======================================
| [    9.091252][  T186] softirqs last disabled at (31517): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [    9.091255][  T186] Preemption disabled at:
| [    9.091256][  T186] 0x0
| [    9.091267][  T186] Tainted: [W]=WARN
[    9.091268][  T186] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.091270][  T186] Call Trace:
[    9.091272][  T186]  <TASK>
[    9.091274][  T186]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[    9.091280][  T186]  __might_resched.cold (kernel/sched/core.c:9234)
[    9.091285][  T186]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[    9.091289][  T186]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[    9.091294][  T186]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[    9.091296][  T186]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[    9.091308][  T186]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[    9.091311][  T186]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[    9.091314][  T186]  put_chars (drivers/char/virtio_console.c:1176)
[    9.091316][  T186]  ? __send_to_port (drivers/char/virtio_console.c:654)
[    9.091317][  T186]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[    9.091322][  T186]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[    9.091327][  T186]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[    9.091333][  T186]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[    9.091335][  T186]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    9.091338][  T186]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[    9.091342][  T186]  console_emit_next_record (kernel/printk/printk.c:3183)
[    9.091345][  T186]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[    9.091347][  T186]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[    9.091350][  T186]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    9.091353][  T186]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[    9.091356][  T186]  console_flush_one_record (kernel/printk/printk.c:3268)
[    9.091360][  T186]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[    9.091362][  T186]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[    9.091368][  T186]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[    9.091372][  T186]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[    9.091373][  T186]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    9.091376][  T186]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[    9.091379][  T186]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[    9.091381][  T186]  ? vprintk_emit (kernel/printk/printk.c:2478)
[    9.091384][  T186]  vprintk_emit (kernel/printk/printk.c:2479)
[    9.091388][  T186]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[    9.091391][  T186]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[    9.091395][  T186]  _printk (kernel/printk/printk.c:2504)
[    9.091399][  T186]  ? snapshot_read.cold (user.c:?)
[    9.091401][  T186]  ? do_raw_spin_lock (./include/linux/instrumented.h:55 ./include/linux/atomic/atomic-instrumented.h:1301 ./include/asm-generic/qspinlock.h:112 kernel/locking/spinlock_debug.c:116)
[    9.091404][  T186]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[    9.091407][  T186]  ? do_raw_spin_lock (./include/linux/instrumented.h:55 ./include/linux/atomic/atomic-instrumented.h:1301 ./include/asm-generic/qspinlock.h:112 kernel/locking/spinlock_debug.c:116)
[    9.091410][  T186]  do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4))
[    9.091414][  T186]  ? exit_notify (kernel/exit.c:780)
[    9.091416][  T186]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[    9.091418][  T186]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    9.091422][  T186]  do_group_exit (kernel/exit.c:1151)
[    9.091425][  T186]  __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160)
[    9.091427][  T186]  x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232)
[    9.091429][  T186]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[    9.091432][  T186]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[    9.091435][  T186]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.091437][  T186] RIP: 0033:0x7f8a1e1911b8
[    9.091439][  T186] Code: Unable to access opcode bytes at 0x7f8a1e19118e.

Code starting with the faulting instruction
===========================================
[    9.091441][  T186] RSP: 002b:00007fffcf8fe8b8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
[    9.091443][  T186] RAX: ffffffffffffffda RBX: 00007f8a1e2c1f88 RCX: 00007f8a1e1911b8
[    9.091444][  T186] RDX: 00007f8a1dedbfc8 RSI: fffffffffffffeb8 RDI: 0000000000000000
[    9.091445][  T186] RBP: 00007fffcf8fe910 R08: 0000000000000000 R09: 0000000000008010
[    9.091446][  T186] R10: 00007fffcf8fe6d0 R11: 0000000000000246 R12: 0000000000000001
[    9.091447][  T186] R13: 0000000000000000 R14: 00007f8a1e2c0680 R15: 00007f8a1e2c1fa0
| [   10.988225][  T260] softirqs last disabled at (13018): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   10.988227][  T260] Preemption disabled at:
| [   10.988228][  T260] vprintk_emit (kernel/printk/printk.c:2471)
| [   10.988237][  T260] Tainted: [W]=WARN
[   10.988238][  T260] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.988240][  T260] Call Trace:
[   10.988241][  T260]  <TASK>
[   10.988243][  T260]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   10.988249][  T260]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   10.988251][  T260]  __might_resched.cold (kernel/sched/core.c:9234)
[   10.988255][  T260]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   10.988260][  T260]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   10.988267][  T260]  __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))
[   10.988270][  T260]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.988278][  T260]  ? 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)
[   10.988281][  T260]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.988284][  T260]  put_chars (drivers/char/virtio_console.c:1176)
[   10.988287][  T260]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   10.988291][  T260]  ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928)
[   10.988295][  T260]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   10.988297][  T260]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   10.988299][  T260]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.988301][  T260]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.988304][  T260]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   10.988306][  T260]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   10.988317][  T260]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.988321][  T260]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.988325][  T260]  console_emit_next_record (kernel/printk/printk.c:3183)
[   10.988328][  T260]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   10.988330][  T260]  ? 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))
[   10.988333][  T260]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.988335][  T260]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.988339][  T260]  console_flush_one_record (kernel/printk/printk.c:3268)
[   10.988343][  T260]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   10.988344][  T260]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.988349][  T260]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   10.988352][  T260]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   10.988354][  T260]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.988356][  T260]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   10.988359][  T260]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   10.988361][  T260]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   10.988365][  T260]  vprintk_emit (kernel/printk/printk.c:2479)
[   10.988369][  T260]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   10.988373][  T260]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   10.988374][  T260]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   10.988378][  T260]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   10.988382][  T260]  _printk (kernel/printk/printk.c:2504)
[   10.988385][  T260]  ? snapshot_read.cold (user.c:?)
