x86: I/O APIC: clean up the 8259A on a NMI watchdog failure

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There is no point in keeping the 8259A enabled if the I/O APIC NMI
watchdog has failed and the 8259A is not used to pass through regular
timer interrupts.  This fixes problems with some systems where some logic
gets confused.

Signed-off-by: Maciej W. Rozycki <macro@linux-mips.org>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

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This commit is contained in:

Maciej W. Rozycki 2008-05-21 22:10:22 +01:00 • committed by Ingo Molnar

parent a1133d8e4f

commit 35542c5ebc

5 changed files with 21 additions and 2 deletions

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2

arch/x86/kernel/io_apic_32.c

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2

arch/x86/kernel/io_apic_64.c

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4

arch/x86/kernel/nmi_32.c

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11

arch/x86/kernel/nmi_64.c

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4

include/asm-x86/io_apic.h

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