[linux-dvb] Re: card firmware/interrupt issues

[Johannes Stezenbach <js@linuxtv.org>]

Hamish Moffatt wrote:
> I've had problems in the past with FDSR and FBUS errors from the BT878
> on my Aver761 card. These were particularly common during high I/O times
> eg MythTV starting to record off two DVB cards at once.
> 
> Tonight I had a weird problem where both my DVB cards reported errors at
> once. The Nova-T gave an interrupt warning, and the Aver761 output FDSR
> errors for the next *12 minutes*. The system was idle at the time, as
> best I can workout. Certainly Myth wasn't recording.
> 
> Both cards were tuned to the same station, though the demux wasn't
> enabled. Is it possible for received station data to cause microcode
> errors on these two cards?
> 
> The only other factor is that I added a Wifi card to the system and it's
> in the slot next to the Aver761. However it's not enabled yet (no
> drivers etc). Has anyone had issues with interference between Wifi and
> DVB cards?
...
> Jan 16 19:16:32 tv kernel: saa7146: interrupt_hw(): warning: interrupt enabled,
> but not handled properly.(0xe7fcfbb7)
                            ^^^^^^^^^^
I wonder how that is possible. It looks like
	isr = saa7146_read(dev, ISR);
returned bogus results which suggests that something went wrong
on the PCI bus.

This is bad. Is your power supply OK?

Johannes