======================================
| xx__-> [    3.306586] ip (569) used greatest stack depth: 12248 bytes left
| [    3.357094] ------------[ cut here ]------------
| [    3.357209] WARNING: CPU: 2 PID: 0 at net/ipv4/af_inet.c:153 inet_sock_destruct (net/ipv4/af_inet.c:153 (discriminator 1)) 
| [    3.357306] Modules linked in:
[    3.357517] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    3.357594] RIP: 0010:inet_sock_destruct (net/ipv4/af_inet.c:153 (discriminator 1)) 
[ 3.357677] Code: e9 e1 62 4c ff 4c 89 e6 5b 48 c7 c7 28 6c 77 98 41 5c e9 cf 62 4c ff 90 0f 0b 90 eb 81 90 0f 0b 90 eb 93 90 0f 0b 90 eb 81 90 <0f> 0b 90 e9 60 ff ff ff 0f 1f 40 00 90 90 90 90 90 90 90 90 90 90
All code
========
   0:	e9 e1 62 4c ff       	jmp    0xffffffffff4c62e6
   5:	4c 89 e6             	mov    %r12,%rsi
   8:	5b                   	pop    %rbx
   9:	48 c7 c7 28 6c 77 98 	mov    $0xffffffff98776c28,%rdi
  10:	41 5c                	pop    %r12
  12:	e9 cf 62 4c ff       	jmp    0xffffffffff4c62e6
  17:	90                   	nop
  18:	0f 0b                	ud2
  1a:	90                   	nop
  1b:	eb 81                	jmp    0xffffffffffffff9e
  1d:	90                   	nop
  1e:	0f 0b                	ud2
  20:	90                   	nop
  21:	eb 93                	jmp    0xffffffffffffffb6
  23:	90                   	nop
  24:	0f 0b                	ud2
  26:	90                   	nop
  27:	eb 81                	jmp    0xffffffffffffffaa
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	e9 60 ff ff ff       	jmp    0xffffffffffffff92
  32:	0f 1f 40 00          	nopl   0x0(%rax)
  36:	90                   	nop
  37:	90                   	nop
  38:	90                   	nop
  39:	90                   	nop
  3a:	90                   	nop
  3b:	90                   	nop
  3c:	90                   	nop
  3d:	90                   	nop
  3e:	90                   	nop
  3f:	90                   	nop

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	e9 60 ff ff ff       	jmp    0xffffffffffffff68
   8:	0f 1f 40 00          	nopl   0x0(%rax)
   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
[    3.357862] RSP: 0018:ffffb62800110ee0 EFLAGS: 00010206
[    3.357932] RAX: 0000000000000009 RBX: ffffa02481e01290 RCX: 0000000000000001
[    3.358039] RDX: 0000000000000ff7 RSI: 0000000000000ff7 RDI: ffffa02481e01200
[    3.358135] RBP: ffffa02484b50000 R08: ffffa02481e014d8 R09: ffffffff973ea700
[    3.358246] R10: ffffa02482f5dd00 R11: 0000000000000001 R12: ffffa02481e01200
[    3.358337] R13: 000000000000003f R14: ffffa024bed2b438 R15: 0000000000000000
[    3.358453] FS:  0000000000000000(0000) GS:ffffa0252545c000(0000) knlGS:0000000000000000
[    3.358544] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    3.358623] CR2: 00007f8fdd42f000 CR3: 0000000029648004 CR4: 0000000000772ef0
[    3.358720] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[    3.358807] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[    3.358896] PKRU: 55555554
[    3.358933] Call Trace:
[    3.358976]  <IRQ>
[    3.359012] ? __warn (kernel/panic.c:748) 
[    3.359066] ? inet_sock_destruct (net/ipv4/af_inet.c:153 (discriminator 1)) 
[    3.359123] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[    3.359169] ? inet_sock_destruct (net/ipv4/af_inet.c:153 (discriminator 1)) 
[    3.359226] ? handle_bug (arch/x86/kernel/traps.c:337) 
