Bug#1103296: systemd: Caught <ABRT> from our own process

[Peter Palfrader]

On Wed, 16 Apr 2025, Luca Boccassi wrote:

> Control: tags -1 moreinfo
> 
> I see there are 3 threads in the full backtrace. In the version in
> bookworm there was still an async cleanup routine that used posix
> threads. This is known to mix really badly with glibc's handling of
> malloc internals, so I strongly suspect that's the issue. This was
> replaced with using subprocesses in trixie.
> 
> Are you able to reproduce the issue with stable-backports or
> testing/unstable?

We switched the unit file to a static user (nobody), which seems to have
been successful at triggering this issue.  I'll see if I can reproduce
the bug on a less-critical system and then try with a newer systemd.
I'll report back in either case.

And elsewhere it was written:

> Would you be able to provide the core file too?

Unfortunately not, though if it might help we can do an interactive gdb
session together.

Cheers,
-- 
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