I just had the following weird effect under OpenSUSE 12.3, kernel 3.7.10-1.16. I am wondering if it's a known problem. Creating a RAID5 array (format doesn't seem to matter) either with the openSUSE native mdadm 3.2.6 or mdadm 3.3, and running mke2fs on it, fails. The RAID array is broken after that, all disks faulty, any IO fails. Further examination shows that the problem is related to mke2fs trying to discard blocks. Running "-E nodiscard" or setting "discard=no" in mke2fs.conf fixes the problem. Unfortnately, "discard" seems to be the default. Details under https://bugzilla.novell.com/show_bug.cgi?id=840413 Has anyone seen this before? Martin -- 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
