Messages in this thread | | | Date | Thu, 6 Feb 2014 11:12:15 -0800 | Subject | Re: 3.14-mw regression: rtl8169 WARNING: DMA-API: exceeded 7 overlapping mappings of pfn 55ebe | From | Dan Williams <> |
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On Thu, Feb 6, 2014 at 6:27 AM, Sander Eikelenboom <linux@eikelenboom.it> wrote: >>>> Not using it seems to prevent the warning, but before 3.14 i have never seen this (with r8169.use_dac=1) > >> If you are still hitting this with the patch: > >> 59f2e7df574c dma-debug: fix overlap detection > >> ...then I'm more inclined to think it is an actual positive report. > >> If you don't mind I'll send some debug patches to narrow this down. > > Please do .. sounds better than bisecting :-) >
Hi, attached is a patch that should give some insight whether the driver is triggering many overlapping mappings. Try it on top of 3.14-rc1.
Thank you for the debug help! [unhandled content-type:application/octet-stream] | |