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SubjectRe: NFS file locking broken (take 2)

On Sun, 23 Aug 1998, H. J. Lu wrote:

> > - When building the kernel on an NFS mounted directory, a 'make mrproper'
> > will sometimes fail with numerous complaints about "files in use" when
> > trying to remove the linux/include/config hierarchy. Usually, the second
> > attempt succeeds.
> How easy to reproduce it?

Not easy at all. If I had to guess, I'd say it occurs once for every 20
kernel builds - possibly less frequently than that.

> > I know this is not much to go on, but perhaps it may suggest a set of
> > functions to instrument? Again, these are quite rare but have persisted
> > over quite a number of kernel revs.
> >
> If I can reproduce it, I will take a look.

That's all anyone can ask. I'm far more concerned about the fact that I
cannot verify proper operation of NFS file locking on my systems - see my
reply and testcases of a few minutes ago.


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