On Tue, 16 Apr 2019, Andrew Cooper wrote:
> From the log:
>
> traps: modprobe[48] trap invalid opcode ip:7f797dc7bb95 sp:7ffe3099cdb8 erro
> r:0 in ld-2.29.so[7f797dc61000+21000]
>
>
> Can you disassemble ld-2.29.so and find out what that instruction is? It is
> almost certainly a related factor.
I get lines like
[ 1.384356] traps: modprobe[36] trap invalid opcode ip:7f57448af179
sp:7fff8fc3a938 error:0 in ld-2.29.so[7f5744895000+20000]
I am guessing the right place to look in ld-2.29.so is
0x7f57448af179-0x7f57448950000-20000 = 86873 in which case I get
(gdb) x/10i 86873
0x15359 <_dl_close_worker+3593>: mov (%rsi,%rcx,8),%r8
0x1535d <_dl_close_worker+3597>: testb $0x20,0x31d(%r8)
0x15365 <_dl_close_worker+3605>: jne 0x15375
<_dl_close_worker+3621>
0x15367 <_dl_close_worker+3607>: cmp %ecx,%edx
0x15369 <_dl_close_worker+3609>: je 0x15372
<_dl_close_worker+3618>
0x1536b <_dl_close_worker+3611>: mov %edx,%r9d
0x1536e <_dl_close_worker+3614>: mov %r8,(%rsi,%r9,8)
0x15372 <_dl_close_worker+3618>: add $0x1,%edx
0x15375 <_dl_close_worker+3621>: add $0x1,%rcx
0x15379 <_dl_close_worker+3625>: cmp %ecx,%eax
Some more lines like this are
[ 1.571479] traps: modprobe[41] trap invalid opcode ip:7f3e3628d179
sp:7ffc86abbe08 error:0 in ld-2.29.so[7f3e36273000+20000]
[ 1.630562] traps: modprobe[43] trap invalid opcode ip:7f227b39a179
sp:7ffdfd943198 error:0 in ld-2.29.so[7f227b380000+20000]
which all seem to get to the same place. Is this useful or am I looking in
the wrong place?
Michael Young_______________________________________________
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