Norman Lyon [EMAIL PROTECTED] wrote: > I'm thinking that the problems I'm having with my playback skipping a little > (maybe a quarter of a second) every few minutes may have something to do with > lack of ACPI/how my IRQs are used. It looks like EVERYTHING except the > onboard > IDE shares IRQs, 3, 5, & 11. That looks to be causing a lot of conflicts > between my audio cards, capture card, video card, and extra IDE card. > > Can anyone verify whether or not they've either been able to track down > problems > to this, or at least had a high level of suspicion that this may have caused <...>
You may want to try shuffling your PCI cards around to try to find a better sharing of IRQs. That really helped me on a system with ACPI and hyperthreading, running an SMP kernel. I think it sometimes matters much more *which* devices are sharing IRQs, than the fact that the IRQs are shared. Eg, if you have 2 devices which both are well behaved, its not really that bad to have them share an interrupt. But if you have a driver for "slow" hardware (where it needs to read/write registers with lots of delays just to see if the card sent an interrupt), or a buggy driver, it can adversely affect the other driver that it is sharing an interrupt with. For example, I have a PCI wireless card where I'm using a Windows driver via ndiswrapper. Every 5 seconds, that driver does *something* which resets the card. Until I moved it to a slot where it got its own irq, it would hang the system for a few hundred milliseconds every 5 seconds. Now that it has its own IRQ, it just hangs the wireless connection. Needless to say, I'm getting rid of this card.. Drew
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