======================================
|
| WAIT TIMEOUT stdout
| [ 5266.454744][    C2] Oops: general protection fault, probably for non-canonical address 0xdffffc0000000091: 0000 [#1] SMP KASAN NOPTI
| [ 5266.455185][    C2] KASAN: null-ptr-deref in range [0x0000000000000488-0x000000000000048f]
[ 5266.455765][    C2] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[ 5266.455990][ C2] RIP: 0010:veth_xdp_rcv (./include/linux/netdevice.h:2637 (discriminator 13) drivers/net/veth.c:912 (discriminator 13)) 
[ 5266.456184][ C2] Code: 40 0d 00 00 e8 3f ce dd 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 3f    	rex or $0x3fe80000,%eax
   6:	ce                   	(bad)
   7:	dd 00                	fldl   (%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
[ 5266.456809][    C2] RSP: 0018:ffffc90000218a20 EFLAGS: 00010202
[ 5266.457039][    C2] RAX: dffffc0000000000 RBX: ffff888011ffa000 RCX: 1ffff92000043153
[ 5266.457316][    C2] RDX: 0000000000000091 RSI: ffffffff9d0538c0 RDI: 0000000000000488
[ 5266.457590][    C2] RBP: 0000000000000000 R08: 0000000000000000 R09: 0000000000000000
[ 5266.457866][    C2] R10: ffffc90000218e90 R11: 0000000000000000 R12: 0000000000000000
[ 5266.458138][    C2] R13: ffffc90000218bd0 R14: 0000000000000040 R15: ffffc90000218bd0
[ 5266.458425][    C2] FS:  0000000000000000(0000) GS:ffff8880cd0c2000(0000) knlGS:0000000000000000
[ 5266.458749][    C2] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[ 5266.458986][    C2] CR2: 0000557e47216dec CR3: 000000001ff48003 CR4: 0000000000772ef0
[ 5266.459261][    C2] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[ 5266.459537][    C2] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[ 5266.459809][    C2] PKRU: 55555554
[ 5266.459950][    C2] Call Trace:
[ 5266.460089][    C2]  <IRQ>
[ 5266.460190][ C2] ? clockevents_program_event (kernel/time/clockevents.c:326) 
[ 5266.460381][ C2] ? find_held_lock (kernel/locking/lockdep.c:5348) 
[ 5266.460563][ C2] ? __pfx_veth_xdp_rcv (drivers/net/veth.c:902) 
[ 5266.460744][ C2] ? mark_held_locks (kernel/locking/lockdep.c:4326) 
[ 5266.460930][ C2] ? _raw_spin_unlock_irqrestore (./include/linux/spinlock_api_smp.h:151 kernel/locking/spinlock.c:194) 
[ 5266.461159][ C2] ? lockdep_hardirqs_on (kernel/locking/lockdep.c:4473) 
[ 5266.461343][ C2] ? _raw_spin_unlock_irqrestore (./arch/x86/include/asm/preempt.h:104 ./include/linux/spinlock_api_smp.h:152 kernel/locking/spinlock.c:194) 
[ 5266.461567][ C2] ? napi_complete_done (./include/linux/hrtimer.h:264 net/core/dev.c:6611) 
[ 5266.461754][ C2] ? __pfx_napi_complete_done (net/core/dev.c:6547) 
[ 5266.461942][ C2] ? __pfx_napi_complete_done (net/core/dev.c:6547) 
[ 5266.462126][ C2] ? validate_chain (kernel/locking/lockdep.c:3802 kernel/locking/lockdep.c:3822 kernel/locking/lockdep.c:3877) 
[ 5266.462311][ C2] veth_poll (drivers/net/veth.c:981) 
[ 5266.462451][ C2] ? __pfx_veth_poll (drivers/net/veth.c:969) 
[ 5266.462638][ C2] ? validate_chain (kernel/locking/lockdep.c:3802 kernel/locking/lockdep.c:3822 kernel/locking/lockdep.c:3877) 
[ 5266.462821][ C2] ? __lock_acquire (kernel/locking/lockdep.c:5235) 
[ 5266.463009][ C2] ? rcu_read_lock_any_held (kernel/rcu/update.c:386 kernel/rcu/update.c:380) 
[ 5266.463194][ C2] ? validate_chain (kernel/locking/lockdep.c:3802 kernel/locking/lockdep.c:3822 kernel/locking/lockdep.c:3877) 
[ 5266.463377][ C2] ? __lock_acquire (kernel/locking/lockdep.c:5235) 
[ 5266.463564][ C2] __napi_poll.constprop.0 (net/core/dev.c:7413) 
[ 5266.463745][ C2] ? rcu_is_watching (./include/linux/context_tracking.h:128 kernel/rcu/tree.c:736) 
[ 5266.463928][ C2] net_rx_action (net/core/dev.c:7477 net/core/dev.c:7599) 
[ 5266.464114][ C2] ? __pfx_net_rx_action (net/core/dev.c:7561) 
[ 5266.464303][ C2] ? kvm_clock_get_cycles (./arch/x86/include/asm/preempt.h:95 arch/x86/kernel/kvmclock.c:80 arch/x86/kernel/kvmclock.c:86) 
[ 5266.464486][ C2] ? ktime_get (kernel/time/timekeeping.c:226 (discriminator 4) kernel/time/timekeeping.c:335 (discriminator 4) kernel/time/timekeeping.c:752 (discriminator 4)) 
[ 5266.464627][ C2] ? clockevents_program_event (kernel/time/clockevents.c:334 (discriminator 3)) 
[ 5266.464857][ C2] handle_softirqs (kernel/softirq.c:579) 
[ 5266.465040][ C2] __irq_exit_rcu (kernel/softirq.c:614 kernel/softirq.c:453 kernel/softirq.c:680) 
[ 5266.465221][ C2] irq_exit_rcu (kernel/softirq.c:698) 
[ 5266.465358][ C2] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1049 arch/x86/kernel/apic/apic.c:1049) 
[ 5266.465542][    C2]  </IRQ>
[ 5266.465632][    C2]  <TASK>
[ 5266.465721][ C2] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[ 5266.465949][ C2] RIP: 0010:pv_native_safe_halt (arch/x86/kernel/paravirt.c:81) 
[ 5266.466137][ C2] Code: 9f d3 00 c3 cc cc cc cc 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 83 30 26 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:	9f                   	lahf
   1:	d3 00                	roll   %cl,(%rax)
   3:	c3                   	ret
   4:	cc                   	int3
   5:	cc                   	int3
   6:	cc                   	int3
   7:	cc                   	int3
   8:	0f 1f 00             	nopl   (%rax)
   b:	90                   	nop
   c:	90                   	nop
   d:	90                   	nop
   e:	90                   	nop
   f:	90                   	nop
  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 83 30 26 00 	verw   0x263083(%rip)        # 0x2630ab
  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
[ 5266.466794][    C2] RSP: 0018:ffffc90000147de8 EFLAGS: 00000246
[ 5266.467026][    C2] RAX: 0000000003323977 RBX: 1ffff92000028fc1 RCX: ffffffff9cc2fa39
[ 5266.467305][    C2] RDX: 0000000000000000 RSI: ffffffff9d90c5d6 RDI: ffffffff9d053940
[ 5266.467577][    C2] RBP: 0000000000000000 R08: 0000000000000001 R09: ffffed100d9e667a
[ 5266.467859][    C2] R10: ffff88806cf333d3 R11: 0000000000000000 R12: 0000000000000000
[ 5266.468133][    C2] R13: ffff888001b1a340 R14: dffffc0000000000 R15: 0000000000000000
[ 5266.468408][ C2] ? ct_kernel_exit.constprop.0 (kernel/context_tracking.c:146) 
[ 5266.468637][ C2] default_idle (./arch/x86/include/asm/paravirt.h:107 arch/x86/kernel/process.c:748) 
[ 5266.468774][ C2] default_idle_call (./include/linux/cpuidle.h:143 kernel/sched/idle.c:118) 
[ 5266.468955][ C2] cpuidle_idle_call (kernel/sched/idle.c:186) 
[ 5266.469145][ C2] ? __pfx_cpuidle_idle_call (kernel/sched/idle.c:168) 
[ 5266.469329][ C2] ? tsc_verify_tsc_adjust (arch/x86/kernel/tsc_sync.c:59) 
[ 5266.469512][ C2] do_idle (kernel/sched/idle.c:325) 
[ 5266.469652][ C2] cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[ 5266.469836][ C2] start_secondary (arch/x86/kernel/smpboot.c:203 arch/x86/kernel/smpboot.c:283) 
[ 5266.470018][ 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