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Re: [linux-lvm] Random file system errors



On 06/07/2009 07:44 AM, Gaute Lund wrote:
Thanks again Clyde, Geoff and f-lvm media mit edu and others who gave advice. Turns out it was a RAM issue.

Just to close off this threadm, even if it's old. This is "only" a private/testing box, and I've been busy, so I've only been able to test stuff every now and then.

A few runs of memtest86 found no errors. I turned to the "md5sums of parts of disks" approach. If I read large chunks (5 GB), from different places on the disks, with 5+ iterations with each chunk, I got errors occasionally (diverging md5sums). But this is 10 disks across two controllers and all but two gave errors several times, albeit seldomly.

I started swapping hardware, and with different RAM I am OK. I guess clean runs of memtest shouldn't be trusted 100%. I can even say, the way these errors have crept up on me gradually over months(!), it means the RAM stick(s) have failed gradually, without being touched or anything. Scary!

<snip>
FWIW, there is a bad version of memtest out there. I don't recall the version number and don't recall the problem, but, for you, its moot.


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