On Aug 06, 2009 16:37 -0400, Nick Dokos wrote: > I did that to begin with but the problem turns out to be much more > mundane: there was an IO error on one of the volumes. It wasn't quite > obvious (no red lights going off) but there *was* a message in > /var/log/messages - unfortunately I missed it. I eventually recreated > the error by trying to read the file with ``od -c'' and then went back > and found the original error. I don't know why/how ll_ver_fs managed to > read the offset and come up with a 1M difference[1] -- ``od -c'' failed with > a big thud. Can you have a look at the error handling in ll_ver_fs at that point? It seems that it might just have re-used the previous 1MB buffer, but didn't detect/report the error from the read, which would itself be bad. Cheers, Andreas -- Andreas Dilger Sr. Staff Engineer, Lustre Group Sun Microsystems of Canada, Inc. -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
