Fatal trap when starting 2nd processor

[Willem Jan Withagen]

Doug White wrote:

>On Wed, 13 Oct 2004, Willem Jan Withagen wrote:
>
>  
>
>>Hi,
>>
>>It's been al long time since, but as of this motning I get:
>>
>>ad0: 238475MB <WDC WD2500JB-00EVA0/15.05R15> [484521/16/63] at
>>ata0-master UDMA100
>>SMP: AP CPU #1 Launched!
>>kernel trap 12 with interrupts disabled
>>
>>
>>Fatal trap 12: page fault while in kernel mode
>>cpuid = 1; apic id = 01
>>fault virtual address   = 0x0
>>    
>>
>
>Hm, null pointer dereference. Bad CPU maybe?
>
>A traceback would be nice.
>
>The LOR is probably a red herring.
>  
>
The box froze, no backtrace for the LOR.
Got a few times more, some with backtrace.

But a cvsup, new kernelconfig and build/installkernel cycle fixed the 
problem.
No I have to figure out what the significant differences were.

--WjW