======================================
| [    6.711664] #PF: supervisor read access in kernel mode
| [    6.711704] #PF: error_code(0x0000) - not-present page
| [    6.711745] PGD bd24067 P4D bd24067 PUD bcfd067 PMD 0
| [    6.711788] Oops: Oops: 0000 [#1] SMP
[    6.711892] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    6.711941] RIP: 0010:ip_route_output_key_hash_rcu (net/ipv4/route.c:2663 net/ipv4/route.c:2871) 
[ 6.711997] Code: ff 49 8b 06 ba 05 00 00 00 48 8b 80 08 01 00 00 48 8b 80 10 04 00 00 e9 48 f9 ff ff e8 4e 55 81 ff e9 3f fc ff ff 49 8b 45 18 <48> 8b 40 58 48 89 c2 48 83 ca 01 49 89 54 24 10 48 3d e0 93 2e a6
All code
========
   0:	ff 49 8b             	decl   -0x75(%rcx)
   3:	06                   	(bad)
   4:	ba 05 00 00 00       	mov    $0x5,%edx
   9:	48 8b 80 08 01 00 00 	mov    0x108(%rax),%rax
  10:	48 8b 80 10 04 00 00 	mov    0x410(%rax),%rax
  17:	e9 48 f9 ff ff       	jmp    0xfffffffffffff964
  1c:	e8 4e 55 81 ff       	call   0xffffffffff81556f
  21:	e9 3f fc ff ff       	jmp    0xfffffffffffffc65
  26:	49 8b 45 18          	mov    0x18(%r13),%rax
  2a:*	48 8b 40 58          	mov    0x58(%rax),%rax		<-- trapping instruction
  2e:	48 89 c2             	mov    %rax,%rdx
  31:	48 83 ca 01          	or     $0x1,%rdx
  35:	49 89 54 24 10       	mov    %rdx,0x10(%r12)
  3a:	48 3d e0 93 2e a6    	cmp    $0xffffffffa62e93e0,%rax

Code starting with the faulting instruction
===========================================
   0:	48 8b 40 58          	mov    0x58(%rax),%rax
   4:	48 89 c2             	mov    %rax,%rdx
   7:	48 83 ca 01          	or     $0x1,%rdx
   b:	49 89 54 24 10       	mov    %rdx,0x10(%r12)
  10:	48 3d e0 93 2e a6    	cmp    $0xffffffffa62e93e0,%rax
[    6.712126] RSP: 0018:ffffaf834177fd58 EFLAGS: 00010246
[    6.712167] RAX: 0000000000000000 RBX: ffff9ecf432bb978 RCX: 0000000000000017
[    6.712226] RDX: 0000000000000000 RSI: ffffffffa748e5c4 RDI: 0000000000000016
[    6.712285] RBP: ffff9ecf47e09000 R08: 0000000000000000 R09: 0000000090000000
[    6.712344] R10: 0000000000000000 R11: 0000000000000003 R12: ffff9ecf4b9a00c0
[    6.712401] R13: ffffaf834177fdc0 R14: ffff9ecf42da6e00 R15: 0000000000000000
[    6.712460] FS:  00007f0fa2dea300(0000) GS:ffff9ecfd791f000(0000) knlGS:0000000000000000
[    6.712518] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    6.712567] CR2: 0000000000000058 CR3: 000000000bcde005 CR4: 0000000000772ef0
[    6.712626] PKRU: 55555554
[    6.712647] Call Trace:
[    6.712673]  <TASK>
[    6.712697] ip_route_output_flow (net/ipv4/route.c:2701 ./include/net/route.h:169 net/ipv4/route.c:2928) 
[    6.712733] __ip4_datagram_connect (./include/net/route.h:355 net/ipv4/datagram.c:49) 
[    6.712780] udp_connect (net/ipv4/udp.c:2153) 
[    6.712814] __sys_connect (./include/linux/file.h:62 ./include/linux/file.h:83 net/socket.c:2095) 
[    6.712849] ? sock_alloc_file (./include/linux/fs.h:3229 net/socket.c:486) 
[    6.712880] ? __sys_socket (net/socket.c:503 net/socket.c:1740) 
[    6.712915] __x64_sys_connect (net/socket.c:2111 net/socket.c:2108 net/socket.c:2108) 
[    6.712947] do_syscall_64 (arch/x86/entry/syscall_64.c:63 arch/x86/entry/syscall_64.c:94) 
[    6.712983] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[    6.713024] RIP: 0033:0x7f0fa3080d77
[ 6.713056] Code: 64 89 01 48 83 c8 ff c3 66 2e 0f 1f 84 00 00 00 00 00 90 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 2a 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 18 89 54 24 0c 48 89 34 24 89
All code
========
   0:	64 89 01             	mov    %eax,%fs:(%rcx)
   3:	48 83 c8 ff          	or     $0xffffffffffffffff,%rax
   7:	c3                   	ret
   8:	66 2e 0f 1f 84 00 00 	cs nopw 0x0(%rax,%rax,1)
   f:	00 00 00 
  12:	90                   	nop
  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 2a 00 00 00       	mov    $0x2a,%eax
  28:	0f 05                	syscall
  2a:*	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax		<-- trapping instruction
  30:	77 51                	ja     0x83
  32:	c3                   	ret
  33:	48 83 ec 18          	sub    $0x18,%rsp
  37:	89 54 24 0c          	mov    %edx,0xc(%rsp)
  3b:	48 89 34 24          	mov    %rsi,(%rsp)
  3f:	89                   	.byte 0x89

Code starting with the faulting instruction
===========================================
   0:	48 3d 00 f0 ff ff    	cmp    $0xfffffffffffff000,%rax
   6:	77 51                	ja     0x59
   8:	c3                   	ret
   9:	48 83 ec 18          	sub    $0x18,%rsp
   d:	89 54 24 0c          	mov    %edx,0xc(%rsp)
  11:	48 89 34 24          	mov    %rsi,(%rsp)
  15:	89                   	.byte 0x89
[    6.713186] RSP: 002b:00007ffcbcbe4d68 EFLAGS: 00000246 ORIG_RAX: 000000000000002a
[    6.713246] RAX: ffffffffffffffda RBX: 00007ffcbcbe79a8 RCX: 00007f0fa3080d77
[    6.713304] RDX: 0000000000000010 RSI: 00007ffcbcbe4dd0 RDI: 0000000000000007
[    6.713364] RBP: 00007ffcbcbe5420 R08: 00000000000000ff R09: 0000000000000000
[    6.713421] R10: 00007f0fa2f785a0 R11: 0000000000000246 R12: 00007ffcbcbe5778
[    6.713471] R13: 000000000040305a R14: 0000000000415dd0 R15: 00007f0fa31ec000
| [    6.714571] Voluntary context switch within RCU read-side critical section!
| [    6.714582] WARNING: CPU: 3 PID: 895 at kernel/rcu/tree_plugin.h:332 rcu_note_context_switch (kernel/rcu/tree_plugin.h:332 (discriminator 11)) 
| [    6.714701] Modules linked in:
| [    6.714807] Tainted: [D]=DIE
[    6.714838] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    6.714883] RIP: 0010:rcu_note_context_switch (kernel/rcu/tree_plugin.h:332 (discriminator 11)) 
[ 6.714925] Code: 00 00 00 be 01 00 00 00 48 89 ef e8 e9 e3 fe ff e9 43 fc ff ff c6 05 b3 0b 68 01 01 90 48 c7 c7 a0 d4 52 a6 e8 20 1e f6 ff 90 <0f> 0b 90 90 e9 b9 fb ff ff 80 7b 11 00 0f 84 40 fe ff ff 90 0f 0b
All code
========
   0:	00 00                	add    %al,(%rax)
   2:	00 be 01 00 00 00    	add    %bh,0x1(%rsi)
   8:	48 89 ef             	mov    %rbp,%rdi
   b:	e8 e9 e3 fe ff       	call   0xfffffffffffee3f9
  10:	e9 43 fc ff ff       	jmp    0xfffffffffffffc58
  15:	c6 05 b3 0b 68 01 01 	movb   $0x1,0x1680bb3(%rip)        # 0x1680bcf
  1c:	90                   	nop
  1d:	48 c7 c7 a0 d4 52 a6 	mov    $0xffffffffa652d4a0,%rdi
  24:	e8 20 1e f6 ff       	call   0xfffffffffff61e49
  29:	90                   	nop
  2a:*	0f 0b                	ud2		<-- trapping instruction
  2c:	90                   	nop
  2d:	90                   	nop
  2e:	e9 b9 fb ff ff       	jmp    0xfffffffffffffbec
  33:	80 7b 11 00          	cmpb   $0x0,0x11(%rbx)
  37:	0f 84 40 fe ff ff    	je     0xfffffffffffffe7d
  3d:	90                   	nop
  3e:	0f 0b                	ud2

Code starting with the faulting instruction
===========================================
   0:	0f 0b                	ud2
   2:	90                   	nop
   3:	90                   	nop
   4:	e9 b9 fb ff ff       	jmp    0xfffffffffffffbc2
   9:	80 7b 11 00          	cmpb   $0x0,0x11(%rbx)
   d:	0f 84 40 fe ff ff    	je     0xfffffffffffffe53
  13:	90                   	nop
  14:	0f 0b                	ud2
[    6.715050] RSP: 0018:ffffaf834177fcf0 EFLAGS: 00010082
[    6.715090] RAX: 0000000000000000 RBX: ffff9ecf7eda9340 RCX: 00000000ffffdfff
[    6.715147] RDX: 0000000000000000 RSI: 00000000ffffffea RDI: 0000000000000001
[    6.715200] RBP: ffff9ecf430edc00 R08: ffffffffa6d5b248 R09: 00000000ffffdfff
[    6.715259] R10: ffffffffa6c7b260 R11: ffffffffa6d2d888 R12: 0000000000000000
[    6.715318] R13: 0000000000000000 R14: ffff9ecf7eda85c0 R15: 0000000000000000
[    6.715373] FS:  0000000000000000(0000) GS:ffff9ecfd791f000(0000) knlGS:0000000000000000
[    6.715430] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    6.715478] CR2: 0000000000000058 CR3: 0000000009a46003 CR4: 0000000000772ef0
[    6.715538] PKRU: 55555554
[    6.715561] Call Trace:
[    6.715586]  <TASK>
[    6.715609] __schedule (./arch/x86/include/asm/preempt.h:80 kernel/sched/core.c:634 kernel/sched/sched.h:1519 kernel/sched/sched.h:1841 kernel/sched/core.c:6865) 
[    6.715642] schedule (./arch/x86/include/asm/preempt.h:85 kernel/sched/core.c:7044 kernel/sched/core.c:7058) 
[    6.715674] __lock_sock (./include/linux/spinlock.h:356 net/core/sock.c:3173) 
[    6.715707] ? housekeeping_test_cpu (kernel/sched/wait.c:402) 
[    6.715749] __lock_sock_fast (./include/linux/spinlock.h:396 net/core/sock.c:3788) 
[    6.715780] udp_destroy_sock (./include/net/sock.h:1703 net/ipv4/udp.c:2887) 
[    6.715814] sk_common_release (net/core/sock.c:3942) 
[    6.715845] inet_release (net/ipv4/af_inet.c:436) 
[    6.715878] __sock_release (net/socket.c:650) 
[    6.715909] sock_close (net/socket.c:1441) 
[    6.715941] __fput (fs/file_table.c:469) 
[    6.715977] task_work_run (./include/linux/sched.h:2070 (discriminator 1) kernel/task_work.c:229 (discriminator 1)) 
[    6.716014] do_exit (kernel/exit.c:962) 
[    6.716053] make_task_dead (kernel/exit.c:1050) 
[    6.716084] rewind_stack_and_make_dead (??:?) 
[    6.716126] RIP: 0033:0x7f0fa3080d77
[ 6.716159] Code: Unable to access opcode bytes at 0x7f0fa3080d4d.

Code starting with the faulting instruction
===========================================
[    6.716209] RSP: 002b:00007ffcbcbe4d68 EFLAGS: 00000246 ORIG_RAX: 000000000000002a
[    6.716267] RAX: ffffffffffffffda RBX: 00007ffcbcbe79a8 RCX: 00007f0fa3080d77
[    6.716327] RDX: 0000000000000010 RSI: 00007ffcbcbe4dd0 RDI: 0000000000000007
[    6.716385] RBP: 00007ffcbcbe5420 R08: 00000000000000ff R09: 0000000000000000
[    6.716442] R10: 00007f0fa2f785a0 R11: 0000000000000246 R12: 00007ffcbcbe5778


Finger prints:
ip_route_output_key_hash_rcu:ip_route_output_flow:__ip4_datagram_connect:udp_connect:__sys_connect
rcu_note_context_switch:__schedule:schedule:__lock_sock:__lock_sock_fast