Re: QLogic PTI firmware

[Mark Morgan Lloyd <markMLl.debian-sparc@telemetry.co.uk>]

crn@netunix.com wrote:
> On Mon, 21 Jan 2013, Mark Morgan Lloyd wrote:
>
> > > I've got a (non-critical) E4500 here with a D1000 JBOD, I appear to 
> > > be able to crash 3.2.35 if the controller's stressed by e.g. 12x jobs 
> > > each running dd to wipe a disc.
> >
> > I've definitely got a reproducible failure here, if I have more than 
> > (I think) 5x jobs running simultaneously. I don't think I can raise a 
> > bug against this one unless somebody can point me at an appropriate 
> > firmware binary to test.
>
> Hmmm - Its a long time ago but I have seen this before.
> Check that both halfs of the D1000 have Differential terminators - the
> correct items are clearly marked with the word "Differential" and that
> the terminators do not have any broken  bent or missing pins.

Happy New Year etc. Chris :-)

What's acceptable cabling practice on this: it's been set up hung off a 
single controller with the two halves daisy-chained. Cables are Sun or 
(decent) IBM and it's a Sun differential terminator, I see no failures 
if the job count is <=4 (but I continue testing this- it's useful extra 
heat).

I think it's worth noting explicitly that there's 12x CPUs in this 
system. I note (but don't see as directly relevant) that the controller 
won't load the firmware during startup, has to be done by a manual 
rmmod/modprobe.

--
Mark Morgan Lloyd
markMLl .AT. telemetry.co .DOT. uk

[Opinions above are the author's, not those of his employers or colleagues]