1246]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   40.659491][ T1246]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   40.659494][ T1246]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   40.659496][ T1246]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   40.659500][ T1246]  console_emit_next_record (kernel/printk/printk.c:3183)
[   40.659504][ T1246]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   40.659506][ T1246]  ? 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))
[   40.659509][ T1246]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   40.659511][ T1246]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   40.659514][ T1246]  console_flush_one_record (kernel/printk/printk.c:3268)
[   40.659521][ T1246]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   40.659522][ T1246]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   40.659528][ T1246]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   40.659531][ T1246]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   40.659532][ T1246]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   40.659534][ T1246]  ? 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)
[   40.659538][ T1246]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   40.659539][ T1246]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   40.659542][ T1246]  vprintk_emit (kernel/printk/printk.c:2479)
[   40.659545][ T1246]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   40.659547][ T1246]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   40.659550][ T1246]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   40.659553][ T1246]  _printk (kernel/printk/printk.c:2504)
[   40.659557][ T1246]  ? snapshot_read.cold (user.c:?)
[   40.659560][ T1246]  ? br_multicast_flood (??:?)
[   40.659564][ T1246]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   40.659565][ T1246]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   40.659566][ T1246]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   40.659570][ T1246]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   40.659575][ T1246]  br_init_port (net/bridge/br_stp_if.c:39)
[   40.659577][ T1246]  new_nbp (net/bridge/br_if.c:449)
[   40.659581][ T1246]  br_add_if (net/bridge/br_if.c:592)
[   40.659583][ T1246]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   40.659587][ T1246]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   40.659592][ T1246]  do_set_master (net/core/rtnetlink.c:3071)
[   40.659596][ T1246]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   40.659599][ T1246]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   40.659602][ T1246]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   40.659603][ T1246]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   40.659606][ T1246]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   40.659610][ T1246]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   40.659611][ T1246]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   40.659613][ T1246]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   40.659616][ T1246]  ? kasan_save_stack (mm/kasan/common.c:58)
[   40.659618][ T1246]  ? kasan_save_stack (mm/kasan/common.c:57)
[   40.659619][ T1246]  ? kasan_save_track (mm/kasan/common.c:78)
[   40.659620][ T1246]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   40.659622][ T1246]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   40.659624][ T1246]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   40.659627][ T1246]  ? ___sys_sendmsg (net/socket.c:2758)
[   40.659631][ T1246]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   40.659633][ T1246]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   40.659635][ T1246]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   40.659637][ T1246]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   40.659638][ T1246]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   40.659639][ T1246]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   40.659641][ T1246]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   40.659643][ T1246]  ? __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)
[   40.659646][ T1246]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   40.659648][ T1246]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   40.659651][ T1246]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   40.659652][ T1246]  ? nla_get_range_signed (lib/nlattr.c:270)
[   40.659657][ T1246]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   40.659659][ T1246]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   40.659664][ T1246]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   40.659669][ T1246]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   40.659671][ T1246]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   40.659675][ T1246]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   40.659677][ T1246]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   40.659679][ T1246]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   40.659681][ T1246]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   40.659685][ T1246]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   40.659687][ T1246]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   40.659689][ T1246]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   40.659691][ T1246]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   40.659695][ T1246]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   40.659697][ T1246]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   40.659700][ T1246]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   40.659704][ T1246]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   40.659706][ T1246]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   40.659713][ T1246]  ? 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))
[   40.659715][ T1246]  ? 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))
[   40.659719][ T1246]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   40.659723][ T1246]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   40.659725][ T1246]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   40.659729][ T1246]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   40.659733][ T1246]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   40.659737][ T1246]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   40.659739][ T1246]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   40.659744][ T1246]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   40.659747][ T1246]  ____sys_sendmsg (net/socket.c:2713)
[   40.659749][ T1246]  ? copy_msghdr_from_user (net/socket.c:2650)
[   40.659751][ T1246]  ? sock_write_iter (net/socket.c:1269)
[   40.659753][ T1246]  ? move_addr_to_kernel (net/socket.c:258)
[   40.659760][ T1246]  ___sys_sendmsg (net/socket.c:2767)
[   40.659762][ T1246]  ? copy_msghdr_from_user (net/socket.c:2619)
[   40.659778][ T1246]  __sys_sendmsg (net/socket.c:2799)
[   40.659781][ T1246]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   40.659787][ T1246]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   40.659790][ T1246]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   40.659793][ T1246]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   40.659795][ T1246]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   40.659798][ T1246] RIP: 0033:0x7fb84879a54e
[   40.659801][ T1246] 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
[   40.659803][ T1246] RSP: 002b:00007fff39a97400 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   40.659806][ T1246] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fb84879a54e
[   40.659807][ T1246] RDX: 0000000000000000 RSI: 00007fff39a974b0 RDI: 0000000000000005
[   40.659808][ T1246] RBP: 00007fff39a97410 R08: 0000000000000000 R09: 0000000000000000
[   40.659809][ T1246] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90ee60
[   40.659810][ T1246] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fff39a97b80
| [   41.973506][ T1338] softirqs last disabled at (22840): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   41.973509][ T1338] Preemption disabled at:
| [   41.973509][ T1338] vprintk_emit (kernel/printk/printk.c:2471)
| [   41.973522][ T1338] Tainted: [W]=WARN
[   41.973523][ T1338] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   41.973524][ T1338] Call Trace:
[   41.973526][ T1338]  <TASK>
[   41.973528][ T1338]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   41.973534][ T1338]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   41.973535][ T1338]  __might_resched.cold (kernel/sched/core.c:9234)
[   41.973540][ T1338]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   41.973544][ T1338]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   41.973549][ T1338]  __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))
[   41.973551][ T1338]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   41.973558][ T1338]  ? 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)
[   41.973560][ T1338]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   41.973564][ T1338]  put_chars (drivers/char/virtio_console.c:1176)
[   41.973566][ T1338]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   41.973568][ T1338]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   41.973571][ T1338]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   41.973577][ T1338]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   41.973584][ T1338]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   41.973587][ T1338]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   41.973589][ T1338]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   41.973593][ T1338]  console_emit_next_record (kernel/printk/printk.c:3183)
[   41.973597][ T1338]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   41.973598][ T1338]  ? 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))
[   41.973602][ T1338]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   41.973603][ T1338]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   41.973607][ T1338]  console_flush_one_record (kernel/printk/printk.c:3268)
[   41.973611][ T1338]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   41.973613][ T1338]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   41.973619][ T1338]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   41.973621][ T1338]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   41.973623][ T1338]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   41.973625][ T1338]  ? 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)
[   41.973628][ T1338]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   41.973630][ T1338]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   41.973633][ T1338]  vprintk_emit (kernel/printk/printk.c:2479)
[   41.973636][ T1338]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   41.973638][ T1338]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   41.973641][ T1338]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   41.973644][ T1338]  _printk (kernel/printk/printk.c:2504)
[   41.973648][ T1338]  ? snapshot_read.cold (user.c:?)
[   41.973651][ T1338]  ? br_multicast_flood (??:?)
[   41.973655][ T1338]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   41.973656][ T1338]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   41.973657][ T1338]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   41.973662][ T1338]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   41.973666][ T1338]  br_init_port (net/bridge/br_stp_if.c:39)
[   41.973668][ T1338]  new_nbp (net/bridge/br_if.c:449)
[   41.973672][ T1338]  br_add_if (net/bridge/br_if.c:592)
[   41.973674][ T1338]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   41.973678][ T1338]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   41.973683][ T1338]  do_set_master (net/core/rtnetlink.c:3071)
[   41.973687][ T1338]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   41.973690][ T1338]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   41.973693][ T1338]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   41.973694][ T1338]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   41.973697][ T1338]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   41.973700][ T1338]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   41.973702][ T1338]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   41.973704][ T1338]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   41.973706][ T1338]  ? kasan_save_stack (mm/kasan/common.c:58)
[   41.973709][ T1338]  ? kasan_save_stack (mm/kasan/common.c:57)
[   41.973710][ T1338]  ? kasan_save_track (mm/kasan/common.c:78)
[   41.973711][ T1338]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   41.973714][ T1338]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   41.973715][ T1338]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   41.973718][ T1338]  ? ___sys_sendmsg (net/socket.c:2758)
[   41.973722][ T1338]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   41.973724][ T1338]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   41.973726][ T1338]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   41.973728][ T1338]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   41.973730][ T1338]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   41.973731][ T1338]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   41.973732][ T1338]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   41.973734][ T1338]  ? __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)
[   41.973737][ T1338]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   41.973739][ T1338]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   41.973742][ T1338]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   41.973743][ T1338]  ? nla_get_range_signed (lib/nlattr.c:270)
[   41.973748][ T1338]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   41.973750][ T1338]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   41.973755][ T1338]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   41.973761][ T1338]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   41.973763][ T1338]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   41.973767][ T1338]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   41.973769][ T1338]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   41.973771][ T1338]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   41.973773][ T1338]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   41.973776][ T1338]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   41.973778][ T1338]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   41.973781][ T1338]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   41.973783][ T1338]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   41.973787][ T1338]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   41.973789][ T1338]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   41.973793][ T1338]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   41.973796][ T1338]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   41.973799][ T1338]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   41.973805][ T1338]  ? 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))
[   41.973807][ T1338]  ? 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))
[   41.973811][ T1338]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   41.973815][ T1338]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   41.973818][ T1338]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   41.973822][ T1338]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   41.973826][ T1338]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   41.973830][ T1338]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   41.973831][ T1338]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   41.973837][ T1338]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   41.973840][ T1338]  ____sys_sendmsg (net/socket.c:2713)
[   41.973842][ T1338]  ? copy_msghdr_from_user (net/socket.c:2650)
[   41.973844][ T1338]  ? sock_write_iter (net/socket.c:1269)
[   41.973846][ T1338]  ? move_addr_to_kernel (net/socket.c:258)
[   41.973853][ T1338]  ___sys_sendmsg (net/socket.c:2767)
[   41.973856][ T1338]  ? copy_msghdr_from_user (net/socket.c:2619)
[   41.973872][ T1338]  __sys_sendmsg (net/socket.c:2799)
[   41.973874][ T1338]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   41.973881][ T1338]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   41.973884][ T1338]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   41.973887][ T1338]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   41.973897][ T1338]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   41.973899][ T1338] RIP: 0033:0x7f7f50dbe54e
[   41.973903][ T1338] 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
[   41.973904][ T1338] RSP: 002b:00007ffd304057d0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   41.973907][ T1338] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f7f50dbe54e
[   41.973909][ T1338] RDX: 0000000000000000 RSI: 00007ffd30405880 RDI: 0000000000000005
[   41.973909][ T1338] RBP: 00007ffd304057e0 R08: 0000000000000000 R09: 0000000000000000
[   41.973910][ T1338] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90ee61
[   41.973911][ T1338] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffd30405f50
| [   43.262636][ T1408] softirqs last disabled at (20722): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   43.262639][ T1408] Preemption disabled at:
| [   43.262639][ T1408] vprintk_emit (kernel/printk/printk.c:2471)
| [   43.262648][ T1408] Tainted: [W]=WARN
[   43.262649][ T1408] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   43.262650][ T1408] Call Trace:
[   43.262652][ T1408]  <TASK>
[   43.262654][ T1408]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   43.262660][ T1408]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   43.262661][ T1408]  __might_resched.cold (kernel/sched/core.c:9234)
[   43.262666][ T1408]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   43.262671][ T1408]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   43.262675][ T1408]  __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))
[   43.262677][ T1408]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   43.262684][ T1408]  ? 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)
[   43.262686][ T1408]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   43.262689][ T1408]  put_chars (drivers/char/virtio_console.c:1176)
[   43.262692][ T1408]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   43.262693][ T1408]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   43.262697][ T1408]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   43.262702][ T1408]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   43.262710][ T1408]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   43.262713][ T1408]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   43.262715][ T1408]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   43.262719][ T1408]  console_emit_next_record (kernel/printk/printk.c:3183)
[   43.262723][ T1408]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   43.262725][ T1408]  ? 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))
[   43.262728][ T1408]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   43.262729][ T1408]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   43.262733][ T1408]  console_flush_one_record (kernel/printk/printk.c:3268)
[   43.262738][ T1408]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   43.262739][ T1408]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   43.262745][ T1408]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   43.262748][ T1408]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   43.262749][ T1408]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   43.262751][ T1408]  ? 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)
[   43.262755][ T1408]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   43.262757][ T1408]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   43.262759][ T1408]  vprintk_emit (kernel/printk/printk.c:2479)
[   43.262763][ T1408]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   43.262764][ T1408]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   43.262767][ T1408]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   43.262771][ T1408]  _printk (kernel/printk/printk.c:2504)
[   43.262774][ T1408]  ? snapshot_read.cold (user.c:?)
[   43.262777][ T1408]  ? br_multicast_flood (??:?)
[   43.262781][ T1408]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   43.262782][ T1408]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   43.262784][ T1408]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   43.262788][ T1408]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   43.262792][ T1408]  br_init_port (net/bridge/br_stp_if.c:39)
[   43.262795][ T1408]  new_nbp (net/bridge/br_if.c:449)
[   43.262799][ T1408]  br_add_if (net/bridge/br_if.c:592)
[   43.262801][ T1408]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   43.262805][ T1408]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   43.262810][ T1408]  do_set_master (net/core/rtnetlink.c:3071)
[   43.262813][ T1408]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   43.262817][ T1408]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   43.262820][ T1408]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   43.262821][ T1408]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   43.262824][ T1408]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   43.262827][ T1408]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   43.262829][ T1408]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   43.262831][ T1408]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   43.262833][ T1408]  ? kasan_save_stack (mm/kasan/common.c:58)
[   43.262836][ T1408]  ? kasan_save_stack (mm/kasan/common.c:57)
[   43.262837][ T1408]  ? kasan_save_track (mm/kasan/common.c:78)
[   43.262838][ T1408]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   43.262840][ T1408]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   43.262842][ T1408]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   43.262845][ T1408]  ? ___sys_sendmsg (net/socket.c:2758)
[   43.262849][ T1408]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   43.262851][ T1408]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   43.262853][ T1408]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   43.262855][ T1408]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   43.262856][ T1408]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   43.262857][ T1408]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   43.262859][ T1408]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   43.262861][ T1408]  ? __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)
[   43.262864][ T1408]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   43.262866][ T1408]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   43.262869][ T1408]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   43.262870][ T1408]  ? nla_get_range_signed (lib/nlattr.c:270)
[   43.262875][ T1408]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   43.262877][ T1408]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   43.262882][ T1408]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   43.262888][ T1408]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   43.262889][ T1408]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   43.262898][ T1408]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   43.262900][ T1408]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   43.262902][ T1408]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   43.262904][ T1408]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   43.262908][ T1408]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   43.262910][ T1408]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   43.262913][ T1408]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   43.262914][ T1408]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   43.262919][ T1408]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   43.262920][ T1408]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   43.262924][ T1408]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   43.262927][ T1408]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   43.262929][ T1408]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   43.262936][ T1408]  ? 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))
[   43.262938][ T1408]  ? 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))
[   43.262942][ T1408]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   43.262946][ T1408]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   43.262948][ T1408]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   43.262952][ T1408]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   43.262956][ T1408]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   43.262960][ T1408]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   43.262962][ T1408]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   43.262967][ T1408]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   43.262970][ T1408]  ____sys_sendmsg (net/socket.c:2713)
[   43.262972][ T1408]  ? copy_msghdr_from_user (net/socket.c:2650)
[   43.262974][ T1408]  ? sock_write_iter (net/socket.c:1269)
[   43.262976][ T1408]  ? move_addr_to_kernel (net/socket.c:258)
[   43.262983][ T1408]  ___sys_sendmsg (net/socket.c:2767)
[   43.262986][ T1408]  ? copy_msghdr_from_user (net/socket.c:2619)
[   43.263001][ T1408]  __sys_sendmsg (net/socket.c:2799)
[   43.263004][ T1408]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   43.263010][ T1408]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   43.263013][ T1408]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   43.263016][ T1408]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   43.263019][ T1408]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   43.263021][ T1408] RIP: 0033:0x7f4a8edc554e
[   43.263025][ T1408] 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
[   43.263026][ T1408] RSP: 002b:00007ffc4081f1a0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   43.263029][ T1408] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f4a8edc554e
[   43.263030][ T1408] RDX: 0000000000000000 RSI: 00007ffc4081f250 RDI: 0000000000000005
[   43.263031][ T1408] RBP: 00007ffc4081f1b0 R08: 0000000000000000 R09: 0000000000000000
[   43.263032][ T1408] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90ee62
[   43.263033][ T1408] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffc4081f920
| [   44.523532][ T1477] softirqs last disabled at (23098): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   44.523535][ T1477] Preemption disabled at:
| [   44.523536][ T1477] vprintk_emit (kernel/printk/printk.c:2471)
| [   44.523544][ T1477] Tainted: [W]=WARN
[   44.523545][ T1477] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   44.523547][ T1477] Call Trace:
[   44.523548][ T1477]  <TASK>
[   44.523550][ T1477]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   44.523556][ T1477]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   44.523557][ T1477]  __might_resched.cold (kernel/sched/core.c:9234)
[   44.523562][ T1477]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   44.523566][ T1477]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   44.523571][ T1477]  __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))
[   44.523573][ T1477]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   44.523579][ T1477]  ? 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)
[   44.523582][ T1477]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   44.523586][ T1477]  put_chars (drivers/char/virtio_console.c:1176)
[   44.523588][ T1477]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   44.523589][ T1477]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   44.523593][ T1477]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   44.523598][ T1477]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   44.523606][ T1477]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   44.523608][ T1477]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   44.523610][ T1477]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   44.523614][ T1477]  console_emit_next_record (kernel/printk/printk.c:3183)
[   44.523618][ T1477]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   44.523620][ T1477]  ? 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))
[   44.523623][ T1477]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   44.523625][ T1477]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   44.523629][ T1477]  console_flush_one_record (kernel/printk/printk.c:3268)
[   44.523633][ T1477]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   44.523635][ T1477]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   44.523640][ T1477]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   44.523643][ T1477]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   44.523645][ T1477]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   44.523646][ T1477]  ? 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)
[   44.523650][ T1477]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   44.523652][ T1477]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   44.523654][ T1477]  vprintk_emit (kernel/printk/printk.c:2479)
[   44.523658][ T1477]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   44.523659][ T1477]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   44.523662][ T1477]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   44.523665][ T1477]  _printk (kernel/printk/printk.c:2504)
[   44.523669][ T1477]  ? snapshot_read.cold (user.c:?)
