[Bug 58372] New: [KMS][Cayman] Garbled screen and gpu crash with 6950 with drm-next

[Bug 58372] New: [KMS][Cayman] Garbled screen and gpu crash with 6950 with drm-next

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=58372

          Priority: medium
            Bug ID: 58372
          Assignee: dri-devel@lists.freedesktop.org
           Summary: [KMS][Cayman] Garbled screen and gpu crash with 6950
                    with drm-next
          Severity: normal
    Classification: Unclassified
                OS: All
          Reporter: serkan@hosca.com
          Hardware: Other
            Status: NEW
           Version: XOrg CVS
         Component: DRM/Radeon
           Product: DRI

Created attachment 71594
  --> https://bugs.freedesktop.org/attachment.cgi?id=71594&action=edit
dmesg with drm-next

Using linus + airlied's drm-next produces garbled screen and gpu crashes after
login.

Using mesa git and xf86-ati git.

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[Bug 58372] [KMS][Cayman] Garbled screen and gpu crash with 6950 with drm-next

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https://bugs.freedesktop.org/show_bug.cgi?id=58372

--- Comment #1 from Serkan Hosca <serkan@hosca.com> ---
Created attachment 71595
  --> https://bugs.freedesktop.org/attachment.cgi?id=71595&action=edit
dmesg with linus git

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[Bug 58372] [KMS][Cayman] Garbled screen and gpu crash with 6950 with drm-next

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https://bugs.freedesktop.org/show_bug.cgi?id=58372

--- Comment #2 from Serkan Hosca <serkan@hosca.com> ---
Forgot to add, using lightdm + cinnamon on arch

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[Bug 58372] [KMS][Cayman] Garbled screen and gpu crash with 6950 with drm-next

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https://bugs.freedesktop.org/show_bug.cgi?id=58372

--- Comment #3 from Alexandre Demers <alexandre.f.demers@gmail.com> ---
If you can, could you bisect?

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[Bug 58372] [KMS][Cayman] Garbled screen and gpu crash with 6950 with drm-next

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=58372

--- Comment #4 from Serkan Hosca <serkan@hosca.com> ---
bisect result:

0d0b3e7443bed6b49cb90fe7ddc4b5578a83a88d is the first bad commit
commit 0d0b3e7443bed6b49cb90fe7ddc4b5578a83a88d
Author: Jerome Glisse <jglisse@redhat.com>
Date:   Wed Nov 28 13:47:55 2012 -0500

    drm/radeon: use cached memory when evicting for vram on non agp

    Force the use of cached memory when evicting from vram on non agp
    hardware. Also force write combine on agp hw. This is to insure
    the minimum cache type change when allocating memory and improving
    memory eviction especialy on pci/pcie hw.

    Signed-off-by: Jerome Glisse <jglisse@redhat.com>

:040000 040000
c917ebaa086f5efea9928e707d97bdb90ef6919935d6eaaa7b1115d9e3696c200da139695c19ad15
M     drivers

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[Bug 58372] [KMS][Cayman] Garbled screen and gpu crash with 6950 with drm-next

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https://bugs.freedesktop.org/show_bug.cgi?id=58372

--- Comment #5 from Alex Deucher <agd5f@yahoo.com> ---
Does your kernel tree have this patch?
http://cgit.freedesktop.org/~airlied/linux/commit/drivers/gpu/drm/radeon/radeon_object.c?h=drm-next&id=dd54fee7d440c4a9756cce2c24a50c15e4c17ccb

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[Bug 58372] [KMS][Cayman] Garbled screen and gpu crash with 6950 with drm-next

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https://bugs.freedesktop.org/show_bug.cgi?id=58372

--- Comment #6 from Serkan Hosca <serkan@hosca.com> ---
(In reply to comment #5)
> Does your kernel tree have this patch?
> http://cgit.freedesktop.org/~airlied/linux/commit/drivers/gpu/drm/radeon/
> radeon_object.c?h=drm-next&id=dd54fee7d440c4a9756cce2c24a50c15e4c17ccb

Yea i have that commit.

