From: Andreas Schwab <schwab@suse.de>
To: davidm@hpl.hp.com
Cc: torvalds@osdl.org, akpm@osdl.org, linux-kernel@vger.kernel.org,
linux-ia64@vger.kernel.org
Subject: Re: fix for unkillable zombie task
Date: Sat, 17 Jul 2004 10:20:46 +0000 [thread overview]
Message-ID: <jesmbr3pfl.fsf@sykes.suse.de> (raw)
In-Reply-To: <16632.21429.257483.650452@napali.hpl.hp.com> (David Mosberger's message of "Fri, 16 Jul 2004 15:16:21 -0700")
David Mosberger <davidm@napali.hpl.hp.com> writes:
> I got a bugreport where a ptrace'd task would end up in an unkillable
> zombie state if the (real) parent of the task happened to ignore
> SIGCHLD. The patch below should fix the problem. I attached a
> self-contained test program. If the bug is present, you should
> see:
>
> FAILURE: child PID seems to be still around!
>
> at the end (and there will be an unkillable zombie).
Could this be the same problem as discussed in the thread at
<http://marc.theaimsgroup.com/?t\x108857537300002&r=1&w=2>?
Andreas.
--
Andreas Schwab, SuSE Labs, schwab@suse.de
SuSE Linux AG, Maxfeldstraße 5, 90409 Nürnberg, Germany
Key fingerprint = 58CA 54C7 6D53 942B 1756 01D3 44D5 214B 8276 4ED5
"And now for something completely different."
WARNING: multiple messages have this Message-ID (diff)
From: Andreas Schwab <schwab@suse.de>
To: davidm@hpl.hp.com
Cc: torvalds@osdl.org, akpm@osdl.org, linux-kernel@vger.kernel.org,
linux-ia64@vger.kernel.org
Subject: Re: fix for unkillable zombie task
Date: Sat, 17 Jul 2004 12:20:46 +0200 [thread overview]
Message-ID: <jesmbr3pfl.fsf@sykes.suse.de> (raw)
In-Reply-To: <16632.21429.257483.650452@napali.hpl.hp.com> (David Mosberger's message of "Fri, 16 Jul 2004 15:16:21 -0700")
David Mosberger <davidm@napali.hpl.hp.com> writes:
> I got a bugreport where a ptrace'd task would end up in an unkillable
> zombie state if the (real) parent of the task happened to ignore
> SIGCHLD. The patch below should fix the problem. I attached a
> self-contained test program. If the bug is present, you should
> see:
>
> FAILURE: child PID seems to be still around!
>
> at the end (and there will be an unkillable zombie).
Could this be the same problem as discussed in the thread at
<http://marc.theaimsgroup.com/?t=108857537300002&r=1&w=2>?
Andreas.
--
Andreas Schwab, SuSE Labs, schwab@suse.de
SuSE Linux AG, Maxfeldstraße 5, 90409 Nürnberg, Germany
Key fingerprint = 58CA 54C7 6D53 942B 1756 01D3 44D5 214B 8276 4ED5
"And now for something completely different."
next prev parent reply other threads:[~2004-07-17 10:20 UTC|newest]
Thread overview: 12+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-07-16 22:16 fix for unkillable zombie task David Mosberger
2004-07-16 22:16 ` David Mosberger
2004-07-17 10:20 ` Andreas Schwab [this message]
2004-07-17 10:20 ` Andreas Schwab
2004-07-19 19:21 ` David Mosberger
2004-07-19 19:21 ` David Mosberger
2004-07-20 8:23 ` Andreas Schwab
2004-07-20 8:23 ` Andreas Schwab
2004-07-20 16:08 ` David Mosberger
2004-07-20 16:08 ` David Mosberger
2004-07-20 20:10 ` Andreas Schwab
2004-07-20 20:10 ` Andreas Schwab
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