Re: A stuck system

On Wednesday 20 December 2006 11:12, Randall Stewart wrote:
> Interesting.. I have actually been having
> this problem for a while... can't remember
> when I last updated.. its related to pounding
> the network.. at least mine seems to  be... (I
> am pounding the loopback).. and it appears
> that everything just "freezes".
> 
> Is your machine a Gig-a-Byte motherboard?

Do you have a dual-port msk0 device?

> R
> 
> Andre Guibert de Bruet wrote:
> > 
> > 
> > On Dec 20, 2006, at 8:49 AM, Randall Stewart wrote:
> > 
> >> Ok, I was wrong on this... I recreated it.. hooked up
> >> my em0 card to my laptop (right now its isolated
> >> running the mpi tests and uses the loopback only).
> >>
> >> I do a ping
> >>
> >> And ta-da  the system comes back to life after
> >> being hung for 15 minutes.
> >>
> >> This time I did not see any of the usual syslog messages
> >> either... of course it was only "stuck" for 15 minutes or
> >> so...
> >>
> >> I will leave the thing running and get it stuck again and
> >> validate that the msk and usb will also cause the machine
> >> to come back to life..
> >>
> >> Is there any way this could be a lost interupt type problem (remember
> >> the scheduler is appearing to "stop" scheduling things). OR
> >> is this a problem with my hardware... somehow failing to
> >> deliver interupts maybe???
> > 
> > 
> > I am seeing something similar on my dual Xeon system. It appears that  a 
> > kernel from December 13th did not exhibit this behavior whereas one  
> > from the 16th does. I am able to "revive" the machine by pushing traf  
> > on the msk0 interface.
> > 
> > Kernel config: http://bling.properkernel.com/freebsd/BLING
> > 
> > Andy
> > 
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> > 
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> 
> 

-- 
John Baldwin