[Bug 36892] New: page faults / general protection faults under heavy 3d load

[Bug 36892] New: page faults / general protection faults under heavy 3d load

[bugzilla-daemon]

https://bugzilla.kernel.org/show_bug.cgi?id=36892

           Summary: page faults / general protection faults under heavy 3d
                    load
           Product: Drivers
           Version: 2.5
          Platform: All
        OS/Version: Linux
              Tree: Mainline
            Status: NEW
          Severity: normal
          Priority: P1
         Component: Video(DRI - non Intel)
        AssignedTo: drivers_video-dri@kernel-bugs.osdl.org
        ReportedBy: niels_ole@salscheider-online.de
        Regression: No


I get page faults or general protection faults under heavy 3d load (like
"sauerbraten", but sometimes switching windows with kwin is enough) in random
processes. I have a radeon hd 6870 and use r600g from mesa git.

This happens on 3.0-rc1 and 2.6.39. I am not sure if this is a problem with
older kernels, too, since I get gpu lockups with them.

I am not sure what could cause these problems, maybe some bug in gem / ttm?

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[Bug 36892] page faults / general protection faults under heavy 3d load

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https://bugzilla.kernel.org/show_bug.cgi?id=36892





--- Comment #1 from Niels Ole Salscheider <niels_ole@salscheider-online.de>  2011-06-07 14:13:59 ---
Created an attachment (id=61052)
 --> (https://bugzilla.kernel.org/attachment.cgi?id=61052)
kernel message

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[Bug 36892] page faults / general protection faults under heavy 3d load

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https://bugzilla.kernel.org/show_bug.cgi?id=36892





--- Comment #2 from Niels Ole Salscheider <niels_ole@salscheider-online.de>  2011-06-07 14:14:24 ---
Created an attachment (id=61062)
 --> (https://bugzilla.kernel.org/attachment.cgi?id=61062)
kernel message 2

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[Bug 36892] page faults / general protection faults under heavy 3d load

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https://bugzilla.kernel.org/show_bug.cgi?id=36892





--- Comment #3 from Niels Ole Salscheider <niels_ole@salscheider-online.de>  2011-06-07 14:14:41 ---
Created an attachment (id=61072)
 --> (https://bugzilla.kernel.org/attachment.cgi?id=61072)
kernel message 3

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[Bug 36892] page faults / general protection faults under heavy 3d load

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https://bugzilla.kernel.org/show_bug.cgi?id=36892





--- Comment #4 from Niels Ole Salscheider <niels_ole@salscheider-online.de>  2011-06-07 14:15:02 ---
Created an attachment (id=61082)
 --> (https://bugzilla.kernel.org/attachment.cgi?id=61082)
kernel message 4

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[Bug 36892] page faults / general protection faults under heavy 3d load

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https://bugzilla.kernel.org/show_bug.cgi?id=36892





--- Comment #5 from Niels Ole Salscheider <niels_ole@salscheider-online.de>  2011-06-07 14:18:17 ---
btw: I do not know why it was out of memory in the first error message. I have
8GB of ram but usually less than 4GB are used (most of it for virtuoso-t and
nepomukservices)

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[Bug 36892] page faults / general protection faults under heavy 3d load

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https://bugzilla.kernel.org/show_bug.cgi?id=36892


Niels Ole Salscheider <niels_ole@salscheider-online.de> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
                 CC|                            |niels_ole@salscheider-onlin
                   |                            |e.de
     Kernel Version|                            |3.0-rc1




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[Bug 36892] page faults / general protection faults under heavy 3d load

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Alan <alan@lxorguk.ukuu.org.uk> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
             Status|NEW                         |NEEDINFO
                 CC|                            |alan@lxorguk.ukuu.org.uk




--- Comment #6 from Alan <alan@lxorguk.ukuu.org.uk>  2012-08-24 13:41:21 ---
Is this still seen on modern (3.2+) kernels ?

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[Bug 36892] page faults / general protection faults under heavy 3d load

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https://bugzilla.kernel.org/show_bug.cgi?id=36892


Niels Ole Salscheider <niels_ole@salscheider-online.de> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
     Kernel Version|3.0-rc1                     |3.6-rc1




--- Comment #7 from Niels Ole Salscheider <niels_ole@salscheider-online.de>  2012-08-24 14:29:42 ---
I have just tried to run "sauerbraten" under 3.6-rc1. It seems to work fine,
but I get page allocation failure messages in dmesg, see attachment.

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[Bug 36892] page faults / general protection faults under heavy 3d load

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https://bugzilla.kernel.org/show_bug.cgi?id=36892


Niels Ole Salscheider <niels_ole@salscheider-online.de> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
  Attachment #61052|0                           |1
        is obsolete|                            |
  Attachment #61062|0                           |1
        is obsolete|                            |
  Attachment #61072|0                           |1
        is obsolete|                            |
  Attachment #61082|0                           |1
        is obsolete|                            |




--- Comment #8 from Niels Ole Salscheider <niels_ole@salscheider-online.de>  2012-08-24 14:30:17 ---
Created an attachment (id=78381)
 --> (https://bugzilla.kernel.org/attachment.cgi?id=78381)
dmesg output for 3.6-rc1

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[Bug 36892] page faults / general protection faults under heavy 3d load

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https://bugzilla.kernel.org/show_bug.cgi?id=36892


Alan <alan@lxorguk.ukuu.org.uk> changed:

           What    |Removed                     |Added
----------------------------------------------------------------------------
  Attachment #78381|application/octet-stream    |text/plain
          mime type|                            |




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[Bug 36892] page faults / general protection faults under heavy 3d load

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--- Comment #9 from Alan <alan@lxorguk.ukuu.org.uk>  2012-08-24 16:36:07 ---
The page allocation warnings are fine (and just warnings that perhaps the VM
needs further tuning)

The only oddity is this

[drm:radeon_cs_ioctl] *ERROR* Failed to parse relocation -12!

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[Bug 36892] page faults / general protection faults under heavy 3d load

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https://bugzilla.kernel.org/show_bug.cgi?id=36892

Alan <alan@lxorguk.ukuu.org.uk> changed:

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

--- Comment #10 from Alan <alan@lxorguk.ukuu.org.uk> ---
Which is an out of memory error so correctly just a warning

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