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    SubjectRe: Common boot/shutdown issues with the latest 2.6.37 (Mostly Asus laptops)
    On 31.01.2011 11:50, Rafael J. Wysocki wrote:
    > On Monday, January 31, 2011, Ozan Çağlayan wrote:
    >> On 31.01.2011 00:48, Rafael J. Wysocki wrote:
    >>
    >>> Does booting with "nolapic" help on all of the affected systems?
    >>>
    >>> Also, does disabling the CPUidle during boot help?
    >>>
    >>> Finally, is the problem reproducible with CONFIG_NO_HZ unset?
    >>
    >> Well on two machines, nolapic cures the boot hang and on one machine it
    >> cures the random shutdown hangs.
    >>
    >> I'll compile a kernel with CONFIG_NO_HZ to see what happens but how do I
    >> disable cpuidle during boot? I've checked the kernel-parameters.txt but
    >> there's no cpuidle related boot parameter there.
    >
    > Booting with intel_idle.max_cstate=0 should do the trick.

    Okay but on Asus X61S idle fallbacks to cpuidle:

    intel_idle: MWAIT substates: 0x3122220
    intel_idle: does not run on family 6 model 23

    so forcing max_cstate to 0 will turn off the cpuidle on those machines too?


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