On Wednesday December 7, raziebe@xxxxxxxxx wrote: > Neil, > could u elaborate on kernel/mdadm version this bug was fixed ? > i having the same problem myslef. It was fixed in 2.6.12-rc5 The mddev->queue->unplug function was being set to early in 'run', and if run failed, it would still be set, so attempted to access the device for IO could cause a crash. 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