Re: 8.0RC2 amd64 - kernel panic running make buildworld

Andriy Gapon wrote:
> on 12/11/2009 17:57 Mark Atkinson said the following:
>>> superpages and no machine check - works
>>> machine check and no superpages - works
>>> machine check and superpages - problem
>> That's not quite the same for sure, definitely try replacing the memory
>> first if you haven't already.
> 
> I am not sure why would you say this.
> I still see more similarities than differences:
> 1. in all cases it's family 10h CPUs
> 2. in all cases turning off super-pages helps
> 3. in all case failure seems to happen through MCA mechanism
> 
> The hardware is quite tested too.
> 

Sorry, I only mentioned the difference in that in my case and
the case you listed as:

'superpages and no machine check - works'

Always ends up in either

* hardware reset on my machine (watchdog or other), or
* bus error during compilation

when doing buildworld with superpages on my affected machine. You seem
to list here that turning off superpages always helps, so that matches
my behavior.  I tried looking back through your posts to find the
discrepancy, but didn't garner enough detail.

All the best,


Mark