https://bugzilla.kernel.org/show_bug.cgi?id=206553
--- Comment #14 from Jan Engelhardt (ej+...@inai.de) --- Created attachment 287629 --> https://bugzilla.kernel.org/attachment.cgi?id=287629&action=edit Alternate patch to comment 9. Diagnostic patch. This patch kills off the unbounded wait on acpi_gbl_global_lock_semaphore. Needless to say unbounded waits are kinda bad. It is here replaced with a 44ms wait (just something that will stand out in logs). Observations from running this patch on the hardware: 1. ACPI_ACQUIRE_GLOBAL_LOCK never succeeds in acquiring acpi_gbl_FACS. Looking at what that macro does, this may turn out to be a hardware bug that can only be worked around. Upgrading the firmware is not an option -- there is no upgrade to be found on the manufacturer's website. 2. (as before) acpi_gbl_global_lock_semaphore never gets posted either, so acpi_ex_system_wait_semaphore will never complete in a stock kernel. Unlike comment 9, this patch does not skip nearly as much locking code, so the dmesg should be better. -- You are receiving this mail because: You are watching the assignee of the bug. _______________________________________________ acpi-bugzilla mailing list acpi-bugzilla@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/acpi-bugzilla
