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SubjectRe: acpi_ex_system_memory_space_handler oops
On (08/27/09 16:44), Lin Ming wrote:
> > > > [ 0.178628] ACPI: EC: Look up EC in DSDT
> > > > [ 0.196480] ACPI: Interpreter enabled
> > > > [ 0.196575] ACPI: (supports S0 S1 S3 S4 S5)
> > > > [ 0.197184] ACPI: Using IOAPIC for interrupt routing
> > > > [ 0.197352] PCI: MCFG configuration 0: base e0000000 segment 0 buses 0 - 255
> > > > [ 0.203511] ACPI Error (dswload-0790): [PCFG] Namespace lookup failure, AE_ALREADY_EXISTS
> > > > [ 0.203738] ACPI Exception: AE_ALREADY_EXISTS, During name lookup/catalog 20090521 psloop-227
> > > > [ 0.203964] ACPI Error (psparse-0537): Method parse/execution failed [\_SB_.RBPE] (Node f7017678), AE_ALREADY_EXISTS
> > > > [ 0.204256] ACPI: Marking method RBPE as Serialized because of AE_ALREADY_EXISTS error
> > > > [ 0.204510] ACPI Error (psparse-0537): Method parse/execution failed [\_GPE._L01] (Node f701d198), AE_ALREADY_EXISTS
> > > > [ 0.204803] ACPI: Marking method _L01 as Serialized because of AE_ALREADY_EXISTS error
> > > > [ 0.205063] ACPI Exception: AE_ALREADY_EXISTS, while evaluating GPE method [_L01] 20090521 evgpe-568
> > >
> > > Do you mean rc7-git5 sometime boot fails even with the patch applied?
> > >
> > No. Patched kernel boots ok. Even successfully booted kernel sometimes has the given lines in dmesg.
> > (I'll watch more.)
>

Yes, looks like:

> So the patch only fixes the oops,
confirmed;

> we also need to fix the AE_ALREADY_EXISTS error.
>
AE_ALREADY_EXISTS fix not confirmed.
(AE_ALREADY_EXISTS errors are quite rare.)


Sergey
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