[Bug 279901] glibc-2.39-2 and above on the host segfault

From: <bugzilla-noreply_at_freebsd.org>
Date: Thu, 26 Dec 2024 05:16:31 UTC
https://bugs.freebsd.org/bugzilla/show_bug.cgi?id=279901

--- Comment #53 from Koichiro Iwao <meta@FreeBSD.org> ---
The bhyve patch in comment #41 broke EL8 (AlmaLinux 8, RockyLinux 8). There was
no issue with unpatched bhyve.

Host: FreeBSD 14-STABLE w/ patch comment #14 on AMD Ryzen 7 5700G
Guest: AlmaLinux 8.10, RockyLinux 8.10 (glibc-2.28-251.el8_10.2.x86_64)

Actually, I run EL8 container on AlmaLinux 9 on bhyve.

AL9$ podman run -it --rm quay.io/almalinuxorg/almalinux:8 /bin/bash 
AL9$ echo $?
139
AL9$ dmesg | tail -2
[99577.163764] bash[2877]: segfault at 7ffdaa60f130 ip 00007fb9a9a12cf0 sp
00007ffdaa60e0e8 error 4 in libc-2.28.so[7fb9a996b000+1cd000] likely on CPU 1
(core 1, socket 1)
[99577.163773] Code: 00 00 0f 18 8e c0 20 00 00 0f 18 8e 80 30 00 00 0f 18 8e
c0 30 00 00 c5 fe 6f 06 c5 fe 6f 4e 20 c5 fe 6f 56 40 c5 fe 6f 5e 60 <c5> fe 6f
a6 00 10 00 00 c5 fe 6f ae 20 10 00 00 c5 fe 6f b6 40 10

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