Hello, (I've posted some messages about this to linux-raid, but haven't gotten much of a response; this time I'm cc'ing to linux-kernel) I am seeing reproducible corruption with software RAID-6 on an array that has been created with missing disks. The attached script demonstrates this easily through loopback devices, but I see the problem just the same on real drives. I do not see the problem with full RAID-6 arrays (no missing disks), nor do I see it on RAID-5 arrays on the same system. I haven't seen the corruption when writing directly to the md device, but I haven't tested that very much. Tested on 2.6.6, 2.6.7, 2.6.8-rc2, with mdadm 1.5.0 and 1.6.0. See attached. -jim
Attachment:
r6test.sh
Description: Bourne shell script
