http://bugzilla.kernel.org/show_bug.cgi?id=8171





------- Comment #36 from [EMAIL PROTECTED]  2008-01-11 07:40 -------

Not sure, depends on when the changes below were integrated into Linux.

Problem was introduced here:

12 September 2006. Summary of changes for version 20060912:
Enhanced the implementation of the "serialized mode" of the interpreter 
(enabled via the AcpiGbl_AllMethodsSerialized flag.) When this mode is 
specified, instead of creating a serialization semaphore per control method, 
the interpreter lock is simply no longer released before a blocking 
operation during control method execution. This effectively makes the AML 
Interpreter single-threaded. The overhead of a semaphore per-method is 
eliminated.

Problem was solved here:

19 September 2007. Summary of changes for version 20070919:
Fixed a problem where the use of the AcpiGbl_AllMethodsSerialized flag 
(acpi_serialized option on Linux) could cause some systems to hang during 
initialization. (Bob Moore) BZ 8171


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