ftp.freebsd.org

[Robert Watson]

On Sun, 24 Oct 2004, Erwin Lansing wrote:

> > The Danish part of ftp.freebsd.org (ftp.beastie.tdk.net) does not seem
> > to respond, I have poked one of the admins, but since it's late night
> > here in Denmark, it will probably be some hours before anyone can look
> > at the problem.
> > 
> beatie paniced at about 3 am CEST and was rebooted.
> 
> I don't know what caused the panic, but I see quite a lot of:
> Oct 23 04:51:29 ftp /kernel: swap_pager: indefinite wait buffer: device:
> #da/0x2 0001, blkno: 544, size: 4096
> Oct 23 04:52:07 ftp /kernel: swap_pager: indefinite wait buffer: device:
> #da/0x2 0001, blkno: 544, size: 4096

The swap pager will wait hz*20 (20 seconds) for pages to be read back in
from the swap space -- if it doesn't hear back in that time, it generates
the above warning and then continue waiting.  Typically, that kind of wait
might occur because of a hardware problem.  Did you see any related
console output from the controller/device driver?  Typically having swap
space disappear out from under the system is not good for the health of
the system...

Robert N M Watson             FreeBSD Core Team, TrustedBSD Projects
robert at fledge.watson.org      Principal Research Scientist, McAfee Research