[linux-dvb] SAA7146 DMA buffer overflow
mail at ingo-schneider.de
Tue Feb 21 21:22:22 CET 2006
Johannes Stezenbach wrote:
>>If this is really a IRQ latency problem, how does it come the timer
>>keeps counting jiffies while the SAA7146 cannot get its interrupt handled ?
>Are you sure the timer irq is serviced? IIRC the x86 timer irq
>handler can detect lost irqs and correctly update jiffies later.
Oh, I forgot to say: I compared IRQ0 count to system time, and nothing
got lost there.
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