On Thu, Mar 31, 2011 at 05:06:42PM -0400, Calvin Walton wrote:
> On Wed, 2011-03-30 at 17:19 -0400, Josef Bacik wrote:
> > Hello,
> > 
> > Just found a big bug in the free space caching stuff that will result in 
> > early ENOSPC.  I'm working on fixing this bug, but it won't be until 
> > tomorrow that I'll have it completely working, so for now make sure to 
> > mount -o clear_cache so that it just clears the cache and doesn't use it.
> > 
> > NOTE: It doesn't cause problems other than early ENOSPC, you won't get 
> > corruption or anything like that, tho you could possibly panic.
> > 
> > Sorry for the inconvenience.  Thanks,
> 
> Any chance you could provide a little more information about which
> kernels are affected? Is it any kernel with free space cache support (is
> 2.6.38.x included?) - and if so, do you plan on submitting the fix to
> the stable kernel series?
>

Yeah it affects any kernel that has the free space cache feature, which I think
started in .37.  Course you have to have specifically enabled it, so it's not a
huge problem.  I've submitted a patch, but since it's currently an optional
feature I don't think it needs to go to stable.  Thanks,

Josef 
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