From: Ingo Molnar <mingo@elte.hu>
To: "Sébastien Dugué" <sebastien.dugue@bull.net>
Cc: Linux RT Users <linux-rt-users@vger.kernel.org>,
linux-kernel <linux-kernel@vger.kernel.org>,
Thomas Gleixner <tglx@linutronix.de>,
Jean Pierre Dion <jean-pierre.dion@bull.net>,
Darren Hart <dvhltc@us.ibm.com>,
john stultz <johnstul@us.ibm.com>,
Josh Triplett <josht@linux.vnet.ibm.com>
Subject: Re: [PATCH RT] Fix RT balancing tasks pulling
Date: Wed, 25 Jul 2007 09:27:00 +0200 [thread overview]
Message-ID: <20070725072700.GC26955@elte.hu> (raw)
In-Reply-To: <20070724154202.224f12e8@frecb000686.frec.bull.fr>
* Sébastien Dugué <sebastien.dugue@bull.net> wrote:
> Hi Ingo, Thomas,
>
> this one-liner fixes a bug in balance_rt_tasks() which sometimes
> manifests by having a lower prio task being scheduled while a higher
> prio task is sitting waiting on another runqueue.
>
> This is pretty hard to reproduce on low cpu count machines, for
> example, I had to have sched_football run in a loop for ~38h before it
> failed on a dual HT Xeon box.
really nice catch! Applied.
Ingo
next prev parent reply other threads:[~2007-07-25 7:28 UTC|newest]
Thread overview: 5+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-07-24 13:42 Sébastien Dugué
2007-07-25 7:27 ` Ingo Molnar [this message]
2007-07-30 21:50 ` Josh Triplett
2007-07-31 11:48 ` Sébastien Dugué
2007-08-01 0:18 ` Josh Triplett
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