FreeBSD-6 amr and ahd trouble

[Joerg Pulz]

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On Mon, 5 Dec 2005, Scott Long wrote:

> Joerg Pulz wrote:
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>> 
>> On Fri, 2 Dec 2005, Michael Rogato wrote:
>> 
>>> I know I'm a couple weeks late, but I've been having the same problem with 
>>> my 300-8x. It seems that after a seemingly random period of time on my 
>>> dual opteron box, the system just hangs. It did kernel panic once when I 
>>> was taking down the geom array. Originally I thought it might have 
>>> something to do with GEOM, but since it's also happened outside of a GEOM 
>>> array, I'm kind of at a loss.
>>> 
>>> Have you managed to find anything out about what exactly is causing the 
>>> problem? I don't get any kind of error messages, so I haven't had much 
>>> luck in tracking it down.
>> 
>> 
>> With help from Scott Long and John Baldwin, i have my system up and running 
>> again without problems.
>> You should build your own kernel which should have
>> options     MUTEX_NOINLINE
>> in the kernel configuration. With this option my system is working.
>> 
>> regards
>> Joerg
>> 
>
> I think that the root problem is actually memory corruption from the
> amr-cam module.  I haven't been able to nail it down further, though.
> However, this module is entirely optional and isn't used for anything
> in the base system (it's only useful if you hook up a cdrom or tape
> drive to your RAID card), so I've disabled it CVS HEAD and RELENG_6
> until I can fix it for good.

Hi Scott,

i've just "backported" the amr.c changes from HEAD and removed the
options 	MUTEX_NOINLINE
line from my kernel configuration. After rebuilding and installing the new 
kernel, the syste came up without any problems, so your assumption about 
the amr-cam interface seems to be right.

thanks
Joerg

- -- 
The beginning is the most important part of the work.
 				-Plato
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