On Friday 30 January 2009 05:20:49 Johannes Berg wrote:
> Hi,
>
> Every time I shut down my machine with a 2.6.29-rc2 kernel, I get a
> lockdep report that scrolls off.
...
> halt is trying to acquire lock
> (&per_cpu(cpu_policy_rwsem, cpu)){---}
>
> but task is already holding lock
> (&cpu_hotplug.lock){--..}
Hi Johannes,
This looks much like the work_on_cpu()-getting-hotplug-lock problem which caused us to stop work_on_cpu doing that. -rc3 has that fix; any chance of a re-test?
Thanks,
Rusty.
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