[   10.988389][  T260]  ? br_multicast_flood (??:?) bridge
[   10.988401][  T260]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   10.988402][  T260]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   10.988403][  T260]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   10.988408][  T260] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   10.988417][  T260] br_init_port (net/bridge/br_stp_if.c:39) bridge
[   10.988425][  T260] new_nbp (net/bridge/br_if.c:449) bridge
[   10.988434][  T260] br_add_if (net/bridge/br_if.c:592) bridge
[   10.988442][  T260]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   10.988446][  T260]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   10.988449][  T260]  ? __kernel_text_address (kernel/extable.c:79)
[   10.988452][  T260]  do_set_master (net/core/rtnetlink.c:3071)
[   10.988457][  T260]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   10.988460][  T260]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   10.988463][  T260]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   10.988464][  T260]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   10.988467][  T260]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   10.988470][  T260]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   10.988473][  T260]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   10.988475][  T260]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   10.988477][  T260]  ? kasan_save_stack (mm/kasan/common.c:58)
[   10.988480][  T260]  ? kasan_save_stack (mm/kasan/common.c:57)
[   10.988482][  T260]  ? kasan_save_track (mm/kasan/common.c:78)
[   10.988484][  T260]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.988486][  T260]  ? netlink_seq_next (net/netlink/af_netlink.c:2685)
[   10.988489][  T260]  ? ___sys_sendmsg (net/socket.c:2757)
[   10.988493][  T260]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   10.988495][  T260]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   10.988497][  T260]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.988500][  T260]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.988501][  T260]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.988503][  T260]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.988505][  T260]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   10.988509][  T260]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   10.988510][  T260]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   10.988512][  T260]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   10.988515][  T260]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   10.988517][  T260]  ? nla_get_range_signed (lib/nlattr.c:270)
[   10.988522][  T260]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   10.988527][  T260]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   10.988532][  T260]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   10.988534][  T260]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.988538][  T260]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   10.988540][  T260]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   10.988542][  T260]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   10.988543][  T260]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   10.988547][  T260]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   10.988549][  T260]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   10.988552][  T260]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   10.988553][  T260]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.988557][  T260]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   10.988559][  T260]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   10.988562][  T260]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   10.988564][  T260]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   10.988566][  T260]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   10.988572][  T260]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   10.988574][  T260]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   10.988578][  T260]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   10.988581][  T260]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   10.988584][  T260]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.988588][  T260]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   10.988591][  T260]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   10.988595][  T260]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   10.988600][  T260]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   10.988602][  T260]  ? copy_msghdr_from_user (net/socket.c:2650)
[   10.988604][  T260]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   10.988606][  T260]  ? move_addr_to_kernel (net/socket.c:258)
[   10.988613][  T260]  ___sys_sendmsg (net/socket.c:2767)
[   10.988616][  T260]  ? copy_msghdr_from_user (net/socket.c:2619)
[   10.988631][  T260]  __sys_sendmsg (net/socket.c:2799)
[   10.988634][  T260]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   10.988640][  T260]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.988643][  T260]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   10.988645][  T260]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   10.988648][  T260]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   10.988651][  T260] RIP: 0033:0x7f78344da54e
[   10.988654][  T260] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   10.988656][  T260] RSP: 002b:00007fff08d285e0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   10.988659][  T260] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f78344da54e
[   10.988660][  T260] RDX: 0000000000000000 RSI: 00007fff08d28690 RDI: 0000000000000005
[   10.988661][  T260] RBP: 00007fff08d285f0 R08: 0000000000000000 R09: 0000000000000000
[   10.988661][  T260] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a910138
[   10.988662][  T260] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fff08d28d50
| [   12.239459][  T309] softirqs last disabled at (12578): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   12.239461][  T309] Preemption disabled at:
| [   12.239462][  T309] vprintk_emit (kernel/printk/printk.c:2471)
| [   12.239471][  T309] Tainted: [W]=WARN
[   12.239472][  T309] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   12.239474][  T309] Call Trace:
[   12.239475][  T309]  <TASK>
[   12.239477][  T309]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   12.239483][  T309]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   12.239485][  T309]  __might_resched.cold (kernel/sched/core.c:9234)
[   12.239490][  T309]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   12.239494][  T309]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   12.239499][  T309]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   12.239501][  T309]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   12.239507][  T309]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   12.239510][  T309]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   12.239513][  T309]  put_chars (drivers/char/virtio_console.c:1176)
[   12.239515][  T309]  ? prb_final_commit (kernel/printk/printk_ringbuffer.c:1842)
[   12.239517][  T309]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   12.239519][  T309]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   12.239524][  T309]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   12.239526][  T309]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   12.239530][  T309]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   12.239533][  T309]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   12.239534][  T309]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.239536][  T309]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.239540][  T309]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   12.239542][  T309]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   12.239545][  T309]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.239547][  T309]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.239551][  T309]  console_emit_next_record (kernel/printk/printk.c:3183)
[   12.239555][  T309]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   12.239556][  T309]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   12.239559][  T309]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.239562][  T309]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.239566][  T309]  console_flush_one_record (kernel/printk/printk.c:3268)
[   12.239570][  T309]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   12.239571][  T309]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.239576][  T309]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   12.239579][  T309]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   12.239581][  T309]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.239583][  T309]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   12.239587][  T309]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   12.239588][  T309]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   12.239591][  T309]  vprintk_emit (kernel/printk/printk.c:2479)
[   12.239595][  T309]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   12.239598][  T309]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   12.239600][  T309]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   12.239604][  T309]  _printk (kernel/printk/printk.c:2504)
[   12.239607][  T309]  ? snapshot_read.cold (user.c:?)
