Date: Mon, 6 Mar 2000 23:01:27 +0100 From: Dave Boers <djb@relativity.student.utwente.nl> To: Marius Strom <marius@alpha1.net> Cc: Dan Papasian <bugg@bugg.strangled.net>, Arun Sharma <adsharma@sharmas.dhs.org>, freebsd-current@FreeBSD.ORG Subject: Re: current lockups Message-ID: <20000306230127.A27622@relativity.student.utwente.nl> In-Reply-To: <Pine.BSF.4.20.0003061539350.36898-100000@beaker.alpha1.net>; from marius@alpha1.net on Mon, Mar 06, 2000 at 03:46:25PM -0600 References: <20000306223811.A27499@relativity.student.utwente.nl> <Pine.BSF.4.20.0003061539350.36898-100000@beaker.alpha1.net>
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It is rumoured that Marius Strom had the courage to say: > Well, there was a discussion a few weeks back with Soren Schmidt and a few > others. I believe the conclusion was made that this occurred with most WD > drives (interesting about the WD == IBM part, I did notice he mentioned > that in -current a few weeks ago as well). I had a WD20 gig that would > just hang, and a number of other people had similar problems. (Theirs > would log "Lost Disk Contact" in the dmesg as their root dev wasn't a > UDMA66 drive) Interesting. I'll check my own archives of -current to see if I can find the discussion. I always thought that the "Lost Disk Contact" messages were due to the disk recalibrating itself after six days of continued use. After Soren increased the timeout from 5 to 10 seconds, I never saw the problem again, IIRC. For the record, (see my mail elsewhere in the thread) I have recently added an U2W SCSI harddisk to the system (because I found that the UDMA effectively cuts off memory access for the two celeron's for long times and because the celeron's haven't got nearly enough cache they are effectively waiting for the IDE disk all the time) and I'm now running my root filesystem on that drive (as well as most of my other important filesystems). So I guess that if your assertion is right then my problem should have gone away now. I haven't seen any "Lost Disk Contact" messages recently, however, though the UDMA66 drive is still connected. BTW, are there any people out there that have similar hangs and are NOT using UDMA66 or the ATA driver ? > Unfortunately, the discussions occurred while the mailing list archive was > kaput (WD Drive on UDMA66? =]) so it's not archived where I can find it. :-) Regards, Dave Boers. -- Dave Boers < djb @ relativity . student . utwente . nl > Don't let your schooling interfere with your education. (Mark Twain) To Unsubscribe: send mail to majordomo@FreeBSD.org with "unsubscribe freebsd-current" in the body of the message
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