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the_crowbar
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 Posted: Fri Nov 03, 2006 7:31 am |
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Joined: Mon Aug 28, 2006 4:50 pm
Posts: 42
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Yesterday yielded more errors. With the PCI latency set lower in the BIOS the system recorded on both cards for quite some time. I started it recording on both cards around 1:00 PM. At 4:51 PM the ivtv driver tanked which stopped myth from recording on either card. I have a kernel crash dump, but I don't think it is very useful.
Code: Nov 2 16:49:37 mythtv kernel: ivtv0 warning: offset 80 -> 128
Nov 2 16:49:39 mythtv kernel: ivtv0 warning: offset 128 -> 0
Nov 2 16:51:34 mythtv kernel: ivtv0 warning: ENC: (0) DMA Error 0x0000000b 00020005
Nov 2 16:51:34 mythtv kernel: ivtv0 warning: offset 0 -> 128
Nov 2 16:51:35 mythtv kernel: ivtv0 warning: offset 128 -> 116
Nov 2 16:51:52 mythtv kernel: ivtv0 warning: ENC: REG_DMAXFER 2 wait failed
Nov 2 16:51:52 mythtv kernel: ivtv0 warning: ENC: (0) DMA Error 0x00000001 00000001
Nov 2 16:51:52 mythtv kernel: ivtv0 warning: ENC: REG_DMAXFER 2 wait failed
Nov 2 16:51:52 mythtv kernel: ivtv0 warning: ENC: (1) DMA Error 0x00000001 00000001
Nov 2 16:51:52 mythtv kernel: ivtv0 warning: ENC: REG_DMAXFER 2 wait failed
Nov 2 16:51:52 mythtv kernel: ivtv0 warning: ENC: (2) DMA Error 0x00000001 00000005
Nov 2 16:51:53 mythtv kernel: ivtv0 warning: ENC: REG_DMAXFER 2 wait failed
Nov 2 16:51:53 mythtv kernel: ivtv0 warning: ENC: (3) DMA Error 0x00000001 00000005
Nov 2 16:51:53 mythtv kernel: ivtv0 warning: ENC: REDO DMA took too many tries.
Nov 2 16:51:53 mythtv kernel: ivtv0 warning: Error Encoder DMA
Nov 2 17:10:46 mythtv -- MARK --
Nov 2 17:30:46 mythtv -- MARK --
Nov 2 17:50:46 mythtv -- MARK --
Nov 2 18:10:47 mythtv -- MARK --
Nov 2 18:30:47 mythtv -- MARK --
Nov 2 18:50:47 mythtv -- MARK --
Nov 2 19:00:10 mythtv kernel: c01638c1
Nov 2 19:00:10 mythtv kernel: Modules linked in: w83627ehf hwmon i2c_isa sg snd_pcm_oss snd_mixer_oss nvidia agpgart msp3400 saa7115 tda9887 ivtv snd_bt87x shpchp pci_hotplug
8250_pnp lirc_mceusb2 lirc_dev usb_storage libusual ipv6 tsdev usbhid ttusb_dec ttusbdecfe dvb_ttusb_budget cx22700 budget_av tda10021 budget_ci budget s5h1420 budget_core dv
b_ttpci l64781 tda8083 stv0297 sp8870 ttpci_eeprom saa7146_vv saa7146 mt312 tda1004x ves1820 stv0299 ves1x93 evdev dvb_bt8xx nxt6000 mt352 dvb_pll sp887x dst_ca or51211 zl1035
3 lgdt330x dst bt878 cx24110 dvb_core v4l1_compat autofs4 af_packet snd_hda_intel snd_hda_codec snd_pcm snd_timer snd soundcore snd_page_alloc tuner tvaudio bttv video_buf ir_
common compat_ioctl32 i2c_algo_bit v4l2_common btcx_risc tveeprom i2c_core videodev parport_pc parport 8250 serial_core pcmcia firmware_class yenta_socket rsrc_nonstatic pcmci
a_core video thermal processor fan container button battery ac genrtc ohci1394 ieee1394 ehci_hcd ohci_hcd uhci_hcd usbcore aacraid a100u2w 3w_9xxx 3w_x
Nov 2 19:00:10 mythtv kernel: xx megaraid_sas tmscsim raid_class megaraid sata_uli sata_sil24 sata_qstor sata_mv BusLogic
Nov 2 19:00:10 mythtv kernel: EIP: 0060:[free_block+81/208] Tainted: P VLI
Nov 2 19:00:10 mythtv kernel: EFLAGS: 00010046 (2.6.17-chw-8-nosmp #1)
Nov 2 19:00:10 mythtv kernel: <6>note: events/0[4] exited with preempt_count 1
Nov 2 19:10:47 mythtv -- MARK --
Nov 2 19:30:47 mythtv -- MARK --
At this point I am going to switch back to two WinTV cards and set the system up so it can actually be used. When I get a spare PC on my work bench I may throw the PVR-250 card in it and play around some more.
Thanks again for all the help and suggestions while I fought with this card. It amazes me that I have almost identical hardware at home using a PVR-500 card without problems.
Thanks,
James
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joelsplace
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Posted: Sat Nov 04, 2006 4:14 pm |
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Joined: Mon May 29, 2006 4:58 pm
Posts: 58
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Here's my 2 cents from someone with a lot of experience with hardware problems. I've had lots of DDR400 memory over the past year that would pass memtest just fine and still cause problems like you are having. If you can overclock the memory about 5% try running memtest like that. Memtest is also able to change memory timings on the fly to see if that makes any difference. I was having the same random frontend crashes and hard locks with my KnoppMyth R5C7 box and it turned out that one of my three memory slots was bad. A lot of DDR 400 memory is supposed to run at 2.8V and the BIOS will many times autoset it at 2.6V or lower. I would update to the latest MB BIOS if you haven't already since many BIOS updates address memory compatibility issues and other things that may not be noted. The BIOS update may help also if it is a PCI timing issue. You may also want to try the cards in different slots so they don't share an IRQ with something else. The MB manual should tell you what slots share IRQs with what. Try turning off devices in the BIOS that you aren't using such as serial and parallel ports.
