#988655 qemu-user-static: qemu-sparc64-static often coredumps running a sid chroot

Package:
qemu-user-static
Source:
qemu
Description:
QEMU user mode emulation binaries (static version)
Submitter:
Rich Ercolani
Date:
2025-08-11 08:47:02 UTC
Severity:
normal
#988655#5
Date:
2021-05-17 12:18:30 UTC
From:
To:
Dear Maintainer,

I am trying to debug an issue with an external kernel module on sparc64, so I wanted
to rebuild said module faster than my poor (real) UltraSPARC IIi would permit. For
bisecting reasons on another problem, I needed to try a kernel from the past, so I
debootstrapped (from the real SPARC) a chroot environment over NFSv4 pointed at
https://snapshot.debian.org/archive/debian-ports/20180331T141542Z.
So I bootstrapped that, verified that it worked by chrooting in from the SPARC and
installing the various development packages I needed, everything worked fine, then
I thought I'd try qemu-sparc64-static to build on my much faster server.

I was already running qemu-user-static from buster-backports, so I thought this would
likely work well.

Instead, during ./autogen.sh, I got back several "Assertion failure (core dumped)",
and the compile did not continue. (This does not happen on native hardware.)

I also tried and observed the same behavior on the qemu-user-static from experimental,
albeit in a bullseye VM because it didn't install particularly readily on buster.

Please LMK if I can do anything to be helpful in further investigating this.

- Rich

#988655#10
Date:
2025-08-11 08:45:45 UTC
From:
To:
Version: 1:7.2+dfsg-1
It looks like the issue has been fixed quite some time ago, - at least I
can't reproduce it on bookworm (qemu version 7.2).

Closing this bug report now.  Please feel free to reopen it if you think
it is incorrect and the problem is still present.

Thanks,

/mjt