[    3.359273] ? exc_invalid_op (arch/x86/kernel/traps.c:391 (discriminator 1)) 
[    3.359337] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[    3.359383] ? rcu_core (kernel/rcu/tree.c:2556 kernel/rcu/tree.c:2824) 
[    3.359436] ? inet_sock_destruct (net/ipv4/af_inet.c:153 (discriminator 1)) 
[    3.359496] __sk_destruct (net/core/sock.c:2293) 
[    3.359555] rcu_core (kernel/rcu/tree.c:2568 kernel/rcu/tree.c:2824) 
[    3.359613] ? rcu_core (kernel/rcu/tree.c:2494 kernel/rcu/tree.c:2824) 
[    3.359679] handle_softirqs (kernel/softirq.c:561) 
[    3.359746] irq_exit_rcu (kernel/softirq.c:596 kernel/softirq.c:435 kernel/softirq.c:662 kernel/softirq.c:678) 
[    3.359822] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1049 arch/x86/kernel/apic/apic.c:1049) 
[    3.359901]  </IRQ>
[    3.359973]  <TASK>
[    3.360024] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[    3.360089] RIP: 0010:default_idle (./arch/x86/include/asm/irqflags.h:37 ./arch/x86/include/asm/irqflags.h:92 arch/x86/kernel/process.c:749) 
[ 3.360147] Code: 4c 01 c7 4c 29 c2 e9 6e ff ff ff 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 23 42 19 00 fb f4 <fa> c3 cc cc cc cc 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90
All code
========
   0:	4c 01 c7             	add    %r8,%rdi
   3:	4c 29 c2             	sub    %r8,%rdx
   6:	e9 6e ff ff ff       	jmp    0xffffffffffffff79
   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 23 42 19 00 	verw   0x194223(%rip)        # 0x19424b
  28:	fb                   	sti
  29:	f4                   	hlt
  2a:*	fa                   	cli		<-- trapping instruction
  2b:	c3                   	ret
  2c:	cc                   	int3
  2d:	cc                   	int3
  2e:	cc                   	int3
  2f:	cc                   	int3
  30:	66 66 2e 0f 1f 84 00 	data16 cs nopw 0x0(%rax,%rax,1)
  37:	00 00 00 00 
  3b:	90                   	nop
  3c:	90                   	nop
  3d:	90                   	nop
  3e:	90                   	nop
  3f:	90                   	nop

Code starting with the faulting instruction
===========================================
   0:	fa                   	cli
   1:	c3                   	ret
   2:	cc                   	int3
   3:	cc                   	int3
   4:	cc                   	int3
   5:	cc                   	int3
   6:	66 66 2e 0f 1f 84 00 	data16 cs nopw 0x0(%rax,%rax,1)
   d:	00 00 00 00 
  11:	90                   	nop
  12:	90                   	nop
  13:	90                   	nop
  14:	90                   	nop
  15:	90                   	nop
[    3.360299] RSP: 0018:ffffb628000a7ee8 EFLAGS: 00000242
[    3.360354] RAX: ffffa0252545c000 RBX: ffffa02481305d00 RCX: 0000000000000000
[    3.360426] RDX: 0000000000000002 RSI: ffffffff987952e6 RDI: 0000000000030244
[    3.360506] RBP: 0000000000000002 R08: 0000000000030244 R09: 0000000000000001
[    3.360590] R10: 00000000fffb78e6 R11: 0000000000000000 R12: 0000000000000000
[    3.360665] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
[    3.360739] default_idle_call (./include/linux/cpuidle.h:144 kernel/sched/idle.c:118) 
[    3.360786] do_idle (kernel/sched/idle.c:186 kernel/sched/idle.c:325) 
[    3.360835] cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[    3.360881] start_secondary (arch/x86/kernel/smpboot.c:315) 
[    3.360936] common_startup_64 (arch/x86/kernel/head_64.S:419) 
| [    3.361151] ------------[ cut here ]------------
