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    SubjectCPU_IDLE prevents resuming from STR [was: Re: 2.6.21-rc6-mm1]
    On Sun, Apr 08, 2007 at 02:35:59PM -0700, Andrew Morton wrote:
    ...
    > git-acpi.patch

    after bisecting I can finally say what breaks resume from STR here:

    tadaaaaa: CPU_IDLE.
    I first spotted the git-acpi.patch then reapplied it and disabled
    CPU_IDLE, now my laptop resumes.

    Any useful information I should add?

    $ cat /sys/devices/system/cpu/cpuidle/*
    acpi_idle
    no governors
    acpi_idle
    no governor

    $ cat /proc/cpuinfo
    processor : 0
    vendor_id : GenuineIntel
    cpu family : 6
    model : 15
    model name : Intel(R) Core(TM)2 CPU T5600 @ 1.83GHz
    stepping : 6
    cpu MHz : 1000.000
    cache size : 2048 KB
    physical id : 0
    siblings : 2
    core id : 0
    cpu cores : 2
    fdiv_bug : no
    hlt_bug : no
    f00f_bug : no
    coma_bug : no
    fpu : yes
    fpu_exception : yes
    cpuid level : 10
    wp : yes
    flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe nx lm constant_tsc pni monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr lahf_lm
    bogomips : 3671.24
    clflush size : 64

    processor : 1
    vendor_id : GenuineIntel
    cpu family : 6
    model : 15
    model name : Intel(R) Core(TM)2 CPU T5600 @ 1.83GHz
    stepping : 6
    cpu MHz : 1000.000
    cache size : 2048 KB
    physical id : 0
    siblings : 2
    core id : 1
    cpu cores : 2
    fdiv_bug : no
    hlt_bug : no
    f00f_bug : no
    coma_bug : no
    fpu : yes
    fpu_exception : yes
    cpuid level : 10
    wp : yes
    flags : fpu vme de pse tsc msr pae mce cx8 apic sep mtrr pge mca cmov pat pse36 clflush dts acpi mmx fxsr sse sse2 ss ht tm pbe nx lm constant_tsc pni monitor ds_cpl vmx est tm2 ssse3 cx16 xtpr lahf_lm
    bogomips : 15805.85
    clflush size : 64

    --
    mattia
    :wq!
    -
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