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the_crowbar
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Posted: Mon Nov 06, 2006 12:42 pm |
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Joined: Mon Aug 28, 2006 4:50 pm
Posts: 42
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joelsplace: Thanks for the info. I will have to check and see if I can change the memory voltage. The BIOS has been updated to the latest. The memory in question is Crucial ValueRAM which tends to be of good quality.
I am pretty sure that the lockups I was experiencing were due to the PVR-250 card. Of course if I could get it working I would prefer it over the WinTV.
Thanks,
James
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joelsplace
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Posted: Mon Nov 06, 2006 1:12 pm |
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Joined: Mon May 29, 2006 4:58 pm
Posts: 58
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Crucial Ballistix DDR500 running at DDR400 is what I've been having the most trouble with. I've had to RMA a bunch of it. Worked fine for a few months and then started having trouble. I haven't tried any of their other RAM in a few years.
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neutron68
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Posted: Wed Dec 27, 2006 9:19 pm |
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Joined: Tue Mar 28, 2006 8:26 pm
Posts: 804
Location:
Minneapolis, MN
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I've also had random lockups in the last 3 months running KM R5D1. I believe I'm running the same motherboard as the original post of this thread 
After reading through this thread, it looked like memory was a good place to start trying fixes.
I looked up the memory specs I bought for this KnoppMyth pc - 2 sticks of 512MB A-DATA DDR 400. The specs say it has a CAS Latency of 3. So, I went into the motherboard bios settings and set the CAS Latency from Auto to Manual and entered 3 in there. I've not had a random lock up since doing that a week ago.
Hopefully, I've hit it and this won't be a problem again!
Eric
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KnoppMyth R5.5, Asus A8N-VM CSM (nvidia 6150 onboard video), AMD Athlon 64 dual-core 4200+, two 1GB sticks DDR 400, HD-3000 HDTV card, PVR-150 card, Iguanaworks RS-232 IR receiver/transmitter, Pioneer DVR-110 DVD burner
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neutron68
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Posted: Wed Jan 03, 2007 6:51 pm |
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Joined: Tue Mar 28, 2006 8:26 pm
Posts: 804
Location:
Minneapolis, MN
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Well, it locked up again yesterday. It ran for 2 weeks with no lockups after I changed the manual CAS latency settings to 3 in the motherboard BIOS. I really thought I had a fix.
I guess I'll try different sticks of RAM next and see if that fixes it.
Judging by the fact that numerous other people have seen these random lockups, could this be a bug in the particular Linux kernal version we are using?
I've not seen this kind of random lockup problem on any of my Windows manchines before.
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KnoppMyth R5.5, Asus A8N-VM CSM (nvidia 6150 onboard video), AMD Athlon 64 dual-core 4200+, two 1GB sticks DDR 400, HD-3000 HDTV card, PVR-150 card, Iguanaworks RS-232 IR receiver/transmitter, Pioneer DVR-110 DVD burner
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joelsplace
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Posted: Sat Jan 06, 2007 12:36 pm |
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Joined: Mon May 29, 2006 4:58 pm
Posts: 58
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After I fixed my memory problems R5C7 ran great for months. I upgraded to R5D1 + .20 and now the backend quits recording at random intervals. Sometimes it will run for a couple of weeks and quit but it isn't locked up. I reboot and all is well. ???? R5E50 is where I need to go now since my frontends aren't Knoppmyth and they all talk 31 instead of 30. Maybe that will fix my backend failures.
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R7.4 Master Backend/Frontend 1 Ceton InfiniTV 4 AMD x4 9850/4GB/nVidia210 60GB SSD 5x2TB RAID5
Slave Backend/Frontend 1 Ceton InfiniTV 4 AMD 1050x6/4GB/NVidia 9500 40GB SSD 2x500GB SATA Maxtor
(Can't get 2nd Ceton tuner to work)
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neutron68
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Posted: Sun Jan 14, 2007 6:21 pm |
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Joined: Tue Mar 28, 2006 8:26 pm
Posts: 804
Location:
Minneapolis, MN
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I started getting more frequent lockups in the last week, so I finally replaced the DDR sticks. I took out the ADATA memory and moved them to another machine. The lockups followed the ADATA memory!
For now, my KnoppMyth machine is free of random lockups.
Eric
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KnoppMyth R5.5, Asus A8N-VM CSM (nvidia 6150 onboard video), AMD Athlon 64 dual-core 4200+, two 1GB sticks DDR 400, HD-3000 HDTV card, PVR-150 card, Iguanaworks RS-232 IR receiver/transmitter, Pioneer DVR-110 DVD burner
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ausmoike
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Posted: Wed Jan 17, 2007 5:27 am |
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Joined: Thu Jan 04, 2007 11:51 pm
Posts: 7
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Heres a hint. In a minimally installed system (i.e. starting to config it) i had a geforce 2 card in my pc and was getting these random front end/total crashes all over the place and was unable to get the pc to finish the basic setup without throwing a wobbly.
It drove me mad. I then swapped the card for a TNT2 and restarted the install from scratch. I dont get the crashes anymore, and now i also get the system to work more in the install. all i need to do now is figure out the stupid tuning thing.
onward & upward!!
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