[   44.523672][ T1477]  ? br_multicast_flood (??:?)
[   44.523676][ T1477]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   44.523677][ T1477]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   44.523678][ T1477]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   44.523682][ T1477]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   44.523687][ T1477]  br_init_port (net/bridge/br_stp_if.c:39)
[   44.523689][ T1477]  new_nbp (net/bridge/br_if.c:449)
[   44.523693][ T1477]  br_add_if (net/bridge/br_if.c:592)
[   44.523695][ T1477]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   44.523699][ T1477]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   44.523704][ T1477]  do_set_master (net/core/rtnetlink.c:3071)
[   44.523707][ T1477]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   44.523711][ T1477]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   44.523714][ T1477]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   44.523715][ T1477]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   44.523718][ T1477]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   44.523721][ T1477]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   44.523723][ T1477]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   44.523725][ T1477]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   44.523728][ T1477]  ? kasan_save_stack (mm/kasan/common.c:58)
[   44.523730][ T1477]  ? kasan_save_stack (mm/kasan/common.c:57)
[   44.523731][ T1477]  ? kasan_save_track (mm/kasan/common.c:78)
[   44.523732][ T1477]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   44.523735][ T1477]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   44.523736][ T1477]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   44.523739][ T1477]  ? ___sys_sendmsg (net/socket.c:2758)
[   44.523743][ T1477]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   44.523745][ T1477]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   44.523747][ T1477]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   44.523749][ T1477]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   44.523751][ T1477]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   44.523752][ T1477]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   44.523754][ T1477]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   44.523756][ T1477]  ? __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)
[   44.523759][ T1477]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   44.523761][ T1477]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   44.523764][ T1477]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   44.523765][ T1477]  ? nla_get_range_signed (lib/nlattr.c:270)
[   44.523770][ T1477]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   44.523772][ T1477]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   44.523777][ T1477]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   44.523782][ T1477]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   44.523784][ T1477]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   44.523789][ T1477]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   44.523791][ T1477]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   44.523793][ T1477]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   44.523794][ T1477]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   44.523798][ T1477]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   44.523800][ T1477]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   44.523803][ T1477]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   44.523804][ T1477]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   44.523809][ T1477]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   44.523811][ T1477]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   44.523814][ T1477]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   44.523817][ T1477]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   44.523820][ T1477]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   44.523826][ T1477]  ? 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))
[   44.523828][ T1477]  ? 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))
[   44.523833][ T1477]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   44.523837][ T1477]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   44.523839][ T1477]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   44.523843][ T1477]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   44.523847][ T1477]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   44.523851][ T1477]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   44.523852][ T1477]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   44.523858][ T1477]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   44.523860][ T1477]  ____sys_sendmsg (net/socket.c:2713)
[   44.523863][ T1477]  ? copy_msghdr_from_user (net/socket.c:2650)
[   44.523865][ T1477]  ? sock_write_iter (net/socket.c:1269)
[   44.523866][ T1477]  ? move_addr_to_kernel (net/socket.c:258)
[   44.523873][ T1477]  ___sys_sendmsg (net/socket.c:2767)
[   44.523876][ T1477]  ? copy_msghdr_from_user (net/socket.c:2619)
[   44.523892][ T1477]  __sys_sendmsg (net/socket.c:2799)
[   44.523894][ T1477]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   44.523905][ T1477]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   44.523908][ T1477]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   44.523911][ T1477]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   44.523914][ T1477]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   44.523916][ T1477] RIP: 0033:0x7fe80f15954e
[   44.523920][ T1477] 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
[   44.523921][ T1477] RSP: 002b:00007ffc3335c640 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   44.523924][ T1477] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fe80f15954e
[   44.523925][ T1477] RDX: 0000000000000000 RSI: 00007ffc3335c6f0 RDI: 0000000000000005
[   44.523926][ T1477] RBP: 00007ffc3335c650 R08: 0000000000000000 R09: 0000000000000000
[   44.523927][ T1477] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90ee63
[   44.523928][ T1477] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffc3335cdc0
| [   45.854887][   T12] softirqs last disabled at (383382): inet6_fill_ifla6_attrs (net/ipv6/addrconf.c:5883)
| [   45.854889][   T12] Preemption disabled at:
| [   45.854890][   T12] vprintk_emit (kernel/printk/printk.c:2471)
| [   45.854898][   T12] Tainted: [W]=WARN
[   45.854899][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   45.854901][   T12] Workqueue: netns cleanup_net
[   45.854909][   T12] Call Trace:
[   45.854910][   T12]  <TASK>
[   45.854912][   T12]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   45.854918][   T12]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   45.854920][   T12]  __might_resched.cold (kernel/sched/core.c:9234)
[   45.854924][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   45.854928][   T12]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   45.854933][   T12]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   45.854935][   T12]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   45.854941][   T12]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   45.854944][   T12]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   45.854948][   T12]  put_chars (drivers/char/virtio_console.c:1176)
[   45.854950][   T12]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   45.854951][   T12]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   45.854955][   T12]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   45.854958][   T12]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   45.854963][   T12]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   45.854967][   T12]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   45.854972][   T12]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   45.854975][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   45.854980][   T12]  console_emit_next_record (kernel/printk/printk.c:3183)
[   45.854984][   T12]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   45.854986][   T12]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   45.854989][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   45.854991][   T12]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   45.854995][   T12]  console_flush_one_record (kernel/printk/printk.c:3268)
[   45.854999][   T12]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   45.855001][   T12]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   45.855006][   T12]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   45.855009][   T12]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   45.855011][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   45.855013][   T12]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   45.855016][   T12]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   45.855018][   T12]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   45.855021][   T12]  vprintk_emit (kernel/printk/printk.c:2479)
[   45.855024][   T12]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   45.855026][   T12]  ? cleanup_net (net/core/net_namespace.c:706)
[   45.855027][   T12]  ? worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   45.855029][   T12]  ? kthread (kernel/kthread.c:436)
[   45.855031][   T12]  ? ret_from_fork (arch/x86/kernel/process.c:158)
[   45.855034][   T12]  ? ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
[   45.855039][   T12]  _printk (kernel/printk/printk.c:2504)
[   45.855042][   T12]  ? snapshot_read.cold (user.c:?)
[   45.855047][   T12]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   45.855051][   T12]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   45.855055][   T12]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   45.855058][   T12]  ? netdev_notice (net/core/dev.c:13194)
[   45.855062][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   45.855064][   T12]  ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1))
[   45.855066][   T12]  ? down_write_nested (kernel/locking/rwsem.c:1759)
[   45.855068][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   45.855071][   T12]  netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3))
[   45.855075][   T12]  dev_set_allmulti (net/core/dev_api.c:315)
[   45.855078][   T12]  del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341)
[   45.855084][   T12]  br_dev_delete (net/bridge/br_if.c:387)
[   45.855088][   T12]  br_net_exit_rtnl (net/bridge/br.c:414)
[   45.855091][   T12]  ops_undo_list (net/core/net_namespace.c:181 net/core/net_namespace.c:249)
[   45.855095][   T12]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   45.855098][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   45.855100][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   45.855103][   T12]  ? idr_destroy (lib/radix-tree.c:310 lib/radix-tree.c:674 lib/radix-tree.c:1563)
[   45.855108][   T12]  cleanup_net (net/core/net_namespace.c:706)
[   45.855111][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   45.855115][   T12]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   45.855116][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   45.855120][   T12]  process_one_work (kernel/workqueue.c:3387)
[   45.855126][   T12]  ? __queue_delayed_work (kernel/workqueue.c:2622)
[   45.855129][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   45.855137][   T12]  worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   45.855144][   T12]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   45.855146][   T12]  kthread (kernel/kthread.c:436)
[   45.855148][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   45.855151][   T12]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   45.855154][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   45.855157][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1))
[   45.855160][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   45.855164][   T12]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   45.855167][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   47.210875][ T1623] softirqs last disabled at (15722): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   47.210877][ T1623] Preemption disabled at:
| [   47.210878][ T1623] vprintk_emit (kernel/printk/printk.c:2471)
| [   47.210886][ T1623] Tainted: [W]=WARN
[   47.210888][ T1623] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   47.210889][ T1623] Call Trace:
[   47.210891][ T1623]  <TASK>
[   47.210893][ T1623]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   47.210899][ T1623]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   47.210900][ T1623]  __might_resched.cold (kernel/sched/core.c:9234)
[   47.210905][ T1623]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   47.210914][ T1623]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   47.210919][ T1623]  __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))
[   47.210921][ T1623]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   47.210927][ T1623]  ? 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)
[   47.210930][ T1623]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   47.210934][ T1623]  put_chars (drivers/char/virtio_console.c:1176)
[   47.210936][ T1623]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   47.210942][ T1623]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   47.210950][ T1623]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   47.210953][ T1623]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   47.210957][ T1623]  console_emit_next_record (kernel/printk/printk.c:3183)
[   47.210961][ T1623]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   47.210963][ T1623]  ? 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))
[   47.210966][ T1623]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   47.210969][ T1623]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   47.210973][ T1623]  console_flush_one_record (kernel/printk/printk.c:3268)
[   47.210977][ T1623]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   47.210979][ T1623]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   47.210984][ T1623]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   47.210987][ T1623]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   47.210989][ T1623]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   47.210991][ T1623]  ? 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)
[   47.210994][ T1623]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   47.210996][ T1623]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   47.210999][ T1623]  vprintk_emit (kernel/printk/printk.c:2479)
[   47.211002][ T1623]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   47.211003][ T1623]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   47.211005][ T1623]  ? lock_pin_lock (kernel/locking/lockdep.c:5640 (discriminator 2) kernel/locking/lockdep.c:6003 (discriminator 2) kernel/locking/lockdep.c:5991 (discriminator 2))
[   47.211007][ T1623]  ? __print_lock_name (kernel/locking/lockdep.c:718)
[   47.211011][ T1623]  _printk (kernel/printk/printk.c:2504)
[   47.211015][ T1623]  ? snapshot_read.cold (user.c:?)
[   47.211016][ T1623]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   47.211019][ T1623]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   47.211022][ T1623]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   47.211024][ T1623]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   47.211028][ T1623]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   47.211031][ T1623]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   47.211033][ T1623]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   47.211036][ T1623]  ? netdev_notice (net/core/dev.c:13194)
[   47.211039][ T1623]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   47.211041][ T1623]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   47.211044][ T1623]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   47.211047][ T1623]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   47.211049][ T1623]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   47.211051][ T1623]  ? 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))
[   47.211057][ T1623]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   47.211059][ T1623]  ? __kernel_text_address (kernel/extable.c:79)
[   47.211062][ T1623]  ? write_profile (profile.c:?)
[   47.211066][ T1623]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   47.211072][ T1623]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   47.211075][ T1623]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   47.211077][ T1623]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   47.211079][ T1623]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   47.211081][ T1623]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   47.211084][ T1623]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   47.211086][ T1623]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   47.211088][ T1623]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   47.211090][ T1623]  ? kasan_save_stack (mm/kasan/common.c:58)
[   47.211092][ T1623]  ? kasan_save_stack (mm/kasan/common.c:57)
[   47.211093][ T1623]  ? kasan_save_track (mm/kasan/common.c:78)
[   47.211094][ T1623]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   47.211097][ T1623]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   47.211098][ T1623]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   47.211101][ T1623]  ? ___sys_sendmsg (net/socket.c:2758)
[   47.211105][ T1623]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   47.211107][ T1623]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   47.211110][ T1623]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   47.211111][ T1623]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   47.211113][ T1623]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   47.211114][ T1623]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   47.211116][ T1623]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   47.211118][ T1623]  ? __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)
[   47.211121][ T1623]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   47.211123][ T1623]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   47.211126][ T1623]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   47.211127][ T1623]  ? nla_get_range_signed (lib/nlattr.c:270)
[   47.211132][ T1623]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   47.211134][ T1623]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   47.211139][ T1623]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   47.211144][ T1623]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   47.211146][ T1623]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   47.211151][ T1623]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   47.211153][ T1623]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   47.211154][ T1623]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   47.211156][ T1623]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   47.211160][ T1623]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   47.211162][ T1623]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   47.211165][ T1623]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   47.211166][ T1623]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   47.211171][ T1623]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   47.211172][ T1623]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   47.211176][ T1623]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   47.211179][ T1623]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   47.211182][ T1623]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   47.211188][ T1623]  ? 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))
[   47.211190][ T1623]  ? 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))
[   47.211195][ T1623]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   47.211199][ T1623]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   47.211201][ T1623]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   47.211205][ T1623]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   47.211209][ T1623]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   47.211213][ T1623]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   47.211214][ T1623]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   47.211220][ T1623]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   47.211223][ T1623]  ____sys_sendmsg (net/socket.c:2713)
[   47.211225][ T1623]  ? copy_msghdr_from_user (net/socket.c:2650)
[   47.211227][ T1623]  ? sock_write_iter (net/socket.c:1269)
[   47.211229][ T1623]  ? move_addr_to_kernel (net/socket.c:258)
[   47.211236][ T1623]  ___sys_sendmsg (net/socket.c:2767)
[   47.211238][ T1623]  ? copy_msghdr_from_user (net/socket.c:2619)
[   47.211254][ T1623]  __sys_sendmsg (net/socket.c:2799)
[   47.211257][ T1623]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   47.211263][ T1623]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   47.211266][ T1623]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   47.211269][ T1623]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   47.211272][ T1623]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   47.211274][ T1623] RIP: 0033:0x7fc4e715854e
[   47.211278][ T1623] 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
[   47.211280][ T1623] RSP: 002b:00007ffe449794d0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   47.211282][ T1623] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fc4e715854e
[   47.211284][ T1623] RDX: 0000000000000000 RSI: 00007ffe44979580 RDI: 0000000000000005
[   47.211284][ T1623] RBP: 00007ffe449794e0 R08: 0000000000000000 R09: 0000000000000000
[   47.211285][ T1623] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90ee66
[   47.211286][ T1623] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffe44979c50
| [   59.039136][ T1933] softirqs last disabled at (15178): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   59.039139][ T1933] Preemption disabled at:
| [   59.039139][ T1933] vprintk_emit (kernel/printk/printk.c:2471)
| [   59.039147][ T1933] Tainted: [W]=WARN
[   59.039148][ T1933] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   59.039150][ T1933] Call Trace:
[   59.039152][ T1933]  <TASK>
[   59.039153][ T1933]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   59.039159][ T1933]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   59.039160][ T1933]  __might_resched.cold (kernel/sched/core.c:9234)
[   59.039165][ T1933]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   59.039169][ T1933]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   59.039174][ T1933]  __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))
[   59.039176][ T1933]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   59.039182][ T1933]  ? 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)
[   59.039184][ T1933]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   59.039188][ T1933]  put_chars (drivers/char/virtio_console.c:1176)
[   59.039190][ T1933]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   59.039192][ T1933]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   59.039195][ T1933]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   59.039200][ T1933]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   59.039208][ T1933]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   59.039210][ T1933]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   59.039212][ T1933]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   59.039216][ T1933]  console_emit_next_record (kernel/printk/printk.c:3183)
[   59.039220][ T1933]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   59.039222][ T1933]  ? 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))
[   59.039225][ T1933]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   59.039226][ T1933]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   59.039230][ T1933]  console_flush_one_record (kernel/printk/printk.c:3268)
[   59.039234][ T1933]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   59.039236][ T1933]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   59.039241][ T1933]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   59.039244][ T1933]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   59.039246][ T1933]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   59.039247][ T1933]  ? 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)
[   59.039251][ T1933]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   59.039253][ T1933]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   59.039256][ T1933]  vprintk_emit (kernel/printk/printk.c:2479)
[   59.039259][ T1933]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   59.039260][ T1933]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   59.039263][ T1933]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   59.039267][ T1933]  _printk (kernel/printk/printk.c:2504)
[   59.039270][ T1933]  ? snapshot_read.cold (user.c:?)
[   59.039273][ T1933]  ? br_multicast_flood (??:?)
[   59.039276][ T1933]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   59.039278][ T1933]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   59.039279][ T1933]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   59.039283][ T1933]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   59.039287][ T1933]  br_init_port (net/bridge/br_stp_if.c:39)
[   59.039290][ T1933]  new_nbp (net/bridge/br_if.c:449)
[   59.039293][ T1933]  br_add_if (net/bridge/br_if.c:592)
[   59.039296][ T1933]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   59.039299][ T1933]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   59.039304][ T1933]  do_set_master (net/core/rtnetlink.c:3071)
[   59.039308][ T1933]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   59.039311][ T1933]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   59.039314][ T1933]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   59.039315][ T1933]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   59.039318][ T1933]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   59.039321][ T1933]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   59.039323][ T1933]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   59.039325][ T1933]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   59.039327][ T1933]  ? kasan_save_stack (mm/kasan/common.c:58)
[   59.039330][ T1933]  ? kasan_save_stack (mm/kasan/common.c:57)
[   59.039331][ T1933]  ? kasan_save_track (mm/kasan/common.c:78)
[   59.039332][ T1933]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   59.039334][ T1933]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   59.039336][ T1933]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   59.039339][ T1933]  ? ___sys_sendmsg (net/socket.c:2758)
[   59.039342][ T1933]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   59.039344][ T1933]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   59.039347][ T1933]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   59.039349][ T1933]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   59.039350][ T1933]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   59.039351][ T1933]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   59.039353][ T1933]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   59.039355][ T1933]  ? __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)
[   59.039358][ T1933]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   59.039359][ T1933]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   59.039363][ T1933]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   59.039364][ T1933]  ? nla_get_range_signed (lib/nlattr.c:270)
[   59.039368][ T1933]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   59.039371][ T1933]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   59.039377][ T1933]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   59.039382][ T1933]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   59.039383][ T1933]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   59.039388][ T1933]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   59.039390][ T1933]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   59.039392][ T1933]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   59.039393][ T1933]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   59.039397][ T1933]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   59.039399][ T1933]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   59.039402][ T1933]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   59.039403][ T1933]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   59.039408][ T1933]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   59.039410][ T1933]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   59.039413][ T1933]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   59.039416][ T1933]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   59.039419][ T1933]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   59.039425][ T1933]  ? 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))
[   59.039427][ T1933]  ? 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))
[   59.039431][ T1933]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   59.039435][ T1933]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   59.039438][ T1933]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   59.039442][ T1933]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   59.039446][ T1933]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   59.039450][ T1933]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   59.039451][ T1933]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   59.039456][ T1933]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   59.039459][ T1933]  ____sys_sendmsg (net/socket.c:2713)
[   59.039461][ T1933]  ? copy_msghdr_from_user (net/socket.c:2650)
[   59.039464][ T1933]  ? sock_write_iter (net/socket.c:1269)
[   59.039465][ T1933]  ? move_addr_to_kernel (net/socket.c:258)
[   59.039472][ T1933]  ___sys_sendmsg (net/socket.c:2767)
[   59.039475][ T1933]  ? copy_msghdr_from_user (net/socket.c:2619)
[   59.039490][ T1933]  __sys_sendmsg (net/socket.c:2799)
[   59.039493][ T1933]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   59.039499][ T1933]  ? fpregs_restore_userregs (./include/linux/instrumented.h:97 ./include/asm-generic/bitops/instrumented-atomic.h:41 ./include/linux/thread_info.h:109 arch/x86/kernel/fpu/context.h:79)
[   59.039502][ T1933]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   59.039505][ T1933]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   59.039507][ T1933]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   59.039510][ T1933]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   59.039512][ T1933] RIP: 0033:0x7f76c4c7d54e
[   59.039516][ T1933] 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
[   59.039522][ T1933] RSP: 002b:00007ffffb4444f0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   59.039524][ T1933] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f76c4c7d54e
[   59.039526][ T1933] RDX: 0000000000000000 RSI: 00007ffffb4445a0 RDI: 0000000000000005
[   59.039527][ T1933] RBP: 00007ffffb444500 R08: 0000000000000000 R09: 0000000000000000
[   59.039527][ T1933] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90ee72
[   59.039528][ T1933] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffffb444c70
| [   60.367663][ T2019] softirqs last disabled at (23395): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   60.367666][ T2019] Preemption disabled at:
| [   60.367666][ T2019] vprintk_emit (kernel/printk/printk.c:2471)
| [   60.367675][ T2019] Tainted: [W]=WARN
[   60.367676][ T2019] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   60.367677][ T2019] Call Trace:
[   60.367679][ T2019]  <TASK>
[   60.367681][ T2019]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   60.367686][ T2019]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   60.367688][ T2019]  __might_resched.cold (kernel/sched/core.c:9234)
[   60.367693][ T2019]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   60.367697][ T2019]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   60.367701][ T2019]  __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))
[   60.367703][ T2019]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   60.367709][ T2019]  ? 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)
[   60.367712][ T2019]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   60.367715][ T2019]  put_chars (drivers/char/virtio_console.c:1176)
[   60.367718][ T2019]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   60.367719][ T2019]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   60.367723][ T2019]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   60.367728][ T2019]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   60.367736][ T2019]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   60.367738][ T2019]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   60.367740][ T2019]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   60.367744][ T2019]  console_emit_next_record (kernel/printk/printk.c:3183)
[   60.367748][ T2019]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   60.367750][ T2019]  ? 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))
[   60.367753][ T2019]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   60.367755][ T2019]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   60.367759][ T2019]  console_flush_one_record (kernel/printk/printk.c:3268)
[   60.367763][ T2019]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   60.367765][ T2019]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   60.367770][ T2019]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   60.367773][ T2019]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   60.367775][ T2019]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   60.367777][ T2019]  ? 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)
[   60.367780][ T2019]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   60.367782][ T2019]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   60.367785][ T2019]  vprintk_emit (kernel/printk/printk.c:2479)
[   60.367788][ T2019]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   60.367790][ T2019]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   60.367792][ T2019]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   60.367796][ T2019]  _printk (kernel/printk/printk.c:2504)
[   60.367799][ T2019]  ? snapshot_read.cold (user.c:?)
[   60.367803][ T2019]  ? br_multicast_flood (??:?)
[   60.367806][ T2019]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   60.367807][ T2019]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   60.367809][ T2019]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   60.367813][ T2019]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   60.367817][ T2019]  br_init_port (net/bridge/br_stp_if.c:39)
[   60.367820][ T2019]  new_nbp (net/bridge/br_if.c:449)
[   60.367823][ T2019]  br_add_if (net/bridge/br_if.c:592)
[   60.367826][ T2019]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   60.367830][ T2019]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   60.367835][ T2019]  do_set_master (net/core/rtnetlink.c:3071)
[   60.367838][ T2019]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   60.367842][ T2019]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   60.367845][ T2019]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   60.367846][ T2019]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   60.367849][ T2019]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   60.367852][ T2019]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   60.367854][ T2019]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   60.367856][ T2019]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   60.367858][ T2019]  ? kasan_save_stack (mm/kasan/common.c:58)
[   60.367860][ T2019]  ? kasan_save_stack (mm/kasan/common.c:57)
[   60.367861][ T2019]  ? kasan_save_track (mm/kasan/common.c:78)
[   60.367863][ T2019]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   60.367865][ T2019]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   60.367867][ T2019]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   60.367870][ T2019]  ? ___sys_sendmsg (net/socket.c:2758)
[   60.367874][ T2019]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   60.367875][ T2019]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   60.367878][ T2019]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   60.367880][ T2019]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   60.367881][ T2019]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   60.367882][ T2019]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   60.367884][ T2019]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   60.367886][ T2019]  ? __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)
[   60.367889][ T2019]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   60.367891][ T2019]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   60.367894][ T2019]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   60.367895][ T2019]  ? nla_get_range_signed (lib/nlattr.c:270)
[   60.367900][ T2019]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   60.367903][ T2019]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   60.367908][ T2019]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   60.367913][ T2019]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   60.367915][ T2019]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   60.367919][ T2019]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   60.367921][ T2019]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   60.367923][ T2019]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   60.367925][ T2019]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   60.367929][ T2019]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   60.367931][ T2019]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   60.367934][ T2019]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   60.367935][ T2019]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   60.367940][ T2019]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   60.367941][ T2019]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   60.367945][ T2019]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   60.367948][ T2019]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   60.367951][ T2019]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   60.367962][ T2019]  ? 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))
[   60.367964][ T2019]  ? 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))
[   60.367968][ T2019]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   60.367972][ T2019]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   60.367975][ T2019]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   60.367979][ T2019]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   60.367983][ T2019]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   60.367986][ T2019]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   60.367988][ T2019]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   60.367993][ T2019]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   60.367996][ T2019]  ____sys_sendmsg (net/socket.c:2713)
[   60.367998][ T2019]  ? copy_msghdr_from_user (net/socket.c:2650)
[   60.368000][ T2019]  ? sock_write_iter (net/socket.c:1269)
[   60.368002][ T2019]  ? move_addr_to_kernel (net/socket.c:258)
[   60.368009][ T2019]  ___sys_sendmsg (net/socket.c:2767)
[   60.368012][ T2019]  ? copy_msghdr_from_user (net/socket.c:2619)
[   60.368027][ T2019]  __sys_sendmsg (net/socket.c:2799)
[   60.368030][ T2019]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   60.368036][ T2019]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   60.368039][ T2019]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   60.368042][ T2019]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   60.368045][ T2019]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   60.368047][ T2019] RIP: 0033:0x7fb99e6e354e
[   60.368050][ T2019] 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
[   60.368052][ T2019] RSP: 002b:00007ffcb1ee43a0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   60.368055][ T2019] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fb99e6e354e
[   60.368056][ T2019] RDX: 0000000000000000 RSI: 00007ffcb1ee4450 RDI: 0000000000000005
[   60.368057][ T2019] RBP: 00007ffcb1ee43b0 R08: 0000000000000000 R09: 0000000000000000
[   60.368058][ T2019] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90ee73
[   60.368058][ T2019] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffcb1ee4b20
| [   61.638747][ T2093] softirqs last disabled at (15372): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   61.638749][ T2093] Preemption disabled at:
| [   61.638750][ T2093] vprintk_emit (kernel/printk/printk.c:2471)
| [   61.638759][ T2093] Tainted: [W]=WARN
[   61.638760][ T2093] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   61.638761][ T2093] Call Trace:
[   61.638763][ T2093]  <TASK>
[   61.638764][ T2093]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   61.638770][ T2093]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   61.638772][ T2093]  __might_resched.cold (kernel/sched/core.c:9234)
[   61.638777][ T2093]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   61.638781][ T2093]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   61.638786][ T2093]  __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))
[   61.638788][ T2093]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   61.638795][ T2093]  ? 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)
[   61.638797][ T2093]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   61.638801][ T2093]  put_chars (drivers/char/virtio_console.c:1176)
[   61.638804][ T2093]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   61.638805][ T2093]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   61.638808][ T2093]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   61.638814][ T2093]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   61.638822][ T2093]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   61.638825][ T2093]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   61.638827][ T2093]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   61.638831][ T2093]  console_emit_next_record (kernel/printk/printk.c:3183)
[   61.638835][ T2093]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   61.638837][ T2093]  ? 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))
[   61.638841][ T2093]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   61.638842][ T2093]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   61.638846][ T2093]  console_flush_one_record (kernel/printk/printk.c:3268)
[   61.638851][ T2093]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   61.638853][ T2093]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   61.638858][ T2093]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   61.638861][ T2093]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   61.638863][ T2093]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   61.638865][ T2093]  ? 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)
[   61.638869][ T2093]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   61.638871][ T2093]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   61.638873][ T2093]  vprintk_emit (kernel/printk/printk.c:2479)
[   61.638877][ T2093]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   61.638879][ T2093]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   61.638882][ T2093]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   61.638885][ T2093]  _printk (kernel/printk/printk.c:2504)
[   61.638889][ T2093]  ? snapshot_read.cold (user.c:?)
[   61.638893][ T2093]  ? br_multicast_flood (??:?)
[   61.638896][ T2093]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   61.638898][ T2093]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   61.638899][ T2093]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   61.638903][ T2093]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   61.638908][ T2093]  br_init_port (net/bridge/br_stp_if.c:39)
[   61.638910][ T2093]  new_nbp (net/bridge/br_if.c:449)
[   61.638914][ T2093]  br_add_if (net/bridge/br_if.c:592)
[   61.638917][ T2093]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   61.638920][ T2093]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   61.638926][ T2093]  do_set_master (net/core/rtnetlink.c:3071)
[   61.638930][ T2093]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   61.638933][ T2093]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   61.638936][ T2093]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   61.638938][ T2093]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   61.638940][ T2093]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   61.638944][ T2093]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   61.638946][ T2093]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   61.638948][ T2093]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   61.638950][ T2093]  ? kasan_save_stack (mm/kasan/common.c:58)
[   61.638953][ T2093]  ? kasan_save_stack (mm/kasan/common.c:57)
[   61.638954][ T2093]  ? kasan_save_track (mm/kasan/common.c:78)
[   61.638955][ T2093]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   61.638958][ T2093]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   61.638963][ T2093]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   61.638966][ T2093]  ? ___sys_sendmsg (net/socket.c:2758)
[   61.638970][ T2093]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   61.638972][ T2093]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   61.638975][ T2093]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   61.638976][ T2093]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   61.638978][ T2093]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   61.638979][ T2093]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   61.638981][ T2093]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   61.638983][ T2093]  ? __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)
[   61.638986][ T2093]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   61.638988][ T2093]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   61.638991][ T2093]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   61.638992][ T2093]  ? nla_get_range_signed (lib/nlattr.c:270)
[   61.638997][ T2093]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   61.639000][ T2093]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   61.639005][ T2093]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   61.639010][ T2093]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   61.639012][ T2093]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   61.639017][ T2093]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   61.639019][ T2093]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   61.639021][ T2093]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   61.639023][ T2093]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   61.639026][ T2093]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   61.639028][ T2093]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   61.639031][ T2093]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   61.639033][ T2093]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   61.639037][ T2093]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   61.639039][ T2093]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   61.639043][ T2093]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   61.639046][ T2093]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   61.639049][ T2093]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   61.639055][ T2093]  ? 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))
[   61.639057][ T2093]  ? 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))
[   61.639062][ T2093]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   61.639066][ T2093]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   61.639068][ T2093]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   61.639073][ T2093]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   61.639077][ T2093]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   61.639080][ T2093]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   61.639082][ T2093]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   61.639088][ T2093]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   61.639090][ T2093]  ____sys_sendmsg (net/socket.c:2713)
[   61.639093][ T2093]  ? copy_msghdr_from_user (net/socket.c:2650)
[   61.639095][ T2093]  ? sock_write_iter (net/socket.c:1269)
[   61.639097][ T2093]  ? move_addr_to_kernel (net/socket.c:258)
[   61.639104][ T2093]  ___sys_sendmsg (net/socket.c:2767)
[   61.639107][ T2093]  ? copy_msghdr_from_user (net/socket.c:2619)
[   61.639123][ T2093]  __sys_sendmsg (net/socket.c:2799)
[   61.639126][ T2093]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   61.639132][ T2093]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   61.639135][ T2093]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   61.639138][ T2093]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   61.639141][ T2093]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   61.639143][ T2093] RIP: 0033:0x7fa24262854e
[   61.639147][ T2093] 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
[   61.639148][ T2093] RSP: 002b:00007fff6f93ea00 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   61.639151][ T2093] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fa24262854e
[   61.639153][ T2093] RDX: 0000000000000000 RSI: 00007fff6f93eab0 RDI: 0000000000000005
[   61.639154][ T2093] RBP: 00007fff6f93ea10 R08: 0000000000000000 R09: 0000000000000000
[   61.639154][ T2093] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90ee74
[   61.639155][ T2093] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fff6f93f180
| [   62.929014][ T2165] softirqs last disabled at (28900): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   62.929016][ T2165] Preemption disabled at:
| [   62.929017][ T2165] vprintk_emit (kernel/printk/printk.c:2471)
| [   62.929025][ T2165] Tainted: [W]=WARN
[   62.929026][ T2165] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   62.929028][ T2165] Call Trace:
[   62.929029][ T2165]  <TASK>
[   62.929031][ T2165]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   62.929036][ T2165]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   62.929038][ T2165]  __might_resched.cold (kernel/sched/core.c:9234)
[   62.929043][ T2165]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   62.929047][ T2165]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   62.929051][ T2165]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   62.929053][ T2165]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   62.929060][ T2165]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   62.929062][ T2165]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   62.929066][ T2165]  put_chars (drivers/char/virtio_console.c:1176)
[   62.929068][ T2165]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   62.929070][ T2165]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   62.929073][ T2165]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   62.929079][ T2165]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   62.929086][ T2165]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   62.929089][ T2165]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   62.929091][ T2165]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   62.929095][ T2165]  console_emit_next_record (kernel/printk/printk.c:3183)
[   62.929099][ T2165]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   62.929101][ T2165]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   62.929104][ T2165]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   62.929105][ T2165]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   62.929109][ T2165]  console_flush_one_record (kernel/printk/printk.c:3268)
[   62.929114][ T2165]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   62.929116][ T2165]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   62.929121][ T2165]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   62.929124][ T2165]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   62.929126][ T2165]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   62.929127][ T2165]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   62.929131][ T2165]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   62.929133][ T2165]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   62.929136][ T2165]  vprintk_emit (kernel/printk/printk.c:2479)
[   62.929139][ T2165]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   62.929141][ T2165]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   62.929144][ T2165]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   62.929147][ T2165]  _printk (kernel/printk/printk.c:2504)
[   62.929150][ T2165]  ? snapshot_read.cold (user.c:?)
[   62.929154][ T2165]  ? br_multicast_flood (??:?)
