Date: 02 Aug 2001 18:57:43 +0200 From: sperber@informatik.uni-tuebingen.de (Michael Sperber [Mr. Preprocessor]) To: "Justin T. Gibbs" <gibbs@scsiguy.com> Cc: freebsd-stable@FreeBSD.ORG Subject: Re: Continuing ahc problems - also cause fxp failure Message-ID: <y9lzo9il7qw.fsf@informatik.uni-tuebingen.de> In-Reply-To: <200107312001.f6VK1LI38284@aslan.scsiguy.com> ("Justin T. Gibbs"'s message of "Tue, 31 Jul 2001 14:01:21 -0600") References: <200107312001.f6VK1LI38284@aslan.scsiguy.com>
next in thread | previous in thread | raw e-mail | index | archive | help
>>>>> "Justin" == Justin T Gibbs <gibbs@scsiguy.com> 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
Want to link to this message? Use this URL: <https://mail-archive.FreeBSD.org/cgi/mid.cgi?y9lzo9il7qw.fsf>