Date: Wed, 19 Aug 2009 02:35:34 -0400 From: Zaphod Beeblebrox <zbeeble@gmail.com> To: "Daniel O'Connor" <doconnor@gsoft.com.au> Cc: freebsd-hackers@freebsd.org Subject: Re: PCI IRQ latency Message-ID: <5f67a8c40908182335y59679131u373e8a3b27856909@mail.gmail.com> In-Reply-To: <200908191253.27951.doconnor@gsoft.com.au> References: <200908191253.27951.doconnor@gsoft.com.au>
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On Tue, Aug 18, 2009 at 11:23 PM, Daniel O'Connor <doconnor@gsoft.com.au>wrote: > Unfortunately it seems that _something_ blocks interrupts for >4 > milliseconds, however I have no real idea how to go about finding what > it is.. Does anyone have any suggestions? (apart from get a new DAQ > card, I know this one already :) This is a huge shot-in-the-dark, but could this be something like ACPI or some other motherboard legacy cpu-using evil? Would it be possible to test on something opposite-ish of what you're using (ie: amd vs. intel) just to cycle out all the potential goo?
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