Jeff Garzik wrote:
Rich West wrote:
I was only curious as to what turning off power management support
would buy with regard to the sata timeout issue.
ACPI is not only power management. It is all the information your
hardware conveys to your OS, about the setup and workings of your hardware.
Without ACPI, non-PM things like SMP, laptop dock/undock, and many other
gadgets fail to function (or are configured sub-optimally).
ACPI sets up interrupt routing, and Linux history is _loaded_ with
_years_ of problem reports that appear as timeouts, only to be resolved
as ACPI interrupt bugs (aka BIOS bugs, since ACPI tables come from BIOS).
Also, please give a shot at the sacred "irqpoll".
--
tejun
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