From: Yinghai Lu <yinghai@kernel.org>
Date: Sat, 31 Jan 2009 22:50:07 +0000 (-0800)
Subject: irq, x86: fix lock status with numa_migrate_irq_desc
X-Git-Tag: v2.6.29-rc4~50^2~4
X-Git-Url: http://git.openpandora.org/cgi-bin/gitweb.cgi?a=commitdiff_plain;h=10b888d6cec2688e65e9e128b14bf98ecd199da2;p=pandora-kernel.git

irq, x86: fix lock status with numa_migrate_irq_desc

Eric Paris reported:

> I have an hp dl785g5 which is unable to successfully run
> 2.6.29-0.66.rc3.fc11.x86_64 or 2.6.29-rc2-next-20090126.  During bootup
> (early in userspace daemons starting) I get the below BUG, which quickly
> renders the machine dead.  I assume it is because sparse_irq_lock never
> gets released when the BUG kills that task.

Adjust lock sequence when migrating a descriptor with
CONFIG_NUMA_MIGRATE_IRQ_DESC enabled.

Signed-off-by: Yinghai Lu <yinghai@kernel.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
---

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