Re: [linuxsh-shmedia-dev] Re: Swap Issues (was [linuxsh-shmedia-bk] bk commit ... )

[Steve W. <sc...@wa...>]

On Fri, 27 Jun 2003, Richard Curnow wrote:

> Actually today, to start debugging the Tekram SCSI card support, I've
> got hold of a 2nd Cayman.  The boot gets much further on this wrt the
> SCSI than in the old one.  So perhaps it's just that the older Cayman
> has a defective PCI.

In my experience porting NetBSD, there is a batch of Caymans which have
flaky 3v PCI slots. Any attempt to use bus-mastering PCI cards in them
results in tons of PCI ARB interrupts, and eventual crashes. The 5v slots
work fine (which is interesting, since they're subordinates of the 3v
bus).

Anyway, I put the problem down to some obscure bug or two lurking in my
Cayman PCIbus driver, but when a colleague got a Cayman and tried the 3v
slots, they worked fine.

In the end, I swapped my Cayman for another and have had no PCI problems
of any kind.

Sorry I can't help with the other cache-related issues; I'm not familiar
with the Linux port.

Cheers, Steve

-- 

Wasabi Systems Inc. - The NetBSD Company - http://www.wasabisystems.com/