Andreas wrote: > Le Samstag, 28. Juli 2007, Hans Verkuil a écrit : > >> Hi all, >> >> A lot of progress is being made these days, thanks to the various >> testers and in particular the discovery by Mark Bryars relating large >> DMA tranfers with DMA timeouts. >> >> I've reworked the DMA handling in the driver to do the scatter/gather >> inside the driver instead of relying on the DMA engine of the >> cx23415/6. So the buffers are still the same size, but it still seems >> to run smoothly. Note that the DMA of the ivtv-fb framebuffer has not >> yet been converted. It works, but DMA timeouts might still happen >> there. Although to be fair the decoder DMA engine seems to work much >> better so DMA timeouts are not really an issue here. >> >> It is bleeding edge software which has limited testing, so be careful. >> >> Nevertheless, it is a major breakthrough and I'd like people to start >> testing it is possible and report back with any problems (or success if >> previous problems are now solved). >> >> For the ivtv-0.10.x series you can get the updated driver here: >> >> http://ivtvdriver.org/viewcvs/ivtv/branches/0.10.tar.gz?view=tar >> >> And for the 2.6.22 and up kernels you can get a v4l-dvb repository >> containing these changes here: >> >> http://www.linuxtv.org/hg/~hverkuil/ivtv-dma/archive/tip.tar.bz2 >> >> Note that these repositories also contain the previous fixes regarding >> freezes when changing channels, and in addition they contain a fix for >> capturing raw video (in particular) where the driver now ensures that >> you always get full frame and never a partial frame (could happen if >> the application didn't read fast enough). >> >> Thanks, >> >> Hans >> >> _______________________________________________ >> ivtv-users mailing list >> [email protected] >> http://ivtvdriver.org/mailman/listinfo/ivtv-users >> > > I have been using the fixed 0.10.5 for two weeks now, and for my cards (I > have two identical HP Falcon 2 cards) it is a total success. I used to see > stuff like this[1] in /var/log/messages almost every day, and with the > fixed driver I don't have any error messages at all from ivtv anymore. > > I'm running the 0.10 tip version that was posted with the parent, or maybe it was a followup. Anyway, I'm at 24 days uptime and it's still working and my fingers are still crossed.
I really hope I haven't jinxed myself by posting this... Bill _______________________________________________ ivtv-users mailing list [email protected] http://ivtvdriver.org/mailman/listinfo/ivtv-users
