[linux-dvb] SAA7146 DMA buffer overflow - delayed interrupts ?

Jon Burgess jburgess at uklinux.net
Sat Feb 25 18:54:23 CET 2006


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.

	Jon




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