This patches fixes:

BugLink: http://bugs.launchpad.net/bugs/86820

(cherry-pick from commit 1ca56e513a9fd356d5a9e0de45dbe0e189e00386
inux/kernel/git/torvalds/linux-2.6.git)

(upstream patch in 2.6.36, tested and backported on 2.6.32's Lucid for
a month. Patches applies cleanly on 2.6.35-20.29)

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