Simon Peyton Jones <simo...@microsoft.com> writes: > | Hmm. Here's a shot in the dark: is home home directory mounted via NFS by > | any chance? > > Direct hit! (for the shot in the dark). Yes it's NFS mounted I think. > So what?
Hi Simon, Sorry for the rather belated reply; I was knocked off my feet for a few days by a rather nasty tetanus vaccination. Anyways, I have a patch which I suspect will help. It seems that some NFS implementations incur a rather long delay (order of seconds) between the time a file handle is closed and an open flock lock on the handle being released. I suspect this delay won't exist in cases where we explicitly funlock before closing the file handle. I have implemented this in wip/ghc-pkg-locking. Do you think you could give this branch a try? If it still fails then we'll have to try to debug things in-situ. Cheers, - Ben
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