[AG-TECH] Camera freezes after few days

[Douglas Kosovic]

Hi José,

When it happens again, you might try issuing something like:
  vic -D V4L2:/dev/video1 234.5.6.7/18000

to see what vic complains about.

But from your dmesg output, the BTTV driver is complaining about high IRQ PCI bus latencies and not being able to resynchronise.

If everything was working correctly for you in the near past, perhaps a recent kernel update may be the cause of the issue, try rebooting to previous version or two and see if that helps.


Cheers,
Doug

> -----Original Message-----
> From: ag-tech-bounces at lists.mcs.anl.gov [mailto:ag-tech-
> bounces at lists.mcs.anl.gov] On Behalf Of José Malvárez Carleos
> Sent: Monday, 24 August 2009 5:53 PM
> To: ag-tech at lists.mcs.anl.gov
> Subject: [AG-TECH] Camera freezes after few days
> 
> Hi.
> 
> We got some problems with Access Grid Server involving some camera
> issues. We got it running since the last few months and we have noticed
> that when it have been some days since we turned it on, one of the cameras
> gets freezed and the NodeService says Input/Output error. No error found
> in the Access Grid Logs by the way.
> 
> We have installed AccessGrid 3.1 in Fedora 10 so when we do dmesg we
> got this output:
> 
> bttv1: timeout: drop=0 irq=16904280/16904281, risc=36432000,
> bits: HSYNC OFLOWFBUS
> bttv1: SCERR @ 36432000,bits: HSYNC OFLOW FBUS SCERR*
> bttv1: SCERR @ 36432000,bits: HSYNC OFLOW FBUS SCERR*
> bttv1: SCERR @ 36432000,bits: HSYNC OFLOW FBUS SCERR*
> bttv1: timeout: drop=0 irq=16904310/16904311, risc=36432000,
> bits: HSYNC OFLOWFBUS
> bttv1: SCERR @ 36432000,bits: HSYNC OFLOW FBUS SCERR*
> bttv1: SCERR @ 36432000,bits: HSYNC OFLOW FBUS SCERR*
> bttv1: SCERR @ 36432000,bits: HSYNC OFLOW FBUS SCERR*
> 
> If we stop all the process and run them again, the freezed camera shows
> a greenscreen so we have to restart the system and then it would work
> fine again.
> 
> We have tested the cameras with xawtv and got no error, so it seems
> that's not a hardware problem.
> 
> Is there any solution?
> 
> Thanks.
>