Messages in this thread | | | Date | Sat, 25 Oct 2008 11:10:43 -0600 | From | Robert Hancock <> | Subject | Re: [Re: Linux 2.6.28-rc1] ACPI Warning (nspredef-0852)[...] |
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Henrique de Moraes Holschuh wrote: > On Sat, 25 Oct 2008, Rafael J. Wysocki wrote: >> On Saturday, 25 of October 2008, Maciej Rutecki wrote: >>> During suspend to ram I have this message: >>> >>> ACPI Warning (nspredef-0852): \_WAK: Return type mismatch - found >>> Integer, expected Package [20080926] >>> >>> s2ram seems works OK >>> >>> dmesg, acpidump: >>> http://unixy.pl/maciek/download/kernel/2.6.28-rc1_wak/ >> IMO it's yet another incarnation of >> http://bugzilla.kernel.org/show_bug.cgi?id=11822 > > If this is an outright violation of the ACPI spec, let me know (and if > possible, please tell me the spec page). This is the kind of thing I expect > it would be a no-brainer to get Lenovo to fix with a BIOS update.
I don't think this is the same issue, but in both cases it looks like the BIOS AML code is wrong (just judging from the output, haven't looked at the dump yet). _WAK is supposed to return a package of 2 DWORD values, a bit field of conditions that occurred during sleep, and the effective S-state the system actually entered (section 7.3.7 of the ACPI 3.0 spec). Presumably the BIOS is returning a single integer.
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