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Date: Thu, 17 Jan 2013 14:47:23 +0100
From: Soeren Moch <smoch@web.de>
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To: Arnd Bergmann <arnd@arndb.de>
CC: Jason Cooper <jason@lakedaemon.net>, Greg KH <gregkh@linuxfoundation.org>,
        Thomas Petazzoni <thomas.petazzoni@free-electrons.com>,
        Andrew Lunn <andrew@lunn.ch>,
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        linux-kernel@vger.kernel.org, Michal Hocko <mhocko@suse.cz>,
        linux-mm@kvack.org, Kyungmin Park <kyungmin.park@samsung.com>,
        Mel Gorman <mgorman@suse.de>,
        Andrew Morton <akpm@linux-foundation.org>,
        Marek Szyprowski <m.szyprowski@samsung.com>,
        linaro-mm-sig@lists.linaro.org, linux-arm-kernel@lists.infradead.org,
        Sebastian Hesselbarth <sebastian.hesselbarth@gmail.com>
Subject: Re: [PATCH v2] mm: dmapool: use provided gfp flags for all dma_alloc_coherent()
 calls
References: <20121119144826.f59667b2.akpm@linux-foundation.org> <20130116024014.GH25500@titan.lakedaemon.net> <50F61D86.4020801@web.de> <201301171049.30415.arnd@arndb.de>
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On 17.01.2013 11:49, Arnd Bergmann wrote:
> On Wednesday 16 January 2013, Soeren Moch wrote:
>>>> I will see what I can do here. Is there an easy way to track the buffer
>>>> usage without having to wait for complete exhaustion?
>>>
>>> DMA_API_DEBUG
>>
>> OK, maybe I can try this.
>>>
>
> Any success with this? It should at least tell you if there is a
> memory leak in one of the drivers.

Not yet, sorry. I have to do all the tests in my limited spare time.
Can you tell me what to search for in the debug output?

Soeren