[Bug 57350] New: [nouveau, linux-3.7-rc] Broken cursor and kernel log swamped with "PAGE_NOT_PRESENT" errors

[Bug 57350] New: [nouveau, linux-3.7-rc] Broken cursor and kernel log swamped with "PAGE_NOT_PRESENT" errors

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=57350

          Priority: medium
            Bug ID: 57350
          Assignee: dri-devel@lists.freedesktop.org
           Summary: [nouveau, linux-3.7-rc] Broken cursor and kernel log
                    swamped with "PAGE_NOT_PRESENT" errors
          Severity: normal
    Classification: Unclassified
                OS: All
          Reporter: bonbons67@internet.lu
          Hardware: Other
            Status: NEW
           Version: XOrg CVS
         Component: DRM/other
           Product: DRI

On a MacBookAir with GeForce 9400M (C79) when X starts after booting (using
Enlightenment with compositing) a horizontal bar in the middle of cursor (about
1/3 of cursor height) is transparent instead of showing cursor.

At the same time, kernel log is being filled with following error:
nouveau E[     PFB][0000:02:00.0] trapped read at $addr on channel $fixed_addr
BAR/PFIFO_READ/FB reason: PAGE_NOT_PRESENT


$fixed_addr is always the same (0x0000fee0) and $addr changes each time (e.g.
0x000040fe00 then 0x000040fe0c then 0x000040fe14 and continues incrementing)

Doing a suspend to ram and resume makes the cursor show correctly and error
message not appearing anymore in kernel log.

Software versions:
 linux-3.7-rc5, linux-3.7-rc6
 xorg-server-1.13.0
 xf86-video-nouveau-1.0.4
 libdrm-2.4.40
 mesa-9.0

It was also the case with xorg-server-1.12.2, xf86-video-nouveau GIT snapshot
from march 2012, libdrm-2.4.33, mesa-8.0.3) but did not happen with this setup
with older kernel (linux-3.5.x, not sure anymore about linux-3.6.x)

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[Bug 57350] [nouveau, linux-3.7-rc] Broken cursor and kernel log swamped with "PAGE_NOT_PRESENT" errors

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=57350

--- Comment #1 from Brandon Smith <freedom@reardencode.com> ---
Same here on my MacbookPro(6,2) with NV50 graphics.

Here's an example error line:
[  182.772471] nouveau E[     PFB][0000:01:00.0] trapped read at 0x000070ea38
on channel 0x0001fed0 BAR/PFIFO_READ/FB reason: PAGE_NOT_PRESENT

I can narrow the version down further:
3.6.10 works
3.7.0 does not.

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[Bug 57350] [nouveau, linux-3.7-rc] Broken cursor and kernel log swamped with "PAGE_NOT_PRESENT" errors

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=57350

--- Comment #2 from Rui Salvaterra <rsalvaterra@gmail.com> ---
Created attachment 71608
  --> https://bugs.freedesktop.org/attachment.cgi?id=71608&action=edit
dmesg

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[Bug 57350] [nouveau, linux-3.7-rc] Broken cursor and kernel log swamped with "PAGE_NOT_PRESENT" errors

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=57350

--- Comment #3 from Rui Salvaterra <rsalvaterra@gmail.com> ---
This also happens on my nVIDIA ION (MCP79) system, Unity Dash graphics become
severely corrupted. I'm currently running Ubuntu 12.10 with the xorg edgers
ppa. My dmesg is attached.

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[Bug 57350] [nouveau, linux-3.7-rc] Broken cursor and kernel log swamped with "PAGE_NOT_PRESENT" errors

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=57350

--- Comment #4 from David Herrmann <dh.herrmann@gmail.com> ---
I can provoke this bug with a simple drmModeSetCursor() or drmModeMoveCursor().
The cursor images have a horizontal black stripe (not always). Position varies
on my machine. Using 3D acceleration without cursors works perfectly well
(although starting mplayer caused a deadlock on my machine).

It's also a nv50 card.

I tried bisecting it and it turns out the memory-manager rewrite caused it (as
reported on IRC). I was unable to revert the commit on top of 3.7 as it is
quite complex.

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[Bug 57350] [nouveau, linux-3.7-rc] Broken cursor and kernel log swamped with "PAGE_NOT_PRESENT" errors

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=57350

--- Comment #5 from Marcin Slusarz <marcin.slusarz@gmail.com> ---
Rui Salvaterra: your bug is completely different from the others

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[Bug 57350] [nouveau, linux-3.7-rc] Broken cursor and kernel log swamped with trapped reads/writes from BAR/PFIFO_READ/FB

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=57350

Marcin Slusarz <marcin.slusarz@gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
            Summary|[nouveau, linux-3.7-rc]     |[nouveau, linux-3.7-rc]
                   |Broken cursor and kernel    |Broken cursor and kernel
                   |log swamped with            |log swamped with trapped
                   |"PAGE_NOT_PRESENT" errors   |reads/writes from
                   |                            |BAR/PFIFO_READ/FB

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[Bug 57350] [nouveau, linux-3.7-rc] Broken cursor and kernel log swamped with trapped reads/writes from BAR/PFIFO_READ/FB

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=57350

Marcin Slusarz <marcin.slusarz@gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
  Attachment #71608|0                           |1
        is obsolete|                            |

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[Bug 57350] [nouveau, linux-3.7-rc] Broken cursor and kernel log swamped with trapped reads/writes from BAR/PFIFO_READ/FB

[bugzilla-daemon]

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https://bugs.freedesktop.org/show_bug.cgi?id=57350

Marcin Slusarz <marcin.slusarz@gmail.com> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
           Assignee|dri-devel@lists.freedesktop |nouveau@lists.freedesktop.o
                   |.org                        |rg
         QA Contact|                            |xorg-team@lists.x.org
            Product|DRI                         |xorg
            Version|XOrg CVS                    |unspecified
          Component|DRM/other                   |Driver/nouveau

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