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Date: Fri, 27 Mar 2009 10:44:08 +0300
From: Danny Braniss <danny@cs.huji.ac.il>
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Cc: 
Subject: amr driver broken since March 12
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at least for me :-)
[and sorry for the cross posting]

old (March 12 , i know need the svn rev number but...)
dmesg | grep amr
amr0: <LSILogic MegaRAID 1.53> mem 0xfbef0000-0xfbefffff,0xfe580000-0xfe5fffff 
irq 27 at device 0.0 on pci4
amr0: [ITHREAD]
amr0: delete logical drives supported by controller
amr0: <LSILogic Intel(R) RAID Controller SRCU42X> Firmware 414I, BIOS A100, 
128MB RAM
amr0: delete logical drives supported by controller
amrd0: <LSILogic MegaRAID logical drive> on amr0
amrd0: 34857MB (71387136 sectors) RAID 0 (optimal)
amrd1: <LSILogic MegaRAID logical drive> on amr0
amrd1: 280024MB (573489152 sectors) RAID 5 (optimal)

and a resent 7.2 (same host): 

amr0: <LSILogic MegaRAID 1.53> mem 0xfbef0000-0xfbefffff,0xfe580000-0xfe5fffff 
irq 27 at device 0.0 on pci4
amr0: [ITHREAD]
amr0: delete logical drives supported by controller
amr0: <LSILogic Intel(R) RAID Controller SRCU42X> Firmware 414I, BIOS A100, 
128MB RAM
amr0: adapter is busy
amr0: adapter is busy
amr0: delete logical drives supported by controller
(probe0:amr0:0:6:0): TEST UNIT READY. CDB: 0 0 0 0 0 0 
(probe0:amr0:0:6:0): CAM Status: SCSI Status Error
(probe0:amr0:0:6:0): SCSI Status: Check Condition
(probe0:amr0:0:6:0): ILLEGAL REQUEST asc:24,0
(probe0:amr0:0:6:0): Invalid field in CDB
(probe0:amr0:0:6:0): Unretryable error

btw, since I also have similar problems with another kind of raid card (iir),
I suspect some related changes are the cause.

danny