On Thu, Mar 24, 2011 at 11:28:07PM +0100, Adam Lackorzynski wrote:
>
> On Thu Mar 24, 2011 at 13:51:06 -0400, J. Bruce Fields wrote:
> > On Thu, Mar 24, 2011 at 01:17:05PM -0400, Christoph Hellwig wrote:
> > > On Wed, Mar 23, 2011 at 11:30:17PM +0100, Adam Lackorzynski wrote:
> > > > I probably mistyped something and thus bisected again:
> > >
> > > maybe this is just a symptom. When was the nfs4 code converted
> > > to just use a single open struct file, and what are the lifetime
> > > rules for it? It would easily be that a long alive file might
> > > make XFS keep persistent preallocations longer or similar issues.
> >
> > Definitely, the commit he's bisect to there seems much more likely to be
> > a culprit. I'll take a closer look....
> >
> > > Adam, can you create a loop filesystem with ext3 or something else
> > > on it and see if the problem is XFS-specific?
> >
> > Originally it sounded like he was able to reproduce this only on one
> > specific filesystem so I wondered whether there was something particular
> > to that filesystem.
>
> I just found out it happens also with a newly created xfs and also with
> ext3 and ext4. The reason that I did not see that initially is that the
> script I'm using needs to be on the same fs which wasn't the case when I
> initially tried it with a new fs. The sequence I'm using is:
Ah-hah, got it. So the leak's probably of a delegation on the file
containing the script itself. OK, I should be able to fix that, thanks!
--b.
>
> # mount x.x.x:/home /tmp/st
> # su - foo
> $ cd /tmp/st/foo/x
> $ ../test-script
> foo@host:/tmp/st/foo/x$ ../test-script
> Filesystem Inodes IUsed IFree IUse% Mounted on
> x.x.x:/home 39321600 15 39321585 1% /tmp/st
> Filesystem Inodes IUsed IFree IUse% Mounted on
> x.x.x:/home 39321600 16 39321584 1% /tmp/st
> Filesystem Inodes IUsed IFree IUse% Mounted on
> x.x.x:/home 39321600 16 39321584 1% /tmp/st
>
>
>
> test-script:
> #! /bin/sh
>
> df -i .
> cp /bin/ls x1
> df -i .
> cat x1 > /dev/null
> rm x1
> df -i .
>
>
>
>
>
>
> Adam
> --
> Adam adam@xxxxxxxxxxxxxxxxxxxx
> Lackorzynski http://os.inf.tu-dresden.de/~adam/
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