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On Dec 17, 2005, at 1:56 , Thor Lancelot Simon wrote:

> One of the 4-cpu build machines hung in a very odd way tonight, after
> being up and running happily for quite a while.
>
> It won't respond on the network or on the console, though it *will*  
> trap
> to DDB.  What's interesting is what the first backtrace looks like any
> time I enter DDB (if I exit DDB, it stays hung just like it was  
> before,
> though I can reenter DDB at will):

This looks very similar what I am seeing on my 2-CPU AMD system. See  
kern/32162: [netbsd-3.0] kernel dead-lock in MP system.

-- 
     aew


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