======================================
| [   10.093807][  T237] softirqs last disabled at (0): 0x0
| [   10.093809][  T237] Preemption disabled at:
| [   10.093810][  T237] vprintk_emit (kernel/printk/printk.c:2471)
| [   10.093823][  T237] Tainted: [W]=WARN
[   10.093824][  T237] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   10.093827][  T237] Call Trace:
[   10.093829][  T237]  <TASK>
[   10.093830][  T237]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   10.093837][  T237]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   10.093839][  T237]  __might_resched.cold (kernel/sched/core.c:9234)
[   10.093843][  T237]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   10.093847][  T237]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.093850][  T237]  __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))
[   10.093854][  T237]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   10.093857][  T237]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.093863][  T237]  ? 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)
[   10.093866][  T237]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   10.093870][  T237]  put_chars (drivers/char/virtio_console.c:1176)
[   10.093872][  T237]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   10.093874][  T237]  ? printk_get_next_message (kernel/printk/printk.c:3072)
[   10.093877][  T237]  ? console_prepend_replay (kernel/printk/printk.c:3005)
[   10.093880][  T237]  ? pointer (lib/vsprintf.c:2577)
[   10.093884][  T237]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   10.093891][  T237]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   10.093893][  T237]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   10.093896][  T237]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.093899][  T237]  console_emit_next_record (kernel/printk/printk.c:3183)
[   10.093903][  T237]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   10.093906][  T237]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.093908][  T237]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.093910][  T237]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.093912][  T237]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.093914][  T237]  ? console_flush_one_record (kernel/printk/printk.c:3247)
[   10.093917][  T237]  console_flush_one_record (kernel/printk/printk.c:3268)
[   10.093921][  T237]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   10.093925][  T237]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   10.093927][  T237]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.093930][  T237]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   10.093932][  T237]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.093934][  T237]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   10.093936][  T237]  ? lock_acquire (./include/linux/srcutree.h:374 ./include/linux/srcu.h:541 ./include/linux/srcu.h:645 ./include/trace/events/lock.h:23 ./include/trace/events/lock.h:23 kernel/locking/lockdep.c:5871)
[   10.093939][  T237]  ? __rcu_read_lock (kernel/rcu/tree_plugin.h:391 (discriminator 6))
[   10.093941][  T237]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   10.093944][  T237]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   10.093946][  T237]  vprintk_emit (kernel/printk/printk.c:2479)
[   10.093949][  T237]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   10.093951][  T237]  ? prepare_to_wait_event (kernel/sched/wait.c:318 (discriminator 7))
[   10.093954][  T237]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   10.093958][  T237]  ? _mutex_trylock_nest_lock (kernel/locking/mutex.c:1227 (discriminator 6))
[   10.093962][  T237]  _printk (kernel/printk/printk.c:2504)
[   10.093965][  T237]  ? snapshot_read.cold (user.c:?)
