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From: "werner at suse dot de" <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, 19 Jul 2022 09:58:47 +0000
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https://sourceware.org/bugzilla/show_bug.cgi?id=3D29327

--- Comment #26 from Dr. Werner Fink <werner at suse dot de> ---
Created attachment 14218
  --> https://sourceware.org/bugzilla/attachment.cgi?id=3D14218&action=3Ded=
it
trace.log

Just tried valgrind and preloading /lib64/libmemusage.so(In reply to H.J. Lu
from comment #25)
> (In reply to Dr. Werner Fink from comment #24)
> > Created attachment 14209 [details]
> > dumpctl.log
> ...
> >=20
> > If I try both
> >=20
> >   LD_AUDIT=3D${PWD}/auditmod.so LD_PRELOAD=3D/lib64/libmemusage.so
> >=20
> > it simply crashes with a SIGSEGV
> >=20
> >   werner@noether:/usr/src/werner/auditmod> LD_AUDIT=3D${PWD}/auditmod.so
> > LD_PRELOAD=3D/lib64/libmemusage.so /usr/lib64/kodi/kodi.bin=20
> >   version: 2
> >   Segmentation fault (core dumped)
> >=20
> > no output from auditmod.so ... only a core dump
> >=20
> >   werner@noether:/usr/src/werner/auditmod> sudo coredumpctl | tail -n 1
> >   Thu 2022-07-14 09:30:28 CEST 16275 223  50 SIGSEGV present=20
> > /usr/lib64/kodi/kodi.bin
> >=20
> >   werner@noether:/usr/src/werner/auditmod> sudo coredumpctl dump 16275 =
-o
> > /tmp/core > dumpctl.log 2>&1
>=20
> So they can't be used together.  Please find out the parameters passed to
> memset when crash happens.  Have you tried valgrind?

Just tried valgrind and preloading /lib64/libmemusage.so ... but this looks
more like valgrind is handled by libmemusage. At least it does not crash

--=20
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