[openib-general] Re: Page allocation failures & kdapltest oops

Hal Rosenstock halr at voltaire.com
Tue Sep 27 09:40:45 PDT 2005


On Tue, 2005-09-27 at 12:40, James Lentini wrote:
> It looks like you have DEBUG_PAGEALLOC turned on. Is that correct? 

Yes.

> My 
> test systems don't have this turned on. I'll turn it on and see what 
> happens.
> 
> Since we don't check for a kmalloc failure in DT_Tdep_PT_Printf, this 
> oops occurs:
> 
> > Sep 26 10:29:30 hal kernel: Unable to handle kernel NULL pointer 
> > dereference at virtual address 00000004
> 
> I've checked in the patch below to fix that, but this is not the root 
> of the problem. 

I'll try it with the patch and let you know how it behaves. When it
still runs out of memory will it fail more gracefully ? I understand it
won't fix the root cause of running out of memory.

-- Hal





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