Subject: Re: MP interrupt problems with PRIMERGY RX300 --- Success
To: Peter O'Kane <peter.okane@it.nuigalway.ie>
From: Eric Haszlakiewicz <erh@nimenees.com>
List: tech-smp
Date: 12/20/2004 09:35:43
On Fri, Dec 17, 2004 at 05:01:30PM +0000, Peter O'Kane wrote:
> O.K. I have got my RX300 running with all four logical processors.
> Problem appears to be that, at the point where the ioapics are enabled, the 
> local apic on the second physical processor is not properly initialized to 
> take part in the negotiations needed for lowest priority delivery mode and 
> that, even though only the BSP is specified as the interrupt target the 
> LOPRI delivery mode is being specified.
> 
> As a quick and dirty hack I just changed the definition of 
> IOAPIC_REDLO_DEL_LOPRI to 0 (i.e. the same as IOAPIC_REDLO_DEL_FIXED) in 
> sys/arch/x86/include/i82093.h

	well, looks like I spoke too soon.  This work around manages to
get my machine to boot, but once it starts doing anything it panics
with "TLB IPI rendezvous failed".  Guess I probably need to fix the
actual underlying problem.

eric