Fixed
Created: May 20, 2014
Updated: Dec 3, 2018
Resolved Date: May 25, 2014
Found In Version: 6.0
Fix Version: 6.0.0.7
Severity: Standard
Applicable for: Wind River Linux 6
Component/s: BSP - Async
HSW-ULT starts to use the DeRefOf operator with FieldUnit and BufferUnit, but ACPICA executor does not handle this case well, which results in the Fan/Thermal control broken.
If we do not fix it, this problem may bring all kinds of problems,
depends on where BIOS uses this AML code. On HSW-ULT, it results in that the
Fan is not turned on/off successfully. This problem exists in all kernel versions earlier than 3.12.
3 patches has already in 3.12.
63660e05ec719613b518547b40a1c501c10f0bc4
a50abf4842dd7d603a2ad6dcc7f1467fd2a66f03
4be4be8fee2ee99a52f94f90d03d2f287ee1db86
