======================================
| [    9.679918][  T192] softirqs last disabled at (36788): netlink_release (./include/net/sock.h:2138 net/netlink/af_netlink.c:727)
| [    9.679920][  T192] Preemption disabled at:
| [    9.679921][  T192] 0x0
| [    9.679931][  T192] Tainted: [W]=WARN
[    9.679932][  T192] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    9.679933][  T192] Call Trace:
[    9.679935][  T192]  <TASK>
[    9.679936][  T192]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[    9.679943][  T192]  __might_resched.cold (kernel/sched/core.c:9234)
[    9.679947][  T192]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[    9.679951][  T192]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[    9.679959][  T192]  __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))
[    9.679961][  T192]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[    9.679967][  T192]  ? 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)
[    9.679969][  T192]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[    9.679973][  T192]  put_chars (drivers/char/virtio_console.c:1176)
[    9.679977][  T192]  ? __send_to_port (drivers/char/virtio_console.c:654)
[    9.679978][  T192]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[    9.679983][  T192]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[    9.679989][  T192]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[    9.679995][  T192]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[    9.679997][  T192]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    9.680000][  T192]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[    9.680004][  T192]  console_emit_next_record (kernel/printk/printk.c:3183)
[    9.680008][  T192]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[    9.680010][  T192]  ? 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))
[    9.680013][  T192]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    9.680016][  T192]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[    9.680020][  T192]  console_flush_one_record (kernel/printk/printk.c:3268)
[    9.680024][  T192]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[    9.680026][  T192]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[    9.680031][  T192]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[    9.680034][  T192]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[    9.680036][  T192]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    9.680039][  T192]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[    9.680042][  T192]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[    9.680044][  T192]  ? vprintk_emit (kernel/printk/printk.c:2478)
[    9.680048][  T192]  vprintk_emit (kernel/printk/printk.c:2479)
[    9.680052][  T192]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[    9.680055][  T192]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[    9.680059][  T192]  _printk (kernel/printk/printk.c:2504)
[    9.680063][  T192]  ? snapshot_read.cold (user.c:?)
[    9.680066][  T192]  ? 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)
[    9.680068][  T192]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[    9.680072][  T192]  ? 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)
[    9.680075][  T192]  do_exit.cold (kernel/exit.c:889 (discriminator 4) kernel/exit.c:1043 (discriminator 4))
[    9.680079][  T192]  ? exit_notify (kernel/exit.c:780)
[    9.680081][  T192]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[    9.680083][  T192]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[    9.680088][  T192]  do_group_exit (kernel/exit.c:1151)
[    9.680091][  T192]  __x64_sys_exit_group (kernel/exit.c:1162 kernel/exit.c:1160 kernel/exit.c:1160)
[    9.680092][  T192]  x64_sys_call (./arch/x86/include/generated/asm/syscalls_64.h:232)
[    9.680095][  T192]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[    9.680098][  T192]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[    9.680101][  T192]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[    9.680103][  T192] RIP: 0033:0x7f7a079991b8
[    9.680105][  T192] Code: Unable to access opcode bytes at 0x7f7a0799918e.

Code starting with the faulting instruction
===========================================
[    9.680106][  T192] RSP: 002b:00007ffdd078e8d8 EFLAGS: 00000246 ORIG_RAX: 00000000000000e7
[    9.680109][  T192] RAX: ffffffffffffffda RBX: 00007f7a07ac9f88 RCX: 00007f7a079991b8
[    9.680110][  T192] RDX: 00007f7a076e3fc8 RSI: fffffffffffffeb8 RDI: 0000000000000000
[    9.680111][  T192] RBP: 00007ffdd078e930 R08: 0000000000000000 R09: 0000000000008010
[    9.680112][  T192] R10: 00007ffdd078e6f0 R11: 0000000000000246 R12: 0000000000000001
[    9.680113][  T192] R13: 0000000000000000 R14: 00007f7a07ac8680 R15: 00007f7a07ac9fa0
| [   10.897963][  T260] softirqs last disabled at (15392): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   10.897966][  T260] Preemption disabled at:
| [   10.897966][  T260] vprintk_emit (kernel/printk/printk.c:2471)
| [   10.897977][  T260] Tainted: [W]=WARN
[   10.897978][  T260] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.897980][  T260] Call Trace:
[   10.897981][  T260]  <TASK>
[   10.897983][  T260]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   10.897989][  T260]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   10.897991][  T260]  __might_resched.cold (kernel/sched/core.c:9234)
[   10.897996][  T260]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   10.898000][  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)
[   10.898005][  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))
[   10.898007][  T260]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.898013][  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)
[   10.898015][  T260]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.898019][  T260]  put_chars (drivers/char/virtio_console.c:1176)
[   10.898022][  T260]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   10.898026][  T260]  ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928)
[   10.898029][  T260]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   10.898032][  T260]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   10.898034][  T260]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.898035][  T260]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.898039][  T260]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   10.898041][  T260]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   10.898044][  T260]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.898049][  T260]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.898052][  T260]  console_emit_next_record (kernel/printk/printk.c:3183)
[   10.898056][  T260]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   10.898058][  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))
[   10.898061][  T260]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.898063][  T260]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.898067][  T260]  console_flush_one_record (kernel/printk/printk.c:3268)
[   10.898071][  T260]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   10.898073][  T260]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.898078][  T260]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   10.898081][  T260]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   10.898083][  T260]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.898085][  T260]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   10.898088][  T260]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   10.898090][  T260]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   10.898093][  T260]  vprintk_emit (kernel/printk/printk.c:2479)
[   10.898097][  T260]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   10.898100][  T260]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   10.898101][  T260]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   10.898106][  T260]  ? mark_held_locks (kernel/locking/lockdep.c:4341)
[   10.898109][  T260]  _printk (kernel/printk/printk.c:2504)
[   10.898113][  T260]  ? snapshot_read.cold (user.c:?)
[   10.898117][  T260]  ? br_multicast_flood (??:?) bridge
[   10.898129][  T260]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   10.898131][  T260]  ? rtnl_newlink (net/core/rtnetlink.c:4215)
[   10.898132][  T260]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   10.898136][  T260] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   10.898146][  T260] br_init_port (net/bridge/br_stp_if.c:39) bridge
[   10.898154][  T260] new_nbp (net/bridge/br_if.c:449) bridge
[   10.898163][  T260] br_add_if (net/bridge/br_if.c:592) bridge
[   10.898170][  T260]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   10.898174][  T260]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   10.898177][  T260]  ? __kernel_text_address (kernel/extable.c:79)
[   10.898181][  T260]  do_set_master (net/core/rtnetlink.c:3071)
[   10.898186][  T260]  do_setlink.isra.0 (net/core/rtnetlink.c:3273 (discriminator 1))
[   10.898189][  T260]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   10.898192][  T260]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   10.898193][  T260]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:388 kernel/rcu/update.c:380)
[   10.898196][  T260]  ? stack_depot_save_flags (lib/stackdepot.c:609 (discriminator 2) lib/stackdepot.c:676 (discriminator 2))
[   10.898199][  T260]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   10.898202][  T260]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   10.898204][  T260]  ? validate_chain (kernel/locking/lockdep.c:3817 (discriminator 2) kernel/locking/lockdep.c:3837 (discriminator 2) kernel/locking/lockdep.c:3892 (discriminator 2))
[   10.898206][  T260]  ? kasan_save_stack (mm/kasan/common.c:58)
[   10.898209][  T260]  ? kasan_save_stack (mm/kasan/common.c:57)
[   10.898211][  T260]  ? kasan_save_track (mm/kasan/common.c:78)
[   10.898213][  T260]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.898215][  T260]  ? netlink_seq_next (net/netlink/af_netlink.c:2685)
[   10.898218][  T260]  ? ___sys_sendmsg (net/socket.c:2757)
[   10.898223][  T260]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   10.898225][  T260]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   10.898227][  T260]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.898229][  T260]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.898231][  T260]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.898233][  T260]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.898235][  T260]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   10.898238][  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)
[   10.898240][  T260]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   10.898242][  T260]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   10.898245][  T260]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   10.898247][  T260]  ? nla_get_range_signed (lib/nlattr.c:270)
[   10.898252][  T260]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   10.898257][  T260]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   10.898262][  T260]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   10.898264][  T260]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.898269][  T260]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   10.898271][  T260]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   10.898273][  T260]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   10.898274][  T260]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   10.898278][  T260]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   10.898280][  T260]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   10.898283][  T260]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   10.898284][  T260]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.898289][  T260]  ? lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   10.898290][  T260]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   10.898294][  T260]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   10.898296][  T260]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   10.898299][  T260]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   10.898305][  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))
[   10.898306][  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))
[   10.898310][  T260]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   10.898314][  T260]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   10.898317][  T260]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   10.898321][  T260]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   10.898324][  T260]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   10.898328][  T260]  ? __might_fault (mm/memory.c:7482 (discriminator 5))
[   10.898333][  T260]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   10.898336][  T260]  ? copy_msghdr_from_user (net/socket.c:2650)
[   10.898338][  T260]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   10.898339][  T260]  ? move_addr_to_kernel (net/socket.c:258)
[   10.898347][  T260]  ___sys_sendmsg (net/socket.c:2767)
[   10.898350][  T260]  ? copy_msghdr_from_user (net/socket.c:2619)
[   10.898365][  T260]  __sys_sendmsg (net/socket.c:2799)
[   10.898368][  T260]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   10.898374][  T260]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.898378][  T260]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   10.898380][  T260]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   10.898383][  T260]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   10.898386][  T260] RIP: 0033:0x7f22794ba54e
[   10.898389][  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
[   10.898391][  T260] RSP: 002b:00007fffef80dab0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   10.898393][  T260] RAX: ffffffffffffffda RBX: 0000000000000004 RCX: 00007f22794ba54e
[   10.898395][  T260] RDX: 0000000000000000 RSI: 00007fffef80db60 RDI: 0000000000000005
[   10.898396][  T260] RBP: 00007fffef80dac0 R08: 0000000000000000 R09: 0000000000000000
[   10.898397][  T260] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a910dd5
[   10.898397][  T260] R13: 00000000004a1620 R14: 0000000000000000 R15: 00007fffef80e220
| [   26.481092][    C3] softirqs last disabled at (998199): __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
| [   26.481095][    C3] Preemption disabled at:
| [   26.481095][    C3] 0x0
| [   26.481108][    C3] Tainted: [W]=WARN
[   26.481109][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   26.481111][    C3] Call Trace:
[   26.481113][    C3]  <IRQ>
[   26.481115][    C3]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   26.481122][    C3]  __might_resched.cold (kernel/sched/core.c:9234)
[   26.481126][    C3]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   26.481131][    C3]  ? __asan_memcpy (mm/kasan/shadow.c:106 (discriminator 1))
[   26.481134][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.481139][    C3]  __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))
[   26.481143][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   26.481146][    C3]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   26.481151][    C3]  ? 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)
[   26.481153][    C3]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   26.481156][    C3]  put_chars (drivers/char/virtio_console.c:1176)
[   26.481159][    C3]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   26.481161][    C3]  ? console_prepend_replay (kernel/printk/printk.c:3005)
[   26.481166][    C3]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   26.481171][    C3]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   26.481173][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.481176][    C3]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   26.481179][    C3]  console_emit_next_record (kernel/printk/printk.c:3183)
[   26.481182][    C3]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   26.481185][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.481188][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.481190][    C3]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   26.481193][    C3]  ? console_flush_one_record (kernel/printk/printk.c:3247)
[   26.481195][    C3]  console_flush_one_record (kernel/printk/printk.c:3268)
[   26.481198][    C3]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   26.481202][    C3]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   26.481205][    C3]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   26.481207][    C3]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   26.481209][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.481212][    C3]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   26.481214][    C3]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   26.481217][    C3]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   26.481219][    C3]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   26.481222][    C3]  vprintk_emit (kernel/printk/printk.c:2479)
[   26.481225][    C3]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   26.481228][    C3]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   26.481245][    C3]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   26.481248][    C3]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   26.481259][    C3]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   26.481269][    C3]  ? is_module_text_address (./include/linux/rcupdate.h:882 ./include/linux/rcupdate.h:1216 kernel/module/main.c:3934)
[   26.481274][    C3]  _printk (kernel/printk/printk.c:2504)
[   26.481277][    C3]  ? snapshot_read.cold (user.c:?)
