From: Daniel Walker <dwalker@mvista.com>
To: Steven Rostedt <rostedt@goodmis.org>
Cc: Chuck Harding <charding@llnl.gov>, Ingo Molnar <mingo@elte.hu>,
Linux Kernel Discussion List <linux-kernel@vger.kernel.org>
Subject: Re: Real-Time Preemption, -RT-2.6.12-final-V0.7.50-24
Date: Tue, 28 Jun 2005 08:54:46 -0700 (PDT) [thread overview]
Message-ID: <Pine.LNX.4.10.10506280853380.817-100000@godzilla.mvista.com> (raw)
In-Reply-To: <Pine.LNX.4.58.0506280337390.24849@localhost.localdomain>
On Tue, 28 Jun 2005, Steven Rostedt wrote:
>
> [Please CC Ingo Molnar on all RT kernel issues]
>
> On Mon, 27 Jun 2005, Daniel Walker wrote:
>
> > On Mon, 2005-06-27 at 12:01 -0700, Chuck Harding wrote:
> > > What can be causing the following message to appear in dmesg and
> > > how can I fix it?
> > >
> > > BUG: scheduling with irqs disabled: kapmd/0x00000000/46
> > > caller is schedule_timeout+0x51/0x9e
> > > [<c02b3bc9>] schedule+0x96/0xf6 (8)
> > > [<c02b43f7>] schedule_timeout+0x51/0x9e (28)
> > > [<c01222ed>] process_timeout+0x0/0x5 (32)
> > > [<c0112063>] apm_mainloop+0x7a/0x96 (24)
> > > [<c0115e45>] default_wake_function+0x0/0x16 (12)
> > > [<c0115e45>] default_wake_function+0x0/0x16 (32)
> > > [<c0111485>] apm_driver_version+0x1c/0x38 (16)
> > > [<c01126f7>] apm+0x0/0x289 (8)
> > > [<c01127a6>] apm+0xaf/0x289 (8)
> > > [<c010133c>] kernel_thread_helper+0x0/0xb (20)
> > > [<c0101341>] kernel_thread_helper+0x5/0xb (4)
> > >
> > > This was also present in earlier final-V0.7.50 version I've tried
> > > (since -00) I don't get hangs but that doesn't look like it should
> > > be happening. Thanks.
> >
> > If you have PREEMPT_RT enabled, it looks like interrupts are hard
> > disabled then there is a schedule_timeout() requested. You could try
> > turning off power management and see if you still have problems.
> >
>
> Although turning off apm works, this is a fix to the symptom and not a
> cure. Has someone already taken a look at this code? Since
> apm_bios_call_simple calls local_save_flags and afterwards
> raw_lock_irq_restore is then called. Shouldn't that have been
> raw_local_save_flags?
>
> That apm_bios_call_simple_asm also looks pretty scary! I haven't yet
> figured out how APM_FUNC_VERSION becomes a normal function.
I looked at them briefly.. It looks like there is some raw and non-raw
mixed usage .
Daniel
next prev parent reply other threads:[~2005-06-28 15:55 UTC|newest]
Thread overview: 179+ messages / expand[flat|nested] mbox.gz Atom feed top
2005-06-08 11:28 [patch] Real-Time Preemption, -RT-2.6.12-rc6-V0.7.48-00 Ingo Molnar
2005-06-08 14:18 ` Michal Schmidt
2005-06-08 14:40 ` Keith Owens
2005-06-08 14:41 ` Paulo Marques
2005-06-08 15:04 ` Michal Schmidt
2005-06-08 15:23 ` Keith Owens
2005-06-08 15:56 ` Paulo Marques
2005-06-08 14:32 ` Michal Schmidt
2005-06-08 15:48 ` K.R. Foley
2005-06-08 16:08 ` K.R. Foley
