Re: iommu_iova leak [inside 3w-9xxx]

adam radford
2011-09-17T19:22:14Z

On Sat, Sep 17, 2011 at 7:29 AM, Chris Boot <bootc@bootc.net> wrote:
> On 17 Sep 2011, at 12:57, Chris Boot wrote:
>> On 17 Sep 2011, at 11:45, Woodhouse, David wrote:
>>> I suppose it's vaguely possible that we're leaking them in such a way
>>> that they remain on the rbtree, perhaps if the deferred unmap is never
>>> actually happening... but I think it's a whole lot more likely that the
>>> PCI driver is just never bothering to unmap the pages it maps.

If you think 3w-9xxx is not unmapping pages it maps, please re-run with
CONFIG_PCI_DMA_DEBUG=y

-Adam