-------- Original-Nachricht -------- Datum: Wed, 28 Jun 2006 09:02:48 +0800 Von: Shaohua Li <shaohua.li@xxxxxxxxx> An: castet.matthieu@xxxxxxx Betreff: Re: [patch 11/18] pnpacpi: reject ACPI_PRODUCER resources > On Tue, 2006-06-27 at 14:02 +0200, castet.matthieu@xxxxxxx wrote: > > Selon Shaohua Li <shaohua.li@xxxxxxxxx>: > > > > > > > > http://www.kernel.org/git/?p=linux/kernel/git/torvalds/linux-2.6.git;a=commit;h=c4bb6f5ad968540d7f9619565bacd18d7419b85f > > > Thanks and sorry I didn't find the issue before. We'd better blacklist > > > root bridge. I saw at lest one BIOS (IA64 box) didn't assign correct > > > producer/consumer flag to root bridge resources. Blacklist it is much > > > safer. > > > > Is only PNP0A03 is producer type in __all__ ACPI possible devices ? > > If not we will have the same problem with others devices... > > > > I don't think blacklist is the solution : pnpacpi should be able to > handle all > > ressources types : we should complete the implementation instead of > blacklist > > devices our implementation doesn't support. > > > > If there are broken ACPI bios, there should be firmware update, a > patched dsdt > > or a quirk, but no "quirk and no generic solution". > >>From my understanding, if the device is really a PNP device its resource > should not be producer. > Or could we take this way, merge both patches (both patches are good to > me), which should be safer. Anyway, it doesn't make sense to export root > bridge to pnp layer to me. > > Thanks, > Shaohua I tested the patch without blacklisting the PNP resource at the same time under 2.6.17-rc6-mm*, and did not find any regression. And I am sure there is a solution also for IA64 architectures without going the blacklist path which sounds a bit strange after having done such a big effort of real good work. Unfortunately I do not own an IA64 architecture, so I neither cannot test nor understand Shaohua´s criticism on that. Under latest mm-patches (mm1, mm2, mm3 for official release of 2.6.17) it is at least impossible for me to give any positive feedback, as all three mm-versions are simply unusable. I will feature this in another mail to Andrew. Cheers Uwe -- Echte DSL-Flatrate dauerhaft für 0,- Euro*! "Feel free" mit GMX DSL! http://www.gmx.net/de/go/dsl - 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
