[Bug 88786] Radeon Hawaii crash on a 32-bit kernel

[Bug 88786] Radeon Hawaii crash on a 32-bit kernel

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=88786

            Bug ID: 88786
           Summary: Radeon Hawaii crash on a 32-bit kernel
           Product: DRI
           Version: unspecified
          Hardware: x86 (IA32)
                OS: Linux (All)
            Status: NEW
          Severity: major
          Priority: medium
         Component: DRM/Radeon
          Assignee: dri-devel@lists.freedesktop.org
          Reporter: terraluna977@gmail.com
        QA Contact: terraluna977@gmail.com

Created attachment 112799
  --> https://bugs.freedesktop.org/attachment.cgi?id=112799&action=edit
dmesg booted with drm.debug

The new MSI Hawaii board, used single or 2-headed.
The crash in 
[    5.654006] kernel BUG at drivers/gpu/drm/radeon/radeon_sa.c:321!
[    5.654008] invalid opcode: 0000 [#1] PREEMPT SMP 

The crash is 100% repeatable. The system will boot OK to X with
radeon.modeset=0.
The kernel has added trace to verify the firmware requested.

Unclear about 64-bit behavior, since I am booting a live USB distro.
Distro based on Debian Jessie, with
X.Org X Server 1.16.2.901 (1.16.3 RC 1)
Release Date: 2014-12-09

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[Bug 88786] Radeon Hawaii crash on a 32-bit kernel

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https://bugs.freedesktop.org/show_bug.cgi?id=88786

--- Comment #1 from Woody Suwalski <terraluna977@gmail.com> ---
Created attachment 112800
  --> https://bugs.freedesktop.org/attachment.cgi?id=112800&action=edit
Xorg log - uneventfull - stops at DRM

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[Bug 88786] Radeon Hawaii crash on a 32-bit kernel

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=88786

--- Comment #2 from Woody Suwalski <terraluna977@gmail.com> ---
Created attachment 112801
  --> https://bugs.freedesktop.org/attachment.cgi?id=112801&action=edit
Kernel config 32-bit, all DRM built in

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[Bug 88786] Radeon Hawaii crash on a 32-bit kernel

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=88786

Woody Suwalski <terraluna977@gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
 Attachment #112800|0                           |1
        is obsolete|                            |

--- Comment #3 from Woody Suwalski <terraluna977@gmail.com> ---
Created attachment 112802
  --> https://bugs.freedesktop.org/attachment.cgi?id=112802&action=edit
Xorg log - uneventfull - stops at DRM

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[Bug 88786] Radeon Hawaii crash on a 32-bit kernel

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=88786

--- Comment #4 from Woody Suwalski <terraluna977@gmail.com> ---
Created attachment 112805
  --> https://bugs.freedesktop.org/attachment.cgi?id=112805&action=edit
lspci -vvnn

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[Bug 88786] Radeon Hawaii crash on a 32-bit kernel

[bugzilla-daemon]

[-- Attachment #1.1: Type: text/plain, Size: 356 bytes --]

https://bugs.freedesktop.org/show_bug.cgi?id=88786

--- Comment #5 from Woody Suwalski <terraluna977@gmail.com> ---
Created attachment 112895
  --> https://bugs.freedesktop.org/attachment.cgi?id=112895&action=edit
dmesg for 64bit kernel, no Radeon crash

dmesg Ubuntu 14.10 AMD64

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[Bug 88786] Radeon Hawaii crash on a 32-bit kernel

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=88786

--- Comment #6 from Woody Suwalski <terraluna977@gmail.com> ---
Created attachment 112898
  --> https://bugs.freedesktop.org/attachment.cgi?id=112898&action=edit
Xorg log 64bit

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[Bug 88786] Radeon Hawaii crash on a 32-bit kernel

[bugzilla-daemon]

[-- Attachment #1.1: Type: text/plain, Size: 237 bytes --]

https://bugs.freedesktop.org/show_bug.cgi?id=88786

--- Comment #7 from Woody Suwalski <terraluna977@gmail.com> ---
Added files from a successful 64-bit kernel.

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[Bug 88786] Radeon Hawaii crash on a 32-bit kernel

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=88786

--- Comment #8 from Alex Deucher <alexdeucher@gmail.com> ---
Created attachment 112919
  --> https://bugs.freedesktop.org/attachment.cgi?id=112919&action=edit
possible fix

This patch will fix the crash you are seeing on 32 bit.  However it won't fix
the fact the that acceleration does not seem to initialized properly.

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[Bug 88786] Radeon Hawaii crash on a 32-bit kernel

[bugzilla-daemon]

[-- Attachment #1.1: Type: text/plain, Size: 459 bytes --]

https://bugs.freedesktop.org/show_bug.cgi?id=88786

--- Comment #9 from Woody Suwalski <terraluna977@gmail.com> ---
Created attachment 112924
  --> https://bugs.freedesktop.org/attachment.cgi?id=112924&action=edit
dmesg with new crash on a patched kernel

With the patch, the original crash is not happening anymore.
However Radeon still crashes, now in radeon_driver_postclose_kms.

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[Bug 88786] Radeon Hawaii crash on a 32-bit kernel

[bugzilla-daemon]

[-- Attachment #1.1: Type: text/plain, Size: 626 bytes --]

https://bugs.freedesktop.org/show_bug.cgi?id=88786

Alex Deucher <alexdeucher@gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
 Attachment #112919|0                           |1
        is obsolete|                            |

--- Comment #10 from Alex Deucher <alexdeucher@gmail.com> ---
Created attachment 112951
  --> https://bugs.freedesktop.org/attachment.cgi?id=112951&action=edit
possible fix

This updated patch should take care of it.

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[Bug 88786] Radeon Hawaii crash on a 32-bit kernel

[bugzilla-daemon]

[-- Attachment #1.1: Type: text/plain, Size: 386 bytes --]

https://bugs.freedesktop.org/show_bug.cgi?id=88786

--- Comment #11 from Woody Suwalski <terraluna977@gmail.com> ---
Created attachment 112957
  --> https://bugs.freedesktop.org/attachment.cgi?id=112957&action=edit
Yet another radeon crash with the new patch

The new patch is causing black screen and no VTs.

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[Bug 88786] Radeon Hawaii crash on a 32-bit kernel

[bugzilla-daemon]

[-- Attachment #1.1: Type: text/plain, Size: 599 bytes --]

https://bugs.freedesktop.org/show_bug.cgi?id=88786

Alex Deucher <alexdeucher@gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
 Attachment #112951|0                           |1
        is obsolete|                            |

--- Comment #12 from Alex Deucher <alexdeucher@gmail.com> ---
Created attachment 112975
  --> https://bugs.freedesktop.org/attachment.cgi?id=112975&action=edit
possible fix

One more try...

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[Bug 88786] Radeon Hawaii crash on a 32-bit kernel

[bugzilla-daemon]

[-- Attachment #1.1: Type: text/plain, Size: 555 bytes --]

https://bugs.freedesktop.org/show_bug.cgi?id=88786

--- Comment #13 from Woody Suwalski <terraluna977@gmail.com> ---
Created attachment 112997
  --> https://bugs.freedesktop.org/attachment.cgi?id=112997&action=edit
dmesg with the latest patch, system is functional now

With the V3 patch system boots and is functional.
A secondary problem could be investigated:
radeon 0000:01:00.0: disabling GPU acceleration

This problem was expected, and probably deserves a separate bug...

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[Bug 88786] Radeon Hawaii crash on a 32-bit kernel

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[-- Attachment #1.1: Type: text/plain, Size: 561 bytes --]

https://bugs.freedesktop.org/show_bug.cgi?id=88786

Woody Suwalski <terraluna977@gmail.com> changed:

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

--- Comment #14 from Woody Suwalski <terraluna977@gmail.com> ---
The V3 patch permits to boot to X (albait with acceleration turned off)

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[Bug 88786] Radeon Hawaii crash on a 32-bit kernel

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https://bugs.freedesktop.org/show_bug.cgi?id=88786

--- Comment #15 from Woody Suwalski <terraluna977@gmail.com> ---
Fixed in kernel 3.19

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[Bug 88786] Radeon Hawaii crash on a 32-bit kernel

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[-- Attachment #1.1: Type: text/plain, Size: 365 bytes --]

https://bugs.freedesktop.org/show_bug.cgi?id=88786

Woody Suwalski <terraluna977@gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Blocks|                            |89072

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