Subject: Re: NetBSD Problem Report #3892
To: None <M.Drochner@fz-juelich.de>
From: Jason Thorpe <email@example.com>
Date: 02/10/1999 13:39:07
On Wed, 10 Feb 1999 22:31:46 +0100
> I've noticed NFS swapping problems as well - there are situations
> where a diskless machine simply doesn't recover from, in particular
> when doing a huge compile (typilally C++) and the "scheduler - no room
> for xxx" appears. Adding a local disk for swapping helped here.
I had this happen A LOT on a diskless Shark, and I made the problem
recoverable by making the pmap sleep for PT pages.
I.e. have the pagedaemon a chance to catch up and put pages on the free
list, and the system would recover.
> Otoh, there might be general NFS problems too - it seems that a
> diskless box doesn't survive an half-hour NFS server outage (v3 on UDP).
> A lot of processes hang in "nfs_hashlock". (I think it was in "nfsrcvlk"
> not so long ago.)
It's definitely true that there is a problem with "connected" NFS and
-- Jason R. Thorpe <firstname.lastname@example.org>