x86: Only call smp_processor_id in non-preempt cases

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There are some paths that walk the die_chain with preemption on.
Make sure we are in an NMI call before we start doing anything.

This was triggered by do_general_protection calling notify_die
with DIE_GPF.

Reported-by: Jan Kiszka <jan.kiszka@web.de>
Signed-off-by: Don Zickus <dzickus@redhat.com>
LKML-Reference: <1294198689-15447-1-git-send-email-dzickus@redhat.com>
Signed-off-by: Ingo Molnar <mingo@elte.hu>

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Don Zickus 2011-01-04 22:38:07 -05:00 • committed by Ingo Molnar

parent aef1b9cef7

commit 9ab181fa9f

1 changed files with 2 additions and 1 deletions

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arch/x86/kernel/apic/hw_nmi.c

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