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Date:      Wed, 9 Feb 2005 23:58:11 +0000 (GMT)
From:      Robert Watson <rwatson@FreeBSD.org>
To:        ALeine <aleine@austrosearch.net>
Cc:        freebsd-hackers@freebsd.org
Subject:   Re: Fatal trap 12: page fault while in kernel mode - HELP! 
Message-ID:  <Pine.NEB.3.96L.1050209235737.26319c-100000@fledge.watson.org>
In-Reply-To: <200502090334.j193YZSU082622@marlena.vvi.at>

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On Tue, 8 Feb 2005, ALeine wrote:

> drice@globat.com wrote: 
> 
> > We have two NFS file servers running FreeBSD 5.2.1-RELEASE-p9 on
> > Dell Poweredge 1750's that crash randomly. They each have about 1.3TB
> > of disk. They are used to server email and web content to several
> > WEB/EMAIL servers. Followin is the console log messages and the kernel boot
> > messages. Any ideas as to what the problem may be?
> 
> Try turning TCP SACK off by putting net.inet.tcp.sack.enable=0 in
> sysctl.conf. 

TCP SACK first shipped in 5.3...

Robert N M Watson




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