On Fri, Sep 28, 2012 at 12:38:15PM +0200, Thierry Reding wrote:

quoted

I've been running a few tests and indeed this solves the obvious problem
that the coherent pool cannot be created at boot (which in turn caused
the ethernet adapter to fail on Tegra).

However I've been working on the Tegra DRM driver, which uses CMA to
allocate large chunks of framebuffer memory and these are now failing.
I'll need to check if Minchan's patch solves that problem as well.

Indeed, with Minchan's patch the DRM can allocate the framebuffer
without a problem. Something else must be wrong then.

Can you check if Minchan's version 100% succeeds and my version 100%
fails or is it a case that sometimes CMA works and sometimes fails with
both versions?

I'll examine the patch of course and see what flaw is there this time.

-- 
Mel Gorman
SUSE Labs

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