RE: [GIT PULL] ACPI fix for v4.18-rc7

[Schmauss, Erik]

> -----Original Message-----
> From: linux-acpi-owner@xxxxxxxxxxxxxxx [mailto:linux-acpi-
> owner@xxxxxxxxxxxxxxx] On Behalf Of Linus Torvalds
> Sent: Friday, July 27, 2018 11:38 AM
> To: Rafael J. Wysocki <rafael@xxxxxxxxxx>
> Cc: Linux ACPI <linux-acpi@xxxxxxxxxxxxxxx>; Linux Kernel Mailing List <linux-
> kernel@xxxxxxxxxxxxxxx>
> Subject: Re: [GIT PULL] ACPI fix for v4.18-rc7
> 
> My XPS13 laptop is unhappy with something recent.
> 
> As of yesterday, I get this at bootup:
> 
>   ACPI: Added _OSI(Module Device)
>   ACPI: Added _OSI(Processor Device)
>   ACPI: Added _OSI(3.0 _SCP Extensions)
>   ACPI: Added _OSI(Processor Aggregator Device)
>   ACPI: Added _OSI(Linux-Dell-Video)
>   ACPI Error: Result stack is empty! State=(____ptrval____)
> (20180531/dswstate-65)
>   ACPI Error: AE_AML_NO_RETURN_VALUE, Missing or null operand
> (20180531/dsutils-612)
>   ACPI Error: AE_AML_NO_RETURN_VALUE, While creating Arg 0
> (20180531/dsutils-727)
>   ACPI Error: Result stack is empty! State=(____ptrval____)
> (20180531/dswstate-65)
>   ACPI Error: AE_AML_NO_RETURN_VALUE, Missing or null operand
> (20180531/dsutils-612)
>   ACPI Error: AE_AML_NO_RETURN_VALUE, While creating Arg 0
> (20180531/dsutils-727)
>   ACPI Error: Result stack is empty! State=(____ptrval____)
> (20180531/dswstate-65)
>   ACPI Error: AE_AML_NO_RETURN_VALUE, Missing or null operand
> (20180531/dsutils-612)
>   ACPI Error: AE_AML_NO_RETURN_VALUE, While creating Arg 0
> (20180531/dsutils-727)
>   ACPI Error: Result stack is empty! State=(____ptrval____)
> (20180531/dswstate-65)
>   ACPI Error: AE_AML_NO_RETURN_VALUE, Missing or null operand
> (20180531/dsutils-612)
>   ACPI Error: AE_AML_NO_RETURN_VALUE, While creating Arg 0
> (20180531/dsutils-727)
>   ACPI Error: Result stack is empty! State=(____ptrval____)
> (20180531/dswstate-65)
>   ACPI Error: AE_AML_NO_RETURN_VALUE, Missing or null operand
> (20180531/dsutils-612)
>   ACPI Error: AE_AML_NO_RETURN_VALUE, While creating Arg 0
> (20180531/dsutils-727)
>   ACPI Error: Result stack is empty! State=(____ptrval____)
> (20180531/dswstate-65)
>   ACPI Error: AE_AML_NO_RETURN_VALUE, Missing or null operand
> (20180531/dsutils-612)
>   ACPI Error: AE_AML_NO_RETURN_VALUE, While creating Arg 0
> (20180531/dsutils-727)
>   ACPI Error: Result stack is empty! State=(____ptrval____)
> (20180531/dswstate-65)
>   ACPI Error: AE_AML_NO_RETURN_VALUE, Missing or null operand
> (20180531/dsutils-612)
>   ACPI Error: AE_AML_NO_RETURN_VALUE, While creating Arg 0
> (20180531/dsutils-727)
>   ACPI Error: Result stack is empty! State=(____ptrval____)
> (20180531/dswstate-65)
>   ACPI Error: AE_AML_NO_RETURN_VALUE, Missing or null operand
> (20180531/dsutils-612)
>   ACPI Error: AE_AML_NO_RETURN_VALUE, While creating Arg 0
> (20180531/dsutils-727)
>   ACPI Error: Result stack is empty! State=(____ptrval____)
> (20180531/dswstate-65)
>   ACPI Error: AE_AML_NO_RETURN_VALUE, Missing or null operand
> (20180531/dsutils-612)
>   ACPI Error: AE_AML_NO_RETURN_VALUE, While creating Arg 0
> (20180531/dsutils-727)
>   ACPI Error: Result stack is empty! State=(____ptrval____)
> (20180531/dswstate-65)
>   ACPI Error: AE_AML_NO_RETURN_VALUE, Missing or null operand
> (20180531/dsutils-612)
>   ACPI Error: AE_AML_NO_RETURN_VALUE, While creating Arg 0
> (20180531/dsutils-727)
>   ACPI Error: Result stack is empty! State=(____ptrval____)
> (20180531/dswstate-65)
>   ACPI Error: AE_AML_NO_RETURN_VALUE, Missing or null operand
> (20180531/dsutils-612)
>   ACPI Error: AE_AML_NO_RETURN_VALUE, While creating Arg 0
> (20180531/dsutils-727)
>   ACPI: 9 ACPI AML tables successfully acquired and loaded
> 
> It does *not* happen in
> 
>     Linux version 4.18.0-rc6-00110-g6e77b267723c
> 
> but it *does* happen in
> 
>     Linux version 4.18.0-rc6-00152-gcd3f77d74ac3
> 
> and while I didn't bisect it, I'm assuming it's due to 73c2a01c52b6
> ("ACPICA: AML Parser: ignore dispatcher error status during table
> load")
> 
> Ideas?

Sorry about the breakage. I found the cause this failure and I'm working on a fix right now.

Erik

> 
> Note only the errors are new. On older kernels, I just get:
> 
>   ACPI: Added _OSI(Module Device)
>   ACPI: Added _OSI(Processor Device)
>   ACPI: Added _OSI(3.0 _SCP Extensions)
>   ACPI: Added _OSI(Processor Aggregator Device)
>   ACPI: Added _OSI(Linux-Dell-Video)
>   ACPI: 9 ACPI AML tables successfully acquired and loaded
> 
> without the big slew of errors.
> 
>           Linus
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