======================================
| [    9.887454][  T188] softirqs last disabled at (42183): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [    9.887456][  T188] Preemption disabled at:
| [    9.887457][  T188] 0x0
| [    9.887467][  T188] Tainted: [W]=WARN
[    9.887468][  T188] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.887470][  T188] Call Trace:
[    9.887471][  T188]  <TASK>
[    9.887473][  T188]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[    9.887480][  T188]  __might_resched.cold (kernel/sched/core.c:9234)
[    9.887484][  T188]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[    9.887489][  T188]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[    9.887494][  T188]  __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))
[    9.887496][  T188]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[    9.887502][  T188]  ? 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)
[    9.887505][  T188]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[    9.887508][  T188]  put_chars (drivers/char/virtio_console.c:1176)
[    9.887511][  T188]  ? __send_to_port (drivers/char/virtio_console.c:654)
[    9.887512][  T188]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[    9.887517][  T188]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[    9.887522][  T188]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[    9.887529][  T188]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[    9.887531][  T188]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    9.887533][  T188]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[    9.887537][  T188]  console_emit_next_record (kernel/printk/printk.c:3183)
[    9.887541][  T188]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[    9.887543][  T188]  ? 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))
[    9.887546][  T188]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    9.887548][  T188]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[    9.887552][  T188]  console_flush_one_record (kernel/printk/printk.c:3268)
[    9.887556][  T188]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[    9.887558][  T188]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[    9.887564][  T188]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[    9.887566][  T188]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[    9.887568][  T188]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    9.887570][  T188]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[    9.887574][  T188]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[    9.887576][  T188]  ? vprintk_emit (kernel/printk/printk.c:2478)
[    9.887579][  T188]  vprintk_emit (kernel/printk/printk.c:2479)
[    9.887583][  T188]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[    9.887586][  T188]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[    9.887590][  T188]  _printk (kernel/printk/printk.c:2504)
[    9.887594][  T188]  ? snapshot_read.cold (user.c:?)
[    9.887597][  T188]  ? 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)
[    9.887599][  T188]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[    9.887603][  T188]  ? 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)
[    9.887606][  T188]  do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4))
[    9.887609][  T188]  ? exit_notify (kernel/exit.c:780)
[    9.887612][  T188]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[    9.887614][  T188]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    9.887618][  T188]  do_group_exit (kernel/exit.c:1151)
[    9.887621][  T188]  __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160)
[    9.887623][  T188]  x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232)
[    9.887625][  T188]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[    9.887629][  T188]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[    9.887632][  T188]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.887634][  T188] RIP: 0033:0x7f3a5933c1b8
[    9.887637][  T188] Code: Unable to access opcode bytes at 0x7f3a5933c18e.

Code starting with the faulting instruction
===========================================
[    9.887638][  T188] RSP: 002b:00007ffc18734028 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
[    9.887640][  T188] RAX: ffffffffffffffda RBX: 00007f3a5946cf88 RCX: 00007f3a5933c1b8
[    9.887641][  T188] RDX: 00007f3a59086fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000
[    9.887642][  T188] RBP: 00007ffc18734080 R08: 0000000000000000 R09: 0000000000008010
[    9.887643][  T188] R10: 00007ffc18733e40 R11: 0000000000000246 R12: 0000000000000001
[    9.887644][  T188] R13: 0000000000000000 R14: 00007f3a5946b680 R15: 00007f3a5946cfa0
| [   11.867649][  T255] softirqs last disabled at (12848): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   11.867651][  T255] Preemption disabled at:
| [   11.867652][  T255] vprintk_emit (kernel/printk/printk.c:2471)
| [   11.867661][  T255] Tainted: [W]=WARN
[   11.867662][  T255] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   11.867664][  T255] Call Trace:
[   11.867665][  T255]  <TASK>
[   11.867667][  T255]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   11.867673][  T255]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   11.867675][  T255]  __might_resched.cold (kernel/sched/core.c:9234)
[   11.867679][  T255]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   11.867684][  T255]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   11.867689][  T255]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   11.867691][  T255]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.867697][  T255]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   11.867699][  T255]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   11.867702][  T255]  put_chars (drivers/char/virtio_console.c:1176)
[   11.867705][  T255]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   11.867709][  T255]  ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928)
[   11.867713][  T255]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   11.867716][  T255]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   11.867718][  T255]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.867719][  T255]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.867723][  T255]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   11.867725][  T255]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   11.867728][  T255]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.867732][  T255]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.867736][  T255]  console_emit_next_record (kernel/printk/printk.c:3183)
[   11.867740][  T255]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   11.867741][  T255]  ? console_flush_one_record (./include/linux/rcupdate.h:314 (discriminator 2) ./include/linux/srcu.h:439 (discriminator 2) kernel/printk/printk.c:291 (discriminator 2) kernel/printk/printk.c:3246 (discriminator 2))
[   11.867744][  T255]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.867747][  T255]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.867751][  T255]  console_flush_one_record (kernel/printk/printk.c:3268)
[   11.867755][  T255]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   11.867756][  T255]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.867762][  T255]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   11.867764][  T255]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   11.867766][  T255]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.867768][  T255]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   11.867772][  T255]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   11.867774][  T255]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   11.867777][  T255]  vprintk_emit (kernel/printk/printk.c:2479)
[   11.867781][  T255]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   11.867783][  T255]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   11.867785][  T255]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   11.867789][  T255]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   11.867792][  T255]  _printk (kernel/printk/printk.c:2504)
[   11.867796][  T255]  ? snapshot_read.cold (user.c:?)
