somehow the automounter affects the kernel based NFS. I remember it mentioned
here a while ago, but no one responded (or maybe I didnīt notice :-).
Anyway, I used a vanilla 2.1.115 patched against the knfsd-980815, H.J.Lu
mailed a few days ago, the problem is always the same since I started to test
the kernel NFS for our purposes.
I transfered a large file (about 100 MB) from a SUN to the linux NFS Server,
the mounted directory is a local one on the linux machine. In parallel, there
is an automounter running, mounting home directories on demand, but the
automounter is in no way involved in this particular tranfer.
After a while, the automounter tries to unmount my home directory, exactly at
this moment, the NFS transfer stops with an I/O-Error on the Client (I tested
AIX,HP/UX too and itīs still the same).
The relevant part of my messages look like this:
Aug 19 18:35:39 pfrisch automount[152]: >> umount: /homes/pfrisch: device is busy
Aug 19 18:35:39 pfrisch automount[152]: could not unmount /homes/pfrisch
... and sometimes
Aug 19 18:35:41 pfrisch kernel: Socket destroy delayed (r=0 w=144).
After shutting down the automounter, everything works okay (besides a horrible
performance, but maybe thatīs my fault using wrong options:-).
Any ideas ?
--
Dr. Patrick Frisch
A.I.S. GmbH, Wasserstr. 219, 44799 Bochum
Tel.: +49-234/9734-542
e-mail: p.frisch@ais-gmbh.de
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