Superblock checksum problems

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Attempting to build a new raid5 md array across 4 hard drives.  At the
exact moment that the drive finishes rebuilding, the superblock checksum
changes to an invalid value.  During the rebuild, mdadm -E for the 4
drives shows:

       Checksum : 70c0863a - correct
       Checksum : 70c0864c - correct
       Checksum : 70c0865e - correct
       Checksum : 70c08670 - correct

The instant it finishes:

       Checksum : 70c0bc47 - expected 70c0bc27
       Checksum : 70c0bc59 - expected 70c0bc39
       Checksum : 70c0bc6b - expected 70c0bc4b
       Checksum : 70c0bc7d - expected 70c0bc5d

Kernel is 2.6.17.11.

Controller is 4-port silicon image:

0000:00:08.0 RAID bus controller: Silicon Image, Inc. SiI 3114
[SATALink/SATARaid] Serial ATA Controller (rev 02)

Drives are seagate 250G sata ST3250824AS

-- 
Josh Litherland (josh@xxxxxxxxxxx)



-- 
VGER BF report: U 0.669701
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