I have a laptop with a broken fan and it would constantly shut down under load. In principle passive thermal zone throttling was supposed to prevent that by slowing down the CPU, but this didn't work. This patchkit makes it work on my system. It turned out to be a combination of problems: the EC driver talking to the embedded controller on my system would frequently get out of step, which resulted in missing temperature events. While not completely cured it's much better now with some replies. The other more serious problem was that the throttling code never really worked on multi-core systems: it only lowers the frequency of a single CPU, that gets the event, but the other threads/cores still keep the frequency up. Also worse throttling would never be invoked before the lowest frequency is reached. The first patch is merely a cleanup, the other patches fix these problems. Now that the kernel is fixed I can send the laptop in for repair. -Andi -- To unsubscribe from this list: send the line "unsubscribe linux-acpi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
