in the absence of a swap device, how does one prevent
resource(memory) starvation and hence a deadlock under
UVM? is it possible that a ramdisk will aggrevate a
deadlock?
thanks
-kamal

--- cgd@broadcom.com wrote:
> At Thu, 30 May 2002 14:05:43 +0000 (UTC), "YAMAMOTO
> Takashi" wrote:
> > comments?
> 
> you've given yourself an extra page, so fill it all
> with the magic
> number.  It's possible for a stack overflow to get
> 'lucky' and miss
> a single magic location.
> 
> 
> Actually, while you're at it...
> 
> You might provide a more generally-useful mechanism
> for debugging and
> system analysis:
> 
> * fill _all_ kernel stack areas _completely_ with a
> magic number, and
> 
> * provide a mechanism to check all of them to see
> how much has been
>   used.
> 
> (VxWorks provides a similar facility.)  I don't know
> that anybody's
> really looked at the actual kernel stack usage on
> most ports...
> 
> 
> 
> chris
> 
> 


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