Re: [NFS client] NFS locks not released on abnormal process termination

[Philippe Troin]

Trond Myklebust <trond.myklebust@xxxxxxxxxx> writes:

> >>>>> " " == Kenny Simpson <theonetruekenny@xxxxxxxxx> writes:
> 
>      > So, this patch has not found its way into any kernel yet?  Is
>      > there anyone actively persuing this bug?
> 
> Feel free. There are only so many hours in a day, and right now
> mine are pretty much overbooked with NFSv4 stuff...

Please note that this fix only mitigates the bug: it can still occur,
but much less frequently. Before this patch, nfsd would loose track of
the lock (see the enclosed program at the beginning of the thread)
after a few (<5) kills. With the patch, it takes sometimes as many as
300~500 kills before the bugs manifests itself.

Trond, do you think I should push the patch to Marcelo, or should I
wait for a better fix? I don't think Marcelo would accept a partial
fix. I would try to fix it myself, but I have no clue on the inner
workings of lockd/nfsd.

Phil.
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