Re: 2.6.19-rc2-mm2 - process_session-helper breaks /sbin/killall5

[Andrew Morton <akpm@osdl.org>]

On Fri, 27 Oct 2006 23:18:39 -0400
Valdis.Kletnieks@vt.edu wrote:

> On Fri, 20 Oct 2006 01:56:41 PDT, Andrew Morton said:
> > 
> > ftp://ftp.kernel.org/pub/linux/kernel/people/akpm/patches/2.6/2.6.19-rc2/2.6.19-rc2-mm2/
> 
> > +add-process_session-helper-routine.patch
> > +add-process_session-helper-routine-deprecate-old-field.patch
> > +add-process_session-helper-routine-deprecate-old-field-tidy.patch
> > +add-process_session-helper-routine-deprecate-old-field-fix-warnings.patch
> > +add-process_session-helper-routine-deprecate-old-field-fix-warnings-2.patch
> > +rename-struct-namespace-to-struct-mnt_namespace.patch
> > +add-an-identifier-to-nsproxy.patch
> > +rename-struct-pspace-to-struct-pid_namespace.patch
> > +add-pid_namespace-to-nsproxy.patch
> > +use-current-nsproxy-pid_ns.patch
> > +add-child-reaper-to-pid_namespace.patch
> > 
> >  Start work on virtualising process sessions.
> 
> Sorry for the delay in spotting this one sooner (and I'm surprised apparently
> nobody else has).  Was busy, didn't get a chance to bisect it at all till
> today, and I only got as far as "one of the above patches".
> 
> System works fine, except when you go to shutdown.  When it hits the /sbin/killall5
> call in /etc/init.d/halt, it kills *all* the processes, and we get a
> nice message 'INIT: no more processes in current runlevel', and we're dead in
> the water.  Checking with alt-sysrg-T shows that in fact, the only things
> left running are the various kernel threads.  As near as I can tell, killall5
> wasn't able to tell that its parent process was part of its process group,
> so didn't refrain from killing it.
> 
> Any ideas/clues?

did you apply the hotfixes?