[   10.093968][  T237]  ? synchronize_rcu_normal (kernel/rcu/tree.c:3360)
[   10.093972][  T237]  ? netdev_name (./include/linux/netdevice.h:5709 (discriminator 1))
[   10.093976][  T237]  ? __netdev_printk (net/core/dev.c:13148 (discriminator 2))
[   10.093978][  T237]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   10.093983][  T237]  netdev_info (net/core/dev.c:13195 (discriminator 3))
[   10.093986][  T237]  ? netdev_notice (net/core/dev.c:13194)
[   10.093989][  T237]  ? do_raw_spin_lock (./include/linux/instrumented.h:55 ./include/linux/atomic/atomic-instrumented.h:1301 ./include/asm-generic/qspinlock.h:112 kernel/locking/spinlock_debug.c:116)
[   10.093992][  T237]  ? __dev_change_net_namespace (net/core/dev.c:12342 net/core/dev.c:12883)
[   10.093995][  T237]  ? __rwlock_init (kernel/locking/spinlock_debug.c:48)
[   10.093998][  T237]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.093999][  T237]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.094001][  T237]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   10.094003][  T237]  ? trace_irq_disable.constprop.0 (./include/trace/events/preemptirq.h:36 (discriminator 22))
[   10.094006][  T237]  ? trace_irq_enable.constprop.0 (./include/linux/instrumented.h:82 ./include/asm-generic/bitops/instrumented-non-atomic.h:141 ./include/linux/cpumask.h:650 ./include/linux/cpumask.h:1232 ./include/trace/events/preemptirq.h:40)
[   10.094008][  T237]  ? do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   10.094010][  T237]  netif_change_name.cold (net/core/dev.c:1507 (discriminator 3))
[   10.094013][  T237]  ? register_netdev (net/core/dev.c:11618)
[   10.094015][  T237]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   10.094018][  T237]  ? netdev_adjacent_rename_links (net/core/dev.c:9598)
[   10.094021][  T237]  ? __kernel_text_address (kernel/extable.c:79)
[   10.094025][  T237]  ? write_profile (profile.c:?)
[   10.094029][  T237]  ? __asan_memset (mm/kasan/shadow.c:84 (discriminator 1))
[   10.094033][  T237]  do_setlink.isra.0 (net/core/rtnetlink.c:3246)
[   10.094036][  T237]  ? stack_trace_save (kernel/stacktrace.c:122 (discriminator 1))
[   10.094039][  T237]  ? rtnl_link_get_size (net/core/rtnetlink.c:747)
[   10.094040][  T237]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.094042][  T237]  ? stack_depot_save_flags (lib/stackdepot.c:609 lib/stackdepot.c:676)
[   10.094047][  T237]  ? kasan_save_stack (mm/kasan/common.c:58)
[   10.094049][  T237]  ? kasan_save_stack (mm/kasan/common.c:57)
[   10.094051][  T237]  ? kasan_save_track (mm/kasan/common.c:78)
[   10.094053][  T237]  ? __kasan_kmalloc (mm/kasan/common.c:398 mm/kasan/common.c:415)
[   10.094055][  T237]  ? __kmalloc_cache_noprof (./include/linux/kasan.h:263 mm/slub.c:5563)
[   10.094057][  T237]  ? rtnl_newlink (./include/linux/slab.h:991 (discriminator 1) net/core/rtnetlink.c:4113 (discriminator 1))
[   10.094059][  T237]  ? rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   10.094060][  T237]  ? netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   10.094064][  T237]  ? netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   10.094066][  T237]  ? netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   10.094068][  T237]  ? __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   10.094072][  T237]  ? ____sys_sendmsg (net/socket.c:2713)
[   10.094074][  T237]  ? ___sys_sendmsg (net/socket.c:2767)
[   10.094076][  T237]  ? __sys_sendmsg (net/socket.c:2799)
[   10.094078][  T237]  ? do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   10.094081][  T237]  ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   10.094085][  T237]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.094087][  T237]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.094089][  T237]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.094091][  T237]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.094093][  T237]  ? trace_contention_end (./include/trace/events/lock.h:121 (discriminator 22))
[   10.094095][  T237]  ? __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)
[   10.094097][  T237]  ? __mutex_lock (kernel/locking/mutex.c:656 (discriminator 1) kernel/locking/mutex.c:821 (discriminator 1))
[   10.094099][  T237]  ? rtnl_newlink (net/core/rtnetlink.c:80 net/core/rtnetlink.c:366 net/core/rtnetlink.c:4214)
[   10.094102][  T237]  ? ww_mutex_lock (kernel/locking/mutex.c:934)
[   10.094104][  T237]  ? nla_get_range_signed (lib/nlattr.c:270)
