x86: don't disable the APIC if it hasn't been mapped yet

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When the kernel panics early for some unrelated reason
there would be eventually an early exception inside panic because
clear_local_APIC tried to disable the not yet mapped APIC.
Check for that explicitely.

Signed-off-by: Andi Kleen <ak@suse.de>
Signed-off-by: Ingo Molnar <mingo@elte.hu>
Signed-off-by: Thomas Gleixner <tglx@linutronix.de>

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Andi Kleen 2008-01-30 13:33:17 +01:00 • committed by Ingo Molnar

parent ca74a6f84e

commit d3432896da

2 changed files with 15 additions and 5 deletions

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11

arch/x86/kernel/apic_32.c

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9

arch/x86/kernel/apic_64.c

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