[systemd-devel] Triggering the HW Watchdog

[Lennart Poettering]

On Di, 27.02.18 15:12, D.S. Ljungmark (ljungmark at modio.se) wrote:

> > I figure you can send SIGSTOP to PID 1, no? (there are some signals
> > the kernel blocks for PID 1, but I think SIGSTOP is not among them,
> > please try)
> 
> It seems that SIGSTOP is being filtered, because nothing appears to
> happen, and the system certainly isn't rebooting.

You should be able to trigger an abort in PID 1 by sending it SIGABRT
or SIGQUIT or so. If PID 1 aborts it will actually enter a freeze loop
in which it stops pinging the hw watchdog.

Lennart

-- 
Lennart Poettering, Red Hat