On Jan 14, 2008 12:30 AM, Bryan Donlan <[EMAIL PROTECTED]> wrote: > > On Jan 13, 2008 10:57 PM, Lee Revell <[EMAIL PROTECTED]> wrote: > > On Jan 11, 2008 11:57 AM, Jan Marek <[EMAIL PROTECTED]> wrote: > > Why is a shared IRQ a problem for you? IRQ handlers are supposed to > > be fast enough that disabling an IRQ line for the duration of the > > handler execution should not be a problem even if the IRQ is shared. > > VGA interrupts in particular should only fire once per frame and only > > need to flip some bits to wake up any processes waiting on vsync. > > > > If you have issues with a shared VGA interrupt then the bug is that > > some IRQ handler runs for too long and should be deferring work to a > > bottom half. > > Jan is apparently using the nvidia binary driver, so I doubt it will > be possible to fix the bug that prevents it from sharing IRQs. >
Ah, of course, stupid me. Thought I was on linux-audio-user where this is a FAQ (for completely different reasons) and not LKML. But this is strange - I'm sure I've seen people using that driver with a shared IRQ before. Jan, maybe you can blacklist ohci-hcd as a workaround? In any case let's take this discussion off LKML so as not to spam the list with binary only driver issues. Lee -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to [EMAIL PROTECTED] More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
