berto at igalia.com
Fri Mar 5 10:41:57 GMT 2021
More findings from the core dump:
Program terminated with signal SIGILL, Illegal instruction.
#0 0x00007f00eb999254 in wasm_entry ()
[Current thread is 1 (Thread 0x7f00e4913ac0 (LWP 4154))]
(gdb) layout asm
│0x7f00eb999254 <wasm_entry+56936> roundss $0x2,%xmm0,%xmm1 │
│0x7f00eb99925a <wasm_entry+56942> movsbq 0x1(%r13,%r8,1),%r9 │
│0x7f00eb999260 <wasm_entry+56948> movss %xmm1,0x0(%rbp,%r9,8) │
│0x7f00eb999267 <wasm_entry+56955> add $0x3,%r8 │
So here it is, the 'roundss' opcode was added in SSE4, which this CPU
does not support.
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