Hi! On 22:05 Sat 21 Feb , Denis Borisevich wrote: > Hi! > > 2009/2/21 Michael Blizek <michi1@xxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxxx>: > > Hi! > > > > On 18:22 Fri 20 Feb , Denis Borisevich wrote: > >> Hi, > >> I have a problem with ISR for shared IRQ in my module. It's being > >> called for 15-20 times per second and never stops. The other driver > >> that shares this interrupt is ahci. What can cause this problem? > > > > This might be perfectly normal. Basically if an interrupt is shared, all ISR > > which have registered for this interrupt are called (until one ISR claims it?) > > > > Yes, it is normal that my ISR is called for the shared interrupt which was > issued by another device on this shared line. But it seems that the ahci driver > doesn't handle it too. And that is not normal. I think the problem is in the way > I reject the interrupt in my ISR if it is not "mine" (I just return > IRQ_NONE), because when I unload my > module this "interrupt storm" stops (I think that ahci driver finally > handles that > interrupt). This sounds interesting. However IRQ_NONE seems right: http://lxr.linux.no/linux+v2.6.28.6/drivers/net/e1000/e1000_main.c#L3728 Is there any chance to see your code? -Michi -- programing a layer 3+4 network protocol for mesh networks see http://michaelblizek.twilightparadox.com -- To unsubscribe from this list: send an email with "unsubscribe kernelnewbies" to ecartis@xxxxxxxxxxxx Please read the FAQ at http://kernelnewbies.org/FAQ
