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SubjectRe: [PATCH] active_load_balance() deadlock


On Tue, 1 Jun 2004, Bjorn Helgaas wrote:
>
> active_load_balance() looks susceptible to deadlock when busiest==rq.
> Without the following patch, my 128-way box deadlocks consistently
> during boot-time driver init.

Makes sense. The regular "load_balance()" already has that test, although
it also makes it a WARN_ON() for some unexplained reason (I assume
find_busiest_group() isn't supposed to find the local group, although it
doesn't seem to be documented anywhere).

Ingo, Andrew?

Linus
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