System hangs up every day

[Дмитрий Комалеев]

Hello everybody

Unfortunately my problem still doesn't have any solution.
But I have an interesting observation. The gateway freezes very quickly, if torrent client programs are running on workstations.
I assume the cause of the problem consists in many number of TCP/IP connections that torrent client establishes.
Any ideas?
Maybe I can tune somehow a TCP/IP via kernel, sysctl or pf settings?

> There is one FreeBSD server in our company. The server platform is: Supermicro SuperServer 6014V-T2B (2x Intel > Xeon 2.8, 1Gb RAM, 3WARE 3W-8006-2LP RAID-Controller).
> The server works as:
> - a gateway between LAN and Internet
> - an Intranet web- and database server (Apache + MySQL + PHP)
> - a firewall (OpenBSD pf)
> - a transparent proxy server (Squid)
> A mounthly traffic through this server is about 100Gb. There is about 200 internet users in our conpany.
> FreeBSD 6.2-RELEASE-p8

> This server hangs up every day without any messages in the log files and on the system console. A keyboard dosen't work too. I can make only hard reset and after restart coredump files are not appearing.

> If I make and install a kernel with SMP options the system under working load begins hang up every two hours.

> The two days "Memtest" gave no result.
> I tried to install the newest Intel ethernet adapter driver, but without any results.
> As an experiment I tried also to plug a system HDD to another sever platform (SuperServer 6015V-TB), but system hanging didn't stop.
> I think that it is not only hardware problem.
> Linux (Gentoo) and Windows server 2003 on this hardware were working fine.