[   12.239611][  T309]  ? br_multicast_flood (??:?) bridge
[   12.239624][  T309]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   12.239625][  T309]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   12.239627][  T309]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   12.239631][  T309] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   12.239641][  T309] br_init_port (net/bridge/br_stp_if.c:39) bridge
[   12.239649][  T309] new_nbp (net/bridge/br_if.c:449) bridge
[   12.239658][  T309] br_add_if (net/bridge/br_if.c:592) bridge
[   12.239665][  T309]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   12.239669][  T309]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   12.239672][  T309]  ? __kernel_text_address (kernel/extable.c:79)
[   12.239676][  T309]  do_set_master (net/core/rtnetlink.c:3071)
[   12.239680][  T309]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   12.239683][  T309]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   12.239686][  T309]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   12.239687][  T309]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   12.239689][  T309]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   12.239693][  T309]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   12.239696][  T309]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   12.239698][  T309]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   12.239700][  T309]  ? kasan_save_stack (mm/kasan/common.c:58)
[   12.239703][  T309]  ? kasan_save_stack (mm/kasan/common.c:57)
[   12.239704][  T309]  ? kasan_save_track (mm/kasan/common.c:78)
[   12.239707][  T309]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.239709][  T309]  ? netlink_seq_next (net/netlink/af_netlink.c:2685)
[   12.239712][  T309]  ? ___sys_sendmsg (net/socket.c:2757)
[   12.239716][  T309]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   12.239718][  T309]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   12.239720][  T309]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.239723][  T309]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   12.239724][  T309]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.239726][  T309]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.239728][  T309]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   12.239732][  T309]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   12.239735][  T309]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   12.239737][  T309]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   12.239740][  T309]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   12.239742][  T309]  ? nla_get_range_signed (lib/nlattr.c:270)
[   12.239747][  T309]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   12.239752][  T309]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   12.239757][  T309]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   12.239759][  T309]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.239763][  T309]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   12.239765][  T309]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   12.239767][  T309]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   12.239769][  T309]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   12.239773][  T309]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   12.239775][  T309]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   12.239778][  T309]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   12.239779][  T309]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.239783][  T309]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   12.239785][  T309]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   12.239788][  T309]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   12.239790][  T309]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   12.239793][  T309]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   12.239799][  T309]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   12.239801][  T309]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   12.239805][  T309]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   12.239808][  T309]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   12.239811][  T309]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   12.239815][  T309]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   12.239819][  T309]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   12.239822][  T309]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   12.239828][  T309]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   12.239830][  T309]  ? copy_msghdr_from_user (net/socket.c:2650)
[   12.239832][  T309]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   12.239834][  T309]  ? move_addr_to_kernel (net/socket.c:258)
[   12.239841][  T309]  ___sys_sendmsg (net/socket.c:2767)
[   12.239844][  T309]  ? copy_msghdr_from_user (net/socket.c:2619)
[   12.239859][  T309]  __sys_sendmsg (net/socket.c:2799)
[   12.239861][  T309]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   12.239868][  T309]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   12.239871][  T309]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   12.239873][  T309]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   12.239876][  T309]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   12.239879][  T309] RIP: 0033:0x7fad27b6854e
[   12.239882][  T309] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   12.239884][  T309] RSP: 002b:00007fff7d6ffcf0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   12.239886][  T309] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007fad27b6854e
[   12.239888][  T309] RDX: 0000000000000000 RSI: 00007fff7d6ffda0 RDI: 0000000000000005
[   12.239889][  T309] RBP: 00007fff7d6ffd00 R08: 0000000000000000 R09: 0000000000000000
[   12.239890][  T309] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a910139
[   12.239891][  T309] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fff7d700460
| [   13.366809][  T355] softirqs last disabled at (17636): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   13.366811][  T355] Preemption disabled at:
| [   13.366812][  T355] vprintk_emit (kernel/printk/printk.c:2471)
| [   13.366821][  T355] Tainted: [W]=WARN
[   13.366822][  T355] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.366824][  T355] Call Trace:
[   13.366825][  T355]  <TASK>
[   13.366827][  T355]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   13.366833][  T355]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   13.366835][  T355]  __might_resched.cold (kernel/sched/core.c:9234)
[   13.366839][  T355]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   13.366843][  T355]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   13.366849][  T355]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   13.366851][  T355]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   13.366857][  T355]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   13.366859][  T355]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   13.366862][  T355]  put_chars (drivers/char/virtio_console.c:1176)
[   13.366864][  T355]  ? prb_final_commit (kernel/printk/printk_ringbuffer.c:1842)
[   13.366866][  T355]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   13.366869][  T355]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   13.366873][  T355]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   13.366876][  T355]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   13.366879][  T355]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   13.366882][  T355]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   13.366884][  T355]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.366885][  T355]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.366889][  T355]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   13.366891][  T355]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   13.366894][  T355]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.366897][  T355]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   13.366901][  T355]  console_emit_next_record (kernel/printk/printk.c:3183)
[   13.366904][  T355]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   13.366906][  T355]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   13.366909][  T355]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.366912][  T355]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   13.366916][  T355]  console_flush_one_record (kernel/printk/printk.c:3268)
[   13.366920][  T355]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   13.366921][  T355]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.366926][  T355]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   13.366929][  T355]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   13.366931][  T355]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.366933][  T355]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   13.366937][  T355]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   13.366938][  T355]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   13.366942][  T355]  vprintk_emit (kernel/printk/printk.c:2479)
[   13.366946][  T355]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   13.366948][  T355]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   13.366951][  T355]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   13.366954][  T355]  _printk (kernel/printk/printk.c:2504)
[   13.366958][  T355]  ? snapshot_read.cold (user.c:?)
[   13.366961][  T355]  ? br_multicast_flood (??:?) bridge
[   13.366974][  T355]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   13.366975][  T355]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   13.366976][  T355]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   13.366981][  T355] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   13.366990][  T355] br_init_port (net/bridge/br_stp_if.c:39) bridge
[   13.366999][  T355] new_nbp (net/bridge/br_if.c:449) bridge
[   13.367008][  T355] br_add_if (net/bridge/br_if.c:592) bridge
