[linux-dvb] SAA7146 DMA buffer overflow - delayed interrupts
abraham.manu at gmail.com
Sat Feb 25 18:52:14 CET 2006
Jon Burgess wrote:
> Ingo Schneider wrote:
>> It seems that the SAA7146 Interrupts are delayed for a very long time
>> while the rest of the system runs fine - very strange !
> Are you measuring the time in the context of the interrupt handler
> e.g. ttpci_budget_irq10_handler() or in the vpeirq tasklet? I
> believe that the tasklet may be delayed for some time if there are
> other tasklets active or if softirqd is busy doing other things.
The tasklet is indeed delayed. For the 878 based cads, this is a very
big issue. I have been doing somewhat similar things at my side ..
Still incomplete though.
More information about the linux-dvb