8.0RC2 amd64 - kernel panic running make buildworld

[Andriy Gapon]

on 12/11/2009 18:34 S.N.Grigoriev said the following:
> 
> 12.11.09, 15:36, "Andriy Gapon" <avg at icyb.net.ua>
> wrote:
> 
>> Serguey,
>> are you sure that setting vm.pmap.pg_ps_enabled=0 doesn't help you?
>> I know that already asked you this once.
>> But, could you please try again with vm.pmap.pg_ps_enabled=0 and hw.mca.enabled=1
>> and see what kind of behavior you get?
>> I am curious what would happen, would it be the same kind of machine check condition.
> 
> Andriy,
> 
> I've done the world compilation with 'vm.pmap.pg_ps_enabled=0'.
> The first attempt has finished with silent reboot. The second one has
> been captured by the debugger:
> 
> panic: backgroundwritedone: lost buffer
> cpuid = 0
> KDB: enter: panic
> [thread pid 3 tid 100014 ]
> Stopped at breakpoint+0x5: leave
> 

This is a really weird panic.
Looks like perhaps there are multiple problems with your system.  I wouldn't
rule out a real hardware problem.  Not sure what can be done.

-- 
Andriy Gapon