From: Ingo Molnar <mingo@elte.hu>
To: gregory.haskins@gmail.com
Cc: ego@in.ibm.com, Thomas Gleixner <tglx@linutronix.de>,
linux-kernel@vger.kernel.org,
Dhaval Giani <dhaval@linux.vnet.ibm.com>
Subject: Re: [PATCH] x86: Don't send RESCHEDULE_VECTOR to offlined cpus
Date: Tue, 11 Mar 2008 10:21:48 +0100 [thread overview]
Message-ID: <20080311092148.GM25110@elte.hu> (raw)
In-Reply-To: <47D56399.1020504@gmail.com>
* Gregory Haskins <gregory.haskins.ml@gmail.com> wrote:
>> Yup, this afternoon while running cpu-hotplug stress tests
>> (http://lkml.org/lkml/2008/3/3/11) in parallel with kern-bench, I got
>> this on the serial console.
>
> Note that this may be a side-effect of the bug we are chasing with the
> rd->online problem.
>
> E.g. if the rd->online issue is causing us to route tasks to dead
> CPUs, this phenomenon would probably go away once rd->online is fixed
> (which I believe it is with the patches that were submitted).
yeah, that makes sense. I've applied your patch nevertheless because it
is the better failure mode for that code.
Ingo
prev parent reply other threads:[~2008-03-11 9:22 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-03-10 12:14 Gautham R Shenoy
2008-03-10 12:24 ` Ingo Molnar
2008-03-10 12:54 ` Gautham R Shenoy
2008-03-10 15:32 ` Roel Kluin
2008-03-10 16:36 ` Gregory Haskins
2008-03-11 9:21 ` Ingo Molnar [this message]
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