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From: "hjl.tools at gmail dot com" <sourceware-bugzilla@sourceware.org>
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Subject: [Bug string/29327] A SIGSEGV in hardware optimized memset for sse2
 __memset_sse2_unaligned_erms()
Date: Tue, 12 Jul 2022 15:46:20 +0000
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https://sourceware.org/bugzilla/show_bug.cgi?id=3D29327

H.J. Lu <hjl.tools at gmail dot com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |WAITING

--- Comment #20 from H.J. Lu <hjl.tools at gmail dot com> ---
(In reply to Dr. Werner Fink from comment #16)
> Created attachment 14205 [details]
> audit.log
>=20
> (In reply to H.J. Lu from comment #15)
> > Created attachment 14202 [details]
> > LD_AUDIT example
> >=20
> > Here is an example for LD_AUDIT:
> >=20
> > [hjl@gnu-cfl-1 audit-memset]$ make
> > LD_AUDIT=3D./auditmod.so ./foo
> > version: 2
> > memset: dst=3D0x601060, src=3D0x3, len=3D33
> > pltenter: memset: dst=3D0x601060, src=3D3, len=3D33
> > [hjl@gnu-cfl-1 audit-memset]$=20
> >=20
> > We need arguments of the last memset call.
>=20
> Lets try
>=20
>  /kodi> ( setenv LD_AUDIT ./auditmod.so ; ./foo )
>  version: 2
>  memset: dst=3D0x404060, src=3D0x3, len=3D33
>  pltenter: memset: dst=3D0x404060, src=3D3, len=3D33
>=20
> yep
>=20
>   /kodi> ( setenv LD_AUDIT ./auditmod.so ; setenv LD_PRELOAD
> /lib64/libmemusage.so ; setenv MEMUSAGE_OUTPUT /dev/null ; setenv
> MEMUSAGE_TRACE_MMAP yes ; /usr/lib64/kodi/kodi.bin )
>  version: 2
>  Segmentation fault (core dumped)
>=20
> libmemusage does not allow ... then without
>=20
>   /kodi> ( setenv LD_AUDIT ./auditmod.so ; /usr/lib64/kodi/kodi.bin ) | &
> tee audit.log
>=20
> ... that is a longer list, see attachment

We need the audit.log from crash.

--=20
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