On Wednesday October 17, snitzer@xxxxxxxxx wrote: > mdadm 2.4.1 through 2.5.6 works. mdadm-2.6's "Improve allocation and > use of space for bitmaps in version1 metadata" > (199171a297a87d7696b6b8c07ee520363f4603c1) would seem like the > offending change. Using 1.2 metdata works. > > I get the following using the tip of the mdadm git repo or any other > version of mdadm 2.6.x: > > # mdadm --create /dev/md2 --run -l 1 --metadata=1.0 --bitmap=internal > -n 2 /dev/sdf --write-mostly /dev/nbd2 > mdadm: /dev/sdf appears to be part of a raid array: > level=raid1 devices=2 ctime=Wed Oct 17 10:17:31 2007 > mdadm: /dev/nbd2 appears to be part of a raid array: > level=raid1 devices=2 ctime=Wed Oct 17 10:17:31 2007 > mdadm: RUN_ARRAY failed: Input/output error > mdadm: stopped /dev/md2 > > kernel log shows: > md2: bitmap initialized from disk: read 22/22 pages, set 715290 bits, status: 0 > created bitmap (350 pages) for device md2 > md2: failed to create bitmap (-5) Could you please tell me the exact size of your device? Then should be able to reproduce it and test a fix. (It works for a 734003201K device). Thanks, NeilBrown - To unsubscribe from this list: send the line "unsubscribe linux-raid" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html