Date: Wed, 28 Mar 2007 07:30:46 GMT From: Alex Wang<alex@alexwang.com> To: freebsd-gnats-submit@FreeBSD.org Subject: kern/110962: Intel MatrixRAI (ICH8) RAID 5 rebuild progress is always 0% Message-ID: <200703280730.l2S7UkZC034069@www.freebsd.org> Resent-Message-ID: <200703280740.l2S7e2eS069741@freefall.freebsd.org>
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>Number: 110962 >Category: kern >Synopsis: Intel MatrixRAI (ICH8) RAID 5 rebuild progress is always 0% >Confidential: no >Severity: critical >Priority: high >Responsible: freebsd-bugs >State: open >Quarter: >Keywords: >Date-Required: >Class: sw-bug >Submitter-Id: current-users >Arrival-Date: Wed Mar 28 07:40:02 GMT 2007 >Closed-Date: >Last-Modified: >Originator: Alex Wang >Release: 6.2 >Organization: Synology >Environment: FreeBSD 6.2, i386 CPU: Intel Core2 Duo RAM: 2GB Motherboard: ASUS P5B-E 1 x Seagate 80GB disk 4 x WD 160 GB (WD1600AAJS) >Description: 2 problems here: 1. Rebuild ICH8 RAID 5, the progress is always 0% and the partition can't be use any more. 2. A degrade RAID 5 can't boot. System hangs at boot time. CPU: Intel Core2 Duo RAM: 2GB Motherboard: ASUS P5B-E 1 x Seagate 80GB disk 4 x WD 160 GB (WD1600AAJS) ASUS P5B-E has intel matrix raid support. I am using 4 WD disks to build RAID 5. It works well on FreeBSD 6.2. The kernel can detect 4 disks and have a ar0 RAID 5 device. "atacontrol status ar0" works well, I can see RAID is READY or DEGRADE when I unplug a disk. But when I attache a new disk, add it as spare disk, then use atacontrol to rebuild to RAID, the progress is always 0%. And, the partition can't be access any more. If i try to access the partition, system hangs. Any other problem is, if I shutdown the PC and unplug 1 disk from the 4 disks RAID 5, turn on power, the system can't boot. It hangs in detect ata raid. >How-To-Repeat: 1. Use Intel ICH8 chip and create RAID 5 2. Unplug 1 disk 3. attache disk, add to spare disk, and rebuild 4. progress is always 0% 5. unplug the new disk 6, reboot 7, system hangs when detecting ata raid >Fix: >Release-Note: >Audit-Trail: >Unformatted:
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