[Bug 105401] Unable to start X on Vega AMDGPU(0): amdgpu_setup_kernel_mem failed

[Bug 105401] Unable to start X on Vega AMDGPU(0): amdgpu_setup_kernel_mem failed

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https://bugs.freedesktop.org/show_bug.cgi?id=105401

            Bug ID: 105401
           Summary: Unable to start X on Vega AMDGPU(0):
                    amdgpu_setup_kernel_mem failed
           Product: DRI
           Version: XOrg git
          Hardware: Other
                OS: All
            Status: NEW
          Severity: normal
          Priority: medium
         Component: DRM/AMDgpu
          Assignee: dri-devel@lists.freedesktop.org
          Reporter: tpearson@raptorengineering.com

A similar issue to the one described in Bug #105172 is affecting Vega GPUs on
POWER9 machines.  Log files attached.

System configuration:

Software versions:
    Linux 4.16.0-rc4 ppc64el

GPU hardware:
    Radeon RX Vega 56

CPU hardware:
    POWER9 PowerNV

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[Bug 105401] Unable to start X on Vega AMDGPU(0): amdgpu_setup_kernel_mem failed

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https://bugs.freedesktop.org/show_bug.cgi?id=105401

--- Comment #1 from Timothy Pearson <tpearson@raptorengineering.com> ---
Created attachment 137900
  --> https://bugs.freedesktop.org/attachment.cgi?id=137900&action=edit
dmesg after xorg load attempt

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[Bug 105401] Unable to start X on Vega AMDGPU(0): amdgpu_setup_kernel_mem failed

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https://bugs.freedesktop.org/show_bug.cgi?id=105401

--- Comment #2 from Timothy Pearson <tpearson@raptorengineering.com> ---
Created attachment 137901
  --> https://bugs.freedesktop.org/attachment.cgi?id=137901&action=edit
Xorg.0.log after load attempt

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[Bug 105401] Unable to start X on Vega AMDGPU(0): amdgpu_setup_kernel_mem failed

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https://bugs.freedesktop.org/show_bug.cgi?id=105401

Timothy Pearson <tpearson@raptorengineering.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Hardware|Other                       |PowerPC
                 OS|All                         |Linux (All)

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[Bug 105401] Unable to start X on Vega AMDGPU(0): amdgpu_setup_kernel_mem failed

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https://bugs.freedesktop.org/show_bug.cgi?id=105401

Alex Deucher <alexdeucher@gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Product|DRI                         |Mesa
            Version|XOrg git                    |unspecified
          Component|DRM/AMDgpu                  |Drivers/Gallium/radeonsi
         QA Contact|                            |dri-devel@lists.freedesktop
                   |                            |.org

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[Bug 105401] Unable to start X on Vega AMDGPU(0): amdgpu_setup_kernel_mem failed

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https://bugs.freedesktop.org/show_bug.cgi?id=105401

--- Comment #3 from Andrey Grodzovsky <andrey.grodzovsky@amd.com> ---
Please check your libdrm and verify it's version is 2.4.91 

https://lists.freedesktop.org/archives/dri-devel/2018-March/168156.html

I believe it should be fixed by 

amdgpu: Fix mistake in initial hole size calculation.

Andrey

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[Bug 105401] Unable to start X on Vega AMDGPU(0): amdgpu_setup_kernel_mem failed

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https://bugs.freedesktop.org/show_bug.cgi?id=105401

Timothy Pearson <tpearson@raptorengineering.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |NEEDINFO

--- Comment #4 from Timothy Pearson <tpearson@raptorengineering.com> ---
Version tested was 2.4.90.  Will retest with 2.4.91.

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[Bug 105401] Unable to start X on Vega AMDGPU(0): amdgpu_setup_kernel_mem failed

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https://bugs.freedesktop.org/show_bug.cgi?id=105401

Timothy Pearson <tpearson@raptorengineering.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
         Resolution|---                         |FIXED
             Status|NEEDINFO                    |RESOLVED

--- Comment #5 from Timothy Pearson <tpearson@raptorengineering.com> ---
Was able to test on Polaris.  Looks like the new version fixed things.

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