svn commit: r212115 - head/sys/kern
John Baldwin
jhb at freebsd.org
Wed Sep 1 21:31:19 UTC 2010
On Wednesday, September 01, 2010 4:32:48 pm Matthew D Fleming wrote:
> Author: mdf
> Date: Wed Sep 1 20:32:47 2010
> New Revision: 212115
> URL: http://svn.freebsd.org/changeset/base/212115
>
> Log:
> Fix a bug with sched_affinity() where it checks td_pinned of another
> thread in a racy manner, which can lead to attempting to migrate a
> thread that is pinned to a CPU. Instead, have sched_switch() determine
> which CPU a thread should run on if the current one is not allowed.
>
> KASSERT in sched_bind() that the thread is not yet pinned to a CPU.
>
> KASSERT in sched_switch() that only migratable threads or those moving
> due to a sched_bind() are changing CPUs.
>
> sched_affinity code came from jhb at .
>
> MFC after: 2 weeks
Cool, I guess this fixed it in your tests then?
--
John Baldwin
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