Re: coredumpctl: matching by e.g. env var?

[Lennart Poettering <lennart@xxxxxxxxxxxxxx>]

On Mi, 29.03.23 09:19, Stephan Bergmann (sbergman@xxxxxxxxxx) wrote:

> On 28/03/2023 22:58, Lennart Poettering wrote:
> > On Di, 28.03.23 08:13, Stephan Bergmann (sbergman@xxxxxxxxxx) wrote:
> > > * Is it guaranteed for system-run --scope that the wrapped command will run
> > > in the surrounding process group?  (Because LibreOffice' Jenkins relies on a
> > > single process group for a whole `make check` to reliably kill stuck builds.
> > > And it looks like systemd-run --scope is just a lightweight wrapper that
> > > then exec's the command in the same process, which looks promising.)
> >
> > Yes. Process groups and control groups are orthogonal. Moving a
> > process into a cgroup via systemd's "scope" concept won't affect
> > process group membership.
> >
> > In fact, Linux doesn't have any API to change process group membership
> > from the "outside" anyway. Processes can only do this from "inside"
> > the process. Hence even if we wanted, we couln't affect that.
>
> (My concern was that the implementation of `systemd-run --scope` might call
> something like `setpgid(getpid(), getpid())` to establish a new process
> group, which would then be inherited by the fork'ed or exec'ed command.)

It does not.

Lennart

--
Lennart Poettering, Berlin