Bug#637206: linux-image-3.0.0-1-amd64: zombie after running iceweasel under valgrind
On 2011-08-09 22:24:29 +0100, Ben Hutchings wrote:
> On Tue, Aug 09, 2011 at 06:15:13PM +0200, Jonathan Nieder wrote:
> > Vincent Lefevre wrote:
> > > In short: I've got a zombie process child of init. I suppose that's
> > > a kernel bug.
> >
> > Something's seriously weird there, but isn't this currently phrased as
> > an init bug (i.e., "init" is not successfully waiting on its child)?
Note that:
* It was the only zombie process child of init. If this were an init
bug, there would probably be other zombies in the same case.
* Before being a zombie child of init, it was a zombie child of zsh.
zsh occasionally gets a zombie child (e.g. bug 589339, and also
bug 482346 on PowerPC but that one was known to be a kernel bug)
but it would be very unlikely that a similar bug shows up in zsh
then in init at about the same time.
> [...]
>
> It seems unlikely. I suspect the process has hung somewhere along
> the exit path in the kernel, so that from userland it appears to have
> exited (Z state) but it hasn't yet reached the point where it can be
> reaped.
I agree.
--
Vincent Lefèvre <vincent@vinc17.net> - Web: <http://www.vinc17.net/>
100% accessible validated (X)HTML - Blog: <http://www.vinc17.net/blog/>
Work: CR INRIA - computer arithmetic / Arénaire project (LIP, ENS-Lyon)
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