2005-06-08 16:26 ` K.R. Foley
2005-06-08 17:26 ` K.R. Foley
2005-06-08 19:18 ` Ingo Molnar
2005-06-09 11:39 ` Ingo Molnar
2005-06-10 13:34 ` K.R. Foley
2005-06-09 8:47 ` Serge Noiraud
2005-06-09 11:55 ` Ingo Molnar
2005-06-09 15:12 ` Serge Noiraud
2005-06-09 16:34 ` Daniel Walker
2005-06-13 8:53 ` Serge Noiraud
2005-06-13 9:07 ` Ingo Molnar
2005-06-08 17:51 ` Michal Schmidt
2005-06-09 11:45 ` Ingo Molnar
2005-06-09 12:09 ` Michal Schmidt
2005-06-09 12:13 ` Ingo Molnar
2005-06-09 12:48 ` Michal Schmidt
2005-06-10 8:56 ` Esben Nielsen
2005-06-08 19:58 ` Daniel Walker
2005-06-09 21:24 ` Michal Schmidt
2005-06-09 21:34 ` Michal Schmidt
2005-06-11 7:32 ` Ingo Molnar
2005-06-11 8:10 ` Ingo Molnar
2005-06-11 16:35 ` Peter Zijlstra
2005-06-11 18:48 ` Ingo Molnar
2005-06-11 21:14 ` Peter Zijlstra
2005-06-12 1:40 ` Gene Heskett
2005-06-12 6:49 ` Ingo Molnar
2005-06-12 9:02 ` Gene Heskett
2005-06-12 10:35 ` Ingo Molnar
2005-06-12 13:40 ` Gene Heskett
2005-06-12 13:49 ` Ingo Molnar
2005-06-12 14:23 ` Gene Heskett
2005-06-13 2:11 ` Gene Heskett
2005-06-13 6:09 ` Ingo Molnar
2005-06-13 8:37 ` Gene Heskett
2005-06-14 18:24 ` K.R. Foley
2005-06-14 18:54 ` Ingo Molnar
2005-06-14 22:45 ` Daniel Walker
2005-06-15 6:12 ` Ingo Molnar
2005-06-15 9:13 ` Esben Nielsen
2005-06-14 20:37 ` Paul E. McKenney
2005-06-16 3:51 ` K.R. Foley
2005-06-16 7:29 ` Ingo Molnar
2005-06-16 11:22 ` K.R. Foley
2005-06-16 17:32 ` Ingo Molnar
2005-06-16 17:59 ` K.R. Foley
2005-06-16 20:37 ` K.R. Foley
2005-06-17 11:08 ` Ingo Molnar
2005-06-16 20:43 ` Ingo Molnar
2005-06-17 2:06 ` Gene Heskett
2005-06-17 4:53 ` Gene Heskett
2005-06-17 11:18 ` Ingo Molnar
2005-06-17 14:12 ` K.R. Foley
2005-06-17 15:33 ` K.R. Foley
2005-06-17 19:28 ` William Weston
2005-06-17 21:30 ` William Weston
2005-06-18 12:28 ` Ingo Molnar
2005-06-21 1:18 ` William Weston
2005-06-23 2:05 ` William Weston
2005-06-23 7:56 ` Ingo Molnar
2005-06-23 13:45 ` Gene Heskett
2005-06-21 13:10 ` Ingo Molnar
2005-06-21 19:08 ` William Weston
2005-06-21 20:17 ` Benjamin LaHaise
2005-06-21 20:37 ` William Weston
2005-06-21 20:48 ` Benjamin LaHaise
2005-06-22 2:42 ` Gene Heskett
2005-06-22 7:40 ` Ingo Molnar
2005-06-22 13:27 ` Gene Heskett
2005-06-22 13:51 ` Gene Heskett
2005-06-22 14:08 ` Gene Heskett
2005-06-25 4:41 ` Ingo Molnar
2005-06-25 4:47 ` Ingo Molnar
2005-06-25 5:39 ` Gene Heskett
2005-06-25 7:26 ` Gene Heskett
2005-06-25 9:12 ` Ingo Molnar
2005-06-25 13:19 ` Gene Heskett
2005-06-25 14:39 ` Gene Heskett
2005-06-27 19:01 ` Real-Time Preemption, -RT-2.6.12-final-V0.7.50-24 Chuck Harding
2005-06-27 19:42 ` Chuck Harding
2005-06-27 21:08 ` Gene Heskett
2005-06-27 20:09 ` Daniel Walker
2005-06-27 20:28 ` Chuck Harding
2005-06-28 0:50 ` Daniel Walker
2005-06-28 7:53 ` Steven Rostedt
2005-06-28 8:18 ` Ingo Molnar
2005-06-28 8:34 ` Steven Rostedt
2005-06-28 9:12 ` Ingo Molnar
2005-06-28 15:26 ` Michal Schmidt
