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Date: Tue, 16 Oct 2007 18:33:42 -0400 From: Theodore Tso <tytso@....edu> To: Kristen Carlson Accardi <kristen.c.accardi@...el.com> Cc: Mark Lord <lkml@....ca>, pcihpd-discuss@...ts.sourceforge.net, Linux Kernel <linux-kernel@...r.kernel.org> Subject: Re: PCIe Hotplug: NFG unless I boot with card already inserted. On Tue, Oct 16, 2007 at 02:01:16PM -0700, Kristen Carlson Accardi wrote: > > > > I believe the code is leaning too heavily on the BIOS for stuff, > > and like lots of other parts of the kernel we'll need an alternate > > strategy for when things aren't "perfect". > > the pitfall for forcing pciehp when the BIOS hasn't provided OSC is that > you don't know for sure that you really have gained control of hot plug > operation properly. You can obviously try it, using the provide forcing > option as you have done, but the behavior is not predictable. The bigger concern is whether this likely to break things on systems that *do* correctly implement ACPI support for PCIe hotplug? - Ted - 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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