http://bugzilla.kernel.org/show_bug.cgi?id=10482


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------- Comment #1 from [EMAIL PROTECTED]  2008-04-19 08:14 -------

Rafael,

Any clues about this? This hang looks like happening while secondary CPUs are
made online during resume.

We go through CPU_ONLINE notifier function acpi_cpu_soft_notify() ->
acpi_processor_cst_has_changed() -> cpuidle_pause_and_lock() ->
cpuidle_uninstall_idle_handler() -> which calls smp_call_function().

Looks like secondary CPUs do not like smp_call_function at this point. I am
digging through the resume code, but thought you may have a quicker answer.


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