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

[Grant Grundler]

On Thu, Jun 23, 2005 at 06:45:21AM -0400, Hal Rosenstock wrote:
> > 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.

Ah ok. We (or at least I) haven't "leaned on" openib.org very hard yet
in terms of memory pressure and "normal" operation. I've asked for some
help with testing inside HP and expect I can look more into this after
OLS/LWE-SF/HPWorld in July/August.

thanks,
grant