On 12/02/2015 05:19 PM, Burton, Ross wrote:
>
> On 2 December 2015 at 05:06, Hongxu Jia <hongxu.jia@windriver.com 
> <mailto:hongxu.jia@windriver.com>> wrote:
>
>     The qemu didn't support '-march=corei7 -mtune=corei7' and
>     gcc optimization level 3 '-O3' very well, in which the
>     /usr/lib64/python2.7/test/test_md5.py and
>     /usr/lib64/python2.7/test/test_sha.py failed.
>
>     So we use gcc optimization level 2 to instead.
>
>     YOCTO [# 8747]
>
>
> Has anyone decided if this is a bug in the compiler, or the Python 
> code making assumptions that don't hold at -O3?
>

The root cause is the qemu didn't support gcc optimization level 3 very 
well.

This fix is a workaround, and I file another defect to trace the root cause.
https://bugzilla.yoctoproject.org/show_bug.cgi?id=8748

//Hongxu

> Ross