From owner-freebsd-stable Thu Feb 11 08:16:49 1999 Return-Path: Received: (from majordom@localhost) by hub.freebsd.org (8.8.8/8.8.8) id IAA07744 for freebsd-stable-outgoing; Thu, 11 Feb 1999 08:16:49 -0800 (PST) (envelope-from owner-freebsd-stable@FreeBSD.ORG) Received: from obie.softweyr.com ([204.68.178.33]) by hub.freebsd.org (8.8.8/8.8.8) with ESMTP id IAA07714 for ; Thu, 11 Feb 1999 08:16:40 -0800 (PST) (envelope-from wes@softweyr.com) Received: from softweyr.com (zaphod.softweyr.com [204.68.178.35]) by obie.softweyr.com (8.8.8/8.8.8) with ESMTP id JAA28043; Thu, 11 Feb 1999 09:16:08 -0700 (MST) (envelope-from wes@softweyr.com) Message-ID: <36C30247.966AC721@softweyr.com> Date: Thu, 11 Feb 1999 09:16:07 -0700 From: Wes Peters Organization: Softweyr llc X-Mailer: Mozilla 4.5 [en] (X11; U; FreeBSD 3.0-RELEASE i386) X-Accept-Language: en MIME-Version: 1.0 To: Bjoern Fischer CC: Matthew Dillon , freebsd-stable@FreeBSD.ORG Subject: Re: NFS + cdda2wav References: <19990209233951.A402@broccoli.no-support.loc> <199902100355.TAA77997@apollo.backplane.com> <19990211031636.A2690@broccoli.no-support.loc> Content-Type: text/plain; charset=us-ascii Content-Transfer-Encoding: 7bit Sender: owner-freebsd-stable@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.ORG Bjoern Fischer wrote: > > On Tue, Feb 09, 1999 at 07:55:20PM -0800, Matthew Dillon wrote: > [...] > > Bjoern, ktrace the program run. I suspect the problem is not > > NFS but that the write() latency is causing one of cdda2wav's > > forked processes to exit and kill its child before the child > > finishes writing. > > > > ktrace -t cn -i cdda2wav .... > > > > kdump -R | less > > > > Try to match up reads from the CD to writes to the output file. > > See if the final couple of read/write's match up. > > Hmm, the procedure of testing changes the object being tested. > The problem disappears while ktracing the run. A "Heisenbug." But don't tell Terry, you'll get a fizzix lecture. ;^) -- "Where am I, and what am I doing in this handbasket?" Wes Peters Softweyr LLC http://www.softweyr.com/~softweyr wes@softweyr.com To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message