[   11.867800][  T255]  ? br_multicast_flood (??:?) bridge
[   11.867811][  T255]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   11.867812][  T255]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   11.867814][  T255]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   11.867818][  T255] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   11.867828][  T255] br_init_port (net/bridge/br_stp_if.c:39) bridge
[   11.867836][  T255] new_nbp (net/bridge/br_if.c:449) bridge
[   11.867845][  T255] br_add_if (net/bridge/br_if.c:592) bridge
[   11.867851][  T255]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   11.867855][  T255]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   11.867859][  T255]  ? __kernel_text_address (kernel/extable.c:79)
[   11.867862][  T255]  do_set_master (net/core/rtnetlink.c:3071)
[   11.867867][  T255]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   11.867870][  T255]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   11.867873][  T255]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   11.867874][  T255]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   11.867877][  T255]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   11.867880][  T255]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   11.867883][  T255]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   11.867884][  T255]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   11.867887][  T255]  ? kasan_save_stack (mm/kasan/common.c:58)
[   11.867890][  T255]  ? kasan_save_stack (mm/kasan/common.c:57)
[   11.867892][  T255]  ? kasan_save_track (mm/kasan/common.c:78)
[   11.867894][  T255]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.867896][  T255]  ? netlink_seq_next (net/netlink/af_netlink.c:2685)
[   11.867899][  T255]  ? ___sys_sendmsg (net/socket.c:2757)
[   11.867904][  T255]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   11.867906][  T255]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   11.867908][  T255]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.867910][  T255]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   11.867912][  T255]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.867914][  T255]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.867916][  T255]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   11.867920][  T255]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   11.867921][  T255]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   11.867924][  T255]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   11.867927][  T255]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   11.867928][  T255]  ? nla_get_range_signed (lib/nlattr.c:270)
[   11.867933][  T255]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   11.867938][  T255]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   11.867943][  T255]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   11.867945][  T255]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.867950][  T255]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   11.867951][  T255]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   11.867953][  T255]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   11.867955][  T255]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   11.867959][  T255]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   11.867961][  T255]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   11.867964][  T255]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   11.867965][  T255]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.867969][  T255]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   11.867971][  T255]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   11.867979][  T255]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   11.867981][  T255]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   11.867983][  T255]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   11.867989][  T255]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   11.867991][  T255]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   11.867995][  T255]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   11.867998][  T255]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   11.868001][  T255]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   11.868005][  T255]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   11.868008][  T255]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   11.868012][  T255]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   11.868017][  T255]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   11.868020][  T255]  ? copy_msghdr_from_user (net/socket.c:2650)
[   11.868022][  T255]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   11.868023][  T255]  ? move_addr_to_kernel (net/socket.c:258)
[   11.868030][  T255]  ___sys_sendmsg (net/socket.c:2767)
[   11.868033][  T255]  ? copy_msghdr_from_user (net/socket.c:2619)
[   11.868048][  T255]  __sys_sendmsg (net/socket.c:2799)
[   11.868051][  T255]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   11.868057][  T255]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   11.868060][  T255]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   11.868063][  T255]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   11.868066][  T255]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   11.868068][  T255] RIP: 0033:0x7fb05618654e
