======================================
| xx__-> [    2.844727] netdevsim netdevsim1337 eni1337np1: renamed from eth0
| [    2.859958] netdevsim netdevsim5417 eni5417np1: renamed from eth0
| [    2.956044] rename_device (416) used greatest stack depth: 12824 bytes left
| [    3.109254] Oops: general protection fault, probably for non-canonical address 0x8b49f58948000000: 0000 [#1] PREEMPT SMP NOPTI
[    3.109474] Hardware name: Bochs Bochs, BIOS Bochs 01/01/2011
[    3.109539] RIP: 0010:full_proxy_write (fs/debugfs/file.c:394 (discriminator 6)) 
[ 3.109594] Code: f6 49 89 ce e8 b4 fd ff ff 4c 63 e0 4d 85 e4 75 29 48 8b 03 48 8b 14 24 48 85 c0 74 33 48 8b 40 20 48 89 ef 4c 89 f1 4c 89 ee <ff> d0 0f 1f 00 4c 89 ff 49 89 c4 e8 33 fd ff ff 48 83 c4 08 4c 89
All code
========
   0:	f6 49 89 ce          	testb  $0xce,-0x77(%rcx)
   4:	e8 b4 fd ff ff       	call   0xfffffffffffffdbd
   9:	4c 63 e0             	movslq %eax,%r12
   c:	4d 85 e4             	test   %r12,%r12
   f:	75 29                	jne    0x3a
  11:	48 8b 03             	mov    (%rbx),%rax
  14:	48 8b 14 24          	mov    (%rsp),%rdx
  18:	48 85 c0             	test   %rax,%rax
  1b:	74 33                	je     0x50
  1d:	48 8b 40 20          	mov    0x20(%rax),%rax
  21:	48 89 ef             	mov    %rbp,%rdi
  24:	4c 89 f1             	mov    %r14,%rcx
  27:	4c 89 ee             	mov    %r13,%rsi
  2a:*	ff d0                	call   *%rax		<-- trapping instruction
  2c:	0f 1f 00             	nopl   (%rax)
  2f:	4c 89 ff             	mov    %r15,%rdi
  32:	49 89 c4             	mov    %rax,%r12
  35:	e8 33 fd ff ff       	call   0xfffffffffffffd6d
  3a:	48 83 c4 08          	add    $0x8,%rsp
  3e:	4c                   	rex.WR
  3f:	89                   	.byte 0x89

Code starting with the faulting instruction
===========================================
   0:	ff d0                	call   *%rax
   2:	0f 1f 00             	nopl   (%rax)
   5:	4c 89 ff             	mov    %r15,%rdi
   8:	49 89 c4             	mov    %rax,%r12
   b:	e8 33 fd ff ff       	call   0xfffffffffffffd43
  10:	48 83 c4 08          	add    $0x8,%rsp
  14:	4c                   	rex.WR
  15:	89                   	.byte 0x89
[    3.109734] RSP: 0018:ffffad00404e7e38 EFLAGS: 00010286
[    3.109779] RAX: 8b49f58948000000 RBX: ffff8e8d46104d00 RCX: ffffad00404e7f08
[    3.109843] RDX: 0000000000000002 RSI: 0000556e51382d30 RDI: ffff8e8d41dc4a80
[    3.109907] RBP: ffff8e8d41dc4a80 R08: 0000000000000000 R09: 0000000000000000
[    3.109971] R10: 0000000000000000 R11: 0000000000000000 R12: 0000000000000000
[    3.110035] R13: 0000556e51382d30 R14: ffffad00404e7f08 R15: ffff8e8d416abe40
[    3.110102] FS:  00007f8a4bacb740(0000) GS:ffff8e8d7ec80000(0000) knlGS:0000000000000000
[    3.110169] CS:  0010 DS: 0000 ES: 0000 CR0: 0000000080050033
[    3.110222] CR2: 0000556e51382d30 CR3: 000000000543c002 CR4: 0000000000772ef0
[    3.110287] DR0: 0000000000000000 DR1: 0000000000000000 DR2: 0000000000000000
[    3.110350] DR3: 0000000000000000 DR6: 00000000fffe0ff0 DR7: 0000000000000400
[    3.110414] PKRU: 55555554
[    3.110440] Call Trace:
[    3.110461]  <TASK>
[    3.110487] ? die_addr (arch/x86/kernel/dumpstack.c:421 arch/x86/kernel/dumpstack.c:460) 
[    3.110525] ? exc_general_protection (arch/x86/kernel/traps.c:748 arch/x86/kernel/traps.c:693) 
[    3.110581] ? asm_exc_general_protection (./arch/x86/include/asm/idtentry.h:617) 
[    3.110626] ? full_proxy_write (fs/debugfs/file.c:394 (discriminator 6)) 
[    3.110662] ? full_proxy_write (fs/debugfs/file.c:394 (discriminator 6)) 
[    3.110698] vfs_write (fs/read_write.c:677) 
[    3.110735] ? handle_mm_fault (mm/memory.c:6213) 
[    3.110770] ksys_write (fs/read_write.c:731) 
[    3.110806] do_syscall_64 (arch/x86/entry/common.c:52 arch/x86/entry/common.c:83) 
[    3.110842] entry_SYSCALL_64_after_hwframe (arch/x86/entry/entry_64.S:130) 
[    3.110888] RIP: 0033:0x7f8a4bc0cb77
[ 3.110923] Code: 0b 00 f7 d8 64 89 02 48 c7 c0 ff ff ff ff eb b7 0f 1f 00 f3 0f 1e fa 64 8b 04 25 18 00 00 00 85 c0 75 10 b8 01 00 00 00 0f 05 <48> 3d 00 f0 ff ff 77 51 c3 48 83 ec 28 48 89 54 24 18 48 89 74 24
All code
========
   0:	0b 00                	or     (%rax),%eax
   2:	f7 d8                	neg    %eax
   4:	64 89 02             	mov    %eax,%fs:(%rdx)
   7:	48 c7 c0 ff ff ff ff 	mov    $0xffffffffffffffff,%rax
   e:	eb b7                	jmp    0xffffffffffffffc7
  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 01 00 00 00       	mov    $0x1,%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 28          	sub    $0x28,%rsp
  37:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  3c:	48                   	rex.W
  3d:	89                   	.byte 0x89
  3e:	74 24                	je     0x64

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 28          	sub    $0x28,%rsp
   d:	48 89 54 24 18       	mov    %rdx,0x18(%rsp)
  12:	48                   	rex.W
  13:	89                   	.byte 0x89
  14:	74 24                	je     0x3a
[    3.111063] RSP: 002b:00007ffd8884b6f8 EFLAGS: 00000246 ORIG_RAX: 0000000000000001
[    3.111128] RAX: ffffffffffffffda RBX: 0000000000000002 RCX: 00007f8a4bc0cb77
[    3.111191] RDX: 0000000000000002 RSI: 0000556e51382d30 RDI: 0000000000000001
[    3.111255] RBP: 0000556e51382d30 R08: 0000000000000000 R09: 00007f8a4bc7f4e0
[    3.111319] R10: 00007f8a4bc7f3e0 R11: 0000000000000246 R12: 0000000000000002


Finger prints:
full_proxy_write:vfs_write:ksys_write:do_syscall_64