Re: [Xen-devel] [PATCH optional v2 01/10] hvm/hpet: Add manual unit test code.

["Jan Beulich" <JBeulich@xxxxxxxx>]

>>> On 11.04.14 at 14:48, <dslutz@xxxxxxxxxxx> wrote:

> On 04/11/14 08:09, Jan Beulich wrote:
>>>>> On 11.04.14 at 13:57, <dslutz@xxxxxxxxxxx> wrote:
>>>
>>> I see that that test is not passing:
>>>
>>> make -C tools/tests/x86_emulator run
>>> ...
>>> Testing daa/das (all inputs)...         skipped
>>> Testing movq %mm3,(%ecx)...             okay
>>> Testing movq (%edx),%mm5...             okay
>>> Testing movdqu %xmm2,(%ecx)...          okay
>>> Testing movdqu (%edx),%xmm4...          okay
>>> Testing vmovdqu %ymm2,(%ecx)...         failed!
>> Odd - it worked the last time I tried. Was that perhaps on an AVX-
>> incapable system?
> 
> Is avx from /proc/cpuinfo:

Interesting - I just tried it again, and it works for me. Could of course
be an issue with your glibc clobbering %ymm2 - I always wondered for
how long we would get away with this not really correct register usage.
But otoh I would have expected the earlier test using %xmm2 to fail
then too...

Jan


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