======================================
| [  589.162313][    C3] 1 lock held by udpgso_bench_tx/7179:
| [ 589.162606][ C3] #0: ffff88800a95c0c0 (&sb->s_type->i_mutex_key#6){+.+.}-{4:4}, at: __sock_release (net/socket.c:647) 
| [  589.163167][    C3]
| [  589.163167][    C3] stack backtrace:
[  589.163515][    C3] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[  589.163517][    C3] Call Trace:
[  589.163519][    C3]  <IRQ>
[ 589.163522][ C3] dump_stack_lvl (lib/dump_stack.c:123) 
[ 589.163532][ C3] lockdep_rcu_suspicious (kernel/locking/lockdep.c:6866) 
[ 589.163545][ C3] veth_xdp_rcv (drivers/net/veth.c:907 (discriminator 9)) 
[ 589.163556][ C3] ? kasan_quarantine_put (mm/kasan/quarantine.c:234 (discriminator 1)) 
[ 589.163565][ C3] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4473) 
[ 589.163578][ C3] ? __pfx_veth_xdp_rcv (drivers/net/veth.c:899) 
[ 589.163582][ C3] ? arp_process (net/ipv4/arp.c:944) 
[ 589.163592][ C3] ? arp_process (net/ipv4/arp.c:945) 
[ 589.163606][ C3] veth_poll (drivers/net/veth.c:977) 
[ 589.163611][ C3] ? __pfx_veth_poll (drivers/net/veth.c:965) 
[ 589.163623][ C3] ? find_held_lock (kernel/locking/lockdep.c:5348) 
[ 589.163630][ C3] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 589.163637][ C3] ? trace_pelt_se_tp (./include/trace/events/sched.h:796 (discriminator 21)) 
[ 589.163642][ C3] ? __update_load_avg_se (kernel/sched/pelt.c:314) 
[ 589.163660][ C3] __napi_poll.constprop.0 (net/core/dev.c:7383) 
[ 589.163669][ C3] net_rx_action (net/core/dev.c:7447 net/core/dev.c:7569) 
[ 589.163681][ C3] ? __pfx_net_rx_action (net/core/dev.c:7531) 
[ 589.163684][ C3] ? try_to_wake_up (kernel/sched/core.c:4331) 
[ 589.163688][ C3] ? lock_downgrade (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:119 ./arch/x86/include/asm/irqflags.h:159 kernel/locking/lockdep.c:5763) 
[ 589.163696][ C3] ? do_raw_spin_unlock (./arch/x86/include/asm/atomic.h:23 ./include/linux/atomic/atomic-arch-fallback.h:457 ./include/linux/atomic/atomic-instrumented.h:33 ./include/asm-generic/qspinlock.h:57 kernel/locking/spinlock_debug.c:101 kernel/locking/spinlock_debug.c:141) 
[ 589.163702][ C3] ? try_to_wake_up (./arch/x86/include/asm/preempt.h:104 ./include/linux/preempt.h:481 ./include/linux/preempt.h:481 kernel/sched/core.c:4176) 
[ 589.163708][ C3] ? __pfx_try_to_wake_up (kernel/sched/core.c:4175) 
[ 589.163720][ C3] handle_softirqs (kernel/softirq.c:579) 
[ 589.163730][ C3] ? udp_destroy_sock (./include/linux/spinlock.h:397 ./include/net/sock.h:1712 net/ipv4/udp.c:2892) 
[ 589.163736][ C3] do_softirq (kernel/softirq.c:480 kernel/softirq.c:467) 
[  589.163740][    C3]  </IRQ>
[  589.163741][    C3]  <TASK>
[ 589.163742][ C3] __local_bh_enable_ip (kernel/softirq.c:407) 
[ 589.163747][ C3] udp_destroy_sock (./include/linux/spinlock.h:397 ./include/net/sock.h:1712 net/ipv4/udp.c:2892) 
[ 589.163752][ C3] sk_common_release (net/core/sock.c:3897) 
[ 589.163760][ C3] inet_release (net/ipv4/af_inet.c:435) 
[ 589.163767][ C3] __sock_release (net/socket.c:647) 
[ 589.163773][ C3] sock_close (net/socket.c:1393) 
[ 589.163775][ C3] __fput (fs/file_table.c:465) 
[ 589.163788][ C3] fput_close_sync (fs/file_table.c:568) 
[ 589.163792][ C3] ? __pfx_fput_close_sync (fs/file_table.c:568) 
[ 589.163803][ C3] __x64_sys_close (fs/open.c:1584 fs/open.c:1566 fs/open.c:1566) 
[ 589.163810][ C3] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[ 589.163815][ C3] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[  589.163820][    C3] RIP: 0033:0x7f45d88e1227
[ 589.163825][ C3] Code: ff e8 9d e3 01 00 66 2e 0f 1f 84 00 00 00 00 00 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 03 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 41 c3 48 83 ec 18 89 7c 24 0c e8 e3 c9 f5 ff
All code
========
   0:	ff                   	ljmp   (bad)
   1:	e8 9d e3 01 00       	call   0x1e3a3
   6:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
   d:	00 00 00 
  10:	0f 1f 00             	nopl   (%rax)
  13:	f3 0f 1e fa          	endbr64
  17:	64 8b 04 25 18 00 00 	mov    %fs:0x18,%eax
  1e:	00 
  1f:	85 c0                	test   %eax,%eax
  21:	75 10                	jne    0x33
  23:	b8 03 00 00 00       	mov    $0x3,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 41                	ja     0x73
  32:	c3                   	ret
  33:	48 83 ec 18          	sub    $0x18,%rsp
  37:	89 7c 24 0c          	mov    %edi,0xc(%rsp)
  3b:	e8 e3 c9 f5 ff       	call   0xfffffffffff5ca23

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 41                	ja     0x49
   8:	c3                   	ret
   9:	48 83 ec 18          	sub    $0x18,%rsp
   d:	89 7c 24 0c          	mov    %edi,0xc(%rsp)
  11:	e8 e3 c9 f5 ff       	call   0xfffffffffff5c9f9
[  589.163827][    C3] RSP: 002b:00007ffddd23d148 EFLAGS: 00000246 ORIG_RAX: 0000000000000003
[  589.163831][    C3] RAX: ffffffffffffffda RBX: 00000000000032c8 RCX: 00007f45d88e1227
[  589.163833][    C3] RDX: 0000000000000000 RSI: 00007ffddd23d1e0 RDI: 0000000000000005
[  589.163835][    C3] RBP: 00007ffddd23d290 R08: 00000000000032c8 R09: 00007ffddd23d130
[  589.163837][    C3] R10: 00007f45d87afef8 R11: 0000000000000246 R12: 0000000000000005


Finger prints:
lockdep_rcu_suspicious:veth_xdp_rcv:veth_poll:net_rx_action:handle_softirqs