[   13.367014][  T355]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   13.367018][  T355]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   13.367021][  T355]  ? __kernel_text_address (kernel/extable.c:79)
[   13.367025][  T355]  do_set_master (net/core/rtnetlink.c:3071)
[   13.367030][  T355]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   13.367033][  T355]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   13.367036][  T355]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   13.367037][  T355]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   13.367039][  T355]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   13.367043][  T355]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   13.367045][  T355]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   13.367047][  T355]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   13.367049][  T355]  ? kasan_save_stack (mm/kasan/common.c:58)
[   13.367052][  T355]  ? kasan_save_stack (mm/kasan/common.c:57)
[   13.367054][  T355]  ? kasan_save_track (mm/kasan/common.c:78)
[   13.367057][  T355]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.367058][  T355]  ? netlink_seq_next (net/netlink/af_netlink.c:2685)
[   13.367061][  T355]  ? ___sys_sendmsg (net/socket.c:2757)
[   13.367065][  T355]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   13.367067][  T355]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   13.367070][  T355]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.367072][  T355]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   13.367073][  T355]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.367075][  T355]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.367077][  T355]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   13.367081][  T355]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   13.367084][  T355]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   13.367086][  T355]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   13.367090][  T355]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   13.367091][  T355]  ? nla_get_range_signed (lib/nlattr.c:270)
[   13.367096][  T355]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   13.367101][  T355]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   13.367106][  T355]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   13.367108][  T355]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.367112][  T355]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   13.367114][  T355]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   13.367116][  T355]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   13.367118][  T355]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   13.367121][  T355]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   13.367124][  T355]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   13.367126][  T355]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   13.367128][  T355]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.367132][  T355]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   13.367134][  T355]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   13.367137][  T355]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   13.367139][  T355]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   13.367142][  T355]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   13.367150][  T355]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   13.367151][  T355]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   13.367155][  T355]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   13.367159][  T355]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   13.367162][  T355]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.367166][  T355]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   13.367169][  T355]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   13.367173][  T355]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   13.367178][  T355]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   13.367180][  T355]  ? copy_msghdr_from_user (net/socket.c:2650)
[   13.367183][  T355]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   13.367184][  T355]  ? move_addr_to_kernel (net/socket.c:258)
[   13.367191][  T355]  ___sys_sendmsg (net/socket.c:2767)
[   13.367194][  T355]  ? copy_msghdr_from_user (net/socket.c:2619)
[   13.367209][  T355]  __sys_sendmsg (net/socket.c:2799)
[   13.367212][  T355]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   13.367218][  T355]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.367222][  T355]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   13.367224][  T355]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   13.367227][  T355]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   13.367229][  T355] RIP: 0033:0x7fa1753d054e
[   13.367232][  T355] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   13.367234][  T355] RSP: 002b:00007ffce14e24d0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   13.367237][  T355] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007fa1753d054e
[   13.367238][  T355] RDX: 0000000000000000 RSI: 00007ffce14e2580 RDI: 0000000000000005
[   13.367239][  T355] RBP: 00007ffce14e24e0 R08: 0000000000000000 R09: 0000000000000000
[   13.367240][  T355] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a91013a
[   13.367241][  T355] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffce14e2c40
| [   20.629981][  T437] softirqs last disabled at (25787): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   20.629984][  T437] Preemption disabled at:
| [   20.629985][  T437] vprintk_emit (kernel/printk/printk.c:2471)
| [   20.629994][  T437] Tainted: [W]=WARN
[   20.629995][  T437] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   20.629996][  T437] Call Trace:
[   20.629998][  T437]  <TASK>
[   20.629999][  T437]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   20.630005][  T437]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   20.630007][  T437]  __might_resched.cold (kernel/sched/core.c:9234)
[   20.630012][  T437]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   20.630016][  T437]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   20.630021][  T437]  __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))
[   20.630023][  T437]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   20.630029][  T437]  ? 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)
[   20.630032][  T437]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   20.630035][  T437]  put_chars (drivers/char/virtio_console.c:1176)
[   20.630037][  T437]  ? desc_read_finalized_seq (kernel/printk/printk_ringbuffer.c:1934)
[   20.630038][  T437]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   20.630041][  T437]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   20.630045][  T437]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   20.630049][  T437]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   20.630051][  T437]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   20.630053][  T437]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   20.630057][  T437]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   20.630058][  T437]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   20.630061][  T437]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   20.630064][  T437]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   20.630068][  T437]  console_emit_next_record (kernel/printk/printk.c:3183)
[   20.630072][  T437]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   20.630074][  T437]  ? 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))
[   20.630077][  T437]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   20.630079][  T437]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   20.630083][  T437]  console_flush_one_record (kernel/printk/printk.c:3268)
[   20.630086][  T437]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   20.630088][  T437]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   20.630093][  T437]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   20.630096][  T437]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   20.630097][  T437]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   20.630100][  T437]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   20.630103][  T437]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   20.630105][  T437]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   20.630108][  T437]  vprintk_emit (kernel/printk/printk.c:2479)
[   20.630112][  T437]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   20.630117][  T437]  ? llc_exit (./arch/x86/include/asm/atomic.h:28 ./include/linux/atomic/atomic-arch-fallback.h:503 ./include/linux/atomic/atomic-instrumented.h:68 ./include/linux/refcount.h:134 net/llc/llc_core.c:38 net/llc/llc_core.c:96) llc
[   20.630120][  T437]  _printk (kernel/printk/printk.c:2504)
[   20.630124][  T437]  ? snapshot_read.cold (user.c:?)
[   20.630130][  T437]  ? do_one_initcall (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 ./include/linux/cpumask.h:650 ./include/linux/cpumask.h:1232 ./include/trace/events/initcall.h:27 init/main.c:1356)
[   20.630133][  T437] gact_init_module (net/sched/act_gact.c:180) act_gact
[   20.630136][  T437]  do_one_initcall (init/main.c:1357)
[   20.630138][  T437]  ? trace_event_raw_event_initcall_level (./include/trace/events/initcall.h:10)
[   20.630143][  T437]  ? do_init_module (./include/linux/slab.h:991 (discriminator 1) kernel/module/main.c:3105 (discriminator 1))
[   20.630146][  T437]  ? kasan_unpoison (mm/kasan/shadow.c:146 mm/kasan/shadow.c:178)
[   20.630152][  T437]  do_init_module (kernel/module/main.c:3117)
[   20.630156][  T437]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   20.630160][  T437]  ? free_module (./include/trace/events/module.h:50 (discriminator 19))
[   20.630163][  T437]  ? kfree (./include/linux/kasan.h:235 mm/slub.c:2748 mm/slub.c:6499 mm/slub.c:6792)
[   20.630167][  T437]  load_module (kernel/module/main.c:3593)
[   20.630174][  T437]  ? layout_and_allocate.isra.0 (kernel/module/main.c:3016)
[   20.630178][  T437]  ? __ia32_sys_fsconfig (??:?)
[   20.630181][  T437]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   20.630184][  T437]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   20.630187][  T437]  init_module_from_file (kernel/module/main.c:3790)
[   20.630191][  T437]  ? __do_sys_init_module (kernel/module/main.c:3664)
[   20.630198][  T437]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   20.630202][  T437]  ? 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)
[   20.630205][  T437]  idempotent_init_module (kernel/module/main.c:3802)
[   20.630208][  T437]  ? init_module_from_file (kernel/module/main.c:3791)
[   20.630214][  T437]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   20.630216][  T437]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   20.630222][  T437]  __x64_sys_finit_module (kernel/module/main.c:3828 kernel/module/main.c:3812 kernel/module/main.c:3812)
[   20.630224][  T437]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   20.630228][  T437]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   20.630230][  T437]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   20.630233][  T437]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   20.630235][  T437] RIP: 0033:0x7fdf0a4b837d
[   20.630238][  T437] Code: ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa 48 89 f8 48 89 f7 48 89 d6 48 89 ca 4d 89 c2 4d 89 c8 4c 8b 4c 24 08 0f 05 <48> 3d 01 f0 ff ff 73 01 c3 48 8b 0d 4b aa 0f 00 f7 d8 64 89 01 48
All code
========
   0:	ff c3                	inc    %ebx
   2:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
   9:	00 00 00 
   c:	90                   	nop
   d:	f3 0f 1e fa          	endbr64
  11:	48 89 f8             	mov    %rdi,%rax
  14:	48 89 f7             	mov    %rsi,%rdi
  17:	48 89 d6             	mov    %rdx,%rsi
  1a:	48 89 ca             	mov    %rcx,%rdx
  1d:	4d 89 c2             	mov    %r8,%r10
  20:	4d 89 c8             	mov    %r9,%r8
  23:	4c 8b 4c 24 08       	mov    0x8(%rsp),%r9
  28:	0f 05                	syscall
  2a:*	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax		<-- trapping instruction
  30:	73 01                	jae    0x33
  32:	c3                   	ret
  33:	48 8b 0d 4b aa 0f 00 	mov    0xfaa4b(%rip),%rcx        # 0xfaa85
  3a:	f7 d8                	neg    %eax
  3c:	64 89 01             	mov    %eax,%fs:(%rcx)
  3f:	48                   	rex.W

Code starting with the faulting instruction
===========================================
   0:	48 3d 01 f0 ff ff    	cmp    $0xfffffffffffff001,%rax
   6:	73 01                	jae    0x9
   8:	c3                   	ret
   9:	48 8b 0d 4b aa 0f 00 	mov    0xfaa4b(%rip),%rcx        # 0xfaa5b
  10:	f7 d8                	neg    %eax
  12:	64 89 01             	mov    %eax,%fs:(%rcx)
  15:	48                   	rex.W
[   20.630240][  T437] RSP: 002b:00007ffdf1002818 EFLAGS: 00000246 ORIG_RAX: 0000000000000139
[   20.630243][  T437] RAX: ffffffffffffffda RBX: 0000555b86e67810 RCX: 00007fdf0a4b837d
[   20.630244][  T437] RDX: 0000000000000000 RSI: 0000555b7b8ecffd RDI: 0000000000000000
[   20.630245][  T437] RBP: 00007ffdf10028b0 R08: 0000000000000000 R09: 0000000000000000
[   20.630246][  T437] R10: 0000000000000000 R11: 0000000000000246 R12: 0000555b7b8ecffd
[   20.630247][  T437] R13: 0000555b86e67960 R14: 0000000000040000 R15: 0000000000000000
| [   26.487218][    C0] softirqs last disabled at (904783): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   26.487220][    C0] Preemption disabled at:
| [   26.487220][    C0] schedule_preempt_disabled (kernel/sched/core.c:7420)
| [   26.487229][    C0] Tainted: [W]=WARN
[   26.487230][    C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   26.487231][    C0] Call Trace:
[   26.487233][    C0]  <IRQ>
[   26.487234][    C0]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   26.487239][    C0]  ? schedule_preempt_disabled (kernel/sched/core.c:7420)
[   26.487241][    C0]  __might_resched.cold (kernel/sched/core.c:9234)
[   26.487244][    C0]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   26.487248][    C0]  ? __asan_memcpy (mm/kasan/shadow.c:106 (discriminator 1))
[   26.487250][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.487254][    C0]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   26.487257][    C0]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   26.487260][    C0]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   26.487264][    C0]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   26.487266][    C0]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   26.487269][    C0]  put_chars (drivers/char/virtio_console.c:1176)
[   26.487272][    C0]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   26.487274][    C0]  ? console_prepend_replay (kernel/printk/printk.c:3005)
[   26.487277][    C0]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   26.487281][    C0]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   26.487282][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.487284][    C0]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   26.487286][    C0]  console_emit_next_record (kernel/printk/printk.c:3183)
[   26.487288][    C0]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   26.487291][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.487292][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.487294][    C0]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   26.487296][    C0]  ? console_flush_one_record (kernel/printk/printk.c:3247)
[   26.487297][    C0]  console_flush_one_record (kernel/printk/printk.c:3268)
[   26.487300][    C0]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   26.487302][    C0]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   26.487304][    C0]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   26.487306][    C0]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   26.487307][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.487309][    C0]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   26.487310][    C0]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   26.487312][    C0]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   26.487314][    C0]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   26.487316][    C0]  vprintk_emit (kernel/printk/printk.c:2479)
[   26.487318][    C0]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   26.487320][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.487322][    C0]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   26.487323][    C0]  ? x86_64_start_kernel (arch/x86/kernel/head64.c:264)
[   26.487328][    C0]  _printk (kernel/printk/printk.c:2504)
[   26.487331][    C0]  ? snapshot_read.cold (user.c:?)
