[Bug 111685] [Polaris 30] [Bisected] Kernel BUG during boot when amdgpu.dpm=0

[Bug 111685] [Polaris 30] [Bisected] Kernel BUG during boot when amdgpu.dpm=0

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=111685

            Bug ID: 111685
           Summary: [Polaris 30] [Bisected] Kernel BUG during boot when
                    amdgpu.dpm=0
           Product: DRI
           Version: DRI git
          Hardware: x86-64 (AMD64)
                OS: Linux (All)
            Status: NEW
          Severity: normal
          Priority: not set
         Component: DRM/AMDgpu
          Assignee: dri-devel@lists.freedesktop.org
          Reporter: omar.squircleart@gmail.com

Created attachment 145359
  --> https://bugs.freedesktop.org/attachment.cgi?id=145359&action=edit
Bisect log

To reproduce, pass the parameter amdgpu.dpm=0 to a kernel v5.2 or higher. The
kernel will hang at boot. v5.1 boots correctly.

I have bisected the kernel between v5.1 and v5.2, the bisect log is attached
below.

The last three lines from the log are as follow, the full log is attached
below:

kernel: BUG: unable to handle page fault for address: ffff91fe41bdf5f8
kernel: #PF: supervisor read access in kernel mode
kernel: #PF: error_code(0x0000) - not-present page

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[Bug 111685] [Polaris 30] [Bisected] Kernel BUG during boot when amdgpu.dpm=0

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=111685

--- Comment #1 from Omar Ahmad <omar.squircleart@gmail.com> ---
Created attachment 145360
  --> https://bugs.freedesktop.org/attachment.cgi?id=145360&action=edit
Full log after the hang

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[Bug 111685] [Polaris 30] [Bisected] Kernel BUG during boot when amdgpu.dpm=0

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=111685

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

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

--- Comment #2 from Martin Peres <martin.peres@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/drm/amd/issues/906.

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