Date: Mon, 13 Nov 2006 09:20:48 -0600 From: "Jaime Bozza" <jbozza@qlinksmedia.com> To: <freebsd-stable@freebsd.org> Subject: RE: 6-STABLE oddity Message-ID: <E5797C35DEFA014A96C2171380F0EEE40157AC41@bacchus.ThinkBurstMedia.local> In-Reply-To: <032501c705c5$6cefa790$9603a8c0@claylaptop>
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> Download, burn to CD and run http://www.memtest86.com/ >=20 > Usually problems of this sort are faulty ram. > I had a buddy getting odd errors on copying files that happenned at > random. > Turned out to be bad ram too. I recently had this same problem with a recent 6-STABLE and thought the same thing. Ran memtest for over 48 hours and never came up with any errors. I would cvsup source and run an md5 check to compare with another "known good" system and seemed to always have 1-2 files bad. It seemed to always be just 1 bit off. Tried swapping cables, cards (SCSI), etc. The system was running gmirror on two 18G SCSI drives using an Adaptec controller. If I disabled the 2nd drive, I didn't have a single problem after a ton of testing. Turned out that I hadn't formatted the 2nd drive using the Adaptec tools. The drives had been out of service for about 3 years. Once I went through a format/verify I wasn't able to duplicate the problem no matter what I tried. So, RAM is definitely the easiest thing to test but keep in mind that there are other areas that may also cause an issue. Jaime Bozza
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