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  1. Bug #1489622
  2. Comment #15

Comment 15 for bug 1489622

Revision history for this message
Jeremy Sequoia (jeremyhu) wrote : Re: 15.10 20150826 snapshot -- MacBookPro3,1 has high load (and temperature) despite low CPU and low IO

Comparing the commit log for driver/acpi changes between 3.17 and 3.18-rc1, I notice this commit standing out as the most likely related commit:

commit 9faf6136ff4647452580b019f4b16f8c5082e589
Author: Matthew Garrett <email address hidden>
Date: Sat Sep 20 13:19:46 2014 +0200

    ACPI / SBS: Disable smart battery manager on Apple

    Touching the smart battery manager at all on Apple hardware appears to
    make it unhappy - unplugging the AC adapter triggers accesses that hang
    the controller for several minutes. Quirk it out via DMI in order to
    avoid this. Compensate by changing battery presence if we fail to
    communicate with the battery.

    Signed-off-by: Matthew Garrett <email address hidden>
    Signed-off-by: Andreas Noever <email address hidden>
    Signed-off-by: Rafael J. Wysocki <email address hidden>