[   62.929157][ T2165]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   62.929159][ T2165]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   62.929160][ T2165]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   62.929164][ T2165]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   62.929168][ T2165]  br_init_port (net/bridge/br_stp_if.c:39)
[   62.929171][ T2165]  new_nbp (net/bridge/br_if.c:449)
[   62.929175][ T2165]  br_add_if (net/bridge/br_if.c:592)
[   62.929177][ T2165]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   62.929180][ T2165]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   62.929186][ T2165]  do_set_master (net/core/rtnetlink.c:3071)
[   62.929190][ T2165]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   62.929193][ T2165]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   62.929196][ T2165]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   62.929197][ T2165]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   62.929200][ T2165]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   62.929204][ T2165]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   62.929205][ T2165]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   62.929207][ T2165]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   62.929210][ T2165]  ? kasan_save_stack (mm/kasan/common.c:58)
[   62.929212][ T2165]  ? kasan_save_stack (mm/kasan/common.c:57)
[   62.929213][ T2165]  ? kasan_save_track (mm/kasan/common.c:78)
[   62.929214][ T2165]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   62.929217][ T2165]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   62.929219][ T2165]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   62.929221][ T2165]  ? ___sys_sendmsg (net/socket.c:2758)
[   62.929225][ T2165]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   62.929227][ T2165]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   62.929230][ T2165]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   62.929232][ T2165]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   62.929233][ T2165]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   62.929234][ T2165]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   62.929236][ T2165]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   62.929238][ T2165]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   62.929240][ T2165]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   62.929242][ T2165]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   62.929246][ T2165]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   62.929247][ T2165]  ? nla_get_range_signed (lib/nlattr.c:270)
[   62.929252][ T2165]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   62.929254][ T2165]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   62.929259][ T2165]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   62.929265][ T2165]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   62.929267][ T2165]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   62.929271][ T2165]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   62.929273][ T2165]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   62.929275][ T2165]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   62.929277][ T2165]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   62.929281][ T2165]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   62.929283][ T2165]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   62.929286][ T2165]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   62.929287][ T2165]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   62.929291][ T2165]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   62.929293][ T2165]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   62.929297][ T2165]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   62.929300][ T2165]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   62.929303][ T2165]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   62.929309][ T2165]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   62.929311][ T2165]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   62.929315][ T2165]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   62.929319][ T2165]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   62.929322][ T2165]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   62.929326][ T2165]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   62.929330][ T2165]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   62.929334][ T2165]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   62.929335][ T2165]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   62.929340][ T2165]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   62.929343][ T2165]  ____sys_sendmsg (net/socket.c:2713)
[   62.929345][ T2165]  ? copy_msghdr_from_user (net/socket.c:2650)
[   62.929348][ T2165]  ? sock_write_iter (net/socket.c:1269)
[   62.929349][ T2165]  ? move_addr_to_kernel (net/socket.c:258)
[   62.929356][ T2165]  ___sys_sendmsg (net/socket.c:2767)
[   62.929359][ T2165]  ? copy_msghdr_from_user (net/socket.c:2619)
[   62.929377][ T2165]  __sys_sendmsg (net/socket.c:2799)
[   62.929380][ T2165]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   62.929386][ T2165]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   62.929389][ T2165]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   62.929392][ T2165]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   62.929395][ T2165]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   62.929397][ T2165] RIP: 0033:0x7fdf154e254e
[   62.929401][ T2165] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   62.929402][ T2165] RSP: 002b:00007fff3220c650 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   62.929405][ T2165] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fdf154e254e
[   62.929406][ T2165] RDX: 0000000000000000 RSI: 00007fff3220c700 RDI: 0000000000000005
[   62.929407][ T2165] RBP: 00007fff3220c660 R08: 0000000000000000 R09: 0000000000000000
[   62.929408][ T2165] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90ee76
[   62.929409][ T2165] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fff3220cdd0
| [   64.238386][   T12] softirqs last disabled at (708616): inet6_fill_ifla6_attrs (net/ipv6/addrconf.c:5883)
| [   64.238388][   T12] Preemption disabled at:
| [   64.238389][   T12] vprintk_emit (kernel/printk/printk.c:2471)
| [   64.238397][   T12] Tainted: [W]=WARN
[   64.238398][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   64.238399][   T12] Workqueue: netns cleanup_net
[   64.238403][   T12] Call Trace:
[   64.238404][   T12]  <TASK>
[   64.238406][   T12]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   64.238412][   T12]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   64.238414][   T12]  __might_resched.cold (kernel/sched/core.c:9234)
[   64.238419][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   64.238422][   T12]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   64.238427][   T12]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   64.238429][   T12]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   64.238435][   T12]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   64.238438][   T12]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   64.238442][   T12]  put_chars (drivers/char/virtio_console.c:1176)
[   64.238444][   T12]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   64.238445][   T12]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   64.238449][   T12]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   64.238452][   T12]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   64.238457][   T12]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   64.238461][   T12]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   64.238466][   T12]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   64.238470][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   64.238474][   T12]  console_emit_next_record (kernel/printk/printk.c:3183)
[   64.238478][   T12]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   64.238480][   T12]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   64.238483][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   64.238485][   T12]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   64.238489][   T12]  console_flush_one_record (kernel/printk/printk.c:3268)
[   64.238493][   T12]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   64.238495][   T12]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   64.238501][   T12]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   64.238504][   T12]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   64.238506][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   64.238507][   T12]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   64.238511][   T12]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   64.238513][   T12]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   64.238516][   T12]  vprintk_emit (kernel/printk/printk.c:2479)
[   64.238523][   T12]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   64.238525][   T12]  ? cleanup_net (net/core/net_namespace.c:706)
[   64.238527][   T12]  ? worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   64.238528][   T12]  ? kthread (kernel/kthread.c:436)
[   64.238530][   T12]  ? ret_from_fork (arch/x86/kernel/process.c:158)
[   64.238534][   T12]  ? ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
[   64.238538][   T12]  _printk (kernel/printk/printk.c:2504)
[   64.238542][   T12]  ? snapshot_read.cold (user.c:?)
[   64.238546][   T12]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   64.238550][   T12]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   64.238554][   T12]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   64.238557][   T12]  ? netdev_notice (net/core/dev.c:13194)
[   64.238561][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   64.238563][   T12]  ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1))
[   64.238566][   T12]  ? down_write_nested (kernel/locking/rwsem.c:1759)
[   64.238568][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   64.238570][   T12]  netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3))
[   64.238574][   T12]  dev_set_allmulti (net/core/dev_api.c:315)
[   64.238578][   T12]  del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341)
[   64.238584][   T12]  br_dev_delete (net/bridge/br_if.c:387)
[   64.238588][   T12]  br_net_exit_rtnl (net/bridge/br.c:414)
[   64.238591][   T12]  ops_undo_list (net/core/net_namespace.c:181 net/core/net_namespace.c:249)
[   64.238595][   T12]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   64.238599][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   64.238600][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   64.238603][   T12]  ? idr_destroy (lib/radix-tree.c:310 lib/radix-tree.c:674 lib/radix-tree.c:1563)
[   64.238608][   T12]  cleanup_net (net/core/net_namespace.c:706)
[   64.238611][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   64.238615][   T12]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   64.238617][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   64.238621][   T12]  process_one_work (kernel/workqueue.c:3387)
[   64.238628][   T12]  ? __queue_delayed_work (kernel/workqueue.c:2622)
[   64.238631][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   64.238638][   T12]  worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   64.238646][   T12]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   64.238648][   T12]  kthread (kernel/kthread.c:436)
[   64.238650][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   64.238653][   T12]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   64.238656][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   64.238659][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1))
[   64.238662][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   64.238666][   T12]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   64.238669][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   65.591043][ T2310] softirqs last disabled at (19112): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   65.591046][ T2310] Preemption disabled at:
| [   65.591046][ T2310] vprintk_emit (kernel/printk/printk.c:2471)
| [   65.591055][ T2310] Tainted: [W]=WARN
[   65.591056][ T2310] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   65.591057][ T2310] Call Trace:
[   65.591059][ T2310]  <TASK>
[   65.591061][ T2310]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   65.591066][ T2310]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   65.591068][ T2310]  __might_resched.cold (kernel/sched/core.c:9234)
[   65.591073][ T2310]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   65.591077][ T2310]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   65.591082][ T2310]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   65.591083][ T2310]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   65.591090][ T2310]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   65.591092][ T2310]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   65.591096][ T2310]  put_chars (drivers/char/virtio_console.c:1176)
[   65.591098][ T2310]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   65.591105][ T2310]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   65.591112][ T2310]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   65.591115][ T2310]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   65.591120][ T2310]  console_emit_next_record (kernel/printk/printk.c:3183)
[   65.591124][ T2310]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   65.591126][ T2310]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   65.591129][ T2310]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   65.591132][ T2310]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   65.591136][ T2310]  console_flush_one_record (kernel/printk/printk.c:3268)
[   65.591140][ T2310]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   65.591142][ T2310]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   65.591147][ T2310]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   65.591150][ T2310]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   65.591152][ T2310]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   65.591153][ T2310]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   65.591157][ T2310]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   65.591159][ T2310]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   65.591161][ T2310]  vprintk_emit (kernel/printk/printk.c:2479)
[   65.591165][ T2310]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   65.591167][ T2310]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   65.591168][ T2310]  ? lock_pin_lock (kernel/locking/lockdep.c:5640 (discriminator 2) kernel/locking/lockdep.c:6003 (discriminator 2) kernel/locking/lockdep.c:5991 (discriminator 2))
[   65.591170][ T2310]  ? __print_lock_name (kernel/locking/lockdep.c:718)
[   65.591174][ T2310]  _printk (kernel/printk/printk.c:2504)
[   65.591178][ T2310]  ? snapshot_read.cold (user.c:?)
[   65.591179][ T2310]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   65.591182][ T2310]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   65.591185][ T2310]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   65.591187][ T2310]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   65.591191][ T2310]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   65.591193][ T2310]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   65.591195][ T2310]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   65.591198][ T2310]  ? netdev_notice (net/core/dev.c:13194)
[   65.591201][ T2310]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   65.591204][ T2310]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   65.591206][ T2310]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   65.591210][ T2310]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   65.591212][ T2310]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   65.591214][ T2310]  ? 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))
[   65.591220][ T2310]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   65.591222][ T2310]  ? __kernel_text_address (kernel/extable.c:79)
[   65.591224][ T2310]  ? write_profile (profile.c:?)
[   65.591228][ T2310]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   65.591234][ T2310]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   65.591237][ T2310]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   65.591239][ T2310]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   65.591241][ T2310]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   65.591242][ T2310]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   65.591246][ T2310]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   65.591248][ T2310]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   65.591249][ T2310]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   65.591252][ T2310]  ? kasan_save_stack (mm/kasan/common.c:58)
[   65.591253][ T2310]  ? kasan_save_stack (mm/kasan/common.c:57)
[   65.591255][ T2310]  ? kasan_save_track (mm/kasan/common.c:78)
[   65.591256][ T2310]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   65.591258][ T2310]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   65.591260][ T2310]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   65.591263][ T2310]  ? ___sys_sendmsg (net/socket.c:2758)
[   65.591267][ T2310]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   65.591268][ T2310]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   65.591271][ T2310]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   65.591273][ T2310]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   65.591274][ T2310]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   65.591275][ T2310]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   65.591277][ T2310]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   65.591279][ T2310]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   65.591282][ T2310]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   65.591284][ T2310]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   65.591287][ T2310]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   65.591288][ T2310]  ? nla_get_range_signed (lib/nlattr.c:270)
[   65.591293][ T2310]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   65.591295][ T2310]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   65.591300][ T2310]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   65.591305][ T2310]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   65.591307][ T2310]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   65.591312][ T2310]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   65.591313][ T2310]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   65.591315][ T2310]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   65.591317][ T2310]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   65.591321][ T2310]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   65.591323][ T2310]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   65.591326][ T2310]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   65.591327][ T2310]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   65.591332][ T2310]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   65.591333][ T2310]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   65.591337][ T2310]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   65.591340][ T2310]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   65.591343][ T2310]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   65.591349][ T2310]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   65.591351][ T2310]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   65.591355][ T2310]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   65.591359][ T2310]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   65.591362][ T2310]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   65.591366][ T2310]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   65.591371][ T2310]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   65.591375][ T2310]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   65.591376][ T2310]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   65.591382][ T2310]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   65.591384][ T2310]  ____sys_sendmsg (net/socket.c:2713)
[   65.591387][ T2310]  ? copy_msghdr_from_user (net/socket.c:2650)
[   65.591389][ T2310]  ? sock_write_iter (net/socket.c:1269)
[   65.591390][ T2310]  ? move_addr_to_kernel (net/socket.c:258)
[   65.591398][ T2310]  ___sys_sendmsg (net/socket.c:2767)
[   65.591400][ T2310]  ? copy_msghdr_from_user (net/socket.c:2619)
[   65.591416][ T2310]  __sys_sendmsg (net/socket.c:2799)
[   65.591419][ T2310]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   65.591425][ T2310]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   65.591428][ T2310]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   65.591431][ T2310]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   65.591434][ T2310]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   65.591436][ T2310] RIP: 0033:0x7fec6c93554e
[   65.591440][ T2310] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   65.591441][ T2310] RSP: 002b:00007fff1f019640 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   65.591444][ T2310] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fec6c93554e
[   65.591445][ T2310] RDX: 0000000000000000 RSI: 00007fff1f0196f0 RDI: 0000000000000005
[   65.591446][ T2310] RBP: 00007fff1f019650 R08: 0000000000000000 R09: 0000000000000000
[   65.591447][ T2310] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90ee78
[   65.591448][ T2310] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fff1f019dc0
| [   77.414857][ T2618] softirqs last disabled at (23066): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   77.414860][ T2618] Preemption disabled at:
| [   77.414860][ T2618] vprintk_emit (kernel/printk/printk.c:2471)
| [   77.414868][ T2618] Tainted: [W]=WARN
[   77.414869][ T2618] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   77.414871][ T2618] Call Trace:
[   77.414873][ T2618]  <TASK>
[   77.414874][ T2618]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   77.414880][ T2618]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   77.414882][ T2618]  __might_resched.cold (kernel/sched/core.c:9234)
[   77.414886][ T2618]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   77.414890][ T2618]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   77.414894][ T2618]  __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))
[   77.414896][ T2618]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   77.414902][ T2618]  ? 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)
[   77.414905][ T2618]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   77.414908][ T2618]  put_chars (drivers/char/virtio_console.c:1176)
[   77.414911][ T2618]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   77.414912][ T2618]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   77.414916][ T2618]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   77.414921][ T2618]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   77.414928][ T2618]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   77.414931][ T2618]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   77.414933][ T2618]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   77.414937][ T2618]  console_emit_next_record (kernel/printk/printk.c:3183)
[   77.414940][ T2618]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   77.414942][ T2618]  ? 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))
[   77.414945][ T2618]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   77.414947][ T2618]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   77.414951][ T2618]  console_flush_one_record (kernel/printk/printk.c:3268)
[   77.414955][ T2618]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   77.414957][ T2618]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   77.414962][ T2618]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   77.414965][ T2618]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   77.414967][ T2618]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   77.414968][ T2618]  ? 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)
[   77.414972][ T2618]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   77.414973][ T2618]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   77.414976][ T2618]  vprintk_emit (kernel/printk/printk.c:2479)
[   77.414979][ T2618]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   77.414981][ T2618]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   77.414984][ T2618]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   77.414987][ T2618]  _printk (kernel/printk/printk.c:2504)
[   77.414991][ T2618]  ? snapshot_read.cold (user.c:?)
[   77.414994][ T2618]  ? br_multicast_flood (??:?)
[   77.414998][ T2618]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   77.414999][ T2618]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   77.415000][ T2618]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   77.415004][ T2618]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   77.415009][ T2618]  br_init_port (net/bridge/br_stp_if.c:39)
[   77.415011][ T2618]  new_nbp (net/bridge/br_if.c:449)
[   77.415021][ T2618]  br_add_if (net/bridge/br_if.c:592)
[   77.415024][ T2618]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   77.415027][ T2618]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   77.415032][ T2618]  do_set_master (net/core/rtnetlink.c:3071)
[   77.415035][ T2618]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   77.415039][ T2618]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   77.415042][ T2618]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   77.415043][ T2618]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   77.415046][ T2618]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   77.415049][ T2618]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   77.415051][ T2618]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   77.415053][ T2618]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   77.415055][ T2618]  ? kasan_save_stack (mm/kasan/common.c:58)
[   77.415058][ T2618]  ? kasan_save_stack (mm/kasan/common.c:57)
[   77.415059][ T2618]  ? kasan_save_track (mm/kasan/common.c:78)
[   77.415060][ T2618]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   77.415062][ T2618]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   77.415064][ T2618]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   77.415067][ T2618]  ? ___sys_sendmsg (net/socket.c:2758)
[   77.415070][ T2618]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   77.415072][ T2618]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   77.415075][ T2618]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   77.415077][ T2618]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   77.415078][ T2618]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   77.415079][ T2618]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   77.415081][ T2618]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   77.415083][ T2618]  ? __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)
[   77.415086][ T2618]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   77.415087][ T2618]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   77.415091][ T2618]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   77.415092][ T2618]  ? nla_get_range_signed (lib/nlattr.c:270)
[   77.415097][ T2618]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   77.415099][ T2618]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   77.415104][ T2618]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   77.415109][ T2618]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   77.415111][ T2618]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   77.415115][ T2618]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   77.415117][ T2618]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   77.415119][ T2618]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   77.415121][ T2618]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   77.415124][ T2618]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   77.415126][ T2618]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   77.415129][ T2618]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   77.415131][ T2618]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   77.415135][ T2618]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   77.415137][ T2618]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   77.415140][ T2618]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   77.415143][ T2618]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   77.415146][ T2618]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   77.415152][ T2618]  ? 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))
[   77.415155][ T2618]  ? 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))
[   77.415159][ T2618]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   77.415163][ T2618]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   77.415165][ T2618]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   77.415169][ T2618]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   77.415173][ T2618]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   77.415177][ T2618]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   77.415178][ T2618]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   77.415184][ T2618]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   77.415186][ T2618]  ____sys_sendmsg (net/socket.c:2713)
[   77.415189][ T2618]  ? copy_msghdr_from_user (net/socket.c:2650)
[   77.415191][ T2618]  ? sock_write_iter (net/socket.c:1269)
[   77.415192][ T2618]  ? move_addr_to_kernel (net/socket.c:258)
[   77.415200][ T2618]  ___sys_sendmsg (net/socket.c:2767)
[   77.415202][ T2618]  ? copy_msghdr_from_user (net/socket.c:2619)
[   77.415218][ T2618]  __sys_sendmsg (net/socket.c:2799)
[   77.415220][ T2618]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   77.415226][ T2618]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   77.415229][ T2618]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   77.415232][ T2618]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   77.415235][ T2618]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   77.415238][ T2618] RIP: 0033:0x7fc6380dc54e
[   77.415241][ T2618] 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
[   77.415243][ T2618] RSP: 002b:00007fffc38889a0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   77.415246][ T2618] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fc6380dc54e
[   77.415247][ T2618] RDX: 0000000000000000 RSI: 00007fffc3888a50 RDI: 0000000000000005
[   77.415248][ T2618] RBP: 00007fffc38889b0 R08: 0000000000000000 R09: 0000000000000000
[   77.415249][ T2618] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90ee84
[   77.415249][ T2618] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fffc3889120
| [   78.734231][ T2706] softirqs last disabled at (18060): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   78.734234][ T2706] Preemption disabled at:
| [   78.734234][ T2706] vprintk_emit (kernel/printk/printk.c:2471)
| [   78.734243][ T2706] Tainted: [W]=WARN
[   78.734244][ T2706] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   78.734246][ T2706] Call Trace:
[   78.734248][ T2706]  <TASK>
[   78.734249][ T2706]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   78.734255][ T2706]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   78.734257][ T2706]  __might_resched.cold (kernel/sched/core.c:9234)
[   78.734261][ T2706]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   78.734266][ T2706]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   78.734270][ T2706]  __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))
[   78.734272][ T2706]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   78.734279][ T2706]  ? 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)
[   78.734281][ T2706]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   78.734285][ T2706]  put_chars (drivers/char/virtio_console.c:1176)
[   78.734287][ T2706]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   78.734289][ T2706]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   78.734292][ T2706]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   78.734298][ T2706]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   78.734306][ T2706]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   78.734308][ T2706]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   78.734310][ T2706]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   78.734314][ T2706]  console_emit_next_record (kernel/printk/printk.c:3183)
[   78.734318][ T2706]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   78.734320][ T2706]  ? 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))
[   78.734323][ T2706]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   78.734325][ T2706]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   78.734329][ T2706]  console_flush_one_record (kernel/printk/printk.c:3268)
[   78.734333][ T2706]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   78.734335][ T2706]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   78.734341][ T2706]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   78.734344][ T2706]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   78.734345][ T2706]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   78.734347][ T2706]  ? 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)
[   78.734351][ T2706]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   78.734353][ T2706]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   78.734355][ T2706]  vprintk_emit (kernel/printk/printk.c:2479)
[   78.734359][ T2706]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   78.734360][ T2706]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   78.734363][ T2706]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   78.734367][ T2706]  _printk (kernel/printk/printk.c:2504)
[   78.734371][ T2706]  ? snapshot_read.cold (user.c:?)
[   78.734374][ T2706]  ? br_multicast_flood (??:?)
[   78.734378][ T2706]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   78.734379][ T2706]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   78.734380][ T2706]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   78.734385][ T2706]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   78.734389][ T2706]  br_init_port (net/bridge/br_stp_if.c:39)
[   78.734391][ T2706]  new_nbp (net/bridge/br_if.c:449)
[   78.734395][ T2706]  br_add_if (net/bridge/br_if.c:592)
[   78.734398][ T2706]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   78.734401][ T2706]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   78.734407][ T2706]  do_set_master (net/core/rtnetlink.c:3071)
[   78.734410][ T2706]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   78.734414][ T2706]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   78.734417][ T2706]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   78.734418][ T2706]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   78.734421][ T2706]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   78.734425][ T2706]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   78.734426][ T2706]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   78.734428][ T2706]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   78.734431][ T2706]  ? kasan_save_stack (mm/kasan/common.c:58)
[   78.734433][ T2706]  ? kasan_save_stack (mm/kasan/common.c:57)
[   78.734434][ T2706]  ? kasan_save_track (mm/kasan/common.c:78)
[   78.734436][ T2706]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   78.734438][ T2706]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   78.734440][ T2706]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   78.734442][ T2706]  ? ___sys_sendmsg (net/socket.c:2758)
[   78.734446][ T2706]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   78.734448][ T2706]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   78.734451][ T2706]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   78.734453][ T2706]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   78.734454][ T2706]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   78.734455][ T2706]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   78.734457][ T2706]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   78.734459][ T2706]  ? __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)
[   78.734462][ T2706]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   78.734464][ T2706]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   78.734467][ T2706]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   78.734468][ T2706]  ? nla_get_range_signed (lib/nlattr.c:270)
[   78.734476][ T2706]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   78.734478][ T2706]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   78.734483][ T2706]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   78.734488][ T2706]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   78.734490][ T2706]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   78.734495][ T2706]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   78.734496][ T2706]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   78.734499][ T2706]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   78.734500][ T2706]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   78.734504][ T2706]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   78.734506][ T2706]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   78.734509][ T2706]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   78.734511][ T2706]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   78.734515][ T2706]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   78.734517][ T2706]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   78.734520][ T2706]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   78.734524][ T2706]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   78.734526][ T2706]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   78.734533][ T2706]  ? 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))
[   78.734535][ T2706]  ? 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))
[   78.734539][ T2706]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   78.734543][ T2706]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   78.734545][ T2706]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   78.734550][ T2706]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   78.734554][ T2706]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   78.734557][ T2706]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   78.734559][ T2706]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   78.734564][ T2706]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   78.734567][ T2706]  ____sys_sendmsg (net/socket.c:2713)
[   78.734569][ T2706]  ? copy_msghdr_from_user (net/socket.c:2650)
[   78.734572][ T2706]  ? sock_write_iter (net/socket.c:1269)
[   78.734573][ T2706]  ? move_addr_to_kernel (net/socket.c:258)
[   78.734580][ T2706]  ___sys_sendmsg (net/socket.c:2767)
[   78.734583][ T2706]  ? copy_msghdr_from_user (net/socket.c:2619)
[   78.734599][ T2706]  __sys_sendmsg (net/socket.c:2799)
[   78.734601][ T2706]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   78.734608][ T2706]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   78.734611][ T2706]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   78.734613][ T2706]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   78.734616][ T2706]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   78.734618][ T2706] RIP: 0033:0x7fb5a8a4f54e
[   78.734622][ T2706] 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
[   78.734624][ T2706] RSP: 002b:00007ffcb5c55600 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   78.734627][ T2706] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fb5a8a4f54e
[   78.734628][ T2706] RDX: 0000000000000000 RSI: 00007ffcb5c556b0 RDI: 0000000000000005
[   78.734629][ T2706] RBP: 00007ffcb5c55610 R08: 0000000000000000 R09: 0000000000000000
[   78.734630][ T2706] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90ee86
[   78.734630][ T2706] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffcb5c55d80
| [   80.032619][ T2775] softirqs last disabled at (21720): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   80.032621][ T2775] Preemption disabled at:
| [   80.032621][ T2775] vprintk_emit (kernel/printk/printk.c:2471)
| [   80.032630][ T2775] Tainted: [W]=WARN
[   80.032631][ T2775] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   80.032633][ T2775] Call Trace:
[   80.032635][ T2775]  <TASK>
[   80.032636][ T2775]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   80.032642][ T2775]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   80.032644][ T2775]  __might_resched.cold (kernel/sched/core.c:9234)
[   80.032648][ T2775]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   80.032653][ T2775]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   80.032657][ T2775]  __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))
[   80.032659][ T2775]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   80.032665][ T2775]  ? 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)
[   80.032668][ T2775]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   80.032671][ T2775]  put_chars (drivers/char/virtio_console.c:1176)
[   80.032674][ T2775]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   80.032675][ T2775]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   80.032679][ T2775]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   80.032684][ T2775]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   80.032692][ T2775]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   80.032694][ T2775]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   80.032697][ T2775]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   80.032701][ T2775]  console_emit_next_record (kernel/printk/printk.c:3183)
[   80.032705][ T2775]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   80.032706][ T2775]  ? 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))
[   80.032710][ T2775]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   80.032711][ T2775]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   80.032715][ T2775]  console_flush_one_record (kernel/printk/printk.c:3268)
[   80.032719][ T2775]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   80.032721][ T2775]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   80.032727][ T2775]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   80.032730][ T2775]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   80.032732][ T2775]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   80.032733][ T2775]  ? 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)
[   80.032737][ T2775]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   80.032739][ T2775]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   80.032741][ T2775]  vprintk_emit (kernel/printk/printk.c:2479)
[   80.032745][ T2775]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   80.032746][ T2775]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   80.032749][ T2775]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   80.032753][ T2775]  _printk (kernel/printk/printk.c:2504)
[   80.032756][ T2775]  ? snapshot_read.cold (user.c:?)
[   80.032760][ T2775]  ? br_multicast_flood (??:?)
[   80.032763][ T2775]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   80.032765][ T2775]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   80.032766][ T2775]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   80.032770][ T2775]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   80.032774][ T2775]  br_init_port (net/bridge/br_stp_if.c:39)
[   80.032777][ T2775]  new_nbp (net/bridge/br_if.c:449)
[   80.032780][ T2775]  br_add_if (net/bridge/br_if.c:592)
[   80.032783][ T2775]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   80.032786][ T2775]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   80.032792][ T2775]  do_set_master (net/core/rtnetlink.c:3071)
[   80.032795][ T2775]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   80.032798][ T2775]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   80.032802][ T2775]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   80.032803][ T2775]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   80.032806][ T2775]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   80.032809][ T2775]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   80.032811][ T2775]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   80.032813][ T2775]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   80.032815][ T2775]  ? kasan_save_stack (mm/kasan/common.c:58)
[   80.032818][ T2775]  ? kasan_save_stack (mm/kasan/common.c:57)
[   80.032819][ T2775]  ? kasan_save_track (mm/kasan/common.c:78)
[   80.032820][ T2775]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   80.032822][ T2775]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   80.032824][ T2775]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   80.032827][ T2775]  ? ___sys_sendmsg (net/socket.c:2758)
[   80.032830][ T2775]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   80.032832][ T2775]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   80.032835][ T2775]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   80.032837][ T2775]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   80.032838][ T2775]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   80.032839][ T2775]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   80.032841][ T2775]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   80.032843][ T2775]  ? __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)
[   80.032846][ T2775]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   80.032848][ T2775]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   80.032851][ T2775]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   80.032852][ T2775]  ? nla_get_range_signed (lib/nlattr.c:270)
[   80.032858][ T2775]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   80.032860][ T2775]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   80.032865][ T2775]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   80.032870][ T2775]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   80.032872][ T2775]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   80.032877][ T2775]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   80.032879][ T2775]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   80.032881][ T2775]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   80.032883][ T2775]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   80.032886][ T2775]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   80.032888][ T2775]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   80.032891][ T2775]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   80.032893][ T2775]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   80.032897][ T2775]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   80.032899][ T2775]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   80.032903][ T2775]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   80.032906][ T2775]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   80.032909][ T2775]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   80.032915][ T2775]  ? 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))
[   80.032917][ T2775]  ? 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))
[   80.032922][ T2775]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   80.032926][ T2775]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   80.032928][ T2775]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   80.032933][ T2775]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   80.032937][ T2775]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   80.032941][ T2775]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   80.032942][ T2775]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   80.032948][ T2775]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   80.032950][ T2775]  ____sys_sendmsg (net/socket.c:2713)
[   80.032953][ T2775]  ? copy_msghdr_from_user (net/socket.c:2650)
[   80.032955][ T2775]  ? sock_write_iter (net/socket.c:1269)
[   80.032956][ T2775]  ? move_addr_to_kernel (net/socket.c:258)
[   80.032964][ T2775]  ___sys_sendmsg (net/socket.c:2767)
[   80.032966][ T2775]  ? copy_msghdr_from_user (net/socket.c:2619)
[   80.032982][ T2775]  __sys_sendmsg (net/socket.c:2799)
[   80.032985][ T2775]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   80.032992][ T2775]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   80.032995][ T2775]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   80.032998][ T2775]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   80.033000][ T2775]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   80.033002][ T2775] RIP: 0033:0x7f934babb54e
[   80.033006][ T2775] 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
[   80.033008][ T2775] RSP: 002b:00007ffee9d1c3f0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   80.033010][ T2775] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f934babb54e
[   80.033012][ T2775] RDX: 0000000000000000 RSI: 00007ffee9d1c4a0 RDI: 0000000000000005
[   80.033013][ T2775] RBP: 00007ffee9d1c400 R08: 0000000000000000 R09: 0000000000000000
[   80.033013][ T2775] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90ee87
[   80.033014][ T2775] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffee9d1cb70
| [   81.293081][ T2843] softirqs last disabled at (23604): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   81.293083][ T2843] Preemption disabled at:
| [   81.293084][ T2843] vprintk_emit (kernel/printk/printk.c:2471)
| [   81.293092][ T2843] Tainted: [W]=WARN
[   81.293093][ T2843] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   81.293095][ T2843] Call Trace:
[   81.293097][ T2843]  <TASK>
[   81.293098][ T2843]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   81.293104][ T2843]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   81.293106][ T2843]  __might_resched.cold (kernel/sched/core.c:9234)
[   81.293110][ T2843]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   81.293115][ T2843]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   81.293119][ T2843]  __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))
[   81.293121][ T2843]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   81.293127][ T2843]  ? 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)
[   81.293130][ T2843]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   81.293133][ T2843]  put_chars (drivers/char/virtio_console.c:1176)
[   81.293136][ T2843]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   81.293137][ T2843]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   81.293140][ T2843]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   81.293146][ T2843]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   81.293153][ T2843]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   81.293156][ T2843]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   81.293158][ T2843]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   81.293162][ T2843]  console_emit_next_record (kernel/printk/printk.c:3183)
[   81.293166][ T2843]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   81.293168][ T2843]  ? 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))
[   81.293171][ T2843]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   81.293172][ T2843]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   81.293176][ T2843]  console_flush_one_record (kernel/printk/printk.c:3268)
[   81.293180][ T2843]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   81.293182][ T2843]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   81.293188][ T2843]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   81.293190][ T2843]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   81.293192][ T2843]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   81.293194][ T2843]  ? 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)
[   81.293197][ T2843]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   81.293199][ T2843]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   81.293202][ T2843]  vprintk_emit (kernel/printk/printk.c:2479)
[   81.293205][ T2843]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   81.293207][ T2843]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   81.293210][ T2843]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   81.293213][ T2843]  _printk (kernel/printk/printk.c:2504)
[   81.293217][ T2843]  ? snapshot_read.cold (user.c:?)
[   81.293220][ T2843]  ? br_multicast_flood (??:?)
[   81.293223][ T2843]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   81.293225][ T2843]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   81.293226][ T2843]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   81.293230][ T2843]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   81.293234][ T2843]  br_init_port (net/bridge/br_stp_if.c:39)
[   81.293237][ T2843]  new_nbp (net/bridge/br_if.c:449)
[   81.293241][ T2843]  br_add_if (net/bridge/br_if.c:592)
[   81.293243][ T2843]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   81.293246][ T2843]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   81.293252][ T2843]  do_set_master (net/core/rtnetlink.c:3071)
[   81.293255][ T2843]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   81.293259][ T2843]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   81.293262][ T2843]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   81.293263][ T2843]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   81.293266][ T2843]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   81.293270][ T2843]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   81.293272][ T2843]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   81.293273][ T2843]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   81.293276][ T2843]  ? kasan_save_stack (mm/kasan/common.c:58)
[   81.293278][ T2843]  ? kasan_save_stack (mm/kasan/common.c:57)
[   81.293279][ T2843]  ? kasan_save_track (mm/kasan/common.c:78)
[   81.293280][ T2843]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   81.293283][ T2843]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   81.293285][ T2843]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   81.293287][ T2843]  ? ___sys_sendmsg (net/socket.c:2758)
[   81.293291][ T2843]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   81.293293][ T2843]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   81.293295][ T2843]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   81.293297][ T2843]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   81.293298][ T2843]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   81.293300][ T2843]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   81.293301][ T2843]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   81.293303][ T2843]  ? __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)
[   81.293306][ T2843]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   81.293308][ T2843]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   81.293311][ T2843]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   81.293312][ T2843]  ? nla_get_range_signed (lib/nlattr.c:270)
[   81.293317][ T2843]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   81.293319][ T2843]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   81.293324][ T2843]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   81.293329][ T2843]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   81.293331][ T2843]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   81.293335][ T2843]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   81.293337][ T2843]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   81.293339][ T2843]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   81.293341][ T2843]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   81.293345][ T2843]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   81.293347][ T2843]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   81.293350][ T2843]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   81.293351][ T2843]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   81.293355][ T2843]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   81.293357][ T2843]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   81.293360][ T2843]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   81.293364][ T2843]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   81.293366][ T2843]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   81.293376][ T2843]  ? 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))
[   81.293378][ T2843]  ? 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))
[   81.293382][ T2843]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   81.293386][ T2843]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   81.293388][ T2843]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   81.293393][ T2843]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   81.293397][ T2843]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   81.293400][ T2843]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   81.293402][ T2843]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   81.293407][ T2843]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   81.293410][ T2843]  ____sys_sendmsg (net/socket.c:2713)
[   81.293412][ T2843]  ? copy_msghdr_from_user (net/socket.c:2650)
[   81.293415][ T2843]  ? sock_write_iter (net/socket.c:1269)
[   81.293416][ T2843]  ? move_addr_to_kernel (net/socket.c:258)
[   81.293423][ T2843]  ___sys_sendmsg (net/socket.c:2767)
[   81.293426][ T2843]  ? copy_msghdr_from_user (net/socket.c:2619)
[   81.293442][ T2843]  __sys_sendmsg (net/socket.c:2799)
[   81.293444][ T2843]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   81.293451][ T2843]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   81.293453][ T2843]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   81.293456][ T2843]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   81.293459][ T2843]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   81.293461][ T2843] RIP: 0033:0x7fe0f6b5154e
[   81.293465][ T2843] 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
[   81.293467][ T2843] RSP: 002b:00007ffff5c83aa0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   81.293469][ T2843] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fe0f6b5154e
[   81.293471][ T2843] RDX: 0000000000000000 RSI: 00007ffff5c83b50 RDI: 0000000000000005
[   81.293472][ T2843] RBP: 00007ffff5c83ab0 R08: 0000000000000000 R09: 0000000000000000
[   81.293472][ T2843] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90ee88
[   81.293473][ T2843] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffff5c84220
| [   82.619761][   T12] softirqs last disabled at (1066250): inet6_fill_ifla6_attrs (net/ipv6/addrconf.c:5883)
| [   82.619763][   T12] Preemption disabled at:
| [   82.619764][   T12] vprintk_emit (kernel/printk/printk.c:2471)
| [   82.619772][   T12] Tainted: [W]=WARN
[   82.619773][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   82.619775][   T12] Workqueue: netns cleanup_net
[   82.619778][   T12] Call Trace:
[   82.619779][   T12]  <TASK>
[   82.619782][   T12]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   82.619787][   T12]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   82.619789][   T12]  __might_resched.cold (kernel/sched/core.c:9234)
[   82.619793][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   82.619797][   T12]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   82.619802][   T12]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   82.619803][   T12]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   82.619810][   T12]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   82.619812][   T12]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   82.619816][   T12]  put_chars (drivers/char/virtio_console.c:1176)
[   82.619819][   T12]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   82.619820][   T12]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   82.619824][   T12]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   82.619826][   T12]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   82.619831][   T12]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   82.619835][   T12]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   82.619841][   T12]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   82.619844][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   82.619848][   T12]  console_emit_next_record (kernel/printk/printk.c:3183)
[   82.619852][   T12]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   82.619854][   T12]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   82.619858][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   82.619859][   T12]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   82.619863][   T12]  console_flush_one_record (kernel/printk/printk.c:3268)
[   82.619868][   T12]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   82.619869][   T12]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   82.619875][   T12]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   82.619878][   T12]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   82.619880][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   82.619882][   T12]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   82.619885][   T12]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   82.619887][   T12]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   82.619890][   T12]  vprintk_emit (kernel/printk/printk.c:2479)
[   82.619893][   T12]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   82.619894][   T12]  ? cleanup_net (net/core/net_namespace.c:706)
[   82.619896][   T12]  ? worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   82.619898][   T12]  ? kthread (kernel/kthread.c:436)
[   82.619901][   T12]  ? ret_from_fork (arch/x86/kernel/process.c:158)
[   82.619903][   T12]  ? ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
[   82.619908][   T12]  _printk (kernel/printk/printk.c:2504)
[   82.619912][   T12]  ? snapshot_read.cold (user.c:?)
