Am 14.09.2006 um 06:30 schrieb Bob Cottingham: > I've had occasional instances of seeing DMA Error 0x0000000b with > my two > PVR-250s recording to the local hard disk using ivtv-0.4.6 on > Ubuntu 5.10 > and 6.06. I've have disabled powernowd and don't run any other cpu > freq or > RAID software that has been mentioned as causing this error (would LVM > make a difference?). The errors result in corrupt recordings until > I do a > cold reboot of the machine. Tonight I had the following errors in my > syslog while recording two shows. ivtv1 continued recording without > problem.
I think LVM would be the same as RAID because 2 Hard Disks are used at the same time and produce a lot of traffic on the PCI Bus. Because of this the DMA engine of the PVR-Card has to wait too long and produces these errors. Since I use an normal IDE Disk I haven't seen this errors any more. > > Sep 13 19:08:43 localhost kernel: [17424907.364000] ivtv0 warning: > ENC: > (0) DMA Error 0x0000000b > Sep 13 19:10:47 localhost kernel: [17425030.992000] ivtv0 warning: > ENC: > REG_DMAXFER 2 wait failed > Sep 13 19:10:53 localhost kernel: [17425037.028000] ivtv0 warning: > ENC: > DMA still Pending while stopping capture! > > I can't recall seeing DMAXFER previously or having the recording > stop like > this. Any reason I would be seeing this if I'm not using cpu frequency > changing software? > I also don't see the DMAXFER error every time. But most of the times. > Thanks, > Bob C > > > _______________________________________________ > ivtv-users mailing list > [email protected] > http://ivtvdriver.org/mailman/listinfo/ivtv-users > _______________________________________________ ivtv-users mailing list [email protected] http://ivtvdriver.org/mailman/listinfo/ivtv-users
