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Date:      Fri, 06 Dec 2024 13:34:43 +0000
From:      bugzilla-noreply@freebsd.org
To:        virtualization@FreeBSD.org
Subject:   [Bug 279901] glibc-2.39-2 and above on the host segfault
Message-ID:  <bug-279901-27103-jwoxUH5Iis@https.bugs.freebsd.org/bugzilla/>
In-Reply-To: <bug-279901-27103@https.bugs.freebsd.org/bugzilla/>
References:  <bug-279901-27103@https.bugs.freebsd.org/bugzilla/>

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https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=3D279901

Adhemerval Zanella <zatrazz@gmail.com> changed:

           What    |Removed                     |Added
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                 CC|                            |zatrazz@gmail.com

--- Comment #19 from Adhemerval Zanella <zatrazz@gmail.com> ---
I am trying to reproduce it with a different hypervisor/emulation (in this =
case
qemu/kvm) with a Ryzen 9 5900x Zen3 core but both AlmaLinux 10 Kitten (glibc
2.39) and debian sid (glibc 2.40) boots and works without any issue.

And I also verified on debian sid the selected memcpy/memmove is indeed the=
 one
that optimized with glibc change (__memcpy_avx_unaligned_erms). I even trie=
d to
run glibc memcpy/memmove tests in this VM, where they stress a lot of diffe=
rent
sizes and alignments for different memcpy/memmove implementations.

Also, my daily workstation (Ryzen 9 5900x) the uses a recent glibc that also
contains this issue and I haven't see any memcpy/memmove related issue.

So I am not sure if this is a glibc issue.

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