Em 22-06-2012 05:50, Laurent Pinchart escreveu: > Hi Hans, > > On Friday 22 June 2012 09:50:44 Hans Verkuil wrote: >> On 22/06/12 05:39, Prabhakar Lad wrote: >>> Hi Federico, >>> >>> Recent patch from you (commit id a8f3c203e19b702fa5e8e83a9b6fb3c5a6d1cce4) >>> which added cached buffer support to videobuf dma contig, is causing my >>> driver to crash. >>> Has this patch being tested for 'uncached' buffers ? If I replace this >>> mapping logic with remap_pfn_range() my driver works without any crash. >>> >>> Or is that I am missing somewhere ? >> >> No, I had the same problem this week with vpif_capture. Since I was running >> an unusual setup (a 3.0 kernel with the media subsystem patched to 3.5-rc1) >> I didn't know whether it was caused by a mismatch between 3.0 and a 3.5 >> media subsystem. >> >> I intended to investigate this next week, but now it is clear that it is >> this patch that is causing the problem. > > Time to port the driver to videobuf2 ? ;-) The regression needs to be fixed anyway, and send to stable. A patch that converts it to VB2 won't met stable requirements. Regards, Mauro -- To unsubscribe from this list: send the line "unsubscribe linux-media" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
