[vortex] Re: New driver - 0.99Q

[Donald Becker]

On Sat, 20 May 2000, Andrew Morton wrote:
> Donald Becker wrote:
> > 
> > Our clusters typically use SMP machines, and we keep getting burned by APIC
> > configuration bugs appearing as driver bugs.
> > 
> 
> I'm in contact with a couple of 2.3 people who are repeatably seeing the
> 'interrupt posted but not delivered' problem after some hours
> operation.  I assume that this is due to the APIC setup goind bad on
> them.

It is not clear, but evidence does point that way.

The other bug is the obvious machine-specific APIC problem of a bad
configuration guess.  There you never get any interrupt, and it's useful to
be able to telnet in and do  echo "append noapic" >> /etc/lilo.conf.

> I tried to get some help diagnosing this problem on linux-smp, but I
> think they're all asleep.

When I complained about the simultaneous interrupt handler entry in early
2.2 I got absolutely no response...

Donald Becker				becker@scyld.com
Scyld Computing Corporation
410 Severn Ave. Suite 210
Annapolis MD 21403