[   82.619916][   T12]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   82.619920][   T12]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   82.619924][   T12]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   82.619927][   T12]  ? netdev_notice (net/core/dev.c:13194)
[   82.619931][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   82.619933][   T12]  ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1))
[   82.619936][   T12]  ? down_write_nested (kernel/locking/rwsem.c:1759)
[   82.619938][   T12]  ? mutex_is_locked (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.h:48 kernel/locking/mutex.c:65)
[   82.619940][   T12]  netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3))
[   82.619944][   T12]  dev_set_allmulti (net/core/dev_api.c:315)
[   82.619948][   T12]  del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341)
[   82.619954][   T12]  br_dev_delete (net/bridge/br_if.c:387)
[   82.619957][   T12]  br_net_exit_rtnl (net/bridge/br.c:414)
[   82.619961][   T12]  ops_undo_list (net/core/net_namespace.c:181 net/core/net_namespace.c:249)
[   82.619965][   T12]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   82.619968][   T12]  ? netns_install (./include/linux/ns_common.h:26)
[   82.619970][   T12]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   82.619973][   T12]  ? idr_destroy (lib/radix-tree.c:310 lib/radix-tree.c:674 lib/radix-tree.c:1563)
[   82.619978][   T12]  cleanup_net (net/core/net_namespace.c:706)
[   82.619981][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   82.619985][   T12]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   82.619987][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   82.619990][   T12]  process_one_work (kernel/workqueue.c:3387)
[   82.619997][   T12]  ? __queue_delayed_work (kernel/workqueue.c:2622)
[   82.620000][   T12]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   82.620007][   T12]  worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   82.620014][   T12]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   82.620016][   T12]  kthread (kernel/kthread.c:436)
[   82.620018][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   82.620022][   T12]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   82.620025][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   82.620027][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1))
[   82.620031][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   82.620038][   T12]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   82.620041][   T12]  ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
| [   83.989888][ T2991] softirqs last disabled at (22142): netif_change_name (./include/linux/spinlock.h:353 ./include/linux/seqlock.h:908 net/core/dev.c:1499)
| [   83.989890][ T2991] Preemption disabled at:
| [   83.989891][ T2991] vprintk_emit (kernel/printk/printk.c:2471)
| [   83.989899][ T2991] Tainted: [W]=WARN
[   83.989900][ T2991] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   83.989902][ T2991] Call Trace:
[   83.989903][ T2991]  <TASK>
[   83.989905][ T2991]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   83.989910][ T2991]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   83.989912][ T2991]  __might_resched.cold (kernel/sched/core.c:9234)
[   83.989917][ T2991]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   83.989921][ T2991]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   83.989926][ T2991]  __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))
[   83.989927][ T2991]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   83.989934][ T2991]  ? 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)
[   83.989937][ T2991]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   83.989940][ T2991]  put_chars (drivers/char/virtio_console.c:1176)
[   83.989943][ T2991]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   83.989949][ T2991]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   83.989956][ T2991]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   83.989960][ T2991]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   83.989964][ T2991]  console_emit_next_record (kernel/printk/printk.c:3183)
[   83.989968][ T2991]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   83.989970][ T2991]  ? 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))
[   83.989973][ T2991]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   83.989976][ T2991]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   83.989980][ T2991]  console_flush_one_record (kernel/printk/printk.c:3268)
[   83.989984][ T2991]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   83.989986][ T2991]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   83.989991][ T2991]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   83.989994][ T2991]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   83.989996][ T2991]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   83.989998][ T2991]  ? 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)
[   83.990002][ T2991]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   83.990003][ T2991]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   83.990006][ T2991]  vprintk_emit (kernel/printk/printk.c:2479)
[   83.990009][ T2991]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   83.990011][ T2991]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   83.990013][ T2991]  ? lock_pin_lock (kernel/locking/lockdep.c:5640 (discriminator 2) kernel/locking/lockdep.c:6003 (discriminator 2) kernel/locking/lockdep.c:5991 (discriminator 2))
[   83.990015][ T2991]  ? __print_lock_name (kernel/locking/lockdep.c:718)
[   83.990019][ T2991]  _printk (kernel/printk/printk.c:2504)
[   83.990022][ T2991]  ? snapshot_read.cold (user.c:?)
[   83.990024][ T2991]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   83.990026][ T2991]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   83.990029][ T2991]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   83.990031][ T2991]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   83.990035][ T2991]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   83.990042][ T2991]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   83.990044][ T2991]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   83.990047][ T2991]  ? netdev_notice (net/core/dev.c:13194)
[   83.990050][ T2991]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   83.990053][ T2991]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   83.990056][ T2991]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   83.990059][ T2991]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   83.990061][ T2991]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   83.990063][ T2991]  ? 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))
[   83.990069][ T2991]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   83.990071][ T2991]  ? __kernel_text_address (kernel/extable.c:79)
[   83.990074][ T2991]  ? write_profile (profile.c:?)
[   83.990078][ T2991]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   83.990083][ T2991]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   83.990087][ T2991]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   83.990089][ T2991]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   83.990090][ T2991]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   83.990092][ T2991]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   83.990095][ T2991]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   83.990097][ T2991]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   83.990099][ T2991]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   83.990101][ T2991]  ? kasan_save_stack (mm/kasan/common.c:58)
[   83.990103][ T2991]  ? kasan_save_stack (mm/kasan/common.c:57)
[   83.990104][ T2991]  ? kasan_save_track (mm/kasan/common.c:78)
[   83.990106][ T2991]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   83.990108][ T2991]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   83.990110][ T2991]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   83.990113][ T2991]  ? ___sys_sendmsg (net/socket.c:2758)
[   83.990116][ T2991]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   83.990118][ T2991]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   83.990121][ T2991]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   83.990123][ T2991]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   83.990124][ T2991]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   83.990125][ T2991]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   83.990127][ T2991]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   83.990129][ T2991]  ? __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)
[   83.990132][ T2991]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   83.990133][ T2991]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   83.990137][ T2991]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   83.990138][ T2991]  ? nla_get_range_signed (lib/nlattr.c:270)
[   83.990143][ T2991]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   83.990145][ T2991]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   83.990150][ T2991]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   83.990155][ T2991]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   83.990157][ T2991]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   83.990161][ T2991]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   83.990163][ T2991]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   83.990165][ T2991]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   83.990167][ T2991]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   83.990171][ T2991]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   83.990173][ T2991]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   83.990176][ T2991]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   83.990177][ T2991]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   83.990182][ T2991]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   83.990183][ T2991]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   83.990187][ T2991]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   83.990190][ T2991]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   83.990193][ T2991]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   83.990199][ T2991]  ? 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))
[   83.990201][ T2991]  ? 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))
[   83.990205][ T2991]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   83.990209][ T2991]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   83.990212][ T2991]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   83.990216][ T2991]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   83.990220][ T2991]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   83.990224][ T2991]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   83.990225][ T2991]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   83.990230][ T2991]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   83.990233][ T2991]  ____sys_sendmsg (net/socket.c:2713)
[   83.990235][ T2991]  ? copy_msghdr_from_user (net/socket.c:2650)
[   83.990238][ T2991]  ? sock_write_iter (net/socket.c:1269)
[   83.990239][ T2991]  ? move_addr_to_kernel (net/socket.c:258)
[   83.990246][ T2991]  ___sys_sendmsg (net/socket.c:2767)
[   83.990249][ T2991]  ? copy_msghdr_from_user (net/socket.c:2619)
[   83.990264][ T2991]  __sys_sendmsg (net/socket.c:2799)
[   83.990267][ T2991]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   83.990273][ T2991]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   83.990276][ T2991]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   83.990279][ T2991]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   83.990282][ T2991]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   83.990284][ T2991] RIP: 0033:0x7fc658a8854e
[   83.990287][ T2991] 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
[   83.990289][ T2991] RSP: 002b:00007ffe71665910 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   83.990292][ T2991] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fc658a8854e
[   83.990293][ T2991] RDX: 0000000000000000 RSI: 00007ffe716659c0 RDI: 0000000000000005
[   83.990294][ T2991] RBP: 00007ffe71665920 R08: 0000000000000000 R09: 0000000000000000
[   83.990295][ T2991] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90ee8b
[   83.990295][ T2991] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffe71666090
| [   96.110237][ T3301] softirqs last disabled at (19480): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   96.110240][ T3301] Preemption disabled at:
| [   96.110240][ T3301] vprintk_emit (kernel/printk/printk.c:2471)
| [   96.110249][ T3301] Tainted: [W]=WARN
[   96.110250][ T3301] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   96.110252][ T3301] Call Trace:
[   96.110253][ T3301]  <TASK>
[   96.110255][ T3301]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   96.110261][ T3301]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   96.110262][ T3301]  __might_resched.cold (kernel/sched/core.c:9234)
[   96.110267][ T3301]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   96.110271][ T3301]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   96.110276][ T3301]  __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))
[   96.110277][ T3301]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   96.110284][ T3301]  ? 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)
[   96.110287][ T3301]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   96.110291][ T3301]  put_chars (drivers/char/virtio_console.c:1176)
[   96.110293][ T3301]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   96.110294][ T3301]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   96.110298][ T3301]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   96.110303][ T3301]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   96.110311][ T3301]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   96.110313][ T3301]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   96.110315][ T3301]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   96.110319][ T3301]  console_emit_next_record (kernel/printk/printk.c:3183)
[   96.110323][ T3301]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   96.110325][ T3301]  ? 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))
[   96.110328][ T3301]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   96.110330][ T3301]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   96.110334][ T3301]  console_flush_one_record (kernel/printk/printk.c:3268)
[   96.110338][ T3301]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   96.110340][ T3301]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   96.110346][ T3301]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   96.110348][ T3301]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   96.110350][ T3301]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   96.110352][ T3301]  ? 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)
[   96.110356][ T3301]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   96.110357][ T3301]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   96.110360][ T3301]  vprintk_emit (kernel/printk/printk.c:2479)
[   96.110363][ T3301]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   96.110365][ T3301]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   96.110368][ T3301]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   96.110374][ T3301]  _printk (kernel/printk/printk.c:2504)
[   96.110377][ T3301]  ? snapshot_read.cold (user.c:?)
[   96.110381][ T3301]  ? br_multicast_flood (??:?)
[   96.110384][ T3301]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   96.110385][ T3301]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   96.110386][ T3301]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   96.110391][ T3301]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   96.110395][ T3301]  br_init_port (net/bridge/br_stp_if.c:39)
[   96.110398][ T3301]  new_nbp (net/bridge/br_if.c:449)
[   96.110401][ T3301]  br_add_if (net/bridge/br_if.c:592)
[   96.110404][ T3301]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   96.110407][ T3301]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   96.110413][ T3301]  do_set_master (net/core/rtnetlink.c:3071)
[   96.110416][ T3301]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   96.110420][ T3301]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   96.110423][ T3301]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   96.110424][ T3301]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   96.110427][ T3301]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   96.110430][ T3301]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   96.110432][ T3301]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   96.110434][ T3301]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   96.110436][ T3301]  ? kasan_save_stack (mm/kasan/common.c:58)
[   96.110439][ T3301]  ? kasan_save_stack (mm/kasan/common.c:57)
[   96.110440][ T3301]  ? kasan_save_track (mm/kasan/common.c:78)
[   96.110441][ T3301]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   96.110443][ T3301]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   96.110445][ T3301]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   96.110448][ T3301]  ? ___sys_sendmsg (net/socket.c:2758)
[   96.110452][ T3301]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   96.110454][ T3301]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   96.110457][ T3301]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   96.110458][ T3301]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   96.110460][ T3301]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   96.110461][ T3301]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   96.110463][ T3301]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   96.110465][ T3301]  ? __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)
[   96.110467][ T3301]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   96.110469][ T3301]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   96.110473][ T3301]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   96.110474][ T3301]  ? nla_get_range_signed (lib/nlattr.c:270)
[   96.110479][ T3301]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   96.110481][ T3301]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   96.110486][ T3301]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   96.110492][ T3301]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   96.110494][ T3301]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   96.110498][ T3301]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   96.110500][ T3301]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   96.110502][ T3301]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   96.110504][ T3301]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   96.110508][ T3301]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   96.110510][ T3301]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   96.110513][ T3301]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   96.110514][ T3301]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   96.110521][ T3301]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   96.110523][ T3301]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   96.110526][ T3301]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   96.110529][ T3301]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   96.110532][ T3301]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   96.110539][ T3301]  ? 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))
[   96.110541][ T3301]  ? 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))
[   96.110545][ T3301]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   96.110549][ T3301]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   96.110551][ T3301]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   96.110556][ T3301]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   96.110559][ T3301]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   96.110563][ T3301]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   96.110565][ T3301]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   96.110570][ T3301]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   96.110573][ T3301]  ____sys_sendmsg (net/socket.c:2713)
[   96.110575][ T3301]  ? copy_msghdr_from_user (net/socket.c:2650)
[   96.110577][ T3301]  ? sock_write_iter (net/socket.c:1269)
[   96.110579][ T3301]  ? move_addr_to_kernel (net/socket.c:258)
[   96.110586][ T3301]  ___sys_sendmsg (net/socket.c:2767)
[   96.110589][ T3301]  ? copy_msghdr_from_user (net/socket.c:2619)
[   96.110604][ T3301]  __sys_sendmsg (net/socket.c:2799)
[   96.110607][ T3301]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   96.110613][ T3301]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   96.110616][ T3301]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   96.110619][ T3301]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   96.110622][ T3301]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   96.110624][ T3301] RIP: 0033:0x7f5911cb354e
[   96.110628][ T3301] 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
[   96.110630][ T3301] RSP: 002b:00007ffd62a561c0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   96.110632][ T3301] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f5911cb354e
[   96.110634][ T3301] RDX: 0000000000000000 RSI: 00007ffd62a56270 RDI: 0000000000000005
[   96.110635][ T3301] RBP: 00007ffd62a561d0 R08: 0000000000000000 R09: 0000000000000000
[   96.110636][ T3301] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90ee97
[   96.110636][ T3301] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffd62a56940
| [   97.446372][ T3389] softirqs last disabled at (19036): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   97.446374][ T3389] Preemption disabled at:
| [   97.446375][ T3389] vprintk_emit (kernel/printk/printk.c:2471)
| [   97.446383][ T3389] Tainted: [W]=WARN
[   97.446384][ T3389] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   97.446386][ T3389] Call Trace:
[   97.446387][ T3389]  <TASK>
[   97.446388][ T3389]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   97.446394][ T3389]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   97.446396][ T3389]  __might_resched.cold (kernel/sched/core.c:9234)
[   97.446401][ T3389]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   97.446405][ T3389]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   97.446409][ T3389]  __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))
[   97.446411][ T3389]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   97.446418][ T3389]  ? 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)
[   97.446420][ T3389]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   97.446424][ T3389]  put_chars (drivers/char/virtio_console.c:1176)
[   97.446426][ T3389]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   97.446427][ T3389]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   97.446431][ T3389]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   97.446436][ T3389]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   97.446444][ T3389]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   97.446446][ T3389]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   97.446449][ T3389]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   97.446452][ T3389]  console_emit_next_record (kernel/printk/printk.c:3183)
[   97.446456][ T3389]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   97.446458][ T3389]  ? 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))
[   97.446462][ T3389]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   97.446463][ T3389]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   97.446467][ T3389]  console_flush_one_record (kernel/printk/printk.c:3268)
[   97.446471][ T3389]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   97.446473][ T3389]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   97.446479][ T3389]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   97.446482][ T3389]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   97.446483][ T3389]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   97.446485][ T3389]  ? 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)
[   97.446489][ T3389]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   97.446491][ T3389]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   97.446493][ T3389]  vprintk_emit (kernel/printk/printk.c:2479)
[   97.446497][ T3389]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   97.446498][ T3389]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   97.446501][ T3389]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   97.446505][ T3389]  _printk (kernel/printk/printk.c:2504)
[   97.446508][ T3389]  ? snapshot_read.cold (user.c:?)
