The explanation seems pretty simple. That commit changes the ACPI implementation of the AML sleep operation to use uninterruptible sleep instead of interruptible sleep. Tasks in uninterruptible sleep contribute to load, while those in interruptible sleep do not. So there's no real change in your system load, just a change in how a specific instance of a task sleeping will be accounted for in the load calculation.
Since this code is only executed in response to an AML operation that implies that something in your BIOS is doing a lot of sleeps. If you attach a copy of your ACPI tables we can take a peek and see if we can find out more about the problem. Please run 'sudo acpidump > acpi- tables.txt' and attach acpi-tables.txt to this bug. Thanks! -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/1472293 Title: load >= 1 while idle for no obvious reason with ACPI To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/linux/+bug/1472293/+subscriptions -- ubuntu-bugs mailing list [email protected] https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs
