Re: Debugging hard lockups (hardware?)

[Nick Urbanik <nicku@vtc.edu.hk>]

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
PGP: 53 B6 6D 73 52 EE 1F EE EC F8 21 98 45 1C 23 7B     ID: 7529555D
GPG: 7FFA CDC7 5A77 0558 DC7A 790A 16DF EC5B BB9D 2C24   ID: BB9D2C24