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- Path: sparky!uunet!cis.ohio-state.edu!ucbvax!bloom-beacon!bloom-picayune.mit.edu!news.mit.edu!raeburn
- From: raeburn@cambridge.cygnus.com (Ken Raeburn)
- Newsgroups: comp.unix.bsd
- Subject: 386bsd nfs hang problem -- some data, temporary workaround
- Message-ID: <RAEBURN.92Jul21181551@cambridge.cygnus.com>
- Date: 21 Jul 92 22:15:59 GMT
- Sender: news@athena.mit.edu (News system)
- Organization: Cygnus Support, Cambridge MA
- Lines: 18
- Nntp-Posting-Host: cambridge.cygnus.com
-
- I reported previously that I was seeing problems reading files over
- NFS using the ne2000 driver; timeouts would eventually be reported, no
- data would be read. Listing files and directories (small ones
- anyways) were not a problem.
-
- After playing with etherfind and kernel printfs, I've come to this
- conclusion: Fragmented 8K UDP packets from the NFS server are not
- reaching the UDP layer in 386bsd. The Sun is sending them (according
- to another Sun spying on the network), but the UDP input routine is
- never called. I don't know if the bug here is on the 386bsd or Sun
- side, and won't have time to look into it in the next couple of days.
-
- In the meantime, mounting NFS file systems with "rsize=1024" does get
- rid of this problem.
-
- (It does nothing about TCP being slow, though.)
-
- Ken
-