Subject: Re: NetBSD Problem Report #3892
To: None <email@example.com>
From: None <firstname.lastname@example.org>
Date: 02/10/1999 22:31:46
> > (a) Pages simply aren't being cleaned fast enough.
> > -or-
> > (b) Clean pages aren't moving from the inactive list to the free
> > list fast enough.
> Incidently, I noticed an ugly problem with paging to local disk, too,
> last night -- when I ran out of physmem the machine went bonkers.
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.
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.)
Hadn't have time to dig further - sorry.