Date: Mon, 21 Sep 2009 17:42:17 +0200 From: Marius Strobl <marius@alchemy.franken.de> To: "David E. Cross" <crossd@cs.rpi.edu> Cc: freebsd-current@freebsd.org Subject: Re: psm0: unable to allocation IRQ (solution, well workaround) Message-ID: <20090921154217.GA6474@alchemy.franken.de> In-Reply-To: <1253500439.24101.8.camel@kagome> References: <1253500439.24101.8.camel@kagome>
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On Sun, Sep 20, 2009 at 10:33:59PM -0400, David E. Cross wrote: > I recently stumbled across this bug, and I have a solution to my > specific case. > > The problem is the following: > acpi_ibm0: <IBM ThinkPad ACPI Extras> irq 12 on acpi0 > > > _IF_, I put "device acpi_ibm" into the kernel config, disaster, psm0 is > unable to attach. > > If I "acpi_ibm_load="YES"" in /boot/loader.conf, I then get the > following: > acpi_ibm0: <IBM ThinkPad ACPI Extras> on acpi0 > > Note the lack of "irq12" > > Which then frees up: > > psm0: <PS/2 Mouse> irq 12 on atkbdc0 > > > Now, psm0 maps its IRQ as RF_SHAREABLE, so it _should_ work regardless, > right? > > I'd regard this as a fairly serious bug. > > I'm really at a loss of where to track it down more, looking at the > acpi_ibm code, its pretty opaque as to how resource allocations are done > and why this would ever map irq 12 (well, at least to me). > This was probably fixed by r197350 again. Marius
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