[   11.868072][  T255] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   11.868074][  T255] RSP: 002b:00007ffd66c914c0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   11.868076][  T255] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007fb05618654e
[   11.868078][  T255] RDX: 0000000000000000 RSI: 00007ffd66c91570 RDI: 0000000000000005
[   11.868079][  T255] RBP: 00007ffd66c914d0 R08: 0000000000000000 R09: 0000000000000000
[   11.868080][  T255] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a915895
[   11.868080][  T255] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007ffd66c91c30
| [   26.316690][  T330] softirqs last disabled at (22540): dev_set_rx_mode (./include/linux/bottom_half.h:20 (discriminator 2) ./include/linux/netdevice.h:5008 (discriminator 2) net/core/dev_addr_lists.c:1392 (discriminator 2))
| [   26.316692][  T330] Preemption disabled at:
| [   26.316693][  T330] vprintk_emit (kernel/printk/printk.c:2471)
| [   26.316702][  T330] Tainted: [W]=WARN
[   26.316703][  T330] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   26.316704][  T330] Call Trace:
[   26.316706][  T330]  <TASK>
[   26.316708][  T330]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   26.316713][  T330]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   26.316716][  T330]  __might_resched.cold (kernel/sched/core.c:9234)
[   26.316720][  T330]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   26.316724][  T330]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   26.316729][  T330]  __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))
[   26.316732][  T330]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   26.316737][  T330]  ? 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)
[   26.316739][  T330]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   26.316743][  T330]  put_chars (drivers/char/virtio_console.c:1176)
[   26.316745][  T330]  ? desc_read_finalized_seq (kernel/printk/printk_ringbuffer.c:1934)
[   26.316747][  T330]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   26.316749][  T330]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   26.316753][  T330]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   26.316757][  T330]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   26.316760][  T330]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   26.316761][  T330]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   26.316766][  T330]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   26.316767][  T330]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   26.316770][  T330]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.316773][  T330]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   26.316777][  T330]  console_emit_next_record (kernel/printk/printk.c:3183)
[   26.316781][  T330]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   26.316783][  T330]  ? 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))
[   26.316786][  T330]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.316788][  T330]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   26.316792][  T330]  console_flush_one_record (kernel/printk/printk.c:3268)
[   26.316796][  T330]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   26.316798][  T330]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   26.316803][  T330]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   26.316806][  T330]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   26.316808][  T330]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.316810][  T330]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   26.316814][  T330]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   26.316815][  T330]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   26.316819][  T330]  vprintk_emit (kernel/printk/printk.c:2479)
[   26.316824][  T330]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   26.316825][  T330]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   26.316827][  T330]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   26.316829][  T330]  ? validate_chain (kernel/locking/lockdep.c:157 kernel/locking/lockdep.c:202 kernel/locking/lockdep.c:3329 kernel/locking/lockdep.c:3924)
[   26.316831][  T330]  ? find_held_lock (kernel/locking/lockdep.c:5360)
[   26.316834][  T330]  _printk (kernel/printk/printk.c:2504)
[   26.316838][  T330]  ? snapshot_read.cold (user.c:?)
[   26.316841][  T330]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   26.316843][  T330]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   26.316845][  T330]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   26.316848][  T330]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   26.316852][  T330]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   26.316854][  T330]  ? netdev_notice (net/core/dev.c:13194)
[   26.316858][  T330]  ? 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)
[   26.316860][  T330]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   26.316863][  T330]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   26.316865][  T330]  ? 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)
[   26.316868][  T330]  __dev_set_promiscuity.cold (net/core/dev.c:9672 (discriminator 3))
[   26.316873][  T330]  __dev_change_flags (net/core/dev.c:9821)
[   26.316876][  T330]  ? netif_set_allmulti (./include/net/netdev_lock.h:30 (discriminator 1))
[   26.316878][  T330]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   26.316881][  T330]  ? __kernel_text_address (kernel/extable.c:79)
[   26.316882][  T330]  ? write_profile (profile.c:?)
