Further debugging on IRC reveals that QEMU itself is not hanging, but
the guest code is looping infinitely, because QEMU doesn't implement the
AVX instruction set and isn't generating an undefined-instruction
exception either. So the %rdx output from the AVX insn is wrong and the
guest code never e
** Summary changed:
- qemu-user-x86-64 hangs at vcvttsd2si
+ qemu x86 TCG doesn't support AVX insns
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https://bugs.launchpad.net/bugs/1818075
Title:
qemu x86 TCG doesn't support AVX in
my guess is we're doing something unhelpful with the AVX insn,
and so the guest code which is checking the result and using it as its
loop condition for the jns is just looping forever
in_asm log just stopped with this as the last line
0x4000b4ef4a: 79 9ejns 0x4000b4ee
