From: Jeremy Fitzhardinge <jeremy@goop.org>
To: Andrew Morton <akpm@linux-foundation.org>
Cc: Ingo Molnar <mingo@elte.hu>,
Linux Kernel <linux-kernel@vger.kernel.org>,
virtualization@lists.osdl.org,
Prarit Bhargava <prarit@redhat.com>,
Eric Dumazet <dada1@cosmosbay.com>,
Thomas Gleixner <tglx@linutronix.de>,
john stultz <johnstul@us.ibm.com>,
Zachary Amsden <zach@vmware.com>,
James Morris <jmorris@namei.org>, Dan Hecht <dhecht@vmware.com>,
Paul Mackerras <paulus@samba.org>,
Martin Schwidefsky <schwidefsky@de.ibm.com>,
Chris Lalancette <clalance@redhat.com>,
Rick Lindsley <ricklind@us.ibm.com>, Andi Kleen <ak@suse.de>
Subject: Re: [patch 1/4] Ignore stolen time in the softlockup watchdog
Date: Tue, 24 Apr 2007 11:16:09 -0700 [thread overview]
Message-ID: <462E4969.6070802@goop.org> (raw)
In-Reply-To: <20070424105738.e0ce36a9.akpm@linux-foundation.org>
Andrew Morton wrote:
> I said that because the damn thing went away when I was hunting it down
> because I lost the config and was unable to remember the right combination
> of debug settings. Fortunately it later came back so I took care to
> preserve the config.
>
sched_clock doesn't *do* anything except flap interrupts. Oh, wait, have
you got Andi's bugfixed version of the sched_clock patch? The first
version did a local_save_flags rather than a local_irq_save.
>> Hm, is it caused by using sched_clock() to generate the printk
>> timestamps while generating the lock test output?
>>
>
> Conceivably. What does that locking API test do?
>
Didn't make a difference here. Building your config now.
> I was using printk timestamps and netconsole at the time.
>
Ah, great, now you're going to make me setup netconsole...
J
next prev parent reply other threads:[~2007-04-24 18:16 UTC|newest]
Thread overview: 33+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-03-27 21:49 [patch 0/4] Revised softlockup watchdog improvement patches Jeremy Fitzhardinge
2007-03-27 21:49 ` [patch 1/4] Ignore stolen time in the softlockup watchdog Jeremy Fitzhardinge
2007-04-24 6:49 ` Andrew Morton
2007-04-24 6:58 ` Jeremy Fitzhardinge
2007-04-24 7:09 ` Andrew Morton
2007-04-24 17:51 ` Jeremy Fitzhardinge
2007-04-24 17:57 ` Andrew Morton
2007-04-24 18:16 ` Jeremy Fitzhardinge [this message]
2007-04-24 18:32 ` Andrew Morton
2007-04-24 20:00 ` Jeremy Fitzhardinge
2007-04-24 20:14 ` Andrew Morton
2007-04-24 20:46 ` Jeremy Fitzhardinge
2007-04-24 20:24 ` Jeremy Fitzhardinge
2007-04-24 20:33 ` Andrew Morton
2007-04-24 20:48 ` Jeremy Fitzhardinge
2007-04-24 20:52 ` Daniel Walker
2007-04-24 20:59 ` Ingo Molnar
2007-04-24 21:01 ` Daniel Walker
2007-04-24 21:14 ` Andrew Morton
2007-04-24 21:20 ` Andi Kleen
2007-04-24 21:33 ` Daniel Walker
2007-03-27 21:49 ` [patch 2/4] percpu enable flag for " Jeremy Fitzhardinge
2007-03-27 21:49 ` [patch 3/4] Locally disable the softlockup watchdog rather than touching it Jeremy Fitzhardinge
2007-03-28 13:33 ` Prarit Bhargava
2007-03-28 13:50 ` Andi Kleen
2007-03-28 14:00 ` Prarit Bhargava
2007-03-28 14:09 ` Andi Kleen
2007-03-28 14:13 ` Prarit Bhargava
2007-03-28 14:44 ` Jeremy Fitzhardinge
2007-03-28 14:51 ` Prarit Bhargava
2007-03-28 15:22 ` Jeremy Fitzhardinge
2007-03-28 15:27 ` Prarit Bhargava
2007-03-27 21:49 ` [patch 4/4] Add global disable/enable for softlockup watchdog Jeremy Fitzhardinge
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