Re: AIC7902 lockups on Intel SMP (Re: HD somtimes hanging)

Thomas Beutin
2003-07-24T19:30:01Z

On Thu, Jul 24, 2003 at 11:47:04AM -0600, Justin T. Gibbs wrote:
> It looks like you have a very flakey bus. The BSY line is probably
> glitching. In the trace you provided, we successfully selected the
> device at ID 3 and are waiting for the target to take us to the first
> phase. The REQ for that phase never occurs and in fact the BSY line
> is not always driven. Very, very weird. The target controls both
> the REQ and BSY lines, so this is either a problem with the target,
> your cabling, or your termination.

I will give my system a try next time when i have access to the
machine.
Although i cannot believe that: all disks are mounted in a plug-in
for the backplane (SCA HSBP M15), and the first disk works fine
all the times.
Maybe i change the drives in the plug-ins and the position of the
drives (but i cannot use all positions because i have to place the
IBM disk at the first position).

-tb
--
Thomas Beutin tb@laokoon.IN-Berlin.DE
Beam me up, Scotty. There is no intelligent live down in Redmond.