From: Alistair John Strachan <s0348365@sms.ed.ac.uk>
To: Ingo Molnar <mingo@elte.hu>
Cc: linux-kernel@vger.kernel.org
Subject: Re: Realtime Preemption, 2.6.12, Beginners Guide?
Date: Wed, 6 Jul 2005 19:23:37 +0100 [thread overview]
Message-ID: <200507061923.37746.s0348365@sms.ed.ac.uk> (raw)
In-Reply-To: <20050706172716.GA28755@elte.hu>
On Wednesday 06 Jul 2005 18:27, Ingo Molnar wrote:
> * Alistair John Strachan <s0348365@sms.ed.ac.uk> wrote:
> > > great! Do the softlockup warnings still occur?
> >
> > Yes, but in no greater a number.
>
> could you apply the patch below, so that we can see what kind of time
> gap the softlockup detector encountered?
>
> Ingo
>
Interesting. They're both exactly 10001 jiffies apart.
BUG: soft lockup detected on CPU#0! -283805--293806
[<c010421f>] dump_stack+0x1f/0x30 (20)
[<c01449d7>] softlockup_tick+0x97/0xc0 (32)
[<c0108607>] timer_interrupt+0x57/0x100 (20)
[<c0144c85>] handle_IRQ_event+0x85/0x110 (52)
[<c0144dea>] __do_IRQ+0xda/0x170 (44)
[<c0105b15>] do_IRQ+0x65/0xa0 (920170428)
=======================
[<c0103ceb>] common_interrupt+0x1f/0x24 (-925676316)
------------------------------
| showing all locks held by: | (usb.agent/2424 [f7140800, 125]):
------------------------------
BUG: soft lockup detected on CPU#0! -251889--261890
[<c010421f>] dump_stack+0x1f/0x30 (20)
[<c01449d7>] softlockup_tick+0x97/0xc0 (32)
[<c0108607>] timer_interrupt+0x57/0x100 (20)
[<c0144c85>] handle_IRQ_event+0x85/0x110 (52)
[<c0144dea>] __do_IRQ+0xda/0x170 (44)
[<c0105b15>] do_IRQ+0x65/0xa0 (-196752)
=======================
[<c0103ceb>] common_interrupt+0x1f/0x24 (96)
[<c0101145>] cpu_idle+0x65/0x90 (16)
[<c03b0902>] start_kernel+0x182/0x1c0 (32)
[<c010019f>] 0xc010019f (1076011023)
------------------------------
| showing all locks held by: | (swapper/0 [c035de00, 140]):
------------------------------
Note the minus sign -- this is only just into the boot process.
--
Cheers,
Alistair.
personal: alistair()devzero!co!uk
university: s0348365()sms!ed!ac!uk
student: CS/CSim Undergraduate
contact: 1F2 55 South Clerk Street,
Edinburgh. EH8 9PP.
next prev parent reply other threads:[~2005-07-06 23:53 UTC|newest]
Thread overview: 101+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-07-06 11:57 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 [this message]
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
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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