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Date: Wed, 10 Jun 2009 08:51:04 -0600
From: Scott Long <scottl@samsco.org>
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To: Andre Oppermann <andre@freebsd.org>
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Cc: freebsd-stable@freebsd.org
Subject: Re: (probe23:arcmsr0:0:16:0): inquiry data fails comparison at DV1
 step
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Andre Oppermann wrote:
> Today I upgraded an AMD64 server from FreeBSD 6.4 to 7-STABLE and got a big
> nasty surprise with the Areca RAID controller:
> 
> arcmsr0: <Areca SATA Host Adapter RAID Controller (RAID6 capable)
>  > mem 0xfdbff000-0xfdb400000 irq16 at device 14.0 on pci18
> ARECA RAID ADAPTER0: Driver Version 1.20.00.15 2007-10-07
> ARECA RAID ADAPTER0: FIRMWARE VERSION V1.46 2009-01-06
> arcmsr0: [ITHREAD]
> ...
> (probe23:arcmsr0:0:16:0): inquiry data fails comparison at DV1 step
> run_interrupt_driven_hooks: still waiting after 60 seconds for xpt_config
> 
>  From here on it hangs and repeats the last message with some sort of
> exponential backoff. Ctrl-Alt-Del to reboot doesn't work but ScrollLock
> does. Hard reset is required to reboot.
> 
> Booting the old 6.4 kernel works and the system comes up again with full
> access to the RAID array.
> 
> Any help appreciated.
> 

I'll try to reproduce this locally.  There have been sporadic reports of
the "fails comparison" problem, but none as fatal as this.  Is it 
possible to compile your kernel with CAMDEBUG and
CAM_DEBUG_FLAGS=CAM_DEBUG_INFO?

Scott