Re: Sarge box not rebooting..

[Miquel van Smoorenburg <miquels@cistron.nl>]

On 2004.12.28 17:42, Robert Waldner wrote:
> On Tue, 28 Dec 2004 08:40:48 +0100, Robert Waldner writes:
> >>>Hmm, can it be that killall5 doesn't actually manage to *not* kill
> >>> itself?
>
> >>Ofcourse it goes through great lengths to do exactly that - NOT
> >>kill itself. It kills all processes _except_ itself and its
> >>caller.
>
> >Any hints on what it _could_ be, or on what I can do to further narrow
> > down the problem?
>
> Well, I expanded killall5.c with a couple printf's:
>
> ...
> int main(int argc, char **argv)
> {
> ...
>         signal(SIGTERM, SIG_IGN);
>         signal(SIGSTOP, SIG_IGN);
>         signal(SIGKILL, SIG_IGN);
>
>         /* Now stop all processes. */
> // changes rw
>         printf("now doing kill(-1, SIGSTOP);\n");
>         kill(-1, SIGSTOP);
>         sent_sigstop = 1;
>         printf("done with kill(-1, SIGSTOP);\n");
> ...
>
>  and the last thing I see on the console is the first printf.
>  Screenshot (thanks to iLO) at
>  http://www.waldner.priv.at/temp/killall5.jpg
>
> So to me it seems like "signal(SIGSTOP, SIG_IGN);" either isn't 
>  honored, and killall5 itself killed, or else it kills something else
>  essential, but what could that be?

No, kill(-1, SIGWHATEVER) is guaranteed to kill all processes
/except/ the caller. "man 2 kill" on any unix/linux box. What kernel
are you using, this might be a kernel bug. Is this an i386 or
another architecture ?

(You're not running bootlogd somehow at shutdown time are you ?)

> Plus, I've discovered 3 other boxen, various DL360/380, with the same 
>  problem. Isn't there anyone else with Compaq/HP gear and this problem?

I doubt it is compaq specific, but there must be something else
out of the ordinary here or everybody would have this problem.

Mike.