https://bugzilla.novell.com/show_bug.cgi?id=686725 https://bugzilla.novell.com/show_bug.cgi?id=686725#c0 Summary: High zoom in libreoffice causes a crash in X using intel driver for GM45 card Classification: openSUSE Product: openSUSE 11.4 Version: Final Platform: x86-64 OS/Version: openSUSE 11.4 Status: NEW Severity: Critical Priority: P5 - None Component: X.Org AssignedTo: bnc-team-xorg-bugs@forge.provo.novell.com ReportedBy: andrea.turrini@gmail.com QAContact: xorg-maintainer-bugs@forge.provo.novell.com Found By: --- Blocker: --- User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:2.0.0) Gecko/20100101 Firefox/4.0 I am using openSUSE 11.4 completely updated, KDE 4.6.2 from repo K:R:46 and LibreOffice from repo LibreOffice:/Stable. My video card is identified by lspci as: 00:02.0 VGA compatible controller: Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller (rev 07) and by X as: Intel(R) GM45. In ~/.xsession-error sometimes I find: OpenGL vendor string: Tungsten Graphics, Inc OpenGL renderer string: Mesa DRI Mobile Intel® GM45 Express Chipset GEM 20100330 DEVELOPMENT OpenGL version string: 2.1 Mesa 7.10 OpenGL shading language version string: 1.20 Driver: Intel GPU class: i965 OpenGL version: 2.1 GLSL version: 1.20 Mesa version: 7.10 X server version: 1.9.3 Linux kernel version: 2.6.37 Direct rendering: yes Requires strict binding: yes GLSL shaders: yes Texture NPOT support: yes If I use the intel driver (from package xorg-x11-driver-video-7.6-52.4) sometimes the cpu goes to 100% and then X crashes. This event is quite rare and it is very difficult to reproduce and even to understand what induces it. However using libreoffice I am able to induce probably the same crash, creating an empty presentation and then changing the zoom to at least 1200% using the slider or typing it after a double click on the zoom factor. The same happens using libreoffice draw (with the same zoom factor). If I change the Xorg driver from intel to intellegacy (from package xorg-x11-driver-video-intel-legacy-2.9.1-8.1) the above procedure does not induce a crash of X. The crash occurs also with a fresh user with all desktop effects disabled. Before submitting this report, I asked in a forum to reproduce the bug Reproducible: Always Steps to Reproduce: 1. Start X using the intel driver on a GM45 video card 2. Launch libreoffice impress and create an empty presentation 3. Change zoom to at least 1200% Actual Results: X crashes and the login screen comes up Expected Results: X does not crash, as happens using intellegacy driver In the Xorg.0.log file there is the following backtrace of the crash: Backtrace: [ 23062.651] 0: /usr/bin/Xorg (xorg_backtrace+0x28) [0x463678] [ 23062.651] 1: /usr/bin/Xorg (0x400000+0x6ae89) [0x46ae89] [ 23062.651] 2: /lib64/libc.so.6 (0x7f157045c000+0x32b30) [0x7f157048eb30] [ 23062.652] 3: /usr/lib64/xorg/modules/drivers/intel_drv.so (0x7f156e87d000+0x12696) [0x7f156e88f696] [ 23062.652] 4: /usr/lib64/xorg/modules/drivers/intel_drv.so (0x7f156e87d000+0x30614) [0x7f156e8ad614] [ 23062.652] 5: /usr/bin/Xorg (0x400000+0xd8861) [0x4d8861] [ 23062.652] 6: /usr/bin/Xorg (0x400000+0x2f6b1) [0x42f6b1] [ 23062.652] 7: /usr/bin/Xorg (0x400000+0x25ace) [0x425ace] [ 23062.652] 8: /lib64/libc.so.6 (__libc_start_main+0xfd) [0x7f157047abfd] [ 23062.652] 9: /usr/bin/Xorg (0x400000+0x25679) [0x425679] [ 23062.652] Segmentation fault at address 0x3f [ 23062.652] Fatal server error: [ 23062.652] Caught signal 11 (Segmentation fault). Server aborting [ 23062.652] [ 23062.652] Please consult the The X.Org Foundation support at http://wiki.x.org for help. [ 23062.652] Please also check the log file at "/var/log/Xorg.0.log" for additional information. [ 23062.652] -- Configure bugmail: https://bugzilla.novell.com/userprefs.cgi?tab=email ------- You are receiving this mail because: ------- You are on the CC list for the bug.