Re: [PATCH 0/2] Send a SIGCHLD to the init's pid namespace parent when reboot

Oleg Nesterov
2011-08-19T15:28:15Z

On 08/19, Daniel Lezcano wrote:
>
> On 08/15/2011 04:47 PM, Oleg Nesterov wrote:
> >
> > - sys_reboot(cmd) does
> >
> > if (!global_namespace) {
> > task_active_pid_ns(current)->reboot_cmd = cmd;
> > sigkill_my_init();
> > }
>
> Hi Oleg,
>
> what would be your advice to get rid of from_ancestor_ns which prevent
> the signal to be delivered to the init process ?

Sure, a plain kill can't work. You can do force_sig_info(), this clears
SIGNAL_UNKILLABLE.

Hmm. But now I seem to recall we have other reasons to make the new
sigkill_task() helper... We will see. Anyway, force_ should work afaics.

Oleg.