svn commit: r191204 - in stable/7/sys: . contrib/pf
dev/ath/ath_hal dev/cxgb vm
John Baldwin
jhb at freebsd.org
Fri Apr 17 08:57:10 PDT 2009
On Friday 17 April 2009 11:35:16 am Alan Cox wrote:
> Author: alc
> Date: Fri Apr 17 15:35:16 2009
> New Revision: 191204
> URL: http://svn.freebsd.org/changeset/base/191204
>
> Log:
> MFC r175055
> Defer setting either PG_CACHED or PG_FREE until after the free page
> queues lock is acquired. Otherwise, the state of a reservation's
> pages' flags and its population count can be inconsistent. That could
> result in a page being freed twice.
>
> (This change should have been included in the MFC of the superpages
> support.)
>
> Thanks to: pho for an illuminating crash
Thanks.
Pointy hat to: jhb
--
John Baldwin
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