[openib-general] Re: page allocation failure with kdapl/mthca

[Hal Rosenstock]

On Thu, 2005-06-23 at 02:42, Grant Grundler wrote:
> On Wed, Jun 22, 2005 at 12:00:10PM -0700, Roland Dreier wrote:
> >     Roland> I just checked in a change that converts from using
> >     Roland> pci_alloc_consistent(), which is always GFP_ATOMIC, to
> >     Roland> dma_alloc_coherent(..., GFP_KERNEL).
> 
> This arch specific.
> 
> On ia64 I expect both functions to land in the same bit of code.
> For ZX1 platforms, that is sba_alloc_coherent().
> See arch/ia64/hp/common/sba_iommu.c since the behavior is
> different depending on CONFIG_NUMA setting.
> 
> Sorry, I missed/forgot what the original problem was.

The original problem (for me) was that there was a page allocation
failure with kdapl/mthca on a create QP (and the driver changed but
kdapl didn't in terms of this). I'm not sure which change introduced the
problem but it was fixed with r2666.

-- Hal