[mythtv-users] Kernel Crash when starting up in au0828-video.c line 895

[Mark Lord]

On 12-04-08 02:34 AM, f-myth-users at media.mit.edu wrote:
>     > Date: Sat, 07 Apr 2012 20:56:23 -0400
>     > From: Mark Lord <mythtv at rtr.ca>
> 
>     > I should add that, even with the above workarounds, there is STILL an issue
>     > when mythbackend starts up:  If you have "multi-rec" enabled (more than one
>     > virtual tuner per physical HVR-950Q), then the backend will have several
>     > near-simultaneous "tune to initial channel" calls into the drivers.
> 
>     > This will cause tuner failure.
> 
> I haven't been following this thread closely (not my hardware), but
> would it be possible to tune using an external tuner script that uses
> a mutex and some sleeps to avoid simultaneous tunes?  I have no idea
> if the way multirec tunes this hardware is amenable to breaking it
> out externally like that.

Mythtv doesn't offer external channel change scripts for all digital tuners,
dunno if it has the option for the 950Q or not.

But the place for the mutex is somewhere in one of the drivers that manages
the 950Q, probably in the au0828 driver.  At some point I suspect I'll go in
there and just fix the danged thing myself.  But for now, disabling multirec
keeps it working well enough.

Cheers