md5sum of large files gives different results sometimes

Posted by Emanuele on Server Fault See other posts from Server Fault or by Emanuele
Published on 2011-11-14T23:37:32Z Indexed on 2011/11/15 1:57 UTC
Read the original article Hit count: 257

Filed under:

Corruption

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md5

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ecc

I have an AMD quad core, 8 gb RAM, 1 SSD EXT2 (2 months old), 2 HDD EXT4, approximately 1 year old. I'm using Ubuntu 10.04 x86-64 and when I compute the md5sum of large files (9 GB) sometimes I get different values than the one stored on a reference file.

Upon restarting and switching off the PC then I get the expected results no matter how many times I repeat it. But this is random.

I've turn on ECC (the fastest possible settings) and the issue seems to be rarer, but I've run memtest86+ for 6+ hours without a glitch (and with ECC off!).

Any idea? Should I update the BIOS of my motherboard (Asus EVO-something...don't remember it now)? I've tried all the rest apart this, but genuinely don't know what to do anymore...

Any suggestion is appreciated!

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