Re: Need maintainer guide for debugging on i386

[Jochen Sprickerhof]

* Bastien Roucaries <ro...@debian.org> [2025-05-01 17:40]:

Le jeudi 1 mai 2025, 17:26:34 heure d’été d’Europe centrale Jochen Sprickerhof
a écrit :

mmdebstrap --variant=apt --arch=i386 --chrooted-customize-hook=bash unstable
/dev/null

This one does not fully work for core dump....

Try on the container:
#include <stdlib.h>   // C

void main(void)
{
   abort();
}

Do not get my core file in container /var/lib/systemd/coredump/ but in host /
var/lib/systemd/coredump/

https://www.kernel.org/doc/html/latest/admin-guide/sysctl/kernel.html#core-pattern



Cheers Jochen

That's a limitation of systemd-coredump or the kernel, depending on how you see it. From a quick look the pattern in /proc/sys/kernel/core_pattern is not namespaces so mmdebstrap can't change it but the kernel supports adding user namespaces to it: So systemd-coredump could do that but it would probably need to know the mmdebstrap internals to du so. So I guess disabling systemd-coredump would make the most sense.

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