From owner-freebsd-hackers Fri Oct 19 21:58:30 2001 Delivered-To: freebsd-hackers@freebsd.org Received: from mw1.texas.net (mw1.texas.net [206.127.30.11]) by hub.freebsd.org (Postfix) with ESMTP id 67D3637B403 for ; Fri, 19 Oct 2001 21:58:28 -0700 (PDT) Received: from staff3.texas.net (staff3.texas.net [207.207.0.40]) by mw1.texas.net (8.11.6/8.11.6) with ESMTP id f9K4wRc05426; Fri, 19 Oct 2001 23:58:27 -0500 (CDT) Received: (from doug@localhost) by staff3.texas.net (8.11.6/8.11.6) id f9K4wRb01171; Fri, 19 Oct 2001 23:58:27 -0500 (CDT) (envelope-from doug) Date: Fri, 19 Oct 2001 23:58:22 -0500 From: Doug Swarin To: Matthew Dillon Cc: hackers@FreeBSD.ORG Subject: Re: more on Re: Please review: bugfix for vinvalbuf() Message-ID: <20011019235821.A1155@staff.texas.net> References: <20010711003926.B8799@crow.dom2ip.de> <200107110643.f6B6hTB24707@earth.backplane.com> <20010926204333.A15865@staff.texas.net> <200109281747.f8SHlUP29063@earth.backplane.com> <20011019212807.A538@staff.texas.net> <200110200451.f9K4pAU49727@apollo.backplane.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline User-Agent: Mutt/1.2.5i In-Reply-To: <200110200451.f9K4pAU49727@apollo.backplane.com>; from dillon@apollo.backplane.com on Fri, Oct 19, 2001 at 09:51:10PM -0700 Sender: owner-freebsd-hackers@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG On Fri, Oct 19, 2001 at 09:51:10PM -0700, Matthew Dillon wrote: > > : > :Unfortunately, the recent patch to vinvalbuf() hasn't solved all of > :our problems. We had another, different panic today. The process that > :caused it was a 'tail' of a growing logfile over NFS. > : > :I have actually had this problem before, with FreeBSD 3.4, and reported > :it then. I believed this PR to be relevant at the time, however, I do > :not believe this client was writing to the file. > : > : [1998/06/23] kern/7028 http://www.freebsd.org/cgi/query-pr.cgi?pr=7028 > : panic in vinvalbuf when appending/looking at tail of NFS file > : > :The system is running 4.4-RELEASE with the vinvalbuf() patch. Debugging > :information is below. If I can provide any additional information, > :let me know. > : > :Thanks for any help, > :Doug > > How easily can you reproduce this? How often does it occur if you > leave a tail running? > > -Matt I'm not able to reproduce this at will at the moment. The PR I mention has a program which it claims can cause the crash, which I will try running. I'll also try tailing various logfiles, including the one which caused this crash, which is being written to on the machine that is the NFS server. Doug To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message