irq, x86: fix lock status with numa_migrate_irq_desc

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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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This commit is contained in:

Yinghai Lu 2009-01-31 14:50:07 -08:00 • committed by Ingo Molnar

parent 9a8ecae87a

commit 10b888d6ce

2 changed files with 9 additions and 3 deletions

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5

arch/x86/kernel/io_apic.c

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7

kernel/irq/numa_migrate.c

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