======================================
|
| WAIT TIMEOUT stdout
| [ 5413.200120][    C2] Oops: general protection fault, probably for non-canonical address 0xdffffc0000000091: 0000 [#1] SMP KASAN NOPTI
| [ 5413.200667][    C2] KASAN: null-ptr-deref in range [0x0000000000000488-0x000000000000048f]
[ 5413.201262][    C2] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 5413.201491][ C2] RIP: 0010:veth_xdp_rcv (./include/linux/netdevice.h:2636 (discriminator 13) drivers/net/veth.c:912 (discriminator 13)) 
[ 5413.201687][ C2] Code: 40 0d 00 00 e8 6f 3f de 00 85 c0 0f 85 c6 06 00 00 49 8d bc 24 88 04 00 00 48 b8 00 00 00 00 00 fc ff df 48 89 fa 48 c1 ea 03 <0f> b6 04 02 84 c0 74 08 3c 03 0f 8e b6 0a 00 00 41 3b ac 24 88 04
All code
========
   0:	40 0d 00 00 e8 6f    	rex or $0x6fe80000,%eax
   6:	3f                   	(bad)
   7:	de 00                	fiadds (%rax)
   9:	85 c0                	test   %eax,%eax
   b:	0f 85 c6 06 00 00    	jne    0x6d7
  11:	49 8d bc 24 88 04 00 	lea    0x488(%r12),%rdi
  18:	00 
  19:	48 b8 00 00 00 00 00 	movabs $0xdffffc0000000000,%rax
  20:	fc ff df 
  23:	48 89 fa             	mov    %rdi,%rdx
  26:	48 c1 ea 03          	shr    $0x3,%rdx
  2a:*	0f b6 04 02          	movzbl (%rdx,%rax,1),%eax		<-- trapping instruction
  2e:	84 c0                	test   %al,%al
  30:	74 08                	je     0x3a
  32:	3c 03                	cmp    $0x3,%al
  34:	0f 8e b6 0a 00 00    	jle    0xaf0
  3a:	41                   	rex.B
  3b:	3b                   	.byte 0x3b
  3c:	ac                   	lods   %ds:(%rsi),%al
  3d:	24 88                	and    $0x88,%al
  3f:	04                   	.byte 0x4

Code starting with the faulting instruction
===========================================
   0:	0f b6 04 02          	movzbl (%rdx,%rax,1),%eax
   4:	84 c0                	test   %al,%al
   6:	74 08                	je     0x10
   8:	3c 03                	cmp    $0x3,%al
   a:	0f 8e b6 0a 00 00    	jle    0xac6
  10:	41                   	rex.B
  11:	3b                   	.byte 0x3b
  12:	ac                   	lods   %ds:(%rsi),%al
  13:	24 88                	and    $0x88,%al
  15:	04                   	.byte 0x4
[ 5413.202327][    C2] RSP: 0018:ffffc90000218a18 EFLAGS: 00010202
[ 5413.202564][    C2] RAX: dffffc0000000000 RBX: ffff88800d6ca000 RCX: 1ffff92000043152
[ 5413.202842][    C2] RDX: 0000000000000091 RSI: ffffffff8e856840 RDI: 0000000000000488
[ 5413.203112][    C2] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
[ 5413.203378][    C2] R10: ffffc90000218e90 R11: ffff88806593a530 R12: 0000000000000000
[ 5413.203644][    C2] R13: ffffc90000218bc8 R14: 0000000000000040 R15: ffffc90000218bc8
[ 5413.203939][    C2] FS:  0000000000000000(0000) GS:ffff8880d42a1000(0000) knlGS:0000000000000000
[ 5413.204266][    C2] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 5413.204506][    C2] CR2: 00007f5e17324000 CR3: 0000000072948001 CR4: 0000000000772ef0
[ 5413.204791][    C2] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 5413.205076][    C2] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 5413.205365][    C2] PKRU: 55555554
[ 5413.205511][    C2] Call Trace:
[ 5413.205661][    C2]  <IRQ>
[ 5413.205760][ C2] ? kmem_cache_free (mm/slub.c:4642 mm/slub.c:4744) 
[ 5413.205959][ C2] ? ip6_mc_input (net/ipv6/ip6_input.c:594) 
[ 5413.206154][ C2] ? __pfx_veth_xdp_rcv (drivers/net/veth.c:902) 
[ 5413.206336][ C2] ? __pfx_ip6_mc_input (net/ipv6/ip6_input.c:501) 
[ 5413.206527][ C2] ? ip6_rcv_core (./include/linux/skbuff.h:3307 net/ipv6/ip6_input.c:290) 
[ 5413.206717][ C2] veth_poll (drivers/net/veth.c:981) 
[ 5413.206871][ C2] ? __pfx_veth_poll (drivers/net/veth.c:969) 
[ 5413.207059][ C2] ? find_held_lock (kernel/locking/lockdep.c:5353) 
[ 5413.207246][ C2] ? process_backlog (net/core/dev.c:6474) 
[ 5413.207455][ C2] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 5413.207648][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 5413.207840][ C2] ? _raw_spin_unlock_irq (./arch/x86/include/asm/irqflags.h:42 ./arch/x86/include/asm/irqflags.h:119 ./include/linux/spinlock_api_smp.h:159 kernel/locking/spinlock.c:202) 
[ 5413.208035][ C2] ? _raw_spin_unlock_irq (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:160 kernel/locking/spinlock.c:202) 
[ 5413.208226][ C2] ? process_backlog (net/core/dev.c:6474) 
[ 5413.208421][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 5413.208620][ C2] __napi_poll.constprop.0 (net/core/dev.c:7414) 
[ 5413.208804][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:745) 
[ 5413.209016][ C2] net_rx_action (net/core/dev.c:7478 net/core/dev.c:7605) 
[ 5413.209222][ C2] ? __pfx_net_rx_action (net/core/dev.c:7567) 
[ 5413.209427][ C2] ? run_timer_softirq (kernel/time/timer.c:2404) 
[ 5413.209617][ C2] ? __lock_release (kernel/locking/lockdep.c:5539) 
[ 5413.209806][ C2] handle_softirqs (kernel/softirq.c:580) 
[ 5413.209996][ C2] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 5413.210184][ C2] irq_exit_rcu (kernel/softirq.c:698) 
[ 5413.210328][ C2] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1050 arch/x86/kernel/apic/apic.c:1050) 
[ 5413.210515][    C2]  </IRQ>
[ 5413.210619][    C2]  <TASK>
[ 5413.210716][ C2] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 5413.210954][ C2] RIP: 0010:pv_native_safe_halt (arch/x86/kernel/paravirt.c:82) 
[ 5413.211151][ C2] Code: a2 d0 00 e9 03 55 02 00 0f 1f 00 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 90 f3 0f 1e fa 66 90 0f 00 2d 63 a7 22 00 fb f4 <c3> cc cc cc cc 66 2e 0f 1f 84 00 00 00 00 00 66 90 90 90 90 90 90
All code
========
   0:	a2 d0 00 e9 03 55 02 	movabs %al,0xf00025503e900d0
   7:	00 0f 
   9:	1f                   	(bad)
   a:	00 90 90 90 90 90    	add    %dl,-0x6f6f6f70(%rax)
  10:	90                   	nop
  11:	90                   	nop
  12:	90                   	nop
  13:	90                   	nop
  14:	90                   	nop
  15:	90                   	nop
  16:	90                   	nop
  17:	90                   	nop
  18:	90                   	nop
  19:	90                   	nop
  1a:	90                   	nop
  1b:	f3 0f 1e fa          	endbr64
  1f:	66 90                	xchg   %ax,%ax
  21:	0f 00 2d 63 a7 22 00 	verw   0x22a763(%rip)        # 0x22a78b
  28:	fb                   	sti
  29:	f4                   	hlt
  2a:*	c3                   	ret		<-- trapping instruction
  2b:	cc                   	int3
  2c:	cc                   	int3
  2d:	cc                   	int3
  2e:	cc                   	int3
  2f:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
  36:	00 00 00 
  39:	66 90                	xchg   %ax,%ax
  3b:	90                   	nop
  3c:	90                   	nop
  3d:	90                   	nop
  3e:	90                   	nop
  3f:	90                   	nop

Code starting with the faulting instruction
===========================================
   0:	c3                   	ret
   1:	cc                   	int3
   2:	cc                   	int3
   3:	cc                   	int3
   4:	cc                   	int3
   5:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
   c:	00 00 00 
   f:	66 90                	xchg   %ax,%ax
  11:	90                   	nop
  12:	90                   	nop
  13:	90                   	nop
  14:	90                   	nop
  15:	90                   	nop
[ 5413.211827][    C2] RSP: 0018:ffffc90000147de8 EFLAGS: 00000246
[ 5413.212065][    C2] RAX: 0000000005ff6b4d RBX: 1ffff92000028fc1 RCX: ffffffff8e4695f9
[ 5413.212345][    C2] RDX: 0000000000000000 RSI: ffffffff8f1158c2 RDI: ffffffff8e8568c0
[ 5413.212624][    C2] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed100cb266fa
[ 5413.212924][    C2] R10: ffff8880659337d3 R11: ffffffff8f811288 R12: 0000000000000000
[ 5413.213213][    C2] R13: ffff888001b62300 R14: dffffc0000000000 R15: 0000000000000000
[ 5413.213494][ C2] ? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:146) 
[ 5413.213735][ C2] default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:743) 
[ 5413.213885][ C2] default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 5413.214075][ C2] cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 5413.214270][ C2] ? __pfx_cpuidle_idle_call (kernel/sched/idle.c:168) 
[ 5413.214456][ C2] ? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:60) 
[ 5413.214646][ C2] do_idle (kernel/sched/idle.c:325) 
[ 5413.214786][ C2] cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 5413.214969][ C2] start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 5413.215152][ C2] ? __pfx_start_secondary (arch/x86/kernel/smpboot.c:233) 


Finger prints:
veth_xdp_rcv:veth_poll:net_rx_action:handle_softirqs:__irq_exit_rcu