[   26.487333][    C0]  ? arch_stack_walk (arch/x86/kernel/stacktrace.c:25)
[   26.487337][    C0]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   26.487339][    C0]  ? nbcon_cpu_emergency_enter (./include/linux/instrumented.h:112 ./include/linux/atomic/atomic-instrumented.h:435 kernel/printk/nbcon.c:1723)
[   26.487341][    C0]  print_irq_inversion_bug.part.0 (kernel/locking/lockdep.c:4097 (discriminator 1))
[   26.487343][    C0]  mark_lock_irq (kernel/locking/lockdep.c:4095 kernel/locking/lockdep.c:4174 kernel/locking/lockdep.c:4310)
[   26.487346][    C0]  mark_lock (kernel/locking/lockdep.c:4769)
[   26.487348][    C0]  mark_usage (kernel/locking/lockdep.c:4658)
[   26.487349][    C0]  __lock_acquire (kernel/locking/lockdep.c:5208)
[   26.487352][    C0]  lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   26.487353][    C0]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   26.487372][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.487374][    C0]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   26.487376][    C0]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   26.487383][    C0]  _raw_spin_lock (./include/linux/spinlock_api_smp.h:190 (discriminator 1) kernel/locking/spinlock.c:173 (discriminator 1))
[   26.487384][    C0]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   26.487391][    C0] br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   26.487397][    C0]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   26.487403][    C0]  call_timer_fn (kernel/time/timer.c:1748)
[   26.487406][    C0]  ? detach_if_pending (./include/linux/list.h:1159)
[   26.487408][    C0]  ? debug_object_active_state (lib/debugobjects.c:1122)
[   26.487412][    C0]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   26.487414][    C0]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   26.487415][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.487418][    C0]  __run_timers (kernel/time/timer.c:1799 kernel/time/timer.c:2374)
[   26.487419][    C0]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   26.487426][    C0]  ? __bpf_trace_itimer_expire (./include/trace/events/timer.h:407)
[   26.487428][    C0]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   26.487430][    C0]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   26.487433][    C0]  run_timer_softirq (kernel/time/timer.c:2386 kernel/time/timer.c:2395 kernel/time/timer.c:2403)
[   26.487435][    C0]  ? __run_timers (./include/trace/events/timer.h:138 (discriminator 19))
[   26.487436][    C0]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   26.487439][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.487440][    C0]  handle_softirqs (kernel/softirq.c:645)
[   26.487442][    C0]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   26.487444][    C0]  ? _local_bh_enable (kernel/softirq.c:428 (discriminator 1))
[   26.487446][    C0]  __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
[   26.487447][    C0]  irq_exit_rcu (kernel/softirq.c:784)
[   26.487449][    C0]  sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1062 (discriminator 37) arch/x86/kernel/apic/apic.c:1062 (discriminator 37))
[   26.487452][    C0]  </IRQ>
[   26.487452][    C0]  <TASK>
[   26.487453][    C0]  ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:4427 (discriminator 2))
[   26.487455][    C0]  asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:674)
[   26.487457][    C0] RIP: 0010:pv_native_safe_halt (./arch/x86/include/asm/irqflags.h:48 arch/x86/kernel/paravirt.c:63)
[   26.487459][    C0] Code: 48 8b 3d 94 e2 f5 01 e8 1f 00 00 00 48 2b 05 58 a3 95 00 c3 0f 1f 80 00 00 00 00 f3 0f 1e fa eb 07 0f 00 2d 13 96 11 00 fb f4 <c3> 0f 1f 40 d6 48 83 ec 20 8b 17 49 89 f8 83 e2 fe 41 89 d2 0f 01
All code
========
   0:	48 8b 3d 94 e2 f5 01 	mov    0x1f5e294(%rip),%rdi        # 0x1f5e29b
   7:	e8 1f 00 00 00       	call   0x2b
   c:	48 2b 05 58 a3 95 00 	sub    0x95a358(%rip),%rax        # 0x95a36b
  13:	c3                   	ret
  14:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  1b:	f3 0f 1e fa          	endbr64
  1f:	eb 07                	jmp    0x28
  21:	0f 00 2d 13 96 11 00 	verw   0x119613(%rip)        # 0x11963b
  28:	fb                   	sti
  29:	f4                   	hlt
  2a:*	c3                   	ret		<-- trapping instruction
  2b:	0f 1f 40 d6          	nopl   -0x2a(%rax)
  2f:	48 83 ec 20          	sub    $0x20,%rsp
  33:	8b 17                	mov    (%rdi),%edx
  35:	49 89 f8             	mov    %rdi,%r8
  38:	83 e2 fe             	and    $0xfffffffe,%edx
  3b:	41 89 d2             	mov    %edx,%r10d
  3e:	0f                   	.byte 0xf
  3f:	01                   	.byte 0x1

Code starting with the faulting instruction
===========================================
   0:	c3                   	ret
   1:	0f 1f 40 d6          	nopl   -0x2a(%rax)
   5:	48 83 ec 20          	sub    $0x20,%rsp
   9:	8b 17                	mov    (%rdi),%edx
   b:	49 89 f8             	mov    %rdi,%r8
   e:	83 e2 fe             	and    $0xfffffffe,%edx
  11:	41 89 d2             	mov    %edx,%r10d
  14:	0f                   	.byte 0xf
  15:	01                   	.byte 0x1
[   26.487461][    C0] RSP: 0018:ffffffffa8c07cf8 EFLAGS: 00000296
[   26.487464][    C0] RAX: 00000000000dce4d RBX: ffffffffa8c1c600 RCX: ffffffffa5cf0307
[   26.487466][    C0] RDX: ffffffffa8c1c600 RSI: ffffffffa8a38b01 RDI: ffffffffa848d8e0
[   26.487466][    C0] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
[   26.487467][    C0] R10: 0000000000000000 R11: 0000000000000001 R12: 1ffffffff5180fa2
[   26.487468][    C0] R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000014770
[   26.487470][    C0]  ? cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   26.487473][    C0]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   26.487474][    C0]  default_idle (./arch/x86/include/asm/paravirt.h:62 arch/x86/kernel/process.c:768)
[   26.487476][    C0]  default_idle_call (kernel/sched/idle.c:122)
[   26.487478][    C0]  cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   26.487479][    C0]  ? arch_cpu_idle_exit+0x40/0x40
[   26.487481][    C0]  ? mark_tsc_async_resets (arch/x86/kernel/tsc_sync.c:49)
[   26.487483][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.487485][    C0]  do_idle (kernel/sched/idle.c:355)
[   26.487487][    C0]  cpu_startup_entry (kernel/sched/idle.c:454)
[   26.487488][    C0]  rest_init (init/main.c:727)
[   26.487490][    C0]  ? __cpuidle_text_end (??:?)
