From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from psmtp.com (na3sys010amx166.postini.com [74.125.245.166]) by kanga.kvack.org (Postfix) with SMTP id D2BD86B0068 for ; Fri, 28 Sep 2012 06:53:01 -0400 (EDT) Date: Fri, 28 Sep 2012 11:52:55 +0100 From: Mel Gorman Subject: Re: CMA broken in next-20120926 Message-ID: <20120928105255.GA29125@suse.de> References: <20120927112911.GA25959@avionic-0098.mockup.avionic-design.de> <20120927151159.4427fc8f.akpm@linux-foundation.org> <20120928054330.GA27594@bbox> <20120928083722.GM3429@suse.de> <50656459.70309@ti.com> <20120928102728.GN3429@suse.de> <20120928103207.GA22811@avionic-0098.mockup.avionic-design.de> <20120928103815.GA15219@avionic-0098.mockup.avionic-design.de> MIME-Version: 1.0 Content-Type: text/plain; charset=iso-8859-15 Content-Disposition: inline In-Reply-To: <20120928103815.GA15219@avionic-0098.mockup.avionic-design.de> Sender: owner-linux-mm@kvack.org List-ID: To: Thierry Reding Cc: Peter Ujfalusi , Minchan Kim , Andrew Morton , Marek Szyprowski , Michal Nazarewicz , linux-kernel@vger.kernel.org, linux-mm@kvack.org, Bartlomiej Zolnierkiewicz , Kyungmin Park , Mark Brown On Fri, Sep 28, 2012 at 12:38:15PM +0200, Thierry Reding wrote: > > > > > > 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 -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org