Date: Sun, 10 Oct 2004 10:23:04 -0700 From: Nate Lawson <nate@root.org> To: Mark Murray <markm@FreeBSD.ORG> Cc: cvs-all@FreeBSD.ORG Subject: Re: cvs commit: src/sys/dev/acpica acpi_quirks acpi_timer.c acpivar.h Message-ID: <41696FF8.7060209@root.org> In-Reply-To: <200410090828.i998SP5B070053@grimreaper.grondar.org> References: <200410090828.i998SP5B070053@grimreaper.grondar.org>
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Mark Murray wrote: > Nate Lawson writes: > >>I've been analyzing how Windows and Linux handle IRQ routing. There are >>some interesting parts that I've mentioned before but thought I'd >>summarize publically: >> >>* Some systems, notably laptops, require all PCI irqs to be routed to >>the SCI (irq 9 almost always). Sony VAIOs are one example. >> >>* Both $PIR and _PRT are used for ACPI irq routing. It merges them via >>some unknown algorithm (prefer $PIR?) > > > My Toshiba Libretto 110CT panics at boot because the NPX hasn't got an > irq assigned. If I turn off ACPI, it get a hard hang in isa_probe_devices(). > > Any ideas? Not off-hand. A sysresource problem? Boot acpi with debug.acpi.disabled="sysresource" -Nate
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