[   97.446511][ T3389]  ? br_multicast_flood (??:?)
[   97.446515][ T3389]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   97.446516][ T3389]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   97.446521][ T3389]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   97.446525][ T3389]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   97.446530][ T3389]  br_init_port (net/bridge/br_stp_if.c:39)
[   97.446532][ T3389]  new_nbp (net/bridge/br_if.c:449)
[   97.446536][ T3389]  br_add_if (net/bridge/br_if.c:592)
[   97.446538][ T3389]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   97.446542][ T3389]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   97.446547][ T3389]  do_set_master (net/core/rtnetlink.c:3071)
[   97.446550][ T3389]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   97.446554][ T3389]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   97.446557][ T3389]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   97.446558][ T3389]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   97.446561][ T3389]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   97.446564][ T3389]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   97.446566][ T3389]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   97.446568][ T3389]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   97.446570][ T3389]  ? kasan_save_stack (mm/kasan/common.c:58)
[   97.446572][ T3389]  ? kasan_save_stack (mm/kasan/common.c:57)
[   97.446573][ T3389]  ? kasan_save_track (mm/kasan/common.c:78)
[   97.446575][ T3389]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   97.446577][ T3389]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   97.446579][ T3389]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   97.446581][ T3389]  ? ___sys_sendmsg (net/socket.c:2758)
[   97.446585][ T3389]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   97.446587][ T3389]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   97.446589][ T3389]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   97.446591][ T3389]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   97.446593][ T3389]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   97.446594][ T3389]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   97.446595][ T3389]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   97.446598][ T3389]  ? __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)
[   97.446600][ T3389]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   97.446602][ T3389]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   97.446605][ T3389]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   97.446606][ T3389]  ? nla_get_range_signed (lib/nlattr.c:270)
[   97.446611][ T3389]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   97.446613][ T3389]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   97.446618][ T3389]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   97.446623][ T3389]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   97.446625][ T3389]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   97.446629][ T3389]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   97.446631][ T3389]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   97.446633][ T3389]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   97.446635][ T3389]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   97.446639][ T3389]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   97.446641][ T3389]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   97.446643][ T3389]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   97.446645][ T3389]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   97.446649][ T3389]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   97.446651][ T3389]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   97.446654][ T3389]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   97.446657][ T3389]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   97.446660][ T3389]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   97.446666][ T3389]  ? 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))
[   97.446668][ T3389]  ? 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))
[   97.446672][ T3389]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   97.446676][ T3389]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   97.446678][ T3389]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   97.446683][ T3389]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   97.446686][ T3389]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   97.446690][ T3389]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   97.446692][ T3389]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   97.446697][ T3389]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   97.446700][ T3389]  ____sys_sendmsg (net/socket.c:2713)
[   97.446702][ T3389]  ? copy_msghdr_from_user (net/socket.c:2650)
[   97.446704][ T3389]  ? sock_write_iter (net/socket.c:1269)
[   97.446705][ T3389]  ? move_addr_to_kernel (net/socket.c:258)
[   97.446712][ T3389]  ___sys_sendmsg (net/socket.c:2767)
[   97.446715][ T3389]  ? copy_msghdr_from_user (net/socket.c:2619)
[   97.446730][ T3389]  __sys_sendmsg (net/socket.c:2799)
[   97.446733][ T3389]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   97.446739][ T3389]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   97.446742][ T3389]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   97.446745][ T3389]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   97.446747][ T3389]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   97.446749][ T3389] RIP: 0033:0x7f82f3b1a54e
[   97.446753][ T3389] 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
[   97.446755][ T3389] RSP: 002b:00007ffe43ff4410 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   97.446757][ T3389] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f82f3b1a54e
[   97.446759][ T3389] RDX: 0000000000000000 RSI: 00007ffe43ff44c0 RDI: 0000000000000005
[   97.446760][ T3389] RBP: 00007ffe43ff4420 R08: 0000000000000000 R09: 0000000000000000
[   97.446761][ T3389] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90ee98
[   97.446761][ T3389] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffe43ff4b90
| [   98.755612][ T3464] softirqs last disabled at (34098): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   98.755615][ T3464] Preemption disabled at:
| [   98.755615][ T3464] vprintk_emit (kernel/printk/printk.c:2471)
| [   98.755624][ T3464] Tainted: [W]=WARN
[   98.755625][ T3464] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   98.755626][ T3464] Call Trace:
[   98.755628][ T3464]  <TASK>
[   98.755629][ T3464]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   98.755635][ T3464]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   98.755636][ T3464]  __might_resched.cold (kernel/sched/core.c:9234)
[   98.755641][ T3464]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   98.755645][ T3464]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   98.755650][ T3464]  __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))
[   98.755651][ T3464]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   98.755658][ T3464]  ? 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)
[   98.755660][ T3464]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   98.755664][ T3464]  put_chars (drivers/char/virtio_console.c:1176)
[   98.755666][ T3464]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   98.755668][ T3464]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   98.755671][ T3464]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   98.755676][ T3464]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   98.755684][ T3464]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   98.755686][ T3464]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   98.755688][ T3464]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   98.755692][ T3464]  console_emit_next_record (kernel/printk/printk.c:3183)
[   98.755696][ T3464]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   98.755698][ T3464]  ? 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))
[   98.755701][ T3464]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   98.755703][ T3464]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   98.755707][ T3464]  console_flush_one_record (kernel/printk/printk.c:3268)
[   98.755711][ T3464]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   98.755713][ T3464]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   98.755718][ T3464]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   98.755721][ T3464]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   98.755723][ T3464]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   98.755724][ T3464]  ? 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)
[   98.755728][ T3464]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   98.755730][ T3464]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   98.755732][ T3464]  vprintk_emit (kernel/printk/printk.c:2479)
[   98.755735][ T3464]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   98.755737][ T3464]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   98.755740][ T3464]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   98.755743][ T3464]  _printk (kernel/printk/printk.c:2504)
[   98.755747][ T3464]  ? snapshot_read.cold (user.c:?)
[   98.755750][ T3464]  ? br_multicast_flood (??:?)
[   98.755753][ T3464]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   98.755755][ T3464]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   98.755756][ T3464]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   98.755760][ T3464]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   98.755764][ T3464]  br_init_port (net/bridge/br_stp_if.c:39)
[   98.755767][ T3464]  new_nbp (net/bridge/br_if.c:449)
[   98.755770][ T3464]  br_add_if (net/bridge/br_if.c:592)
[   98.755773][ T3464]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   98.755776][ T3464]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   98.755782][ T3464]  do_set_master (net/core/rtnetlink.c:3071)
[   98.755786][ T3464]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   98.755789][ T3464]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   98.755792][ T3464]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   98.755793][ T3464]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   98.755796][ T3464]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   98.755799][ T3464]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   98.755801][ T3464]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   98.755803][ T3464]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   98.755805][ T3464]  ? kasan_save_stack (mm/kasan/common.c:58)
[   98.755808][ T3464]  ? kasan_save_stack (mm/kasan/common.c:57)
[   98.755809][ T3464]  ? kasan_save_track (mm/kasan/common.c:78)
[   98.755810][ T3464]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   98.755812][ T3464]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   98.755814][ T3464]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   98.755817][ T3464]  ? ___sys_sendmsg (net/socket.c:2758)
[   98.755820][ T3464]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   98.755822][ T3464]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   98.755825][ T3464]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   98.755827][ T3464]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   98.755828][ T3464]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   98.755829][ T3464]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   98.755831][ T3464]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   98.755833][ T3464]  ? __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)
[   98.755835][ T3464]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   98.755837][ T3464]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   98.755841][ T3464]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   98.755842][ T3464]  ? nla_get_range_signed (lib/nlattr.c:270)
[   98.755846][ T3464]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   98.755849][ T3464]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   98.755854][ T3464]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   98.755859][ T3464]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   98.755861][ T3464]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   98.755865][ T3464]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   98.755867][ T3464]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   98.755869][ T3464]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   98.755871][ T3464]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   98.755874][ T3464]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   98.755876][ T3464]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   98.755879][ T3464]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   98.755881][ T3464]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   98.755885][ T3464]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   98.755887][ T3464]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   98.755890][ T3464]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   98.755893][ T3464]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   98.755896][ T3464]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   98.755902][ T3464]  ? 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))
[   98.755904][ T3464]  ? 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))
[   98.755909][ T3464]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   98.755912][ T3464]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   98.755915][ T3464]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   98.755919][ T3464]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   98.755923][ T3464]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   98.755926][ T3464]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   98.755928][ T3464]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   98.755933][ T3464]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   98.755936][ T3464]  ____sys_sendmsg (net/socket.c:2713)
[   98.755938][ T3464]  ? copy_msghdr_from_user (net/socket.c:2650)
[   98.755941][ T3464]  ? sock_write_iter (net/socket.c:1269)
[   98.755942][ T3464]  ? move_addr_to_kernel (net/socket.c:258)
[   98.755949][ T3464]  ___sys_sendmsg (net/socket.c:2767)
[   98.755952][ T3464]  ? copy_msghdr_from_user (net/socket.c:2619)
[   98.755967][ T3464]  __sys_sendmsg (net/socket.c:2799)
[   98.755970][ T3464]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   98.755976][ T3464]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   98.755979][ T3464]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   98.755982][ T3464]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   98.755985][ T3464]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   98.755987][ T3464] RIP: 0033:0x7f3b8dc6a54e
[   98.755990][ T3464] 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
[   98.755992][ T3464] RSP: 002b:00007ffd3157fe40 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   98.755995][ T3464] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f3b8dc6a54e
[   98.755996][ T3464] RDX: 0000000000000000 RSI: 00007ffd3157fef0 RDI: 0000000000000005
[   98.755997][ T3464] RBP: 00007ffd3157fe50 R08: 0000000000000000 R09: 0000000000000000
[   98.755998][ T3464] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90ee9a
[   98.755999][ T3464] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffd315805c0
| [   99.970191][ T3544] softirqs last disabled at (15308): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   99.970194][ T3544] Preemption disabled at:
| [   99.970194][ T3544] vprintk_emit (kernel/printk/printk.c:2471)
| [   99.970202][ T3544] Tainted: [W]=WARN
[   99.970203][ T3544] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   99.970205][ T3544] Call Trace:
[   99.970207][ T3544]  <TASK>
[   99.970208][ T3544]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   99.970214][ T3544]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   99.970216][ T3544]  __might_resched.cold (kernel/sched/core.c:9234)
[   99.970221][ T3544]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   99.970225][ T3544]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   99.970229][ T3544]  __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))
[   99.970231][ T3544]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   99.970238][ T3544]  ? 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)
[   99.970240][ T3544]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   99.970243][ T3544]  put_chars (drivers/char/virtio_console.c:1176)
[   99.970246][ T3544]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   99.970247][ T3544]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   99.970251][ T3544]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   99.970256][ T3544]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   99.970263][ T3544]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   99.970266][ T3544]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   99.970268][ T3544]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   99.970272][ T3544]  console_emit_next_record (kernel/printk/printk.c:3183)
[   99.970276][ T3544]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   99.970278][ T3544]  ? 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))
[   99.970281][ T3544]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   99.970282][ T3544]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   99.970287][ T3544]  console_flush_one_record (kernel/printk/printk.c:3268)
[   99.970291][ T3544]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   99.970293][ T3544]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   99.970298][ T3544]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   99.970301][ T3544]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   99.970303][ T3544]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   99.970305][ T3544]  ? 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)
[   99.970308][ T3544]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   99.970310][ T3544]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   99.970313][ T3544]  vprintk_emit (kernel/printk/printk.c:2479)
[   99.970316][ T3544]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   99.970318][ T3544]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   99.970323][ T3544]  _printk (kernel/printk/printk.c:2504)
[   99.970326][ T3544]  ? snapshot_read.cold (user.c:?)
[   99.970329][ T3544]  ? br_multicast_flood (??:?)
[   99.970333][ T3544]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   99.970334][ T3544]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   99.970335][ T3544]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   99.970339][ T3544]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[   99.970344][ T3544]  br_init_port (net/bridge/br_stp_if.c:39)
[   99.970346][ T3544]  new_nbp (net/bridge/br_if.c:449)
[   99.970350][ T3544]  br_add_if (net/bridge/br_if.c:592)
[   99.970353][ T3544]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   99.970356][ T3544]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   99.970362][ T3544]  do_set_master (net/core/rtnetlink.c:3071)
[   99.970365][ T3544]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   99.970369][ T3544]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   99.970372][ T3544]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   99.970373][ T3544]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   99.970376][ T3544]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   99.970379][ T3544]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   99.970381][ T3544]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   99.970383][ T3544]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   99.970386][ T3544]  ? kasan_save_stack (mm/kasan/common.c:58)
[   99.970388][ T3544]  ? kasan_save_stack (mm/kasan/common.c:57)
[   99.970389][ T3544]  ? kasan_save_track (mm/kasan/common.c:78)
[   99.970390][ T3544]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   99.970393][ T3544]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   99.970395][ T3544]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[   99.970398][ T3544]  ? ___sys_sendmsg (net/socket.c:2758)
[   99.970401][ T3544]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   99.970403][ T3544]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   99.970406][ T3544]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   99.970408][ T3544]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   99.970409][ T3544]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   99.970411][ T3544]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   99.970412][ T3544]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   99.970414][ T3544]  ? __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)
[   99.970417][ T3544]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   99.970419][ T3544]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   99.970422][ T3544]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   99.970423][ T3544]  ? nla_get_range_signed (lib/nlattr.c:270)
[   99.970428][ T3544]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   99.970431][ T3544]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   99.970436][ T3544]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   99.970441][ T3544]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   99.970443][ T3544]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   99.970447][ T3544]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   99.970449][ T3544]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   99.970451][ T3544]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   99.970453][ T3544]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   99.970457][ T3544]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   99.970459][ T3544]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   99.970462][ T3544]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   99.970463][ T3544]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   99.970468][ T3544]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   99.970470][ T3544]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   99.970473][ T3544]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   99.970476][ T3544]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   99.970479][ T3544]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   99.970485][ T3544]  ? 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))
[   99.970487][ T3544]  ? 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))
[   99.970492][ T3544]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   99.970496][ T3544]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   99.970498][ T3544]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   99.970503][ T3544]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   99.970506][ T3544]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   99.970510][ T3544]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   99.970512][ T3544]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   99.970517][ T3544]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   99.970521][ T3544]  ____sys_sendmsg (net/socket.c:2713)
[   99.970524][ T3544]  ? copy_msghdr_from_user (net/socket.c:2650)
[   99.970526][ T3544]  ? sock_write_iter (net/socket.c:1269)
[   99.970528][ T3544]  ? move_addr_to_kernel (net/socket.c:258)
[   99.970535][ T3544]  ___sys_sendmsg (net/socket.c:2767)
[   99.970538][ T3544]  ? copy_msghdr_from_user (net/socket.c:2619)
[   99.970554][ T3544]  __sys_sendmsg (net/socket.c:2799)
[   99.970557][ T3544]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   99.970563][ T3544]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   99.970566][ T3544]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   99.970569][ T3544]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   99.970572][ T3544]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   99.970574][ T3544] RIP: 0033:0x7fa241dc854e
[   99.970578][ T3544] 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
[   99.970579][ T3544] RSP: 002b:00007ffd116b4000 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   99.970582][ T3544] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fa241dc854e
[   99.970584][ T3544] RDX: 0000000000000000 RSI: 00007ffd116b40b0 RDI: 0000000000000005
[   99.970585][ T3544] RBP: 00007ffd116b4010 R08: 0000000000000000 R09: 0000000000000000
[   99.970585][ T3544] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90ee9b
[   99.970586][ T3544] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffd116b4780
| [  101.751903][ T3648] softirqs last disabled at (29230): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [  101.751905][ T3648] Preemption disabled at:
| [  101.751906][ T3648] vprintk_emit (kernel/printk/printk.c:2471)
| [  101.751914][ T3648] Tainted: [W]=WARN
[  101.751915][ T3648] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  101.751917][ T3648] Call Trace:
[  101.751918][ T3648]  <TASK>
[  101.751920][ T3648]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[  101.751925][ T3648]  ? vprintk_emit (kernel/printk/printk.c:2471)
[  101.751927][ T3648]  __might_resched.cold (kernel/sched/core.c:9234)
[  101.751932][ T3648]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[  101.751936][ T3648]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[  101.751940][ T3648]  __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))
[  101.751942][ T3648]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[  101.751949][ T3648]  ? 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)
[  101.751951][ T3648]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[  101.751955][ T3648]  put_chars (drivers/char/virtio_console.c:1176)
[  101.751958][ T3648]  ? __send_to_port (drivers/char/virtio_console.c:654)
[  101.751959][ T3648]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[  101.751962][ T3648]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[  101.751968][ T3648]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[  101.751976][ T3648]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[  101.751978][ T3648]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  101.751980][ T3648]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  101.751985][ T3648]  console_emit_next_record (kernel/printk/printk.c:3183)
[  101.751989][ T3648]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[  101.751990][ T3648]  ? 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))
[  101.751994][ T3648]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  101.751995][ T3648]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  101.751999][ T3648]  console_flush_one_record (kernel/printk/printk.c:3268)
[  101.752004][ T3648]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[  101.752005][ T3648]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[  101.752011][ T3648]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[  101.752014][ T3648]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[  101.752016][ T3648]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  101.752017][ T3648]  ? 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)
[  101.752021][ T3648]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[  101.752023][ T3648]  ? vprintk_emit (kernel/printk/printk.c:2478)
[  101.752026][ T3648]  vprintk_emit (kernel/printk/printk.c:2479)
[  101.752029][ T3648]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[  101.752031][ T3648]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[  101.752034][ T3648]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[  101.752037][ T3648]  _printk (kernel/printk/printk.c:2504)
[  101.752041][ T3648]  ? snapshot_read.cold (user.c:?)
