Revert "x86, reboot: Use NMI instead of REBOOT_VECTOR to stop cpus"

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This reverts commit 3603a2512f.

Originally I wanted a better hammer to shutdown cpus during
panic. However, this really steps on the toes of various
spinlocks in the panic path.  Sometimes it is easier to wait for
the IRQ to become re-enabled to indictate the cpu left the
critical region and then shutdown the cpu.

The next patch moves the NMI addition after the IRQ part.  To
make it easier to see the logic of everything, revert this patch
and apply the next simpler patch.

Signed-off-by: Don Zickus <dzickus@redhat.com>
Cc: Peter Zijlstra <peterz@infradead.org>
Link: http://lkml.kernel.org/r/1336761675-24296-2-git-send-email-dzickus@redhat.com
Signed-off-by: Ingo Molnar <mingo@kernel.org>

...

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Don Zickus 2012-05-11 14:41:13 -04:00 • committed by Ingo Molnar

parent 144d102b92

commit 5d2b86d90f

1 changed files with 2 additions and 57 deletions

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arch/x86/kernel/smp.c

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