On Tue, 2004-09-28 at 16:11, Mark Knecht wrote: > Lee Revell wrote: > > I get no xruns at 32 (!) frames using 2.6 with the VP patches, > > and my soundcard shares an interrupt with USB: > > > > (Non-argumentive if it's unclear) Please stick a USB mouse on the USB > port that is shared and wiggle it madly while doing some of this. Can > you create an xrun? > No, this does not cause an xrun, because even though the USB interrupt handler interrupts the soundcard irq (and vice versa), it does not run for a significant fraction of the period time. Of course it's best to have the soundcard on an interrupt that is not shared. But whether that interrupt is #5 or #10 does not matter. > BTW - PIC or APIC interrupts? PIC (as in I only have irqs 0-15), but APIC works the same way. Lee