Messages in this thread | | | Subject | RE: Linux 2.6.27-rc3 | Date | Wed, 13 Aug 2008 15:23:09 -0500 | From | "Langsdorf, Mark" <> |
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> On Wed, Aug 13, 2008 at 4:33 AM, Linus Torvalds > <torvalds@linux-foundation.org> wrote: > > > > Things really _have_ calmed down, and hopefully we've also > resolved a lot > > of the regressions in -rc3. > > I found a new one in -rc3 vs. -rc2. > Only one of my cpus seems to powered down by cpufreq, because the > topology gets filled out wrong: > > correct with -rc2: > #grep . /sys/devices/system/cpu/cpu*/cpufreq/affected_cpus > /sys/devices/system/cpu/cpu0/cpufreq/affected_cpus:0 1 > /sys/devices/system/cpu/cpu1/cpufreq/affected_cpus:0 1 > /sys/devices/system/cpu/cpu2/cpufreq/affected_cpus:2 3 > /sys/devices/system/cpu/cpu3/cpufreq/affected_cpus:2 3 > (The system has 2 dual core Opterons) > > wrong with -rc3: > #grep . /sys/devices/system/cpu/cpu*/cpufreq/affected_cpus > /sys/devices/system/cpu/cpu0/cpufreq/affected_cpus:0 1 > /sys/devices/system/cpu/cpu1/cpufreq/affected_cpus:0 1 > /sys/devices/system/cpu/cpu2/cpufreq/affected_cpus:0 1 > /sys/devices/system/cpu/cpu3/cpufreq/affected_cpus:0 1 > > I bisected this bug down to these commits: > > Mark Langsdorf (2): > > [CPUFREQ][1/2] whitespace fix for powernow-k8 > > [CPUFREQ][2/2] preregister support for powernow-k8
Well, that patch is likely going to get reverted because it's causing a crash on Rafael's test box.
But before that happens, could you send me the disassembled dump of your ACPI objects? Iti's possible the code is wrong, but it's also possible that your BIOS is passing a broken _PSD.
-Mark Langsdorf Operating System Research Center AMD
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