Mythtv live-tv problem since kernel-3.4.4-3
I've had live tv crashing and freezing since upgrading to kernel-3.4.4-3 in Fedora 17 and now also kernel-3.4.4-5. I still have 3.4.3-1 installed thank goodness and can revert to that for trouble free TV viewing in Mythtv. I have an Hauppauge PVR150 that uses lirc_zilog module (to show an svideo stream from Sky box) and I have an Nvidia GeForce 9600 GT with kmod-nvidia module loaded. Neither of which gave me any issues in the previous kernel. It's the feed from the Hauppauge card that freezes. Recorded programs play back fine.
I can supply any info required but basically since it worked fine before and now doesn't, can anyone help pinpoint what changed between kernel 3.4.3-1 and 3.4.4-3 to cause this? I had a quick look at the kernel change log but since I'm no developer of any sort, I'm in the dark.
/var/log/messages below from when the video pauses.
Jul 8 21:19:29 oscar kernel: [ 286.351686] IRQ 16 might be stuck. Polling
Jul 8 21:19:38 oscar kernel: [ 295.342308] NVRM: Xid (0000:01:00): 16, Head 00000001 Count 00004a19
Jul 8 21:19:47 oscar kernel: [ 304.117202] IRQ 16 might be stuck. Polling
Jul 8 21:19:55 oscar kernel: [ 312.368113] NVRM: Xid (0000:01:00): 8, Channel 00000006
Jul 8 21:19:56 oscar mythbackend: 2012-07-08 21:19:56.750499 E DevRdB(/dev/video0): Poll giving up 2
Jul 8 21:19:56 oscar mythbackend: 2012-07-08 21:19:56.750548 E MPEGRec(/dev/video0): Device error detected
Jul 8 21:19:57 oscar kernel: [ 314.367123] NVRM: os_schedule: Attempted to yield the CPU while in atomic or interrupt context
Jul 8 21:19:59 oscar kernel: [ 316.367689] NVRM: Xid (0000:01:00): 16, Head 00000001 Count 00004da9
Jul 8 21:20:17 oscar kernel: [ 334.066216] IRQ 16 might be stuck. Polling