[CentOS] Very odd issue w/ a CentOS 6 system

Wed Mar 23 16:39:07 UTC 2016
Phil Wyett <philwyett at irregulars-engineering.com>

On Wed, 2016-03-23 at 10:26 -0400, m.roth at 5-cent.us wrote:
> Phil Wyett wrote:
> > On Wed, 2016-03-23 at 09:20 -0400, m.roth at 5-cent.us wrote:
> >> Now, this is one we have an issue with: it's got a bttv card, and motion
> >> running on it. It's a Dell PE R720. For some reason, it has never liked
> >> the card: 20 min after reboot, it says fatal bus error... but nothing's
> >> wrong, and it runs just fine. Well, expect that we need to keep it on
> >> the 2.6.32-431.20.3 kernel, because *everything* later, it randomly starts
> >> rebooting, several times a day.
> <snip>
> >
> > What is the make/model of the card?
> lspci says:
> Brooktree Corporation Bt878 Audio Capture (rev 11)
> >
> > Are you supplying options when loading the bttv module?
> 
> On and off, I've been googling to find if there's something I can tell it,
> or the kernel on boot. Currently, I have, in /etc/modprobe.d/bttv:
> options i2c-algo-bit bit_test=1
> options bttv gbuffers=16 card=98,98,98,98,98,98,98,98
> radio=0,0,0,0,0,0,0,0 tuner=4,4,4,4,4,4,4,4 chroma_agc=1 combfilter=2
> full_luma_range=1 coring=1
> 
> which is something I got from googling as to how to get it working. Think
> there's something in that - the first line? that is not a good thing?
> 
>       mark
> 

Hi,

The options line 1 is used widely and only worth changing if all else
fails.

The second options line option of combfilter by docs indicate there is
no 2 option and is enabled by default, so you can remove that option to
test.

I would enable two possible compatibility options and see if that helps.

triton1=0/1 - for Triton1 (+others) compatibility.

vsfx=0/1 - yet another chipset bug compatibility bit

The triton1 insmod option sets the EN_TBFX bit in the control register.
The vsfx insmod option does the same for EN_VSFX bit. If you have
stability problems you can try if one of these options makes your box
work solid.

Source: http://xawdecode.sourceforge.net/aideUS/htmlpage/BTTV-param.htm

Regards

Phil
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