Hello Sakari, Thanks for taking the time to investigate. See comments inline. On Sun, Jan 28, 2018 at 5:23 PM, Sakari Ailus <sakari.ailus@xxxxxxxxxxxxxxx> wrote: > Hi Devin, > > On Sun, Jan 28, 2018 at 09:12:44AM -0500, Devin Heitmueller wrote: >> Hello all, >> >> I recently updated to the latest kernel, and I am seeing the following >> dumped to dmesg with both au0828 and em28xx based devices whenever I >> exit tvtime (my kernel is compiled with CONFIG_VIDEO_ADV_DEBUG=y by >> default): > > Thanks for reporting this. Would you be able to provide the full dmesg, > with VB2 debug parameter set to 2? Output can be found at https://pastebin.com/nXS7MTJH > I can't immediately see how you'd get this, well, without triggering a > kernel warning or two. The code is pretty complex though. If this is something I screwed up when I did the VB2 port for em28xx several years ago, point me in the right direction and I'll see what I can do. However given we're seeing it with multiple drivers, this feels like some subtle issue inside videobuf2. Devin -- Devin J. Heitmueller - Kernel Labs http://www.kernellabs.com