[   26.481280][    C3]  ? arch_stack_walk (arch/x86/kernel/stacktrace.c:25)
[   26.481285][    C3]  ? rcu_lockdep_current_cpu_online (kernel/rcu/tree.c:4116 (discriminator 3) kernel/rcu/tree.c:4108 (discriminator 3))
[   26.481288][    C3]  ? nbcon_cpu_emergency_enter (./include/linux/instrumented.h:112 ./include/linux/atomic/atomic-instrumented.h:435 kernel/printk/nbcon.c:1723)
[   26.481291][    C3]  print_irq_inversion_bug.part.0 (kernel/locking/lockdep.c:4097 (discriminator 1))
[   26.481295][    C3]  mark_lock_irq (kernel/locking/lockdep.c:4095 kernel/locking/lockdep.c:4174 kernel/locking/lockdep.c:4310)
[   26.481299][    C3]  mark_lock (kernel/locking/lockdep.c:4769)
[   26.481302][    C3]  mark_usage (kernel/locking/lockdep.c:4658)
[   26.481304][    C3]  __lock_acquire (kernel/locking/lockdep.c:5208)
[   26.481307][    C3]  lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   26.481310][    C3]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   26.481321][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.481324][    C3]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   26.481326][    C3]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   26.481337][    C3]  _raw_spin_lock (./include/linux/spinlock_api_smp.h:190 (discriminator 1) kernel/locking/spinlock.c:173 (discriminator 1))
[   26.481340][    C3]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   26.481351][    C3] br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   26.481362][    C3]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   26.481373][    C3]  call_timer_fn (kernel/time/timer.c:1748)
[   26.481377][    C3]  ? detach_if_pending (./include/linux/list.h:1159)
[   26.481379][    C3]  ? debug_object_active_state (lib/debugobjects.c:1122)
[   26.481383][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   26.481386][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   26.481389][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.481392][    C3]  __run_timers (kernel/time/timer.c:1799 kernel/time/timer.c:2374)
[   26.481395][    C3]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   26.481407][    C3]  ? __bpf_trace_itimer_expire (./include/trace/events/timer.h:407)
[   26.481409][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   26.481414][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   26.481417][    C3]  run_timer_softirq (kernel/time/timer.c:2386 kernel/time/timer.c:2395 kernel/time/timer.c:2403)
[   26.481420][    C3]  ? __run_timers (./include/trace/events/timer.h:138 (discriminator 19))
[   26.481423][    C3]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   26.481426][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.481428][    C3]  handle_softirqs (kernel/softirq.c:645)
[   26.481431][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   26.481434][    C3]  ? _local_bh_enable (kernel/softirq.c:428 (discriminator 1))
[   26.481437][    C3]  __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
[   26.481439][    C3]  irq_exit_rcu (kernel/softirq.c:784)
[   26.481442][    C3]  sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1062 (discriminator 37) arch/x86/kernel/apic/apic.c:1062 (discriminator 37))
[   26.481445][    C3]  </IRQ>
[   26.481446][    C3]  <TASK>
[   26.481448][    C3]  asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:674)
[   26.481451][    C3] RIP: 0010:pv_native_safe_halt (./arch/x86/include/asm/irqflags.h:48 arch/x86/kernel/paravirt.c:63)
[   26.481455][    C3] 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
[   26.481457][    C3] RSP: 0018:ffa0000000167e00 EFLAGS: 00000282
[   26.481461][    C3] RAX: 00000000000f3b35 RBX: ff11000001c88040 RCX: ffffffff8d4f0307
[   26.481463][    C3] RDX: ff11000001c88040 RSI: ffffffff90238b01 RDI: ffffffff8fc8d8e0
[   26.481465][    C3] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
[   26.481466][    C3] R10: 0000000000000003 R11: 0000000000000001 R12: 1ff400000002cfc3
[   26.481468][    C3] R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000000000
[   26.481470][    C3]  ? cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   26.481475][    C3]  default_idle (./arch/x86/include/asm/paravirt.h:62 arch/x86/kernel/process.c:768)
[   26.481477][    C3]  default_idle_call (kernel/sched/idle.c:122)
[   26.481480][    C3]  cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   26.481482][    C3]  ? arch_cpu_idle_exit+0x40/0x40