[   26.487493][    C0]  ? rest_init (init/main.c:727)
[   26.487495][    C0]  ? acpi_hw_set_mode (drivers/acpi/acpica/hwacpi.c:72 (discriminator 1))
[   26.487498][    C0]  ? cpus_read_unlock (./include/linux/percpu-rwsem.h:125 (discriminator 1) kernel/cpu.c:502 (discriminator 1))
[   26.487501][    C0]  ? acpi_enable (drivers/acpi/acpica/evxfevnt.c:47)
[   26.487504][    C0]  start_kernel (init/main.c:1185)
[   26.487506][    C0]  x86_64_start_reservations (arch/x86/kernel/head64.c:310)
[   26.487507][    C0]  x86_64_start_kernel (arch/x86/kernel/head64.c:291)
[   26.487509][    C0]  common_startup_64 (arch/x86/kernel/head_64.S:418)
| [   26.550988][    C0]
| [   26.551058][    C0]
| [   26.551058][    C0] stack backtrace:
| [   26.551293][    C0] Tainted: [W]=WARN
[   26.551294][    C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   26.551295][    C0] Call Trace:
[   26.551297][    C0]  <IRQ>
[   26.551297][    C0]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   26.551301][    C0]  print_irq_inversion_bug.part.0.cold (kernel/locking/lockdep.c:4141)
[   26.551303][    C0]  mark_lock_irq (kernel/locking/lockdep.c:4095 kernel/locking/lockdep.c:4174 kernel/locking/lockdep.c:4310)
[   26.551306][    C0]  mark_lock (kernel/locking/lockdep.c:4769)
[   26.551308][    C0]  mark_usage (kernel/locking/lockdep.c:4658)
[   26.551310][    C0]  __lock_acquire (kernel/locking/lockdep.c:5208)
[   26.551312][    C0]  lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   26.551313][    C0]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   26.551320][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.551323][    C0]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   26.551325][    C0]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   26.551331][    C0]  _raw_spin_lock (./include/linux/spinlock_api_smp.h:190 (discriminator 1) kernel/locking/spinlock.c:173 (discriminator 1))
[   26.551333][    C0]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   26.551338][    C0] br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   26.551344][    C0]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   26.551351][    C0]  call_timer_fn (kernel/time/timer.c:1748)
[   26.551353][    C0]  ? detach_if_pending (./include/linux/list.h:1159)
[   26.551354][    C0]  ? debug_object_active_state (lib/debugobjects.c:1122)
[   26.551362][    C0]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   26.551364][    C0]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   26.551366][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.551368][    C0]  __run_timers (kernel/time/timer.c:1799 kernel/time/timer.c:2374)
[   26.551370][    C0]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   26.551377][    C0]  ? __bpf_trace_itimer_expire (./include/trace/events/timer.h:407)
[   26.551379][    C0]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   26.551381][    C0]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   26.551383][    C0]  run_timer_softirq (kernel/time/timer.c:2386 kernel/time/timer.c:2395 kernel/time/timer.c:2403)
[   26.551385][    C0]  ? __run_timers (./include/trace/events/timer.h:138 (discriminator 19))
[   26.551387][    C0]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   26.551389][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.551391][    C0]  handle_softirqs (kernel/softirq.c:645)
[   26.551393][    C0]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   26.551394][    C0]  ? _local_bh_enable (kernel/softirq.c:428 (discriminator 1))
[   26.551396][    C0]  __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
[   26.551397][    C0]  irq_exit_rcu (kernel/softirq.c:784)
[   26.551399][    C0]  sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1062 (discriminator 37) arch/x86/kernel/apic/apic.c:1062 (discriminator 37))
[   26.551400][    C0]  </IRQ>
[   26.551401][    C0]  <TASK>
[   26.551401][    C0]  ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:4427 (discriminator 2))
[   26.551403][    C0]  asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:674)
[   26.551405][    C0] RIP: 0010:pv_native_safe_halt (./arch/x86/include/asm/irqflags.h:48 arch/x86/kernel/paravirt.c:63)
[   26.551406][    C0] Code: 48 8b 3d 94 e2 f5 01 e8 1f 00 00 00 48 2b 05 58 a3 95 00 c3 0f 1f 80 00 00 00 00 f3 0f 1e fa eb 07 0f 00 2d 13 96 11 00 fb f4 <c3> 0f 1f 40 d6 48 83 ec 20 8b 17 49 89 f8 83 e2 fe 41 89 d2 0f 01
All code
========
   0:	48 8b 3d 94 e2 f5 01 	mov    0x1f5e294(%rip),%rdi        # 0x1f5e29b
   7:	e8 1f 00 00 00       	call   0x2b
   c:	48 2b 05 58 a3 95 00 	sub    0x95a358(%rip),%rax        # 0x95a36b
  13:	c3                   	ret
  14:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  1b:	f3 0f 1e fa          	endbr64
  1f:	eb 07                	jmp    0x28
  21:	0f 00 2d 13 96 11 00 	verw   0x119613(%rip)        # 0x11963b
  28:	fb                   	sti
  29:	f4                   	hlt
  2a:*	c3                   	ret		<-- trapping instruction
  2b:	0f 1f 40 d6          	nopl   -0x2a(%rax)
  2f:	48 83 ec 20          	sub    $0x20,%rsp
  33:	8b 17                	mov    (%rdi),%edx
  35:	49 89 f8             	mov    %rdi,%r8
  38:	83 e2 fe             	and    $0xfffffffe,%edx
  3b:	41 89 d2             	mov    %edx,%r10d
  3e:	0f                   	.byte 0xf
  3f:	01                   	.byte 0x1

Code starting with the faulting instruction
===========================================
   0:	c3                   	ret
   1:	0f 1f 40 d6          	nopl   -0x2a(%rax)
   5:	48 83 ec 20          	sub    $0x20,%rsp
   9:	8b 17                	mov    (%rdi),%edx
   b:	49 89 f8             	mov    %rdi,%r8
   e:	83 e2 fe             	and    $0xfffffffe,%edx
  11:	41 89 d2             	mov    %edx,%r10d
  14:	0f                   	.byte 0xf
  15:	01                   	.byte 0x1
[   26.551408][    C0] RSP: 0018:ffffffffa8c07cf8 EFLAGS: 00000296
[   26.551409][    C0] RAX: 00000000000dce4d RBX: ffffffffa8c1c600 RCX: ffffffffa5cf0307
[   26.551410][    C0] RDX: ffffffffa8c1c600 RSI: ffffffffa8a38b01 RDI: ffffffffa848d8e0
[   26.551411][    C0] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
[   26.551412][    C0] R10: 0000000000000000 R11: 0000000000000001 R12: 1ffffffff5180fa2
[   26.551413][    C0] R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000014770
[   26.551414][    C0]  ? cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   26.551417][    C0]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   26.551418][    C0]  default_idle (./arch/x86/include/asm/paravirt.h:62 arch/x86/kernel/process.c:768)
[   26.551420][    C0]  default_idle_call (kernel/sched/idle.c:122)
[   26.551421][    C0]  cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   26.551423][    C0]  ? arch_cpu_idle_exit+0x40/0x40
[   26.551424][    C0]  ? mark_tsc_async_resets (arch/x86/kernel/tsc_sync.c:49)
[   26.551426][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.551428][    C0]  do_idle (kernel/sched/idle.c:355)
[   26.551429][    C0]  cpu_startup_entry (kernel/sched/idle.c:454)
[   26.551431][    C0]  rest_init (init/main.c:727)
[   26.551433][    C0]  ? __cpuidle_text_end (??:?)
