[PATCH] Don't write beyond destination in __mempcpy_avx512_no_vzeroupper (bug 23196)

Florian Weimer fweimer@redhat.com
Tue May 22 15:35:00 GMT 2018


On 05/22/2018 05:06 PM, Andreas Schwab wrote:
> On Mai 22 2018, Florian Weimer<fweimer@redhat.com>  wrote:
> 
>> And with the original reproducer, we wouldn't hit preloop_large, where the
>> bug is.
> Worksforme.
> 
> $ string/test-mempcpy

I don't doubt that.  Our CPUs probably have different cache sizes, or 
there are differences in how different glibc versions compute the 
effective cache size.

Thanks,
Florian



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