[   26.481485][    C3]  ? mark_tsc_async_resets (arch/x86/kernel/tsc_sync.c:49)
[   26.481488][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.481490][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.481493][    C3]  do_idle (kernel/sched/idle.c:355)
[   26.481496][    C3]  cpu_startup_entry (kernel/sched/idle.c:454)
[   26.481498][    C3]  start_secondary (arch/x86/kernel/smpboot.c:312)
[   26.481500][    C3]  ? set_cpu_sibling_map (arch/x86/kernel/smpboot.c:733 (discriminator 4))
[   26.481504][    C3]  common_startup_64 (arch/x86/kernel/head_64.S:418)
| [   26.555734][    C3]
| [   26.555802][    C3]
| [   26.555802][    C3] stack backtrace:
| [   26.555979][    C3] Tainted: [W]=WARN
[   26.555980][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   26.555982][    C3] Call Trace:
[   26.555983][    C3]  <IRQ>
[   26.555984][    C3]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   26.555989][    C3]  print_irq_inversion_bug.part.0.cold (kernel/locking/lockdep.c:4141)
[   26.555992][    C3]  mark_lock_irq (kernel/locking/lockdep.c:4095 kernel/locking/lockdep.c:4174 kernel/locking/lockdep.c:4310)
[   26.555994][    C3]  mark_lock (kernel/locking/lockdep.c:4769)
[   26.555996][    C3]  mark_usage (kernel/locking/lockdep.c:4658)
[   26.555998][    C3]  __lock_acquire (kernel/locking/lockdep.c:5208)
[   26.556000][    C3]  lock_acquire.part.0 (kernel/locking/lockdep.c:5908 (discriminator 2))
[   26.556002][    C3]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   26.556009][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.556012][    C3]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   26.556014][    C3]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   26.556020][    C3]  _raw_spin_lock (./include/linux/spinlock_api_smp.h:190 (discriminator 1) kernel/locking/spinlock.c:173 (discriminator 1))
[   26.556022][    C3]  ? br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   26.556028][    C3] br_forward_delay_timer_expired (./include/linux/spinlock.h:347 net/bridge/br_stp_timer.c:88) bridge
[   26.556034][    C3]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   26.556040][    C3]  call_timer_fn (kernel/time/timer.c:1748)
[   26.556042][    C3]  ? detach_if_pending (./include/linux/list.h:1159)
[   26.556043][    C3]  ? debug_object_active_state (lib/debugobjects.c:1122)
[   26.556047][    C3]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   26.556049][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   26.556051][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.556053][    C3]  __run_timers (kernel/time/timer.c:1799 kernel/time/timer.c:2374)
[   26.556055][    C3]  ? br_message_age_timer_expired (net/bridge/br_stp_timer.c:54) bridge
[   26.556061][    C3]  ? __bpf_trace_itimer_expire (./include/trace/events/timer.h:407)
[   26.556063][    C3]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   26.556066][    C3]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   26.556068][    C3]  run_timer_softirq (kernel/time/timer.c:2386 kernel/time/timer.c:2395 kernel/time/timer.c:2403)
[   26.556070][    C3]  ? __run_timers (./include/trace/events/timer.h:138 (discriminator 19))
[   26.556072][    C3]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   26.556074][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.556076][    C3]  handle_softirqs (kernel/softirq.c:645)
[   26.556078][    C3]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   26.556079][    C3]  ? _local_bh_enable (kernel/softirq.c:428 (discriminator 1))
[   26.556081][    C3]  __irq_exit_rcu (kernel/softirq.c:679 kernel/softirq.c:519 kernel/softirq.c:767)
[   26.556083][    C3]  irq_exit_rcu (kernel/softirq.c:784)
[   26.556084][    C3]  sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1062 (discriminator 37) arch/x86/kernel/apic/apic.c:1062 (discriminator 37))
[   26.556086][    C3]  </IRQ>
[   26.556086][    C3]  <TASK>
[   26.556087][    C3]  asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:674)
[   26.556089][    C3] RIP: 0010:pv_native_safe_halt (./arch/x86/include/asm/irqflags.h:48 arch/x86/kernel/paravirt.c:63)
[   26.556091][    C3] 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
[   26.556093][    C3] RSP: 0018:ffa0000000167e00 EFLAGS: 00000282
[   26.556096][    C3] RAX: 00000000000f3b35 RBX: ff11000001c88040 RCX: ffffffff8d4f0307
[   26.556097][    C3] RDX: ff11000001c88040 RSI: ffffffff90238b01 RDI: ffffffff8fc8d8e0
[   26.556098][    C3] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
