Messages in this thread | | | Date | Tue, 26 Jun 2007 09:58:17 +0200 (CEST) | From | Nikola Ciprich <> | Subject | arcmsr + dmcrypt problem |
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Hello everybody, I've stumbled upon a problem with arcmsr driver: trying to use a dmcrypt encrypted volume on top of areca volume always hangs the card.
Steps to reproduce:
1) create some kind of raid on areca (raid5, or even a passthrough disc) 2) cryptsetup luksFormat /dev/sda1 (or whatever areca sdX device is) 3) cryptsetup luksOpen /dev/sda1 cryptotest 4) mkfs.xfs /dev/mapper/cryptotest 5) mount /dev/mapper/cryptotest /mnt/cryptotest 6) copy some data to /mnt/cryptotest
this hangs card and printk's following messages: [ 288.160614] arcmsr0: isr get an illegal ccb command done acb='0xffff810144758548'ccb='0xffff810020020000' ccbacb='0x50a05ed7588a40c0' startdone = 0xbcda ccboutstandingcount=1 --
I have tested it on: 1) SMP amd64 machine running 2.6.18 x86_64 kernel with external arcmsr module or 2.6.21.3 - it it always hangs on step 4 2) SMP xeon machine running 2.6.21 and also 2.6.22-rc6, UP or SMP, with acpi on or off, also tried disabling NCQ - always hangs on step 6
Card information: Firmware Version : V1.43 2007-4-17 BOOT ROM Version : V1.43 2007-4-17 Controller Name : ARC-1220
Apparently I'm not the first person to encounter this problem: http://forums.storagereview.net/index.php?showtopic=25513
Should somebody be willing to hunt down this bug, I'd be more than happy to assist.
best regards
nik.
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