On Tue, 19 Nov 2013, tip-bot for Srikar Dronamraju wrote:
> Commit-ID: 9abf24d465180f5f2eb26a43545348262f16b771
> Gitweb: http://git.kernel.org/tip/9abf24d465180f5f2eb26a43545348262f16b771
> Author: Srikar Dronamraju <srikar@xxxxxxxxxxxxxxxxxx>
> AuthorDate: Tue, 12 Nov 2013 22:11:26 +0530
> Committer: Ingo Molnar <mingo@xxxxxxxxxx>
> CommitDate: Tue, 19 Nov 2013 17:01:15 +0100
>
> sched: Check sched_domain before computing group power
>
> After commit 863bffc80898 ("sched/fair: Fix group power_orig
> computation"), we can dereference rq->sd before it is set.
>
> Fix this by falling back to power_of() in this case and add a comment
> explaining things.
>
> Signed-off-by: Srikar Dronamraju <srikar@xxxxxxxxxxxxxxxxxx>
> [ Added comment and tweaked patch. ]
> Signed-off-by: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
> Cc: mikey@xxxxxxxxxxx
> Link: http://lkml.kernel.org/r/20131113151718.GN21461@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx
> Signed-off-by: Ingo Molnar <mingo@xxxxxxxxxx>
Acked-by: David Rientjes <rientjes@xxxxxxxxxx>
Fixes a boot failure for me, thanks.
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