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author | Alexey Starikovskiy <alexey.y.starikovskiy@linux.intel.com> | 2007-02-15 16:12:23 -0500 |
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committer | Len Brown <len.brown@intel.com> | 2007-02-15 16:13:16 -0500 |
commit | c0d127b56937c3e72c2b1819161d2f6718eee877 (patch) | |
tree | 40ac0fd3a628685ce25d11d1b00360344279ec5b /Documentation/nfsroot.txt | |
parent | 724339d76d9407cd1a8ad32a9c1fdf64840cc51b (diff) |
ACPICA: fix AML mutex re-entrancy
ACPI AML supports "serialized" methods which are protected
by an implicit mutex. The mutex is re-entrant for that AML thread
to allow recursion.
However, Linux implements notify() by creating a new AML thread.
So for systems where notify() re-enters a serialized method,
deadlock results.
The fix is to use the Linux thread_id as the key to allowing
re-entrancy, not the AML thread pointer.
http://bugzilla.kernel.org/show_bug.cgi?id=5534
Signed-off-by: Alexey Starikovskiy <alexey.y.starikovskiy@linux.intel.com>
Signed-off-by: Len Brown <len.brown@intel.com>
Diffstat (limited to 'Documentation/nfsroot.txt')
0 files changed, 0 insertions, 0 deletions