Messages in this thread | | | Date | Sat, 4 Feb 2006 16:03:19 +0100 | From | Gerhard Schrenk <> | Subject | acpi_cpufreq broken after _PDC patch |
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Hi,
commit 05131ecc99ea9da7f45ba3058fe8a2c1d0ceeab8 breaks acpi_cpufreq for an Intel Centrino notebook with Pentium M 1.60GHz (it's a Medion MD 95600 (aka MSI S260) notebook).
|gps@medusa:~/scratch/kernel-tree$ git bisect bad |05131ecc99ea9da7f45ba3058fe8a2c1d0ceeab8 is first bad commit |diff-tree 05131ecc99ea9da7f45ba3058fe8a2c1d0ceeab8 (from d2149b542382bfc206cb28485108f6470c979566) |Author: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> |Date: Sun Oct 23 16:31:00 2005 -0400 | | [ACPI] Avoid BIOS inflicted crashes by evaluating _PDC only once | | Linux invokes the AML _PDC method (Processor Driver Capabilities) | to tell the BIOS what features it can handle. While the ACPI | spec says nothing about the OS invoking _PDC multiple times, | doing so with changing bits seems to hopelessly confuse the BIOS | on multiple platforms up to and including crashing the system. | | Factor out the _PDC invocation so Linux invokes it only once. | | http://bugzilla.kernel.org/show_bug.cgi?id=5483 | | Signed-off-by: Venkatesh Pallipadi <venkatesh.pallipadi@intel.com> | Signed-off-by: Len Brown <len.brown@intel.com>
The error message is
|gps@medusa:~$ sudo modprobe acpi_cpufreq |FATAL: Error inserting acpi_cpufreq |(/lib/modules/2.6.15-rc3-bisect1/kernel/arch/i386/kernel/cpu/cpufreq/acpi-cpufreq.ko): |No such device
Unfortunately
git revert 05131ecc99ea9da7f45ba3058fe8a2c1d0ceeab8
does not work without merge conflict on top of Linus' tree.
-- Gerhard - To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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