From owner-freebsd-scsi Mon Jul 19 21:59:40 1999 Delivered-To: freebsd-scsi@freebsd.org Received: from dingo.cdrom.com (dingo.cdrom.com [204.216.28.145]) by hub.freebsd.org (Postfix) with ESMTP id 4977B1516E for ; Mon, 19 Jul 1999 21:59:38 -0700 (PDT) (envelope-from mike@dingo.cdrom.com) Received: from dingo.cdrom.com (localhost.cdrom.com [127.0.0.1]) by dingo.cdrom.com (8.9.3/8.8.8) with ESMTP id VAA03826; Mon, 19 Jul 1999 21:54:09 -0700 (PDT) (envelope-from mike@dingo.cdrom.com) Message-Id: <199907200454.VAA03826@dingo.cdrom.com> X-Mailer: exmh version 2.0.2 2/24/98 To: Chris Caputo Cc: freebsd-scsi@freebsd.org Subject: Re: hard lockups with 3.2-STABLE and ASUS P2B-LS onboard AIC-7890 In-reply-to: Your message of "Mon, 19 Jul 1999 21:55:00 PDT." Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Date: Mon, 19 Jul 1999 21:54:09 -0700 From: Mike Smith Sender: owner-freebsd-scsi@FreeBSD.ORG Precedence: bulk X-Loop: FreeBSD.org > I am seeing crashes consisting of hard lockups when pushing lots of disk > i/o (doing a "dump" of /usr for example) on a 3.2-STABLE system using the > ASUS P2B-LS on board SCSI (AIC-7890). When the crash happens, the SCSI > activity light on the motherboard and the active drive stay lit. > ctrl-alt-del gets no response. > > What is the recommended way for debugging this? Buy a PCI bus analyser, or a new motherboard. Typically the symptoms you're describing are the result of hard PCI bus lockups of one kind or another. You might try some unscientific tweaking of the PCI bus parameters (latency, as well as positioning of cards) to see if you can make it go away. -- \\ The mind's the standard \\ Mike Smith \\ of the man. \\ msmith@freebsd.org \\ -- Joseph Merrick \\ msmith@cdrom.com To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-scsi" in the body of the message