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[Bug 58372] [KMS][Cayman] Garbled screen and gpu crash with 6950 with drm-next

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https://bugs.freedesktop.org/show_bug.cgi?id=58372

--- Comment #7 from Serkan Hosca <serkan@hosca.com> ---
Created attachment 71883
  --> https://bugs.freedesktop.org/attachment.cgi?id=71883&action=edit
dmesg with drm-fixes-3.8

The dmesg message changed after merging in drm-fixes-3.8:

[drm:evergreen_vm_reg_valid] *ERROR* Invalid register 0x8040 in CS

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[Bug 58372] [KMS][Cayman] Garbled screen and gpu crash with 6950 with drm-next

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https://bugs.freedesktop.org/show_bug.cgi?id=58372

--- Comment #8 from Alex Deucher <agd5f@yahoo.com> ---
(In reply to comment #7)
> Created attachment 71883 [details]
> dmesg with drm-fixes-3.8
> 
> The dmesg message changed after merging in drm-fixes-3.8:
> 
> [drm:evergreen_vm_reg_valid] *ERROR* Invalid register 0x8040 in CS

That's a different bug.  Please file a new one for that.  what you are seeing
is due to a change in mesa:
http://cgit.freedesktop.org/mesa/mesa/commit/?id=24b1206ab2dcd506aaac3ef656aebc8bc20cd27a

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[Bug 58372] [KMS][Cayman] Garbled screen and gpu crash with 6950 with drm-next

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https://bugs.freedesktop.org/show_bug.cgi?id=58372

--- Comment #9 from Alexandre Demers <alexandre.f.demers@gmail.com> ---
(In reply to comment #8)
> (In reply to comment #7)
> > Created attachment 71883 [details]
> > dmesg with drm-fixes-3.8
> > 
> > The dmesg message changed after merging in drm-fixes-3.8:
> > 
> > [drm:evergreen_vm_reg_valid] *ERROR* Invalid register 0x8040 in CS
> 
> That's a different bug.  Please file a new one for that.  what you are
> seeing is due to a change in mesa:
> http://cgit.freedesktop.org/mesa/mesa/commit/
> ?id=24b1206ab2dcd506aaac3ef656aebc8bc20cd27a

Opening it, I'm hitting the same bug.

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[Bug 58372] [KMS][Cayman] Garbled screen and gpu crash with 6950 with drm-next

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https://bugs.freedesktop.org/show_bug.cgi?id=58372

--- Comment #10 from Serkan Hosca <serkan@hosca.com> ---
(In reply to comment #9)
> (In reply to comment #8)
> > (In reply to comment #7)
> > > Created attachment 71883 [details]
> > > dmesg with drm-fixes-3.8
> > > 
> > > The dmesg message changed after merging in drm-fixes-3.8:
> > > 
> > > [drm:evergreen_vm_reg_valid] *ERROR* Invalid register 0x8040 in CS
> > 
> > That's a different bug.  Please file a new one for that.  what you are
> > seeing is due to a change in mesa:
> > http://cgit.freedesktop.org/mesa/mesa/commit/
> > ?id=24b1206ab2dcd506aaac3ef656aebc8bc20cd27a
> 
> Opening it, I'm hitting the same bug.

You need this:
http://cgit.freedesktop.org/~agd5f/linux/commit/?h=drm-fixes-3.8&id=668bbc81baf0f34df832d8aca5c7d5e19a493c68

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[Bug 58372] [KMS][Cayman] Garbled screen and gpu crash with 6950 with drm-next

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https://bugs.freedesktop.org/show_bug.cgi?id=58372

--- Comment #11 from Serkan Hosca <serkan@hosca.com> ---
No change with linus git rc3 as of today + drm-fixes-3.8  with mesa at
e09a5846cdab01a3bf04ac8c11e352d85b89b4af and -ati at
102ee4a24e4c9ba0c0b65d3ca8599dc7e0216c1e. It floods the dmesg after login and
computer freezes.

I tried switching to gdm but i dont't even get to the login screen, computer
freezes.

I tried openbox, i was able to login and ran glxgears, some 3d screensavers but
the computer froze when i tried some webgl demos. I saw a couple of:
radeon: The kernel rejected CS, see dmesg for more information
in the terminal and the same dmesg flood and the computer freezes.

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[Bug 58372] [KMS][Cayman] Garbled screen and gpu crash with 6950 with drm-next

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https://bugs.freedesktop.org/show_bug.cgi?id=58372

--- Comment #12 from Serkan Hosca <serkan@hosca.com> ---
Created attachment 72948
  --> https://bugs.freedesktop.org/attachment.cgi?id=72948&action=edit
dmesg with linus rc3 drm-fixes-3.8 as of jan 13 before crash

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[Bug 58372] [KMS][Cayman] Garbled screen and gpu crash with 6950 with drm-next

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https://bugs.freedesktop.org/show_bug.cgi?id=58372

Serkan Hosca <serkan@hosca.com> changed:

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

--- Comment #13 from Serkan Hosca <serkan@hosca.com> ---
This is fixed with 3.8 release and mesa git master

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