Fix SMP poweroff hangs

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We need to disable all CPUs other than the boot CPU (usually 0) before
attempting to power-off modern SMP machines.  This fixes the
hang-on-poweroff issue on my MythTV SMP box, and also on Thomas Gleixner's
new toybox.

Signed-off-by: Mark Lord <mlord@pobox.com>
Acked-by: Thomas Gleixner <tglx@linutronix.de>
Cc: "Rafael J. Wysocki" <rjw@sisk.pl>
Signed-off-by: Andrew Morton <akpm@linux-foundation.org>
Signed-off-by: Linus Torvalds <torvalds@linux-foundation.org>

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Mark Lord 2007-10-01 01:20:10 -07:00 • committed by Linus Torvalds

parent 281e0e3b34

commit 4047727e5a

1 changed files with 2 additions and 0 deletions

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kernel/sys.c

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