On 9/2/19 12:31 AM, Hans Verkuil wrote: > Hi Scott, Hi Hans! Thank you for the speedy reply. :) > The only non-trivial change in hdpvr in 5.3 is this commit: > > commit 6bc5a4a1927556ff9adce1aa95ea408c95453225 > Author: Hans Verkuil <hverkuil@xxxxxxxxx> > Date: Thu Jun 20 07:43:41 2019 -0400 > > media: hdpvr: fix locking and a missing msleep > > Try reverting it and see if it makes a difference. I should mention that I haven't tried this driver for over a year, so it's not just the change to 5.3 that we would be talking about. Tried reverting the commit and built Linux 5.3-rc7+ -- alas, it didn't change anything. > > Also test with 'v4l2-ctl -d /dev/videoX --stream-mmap' and see if it > keeps streaming buffers or if it also stalls. That doesn't seem to work: $ v4l2-ctl -d /dev/video2 --stream-mmap New timings found VIDIOC_REQBUFS: failed: Inappropriate ioctl for device I suspect I might have to do a git bisect to find where the problem started. -Scott
