http://bugzilla.kernel.org/show_bug.cgi?id=13233





--- Comment #12 from ykzhao <yakui.z...@intel.com>  2009-05-12 03:35:51 ---
Hi, Dmitry
    Agree with what Shaohua said. When C1E feature is detected on AMD box, the
max c-state is limited to 1. And in such case the local apic can't work in
one-shot mode. Instead when the broadcast timer is used, the box can work well.

    And from the test in comment #10 we know that the local apic timer works in
periodic mode when "nohz=off highres=off". But when "nohz=off" is added, the
local apic timer still works in one-shot mode. And the box can't be booted.

Thanks.

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