swap_pager: indefinite wait

[Jeremy Chadwick]

On Mon, Nov 17, 2008 at 05:18:33PM +0100, Sossi Andrej wrote:
> Hello,
> I manage a www (apache), database (postgresql) and e-mail (qmail) with
> about 100 Internet domains.
> We recently purchased  a DELL MD3000i server with data access through
> ISCSI protocol.
> I installed  a new server with FreeBSD 7.0 compiled kernel with ISCSI
> (v. 2.1) and SCHED_ULE scheduler.
> The server's local disk configuration is:
> 512 MB /
> 1024 MB SWAP
> 254 MB / var
> 2048MB / var/ qmail
> 512 MB /tmp
> ~ 70 GB /usr
>
> The apache data (/usr/local/www), postgre (/usr/local/pgsql) and qmail
> (/usr/local/vpopmail) are instead on the partition on ISCSI. After
> installing all the necessary softwares I tested the machine as mail
> server for a one domain and everything worked fine for 2-3 days.
> I wanted to test the correct functioning of qmail and of the
> reading/writing on ISCSI. On the end of testing I  decided to transfer
> all of data (www, DB and e-mail) on the FreeBSD 7.0. I compressed all
> the data on the original server (on tar.gz format). I transferred them
> on the new server and started to decompress the files. Www data have
> been decompressed correctly on the ISCSI disk. But while the messages
> were being decompressed (~80GB of tar.gz) and all the DB were being
> restored, the server crashed.
> The error shown was:
>
> swap_pager: indefinite wait buffer: bufobj: 0, blkno: 31, size: 4096
>
> This message repeated every 30 seconds.

Is this of any help?

http://lists.freebsd.org/pipermail/freebsd-scsi/2008-February/003383.html
http://lists.freebsd.org/pipermail/freebsd-scsi/2008-February/003387.html

-- 
| Jeremy Chadwick                                jdc at parodius.com |
| Parodius Networking                       http://www.parodius.com/ |
| UNIX Systems Administrator                  Mountain View, CA, USA |
| Making life hard for others since 1977.              PGP: 4BD6C0CB |