[Rd] lstat and NFS server not responding

[Paul Gilbert]

In a somewhat unusual circumstance I have been having trouble when
making R from source and with "R CMD build dse"
forcing the machine to look for an NFS server which was not available,
and then stalling. Our system administrator traced this back to the fact
that these go through all the directories back to "/" , doing an lstat
on everything. He suggests that that seems odd, but it doesn't take long
normally.  The problem was apparently caused by the fact that something
(possible a cdrom) on /mnt had not been unmounted properly.

We have fixed the problem but since it was rather difficult to track
down I thought  I would point it out in case others experience a similar
difficulty. Also, is there a good explanation for doing an lstat on
everything up to /?

Paul Gilbert

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