[   26.316885][  T330]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   26.316890][  T330]  netif_change_flags (net/core/dev.c:9877)
[   26.316893][  T330]  do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1))
[   26.316898][  T330]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   26.316900][  T330]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   26.316901][  T330]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   26.316903][  T330]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   26.316906][  T330]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   26.316909][  T330]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   26.316911][  T330]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   26.316913][  T330]  ? kasan_save_stack (mm/kasan/common.c:58)
[   26.316916][  T330]  ? kasan_save_stack (mm/kasan/common.c:57)
[   26.316918][  T330]  ? kasan_save_track (mm/kasan/common.c:78)
[   26.316921][  T330]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   26.316922][  T330]  ? netlink_seq_next (net/netlink/af_netlink.c:2685)
[   26.316925][  T330]  ? ___sys_sendmsg (net/socket.c:2757)
[   26.316930][  T330]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   26.316932][  T330]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   26.316934][  T330]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.316937][  T330]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   26.316938][  T330]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.316940][  T330]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.316942][  T330]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   26.316945][  T330]  ? __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)
[   26.316948][  T330]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   26.316950][  T330]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   26.316953][  T330]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   26.316958][  T330]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   26.316964][  T330]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   26.316969][  T330]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   26.316971][  T330]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   26.316975][  T330]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   26.316977][  T330]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   26.316979][  T330]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   26.316981][  T330]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   26.316984][  T330]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   26.316986][  T330]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   26.316989][  T330]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   26.316991][  T330]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   26.316995][  T330]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   26.316997][  T330]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   26.317000][  T330]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   26.317002][  T330]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   26.317005][  T330]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   26.317011][  T330]  ? 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))
[   26.317013][  T330]  ? 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))
[   26.317017][  T330]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   26.317020][  T330]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   26.317023][  T330]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   26.317027][  T330]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   26.317031][  T330]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   26.317035][  T330]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   26.317040][  T330]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   26.317042][  T330]  ? copy_msghdr_from_user (net/socket.c:2650)
[   26.317044][  T330]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   26.317051][  T330]  ? move_addr_to_kernel (net/socket.c:258)
[   26.317058][  T330]  ___sys_sendmsg (net/socket.c:2767)
[   26.317061][  T330]  ? copy_msghdr_from_user (net/socket.c:2619)
[   26.317076][  T330]  __sys_sendmsg (net/socket.c:2799)
[   26.317079][  T330]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   26.317085][  T330]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.317088][  T330]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   26.317090][  T330]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   26.317094][  T330]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   26.317096][  T330] RIP: 0033:0x7ffa4d85e54e
[   26.317099][  T330] 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
[   26.317101][  T330] RSP: 002b:00007fff3731d4e0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   26.317104][  T330] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007ffa4d85e54e
[   26.317105][  T330] RDX: 0000000000000000 RSI: 00007fff3731d590 RDI: 0000000000000005
[   26.317106][  T330] RBP: 00007fff3731d4f0 R08: 0000000000000000 R09: 0000000000000000
[   26.317107][  T330] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a9158a3
[   26.317108][  T330] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fff3731dc50
| [   27.500381][    C0] softirqs last disabled at (717593): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   27.500382][    C0] Preemption disabled at:
| [   27.500383][    C0] schedule_preempt_disabled (kernel/sched/core.c:7420)
| [   27.500393][    C0] Tainted: [W]=WARN
[   27.500394][    C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   27.500396][    C0] Call Trace:
[   27.500398][    C0]  <IRQ>
[   27.500400][    C0]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   27.500405][    C0]  ? schedule_preempt_disabled (kernel/sched/core.c:7420)
[   27.500407][    C0]  __might_resched.cold (kernel/sched/core.c:9234)
[   27.500410][    C0]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   27.500413][    C0]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   27.500416][    C0]  ? __asan_memcpy (mm/kasan/shadow.c:106 (discriminator 1))
[   27.500420][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.500423][    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))
[   27.500427][    C0]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   27.500429][    C0]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   27.500433][    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)
[   27.500434][    C0]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   27.500436][    C0]  put_chars (drivers/char/virtio_console.c:1176)
[   27.500438][    C0]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   27.500440][    C0]  ? console_prepend_replay (kernel/printk/printk.c:3005)
[   27.500444][    C0]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   27.500447][    C0]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   27.500448][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.500450][    C0]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   27.500452][    C0]  console_emit_next_record (kernel/printk/printk.c:3183)
[   27.500455][    C0]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   27.500457][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.500458][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.500460][    C0]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   27.500462][    C0]  ? console_flush_one_record (kernel/printk/printk.c:3247)
[   27.500463][    C0]  console_flush_one_record (kernel/printk/printk.c:3268)
[   27.500466][    C0]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   27.500468][    C0]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   27.500470][    C0]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   27.500472][    C0]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   27.500473][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.500475][    C0]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   27.500476][    C0]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   27.500478][    C0]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   27.500480][    C0]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   27.500482][    C0]  vprintk_emit (kernel/printk/printk.c:2479)
[   27.500484][    C0]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   27.500486][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.500488][    C0]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   27.500489][    C0]  ? x86_64_start_kernel (arch/x86/kernel/head64.c:264)
[   27.500494][    C0]  _printk (kernel/printk/printk.c:2504)
[   27.500497][    C0]  ? snapshot_read.cold (user.c:?)
