Re: [PATCH 1/2] kmemcheck v3

[Andi Kleen]

On Fri, Feb 08, 2008 at 01:37:11PM +0200, Pekka Enberg wrote:
> Hi Andi,
> 
> On Feb 8, 2008 1:55 PM, Andi Kleen <andi@xxxxxxxxxxxxxx> wrote:
> > Also i'm not sure how you handle initializedness of DMAed data
> > (like network buffers). Wouldn't you need hooks into pci_dma_*
> > for this?
> 
> If the DMA'd memory is allocated from the page allocator, we don't

RX Network packets are usually allocated with kmalloc

Undoubtedly there are others too, e.g. USB comes to mind.

> need to worry about it just yet. In case it's from kmalloc() you can
> pass __GFP_NOTRACK to annotate those call sites where the memory is

Ok you should add that then to skbuff.c. 

-Andi
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