6.1 Freezes - Suspect SCSI Issue

[Juergen Heberling]

Andrea Venturoli wrote:
> Jeff Royle wrote:
> 
>>> I've had freezes as you describe on two different servers with ahd 
>>> and SMP. The solution was to turn SMP off, unfortunately :(

I don't think I'm ready to turn SMP off just yet.
>>
>> Are these Xeon's?  If so you might want to try disabling Hyper-threading

.. but I'll try disabling Hyper-threating.
And yes they are Xeon's, the Nocona version.

> 
> No. In my case one is an Athlon64 and the other an Opteron.
> 
> 
> 
>> FYI - I have used that particular controller successfully on several 
>> servers recently so I don't think that should be a overall issue for you.
Thank you for your vote of confidence on this. I really think this is a 
drive issue or a drive/drive compatibility issue due to the weird 
results I'm getting on "camcontrol tags" command.   BTW camcontrol 
defects shows 0 defects.
> 
> In my case the controller is slightly different (29320), but I think the 
> driver is the problem.
I'm running a 29160 on a 4.9FB (dual Xeon) machine and it has been rock 
solid for 1.5years.
> It used to work flawlessly as long as I run 5.x, but started freezing as 
> soon as I upgraded to 6.1.
> Notice, however, that I don't have data to support my thesis yet.
> 
> 
>  bye
>     av.
> 
> 
Thanks again
Juergen