Bug#1003574: segfault in libc-2.33.so during i386 boot ofde QEMU VM
Package: libc6
Version: 2.33-2
Severity: normal
When booting an i386 VM built for autopkgtests, I see the following
segfault during boot:
> [ 1.374128] Freeing unused kernel image (initmem) memory: 940K
> [ 1.384002] Write protecting kernel text and read-only data: 11292k
> [ 1.384526] Run /init as init process
> Loading, please wait...
> Starting version 250.2-1
> [ 1.406157] udevadm[106]: segfault at bc0000 ip b7d9f638 sp bf989cb8 error 6 in libc-2.33.so[b7c6e000
> [ 1.407017] Code: 1c 8b 01 ca ff e3 29 d9 8d b4 26 00 00 00 00 8d 76 00 0f 18 8a c0 03 00 00 0f 18 8a
> Segmentation fault
Boot continues briefly after that, but then drops to an emergency shell.
I've tried the other popular architectures, but I only saw this on i386.
To reproduce, this requires qemu-system-x86 and autopkgtest >= 5.17.
# Build image
$ sudo autopkgtest-build-qemu \
--mirror http://deb.debian.org/debian
--arch i386 \
unstable i386.img
# Boot image. -enable-kvm assumes that this is being tested on amd64
# Optionally use -nographic for terminal output instead of GUI
$ qemu-system-i386 \
-machine q35 \
-enable-kvm \
-device virtio-serial \
-nic user,model=virtio \
-m 1024 -smp 1 \
i386.img
Filing as severity "normal" as it can't be ruled out that this is a QEMU
issue, though I would be surprised. Unfortunately, I no longer have i386
hardware on which I could test this.
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