Re: Promise PDC20269 (Ultra133 TX2) + Software RAID

[Andreas Steinmetz <ast _at_ xxxxxxxx>]

Pedro Larroy wrote:
> On Tue, Feb 03, 2004 at 02:08:31PM +1030, Ryan Verner wrote:
> 
> 
>>And the machine is randomly locking up, and of course, on reboot, the 
>>raid array is rebuilt.  Ouch.  Any clues as to why?  I'm sure the hard 
>>drive hasn't failed as it's brand new; I suspect a chipset 
>>compatibility problem or something.
>>
>>R
>>
> 
> 
> I have similar issues with 20269. I have two cards on one box doing sw raid5
> on 6 ide drives. It only runs stably with 2.4.19
> It has been many months since I assembled that box, and I've tried kernels
> from 2.4.20-ac, 2.5.x, 2.6.2  and all hang after some time running.
> 
> I remember that pdcs also hanged a dual processor box.
> 

In my case (see my mail to lkml today) I do suspect concurrent disk 
access and IO-APIC to be the culprit. If you're using an IO-APIC try 
booting with either "noapic" or "hdx=serialize" where hdx is one of the 
disks of your controller card.
-- 
Andreas Steinmetz

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