[   26.556099][    C3] R10: 0000000000000003 R11: 0000000000000001 R12: 1ff400000002cfc3
[   26.556100][    C3] R13: 0000000000000000 R14: dffffc0000000000 R15: 0000000000000000
[   26.556101][    C3]  ? cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   26.556103][    C3]  default_idle (./arch/x86/include/asm/paravirt.h:62 arch/x86/kernel/process.c:768)
[   26.556105][    C3]  default_idle_call (kernel/sched/idle.c:122)
[   26.556107][    C3]  cpuidle_idle_call.constprop.0 (kernel/sched/idle.c:199)
[   26.556108][    C3]  ? arch_cpu_idle_exit+0x40/0x40
[   26.556110][    C3]  ? mark_tsc_async_resets (arch/x86/kernel/tsc_sync.c:49)
[   26.556111][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.556113][    C3]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   26.556115][    C3]  do_idle (kernel/sched/idle.c:355)
[   26.556116][    C3]  cpu_startup_entry (kernel/sched/idle.c:454)
[   26.556118][    C3]  start_secondary (arch/x86/kernel/smpboot.c:312)
[   26.556119][    C3]  ? set_cpu_sibling_map (arch/x86/kernel/smpboot.c:733 (discriminator 4))
[   26.556121][    C3]  common_startup_64 (arch/x86/kernel/head_64.S:418)
| [   29.277854][  T727] softirqs last disabled at (0): 0x0
| [   29.277856][  T727] Preemption disabled at:
| [   29.277857][  T727] 0x0
| [   29.277866][  T727] Tainted: [W]=WARN
[   29.277867][  T727] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   29.277868][  T727] Call Trace:
[   29.277870][  T727]  <TASK>
[   29.277871][  T727]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   29.277876][  T727]  __might_resched.cold (kernel/sched/core.c:9234)
[   29.277880][  T727]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   29.277884][  T727]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.277888][  T727]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   29.277891][  T727]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   29.277894][  T727]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   29.277898][  T727]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   29.277899][  T727]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   29.277901][  T727]  put_chars (drivers/char/virtio_console.c:1176)
[   29.277903][  T727]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   29.277905][  T727]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   29.277908][  T727]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   29.277912][  T727]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   29.277914][  T727]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   29.277915][  T727]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.277917][  T727]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   29.277919][  T727]  console_emit_next_record (kernel/printk/printk.c:3183)
[   29.277922][  T727]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   29.277924][  T727]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.277925][  T727]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.277927][  T727]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.277928][  T727]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   29.277930][  T727]  ? console_flush_one_record (kernel/printk/printk.c:3247)
[   29.277939][  T727]  console_flush_one_record (kernel/printk/printk.c:3268)
[   29.277941][  T727]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   29.277944][  T727]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   29.277946][  T727]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   29.277948][  T727]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   29.277949][  T727]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.277951][  T727]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   29.277954][  T727]  ? lock_acquire (kernel/locking/lockdep.c:5913)
[   29.277956][  T727]  ? __rcu_read_lock (kernel/rcu/tree_plugin.h:391 (discriminator 6) kernel/rcu/tree_plugin.h:414 (discriminator 6))
[   29.277958][  T727]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   29.277960][  T727]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   29.277962][  T727]  vprintk_emit (kernel/printk/printk.c:2479)
[   29.277964][  T727]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   29.277966][  T727]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.277968][  T727]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   29.277970][  T727]  ? trace_hardirqs_on (kernel/trace/trace_preemptirq.c:78)
