From: Andrew Morton <akpm@linux-foundation.org>
To: Ingo Molnar <mingo@elte.hu>
Cc: rjw@sisk.pl, linux-kernel@vger.kernel.org, torvalds@linux-foundation.org
Subject: Re: 2.6.24-rc4-git5: Reported regressions from 2.6.23
Date: Mon, 10 Dec 2007 12:59:23 -0800 [thread overview]
Message-ID: <20071210125923.37bd2f10.akpm@linux-foundation.org> (raw)
In-Reply-To: <20071210204212.GA5502@elte.hu>
On Mon, 10 Dec 2007 21:42:12 +0100
Ingo Molnar <mingo@elte.hu> wrote:
> * Rafael J. Wysocki <rjw@sisk.pl> wrote:
>
> > Subject : jiffies counter leaps in 2.6.24-rc3
> > Submitter : Stefano Brivio <stefano.brivio@polimi.it>
> > References : http://lkml.org/lkml/2007/11/24/53
> > http://bugzilla.kernel.org/show_bug.cgi?id=9475
> > Handled-By : Ingo Molnar <mingo@elte.hu>
> > Patch : http://lkml.org/lkml/2007/12/7/132
>
> Linus, Andrew, i need some help deciding what to do about this
> regression. The fixes for this have been tested and resolve the
> regression, but they change printk and other code that runs by default
> and is thus rather invasive so late in the v2.6.24 cycle. This bug
> should only affect CONFIG_PRINTK_TIME=y kernels (a non-default debug
> option) - although some claimed effect was on udelay()/mdelay() too.
>
> i've attached below the queue of 5 patches that fix this problem. They
> have been build and boot tested with more than 1000 random kernels in
> the past few days, so i certainly trust the core and x86 bits of this.
>
> what do you think? Right now i've got them queued up for 2.6.25 in both
> the scheduler-devel and the x86-devel git trees - but can submit them
> for 2.6.24 if it's better if we did them there. I've got no strong
> opinion either way.
printk_clock() doesn't seem terribly important but what's this stuff about
effects on udelay/mdelay? That can be serious if they're getting
shortened.
next prev parent reply other threads:[~2007-12-10 21:00 UTC|newest]
Thread overview: 103+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-12-08 2:40 2.6.24-rc4-git5: Reported regressions from 2.6.23 Rafael J. Wysocki
2007-12-08 6:53 ` Fabio Comolli
2007-12-08 8:28 ` Ingo Molnar
2007-12-08 9:23 ` Andrew Morton
2007-12-08 22:11 ` Rafael J. Wysocki
2007-12-08 9:29 ` Andrew Morton
2007-12-08 22:17 ` Rafael J. Wysocki
2007-12-08 9:30 ` tipc_init(), WARNING: at arch/x86/mm/highmem_32.c:52, [2.6.24-rc4-git5: Reported regressions from 2.6.23] Ingo Molnar
2007-12-08 10:11 ` Andrew Morton
2007-12-08 16:37 ` Matt Mackall
2007-12-08 17:47 ` Linus Torvalds
2007-12-08 17:54 ` Linus Torvalds
2007-12-08 18:09 ` Andrew Morton
2007-12-08 18:37 ` Linus Torvalds
2007-12-08 19:52 ` Ingo Molnar
2007-12-08 20:29 ` Ingo Molnar
2007-12-09 8:20 ` Pekka Enberg
2007-12-09 8:50 ` Ingo Molnar
2007-12-09 9:18 ` Pekka Enberg
2007-12-09 11:51 ` Ingo Molnar
2007-12-09 12:34 ` Ingo Molnar
2007-12-13 22:07 ` Christoph Lameter
2007-12-09 15:59 ` Arjan van de Ven
2007-12-11 6:27 ` Dave Jones
