Hans Verkuil wrote: > On Thursday 08 March 2007 23:05, pomidorabelisima wrote: >> hard lockup with 2.6.19-1.2911.6.5.fc6 kernel >> firmware crash with 2.6.19-1.2911.6.4.el5(fc6) kernel >> firmware crash with 2.6.20 series kernels from >> FC7/rawhide >> and >> at least 2 days uptime with 2.6.18-1.2798.fc6 kernel >> with >> DEC DMA ERROR ffffffff >> DMA ERROR ffffffff ffffffff ffffffff -1 >> DMA ERROR 00000003 00000000 00000013 -1 >> ENC DMA ERROR b >> >> drawing to conclusion; >> something really weard going on with 2.6.19 and 2.6.20 >> series kernels >> no matter how kernels are configured >> mama mia > > Ah, so you DO get DMA errors. Possible causes:
not me, THE card ;)) > - you have a CPU frequency changer daemon running. Disable it: the PVR > hardware doesn't like that at all. nope; /etc/init.d/cpuspeed status cpuspeed is stoped > - software or hardware RAID can also cause it partialy, usr tree IS on: /dev/md4 on /usr type ext3 (rw) BUT input/output for mythtv mpegs IS on: /dev/sdd5 on /mythtv type xfs (rw) NON RAID disk so, partialy excluded > - el cheapo graphics cards using main memory as the framebuffer also > cause similar problems. nope; NV34 [GeForce FX 5200] DO NOT DO THAT there is NO onboard GPU > - older via motherboards are particularly prone to this. nope, nForce2 ultra chipset > - in general, VIA MBs are more sensitive to this issue than nVidia MBs, > and Intel MBs seem to be the best. IS nForce* chipsets prone to DMA issues, need more research so, partialy excluded > > The root cause is a buggy DMA engine and/or hardware of the cx23416. The yes yes you said that 100 times I DO NOT blame nither critisize YOU also, I understand that people from hauppauge produced THE card for usage on OS like win you know, it must reboot once per day.. :)) > Hauppauge PVR500 is actually the only card that seems to avoid this > problem (mostly) due to the PCI bridge that seems to isolate the > cx23416 from most PCI DMA issues. before pvr-150 was installed with only pvr-350 system hasn't got problem at all so cx23415 IS NOT problematic and yes cx23416 ON pvr-150 IS problematic cx23416 on PG600-2 need testing! found some stuff on pci latency pci_latency.sh from old trunk refered to Linux hardware stability guide, Part 2: http://www-128.ibm.com/developerworks/library/l-hw2.html and setpci -v -s 01:07.0 latency_timer=ff setpci -v -s 01:09.0 latency_timer=ff now there are: setpci -v -s 01:07.0 latency_timer 01:07.0:0d = fc setpci -v -s 01:09.0 latency_timer 01:09.0:0d = fc fc==252 I'll post what's going on rgds poma ____________________________________________________________________________________ Now that's room service! Choose from over 150,000 hotels in 45,000 destinations on Yahoo! Travel to find your fit. http://farechase.yahoo.com/promo-generic-14795097 _______________________________________________ ivtv-devel mailing list ivtv-devel@ivtvdriver.org http://ivtvdriver.org/mailman/listinfo/ivtv-devel
