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Re: Kernel Freeze with American Megatrends BIOS

From Peter Wu <peter@lekensteyn.nl>
Newsgroups linux.kernel
Subject Re: Kernel Freeze with American Megatrends BIOS
Date 2016-08-31 13:50 +0200
Message-ID <sccbL-1TJ-9@gated-at.bofh.it> (permalink)
References <sbxii-10O-19@gated-at.bofh.it> <sbxii-10O-17@gated-at.bofh.it> <sbXmp-Og-1@gated-at.bofh.it> <scbSr-1Nd-37@gated-at.bofh.it>
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On Wed, Aug 31, 2016 at 01:27:36PM +0200, Roland Singer wrote:
> Am 30.08.2016 um 21:53 schrieb Peter Wu:
> > On Mon, Aug 29, 2016 at 11:02:10AM -0500, Bjorn Helgaas wrote:
> >> [+cc linux-acpi, linux-kernel, dri-devel]
> >>
> >> Hi Roland,
> >>
> >> I have no idea how to debug this problem.  Are you seeing something
> >> that suggests it may be a PCI problem?
> > 
> > Yes I suspect there is an ACPI and/ or PCI problem, possibly
> > device-specific. Steps to reproduce on the affected machines:
> > 
> >  1. Load nouveau.
> >  2. Wait for it to runtime suspend.
> >  2. Invoke 'lspci', this resumes the Nvidia PCI device via nouveau.
> >  3. lspci never returns, few moments later an AML_INFINITE_LOOP is
> >     reported.
> > 
> 
> I can confirm this. Same result on my machine.
> 
> Here is a link to my ACPI tables:
> https://bugs.launchpad.net/lpbugreporter/+bug/752542/+attachment/4722651/+files/Razer-Blade.tar.gz
> 
> The specific source for the NVIDIA card can be found in the ssdt5.dsl file.
> 
> 
>     Method (PGON, 1, Serialized)
>     {
>         /* ... */
> 
>         GPPR (PION, One)
>         If ((OSYS == 0x07D9))  /* Is Windows 2009 - In my case, setting to Windows 2009 only works! */
>         {
[..]
>         }
>         Else
>         {
>             LKEN (PION)
>         }
> 
>         /* ... */
>         
>         Return (Zero)
>     }
> 
> 
> 
> If not set to Windows 2009, then this is triggered:
> 
> 
>     Method (LKEN, 1, NotSerialized)
>     {
[..]
>     }

Yep, this is the same code. I stripped out irrelevant parts from the
previous mail for brevity.

> Is it possible to override the specific ACPI table functions (SSDT) in the DSDT?
> This way I could try to debug to find some more information...

See Documentation/acpi/initrd_table_override.txt and note that it is
important that the tables are really located at /kernel/firmware/acpi/
in your initrd (which must be the first, even before any possible
microcode updates).

What are you trying to do? For ACPI method tracing, see
Documentation/acpi/method-tracing.txt
-- 
Kind regards,
Peter Wu
https://lekensteyn.nl

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Thread

Re: Kernel Freeze with American Megatrends BIOS Bjorn Helgaas <helgaas@kernel.org> - 2016-08-29 18:10 +0200
  Re: Kernel Freeze with American Megatrends BIOS Roland Singer <roland.singer@desertbit.com> - 2016-08-29 21:10 +0200
    Re: Kernel Freeze with American Megatrends BIOS Bjorn Helgaas <helgaas@kernel.org> - 2016-08-29 21:10 +0200
      Re: Kernel Freeze with American Megatrends BIOS Roland Singer <roland.singer@desertbit.com> - 2016-08-29 22:00 +0200
        Re: Kernel Freeze with American Megatrends BIOS Bjorn Helgaas <helgaas@kernel.org> - 2016-08-30 02:00 +0200
          Re: Kernel Freeze with American Megatrends BIOS Roland Singer <roland.singer@desertbit.com> - 2016-08-30 12:20 +0200
            Re: Kernel Freeze with American Megatrends BIOS Bjorn Helgaas <helgaas@kernel.org> - 2016-08-30 15:10 +0200
              Re: Kernel Freeze with American Megatrends BIOS Emil Velikov <emil.l.velikov@gmail.com> - 2016-08-30 16:10 +0200
                Re: Kernel Freeze with American Megatrends BIOS Roland Singer <roland.singer@desertbit.com> - 2016-08-30 17:30 +0200
                Re: Kernel Freeze with American Megatrends BIOS Ilia Mirkin <imirkin@alum.mit.edu> - 2016-08-30 17:50 +0200
                Re: Kernel Freeze with American Megatrends BIOS Ilia Mirkin <imirkin@alum.mit.edu> - 2016-08-30 17:50 +0200
                Re: Kernel Freeze with American Megatrends BIOS Emil Velikov <emil.l.velikov@gmail.com> - 2016-08-30 17:50 +0200
                Re: Kernel Freeze with American Megatrends BIOS Roland Singer <roland.singer@desertbit.com> - 2016-08-30 19:40 +0200
                Re: Kernel Freeze with American Megatrends BIOS Ilia Mirkin <imirkin@alum.mit.edu> - 2016-08-30 19:50 +0200
                Re: Kernel Freeze with American Megatrends BIOS Roland Singer <roland.singer@desertbit.com> - 2016-08-30 20:10 +0200
                Re: Kernel Freeze with American Megatrends BIOS Ilia Mirkin <imirkin@alum.mit.edu> - 2016-08-30 20:20 +0200
                Re: Kernel Freeze with American Megatrends BIOS Peter Wu <peter@lekensteyn.nl> - 2016-08-30 21:30 +0200
                Re: Kernel Freeze with American Megatrends BIOS Roland Singer <roland.singer@desertbit.com> - 2016-08-31 13:20 +0200
                Re: Kernel Freeze with American Megatrends BIOS Roland Singer <roland.singer@desertbit.com> - 2016-08-31 13:20 +0200
                Re: Kernel Freeze with American Megatrends BIOS Emil Velikov <emil.l.velikov@gmail.com> - 2016-08-30 20:10 +0200
                Re: Kernel Freeze with American Megatrends BIOS Emil Velikov <emil.l.velikov@gmail.com> - 2016-08-30 20:20 +0200
                Re: Kernel Freeze with American Megatrends BIOS Roland Singer <roland.singer@desertbit.com> - 2016-08-31 13:00 +0200
  Re: Kernel Freeze with American Megatrends BIOS Peter Wu <peter@lekensteyn.nl> - 2016-08-30 22:00 +0200
    Re: Kernel Freeze with American Megatrends BIOS Roland Singer <roland.singer@desertbit.com> - 2016-08-31 13:30 +0200
      Re: Kernel Freeze with American Megatrends BIOS Peter Wu <peter@lekensteyn.nl> - 2016-08-31 13:50 +0200
        Re: Kernel Freeze with American Megatrends BIOS Roland Singer <roland.singer@desertbit.com> - 2016-08-31 14:30 +0200
          Re: Kernel Freeze with American Megatrends BIOS Peter Wu <peter@lekensteyn.nl> - 2016-08-31 14:40 +0200
            Re: Kernel Freeze with American Megatrends BIOS Roland Singer <roland.singer@desertbit.com> - 2016-08-31 15:20 +0200
              Re: Kernel Freeze with American Megatrends BIOS Roland Singer <roland.singer@desertbit.com> - 2016-08-31 22:10 +0200
                Re: Kernel Freeze with American Megatrends BIOS Roland Singer <roland.singer@desertbit.com> - 2016-08-31 22:20 +0200

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