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[Bug Watch Updater <396667@xxxxxxxxxxxxxxxxxx>]

Launchpad has imported 11 comments from the remote bug at
http://bugs.freedesktop.org/show_bug.cgi?id=22428.

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On 2009-06-23T00:37:32+00:00 Haien-liu wrote:

Created an attachment (id=27026)
xorg.0.log

System Environment:
--------------------------
Host:           x-aspire1
Arch:           i386
Platform:        945GME
Libdrm:         (master)790097c51330090b2b7b90429b9ab8ddf259fd8e
Mesa:           (mesa_7_5_branch)2f184d0d9f4600a20022887674b77f45ee6b728e
Xserver:              
(server-1.6-branch)dbac41b624e4aa86a6a184b7ebb52bfdd367bbf0
Xf86_video_intel:              
(master)418b473824e81a84b929b9d100f85f532b94422b
Kernel:             (for-linus)0e7ddf7eeeef5aea85412120539ab5369577faeb

Bug detailed description:
-------------------------
mesa xdemo/System Environment:
--------------------------
Host:           x-aspire1
Arch:           i386
Platform:        945GME
Libdrm:         (master)790097c51330090b2b7b90429b9ab8ddf259fd8e
Mesa:           (mesa_7_5_branch)2f184d0d9f4600a20022887674b77f45ee6b728e
Xserver:              
(server-1.6-branch)dbac41b624e4aa86a6a184b7ebb52bfdd367bbf0
Xf86_video_intel:              
(master)418b473824e81a84b929b9d100f85f532b94422b
Kernel:             (for-linus)0e7ddf7eeeef5aea85412120539ab5369577faeb

Bug detailed description:
-------------------------
mesa xdemo/glxcontexts run aborted with below error:
glxcontexts: intel_buffer_objects.c:103: intel_bufferobj_free: Assertion `!obj->Pointer' failed.
Aborted

Reproduce Steps:
------------------
1. xinit&
2. run mesa xdemo/glxcontexts

Reply at: https://bugs.launchpad.net/mesa/+bug/396667/comments/0

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On 2009-06-23T01:06:27+00:00 Haien-liu wrote:

Created an attachment (id=27029)
xorg conf file

Reply at: https://bugs.launchpad.net/mesa/+bug/396667/comments/1

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On 2009-06-23T01:08:32+00:00 Haien-liu wrote:

mesa demo/isosurf got the similar issue,but the error is as below:
isosurf: intel_buffer_objects.c:103: intel_bufferobj_free: Assertion `!obj->Pointer' failed.
Aborted

Reply at: https://bugs.launchpad.net/mesa/+bug/396667/comments/2

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On 2009-06-23T08:30:08+00:00 Brian-paul wrote:

I can't reproduce this here with Mesa 7.5.
I'm checking in some fixes for glxcontexts.c though.

Reply at: https://bugs.launchpad.net/mesa/+bug/396667/comments/3

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On 2009-06-25T03:35:02+00:00 Jonathan Michalon wrote:

Same issue here. I'm using version of
7.5.0~git20090622+mesa-7-5-branch.abfd56c2-0ubuntu0sarvatt
package. No 3D application working anymore, switching to High importance.

Reply at: https://bugs.launchpad.net/mesa/+bug/396667/comments/4

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On 2009-06-26T01:51:37+00:00 Haien-liu wrote:

same issue happens in playing neverball game.

Reply at: https://bugs.launchpad.net/mesa/+bug/396667/comments/5

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On 2009-06-28T18:37:20+00:00 Gordon Jin wrote:

Ian, can you reproduce?

I'm increasing severity since it impacts real-world application.

Reply at: https://bugs.launchpad.net/mesa/+bug/396667/comments/6

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On 2009-06-28T19:34:40+00:00 Haien-liu wrote:

the issue also impacts our glean case (texgen,vertattrib),I think it is
a regression in mesa 7.5 branch. I am trying to bisect.

Reply at: https://bugs.launchpad.net/mesa/+bug/396667/comments/7

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On 2009-06-28T21:59:22+00:00 Haien-liu wrote:

I find the reason, below commit caused this issue:
commit ff3da0966fc91cd5bcfed994e5edadbf25903c47
Author: Eric Anholt <eric@xxxxxxxxxx>
Date:   Tue Jun 2 06:53:40 2009 -0700

        i915: Don't put VBOs in graphics memory unless required for an
operation.

	This saves doing swtnl from uncached memory, which is painful.  Improves
	clutter test-text performance by 10% since it started using VBOs.
	(cherry picked from commit a945e203d4fe254593bc0c5c5d6caca45e65f9f7)

Reply at: https://bugs.launchpad.net/mesa/+bug/396667/comments/8

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On 2009-06-30T13:30:04+00:00 Eric Anholt wrote:

commit c72261f2a886e1f53025c2cf4b38b33ccfd62857
Author: Eric Anholt <eric@xxxxxxxxxx>
Date:   Mon Jun 29 18:48:27 2009 -0700

    i915: Fix assertion failure on remapping a non-BO-backed VBO.
    
    Failure to set the obj->Pointer back to null tripped up the assertion.
    Bug #22428.
    (cherry picked from commit 57a06d3a48c9af1067ec05e3ad96c58f4b9b99be)

Reply at: https://bugs.launchpad.net/mesa/+bug/396667/comments/9

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On 2009-06-30T20:04:33+00:00 Haien-liu wrote:

verified with below commits:
Libdrm:		(master)de1ed01214874dcdd6116ff2587c8710d6ed4d2d
Mesa:		(mesa_7_5_branch)4e43126a5915b1233c89c61400c8270d23d48ea3
Xserver:	(server-1.6-branch)a7a93c12f91e0de72868f17a555215f1795d9e2f
Xf86_video_intel:		(master)afac333bef4a0ac934f0e4d933dc5053d81ca88c
Kernel:       (qa-branch)07a2039b8eb0af4ff464efd3dfd95de5c02648c6

Reply at: https://bugs.launchpad.net/mesa/+bug/396667/comments/10


** Changed in: mesa
   Importance: Unknown => High

-- 
intel_buffer_objects.c:103: intel_bufferobj_free: Assertion `!obj->Pointer' failed.
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