[systemd-devel] Sending a SIGABRT to PID1

Lennart Poettering lennart at poettering.net
Sun May 3 17:40:34 PDT 2015

On Sun, 03.05.15 19:10, Mantas Mikulėnas (grawity at gmail.com) wrote:

> On Sun, May 3, 2015 at 6:54 PM, Víctor Fernández <vfrico at gmail.com> wrote:
> > Ok, Thanks for your reply.
> >
> > But, just out of curiosity, why init process gets down with a SIGABRT and
> > not with a SIGKILL (9), being this a signal which cannot be caught, blocked
> > or ignored?
> >
> pid 1 is allowed to catch SIGKILL, and usually does so, so that you can
> sigkill everything (e.g. Alt+SysRq+I) and still have a working system
> afterwards.

Hmm, it is allowed to do catch SIGKILL? That would be news to me, and
systemd certainly doesn't. Do you have any reference?


Lennart Poettering, Red Hat

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