From: Ingo Molnar <mingo@elte.hu>
To: Alistair John Strachan <s0348365@sms.ed.ac.uk>
Cc: linux-kernel@vger.kernel.org
Subject: Re: Realtime Preemption, 2.6.12, Beginners Guide?
Date: Thu, 7 Jul 2005 13:42:23 +0200 [thread overview]
Message-ID: <20050707114223.GA29825@elte.hu> (raw)
In-Reply-To: <200507071237.42470.s0348365@sms.ed.ac.uk>
* Alistair John Strachan <s0348365@sms.ed.ac.uk> wrote:
> > do you have DEBUG_STACKOVERFLOW and latency tracing still enabled? The
> > combination of those two options is pretty good at detecting stack
> > overflows. Also, you might want to enable CONFIG_4KSTACKS, that too
> > disturbs the stack layout enough so that the error message may make it
> > to the console.
>
> I already have 4KSTACKS on. Latency tracing is enabled, but
> STACKOVERFLOW isn't; I'll just reenable everything again until we fix
> this. Do you think if I removed the printk() line I might get some
> useful information, before it does the stack trace?
usually such loops happen if the stack has been overflown and critical
information that lies on the bottom of the stack (struct thread_info) is
overwritten. Then we often cannot even perform simple printks. Stack
overflow debugging wont prevent the crash, but might give a better
traceback.
Ingo
next prev parent reply other threads:[~2005-07-07 11:46 UTC|newest]
Thread overview: 101+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-07-06 11:57 Realtime Preemption, 2.6.12, Beginners Guide? Alistair John Strachan
2005-07-06 12:51 ` Alistair John Strachan
2005-07-06 13:39 ` Ingo Molnar
2005-07-06 15:58 ` Alistair John Strachan
2005-07-06 16:28 ` Ingo Molnar
2005-07-06 16:31 ` Alistair John Strachan
2005-07-06 13:31 ` Ingo Molnar
2005-07-06 15:55 ` Alistair John Strachan
2005-07-06 16:24 ` Ingo Molnar
2005-07-06 16:37 ` Alistair John Strachan
2005-07-06 16:56 ` Alistair John Strachan
2005-07-06 17:01 ` Ingo Molnar
2005-07-06 17:14 ` Alistair John Strachan
2005-07-06 17:27 ` Ingo Molnar
2005-07-06 18:23 ` Alistair John Strachan
2005-07-06 18:38 ` Ingo Molnar
2005-07-06 18:41 ` Ingo Molnar
2005-07-06 19:47 ` Alistair John Strachan
2005-07-06 20:44 ` Ingo Molnar
2005-07-06 21:00 ` Alistair John Strachan
2005-07-06 21:02 ` Ingo Molnar
2005-07-06 22:15 ` Alistair John Strachan
2005-07-06 23:08 ` Fernando Lopez-Lezcano
2005-07-07 6:04 ` Michal Schmidt
2005-07-07 10:25 ` Ingo Molnar
2005-07-07 9:46 ` Alistair John Strachan
2005-07-07 11:21 ` Alistair John Strachan
2005-07-07 11:29 ` Ingo Molnar
2005-07-07 11:37 ` Alistair John Strachan
2005-07-07 11:42 ` Ingo Molnar [this message]
2005-07-07 12:15 ` Alistair John Strachan
2005-07-07 12:29 ` Ingo Molnar
2005-07-07 13:38 ` Alistair John Strachan
2005-07-07 12:33 ` Alistair John Strachan
2005-07-08 9:47 ` Alistair John Strachan
2005-07-08 11:46 ` Ingo Molnar
2005-07-08 18:38 ` Alistair John Strachan
2005-07-08 19:12 ` USB storage does not work with 3GB of RAM, but does with 2G of RAM Jon Schindler
2005-07-08 19:25 ` Realtime Preemption, 2.6.12, Beginners Guide? Ingo Molnar
2005-07-08 19:31 ` Ingo Molnar
2005-07-08 19:34 ` Ingo Molnar
2005-07-08 19:48 ` Ingo Molnar
2005-07-08 19:55 ` Alistair John Strachan
2005-07-08 20:45 ` Alistair John Strachan
2005-07-09 11:58 ` Ingo Molnar
2005-07-09 14:07 ` Alistair John Strachan
2005-07-09 14:55 ` Ingo Molnar
2005-07-09 15:57 ` Ingo Molnar
2005-07-09 16:02 ` Ingo Molnar
2005-07-09 16:04 ` Alistair John Strachan
2005-07-11 13:55 ` Alistair John Strachan
2005-07-11 14:12 ` Ingo Molnar
2005-07-11 14:16 ` Ingo Molnar
2005-07-11 14:38 ` Alistair John Strachan
2005-07-11 14:43 ` Ingo Molnar
2005-07-11 15:50 ` Alistair John Strachan
2005-07-13 14:45 ` Ingo Molnar
2005-07-13 15:30 ` Ingo Molnar
2005-07-14 19:58 ` Alistair John Strachan
2005-07-14 20:16 ` Lee Revell
2005-07-15 22:12 ` Alistair John Strachan
2005-07-12 2:56 ` Lee Revell
2005-07-11 15:07 ` Ingo Molnar
2005-07-12 20:09 ` Lee Revell
2005-07-12 21:01 ` Chuck Harding
2005-07-13 10:39 ` Ingo Molnar
2005-07-13 12:29 ` Gene Heskett
2005-07-13 14:01 ` K.R. Foley
2005-07-13 19:41 ` Chuck Harding
2005-07-13 19:45 ` Ingo Molnar
2005-07-14 13:39 ` K.R. Foley
2005-07-14 12:50 ` Karsten Wiese
2005-07-14 13:56 ` K.R. Foley
2005-07-14 14:10 ` K.R. Foley
2005-07-14 14:11 ` K.R. Foley
2005-07-14 19:49 ` Chuck Harding
2005-07-16 17:15 ` Ingo Molnar
2005-07-16 19:01 ` K.R. Foley
2005-07-17 12:07 ` Karsten Wiese
2005-07-18 15:46 ` K.R. Foley
2005-07-19 11:14 ` Karsten Wiese
2005-07-19 13:35 ` Gene Heskett
2005-07-19 13:57 ` Ingo Molnar
2005-07-19 15:19 ` Gene Heskett
2005-07-19 23:00 ` Karsten Wiese
2005-07-09 12:41 ` Ingo Molnar
2005-07-09 12:46 ` Ingo Molnar
2005-07-09 13:05 ` Ingo Molnar
2005-07-11 22:48 ` William Weston
2005-07-12 13:53 ` Ingo Molnar
2005-07-09 13:13 ` Ingo Molnar
2005-07-09 13:26 ` Ingo Molnar
2005-07-10 19:01 ` PCMCIA stack reduction patch [Was: Re: Realtime Preemption, 2.6.12, Beginners Guide?] Dominik Brodowski
2005-07-09 13:36 ` Realtime Preemption, 2.6.12, Beginners Guide? Ingo Molnar
2005-07-11 13:28 ` Paulo Marques
2005-07-08 11:48 ` Ingo Molnar
2005-07-08 17:42 ` Alistair John Strachan
2005-07-08 17:48 ` Jakub Jelinek
2005-07-08 18:12 ` Alistair John Strachan
[not found] <20050713063310.GA12661@elte.hu>
2005-07-13 10:30 ` karsten wiese
2005-07-13 18:38 ` Chuck Harding
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