[mythtv-users] corrupted video while recording and box will segfault then freeze nightly

[Chris Germano]

I'm having two serious problems with mythtv server box. I don't think either
are mythtv's fault, but hopefully someone can clue me in on what it is.

Specs Follow below

1. The first is a video corruption that I am seeing similiar to interlacing.
It happens every few minutes, and sometimes it gets very bad, other times
not so, it's on and off. It happens during the recording stage as when
paused it's still there, as well as when it is played back in a remote
frontend. As you can see for yourself, turning on/off the filters does
nothing because that's in the playback. The capture card is currently using
the last PCI slot, next to the Audigy, then there is the a ATA controller,
spare slot (wouldn't detect drives w/o this spare slot), then another ATA
controller, and finally the GeForce AGP. This might be causing this.

http://www.netslayer.net/mythtv/file1.jpg [De-Interlacing On]
http://www.netslayer.net/mythtv/file2.jpg [De-Interlacing On]
http://www.netslayer.net/mythtv/file3.jpg [No Filters]

2. Once a day I have to reboot the box. It will start to give segfaults
running everything. I will be using ssh on it, and just going su will
segfault it. Then my X will freeze and garble up. Sometimes if I'm quick I
can get it to shutdown itself before everything goes. I'm not sure if this
only happens when it's recording but i would lean to say it does. I suspect
a few things for this. First was that it was overheating, but now that I've
switched to round ata cables, and put fans everywhere I highly doubt it.
Second is that I'm maxing out my PCI bus, since I didn't have this problem
before with my Mandrake setup with 2 less HD's on the RAID and one less PCI
ata controller. Third my kernel is causing this. Any ideas?

When this occurs some errors logs from the backend:
2004-02-03 18:00:02 Changing from None to RecordingOnly
2004-02-03 19:00:00 Changing from RecordingOnly to None
2004-02-03 19:00:02 Found changes in the todo list.
2004-02-03 19:00:03 Started recording "Junkyard Mega-Wars" on channel: 1280
on $
2004-02-03 19:00:03 Changing from None to RecordingOnly
[mpeg4 @ 0x99f4170]I cbpy damaged at 8 2
[mpeg4 @ 0x99f4170]Error at MB: 100
[mpeg4 @ 0x99f4170]concealing errors

Frontend:
** This happened earlier today before the crash hrm
** Wasn't watching mythtv when it froze so no other frontend logs)
2004-02-03 00:19:19 Changing from None to WatchingRecording
[mpeg4 @ 0x8a6aa80]I cbpc damaged at 12 10
[mpeg4 @ 0x8a6aa80]Error at MB: 472
[mpeg4 @ 0x8a6aa80]concealing errors
2004-02-03 00:40:57 Changing from WatchingPreRecorded to None

What worries me is this error I just discoverd, it might prove my theory of
a ata controller/mobo problem. I'm seeing this from 2 Maxtor drives out of
the 4. These two are on one of the ata controller cards. hrm /dev/hdi & k
are the WD's on the other card. ** Very Important. These disk errors are not
found prior to January 29th, and I think they are NOT the cause. On that day
I screwed up the RAID by moving the drives around, eventually it came back
with a mkraid. Strange since I did run xfs_repair after, no problems. I did
switch the ata cables that day to new UV round ones, heh and it is only
coming from that one ata card..i'm so lost.

Feb  3 21:39:12 server hde: dma_intr: status=0x51 { DriveReady SeekComplete
Error }
Feb  3 21:39:12 server hde: dma_intr: error=0x84 { DriveStatusError BadCRC }
--
Feb  3 00:15:19 server hdg: dma_intr: status=0x51 { DriveReady SeekComplete
Error }
Feb  3 00:15:19 server hdg: dma_intr: error=0x84 { DriveStatusError BadCRC }

Sometimes on shutdown I receive a couple kernel panics, those can be seen in
my message.log file URL below.

Specs:
Both Machines run gentoo 1.4 with a custom (CK Sources 2.4.23 kernel),
fluxbox and MythTV CVS current as of days before the release of 0.14.

Masterbackend/frontend <<< This is the box with the problems
AMD 2400XP (not o/c'd for now) - Using a huge fan with copper heatsink (for
2600+)
512MB PC 2700 DDR
ECS K7S5A (SIS 530), Enermax 400 watt PS
Creative Labs Audigy PCI [Emu10k2 on ALSA]
NV GeForce 4mx440 64MB DDR AGP
WinTV 401 dbx Stereo Capture Card PCI [bttv/v4l] (non PVR model)
4x160GB 7200rpm drives on a RAID 0 (linux software) configuration, each with
it's own channel to 2x ata PCI controller cards. This is used for mythtv and
has XFS.
1x120GB 7200rpm root drive (ReiserFS)

LSPCI http://www.netslayer.net/mythtv/lspci.log
DMESG http://www.netslayer.net/mythtv/dmesg.log
/var/log/messages http://www.netslayer.net/mythtv/message.log

Slavebackend/frontend
AMD 1.33 Tbird
512MB PC133
ECS K7S5A Pro  (SIS 530)
Creative Labs Audigy PCI [Emu10k2 on ALSA]
NV GeForce 4mx440 64MB DDR AGP
ATI Wonder VE PCI
1x20GB 7200rpm root drive
SMC 54G PCI