Nouveau - Oct 2015 - [Bug 92727] New: nouveau E[ PBUS][0000:01:00.0] MMIO read of 0x00000000 FAULT at 0x002140 [ !ENGINE ]

https://bugs.freedesktop.org/show_bug.cgi?id=92727

            Bug ID: 92727
           Summary: nouveau E[ PBUS][0000:01:00.0] MMIO read of 0x00000000
                    FAULT at 0x002140 [ !ENGINE ]
           Product: xorg
           Version: unspecified
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: Driver/nouveau
          Assignee: nouveau at lists.freedesktop.org
          Reporter: caravena at gmail.com
        QA Contact: xorg-team at lists.x.org

Open bug in launchpad.net
https://bugs.launchpad.net/ubuntu/+source/xserver-xorg-video-nouveau/+bug/1511473

dmesg:
[ 163.227218] nouveau E[ PBUS][0000:01:00.0] MMIO read of 0x00000000 FAULT at
0x002140 [ !ENGINE ]

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https://bugs.freedesktop.org/show_bug.cgi?id=92727

Ilia Mirkin <imirkin at alum.mit.edu> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|nouveau E[                  |[NVC1] PFIFO not accessible
                   |PBUS][0000:01:00.0] MMIO    |when coming out of runtime
                   |read of 0x00000000 FAULT at |pm
                   |0x002140 [ !ENGINE ]        |

--- Comment #1 from Ilia Mirkin <imirkin at alum.mit.edu> ---
... gpu comes ok ...

[  133.975729] ACPI Warning: \_SB_.PCI0.PEG0.PEGP._DSM: Argument #4 type
mismatch - Found [Buffer], ACPI requires [Package] (20141107/nsarguments-95)
[  133.975805] ACPI: \_SB_.PCI0.PEG0.PEGP: failed to evaluate _DSM
[  133.975809] ACPI Warning: \_SB_.PCI0.PEG0.PEGP._DSM: Argument #4 type
mismatch - Found [Buffer], ACPI requires [Package] (20141107/nsarguments-95)
[  149.703743] r8169 0000:03:00.0 eth0: link down
[  163.217080] ACPI Warning: \_SB_.PCI0.PEG0.PEGP._DSM: Argument #4 type
mismatch - Found [Buffer], ACPI requires [Package] (20141107/nsarguments-95)
[  163.217166] ACPI: \_SB_.PCI0.PEG0.PEGP: failed to evaluate _DSM
[  163.217170] ACPI Warning: \_SB_.PCI0.PEG0.PEGP._DSM: Argument #4 type
mismatch - Found [Buffer], ACPI requires [Package] (20141107/nsarguments-95)
[  163.227218] nouveau E[    PBUS][0000:01:00.0] MMIO read of 0x00000000 FAULT
at 0x002140 [ !ENGINE ]

Weird, I guess it doesn't come out of runpm sometimes? You can workaround
this
by booting with nouveau.runpm=0 but it will leave the nvidia gpu on the whole
time.

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Martin Peres <martin.peres at free.fr> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |RESOLVED
         Resolution|---                         |MOVED

--- Comment #2 from Martin Peres <martin.peres at free.fr> ---
-- GitLab Migration Automatic Message --

This bug has been migrated to freedesktop.org's GitLab instance and has been
closed from further activity.

You can subscribe and participate further through the new bug through this link
to our GitLab instance:
https://gitlab.freedesktop.org/xorg/driver/xf86-video-nouveau/issues/227.

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