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SubjectRe: Debugging hard lockups (hardware?)
Dave Jones wrote:

> On Sun, Apr 06, 2003 at 07:34:09PM +0100, Alan Cox wrote:
> > > 02:0a.0 RAID bus controller: CMD Technology Inc PCI0680 (rev 01)
> > > 02:0b.0 RAID bus controller: CMD Technology Inc PCI0680 (rev 01)
> > ...
> > Your choice of components looks fine, its all stuff I trust, even if the
> > ethernet card is not good for performance it ought to be fine in
> > general. If it is a faulty part most likely its a one off fault.
>
> Note the IDE controller, and 2.5 bugzilla #123
> That controller has been nothing but trouble for me.
>
> Dave

Yes, it was the first thing I suspected, so I went out to the fabled Golden
Shopping Centre and bought all the alternative disk controllers I could (except
for 3ware, which I lacked the cash for). I tried HighPoint HPT 370A (Adaptec
1200A), HighPoint HPT368, Promise PDC20270 (FastTrack 100Tx2), and the PDC20276
built onto the motherboard, and a HighPoint HPT302 which didn't work properly at
all. I still got the lockups with various permutations of the non-Silicon Image
chipsets, and found that to my amazement, the Silicon Image 680 chips gave the
best performance. I too had major problems with CMD64x boards on a production
2-CPU system (server for student accounts), so remained with SCSI on that
machine.

Bugzilla for the kernel? I didn't know there is one! I'd better find it.
Thanks Dave.

--
Nick Urbanik RHCE nicku@vtc.edu.hk
Dept. of Information & Communications Technology
Hong Kong Institute of Vocational Education (Tsing Yi)
Tel: (852) 2436 8576, (852) 2436 8713 Fax: (852) 2436 8526
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