[  101.752044][ T3648]  ? br_multicast_flood (??:?)
[  101.752048][ T3648]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[  101.752049][ T3648]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[  101.752050][ T3648]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[  101.752055][ T3648]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[  101.752059][ T3648]  br_init_port (net/bridge/br_stp_if.c:39)
[  101.752061][ T3648]  new_nbp (net/bridge/br_if.c:449)
[  101.752065][ T3648]  br_add_if (net/bridge/br_if.c:592)
[  101.752067][ T3648]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[  101.752071][ T3648]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[  101.752076][ T3648]  do_set_master (net/core/rtnetlink.c:3071)
[  101.752080][ T3648]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[  101.752083][ T3648]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[  101.752086][ T3648]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[  101.752088][ T3648]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[  101.752091][ T3648]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[  101.752094][ T3648]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[  101.752096][ T3648]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[  101.752098][ T3648]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[  101.752104][ T3648]  ? kasan_save_stack (mm/kasan/common.c:58)
[  101.752106][ T3648]  ? kasan_save_stack (mm/kasan/common.c:57)
[  101.752108][ T3648]  ? kasan_save_track (mm/kasan/common.c:78)
[  101.752109][ T3648]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[  101.752111][ T3648]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[  101.752113][ T3648]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[  101.752116][ T3648]  ? ___sys_sendmsg (net/socket.c:2758)
[  101.752120][ T3648]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[  101.752122][ T3648]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[  101.752124][ T3648]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  101.752126][ T3648]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  101.752128][ T3648]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  101.752129][ T3648]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  101.752130][ T3648]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[  101.752133][ T3648]  ? __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)
[  101.752135][ T3648]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[  101.752137][ T3648]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[  101.752140][ T3648]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[  101.752141][ T3648]  ? nla_get_range_signed (lib/nlattr.c:270)
[  101.752146][ T3648]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  101.752148][ T3648]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[  101.752153][ T3648]  rtnl_newlink (net/core/rtnetlink.c:4215)
[  101.752158][ T3648]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[  101.752160][ T3648]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[  101.752165][ T3648]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[  101.752167][ T3648]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[  101.752169][ T3648]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[  101.752171][ T3648]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[  101.752174][ T3648]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[  101.752176][ T3648]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[  101.752179][ T3648]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[  101.752181][ T3648]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[  101.752185][ T3648]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[  101.752187][ T3648]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[  101.752190][ T3648]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[  101.752193][ T3648]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[  101.752196][ T3648]  ? netlink_ack (./include/linux/skbuff.h:2718)
[  101.752202][ T3648]  ? 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))
[  101.752204][ T3648]  ? 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))
[  101.752209][ T3648]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[  101.752213][ T3648]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[  101.752215][ T3648]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[  101.752219][ T3648]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[  101.752223][ T3648]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[  101.752227][ T3648]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[  101.752228][ T3648]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[  101.752234][ T3648]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[  101.752236][ T3648]  ____sys_sendmsg (net/socket.c:2713)
[  101.752239][ T3648]  ? copy_msghdr_from_user (net/socket.c:2650)
[  101.752241][ T3648]  ? sock_write_iter (net/socket.c:1269)
[  101.752242][ T3648]  ? move_addr_to_kernel (net/socket.c:258)
[  101.752250][ T3648]  ___sys_sendmsg (net/socket.c:2767)
[  101.752252][ T3648]  ? copy_msghdr_from_user (net/socket.c:2619)
[  101.752268][ T3648]  __sys_sendmsg (net/socket.c:2799)
[  101.752270][ T3648]  ? __sys_sendmsg_sock (net/socket.c:2780)
[  101.752276][ T3648]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  101.752279][ T3648]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[  101.752282][ T3648]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[  101.752285][ T3648]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[  101.752287][ T3648] RIP: 0033:0x7f37a007e54e
[  101.752291][ T3648] 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
[  101.752292][ T3648] RSP: 002b:00007fff33f65470 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[  101.752295][ T3648] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f37a007e54e
[  101.752297][ T3648] RDX: 0000000000000000 RSI: 00007fff33f65520 RDI: 0000000000000005
[  101.752298][ T3648] RBP: 00007fff33f65480 R08: 0000000000000000 R09: 0000000000000000
[  101.752298][ T3648] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90ee9d
[  101.752299][ T3648] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fff33f65bf0
| [  103.050667][ T3718] softirqs last disabled at (16200): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [  103.050669][ T3718] Preemption disabled at:
| [  103.050670][ T3718] vprintk_emit (kernel/printk/printk.c:2471)
| [  103.050679][ T3718] Tainted: [W]=WARN
[  103.050680][ T3718] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  103.050681][ T3718] Call Trace:
[  103.050683][ T3718]  <TASK>
[  103.050685][ T3718]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[  103.050691][ T3718]  ? vprintk_emit (kernel/printk/printk.c:2471)
[  103.050692][ T3718]  __might_resched.cold (kernel/sched/core.c:9234)
[  103.050697][ T3718]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[  103.050701][ T3718]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[  103.050706][ T3718]  __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))
[  103.050707][ T3718]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[  103.050714][ T3718]  ? 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)
[  103.050717][ T3718]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[  103.050720][ T3718]  put_chars (drivers/char/virtio_console.c:1176)
[  103.050723][ T3718]  ? __send_to_port (drivers/char/virtio_console.c:654)
[  103.050724][ T3718]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[  103.050728][ T3718]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[  103.050733][ T3718]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[  103.050741][ T3718]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[  103.050743][ T3718]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  103.050745][ T3718]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  103.050749][ T3718]  console_emit_next_record (kernel/printk/printk.c:3183)
[  103.050753][ T3718]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[  103.050755][ T3718]  ? 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))
[  103.050758][ T3718]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  103.050760][ T3718]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  103.050764][ T3718]  console_flush_one_record (kernel/printk/printk.c:3268)
[  103.050769][ T3718]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[  103.050770][ T3718]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[  103.050776][ T3718]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[  103.050779][ T3718]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[  103.050781][ T3718]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  103.050782][ T3718]  ? 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)
[  103.050786][ T3718]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[  103.050788][ T3718]  ? vprintk_emit (kernel/printk/printk.c:2478)
[  103.050791][ T3718]  vprintk_emit (kernel/printk/printk.c:2479)
[  103.050794][ T3718]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[  103.050796][ T3718]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[  103.050799][ T3718]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[  103.050802][ T3718]  _printk (kernel/printk/printk.c:2504)
[  103.050806][ T3718]  ? snapshot_read.cold (user.c:?)
[  103.050809][ T3718]  ? br_multicast_flood (??:?)
[  103.050813][ T3718]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[  103.050814][ T3718]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[  103.050815][ T3718]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[  103.050820][ T3718]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[  103.050824][ T3718]  br_init_port (net/bridge/br_stp_if.c:39)
[  103.050826][ T3718]  new_nbp (net/bridge/br_if.c:449)
[  103.050830][ T3718]  br_add_if (net/bridge/br_if.c:592)
[  103.050833][ T3718]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[  103.050836][ T3718]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[  103.050841][ T3718]  do_set_master (net/core/rtnetlink.c:3071)
[  103.050845][ T3718]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[  103.050848][ T3718]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[  103.050851][ T3718]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[  103.050853][ T3718]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[  103.050855][ T3718]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[  103.050859][ T3718]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[  103.050861][ T3718]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[  103.050862][ T3718]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[  103.050865][ T3718]  ? kasan_save_stack (mm/kasan/common.c:58)
[  103.050867][ T3718]  ? kasan_save_stack (mm/kasan/common.c:57)
[  103.050869][ T3718]  ? kasan_save_track (mm/kasan/common.c:78)
[  103.050870][ T3718]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[  103.050872][ T3718]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[  103.050874][ T3718]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[  103.050877][ T3718]  ? ___sys_sendmsg (net/socket.c:2758)
[  103.050880][ T3718]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[  103.050883][ T3718]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[  103.050885][ T3718]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  103.050887][ T3718]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  103.050888][ T3718]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  103.050889][ T3718]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  103.050891][ T3718]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[  103.050893][ T3718]  ? __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)
[  103.050896][ T3718]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[  103.050898][ T3718]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[  103.050901][ T3718]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[  103.050902][ T3718]  ? nla_get_range_signed (lib/nlattr.c:270)
[  103.050908][ T3718]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  103.050910][ T3718]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[  103.050915][ T3718]  rtnl_newlink (net/core/rtnetlink.c:4215)
[  103.050920][ T3718]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[  103.050922][ T3718]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[  103.050927][ T3718]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[  103.050929][ T3718]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[  103.050931][ T3718]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[  103.050933][ T3718]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[  103.050936][ T3718]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[  103.050938][ T3718]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[  103.050941][ T3718]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[  103.050943][ T3718]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[  103.050947][ T3718]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[  103.050949][ T3718]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[  103.050953][ T3718]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[  103.050956][ T3718]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[  103.050959][ T3718]  ? netlink_ack (./include/linux/skbuff.h:2718)
[  103.050965][ T3718]  ? 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))
[  103.050968][ T3718]  ? 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))
[  103.050972][ T3718]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[  103.050976][ T3718]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[  103.050979][ T3718]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[  103.050983][ T3718]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[  103.050987][ T3718]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[  103.050991][ T3718]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[  103.050992][ T3718]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[  103.050997][ T3718]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[  103.051000][ T3718]  ____sys_sendmsg (net/socket.c:2713)
[  103.051002][ T3718]  ? copy_msghdr_from_user (net/socket.c:2650)
[  103.051005][ T3718]  ? sock_write_iter (net/socket.c:1269)
[  103.051006][ T3718]  ? move_addr_to_kernel (net/socket.c:258)
[  103.051014][ T3718]  ___sys_sendmsg (net/socket.c:2767)
[  103.051016][ T3718]  ? copy_msghdr_from_user (net/socket.c:2619)
[  103.051032][ T3718]  __sys_sendmsg (net/socket.c:2799)
[  103.051035][ T3718]  ? __sys_sendmsg_sock (net/socket.c:2780)
[  103.051042][ T3718]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  103.051045][ T3718]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[  103.051048][ T3718]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[  103.051050][ T3718]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[  103.051053][ T3718] RIP: 0033:0x7fab3ef2254e
[  103.051056][ T3718] 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
[  103.051058][ T3718] RSP: 002b:00007ffce045a260 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[  103.051061][ T3718] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fab3ef2254e
[  103.051062][ T3718] RDX: 0000000000000000 RSI: 00007ffce045a310 RDI: 0000000000000005
[  103.051063][ T3718] RBP: 00007ffce045a270 R08: 0000000000000000 R09: 0000000000000000
[  103.051064][ T3718] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90ee9e
[  103.051065][ T3718] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffce045a9e0
| [  104.250488][ T3796] softirqs last disabled at (16778): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [  104.250490][ T3796] Preemption disabled at:
| [  104.250491][ T3796] vprintk_emit (kernel/printk/printk.c:2471)
| [  104.250499][ T3796] Tainted: [W]=WARN
[  104.250500][ T3796] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  104.250502][ T3796] Call Trace:
[  104.250503][ T3796]  <TASK>
[  104.250505][ T3796]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[  104.250511][ T3796]  ? vprintk_emit (kernel/printk/printk.c:2471)
[  104.250513][ T3796]  __might_resched.cold (kernel/sched/core.c:9234)
[  104.250517][ T3796]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[  104.250523][ T3796]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[  104.250528][ T3796]  __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))
[  104.250530][ T3796]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[  104.250536][ T3796]  ? 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)
[  104.250539][ T3796]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[  104.250543][ T3796]  put_chars (drivers/char/virtio_console.c:1176)
[  104.250545][ T3796]  ? __send_to_port (drivers/char/virtio_console.c:654)
[  104.250546][ T3796]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[  104.250550][ T3796]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[  104.250555][ T3796]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[  104.250563][ T3796]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[  104.250565][ T3796]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  104.250567][ T3796]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  104.250571][ T3796]  console_emit_next_record (kernel/printk/printk.c:3183)
[  104.250575][ T3796]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[  104.250577][ T3796]  ? 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))
[  104.250580][ T3796]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  104.250582][ T3796]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  104.250586][ T3796]  console_flush_one_record (kernel/printk/printk.c:3268)
[  104.250590][ T3796]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[  104.250592][ T3796]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[  104.250598][ T3796]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[  104.250601][ T3796]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[  104.250603][ T3796]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  104.250604][ T3796]  ? 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)
[  104.250608][ T3796]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[  104.250610][ T3796]  ? vprintk_emit (kernel/printk/printk.c:2478)
[  104.250613][ T3796]  vprintk_emit (kernel/printk/printk.c:2479)
[  104.250616][ T3796]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[  104.250618][ T3796]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[  104.250623][ T3796]  _printk (kernel/printk/printk.c:2504)
[  104.250626][ T3796]  ? snapshot_read.cold (user.c:?)
[  104.250630][ T3796]  ? br_multicast_flood (??:?)
[  104.250633][ T3796]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[  104.250634][ T3796]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[  104.250635][ T3796]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[  104.250640][ T3796]  br_set_state (net/bridge/br_stp.c:57 (discriminator 2))
[  104.250644][ T3796]  br_init_port (net/bridge/br_stp_if.c:39)
[  104.250647][ T3796]  new_nbp (net/bridge/br_if.c:449)
[  104.250650][ T3796]  br_add_if (net/bridge/br_if.c:592)
[  104.250653][ T3796]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[  104.250656][ T3796]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[  104.250662][ T3796]  do_set_master (net/core/rtnetlink.c:3071)
[  104.250665][ T3796]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[  104.250669][ T3796]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[  104.250672][ T3796]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[  104.250673][ T3796]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[  104.250676][ T3796]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[  104.250679][ T3796]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[  104.250681][ T3796]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[  104.250683][ T3796]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[  104.250685][ T3796]  ? kasan_save_stack (mm/kasan/common.c:58)
[  104.250688][ T3796]  ? kasan_save_stack (mm/kasan/common.c:57)
[  104.250689][ T3796]  ? kasan_save_track (mm/kasan/common.c:78)
[  104.250690][ T3796]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[  104.250692][ T3796]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[  104.250694][ T3796]  ? snd_ac97_proc_read_main (sound/pci/ac97/ac97_proc.c:320)
[  104.250697][ T3796]  ? ___sys_sendmsg (net/socket.c:2758)
[  104.250701][ T3796]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[  104.250703][ T3796]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[  104.250705][ T3796]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  104.250707][ T3796]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[  104.250709][ T3796]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  104.250710][ T3796]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  104.250711][ T3796]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[  104.250714][ T3796]  ? __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)
[  104.250716][ T3796]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[  104.250718][ T3796]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[  104.250721][ T3796]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[  104.250723][ T3796]  ? nla_get_range_signed (lib/nlattr.c:270)
[  104.250727][ T3796]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  104.250730][ T3796]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[  104.250735][ T3796]  rtnl_newlink (net/core/rtnetlink.c:4215)
[  104.250740][ T3796]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[  104.250742][ T3796]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[  104.250747][ T3796]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[  104.250748][ T3796]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[  104.250750][ T3796]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[  104.250752][ T3796]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[  104.250756][ T3796]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[  104.250758][ T3796]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[  104.250761][ T3796]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[  104.250762][ T3796]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[  104.250767][ T3796]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[  104.250769][ T3796]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[  104.250772][ T3796]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[  104.250775][ T3796]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[  104.250778][ T3796]  ? netlink_ack (./include/linux/skbuff.h:2718)
[  104.250784][ T3796]  ? 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))
[  104.250786][ T3796]  ? 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))
[  104.250791][ T3796]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[  104.250795][ T3796]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[  104.250797][ T3796]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[  104.250801][ T3796]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[  104.250805][ T3796]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[  104.250809][ T3796]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[  104.250811][ T3796]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[  104.250816][ T3796]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[  104.250819][ T3796]  ____sys_sendmsg (net/socket.c:2713)
[  104.250821][ T3796]  ? copy_msghdr_from_user (net/socket.c:2650)
[  104.250823][ T3796]  ? sock_write_iter (net/socket.c:1269)
[  104.250825][ T3796]  ? move_addr_to_kernel (net/socket.c:258)
[  104.250833][ T3796]  ___sys_sendmsg (net/socket.c:2767)
[  104.250835][ T3796]  ? copy_msghdr_from_user (net/socket.c:2619)
[  104.250851][ T3796]  __sys_sendmsg (net/socket.c:2799)
[  104.250854][ T3796]  ? __sys_sendmsg_sock (net/socket.c:2780)
[  104.250860][ T3796]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[  104.250863][ T3796]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[  104.250866][ T3796]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[  104.250869][ T3796]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[  104.250871][ T3796] RIP: 0033:0x7f5bf993754e
[  104.250875][ T3796] 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
[  104.250877][ T3796] RSP: 002b:00007ffe8d985910 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[  104.250880][ T3796] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f5bf993754e
[  104.250881][ T3796] RDX: 0000000000000000 RSI: 00007ffe8d9859c0 RDI: 0000000000000005
[  104.250882][ T3796] RBP: 00007ffe8d985920 R08: 0000000000000000 R09: 0000000000000000
[  104.250883][ T3796] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a90ee9f


Finger prints:
__alloc_skb:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars
netif_change_name:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars
__irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print
__irq_exit_rcu:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars
inet6_fill_ifla6_attrs:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars