[Bug 28016] New: [REGR] RV635 GPU lockup after enabling unmappable VRAM V2 (KMS, Radeon)

[Bug 28016] New: [REGR] RV635 GPU lockup after enabling unmappable VRAM V2 (KMS, Radeon)

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https://bugs.freedesktop.org/show_bug.cgi?id=28016

           Summary: [REGR] RV635 GPU lockup after enabling unmappable VRAM
                    V2 (KMS, Radeon)
           Product: DRI
           Version: unspecified
          Platform: x86-64 (AMD64)
        OS/Version: Linux (All)
            Status: NEW
          Severity: critical
          Priority: medium
         Component: DRM/Radeon
        AssignedTo: dri-devel@lists.freedesktop.org
        ReportedBy: astronomo@op.pl


Created an attachment (id=35492)
 --> (https://bugs.freedesktop.org/attachment.cgi?id=35492)
kernel log with the backtrace

I have tested recent branches drm-radeon-testing (last commit
7a1ffce50373c177d3f6eecce52badc40c90e1dd) and drm-next (last commit
9e51159c14c29ebd485a45ba56f148e180d62c29) from
http://git.kernel.org/?p=linux/kernel/git/airlied/drm-2.6.git.  These branches
contain patches for enabling unmappable VRAM. However, soon after booting I am
getting a GPU lockup and corrupted console and X.

My hardware is laptop ASUS M50SA with 4GB system memory, and graphics 1GB
Mobility Radeon HD 3650.

I am attaching the kernel output with the backtrace and lspci -v output.

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[Bug 28016] [REGR] RV635 GPU lockup after enabling unmappable VRAM V2 (KMS, Radeon)

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https://bugs.freedesktop.org/show_bug.cgi?id=28016

--- Comment #1 from Grzegorz Kowal <astronomo@op.pl> 2010-05-07 04:42:22 PDT ---
Created an attachment (id=35493)
 --> (https://bugs.freedesktop.org/attachment.cgi?id=35493)
lspci -v output

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[Bug 28016] [REGR] RV635 GPU lockup after enabling unmappable VRAM V2 (KMS, Radeon)

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https://bugs.freedesktop.org/show_bug.cgi?id=28016

Grzegorz Kowal <astronomo@op.pl> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Priority|medium                      |high

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[Bug 28016] [REGR] RV635 GPU lockup after enabling unmappable VRAM V2 (KMS, Radeon)

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https://bugs.freedesktop.org/show_bug.cgi?id=28016

--- Comment #2 from Grzegorz Kowal <astronomo@op.pl> 2010-05-07 04:48:35 PDT ---
To be more precise, I bisected the commit introducing the problem.  It is
6b8b1786a8c29ce6e32298b93ac8d4a18a2b11c4 (drm/radeon/kms: enable use of
unmappable VRAM V2). Before it everything works fine.

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[Bug 28016] [REGR] RV635 GPU lockup after enabling unmappable VRAM V2 (KMS, Radeon)

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https://bugs.freedesktop.org/show_bug.cgi?id=28016

Alex Deucher <agd5f@yahoo.com> changed:

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

--- Comment #3 from Alex Deucher <agd5f@yahoo.com> 2010-05-07 06:18:03 PDT ---


*** This bug has been marked as a duplicate of bug 27822 ***

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[Bug 28016] [REGR] RV635 GPU lockup after enabling unmappable VRAM V2 (KMS, Radeon)

[bugzilla-daemon]

https://bugs.freedesktop.org/show_bug.cgi?id=28016

Grzegorz Kowal <astronomo@op.pl> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|RESOLVED                    |REOPENED
         Resolution|DUPLICATE                   |

--- Comment #4 from Grzegorz Kowal <astronomo@op.pl> 2010-05-07 08:35:57 PDT ---
I am reopening the bug since the patch included in bug 27822 does not resolve
my problem.

I have tested once again the recent branch drm-next with the last commit
"drm/ttm: fix, avoid iomapping system memory"
(9e51159c14c29ebd485a45ba56f148e180d62c29) and the problem remains.

I am attaching dmesg output from this as well.

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[Bug 28016] [REGR] RV635 GPU lockup after enabling unmappable VRAM V2 (KMS, Radeon)

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https://bugs.freedesktop.org/show_bug.cgi?id=28016

--- Comment #5 from Grzegorz Kowal <astronomo@op.pl> 2010-05-07 08:36:30 PDT ---
Created an attachment (id=35498)
 --> (https://bugs.freedesktop.org/attachment.cgi?id=35498)
dmesg output from drm-next

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[Bug 28016] KMS:RV635:HD3650 GPU lockup

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https://bugs.freedesktop.org/show_bug.cgi?id=28016

Jerome Glisse <glisse@freedesktop.org> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|[REGR] RV635 GPU lockup     |KMS:RV635:HD3650 GPU lockup
                   |after enabling unmappable   |
                   |VRAM V2 (KMS, Radeon)       |

--- Comment #6 from Jerome Glisse <glisse@freedesktop.org> 2010-05-10 03:14:46 PDT ---
Can you describe what you are doing when it lockup (where you using firefox on
heavy website with lot of picture ? ...)

Also please try with reverting :
6b8b1786a8c29ce6e32298b93ac8d4a18a2b11c4

and report if it helps

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[Bug 28016] KMS:RV635:HD3650 GPU lockup

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https://bugs.freedesktop.org/show_bug.cgi?id=28016

--- Comment #7 from Grzegorz Kowal <astronomo@op.pl> 2010-05-10 06:29:42 PDT ---
Basically, I am just booting the kernel.  The screen is corrupted since the
initialization of the KMS (bounch of white dots on black background, it looks
like each line is shifted horizontally).  When I log in using ssh, however,
everything seems to work fine.

Once I start the X server I am getting the soft lockup.  The screen flickers a
few times, the server seems to restart ending with the distorted image of kdm
background.  I can post the images if necessary.

After reverting 6b8b1786a8c29ce6e32298b93ac8d4a18a2b11c4 everything works fine.
 There is no screen corruption after the KMS initialization and the X server
works fine.  Obviously, the amount of accessible VRAM is reduced from 1024MB to
256MB then.

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[Bug 28016] KMS:RV635:HD3650 GPU lockup

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https://bugs.freedesktop.org/show_bug.cgi?id=28016

--- Comment #8 from Jerome Glisse <glisse@freedesktop.org> 2010-05-10 06:51:33 PDT ---
Please attach full dmesg

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[Bug 28016] KMS:RV635:HD3650 GPU lockup

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https://bugs.freedesktop.org/show_bug.cgi?id=28016

--- Comment #9 from Jerome Glisse <glisse@freedesktop.org> 2010-05-10 06:51:51 PDT ---
Full dmesg without the revert.

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[Bug 28016] KMS:RV635:HD3650 GPU lockup

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https://bugs.freedesktop.org/show_bug.cgi?id=28016

--- Comment #10 from Grzegorz Kowal <astronomo@op.pl> 2010-05-10 12:22:58 PDT ---
Created an attachment (id=35552)
 --> (https://bugs.freedesktop.org/attachment.cgi?id=35552)
Full dmesg without the revert.

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[Bug 28016] KMS:RV635:HD3650 GPU lockup

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https://bugs.freedesktop.org/show_bug.cgi?id=28016

--- Comment #11 from Grzegorz Kowal <astronomo@op.pl> 2010-05-10 12:30:42 PDT ---
Created an attachment (id=35553)
 --> (https://bugs.freedesktop.org/attachment.cgi?id=35553)
Full dmesg with the revert.

I have not noticed that my dmesg was not full (kernel log size was too small).

I am submitting two full dmesg outputs for the recent drm-radeon-testing
branch: one without any modifications (bad) and the second with the reverted
commit 6b8b1786 (good).

Jerome, let me know if you need anything else in order to diagnose this
problem.

Thanks!

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[Bug 28016] KMS:RV635:HD3650 GPU lockup

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https://bugs.freedesktop.org/show_bug.cgi?id=28016

--- Comment #12 from Jerome Glisse <glisse@freedesktop.org> 2010-06-03 12:10:06 PDT ---
Created an attachment (id=36035)
 View: https://bugs.freedesktop.org/attachment.cgi?id=36035
 Review: https://bugs.freedesktop.org/review?bug=28016&attachment=36035

HDP NONSURF to maximum size

Can you confirm that attach patch fix the issue for you

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[Bug 28016] KMS:RV635:HD3650 GPU lockup

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https://bugs.freedesktop.org/show_bug.cgi?id=28016

Grzegorz Kowal <astronomo@op.pl> changed:

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

--- Comment #13 from Grzegorz Kowal <astronomo@op.pl> 2010-06-03 14:39:09 PDT ---
I can confirm, that the patch fixes my problems.

Thanks!

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[Bug 28016] KMS:RV635:HD3650 GPU lockup

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https://bugs.freedesktop.org/show_bug.cgi?id=28016

Grzegorz Kowal <astronomo@op.pl> changed:

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

--- Comment #14 from Grzegorz Kowal <astronomo@op.pl> 2010-06-09 08:21:00 PDT ---
I am reopening this since the patch has not been applied yet.

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[Bug 28016] KMS:RV635:HD3650 GPU lockup

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https://bugs.freedesktop.org/show_bug.cgi?id=28016

Grzegorz Kowal <astronomo@op.pl> changed:

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

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