Messages in this thread |  | | Date | Thu, 13 Feb 2014 15:16:28 -0500 | From | Dave Jones <> | Subject | Re: 3.14-mw regression: rtl8169 WARNING: DMA-API: exceeded 7 overlapping mappings of pfn 55ebe |
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On Tue, Feb 11, 2014 at 06:07:10PM -0800, Dan Williams wrote:
> The overlap granularity is too large. Multiple dma_map_single > mappings are allowed to a given page as long as they don't collide on > the same cache line. > > > Please try the attached patch to see if it fixes this issue. Works ok for me.
FWIW, since applying this, I haven't seen the 8169 warnings.
thanks,
Dave
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