[   10.094108][  T237]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.094111][  T237]  ? __rtnl_newlink (net/core/rtnetlink.c:4063)
[   10.094114][  T237]  rtnl_newlink (net/core/rtnetlink.c:4215)
[   10.094117][  T237]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.094119][  T237]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   10.094121][  T237]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.094123][  T237]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.094126][  T237]  ? is_bpf_text_address (./include/linux/rcupdate.h:850 kernel/bpf/core.c:749)
[   10.094129][  T237]  ? is_bpf_text_address (./include/linux/rcupdate.h:882 kernel/bpf/core.c:751)
[   10.094131][  T237]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   10.094133][  T237]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.094136][  T237]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   10.094140][  T237]  ? arch_stack_walk (arch/x86/kernel/stacktrace.c:26)
[   10.094143][  T237]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.094145][  T237]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.094147][  T237]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.094149][  T237]  ? rtnl_bridge_getlink (net/core/rtnetlink.c:5558)
[   10.094151][  T237]  rtnetlink_rcv_msg (net/core/rtnetlink.c:7132)
[   10.094154][  T237]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   10.094156][  T237]  ? filter_irq_stacks (kernel/stacktrace.c:402)
[   10.094158][  T237]  ? stack_depot_save_flags (lib/stackdepot.c:609 lib/stackdepot.c:676)
[   10.094162][  T237]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   10.094164][  T237]  ? rtnl_link_fill (./include/net/netlink.h:1107 (discriminator 1))
[   10.094167][  T237]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   10.094169][  T237]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   10.094171][  T237]  ? __netlink_lookup (./include/linux/rcupdate.h:850 ./include/linux/rhashtable.h:709 net/netlink/af_netlink.c:499)
[   10.094176][  T237]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.094178][  T237]  ? lock_release (./include/trace/events/lock.h:68 (discriminator 22) kernel/locking/lockdep.c:5920 (discriminator 22))
[   10.094181][  T237]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   10.094184][  T237]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   10.094187][  T237]  ? entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   10.094190][  T237]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   10.094193][  T237]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   10.094195][  T237]  ? kernel_text_address (kernel/extable.c:125 kernel/extable.c:94)
[   10.094198][  T237]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   10.094200][  T237]  ? __import_iovec (lib/iov_iter.c:1358 lib/iov_iter.c:1373)
[   10.094204][  T237]  __sock_sendmsg (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4))
[   10.094207][  T237]  ____sys_sendmsg (net/socket.c:2713)
[   10.094210][  T237]  ? copy_msghdr_from_user (net/socket.c:2650)
[   10.094212][  T237]  ? sock_write_iter (net/socket.c:1269)
[   10.094214][  T237]  ? move_addr_to_kernel (net/socket.c:258)
[   10.094217][  T237]  ? filter_irq_stacks (kernel/stacktrace.c:402)
[   10.094221][  T237]  ___sys_sendmsg (net/socket.c:2767)
[   10.094224][  T237]  ? copy_msghdr_from_user (net/socket.c:2619)
[   10.094232][  T237]  __sys_sendmsg (net/socket.c:2799)
[   10.094235][  T237]  ? __sys_sendmsg_sock (net/socket.c:2780)
[   10.094239][  T237]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   10.094241][  T237]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   10.094244][  T237]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   10.094251][  T237]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   10.094253][  T237] RIP: 0033:0x7f32d04eb54e
[   10.094256][  T237] 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
[   10.094258][  T237] RSP: 002b:00007ffec9f26bd0 EFLAGS: 00000202 ORIG_RAX: 000000000000002e
[   10.094262][  T237] RAX: ffffffffffffffda RBX: 0000000000000006 RCX: 00007f32d04eb54e
[   10.094264][  T237] RDX: 0000000000000000 RSI: 00007ffec9f26c80 RDI: 0000000000000005
[   10.094266][  T237] RBP: 00007ffec9f26be0 R08: 0000000000000000 R09: 0000000000000000
[   10.094267][  T237] R10: 0000000000000000 R11: 0000000000000202 R12: 000000006a9134c8


Finger prints:
vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars:hvc_console_print