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From: David Mosberger <davidm@napali.hpl.hp.com>
To: Andreas Schwab <schwab@suse.de>
Cc: davidm@hpl.hp.com, torvalds@osdl.org, akpm@osdl.org,
	linux-kernel@vger.kernel.org, linux-ia64@vger.kernel.org
Subject: Re: fix for unkillable zombie task
Date: Mon, 19 Jul 2004 19:21:05 +0000	[thread overview]
Message-ID: <16636.7969.396569.877226@napali.hpl.hp.com> (raw)
In-Reply-To: <jesmbr3pfl.fsf@sykes.suse.de>

>>>>> On Sat, 17 Jul 2004 12:20:46 +0200, Andreas Schwab <schwab@suse.de> said:

  Andreas> Could this be the same problem as discussed in the thread at
  Andreas> <http://marc.theaimsgroup.com/?t\x108857537300002&r=1&w=2>?

It appears the "final" patch never made it into Linus' tree?

In any case, I'm certain the fix I submitted is needed, but I wouldn't
claim I understand all of the exit path handling---it's become rather
complicated with the NPTL-changes.  For example, one thing I don't
understand in forget_original_parent() is that it traverses the
father->children list and then does the check:

		if (father = p->real_parent) {

AFAIK, if "p" in on the father->children list, that implies that
(p->real_parent = father).  I suspect a typo here and
"p->real_parent" should read "p->parent", but I'm sure whoever wrote
this code must have tested it, so it's probably more likely I'm
missing something.

	--david

  reply	other threads:[~2004-07-19 19:21 UTC|newest]

Thread overview: 6+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2004-07-16 22:16 fix for unkillable zombie task David Mosberger
2004-07-17 10:20 ` Andreas Schwab
2004-07-19 19:21   ` David Mosberger [this message]
2004-07-20  8:23     ` Andreas Schwab
2004-07-20 16:08       ` David Mosberger
2004-07-20 20:10         ` Andreas Schwab

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