[   26.551435][    C0]  ? rest_init (init/main.c:727)
[   26.551437][    C0]  ? acpi_hw_set_mode (drivers/acpi/acpica/hwacpi.c:72 (discriminator 1))
[   26.551440][    C0]  ? cpus_read_unlock (./include/linux/percpu-rwsem.h:125 (discriminator 1) kernel/cpu.c:502 (discriminator 1))
[   26.551442][    C0]  ? acpi_enable (drivers/acpi/acpica/evxfevnt.c:47)
[   26.551445][    C0]  start_kernel (init/main.c:1185)
[   26.551446][    C0]  x86_64_start_reservations (arch/x86/kernel/head64.c:310)
[   26.551448][    C0]  x86_64_start_kernel (arch/x86/kernel/head64.c:291)
[   26.551450][    C0]  common_startup_64 (arch/x86/kernel/head_64.S:418)
| [   63.857490][   T12] softirqs last disabled at (30174): __fib6_clean_all (./include/linux/spinlock.h:353 net/ipv6/ip6_fib.c:2323)
| [   63.857492][   T12] Preemption disabled at:
| [   63.857493][   T12] vprintk_emit (kernel/printk/printk.c:2471)
| [   63.857504][   T12] Tainted: [W]=WARN
[   63.857505][   T12] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   63.857507][   T12] Workqueue: netns cleanup_net
[   63.857513][   T12] Call Trace:
[   63.857515][   T12]  <TASK>
[   63.857516][   T12]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   63.857522][   T12]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   63.857524][   T12]  __might_resched.cold (kernel/sched/core.c:9234)
[   63.857527][   T12]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   63.857531][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   63.857535][   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))
[   63.857538][   T12]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   63.857541][   T12]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   63.857544][   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)
[   63.857546][   T12]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   63.857548][   T12]  put_chars (drivers/char/virtio_console.c:1176)
[   63.857549][   T12]  ? desc_read_finalized_seq (kernel/printk/printk_ringbuffer.c:1934)
[   63.857551][   T12]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   63.857553][   T12]  ? console_prepend_replay (kernel/printk/printk.c:3005)
[   63.857555][   T12]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   63.857558][   T12]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   63.857559][   T12]  ? 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)
[   63.857561][   T12]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   63.857563][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   63.857564][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   63.857566][   T12]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   63.857568][   T12]  console_emit_next_record (kernel/printk/printk.c:3183)
[   63.857570][   T12]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   63.857572][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   63.857574][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   63.857575][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   63.857577][   T12]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   63.857579][   T12]  ? console_flush_one_record (kernel/printk/printk.c:3247)
[   63.857580][   T12]  console_flush_one_record (kernel/printk/printk.c:3268)
[   63.857583][   T12]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   63.857585][   T12]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   63.857587][   T12]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   63.857588][   T12]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   63.857590][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   63.857592][   T12]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   63.857593][   T12]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   63.857594][   T12]  ? __rcu_read_lock (kernel/rcu/tree_plugin.h:391 (discriminator 6) kernel/rcu/tree_plugin.h:414 (discriminator 6))
[   63.857596][   T12]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   63.857598][   T12]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   63.857600][   T12]  vprintk_emit (kernel/printk/printk.c:2479)
[   63.857602][   T12]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   63.857604][   T12]  ? process_one_work (kernel/workqueue.c:3387)
[   63.857607][   T12]  ? kthread (kernel/kthread.c:436)
[   63.857608][   T12]  ? ret_from_fork (arch/x86/kernel/process.c:158)
[   63.857611][   T12]  ? ret_from_fork_asm (arch/x86/entry/entry_64.S:245)
[   63.857613][   T12]  _printk (kernel/printk/printk.c:2504)
[   63.857616][   T12]  ? snapshot_read.cold (user.c:?)
[   63.857619][   T12]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   63.857621][   T12]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   63.857623][   T12]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   63.857625][   T12]  ? netdev_notice (net/core/dev.c:13194)
[   63.857627][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   63.857629][   T12]  ? __up_read (kernel/locking/rwsem.c:1397 (discriminator 1))
[   63.857630][   T12]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:78)
[   63.857633][   T12]  ? down_write_nested (kernel/locking/rwsem.c:1759)
[   63.857634][   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)
[   63.857636][   T12]  netif_set_allmulti.cold (net/core/dev.c:9731 (discriminator 3))
[   63.857639][   T12]  dev_set_allmulti (net/core/dev_api.c:315)
[   63.857642][   T12] del_nbp (net/bridge/br_if.c:253 net/bridge/br_if.c:341) bridge
[   63.857655][   T12] br_dev_delete (net/bridge/br_if.c:387) bridge
[   63.857662][   T12] br_net_exit_rtnl (net/bridge/br.c:414) bridge
[   63.857669][   T12]  ops_undo_list (net/core/net_namespace.c:181 net/core/net_namespace.c:249)
[   63.857671][   T12]  ? rtnl_net_dumpid_one (net/core/net_namespace.c:1098)
[   63.857673][   T12]  ? idr_destroy (lib/radix-tree.c:310 lib/radix-tree.c:674 lib/radix-tree.c:1563)
[   63.857677][   T12]  cleanup_net (net/core/net_namespace.c:706)
[   63.857679][   T12]  ? net_passive_dec (./include/linux/llist.h:241)
[   63.857680][   T12]  ? update_load_avg (kernel/sched/fair.c:5864)
[   63.857684][   T12]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   63.857685][   T12]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   63.857687][   T12]  process_one_work (kernel/workqueue.c:3387)
[   63.857690][   T12]  ? __queue_delayed_work (kernel/workqueue.c:2622)
[   63.857693][   T12]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   63.857695][   T12]  worker_thread (kernel/workqueue.c:3470 kernel/workqueue.c:3551)
[   63.857698][   T12]  ? rescuer_thread (./include/linux/list.h:419 (discriminator 3))
[   63.857699][   T12]  kthread (kernel/kthread.c:436)
[   63.857701][   T12]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   63.857702][   T12]  ? kthread_affine_preferred (kernel/kthread.c:857)
[   63.857704][   T12]  ret_from_fork (arch/x86/kernel/process.c:158)
[   63.857706][   T12]  ? arch_exit_to_user_mode_prepare.isra.0 (arch/x86/entry/vdso/vma.c:80 (discriminator 1))
[   63.857707][   T12]  ? __switch_to (arch/x86/kernel/process_64.c:403 arch/x86/kernel/process_64.c:663)
[   63.857710][   T12]  ? kthread_affine_preferred (kernel/kthread.c:857)


Finger prints:
mark_lock_irq:mark_lock:mark_usage:__lock_acquire:_raw_spin_lock
__irq_exit_rcu:schedule_preempt_disabled:dump_stack_lvl:__kmalloc_noprof:put_chars
__irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print
__alloc_skb:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars
__fib6_clean_all:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars
__irq_exit_rcu:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars