DragonFly BSD
DragonFly bugs List (threaded) for 2009-11
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Re: ACPI C-states not working properly


From: Matthew Dillon <dillon@xxxxxxxxxxxxxxxxxxxx>
Date: Fri, 13 Nov 2009 18:28:42 -0800 (PST)

:Hi,
:
:after the recent ACPI update, setting hw.acpi.cpu.cx_lowest=C3 caused
:clock interrupt issues on my ThinkPad X60.
:This is because the special handling that sets the clock interrupt
:source to i8254 when C3 is enabled was no longer working. The type
:field of struct acpi_cx in acpi_cpu_cstate.c was overwritten due to a
:typo. The patch below fixes the issue.
:
:Cheers,
:Johannes
:
:-	acpi_PkgGas(sc->cpu_dev, pkg, 0, &cx_ptr->type, &cx_ptr->rid, &cx_ptr->p_lvlx,
:+	acpi_PkgGas(sc->cpu_dev, pkg, 0, &cx_ptr->res_type, &cx_ptr->rid, &cx_ptr->p_lvlx,

    Nice catch.  Committed!

					-Matt
					Matthew Dillon 
					<dillon@backplane.com>



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