Subject : ACPI exception with 2.6.29-rc6 Submitter : Heinz Diehl <htd@fancy-poultry.org> Date : 2009-02-23 16:46 References : http://marc.info/?l=linux-kernel&m=123540758700861&w=4 This entry is being used for tracking a regression from 2.6.28. Please don't close it until the problem is fixed in the mainline.
Created attachment 20350 [details] Here comes the output of "acpidump"
Created attachment 20368 [details] revert offending patch from 2.6.29-rc6 Thanks for the acpidump. The DSDT does indeed defines an opregion covering the ELCR: OperationRegion (ELCR, SystemIO, 0x04D0, 0x02) Field (ELCR, ByteAcc, NoLock, Preserve) { ELC1, 8, ELC2, 8 } However, no AML in the system actually references this opregion, so the Linux warning is a false positive. Bob Moore pointed out that if we checked our illegal IO port address list at run-time rather than init-time, then we'd not have any warnings on this box; and he volunteered to put that check into upstream ACPICA. So I'll delete the init-time check from Linux (we've lived without it from pre-history until 2.6.29-rc) and we'll test the run-time ACPICA address validation when it becomes available.
On Wednesday 04 March 2009, Zhang Rui wrote: > On Wed, 2009-03-04 at 03:22 +0800, Rafael J. Wysocki wrote: > > > Bug-Entry : http://bugzilla.kernel.org/show_bug.cgi?id=12758 > > Subject : ACPI exception with 2.6.29-rc6 > > Submitter : Heinz Diehl <htd@fancy-poultry.org> > > Date : 2009-02-23 16:46 (9 days old) > > References : http://marc.info/?l=linux-kernel&m=123540758700861&w=4 > > > Handled by: Len Brown <len.brown@intel.com> > Patch-available: > http://bugzilla.kernel.org/attachment.cgi?id=20368&action=view Handled-By : Len Brown <lenb@kernel.org> Patch : http://bugzilla.kernel.org/attachment.cgi?id=20368&action=view
shipped upstream on top of 2.6.29-rc8-git2 closed.