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From: "werner at suse dot de" <sourceware-bugzilla@sourceware.org>
To: glibc-bugs@sourceware.org
Subject: [Bug string/29327] A SIGSEGV in hardware optimized memset for sse2
 __memset_sse2_unaligned_erms()
Date: Fri, 08 Jul 2022 12:29:38 +0000
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https://sourceware.org/bugzilla/show_bug.cgi?id=3D29327

--- Comment #10 from Dr. Werner Fink <werner at suse dot de> ---
(In reply to Noah Goldstein from comment #7)
> (In reply to H.J. Lu from comment #6)
> > Please set break point at __memset_sse2_unaligned_erms and print out
> > $rdx/$rdi.
> > We need the last pair of $rdx and $rdi before crash.
>=20
> Can you also set a breakpoint as `__memset_sse2_unaligned`. Intuitively y=
ou
> are going through that as the tests I ran should cover all values /
> alignments that go to the loop (think for the erms version we would see a
> segfault at the `rep stosb`).

Setting a breakpoint on menset works whereas for __memset_sse2_unaligned I =
see
only

 Program terminated with signal SIGPROF, Profiling timer expired.
 The program no longer exists.

--=20
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