From: Linus Torvalds <torvalds@osdl.org>
To: Guennadi Liakhovetski <g.liakhovetski@gmx.de>
Cc: Bradley Chapman <kakadu_croc@yahoo.com>, linux-kernel@vger.kernel.org
Subject: Re: What exactly are the issues with 2.6.0-test10 preempt?
Date: Mon, 24 Nov 2003 13:59:24 -0800 (PST) [thread overview]
Message-ID: <Pine.LNX.4.58.0311241356420.1473@home.osdl.org> (raw)
In-Reply-To: <Pine.LNX.4.44.0311242202430.2874-100000@poirot.grange>
On Mon, 24 Nov 2003, Guennadi Liakhovetski wrote:
>
> Well, FWIW, I'm getting 100% reproducible Oopses on __boot__ by enabling
> preemption AND (almost) all kernel-hacking CONFIG_DEBUG_* options - see my
> post of 21.11.2003 with subject "[OOPS] 2.6.0-test7 + preempt + hacking".
> If required, could try to narrow it down to 1 CONFIG option.
I'd love to have more info - I actually looked at your original report,
and it's one of those "impossible" things as far as I can tell. The low
bit of the work "pending" flag should acts as a lock on workqueues, and
serialize access to one workqueue totally - so having it show up with a
pending timer is "strange" to say the least. The only two ways to clear
the "pending" timer is by running the work-queue - either for the timer to
have gone off (for the delayed case) _or_ the timer not to have evern been
set in the first place (for the immediate case).
So more information would be wonderful.
Linus
next prev parent reply other threads:[~2003-11-24 21:59 UTC|newest]
Thread overview: 28+ messages / expand[flat|nested] mbox.gz Atom feed top
2003-11-24 19:14 What exactly are the issues with 2.6.0-test10 preempt? Bradley Chapman
2003-11-24 21:08 ` Guennadi Liakhovetski
2003-11-24 21:29 ` Bradley Chapman
2003-11-24 21:47 ` Guennadi Liakhovetski
2003-11-24 21:55 ` Bradley Chapman
2003-11-24 21:59 ` Linus Torvalds [this message]
2003-11-24 22:26 ` Bradley Chapman
2003-11-24 22:32 ` Linus Torvalds
2003-11-24 22:45 ` Bradley Chapman
2003-11-24 23:00 ` Linus Torvalds
2003-11-24 23:45 ` Linus Torvalds
2003-11-25 7:55 ` Jos Hulzink
2003-11-24 22:41 ` Måns Rullgård
2003-11-24 22:51 ` Mike Fedyk
2003-11-25 1:37 ` Måns Rullgård
2003-11-25 17:22 ` bill davidsen
2003-11-24 22:57 ` Guennadi Liakhovetski
2003-11-25 7:17 ` Guennadi Liakhovetski
2003-11-25 16:20 ` Linus Torvalds
2003-11-30 9:09 ` Matthias Urlichs
[not found] <20031124224514.56242.qmail@web40908.mail.yahoo.com.suse.lists.linux.kernel>
[not found] ` <Pine.LNX.4.58.0311241452550.15101@home.osdl.org.suse.lists.linux.kernel>
2003-11-24 23:50 ` Andi Kleen
2003-11-25 0:00 ` Mike Fedyk
2003-11-25 0:05 ` Andi Kleen
2003-11-25 0:16 ` Chris Mason
2003-11-25 18:13 kernel
2003-11-25 18:14 root
2003-11-25 18:31 kernel
2003-11-26 9:30 ` Jens Axboe
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