[   29.277972][  T727]  _printk (kernel/printk/printk.c:2504)
[   29.277975][  T727]  ? snapshot_read.cold (user.c:?)
[   29.277978][  T727]  ? ipv6_mc_down (net/ipv6/mcast.c:1137 net/ipv6/mcast.c:2792)
[   29.277983][  T727] br_set_state (net/bridge/br_stp.c:57 (discriminator 2)) bridge
[   29.277996][  T727] br_stp_disable_port (net/bridge/br_stp_if.c:106) bridge
[   29.278003][  T727] br_device_event (net/bridge/br.c:111) bridge
[   29.278012][  T727]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   29.278015][  T727]  ? _sub_I_65535_1+0x4d0/0x4d0 stp
[   29.278017][  T727]  ? addrconf_notify (net/ipv6/addrconf.c:3812)
[   29.278020][  T727]  notifier_call_chain (kernel/notifier.c:85)
[   29.278023][  T727]  __dev_notify_flags (net/core/dev.c:2313 net/core/dev.c:2327 net/core/dev.c:9855)
[   29.278027][  T727]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   29.278029][  T727]  ? netif_change_name (net/core/dev.c:1517)
[   29.278031][  T727]  ? netif_set_allmulti (./include/net/netdev_lock.h:30 (discriminator 1))
[   29.278033][  T727]  ? __kernel_text_address (kernel/extable.c:79)
[   29.278035][  T727]  ? write_profile (profile.c:?)
[   29.278037][  T727]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   29.278040][  T727]  netif_change_flags (net/core/dev.c:9882)
[   29.278042][  T727]  do_setlink.isra.0 (net/core/rtnetlink.c:3266 (discriminator 1))
[   29.278045][  T727]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   29.278046][  T727]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   29.278048][  T727]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.278049][  T727]  ? stack_depot_save_flags (lib/stackdepot.c:609 lib/stackdepot.c:676)
[   29.278053][  T727]  ? kasan_save_stack (mm/kasan/common.c:58)
[   29.278056][  T727]  ? kasan_save_stack (mm/kasan/common.c:57)
[   29.278057][  T727]  ? kasan_save_track (mm/kasan/common.c:78)
[   29.278059][  T727]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   29.278060][  T727]  ? __kmalloc_cache_noprof (./include/linux/kasan.h:263 mm/slub.c:5563)
[   29.278062][  T727]  ? rtnl_newlink (./include/linux/slab.h:991 (discriminator 1) net/core/rtnetlink.c:4113 (discriminator 1))
[   29.278063][  T727]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   29.278064][  T727]  ? netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   29.278067][  T727]  ? netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   29.278068][  T727]  ? netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   29.278070][  T727]  ? ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   29.278072][  T727]  ? ___sys_sendmsg (net/socket.c:2767)
[   29.278074][  T727]  ? __sys_sendmsg (net/socket.c:2799)
[   29.278075][  T727]  ? do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   29.278077][  T727]  ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   29.278080][  T727]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.278081][  T727]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   29.278083][  T727]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.278084][  T727]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.278086][  T727]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   29.278089][  T727]  ? __mutex_lock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:3188 kernel/locking/mutex.c:89 kernel/locking/mutex.c:134 kernel/locking/mutex.c:649 kernel/locking/mutex.c:821)
[   29.278091][  T727]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   29.278092][  T727]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   29.278094][  T727]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   29.278096][  T727]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   29.278098][  T727]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   29.278100][  T727]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.278101][  T727]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   29.278102][  T727]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   29.278104][  T727]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.278106][  T727]  ? is_bpf_text_address (./include/linux/rcupdate.h:850 kernel/bpf/core.c:749)
[   29.278109][  T727]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   29.278111][  T727]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   29.278112][  T727]  ? __kernel_text_address (kernel/extable.c:79)
[   29.278113][  T727]  ? write_profile (profile.c:?)
