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sched: Always initialize cpu-power

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Often when we run into mis-shapen topologies the balance iteration
fails to update the cpu power properly and we'll end up in /0 traps.

Always initialize the cpu-power to a semi-sane value so that we can
at least boot the machine, even if the load-balancer might not
function correctly.

Signed-off-by: Peter Zijlstra <a.p.zijlstra@chello.nl>
Link: http://lkml.kernel.org/n/tip-3lbhyj25sr169ha7z3qht5na@git.kernel.org
Signed-off-by: Ingo Molnar <mingo@kernel.org>
This commit is contained in:
Peter Zijlstra
2012-05-31 12:05:32 +02:00
committed by Ingo Molnar
parent c117487687
commit c3decf0dfb
2 changed files with 13 additions and 2 deletions
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2
kernel/sched/fair.c
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@@ -3602,7 +3602,7 @@ void update_group_power(struct sched_domain *sd, int cpu)
} while (group != child->groups);
}
sdg->sgp->power = power;
sdg->sgp->power_orig = sdg->sgp->power = power;
}
/*