From owner-freebsd-stable Thu Aug 2 9:58: 2 2001 Delivered-To: freebsd-stable@freebsd.org Received: from mx2.informatik.uni-tuebingen.de (mx2.Informatik.Uni-Tuebingen.De [134.2.12.9]) by hub.freebsd.org (Postfix) with ESMTP id 52B4037B403 for ; Thu, 2 Aug 2001 09:57:48 -0700 (PDT) (envelope-from sperber@informatik.uni-tuebingen.de) Received: from sams.informatik.uni-tuebingen.de (sams [134.2.12.50]) by mx2.informatik.uni-tuebingen.de (Postfix) with ESMTP id 7D7FC1062; Thu, 2 Aug 2001 18:57:45 +0200 (MST) Received: (from sperber@localhost) by sams.informatik.uni-tuebingen.de (8.11.3/8.11.3) id f72Gvho39507; Thu, 2 Aug 2001 18:57:43 +0200 (CEST) (envelope-from sperber) To: "Justin T. Gibbs" Cc: freebsd-stable@FreeBSD.ORG Subject: Re: Continuing ahc problems - also cause fxp failure References: <200107312001.f6VK1LI38284@aslan.scsiguy.com> From: sperber@informatik.uni-tuebingen.de (Michael Sperber [Mr. Preprocessor]) Date: 02 Aug 2001 18:57:43 +0200 In-Reply-To: <200107312001.f6VK1LI38284@aslan.scsiguy.com> ("Justin T. Gibbs"'s message of "Tue, 31 Jul 2001 14:01:21 -0600") Message-ID: Lines: 30 User-Agent: Gnus/5.090003 (Oort Gnus v0.03) XEmacs/21.5 (anise) MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-1 Content-Transfer-Encoding: 8bit Sender: owner-freebsd-stable@FreeBSD.ORG Precedence: bulk List-ID: List-Archive: (Web Archive) List-Help: (List Instructions) List-Subscribe: List-Unsubscribe: X-Loop: FreeBSD.ORG >>>>> "Justin" == Justin T Gibbs writes: >> I see an identical problem with and without this diff applied on an >> ASUS motherboard with onboard SCSI. No onboard Ethernet. Justin> Your problem is actually quite different. In your case, the timeout Justin> occurs in a data-out phase and the chips status tells us: Justin> 1) The target still has us in data phase. Justin> 2) SCSI dma is still enabled. Justin> 3) Our data fifo is full of data to send on the SCSI bus, Justin> but its not going anywhere. Justin> So, the aic7890 believes that the target has stopped requesting Justin> more data, but we still haven't changed phase. This is the classic Justin> symptom of a flaky bus where the signals for clocking data are Justin> degraded. The target probably didn't see one or more of the controller's Justin> ACKs, so we are stuck. Double check your termination, cabling, power Justin> supply, etc, etc. Thanks for the comments. I just checked once again, and everything seems to be in order. I decided to ax the active terminator and run in S/E mode which has been working fine for >24h. Crossing my fingers ... -- Cheers =8-} Mike Friede, Völkerverständigung und überhaupt blabla To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-stable" in the body of the message