[   27.500499][    C0]  ? arch_stack_walk (arch/x86/kernel/stacktrace.c:25)
[   27.500503][    C0]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   27.500505][    C0]  ? nbcon_cpu_emergency_enter (./include/linux/instrumented.h:112 ./include/linux/atomic/atomic-instrumented.h:435 kernel/printk/nbcon.c:1723)
[   27.500507][    C0]  print_irq_inversion_bug.part.0 (kernel/locking/lockdep.c:4097 (discriminator 1))
[   27.500509][    C0]  mark_lock_irq (kernel/locking/lockdep.c:4095 kernel/locking/lockdep.c:4174 kernel/locking/lockdep.c:4310)
[   27.500512][    C0]  mark_lock (kernel/locking/lockdep.c:4769)
[   27.500514][    C0]  mark_usage (kernel/locking/lockdep.c:4658)
[   27.500516][    C0]  __lock_acquire (kernel/locking/lockdep.c:5208)
[   27.500518][    C0]  lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   27.500519][    C0]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   27.500532][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.500534][    C0]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   27.500535][    C0]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   27.500542][    C0]  _raw_spin_lock (./include/linux/spinlock_api_smp.h:190 (discriminator 1) kernel/locking/spinlock.c:173 (discriminator 1))
[   27.500543][    C0]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   27.500549][    C0] br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   27.500555][    C0]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   27.500561][    C0]  call_timer_fn (kernel/time/timer.c:1748)
[   27.500565][    C0]  ? detach_if_pending (./include/linux/list.h:1159)
[   27.500566][    C0]  ? debug_object_active_state (lib/debugobjects.c:1122)
[   27.500570][    C0]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   27.500572][    C0]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   27.500573][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.500576][    C0]  __run_timers (kernel/time/timer.c:1799 kernel/time/timer.c:2374)
[   27.500577][    C0]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   27.500584][    C0]  ? __bpf_trace_itimer_expire (./include/trace/events/timer.h:407)
[   27.500586][    C0]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   27.500588][    C0]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   27.500591][    C0]  run_timer_softirq (kernel/time/timer.c:2386 kernel/time/timer.c:2395 kernel/time/timer.c:2403)
[   27.500593][    C0]  ? __run_timers (./include/trace/events/timer.h:138 (discriminator 19))
[   27.500594][    C0]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   27.500597][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.500599][    C0]  handle_softirqs (kernel/softirq.c:645)
[   27.500601][    C0]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   27.500602][    C0]  ? _local_bh_enable (kernel/softirq.c:428 (discriminator 1))
[   27.500604][    C0]  __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
[   27.500606][    C0]  irq_exit_rcu (kernel/softirq.c:784)
[   27.500607][    C0]  sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1062 (discriminator 37) arch/x86/kernel/apic/apic.c:1062 (discriminator 37))
[   27.500610][    C0]  </IRQ>
[   27.500611][    C0]  <TASK>
[   27.500611][    C0]  ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:4427 (discriminator 2))
[   27.500613][    C0]  asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:674)
[   27.500615][    C0] RIP: 0010:pv_native_safe_halt (./arch/x86/include/asm/irqflags.h:48 arch/x86/kernel/paravirt.c:63)
[   27.500618][    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
[   27.500620][    C0] RSP: 0018:ffffffff90207cf8 EFLAGS: 00000296
[   27.500623][    C0] RAX: 00000000000af317 RBX: ffffffff9021c600 RCX: ffffffff8d2f0307
[   27.500625][    C0] RDX: ffffffff9021c600 RSI: ffffffff90038b01 RDI: ffffffff8fa8d8e0
[   27.500625][    C0] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
[   27.500626][    C0] R10: 0000000000000000 R11: 0000000000000001 R12: 1ffffffff2040fa2
[   27.500627][    C0] R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000014770
[   27.500629][    C0]  ? cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   27.500632][    C0]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   27.500633][    C0]  default_idle (./arch/x86/include/asm/paravirt.h:62 arch/x86/kernel/process.c:768)
[   27.500635][    C0]  default_idle_call (kernel/sched/idle.c:122)
[   27.500637][    C0]  cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   27.500638][    C0]  ? arch_cpu_idle_exit+0x40/0x40
[   27.500640][    C0]  ? mark_tsc_async_resets (arch/x86/kernel/tsc_sync.c:49)
[   27.500642][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.500644][    C0]  do_idle (kernel/sched/idle.c:355)
[   27.500646][    C0]  cpu_startup_entry (kernel/sched/idle.c:454)
[   27.500647][    C0]  rest_init (init/main.c:727)
[   27.500649][    C0]  ? __cpuidle_text_end (??:?)
[   27.500652][    C0]  ? rest_init (init/main.c:727)
[   27.500654][    C0]  ? acpi_hw_set_mode (drivers/acpi/acpica/hwacpi.c:72 (discriminator 1))
[   27.500657][    C0]  ? cpus_read_unlock (./include/linux/percpu-rwsem.h:125 (discriminator 1) kernel/cpu.c:502 (discriminator 1))
[   27.500660][    C0]  ? acpi_enable (drivers/acpi/acpica/evxfevnt.c:47)
[   27.500663][    C0]  start_kernel (init/main.c:1185)
[   27.500665][    C0]  x86_64_start_reservations (arch/x86/kernel/head64.c:310)
[   27.500666][    C0]  x86_64_start_kernel (arch/x86/kernel/head64.c:291)
[   27.500668][    C0]  common_startup_64 (arch/x86/kernel/head_64.S:418)
| [   27.566203][    C0]
| [   27.566278][    C0]
| [   27.566278][    C0] stack backtrace:
| [   27.566523][    C0] Tainted: [W]=WARN
[   27.566524][    C0] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   27.566526][    C0] Call Trace:
[   27.566527][    C0]  <IRQ>
[   27.566528][    C0]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   27.566533][    C0]  print_irq_inversion_bug.part.0.cold (kernel/locking/lockdep.c:4141)
[   27.566535][    C0]  mark_lock_irq (kernel/locking/lockdep.c:4095 kernel/locking/lockdep.c:4174 kernel/locking/lockdep.c:4310)
[   27.566538][    C0]  mark_lock (kernel/locking/lockdep.c:4769)
[   27.566540][    C0]  mark_usage (kernel/locking/lockdep.c:4658)
[   27.566542][    C0]  __lock_acquire (kernel/locking/lockdep.c:5208)
[   27.566544][    C0]  lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   27.566546][    C0]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   27.566553][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.566556][    C0]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   27.566558][    C0]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   27.566564][    C0]  _raw_spin_lock (./include/linux/spinlock_api_smp.h:190 (discriminator 1) kernel/locking/spinlock.c:173 (discriminator 1))
[   27.566566][    C0]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   27.566571][    C0] br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   27.566578][    C0]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   27.566584][    C0]  call_timer_fn (kernel/time/timer.c:1748)
[   27.566586][    C0]  ? detach_if_pending (./include/linux/list.h:1159)
[   27.566588][    C0]  ? debug_object_active_state (lib/debugobjects.c:1122)
[   27.566591][    C0]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   27.566593][    C0]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   27.566595][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.566597][    C0]  __run_timers (kernel/time/timer.c:1799 kernel/time/timer.c:2374)
[   27.566599][    C0]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   27.566606][    C0]  ? __bpf_trace_itimer_expire (./include/trace/events/timer.h:407)
[   27.566607][    C0]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   27.566610][    C0]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   27.566612][    C0]  run_timer_softirq (kernel/time/timer.c:2386 kernel/time/timer.c:2395 kernel/time/timer.c:2403)
[   27.566614][    C0]  ? __run_timers (./include/trace/events/timer.h:138 (discriminator 19))
[   27.566616][    C0]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   27.566619][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.566620][    C0]  handle_softirqs (kernel/softirq.c:645)
[   27.566622][    C0]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   27.566624][    C0]  ? _local_bh_enable (kernel/softirq.c:428 (discriminator 1))
[   27.566626][    C0]  __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
[   27.566627][    C0]  irq_exit_rcu (kernel/softirq.c:784)
[   27.566629][    C0]  sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1062 (discriminator 37) arch/x86/kernel/apic/apic.c:1062 (discriminator 37))
[   27.566630][    C0]  </IRQ>
[   27.566631][    C0]  <TASK>
[   27.566631][    C0]  ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:4427 (discriminator 2))
[   27.566633][    C0]  asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:674)
[   27.566635][    C0] RIP: 0010:pv_native_safe_halt (./arch/x86/include/asm/irqflags.h:48 arch/x86/kernel/paravirt.c:63)
[   27.566637][    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
[   27.566638][    C0] RSP: 0018:ffffffff90207cf8 EFLAGS: 00000296
[   27.566640][    C0] RAX: 00000000000af317 RBX: ffffffff9021c600 RCX: ffffffff8d2f0307
[   27.566641][    C0] RDX: ffffffff9021c600 RSI: ffffffff90038b01 RDI: ffffffff8fa8d8e0
[   27.566642][    C0] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
[   27.566643][    C0] R10: 0000000000000000 R11: 0000000000000001 R12: 1ffffffff2040fa2
[   27.566644][    C0] R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000014770
[   27.566645][    C0]  ? cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   27.566647][    C0]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   27.566649][    C0]  default_idle (./arch/x86/include/asm/paravirt.h:62 arch/x86/kernel/process.c:768)
[   27.566651][    C0]  default_idle_call (kernel/sched/idle.c:122)
[   27.566652][    C0]  cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   27.566654][    C0]  ? arch_cpu_idle_exit+0x40/0x40
[   27.566655][    C0]  ? mark_tsc_async_resets (arch/x86/kernel/tsc_sync.c:49)
[   27.566658][    C0]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   27.566660][    C0]  do_idle (kernel/sched/idle.c:355)
[   27.566661][    C0]  cpu_startup_entry (kernel/sched/idle.c:454)
[   27.566663][    C0]  rest_init (init/main.c:727)
[   27.566664][    C0]  ? __cpuidle_text_end (??:?)
[   27.566667][    C0]  ? rest_init (init/main.c:727)
[   27.566669][    C0]  ? acpi_hw_set_mode (drivers/acpi/acpica/hwacpi.c:72 (discriminator 1))
[   27.566673][    C0]  ? cpus_read_unlock (./include/linux/percpu-rwsem.h:125 (discriminator 1) kernel/cpu.c:502 (discriminator 1))
[   27.566675][    C0]  ? acpi_enable (drivers/acpi/acpica/evxfevnt.c:47)
[   27.566678][    C0]  start_kernel (init/main.c:1185)
[   27.566679][    C0]  x86_64_start_reservations (arch/x86/kernel/head64.c:310)
[   27.566681][    C0]  x86_64_start_kernel (arch/x86/kernel/head64.c:291)
[   27.566683][    C0]  common_startup_64 (arch/x86/kernel/head_64.S:418)
| [   28.948657][  T353] softirqs last disabled at (0): 0x0
| [   28.948658][  T353] Preemption disabled at:
| [   28.948659][  T353] vprintk_emit (kernel/printk/printk.c:2471)
| [   28.948670][  T353] Tainted: [W]=WARN
[   28.948671][  T353] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   28.948673][  T353] Call Trace:
[   28.948674][  T353]  <TASK>
[   28.948676][  T353]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   28.948681][  T353]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   28.948683][  T353]  __might_resched.cold (kernel/sched/core.c:9234)
[   28.948687][  T353]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   28.948690][  T353]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.948694][  T353]  __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))
[   28.948698][  T353]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   28.948700][  T353]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   28.948704][  T353]  ? 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)
[   28.948706][  T353]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   28.948708][  T353]  put_chars (drivers/char/virtio_console.c:1176)
[   28.948710][  T353]  ? desc_read_finalized_seq (kernel/printk/printk_ringbuffer.c:1934)
[   28.948711][  T353]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   28.948713][  T353]  ? console_prepend_replay (kernel/printk/printk.c:3005)
[   28.948716][  T353]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   28.948719][  T353]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   28.948720][  T353]  ? 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)
[   28.948722][  T353]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   28.948723][  T353]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.948725][  T353]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.948727][  T353]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   28.948729][  T353]  console_emit_next_record (kernel/printk/printk.c:3183)
[   28.948732][  T353]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   28.948734][  T353]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.948735][  T353]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.948737][  T353]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.948738][  T353]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   28.948740][  T353]  ? console_flush_one_record (kernel/printk/printk.c:3247)
[   28.948742][  T353]  console_flush_one_record (kernel/printk/printk.c:3268)
[   28.948744][  T353]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   28.948747][  T353]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   28.948749][  T353]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   28.948751][  T353]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   28.948752][  T353]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.948754][  T353]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   28.948755][  T353]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   28.948757][  T353]  ? __rcu_read_lock (kernel/rcu/tree_plugin.h:391 (discriminator 6) kernel/rcu/tree_plugin.h:414 (discriminator 6))
[   28.948759][  T353]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   28.948761][  T353]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   28.948763][  T353]  vprintk_emit (kernel/printk/printk.c:2479)
[   28.948765][  T353]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   28.948767][  T353]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.948769][  T353]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   28.948770][  T353]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.948772][  T353]  _printk (kernel/printk/printk.c:2504)
[   28.948775][  T353]  ? snapshot_read.cold (user.c:?)
[   28.948777][  T353]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.948779][  T353]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   28.948780][  T353]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.948782][  T353]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   28.948785][  T353]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   28.948787][  T353]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   28.948789][  T353]  ? netdev_notice (net/core/dev.c:13194)
[   28.948790][  T353]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.948792][  T353]  ? 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)
[   28.948794][  T353]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   28.948795][  T353]  ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   28.948798][  T353]  ? 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)
[   28.948801][  T353]  __dev_set_promiscuity.cold (net/core/dev.c:9672 (discriminator 3))
[   28.948804][  T353]  __dev_change_flags (net/core/dev.c:9821)
[   28.948808][  T353]  ? netif_set_allmulti (./include/net/netdev_lock.h:30 (discriminator 1))
[   28.948810][  T353]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   28.948813][  T353]  ? __kernel_text_address (kernel/extable.c:79)
[   28.948814][  T353]  ? write_profile (profile.c:?)
[   28.948817][  T353]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   28.948820][  T353]  netif_change_flags (net/core/dev.c:9877)
[   28.948822][  T353]  do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1))
[   28.948826][  T353]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   28.948827][  T353]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   28.948828][  T353]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.948830][  T353]  ? stack_depot_save_flags (lib/stackdepot.c:609 lib/stackdepot.c:676)
[   28.948834][  T353]  ? kasan_save_stack (mm/kasan/common.c:58)
[   28.948837][  T353]  ? kasan_save_stack (mm/kasan/common.c:57)
[   28.948838][  T353]  ? kasan_save_track (mm/kasan/common.c:78)
[   28.948840][  T353]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   28.948841][  T353]  ? __kmalloc_cache_noprof (./include/linux/kasan.h:263 mm/slub.c:5563)
[   28.948843][  T353]  ? rtnl_newlink (./include/linux/slab.h:991 (discriminator 1) net/core/rtnetlink.c:4113 (discriminator 1))
[   28.948844][  T353]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   28.948845][  T353]  ? netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   28.948848][  T353]  ? netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   28.948849][  T353]  ? netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   28.948850][  T353]  ? ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   28.948853][  T353]  ? ___sys_sendmsg (net/socket.c:2767)
[   28.948854][  T353]  ? __sys_sendmsg (net/socket.c:2799)
[   28.948856][  T353]  ? do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   28.948859][  T353]  ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   28.948860][  T353]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.948862][  T353]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   28.948864][  T353]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.948865][  T353]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.948867][  T353]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   28.948869][  T353]  ? __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)
[   28.948871][  T353]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   28.948873][  T353]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   28.948874][  T353]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   28.948876][  T353]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   28.948878][  T353]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   28.948880][  T353]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.948882][  T353]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   28.948883][  T353]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   28.948885][  T353]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.948887][  T353]  ? is_bpf_text_address (./include/linux/rcupdate.h:850 kernel/bpf/core.c:749)
[   28.948890][  T353]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   28.948892][  T353]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   28.948893][  T353]  ? __kernel_text_address (kernel/extable.c:79)
[   28.948894][  T353]  ? write_profile (profile.c:?)
[   28.948896][  T353]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   28.948897][  T353]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.948899][  T353]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.948900][  T353]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   28.948904][  T353]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   28.948905][  T353]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.948907][  T353]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   28.948908][  T353]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   28.948910][  T353]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   28.948912][  T353]  ? filter_irq_stacks (kernel/stacktrace.c:402)
[   28.948913][  T353]  ? stack_depot_save_flags (lib/stackdepot.c:609 lib/stackdepot.c:676)
[   28.948916][  T353]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   28.948917][  T353]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   28.948918][  T353]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   28.948920][  T353]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   28.948921][  T353]  ? __netlink_lookup (./include/linux/rcupdate.h:850 ./include/linux/rhashtable.h:709 net/netlink/af_netlink.c:499)
[   28.948924][  T353]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.948925][  T353]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   28.948927][  T353]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   28.948929][  T353]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   28.948931][  T353]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.948933][  T353]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.948934][  T353]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   28.948936][  T353]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   28.948938][  T353]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   28.948940][  T353]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.948942][  T353]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   28.948944][  T353]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   28.948945][  T353]  ? copy_msghdr_from_user (net/socket.c:2650)
[   28.948947][  T353]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   28.948949][  T353]  ? move_addr_to_kernel (net/socket.c:258)
[   28.948950][  T353]  ? filter_irq_stacks (kernel/stacktrace.c:402)
[   28.948953][  T353]  ___sys_sendmsg (net/socket.c:2767)
[   28.948954][  T353]  ? copy_msghdr_from_user (net/socket.c:2619)
[   28.948960][  T353]  __sys_sendmsg (net/socket.c:2799)
[   28.948961][  T353]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   28.948964][  T353]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   28.948966][  T353]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   28.948968][  T353]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   28.948970][  T353]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   28.948971][  T353] RIP: 0033:0x7f06028f454e
[   28.948973][  T353] 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
[   28.948975][  T353] RSP: 002b:00007ffdc8cc39a0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   28.948979][  T353] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007f06028f454e
[   28.948981][  T353] RDX: 0000000000000000 RSI: 00007ffdc8cc3a50 RDI: 0000000000000005
[   28.948982][  T353] RBP: 00007ffdc8cc39b0 R08: 0000000000000000 R09: 0000000000000000
[   28.948982][  T353] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a9158a6


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
dev_set_rx_mode:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars
vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print
__alloc_skb:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars