server locks up when unable to allocate swap
snacktime
snacktime at gmail.com
Sat Sep 17 20:59:12 PDT 2005
On 9/17/05, Chuck Swiger <cswiger at mac.com> wrote:
>
> snacktime wrote:
> > A FBSD 4.7 server this morning locked up and when I got to the data
> center I
> > found a bunch of IO error messages saying the pager couldn't allocate
> needed
> > swap space (or something close to that). Unfortunately these messages
> didn't
> > get logged anywhere that I could find and I didn't have anything on me
> to
> > write them down. The server has 500mb ram and is usually using about 70%
> of
> > that. The server didn't panic, but the console was not responsive so I
> had
> > to do a cold reboot. Everything came back up fine.
> >
> > Any ideas on how to debug this further?
>
> You ran out of swapspace, probably. How big is your swap partition, and
> did
> you notice unusually high number of processes running?
1 GB swap, 500mb ram. I looked in the logs for all the processes that were
running and couldn't find anything out of the ordinary. My feeling is that I
ran out of swap also, although it's bugging me because I can't yet find what
caused it.
You are running a version of FreeBSD which is significantly out-of-date, and
> you ought to consider updating to 4.11. You should also update your ports
> or
> at least run portaudit to see whether the Apache, MySQL, and so forth are
> OK.
All the ports are up to date. I've been putting off upgrading the server,
but it does have most of the security patches applied.
Chris
--
> -Chuck
>
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