From owner-freebsd-hackers Tue Aug 12 18:41:12 1997 Return-Path: Received: (from root@localhost) by hub.freebsd.org (8.8.5/8.8.5) id SAA07783 for hackers-outgoing; Tue, 12 Aug 1997 18:41:12 -0700 (PDT) Received: from genesis.atrad.adelaide.edu.au (genesis.atrad.adelaide.edu.au [129.127.96.120]) by hub.freebsd.org (8.8.5/8.8.5) with ESMTP id SAA07773; Tue, 12 Aug 1997 18:40:56 -0700 (PDT) Received: (from msmith@localhost) by genesis.atrad.adelaide.edu.au (8.8.5/8.7.3) id LAA11047; Wed, 13 Aug 1997 11:10:48 +0930 (CST) From: Michael Smith Message-Id: <199708130140.LAA11047@genesis.atrad.adelaide.edu.au> Subject: Re: 2.2.2+ crash.. more info In-Reply-To: <199708130110.SAA21060@freefall.freebsd.org> from Julian Elischer at "Aug 12, 97 06:10:50 pm" To: julian@FreeBSD.ORG (Julian Elischer) Date: Wed, 13 Aug 1997 11:10:47 +0930 (CST) Cc: hackers@FreeBSD.ORG X-Mailer: ELM [version 2.4ME+ PL28 (25)] MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Sender: owner-freebsd-hackers@FreeBSD.ORG X-Loop: FreeBSD.org Precedence: bulk Julian Elischer stands accused of saying: > > We have several hundred Bsd machines here.. we see this one enough for > me to recognise it.. > > the plot thickens.. > I have discovered the following: > 1/ the code that crashes: > scanning the queues in swithc: This looks a lot like the sort of crazy stuff I was seeing when I was doing Verboten things inside a 'fast' ISA interrupt handler. Do you have RI_FAST set for any of your drivers, particularly ones that you've written yourself? You could try ripping RI_FAST out ouf _all_ of the handlers you're using to start with and see if this cures things. > code examinations will follow with more info.. > if this strikes anyone as familiar, do chime in! Frighteningly. It took us the best part of a year just to get a stack trace that actually hinted at the problem. > julian -- ]] Mike Smith, Software Engineer msmith@gsoft.com.au [[ ]] Genesis Software genesis@gsoft.com.au [[ ]] High-speed data acquisition and (GSM mobile) 0411-222-496 [[ ]] realtime instrument control. (ph) +61-8-8267-3493 [[ ]] Unix hardware collector. "Where are your PEZ?" The Tick [[