Date: Mon, 2 Mar 1998 00:45:10 -0500 (EST) From: "John S. Dyson" <toor@dyson.iquest.net> To: rivers@dignus.com (Thomas David Rivers) Cc: dyson@FreeBSD.ORG, hackers@FreeBSD.ORG, hasty@rah.star-gate.com, rivers@dignus.com, tlambert@primenet.com Subject: Re: The 'dave rivers' memorial panic. Message-ID: <199803020545.AAA04573@dyson.iquest.net> In-Reply-To: <199803020339.WAA03710@lakes.dignus.com> from Thomas David Rivers at "Mar 1, 98 10:39:27 pm"
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Thomas David Rivers said: > > John Dyson said: > > > > Terry Lambert said: > > > > > > We thought it was a bug in fsck and in the CG code. > > > > > > It turned out to be a longer-than-functional IDE cable. > > > > > > Try using a shorter IDE cable. > > > > > Slightly off subject: > > > > Even though Ultra-DMA/33 doesn't have higher clockrates than > > 16MHz EIDE (Mode 4), it seems that the Promise controller and > > WD drives DO NOT like out-of-spec IDE cables when running > > Ultra-DMA/33. (Ultra-DMA uses both edges of the clock, so > > there can be more transitions than EIDE, and the spectrum > > will be higher in freq, also with more sensitivity to clock > > skew, due to timing constraints.) > > > > Umm... I don't know anything about this - but just a reminder; > my "memorial" panic occurs with SCSI devices.... (but, I do have > a reproduction on IDE as well.) Julian had mentioned he'd seen > reproductions on different devices - but I didn't see the particulars. > > Or, are you guys discussing something else? > Yes (re: my slightly off subject note!!!) -- John | Never try to teach a pig to sing, dyson@freebsd.org | it just makes you look stupid, jdyson@nc.com | and it irritates the pig. To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-hackers" in the body of the message
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