PLEASE TEST: IPI deadlock avoidance patch

[Lukas Ertl]

On Tue, 24 Aug 2004, Robert Watson wrote:

>
> On Tue, 24 Aug 2004, Lukas Ertl wrote:
>>
>> OK, it seems I shouted out too early.  '-jX' buildworlds go fine, but my
>> news server (heavy disk and network traffic) still locks up within one
>> day of uptime.  It's a Dual Xeon with HTT, SCHED_4BSD, ADAPTIVE_GIANT,
>> and no WITNESS or INVARIANTS.
>
> Using a serial break, are you able to get into the debugger on hang?  If
> not, have you tried SW_WATCHDOG or MP_WATCHDOG?

Nope, NMI doesn't work.  But I'll add MP_WATCHDOG and let the box run for 
a while.

cheers,
le

-- 
Lukas Ertl                         http://homepage.univie.ac.at/l.ertl/
le at FreeBSD.org                     http://people.freebsd.org/~le/