On Feb 16, 2007, at 6:24 AM, Hans Verkuil wrote: > On Friday 16 February 2007 06:57, Ricardo Lugo wrote: >> Hans, >> >> I've been using the trunk r3799, and keep getting the following >> warnings in my dmesg. >> >> Feb 15 20:40:59 tube kernel: ivtv0 warning: Invalid PGM index >> 178891420 (>= 400) >> Feb 15 20:41:43 tube kernel: ivtv0 warning: Invalid PGM index >> 178892017 (>= 400) >> Feb 15 20:41:43 tube kernel: ivtv0 warning: Invalid PGM index >> 178899861 (>= 400) >> Feb 15 20:41:43 tube kernel: ivtv0 warning: Invalid PGM index >> 178891420 (>= 400) >> Feb 15 20:41:43 tube last message repeated 7 times >> Feb 15 20:41:43 tube kernel: ivtv0 warning: Invalid PGM index >> 155756842 (>= 400) >> Feb 15 20:41:43 tube kernel: ivtv0 warning: Invalid PGM index >> 178891420 (>= 400) >> Feb 15 20:41:43 tube last message repeated 13 times >> >> These are posted during recording (that was all the machine was >> doing). This is on my SMP PPC machine. The recording was 1-hour long >> and performed by MythTV using my PVR-350 yesterday. Yet, the machine >> has not been rebooted and it recorded a 1-hour show just fine >> tonight. What does this mean? > > ivtv-0.10.0 has a new feature where you can obtain an index into the > mpeg file from the card's hardware. That way you can very cheaply > determine where each frame begins in the mpeg file. That's very nice, > but it looks as if sometimes the index in the card's ringbuffer gets > corrupted. At least, that's what this message indicates. > > Can you tell whether these messages appeared directly when the > recording > started? Are they only intermittent? In the log excerpt I see a gap > between the first and second warning, but I can't tell how it > continuous afterwards.
Hans, Sorry for taking so long to respond. They are intermittent. In the above case, we are 40 minutes into the recording and commercial flagging. Again a few nights ago I got some more Invalid PGM Index errors, but they are now being accompanied by DMA Errors, and a hard-lockup of the machine immediately after this error. Mar 8 19:48:09 tube -- MARK -- Mar 8 19:59:53 tube kernel: ivtv0 warning: Invalid PGM index 178891420 (>= 400) Mar 8 20:28:09 tube -- MARK -- Mar 8 20:47:22 tube kernel: ivtv0 warning: Invalid PGM index 178891420 (>= 400) Mar 8 20:48:08 tube kernel: ivtv0 warning: DMA ERROR 00000003 00000000 00000003 -1 Hope this helps, Rick _______________________________________________ ivtv-devel mailing list ivtv-devel@ivtvdriver.org http://ivtvdriver.org/mailman/listinfo/ivtv-devel
