stray mappings left behind by xfs make xen kernels crash -> appropriate for gutsy?

[Ben Collins]

On Wed, 2007-12-05 at 15:26 +0100, Andres Freund wrote:
> Hi,
> 
> after reading through https://wiki.ubuntu.com/StableReleaseUpdates I think 
> that bug 164904 is appropriate for gutsy.
> Problem:
> - XFS delays vunmap and leaves stale mappings. This is considered wrong even 
> in normal kernel. But as Xen uses those mappings memory corruption can occur
> 
> Why I think its appropriate for gutsy
> - It causes, sometimes silent, data-corruption and crashes
> - Hard to diagnose as the backtraces are quite random
> - Obviously correct fix, as the fix is the fallback currently used in tight 
> memory conditions.
> - Patch is applied upstream
> 
> Any other Information needed?

Just append this information to the bug. The patch (or better yet the
commit ID from upstream) as well. And vote it in for gutsy.

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