| Summary: | [bisected G45] Blender segfaults | ||
|---|---|---|---|
| Product: | Mesa | Reporter: | Sven Arvidsson <sa> |
| Component: | Drivers/DRI/i965 | Assignee: | Eric Anholt <eric> |
| Status: | CLOSED FIXED | QA Contact: | |
| Severity: | normal | ||
| Priority: | high | CC: | wolfgang.kufner, xunx.fang |
| Version: | unspecified | Keywords: | NEEDINFO |
| Hardware: | Other | ||
| OS: | All | ||
| Whiteboard: | |||
| i915 platform: | i915 features: | ||
| Attachments: |
Viewport shading button
gdb log of blender crash on button push |
||
This could be the same bug that I have observed and described in https://bugs.launchpad.net/ubuntu/+source/mesa/+bug/427712 although here it does really not matter much what button in blender I click or even only mouse over. Anyway, this regression appeared between commits 4d85a6b3 and 18882f4d. file: libgl1-mesa-dri I attach my gdb log of the crash. please let me know if you need further information Created attachment 29426 [details]
gdb log of blender crash on button push
(In reply to comment #1) > This could be the same bug that I have observed and described in > https://bugs.launchpad.net/ubuntu/+source/mesa/+bug/427712 although here it > does really not matter much what button in blender I click or even only mouse > over. Doh! Indeed, almost any button will cause a segfault. Bisecting leads to this: 36dd53a3cded9d003ec418732b7fc93c1476aa9b is first bad commit commit 36dd53a3cded9d003ec418732b7fc93c1476aa9b Author: Eric Anholt <eric@anholt.net> Date: Thu Sep 10 09:26:38 2009 -0700 intel: Don't forget to map the depth read buffer in spans. This broke BlitFramebufferEXT(GL_DEPTH_BUFFER_BIT). :040000 040000 549d8f39d7717322b09dc656a5129f46162471f3 53fb80a11730f3ecfdf03231418e8dee0f7e984b M src Please retest with mesa master: Branch: master Commit: 8ec456c68cc69349c2506ce64047d06c7113780c URL: http://cgit.freedesktop.org/mesa/mesa/commit/?id=8ec456c68cc69349c2506ce64047d06c7113780c Author: Brian Paul <brianp@vmware.com> Date: Mon Sep 14 12:40:53 2009 -0600 intel: fix renderbuffer map/unmap regression Commit 36dd53a3cded9d003ec418732b7fc93c1476aa9b caused a few regressions because the glReadBuffer() buffer wasn't getting mapped when GL_READ_BUFFER != GL_DRAW_BUFFER. Yes, this bug is indeed fixed. :-)
I checked with fresh packages from ubuntu xorg-edgers ppa:
mesa (7.7.0~git20090914.d3f5a2e5-0ubuntu0tormod)
* Checkout from git 20090914 (master branch) up to commit
d3f5a2e5ab413ec0dab1efa8135705e5312d361d
|
Use of freedesktop.org services, including Bugzilla, is subject to our Code of Conduct. How we collect and use information is described in our Privacy Policy.
Created attachment 29412 [details] Viewport shading button Pressing the "Viewport Shading" (see screenshot if it's not apparent which one) button in Blender causes instant segfault. Works fine in software mode. I think this is a regression, so I might try a bisect when I have time. #0 0x00000000 in ?? () No symbol table info available. #1 0xb5d3638a in _swrast_ReadPixels (ctx=0x85, x=337, y=263, width=133, height=136, format=6408, type=5121, packing=0x8ef01fc, pixels=0xa054400) at swrast/s_readpix.c:605 clippedPacking = {Alignment = 4, RowLength = 133, SkipPixels = 0, SkipRows = 0, ImageHeight = 0, SkipImages = 0, SwapBytes = 0 '\0', LsbFirst = 0 '\0', ClientStorage = 0 '\0', Invert = 0 '\0', BufferObj = 0x8eafd18} #2 0xb5c116cf in intelReadPixels (ctx=0x8ee32d8, x=337, y=263, width=133, height=136, format=6408, type=5121, pack=0x8ef01fc, pixels=0xa054400) at intel_pixel_read.c:314 __func__ = "intelReadPixels" #3 0xb5caff36 in _mesa_ReadPixels (x=337, y=263, width=133, height=136, format=6408, type=5121, pixels=0xa054400) at main/readpix.c:208 ctx = 0x8ee32d8 System environment: -- chipset: G45 / ICH10R -- system architecture: 32-bit -- Linux distribution: Debian unstable -- Machine or mobo model: Asus P5Q-EM -- Display connector: DVI -- KMS: enabled -- xf86-video-intel: efbcf29dd1a1ca058b7a2a93f0685102c06c9369 -- xserver: 1.6.3 -- mesa: 7c0152fbaeb21ab423a9de339b85c54d1713432b -- drm: 67e4172394a88d4922fb8d9c7c3d96ce7e02c5a6 -- kernel: 2.6.31-rc9