2005-06-28 15:31 ` Ingo Molnar
2005-06-28 18:50 ` Chuck Harding
2005-06-28 22:16 ` Chuck Harding
2005-06-29 0:32 ` Chuck Harding
2005-06-28 15:54 ` Daniel Walker [this message]
2005-06-21 13:12 ` [patch] Real-Time Preemption, -RT-2.6.12-rc6-V0.7.48-00 Ingo Molnar
[not found] ` <Pine.LNX.4.58.0506211228210.16701@echo.lysdexia.org>
2005-06-22 8:03 ` Ingo Molnar
2005-06-22 8:24 ` Ingo Molnar
2005-06-22 10:08 ` Ingo Molnar
2005-06-22 21:53 ` William Weston
2005-06-22 22:00 ` Ingo Molnar
2005-06-22 23:06 ` William Weston
2005-06-23 0:10 ` Ingo Molnar
2005-06-23 22:11 ` William Weston
2005-06-24 1:46 ` William Weston
2005-06-24 7:06 ` Ingo Molnar
2005-06-24 22:31 ` William Weston
2005-06-25 4:14 ` Ingo Molnar
2005-06-27 4:21 ` William Weston
2005-06-27 8:15 ` Ingo Molnar
2005-06-28 3:32 ` William Weston
2005-06-28 8:10 ` Ingo Molnar
2005-06-28 11:15 ` Ingo Molnar
[not found] ` <Pine.LNX.4.58.0506281745040.10406@echo.lysdexia.org>
2005-06-29 12:54 ` Ingo Molnar
2005-06-30 0:29 ` William Weston
2005-06-27 5:43 ` Gene Heskett
2005-06-27 8:17 ` Ingo Molnar
2005-06-27 17:29 ` Gene Heskett
2005-06-27 19:54 ` Ingo Molnar
2005-06-27 21:17 ` Gene Heskett
2005-06-28 8:28 ` Ingo Molnar
2005-06-28 17:27 Real-Time Preemption, -RT-2.6.12-final-V0.7.50-24 Karsten Wiese
2005-06-28 20:21 ` Ingo Molnar
2005-06-28 20:30 ` Ingo Molnar
2005-06-28 23:51 ` Karsten Wiese
2005-06-29 6:34 ` Ingo Molnar
2005-06-29 7:00 ` Ingo Molnar
2005-06-29 9:15 ` William Weston
2005-06-29 12:56 ` Ingo Molnar
2005-06-30 1:50 ` William Weston
2005-06-29 14:48 ` Karsten Wiese
2005-06-29 19:38 ` Ingo Molnar
2005-06-29 23:36 ` Karsten Wiese
2005-06-30 17:52 ` Karsten Wiese
2005-06-30 20:50 ` Ingo Molnar
2005-06-30 22:27 ` Karsten Wiese
2005-06-30 22:59 ` William Weston
2005-07-01 1:00 ` William Weston
2005-07-01 0:15 ` Karsten Wiese
2005-07-01 7:18 ` Ingo Molnar
2005-07-01 19:34 ` Chuck Harding
2005-07-02 1:46 ` William Weston
2005-07-02 2:02 ` Lee Revell
2005-07-04 8:53 ` William Weston
2005-07-04 11:16 ` Ingo Molnar
2005-07-13 1:18 ` Lee Revell
2005-07-13 1:28 ` Lee Revell
2005-07-13 6:35 ` Ingo Molnar
2005-07-13 17:20 ` Lee Revell
2005-07-03 14:04 ` Ingo Molnar
2005-07-03 18:12 ` Ingo Molnar
2005-07-07 1:26 ` William Weston
2005-07-07 10:48 ` Ingo Molnar
2005-07-12 10:23 Karsten Wiese
2005-07-12 14:02 ` Ingo Molnar
2005-07-12 14:25 ` Daniel Walker
2005-07-12 14:28 ` Ingo Molnar
2005-07-12 14:31 ` Daniel Walker
2005-07-12 14:46 ` Ingo Molnar
2005-07-12 14:56 ` Daniel Walker
2005-07-16 2:11 ` Daniel Walker
2005-07-16 17:11 ` Ingo Molnar
2005-07-12 14:47 ` K.R. Foley
2005-07-12 16:01 ` Ingo Molnar
2005-07-12 16:16 ` K.R. Foley
2005-07-13 0:02 ` William Weston
2005-07-13 0:04 ` Karsten Wiese
2005-07-13 0:08 ` William Weston
2005-07-15 12:05 ` Karsten Wiese
2005-07-16 19:32 ` Ingo Molnar
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