Here's my backport for lucid. I don't have any advice for reproducing the problem; I'd have to look at the code in more detail and try to figure out what triggers that condition.
** Patch added: "0001-md-raid6-avoid-data-corruption-during-recovery-of-do.patch" https://bugs.launchpad.net/ubuntu/+source/mdadm/+bug/1364091/+attachment/4223808/+files/0001-md-raid6-avoid-data-corruption-during-recovery-of-do.patch -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1364091 Title: Possible RAID-6 corruption To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1364091/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs