Re: Killing a zombie process?

[Paul Goyette <paul%vps1.whooppee.com@localhost>]

On Thu, 24 Sep 2015, Greg Troxel wrote:

> Paul Goyette <paul%vps1.whooppee.com@localhost> writes:
>
> > On Thu, 24 Sep 2015, Gary Duzan wrote:
> > Yup, my zombie's parent PPID==1
> >
> > >   If init is really its parent, check its "ps axl" output and
> > > check its WCHAN. If it isn't "wait", maybe run "ktruss -p 1" to
> > > get an idea of what it is doing instead of wait*() calls.
> >
> > See ps output above;  init's WCHAN==wait
> >
> > So no clue on why it's not getting around to reaping child 27237.
>
> I would try sending init a HUP, which should rescan /etc/ttys and not
> really do anything.  But it will then call wait(2) again, and if there
> was a glitch where init was already in wait and the offending process's
> transition to zombie and ppid==1 didn't cause a wakeup, then it may
> resolve.

No luck...  I HUPed init, but the zombie is still there.

# kill -HUP 1
# ps axl | grep ' Z '
   0 27237     1     0   0  0       0      0 -       Z    pts/2- 0:00.00 (sh)




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