======================================
| [   13.156301][  T200] softirqs last disabled at (369440): __alloc_skb (./include/linux/bottom_half.h:20 (discriminator 2) net/core/skbuff.c:697 (discriminator 2))
| [   13.156303][  T200] Preemption disabled at:
| [   13.156304][  T200] vprintk_emit (kernel/printk/printk.c:2471)
| [   13.156314][  T200] Tainted: [W]=WARN
[   13.156314][  T200] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[   13.156316][  T200] Call Trace:
[   13.156317][  T200]  <TASK>
[   13.156319][  T200]  dump_stack_lvl (lib/dump_stack.c:94 lib/dump_stack.c:120)
[   13.156325][  T200]  ? vprintk_emit (kernel/printk/printk.c:2471)
[   13.156327][  T200]  __might_resched.cold (kernel/sched/core.c:9234)
[   13.156332][  T200]  ? perf_trace_sched_switch (./include/linux/list.h:1037 (discriminator 3))
[   13.156336][  T200]  ? __kmalloc_noprof (./include/linux/sched/mm.h:317 mm/slub.c:4636 mm/slub.c:4974 mm/slub.c:5413 mm/slub.c:5439)
[   13.156341][  T200]  __kmalloc_noprof (./include/linux/sched/mm.h:322 (discriminator 2) mm/slub.c:4636 (discriminator 2) mm/slub.c:4974 (discriminator 2) mm/slub.c:5413 (discriminator 2) mm/slub.c:5439 (discriminator 2))
[   13.156351][  T200]  ? alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   13.156358][  T200]  ? do_raw_spin_unlock (./include/linux/instrumented.h:82 ./include/linux/atomic/atomic-instrumented.h:32 ./include/asm-generic/qspinlock.h:58 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141)
[   13.156361][  T200]  alloc_buf.isra.0 (./include/linux/slab.h:995 drivers/char/virtio_console.c:429)
[   13.156364][  T200]  put_chars (drivers/char/virtio_console.c:1176)
[   13.156368][  T200]  ? __send_to_port (drivers/char/virtio_console.c:654)
[   13.156372][  T200]  ? validate_chain (kernel/locking/lockdep.c:159 kernel/locking/lockdep.c:191 kernel/locking/lockdep.c:3928)
[   13.156376][  T200]  hvc_console_print (drivers/tty/hvc/hvc_console.c:177 (discriminator 2))
[   13.156380][  T200]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   13.156382][  T200]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.156383][  T200]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.156387][  T200]  ? hvc_write (drivers/tty/hvc/hvc_console.c:501)
[   13.156389][  T200]  ? console_emit_next_record (kernel/printk/printk.c:3095 (discriminator 2) kernel/printk/printk.c:3182 (discriminator 2))
[   13.156393][  T200]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.156396][  T200]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   13.156400][  T200]  console_emit_next_record (kernel/printk/printk.c:3183)
[   13.156404][  T200]  ? devkmsg_read (./arch/x86/include/asm/atomic64_64.h:20)
[   13.156408][  T200]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.156411][  T200]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 22) kernel/locking/lockdep.c:5871 (discriminator 22))
[   13.156414][  T200]  console_flush_one_record (kernel/printk/printk.c:3268)
[   13.156418][  T200]  ? console_emit_next_record (kernel/printk/printk.c:3150)
[   13.156420][  T200]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.156425][  T200]  console_unlock (kernel/printk/printk.c:3350 kernel/printk/printk.c:3380 kernel/printk/printk.c:3420)
[   13.156428][  T200]  ? console_flush_one_record (kernel/printk/printk.c:3316)
[   13.156430][  T200]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.156432][  T200]  ? lock_acquire (./include/trace/events/lock.h:23 (discriminator 18) ./include/trace/events/lock.h:23 (discriminator 18) kernel/locking/lockdep.c:5871 (discriminator 18))
[   13.156435][  T200]  ? __down_trylock_console_sem (kernel/printk/printk.c:334)
[   13.156437][  T200]  ? vprintk_emit (kernel/printk/printk.c:2478)
[   13.156440][  T200]  vprintk_emit (kernel/printk/printk.c:2479)
[   13.156444][  T200]  ? wake_up_klogd_work_func (kernel/printk/printk.c:4603 (discriminator 126))
[   13.156447][  T200]  ? mark_usage (kernel/locking/lockdep.c:4690)
[   13.156449][  T200]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.156453][  T200]  dev_vprintk_emit (drivers/base/core.c:5000)
[   13.156458][  T200]  ? device_rename.cold (drivers/base/core.c:4612 (discriminator 13))
[   13.156462][  T200]  ? is_bpf_text_address (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) kernel/bpf/core.c:751 (discriminator 2))
[   13.156468][  T200]  dev_printk_emit (drivers/base/core.c:5011)
[   13.156471][  T200]  ? dev_vprintk_emit (drivers/base/core.c:5001)
[   13.156478][  T200]  __netdev_printk (net/core/dev.c:13140 (discriminator 4))
[   13.156484][  T200]  netdev_err (net/core/dev.c:13192 (discriminator 3))
[   13.156486][  T200]  ? netdev_crit (net/core/dev.c:13191)
[   13.156489][  T200]  ? kasan_save_stack (mm/kasan/common.c:58)
[   13.156492][  T200]  ? kasan_save_stack (mm/kasan/common.c:57)
[   13.156494][  T200]  ? kmemdup_noprof (mm/util.c:138 (discriminator 1))
[   13.156497][  T200]  ? ethnl_default_set_doit (net/ethtool/netlink.c:937 (discriminator 7))
[   13.156499][  T200]  ? genl_family_rcv_msg_doit (net/netlink/genetlink.c:1114)
[   13.156501][  T200]  ? genl_family_rcv_msg (net/netlink/genetlink.c:1194)
[   13.156503][  T200]  ? genl_rcv_msg (net/netlink/genetlink.c:1209)
[   13.156505][  T200]  ? netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   13.156507][  T200]  ? genl_rcv (net/netlink/genetlink.c:1218)
[   13.156508][  T200]  ? netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   13.156511][  T200]  ? __sys_sendto (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2281 (discriminator 4))
[   13.156513][  T200]  ? __x64_sys_sendto (net/socket.c:2288 net/socket.c:2284 net/socket.c:2284)
[   13.156516][  T200]  virtnet_set_ringparam.cold (drivers/net/virtio_net.c:3530 drivers/net/virtio_net.c:4173)
[   13.156522][  T200]  ? virtnet_get_ringparam (drivers/net/virtio_net.c:4138)
[   13.156527][  T200]  ? 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)
[   13.156530][  T200]  ? virtnet_xdp (drivers/net/virtio_net.c:6004)
[   13.156533][  T200]  ethnl_set_rings (net/ethtool/rings.c:303)
[   13.156537][  T200]  ? ethnl_set_rings_validate (net/ethtool/rings.c:158)
[   13.156539][  T200]  ? find_held_lock (kernel/locking/lockdep.c:5367)
[   13.156544][  T200]  ? lockdep_hardirqs_on_prepare.part.0 (kernel/locking/lockdep.c:470 (discriminator 2) kernel/locking/lockdep.c:4427 (discriminator 2))
[   13.156546][  T200]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   13.156549][  T200]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:210 (discriminator 6) kernel/locking/spinlock.c:221 (discriminator 6))
[   13.156552][  T200]  ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:211 (discriminator 1) kernel/locking/spinlock.c:221 (discriminator 1))
[   13.156556][  T200]  ethnl_default_set_doit (net/ethtool/netlink.c:948)
[   13.156561][  T200]  genl_family_rcv_msg_doit (net/netlink/genetlink.c:1114)
[   13.156564][  T200]  ? genl_family_rcv_msg_attrs_parse.isra.0 (./include/net/netlink.h:785 (discriminator 2))
[   13.156566][  T200]  ? __lock_release.isra.0 (kernel/locking/lockdep.c:5554)
[   13.156572][  T200]  ? rcu_is_watching (./include/linux/context_tracking.h:128 (discriminator 3) kernel/rcu/tree.c:753 (discriminator 3))
[   13.156574][  T200]  ? cap_capable (./include/trace/events/capability.h:26 (discriminator 22) security/commoncap.c:130 (discriminator 22))
[   13.156580][  T200]  genl_family_rcv_msg (net/netlink/genetlink.c:1194)
[   13.156584][  T200]  ? genl_family_rcv_msg_dumpit (net/netlink/genetlink.c:1079)
[   13.156586][  T200]  ? rcu_read_lock_any_held (./include/linux/lockdep.h:249 kernel/rcu/update.c:386 kernel/rcu/update.c:380)
[   13.156588][  T200]  ? ethnl_notify (./include/net/netdev_lock.h:33)
[   13.156591][  T200]  ? __lock_acquire (kernel/locking/lockdep.c:5254)
[   13.156596][  T200]  genl_rcv_msg (net/netlink/genetlink.c:1209)
[   13.156599][  T200]  netlink_rcv_skb (net/netlink/af_netlink.c:2556)
[   13.156601][  T200]  ? genl_family_rcv_msg (net/netlink/genetlink.c:1136 (discriminator 2))
[   13.156605][  T200]  ? netlink_ack (./include/linux/skbuff.h:2718)
[   13.156612][  T200]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) ./include/net/netns/generic.h:48 (discriminator 2) net/netlink/af_netlink.c:334 (discriminator 2))
[   13.156614][  T200]  ? netlink_deliver_tap (./include/linux/rcupdate.h:319 (discriminator 2) ./include/linux/rcupdate.h:880 (discriminator 2) net/netlink/af_netlink.c:341 (discriminator 2))
[   13.156618][  T200]  genl_rcv (net/netlink/genetlink.c:1218)
[   13.156620][  T200]  netlink_unicast (net/netlink/af_netlink.c:1319 net/netlink/af_netlink.c:1345)
[   13.156624][  T200]  ? netlink_attachskb (./arch/x86/include/asm/bitops.h:202 (discriminator 1))
[   13.156629][  T200]  netlink_sendmsg (net/netlink/af_netlink.c:1900)
[   13.156633][  T200]  ? netlink_unicast (./include/net/net_namespace.h:422 (discriminator 7))
[   13.156637][  T200]  ? ___sys_sendmsg (net/socket.c:2771)
[   13.156640][  T200]  ? mksaveddirty_shift (./arch/x86/include/asm/pgtable.h:373)
[   13.156645][  T200]  __sys_sendto (net/socket.c:800 (discriminator 4) net/socket.c:815 (discriminator 4) net/socket.c:2281 (discriminator 4))
[   13.156647][  T200]  ? __ia32_sys_getpeername (net/socket.c:2235)
[   13.156660][  T200]  __x64_sys_sendto (net/socket.c:2288 net/socket.c:2284 net/socket.c:2284)
[   13.156662][  T200]  ? trace_irq_enable.constprop.0 (./include/trace/events/preemptirq.h:40 (discriminator 22))
[   13.156665][  T200]  ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4488)
[   13.156667][  T200]  ? do_syscall_64 (arch/x86/entry/syscall_64.c:81 (discriminator 44))
[   13.156669][  T200]  do_syscall_64 (arch/x86/entry/syscall_64.c:61 arch/x86/entry/syscall_64.c:84)
[   13.156670][  T200]  ? exc_page_fault (arch/x86/mm/fault.c:1489 (discriminator 3) arch/x86/mm/fault.c:1536 (discriminator 3))
[   13.156673][  T200]  entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:121)
[   13.156675][  T200] RIP: 0033:0x7f36e7f9d54e
[   13.156680][  T200] Code: 4d 89 d8 e8 b4 bd 00 00 4c 8b 5d f8 41 8b 93 08 03 00 00 59 5e 48 83 f8 fc 74 11 c9 c3 0f 1f 80 00 00 00 00 48 8b 45 10 0f 05 <c9> c3 83 e2 39 83 fa 08 75 e7 e8 03 ff ff ff 0f 1f 00 f3 0f 1e fa
All code
========
   0:	4d 89 d8             	mov    %r11,%r8
   3:	e8 b4 bd 00 00       	call   0xbdbc
   8:	4c 8b 5d f8          	mov    -0x8(%rbp),%r11
   c:	41 8b 93 08 03 00 00 	mov    0x308(%r11),%edx
  13:	59                   	pop    %rcx
  14:	5e                   	pop    %rsi
  15:	48 83 f8 fc          	cmp    $0xfffffffffffffffc,%rax
  19:	74 11                	je     0x2c
  1b:	c9                   	leave
  1c:	c3                   	ret
  1d:	0f 1f 80 00 00 00 00 	nopl   0x0(%rax)
  24:	48 8b 45 10          	mov    0x10(%rbp),%rax
  28:	0f 05                	syscall
  2a:*	c9                   	leave		<-- trapping instruction
  2b:	c3                   	ret
  2c:	83 e2 39             	and    $0x39,%edx
  2f:	83 fa 08             	cmp    $0x8,%edx
  32:	75 e7                	jne    0x1b
  34:	e8 03 ff ff ff       	call   0xffffffffffffff3c
  39:	0f 1f 00             	nopl   (%rax)
  3c:	f3 0f 1e fa          	endbr64

Code starting with the faulting instruction
===========================================
   0:	c9                   	leave
   1:	c3                   	ret
   2:	83 e2 39             	and    $0x39,%edx
   5:	83 fa 08             	cmp    $0x8,%edx
   8:	75 e7                	jne    0xfffffffffffffff1
   a:	e8 03 ff ff ff       	call   0xffffffffffffff12
   f:	0f 1f 00             	nopl   (%rax)
  12:	f3 0f 1e fa          	endbr64
[   13.156681][  T200] RSP: 002b:00007ffca74a0530 EFLAGS: 00000202 ORIG_RAX: 000000000000002c
[   13.156684][  T200] RAX: ffffffffffffffda RBX: 00007ffca74a0640 RCX: 00007f36e7f9d54e
[   13.156686][  T200] RDX: 0000000000000028 RSI: 00007f36e73e5ea0 RDI: 0000000000000006
[   13.156686][  T200] RBP: 00007ffca74a0540 R08: 0000000000000000 R09: 0000000000000000
[   13.156687][  T200] R10: 0000000000000000 R11: 0000000000000202 R12: 00007f36e7547cb0


Finger prints:
__alloc_skb:vprintk_emit:dump_stack_lvl:__kmalloc_noprof:put_chars