[   29.278114][  T727]  ? unwind_get_return_address (arch/x86/kernel/unwind_orc.c:385 arch/x86/kernel/unwind_orc.c:380)
[   29.278116][  T727]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.278117][  T727]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.278119][  T727]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   29.278122][  T727]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   29.278124][  T727]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.278125][  T727]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   29.278127][  T727]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   29.278128][  T727]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   29.278130][  T727]  ? filter_irq_stacks (kernel/stacktrace.c:402)
[   29.278131][  T727]  ? stack_depot_save_flags (lib/stackdepot.c:609 lib/stackdepot.c:676)
[   29.278133][  T727]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   29.278135][  T727]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   29.278136][  T727]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   29.278137][  T727]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   29.278139][  T727]  ? __netlink_lookup (./include/linux/rcupdate.h:850 ./include/linux/rhashtable.h:709 net/netlink/af_netlink.c:499)
[   29.278141][  T727]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.278143][  T727]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   29.278145][  T727]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   29.278146][  T727]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   29.278148][  T727]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.278150][  T727]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.278151][  T727]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   29.278153][  T727]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   29.278155][  T727]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   29.278157][  T727]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.278158][  T727]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   29.278160][  T727]  ____sys_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2713 (discriminator 4))
[   29.278162][  T727]  ? copy_msghdr_from_user (net/socket.c:2650)
[   29.278163][  T727]  ? get_timestamp.constprop.0 (./include/linux/netdevice.h:5399)
[   29.278165][  T727]  ? move_addr_to_kernel (net/socket.c:258)
[   29.278166][  T727]  ? filter_irq_stacks (kernel/stacktrace.c:402)
[   29.278169][  T727]  ___sys_sendmsg (net/socket.c:2767)
[   29.278171][  T727]  ? copy_msghdr_from_user (net/socket.c:2619)
[   29.278175][  T727]  __sys_sendmsg (net/socket.c:2799)
[   29.278177][  T727]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   29.278180][  T727]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   29.278182][  T727]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   29.278183][  T727]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   29.278185][  T727]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   29.278187][  T727] RIP: 0033:0x7fe529c9454e
[   29.278189][  T727] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   29.278191][  T727] RSP: 002b:00007ffe59e493f0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   29.278195][  T727] RAX: ffffffffffffffda RBX: 0000000000000003 RCX: 00007fe529c9454e
[   29.278196][  T727] RDX: 0000000000000000 RSI: 00007ffe59e494a0 RDI: 0000000000000005
[   29.278197][  T727] RBP: 00007ffe59e49400 R08: 0000000000000000 R09: 0000000000000000
[   29.278198][  T727] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a910de7


Finger prints:
mark_lock_irq:mark_lock:mark_usage:__lock_acquire:_raw_spin_lock
__irq_exit_rcu:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print
netlink_release:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print
__kmalloc_noprof:put_chars:hvc_console_print:console_emit_next_record:console_flush_one_record
__alloc_skb:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars