Linus Torvalds writes: (Summary)
That is some _funky_ code, and yes, this may well be triggered by the
inline asm changes.
inline asm changes.
The code decodes to (after ignoring a few bytes at the beginning that were in the middle of an instruction)
were in the middle of an instruction)
0: 65 48 8b 04 25 80 d1 mov %gs:0xd180,%rax
7: 00 00
9: 48 8b 80 28 25 00 00 mov 0x2528(%rax),%rax
10: 48 83 e8 20 sub $0x20,%rax
14: 49 39 c7 cmp %rax,%r15
17: 77 34 ja 0x4d
19: 89 e0 mov %esp,%eax
1b: 4c 89 f7 mov %r14,%rdi
1e: 4c 89 fe mov %r15,%rsi
21: ba 20 00 00 00 mov $0x20,%edx
26: 89 c4 mov %eax,%esp
28:* e8 b3 52 05 00 callq 0x552e0 <-- trapping instruction 2d: 85 c0 test %eax,%eax
2f: 74 22 je 0x53
31: eb 1a jmp 0x4d
33: 4c 89 fa
inline asm changes.
The code decodes to (after ignoring a few bytes at the beginning that were in the middle of an instruction)
were in the middle of an instruction)
0: 65 48 8b 04 25 80 d1 mov %gs:0xd180,%rax
7: 00 00
9: 48 8b 80 28 25 00 00 mov 0x2528(%rax),%rax
10: 48 83 e8 20 sub $0x20,%rax
14: 49 39 c7 cmp %rax,%r15
17: 77 34 ja 0x4d
19: 89 e0 mov %esp,%eax
1b: 4c 89 f7 mov %r14,%rdi
1e: 4c 89 fe mov %r15,%rsi
21: ba 20 00 00 00 mov $0x20,%edx
26: 89 c4 mov %eax,%esp
28:* e8 b3 52 05 00 callq 0x552e0 <-- trapping instruction 2d: 85 c0 test %eax,%eax
2f: 74 22 je 0x53
31: eb 1a jmp 0x4d
33: 4c 89 fa