Date: Tue, 15 Jul 2008 16:14:01 -0700 From: Steve Kargl <sgk@troutmask.apl.washington.edu> To: Nate Lawson <nate@root.org> Cc: freebsd-acpi@freebsd.org Subject: Re: What version of acpi is supported? Message-ID: <20080715231401.GA83158@troutmask.apl.washington.edu> In-Reply-To: <487D2C87.3020209@root.org> References: <20080715222449.GA82931@troutmask.apl.washington.edu> <487D24EC.30900@root.org> <20080715223638.GB82931@troutmask.apl.washington.edu> <487D2C87.3020209@root.org>
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On Tue, Jul 15, 2008 at 04:02:31PM -0700, Nate Lawson wrote: > Steve Kargl wrote: > >On Tue, Jul 15, 2008 at 03:30:04PM -0700, Nate Lawson wrote: > >>Steve Kargl wrote: > >>>I have several ASUS KFSN4-DRE motherboards. The BIOS > >>>allows one to select acpi version 1, 2, or 3 where 3 > >>>is the defaults. Under heavy load and acpi v3, these > >>>motherboards shut themselves off. The boards appear > >>>to be stable if I select v1. So what, version of > >>>acpi does FreeBSD support? > >>> > >>Most of 1, a lot of 2, a little of 3. > > > >So does v2 or 3 must have a (low?) thermal protection > >mechanism that shuts down a system? And, can the > >threshold be tweaked? > > It doesn't work that way. When you specify a version to the BIOS, it > changes the AML (byte code) that it exports to the OS. Depending on > what we do (or don't do) with it, the BIOS is deciding at some point it > doesn't like the OS behavior and shuts down. It could be anything. > You'd have to look at the AML to figure out what we're poking or not > poking that the BIOS isn't happy with. I was afraid you (or someone) would say something like the above. I used acpidump to get an ASL file, but it was after I booted with v1. It appears that I have a lot to learn about the crypted ASL. > > Are you loading cpufreq? > No. -- Steve
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