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    Subjectcpu hotplug broken in linux-next
    If I boot with: maxcpus=2 possible_cpus=4

    I get

    # grep . /sys/devices/system/cpu/cpu[0-9]*/online'
    /sys/devices/system/cpu/cpu1/online:1
    /sys/devices/system/cpu/cpu2/online:1
    /sys/devices/system/cpu/cpu3/online:1

    When 2 and 3 *should* be offline. I also get -EINVAL if I try to
    re-offline them in this state. 2 and 3 don't show up in /proc/cpuinfo,
    so sysfs just looks broken here.

    I'm bisecting it at the moment, but won't get to finish until tomorrow.
    Just thought I'd report early and often. :)


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