On Thu, May 20, 2010 at 10:08:21AM +0000, Buehl, Reiner wrote: > Hi, > > I keep getting ext3 filesystem corruptions on one of my md RAID1 arrays. Shortly after booting, I get messages like the following one: > > EXT3-fs error (device md1): htree_dirblock_to_tree: bad entry in > directory #17269110: rec_len is smaller than minimal - offset=0, > inode=0, rec_len=0, name_len=0 This looks like a block got completely zero'ed out. One interesting question is whether the corruption is happening on the read side (when transfering data from the disk to memory) or on the write side (when tranferring data from memory to disk). So something that's worth doing is grab the output of e2fsck, and see if it see if is trying to fix the directory inode reported by the EXT3-fs error syslog. Another thing that's worth doing is to try running e2fsck -fy /dev/md1 a second time. If you see errors in that second fsck run, then it's time to suspect that either (a) the storage stack isn't reliably reading from disk, or (b) the storage stack isn't reliably writing to the disk. Thers is the possibility of an e2fsck bug, but that seems unlikely in this context. If you save the outputs from each e2fsck run, I can look at them and tell you whether it's likely an e2fsck bug or, what seems more likely a storage stack failure. Regards, - Ted -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
