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Open Source and information security mailing list archives
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Date: Sun, 13 Apr 2008 11:45:31 +0900 From: Tejun Heo <htejun@...il.com> To: Jeff Garzik <jeff@...zik.org> CC: Rich West <Rich.West@...mo.com>, Wander Winkelhorst <w.winkelhorst@...il.com>, linux-kernel@...r.kernel.org, Linux IDE mailing list <linux-ide@...r.kernel.org> Subject: Re: sata_via 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 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@...r.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/
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