System Crashes; Log Included

captain_morgan · Post by **captain_morgan** » Thu Jul 19, 2007 11:26 pm

Hi all... I'm getting an error on one of my dvr's that goes something like this:

Jul 19 03:40:31 video zma_m3[25536]: INF [Front_Parking: 1115837 - Gone into alert state]
Jul 19 03:40:33 video kernel: bttv3: OCERR @ 36cf7014,bits: HSYNC OFLOW FBUS OCERR*
Jul 19 12:08:31 video syslogd 1.4.1: restart.

The restart is manual. It hard locks the system.

Post by **cordel** » Fri Jul 20, 2007 5:52 am

First I would check the input for the device, try hooking the cam up (or another cam) to Video3 and see if the possible sync issue goes away. If that don't give ya any joy, check for a new kernel (shame on you for not providing your Distro/Release and no dmesg output for bttv, or Info on the card you have installed

). Else you might have to give a shot at a different Distro and see if some one else might have inclused a patch to this problem in their kernel.

captain_morgan · Post by **captain_morgan** » Fri Jul 20, 2007 5:59 am

Thanks for the response...

Now that you mention it, I've been having trouble with that input. The camera keeps loosing signal, intermittently. I just figured it was the camera. I wonder if it's the card? I'll try putting the camera on another input and see if the signal breaks continue. Thanks Corey.

Post by **cordel** » Fri Jul 20, 2007 6:03 am

No Problem. I should have better clarified though that what I was getting at was not the camera, but the feed line. If it's a long run it might be picking up noise from AC lines or something in that nature. So by hooking the cam right to the back of the card would verify the cam is good and you have a feed problem, or look at the cam vs the input.

KeithB · Post by **KeithB** » Fri Jul 20, 2007 11:44 am

Morgan are you using an ebay type 8 chip capture card AKA 8800 card by any chance? I'm having the same problem as you. I'm using Ubuntu 6.06 64bit and the crash could happen in as little as 1 hour or as long as 2 days. I'm comming to the conclusuion that the card has crashed and the kernel is waiting for some handshaking that never comes. Even if there is a patch it wouldnt help with the crashed card which requires a reboot.

This could be heat related as it seems to be happening more in the summer and those chips get too hot.

Lee Sharp · Post by **Lee Sharp** » Fri Jul 20, 2007 3:08 pm

Have you touched the chip while the card is running? Many of these cheap cards come with no heat sinks, and I just don't know why. When they bake, things break, and soon after, things crash. I never put a capture card is a system without heat sinks. Cheap insurance.

captain_morgan · Post by **captain_morgan** » Fri Jul 20, 2007 3:18 pm

It's a bluecherry card, but, ebay or not, they probably all come from the same place. I'm going to check out the overheating, though. One of the employees told me that someone has been turning off the a/c unit in the server room, so that may be the problem, too. Probably an angry employee.

Post by **cordel** » Fri Jul 20, 2007 5:53 pm

Yes I agree with Lee and do the same thing my self. When I get a new card, I allways add head sinks to the bt878 chips.

Lee Sharp · Post by **Lee Sharp** » Sat Jul 21, 2007 1:13 am

Blue Cherry has good stuff and good service. But the heat on ProVideo cards is quite high. We had quite a few behave flaky with LuxRiot. They tried all kinds of hardware swaps, and all would fail about a month later. But heat sinks worked! Something else to consider is http://www.zalman.co.kr/usa/product/vie ... 5&code=016 with multi card systems.