2007-12-11 8:52 ` Ingo Molnar
2007-12-11 19:03 ` Peter Zijlstra
2007-12-14 4:07 ` Christoph Lameter
2007-12-14 7:16 ` Eric Dumazet
2007-12-14 12:49 ` Ingo Molnar
2007-12-17 19:54 ` Christoph Lameter
2007-12-09 7:58 ` Ingo Molnar
2007-12-09 14:17 ` Rafael J. Wysocki
2007-12-08 18:33 ` Matt Mackall
2007-12-08 19:00 ` Matt Mackall
2007-12-09 8:33 ` Pekka Enberg
2007-12-13 22:03 ` Christoph Lameter
2007-12-08 9:36 ` 2.6.24-rc4-git5: Reported regressions from 2.6.23 Andrew Morton
2007-12-08 10:12 ` Andreas Mohr
2007-12-08 10:20 ` Andrew Morton
2007-12-08 10:28 ` Matthew Garrett
2007-12-08 10:55 ` Andreas Mohr
2007-12-09 15:46 ` Tejun Heo
2007-12-09 19:59 ` Andreas Mohr
2007-12-09 6:52 ` Tejun Heo
2007-12-09 14:20 ` Rafael J. Wysocki
2007-12-09 15:11 ` Tejun Heo
2007-12-08 9:42 ` Andrew Morton
2007-12-08 18:57 ` Roland Dreier
2007-12-08 19:40 ` Theodore Tso
2007-12-08 19:55 ` Ingo Molnar
2007-12-08 22:30 ` Rafael J. Wysocki
2007-12-09 2:15 ` Theodore Tso
2007-12-13 10:49 ` Takashi Iwai
2007-12-20 15:42 ` Takashi Iwai
2007-12-08 9:46 ` Andrew Morton
2007-12-08 15:49 ` Alan Stern
2007-12-08 9:52 ` Andrew Morton
2007-12-09 7:00 ` Tejun Heo
2007-12-09 13:42 ` Alan Cox
2007-12-09 15:09 ` Tejun Heo
2007-12-09 15:25 ` Alan Cox
2007-12-09 15:39 ` Tejun Heo
2007-12-09 18:36 ` Linus Torvalds
2007-12-09 21:54 ` Alan Cox
2007-12-09 18:41 ` Linus Torvalds
2007-12-09 22:01 ` Alan Cox
2007-12-09 22:51 ` Ray Lee
2007-12-10 1:57 ` Linus Torvalds
2007-12-10 3:28 ` Alan Cox
2007-12-10 3:38 ` Alan Cox
2007-12-10 15:38 ` Linus Torvalds
2007-12-10 8:21 ` Ingo Molnar
2007-12-10 8:27 ` Tejun Heo
2007-12-10 8:41 ` Ingo Molnar
2007-12-08 10:44 ` Richard Purdie
2007-12-08 22:32 ` Rafael J. Wysocki
2007-12-09 11:54 ` Andrew Morton
2007-12-09 12:05 ` Ingo Molnar
2007-12-09 14:24 ` Rafael J. Wysocki
2007-12-10 20:42 ` Ingo Molnar
2007-12-10 20:57 ` Guillaume Chazarain
2007-12-10 20:59 ` Andrew Morton [this message]
2007-12-10 22:45 ` Ingo Molnar
2007-12-10 23:04 ` Ingo Molnar
2007-12-10 23:34 ` Stefano Brivio
2007-12-10 23:53 ` Guillaume Chazarain
2007-12-11 8:48 ` Ingo Molnar
2007-12-10 23:56 ` Arjan van de Ven
2007-12-11 0:01 ` Guillaume Chazarain
2007-12-11 1:06 ` Arjan van de Ven
2007-12-11 8:43 ` Ingo Molnar
2007-12-11 9:01 ` Ingo Molnar
2007-12-11 21:10 ` Stefano Brivio
2007-12-19 0:58 ` Stefano Brivio
[not found] <fa.qQhD8aJpiTOFaZqjRYwoaG7YT1c@ifi.uio.no>
[not found] ` <fa.yaP86AixGhz5Q7eXSu04pIQp6ho@ifi.uio.no>
[not found] ` <fa.c3k8VKWAx4HIo9zXWbL5Ek0oSBw@ifi.uio.no>
[not found] ` <fa.C8ACnOhs8bXB++vmugf5F34JcJg@ifi.uio.no>
[not found] ` <fa.5o6E6S0UWnARbQPxLe30TvLQIiY@ifi.uio.no>
2007-12-08 18:24 ` Robert Hancock
2007-12-09 5:59 ` Tejun Heo
2007-12-09 21:36 ` Andreas Mohr
2007-12-10 0:04 ` Andreas Mohr
2007-12-10 0:49 ` Andreas Mohr
2007-12-10 1:28 ` Robert Hancock
2007-12-10 2:25 ` Tejun Heo
2007-12-10 3:20 ` Robert Hancock
2007-12-10 2:20 ` Tejun Heo
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