From owner-freebsd-bugs Sat Apr 15 6:21: 3 2000 Delivered-To: freebsd-bugs@freebsd.org Received: from ewok.creative.net.au (fuzzy.aussie.com.au [203.30.44.82]) by hub.freebsd.org (Postfix) with SMTP id 34E3537B91E for ; Sat, 15 Apr 2000 06:21:00 -0700 (PDT) (envelope-from freebsd@ewok.creative.net.au) Received: (qmail 53958 invoked by uid 1008); 15 Apr 2000 13:20:54 -0000 Date: Sat, 15 Apr 2000 21:20:54 +0800 From: Adrian Chadd To: Matthew West Cc: Rahul Dhesi , Gregory Bond , freebsd-bugs@FreeBSD.ORG Subject: Re: kern/17122: crash due to: softdep_disk_write_com Message-ID: <20000415212053.A52908@ewok.creative.net.au> References: <200004140623.QAA04267@lightning.itga.com.au> <20000414192543.A94912@apotheosis.org.za> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii X-Mailer: Mutt 0.95.4i In-Reply-To: <20000414192543.A94912@apotheosis.org.za>; from Matthew West on Fri, Apr 14, 2000 at 07:25:43PM +0200 Sender: owner-freebsd-bugs@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org On Fri, Apr 14, 2000, Matthew West wrote: > On Thu, Apr 13, 2000 at 11:38:45PM -0700, Rahul Dhesi wrote: > > In my case the machine does many things: > > squid proxy cache > > incoming and outgoing mail > > NFS service for exported mail file system > > general-purpose shell access for users > > recursive name service for PPP users > > authoritative name service for one busy DNS zone > > We have several FreeBSD machines running quite smoothly with softupdates > enabled, under varying loads. The only time softupdates proved to cause > instability was on our (heavily loaded) NFS server. Disabling softupdates > made the crashes go away. The problem existed in 3.4-RELEASE and is still > present in 4.0-RELEASE. > Squid has some interesting UFS access patterns. How loaded is your squid? Pull up the cachemgr script, and email me the output of the general runtime statistics. If your squid is cycling through objects at a high rate it is probably confusing softupdates. Adrian To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-bugs" in the body of the message