Re: [PATCH 0/5] make slab gfp fair

Christoph Lameter
2007-05-16T20:45:14Z

On Wed, 16 May 2007, Peter Zijlstra wrote:

> > How does all of this interact with
> >
> > 1. cpusets
> >
> > 2. dma allocations and highmem?
> >
> > 3. Containers?
>
> Much like the normal kmem_cache would do; I'm not changing any of the
> page allocation semantics.

So if we run out of memory on a cpuset then network I/O will still fail?

I do not see any distinction between DMA and regular memory. If we need
DMA memory to complete the transaction then this wont work?

> But its wanted to try the normal cpu_slab path first to detect that the
> situation has subsided and we can resume normal operation.

Is there some indicator somewhere that indicates that we are in trouble? I
just see the ranks.