| [    3.361234] WARNING: CPU: 2 PID: 0 at net/ipv4/af_inet.c:156 inet_sock_destruct (net/ipv4/af_inet.c:156 (discriminator 1)) 
| [    3.361333] Modules linked in:
| [    3.361503] Tainted: [W]=WARN
[    3.361568] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    3.361648] RIP: 0010:inet_sock_destruct (net/ipv4/af_inet.c:156 (discriminator 1)) 
[ 3.361718] Code: 89 e2 5b 48 c7 c7 f0 6b 77 98 41 5c e9 e1 62 4c ff 4c 89 e6 5b 48 c7 c7 28 6c 77 98 41 5c e9 cf 62 4c ff 90 0f 0b 90 eb 81 90 <0f> 0b 90 eb 93 90 0f 0b 90 eb 81 90 0f 0b 90 e9 60 ff ff ff 0f 1f
All code
========
   0:	89 e2                	mov    %esp,%edx
   2:	5b                   	pop    %rbx
   3:	48 c7 c7 f0 6b 77 98 	mov    $0xffffffff98776bf0,%rdi
   a:	41 5c                	pop    %r12
   c:	e9 e1 62 4c ff       	jmp    0xffffffffff4c62f2
  11:	4c 89 e6             	mov    %r12,%rsi
  14:	5b                   	pop    %rbx
  15:	48 c7 c7 28 6c 77 98 	mov    $0xffffffff98776c28,%rdi
  1c:	41 5c                	pop    %r12
  1e:	e9 cf 62 4c ff       	jmp    0xffffffffff4c62f2
  23:	90                   	nop
  24:	0f 0b                	ud2
  26:	90                   	nop
  27:	eb 81                	jmp    0xffffffffffffffaa
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	eb 93                	jmp    0xffffffffffffffc2
  2f:	90                   	nop
  30:	0f 0b                	ud2
  32:	90                   	nop
  33:	eb 81                	jmp    0xffffffffffffffb6
  35:	90                   	nop
  36:	0f 0b                	ud2
  38:	90                   	nop
  39:	e9 60 ff ff ff       	jmp    0xffffffffffffff9e
  3e:	0f                   	.byte 0xf
  3f:	1f                   	(bad)

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	eb 93                	jmp    0xffffffffffffff98
   5:	90                   	nop
   6:	0f 0b                	ud2
   8:	90                   	nop
   9:	eb 81                	jmp    0xffffffffffffff8c
   b:	90                   	nop
   c:	0f 0b                	ud2
   e:	90                   	nop
   f:	e9 60 ff ff ff       	jmp    0xffffffffffffff74
  14:	0f                   	.byte 0xf
  15:	1f                   	(bad)
[    3.361896] RSP: 0018:ffffb62800110ee0 EFLAGS: 00010202
[    3.361964] RAX: 0000000000000ff7 RBX: ffffa02481e01290 RCX: 0000000000000001
[    3.362051] RDX: 0000000000000000 RSI: 0000000000000ff7 RDI: ffffa02481e01200
[    3.362146] RBP: ffffa02484b50000 R08: ffffa02481e014d8 R09: ffffffff973ea700
[    3.362237] R10: ffffa02482f5dd00 R11: 0000000000000001 R12: ffffa02481e01200
[    3.362330] R13: 000000000000003f R14: ffffa024bed2b438 R15: 0000000000000000
[    3.362422] FS:  0000000000000000(0000) GS:ffffa0252545c000(0000) knlGS:0000000000000000
[    3.362514] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    3.362593] CR2: 00007f8fdd42f000 CR3: 0000000029648004 CR4: 0000000000772ef0
[    3.362687] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[    3.362767] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[    3.362846] PKRU: 55555554
[    3.362936] Call Trace:
[    3.362977]  <IRQ>
[    3.363017] ? __warn (kernel/panic.c:748) 
[    3.363074] ? inet_sock_destruct (net/ipv4/af_inet.c:156 (discriminator 1)) 
[    3.363143] ? report_bug (lib/bug.c:201 lib/bug.c:219) 
[    3.363202] ? inet_sock_destruct (net/ipv4/af_inet.c:156 (discriminator 1)) 
[    3.363272] ? handle_bug (arch/x86/kernel/traps.c:337) 
[    3.363329] ? exc_invalid_op (arch/x86/kernel/traps.c:391 (discriminator 1)) 
[    3.363389] ? asm_exc_invalid_op (./arch/x86/include/asm/idtentry.h:621) 
[    3.363445] ? rcu_core (kernel/rcu/tree.c:2556 kernel/rcu/tree.c:2824) 
[    3.363502] ? inet_sock_destruct (net/ipv4/af_inet.c:156 (discriminator 1)) 
[    3.363571] __sk_destruct (net/core/sock.c:2293) 
[    3.363646] rcu_core (kernel/rcu/tree.c:2568 kernel/rcu/tree.c:2824) 
[    3.363699] ? rcu_core (kernel/rcu/tree.c:2494 kernel/rcu/tree.c:2824) 
[    3.363754] handle_softirqs (kernel/softirq.c:561) 
[    3.363806] irq_exit_rcu (kernel/softirq.c:596 kernel/softirq.c:435 kernel/softirq.c:662 kernel/softirq.c:678) 
[    3.363856] sysvec_apic_timer_interrupt (arch/x86/kernel/apic/apic.c:1049 arch/x86/kernel/apic/apic.c:1049) 
[    3.363929]  </IRQ>
[    3.363970]  <TASK>
[    3.364016] asm_sysvec_apic_timer_interrupt (./arch/x86/include/asm/idtentry.h:702) 
[    3.364089] RIP: 0010:default_idle (./arch/x86/include/asm/irqflags.h:37 ./arch/x86/include/asm/irqflags.h:92 arch/x86/kernel/process.c:749) 
[ 3.364139] Code: 4c 01 c7 4c 29 c2 e9 6e ff ff ff 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 23 42 19 00 fb f4 <fa> c3 cc cc cc cc 66 66 2e 0f 1f 84 00 00 00 00 00 90 90 90 90 90
All code
========
   0:	4c 01 c7             	add    %r8,%rdi
   3:	4c 29 c2             	sub    %r8,%rdx
   6:	e9 6e ff ff ff       	jmp    0xffffffffffffff79
   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 23 42 19 00 	verw   0x194223(%rip)        # 0x19424b
  28:	fb                   	sti
  29:	f4                   	hlt
  2a:*	fa                   	cli		<-- trapping instruction
  2b:	c3                   	ret
  2c:	cc                   	int3
  2d:	cc                   	int3
  2e:	cc                   	int3
  2f:	cc                   	int3
  30:	66 66 2e 0f 1f 84 00 	data16 cs nopw 0x0(%rax,%rax,1)
  37:	00 00 00 00 
  3b:	90                   	nop
  3c:	90                   	nop
  3d:	90                   	nop
  3e:	90                   	nop
  3f:	90                   	nop

Code starting with the faulting instruction
===========================================
   0:	fa                   	cli
   1:	c3                   	ret
   2:	cc                   	int3
   3:	cc                   	int3
   4:	cc                   	int3
   5:	cc                   	int3
   6:	66 66 2e 0f 1f 84 00 	data16 cs nopw 0x0(%rax,%rax,1)
   d:	00 00 00 00 
  11:	90                   	nop
  12:	90                   	nop
  13:	90                   	nop
  14:	90                   	nop
  15:	90                   	nop
[    3.364327] RSP: 0018:ffffb628000a7ee8 EFLAGS: 00000242
[    3.364399] RAX: ffffa0252545c000 RBX: ffffa02481305d00 RCX: 0000000000000000
[    3.364533] RDX: 0000000000000002 RSI: ffffffff987952e6 RDI: 0000000000030244
[    3.364612] RBP: 0000000000000002 R08: 0000000000030244 R09: 0000000000000001
[    3.364704] R10: 00000000fffb78e6 R11: 0000000000000000 R12: 0000000000000000
[    3.364796] R13: 0000000000000000 R14: 0000000000000000 R15: 0000000000000000
[    3.364884] default_idle_call (./include/linux/cpuidle.h:144 kernel/sched/idle.c:118) 
[    3.364934] do_idle (kernel/sched/idle.c:186 kernel/sched/idle.c:325) 
[    3.364987] cpu_startup_entry (kernel/sched/idle.c:422 (discriminator 1)) 
[    3.365039] start_secondary (arch/x86/kernel/smpboot.c:315) 


Finger prints:
inet_sock_destruct:__sk_destruct:rcu_core:handle_softirqs:irq_exit_rcu