This or very similar crash (with the same stuff on top of the stack) appears very frequently with fullscreen windows, when the KWin option "suspend desktop effects for fullscreen windows" is turned on. This is similar to the fixed bug 974041, though that one looks different. The crash is typically trigerred by alt-tabbing from such a fullscreen window (with ~50% chance).
-- You received this bug notification because you are a member of Desktop Packages, which is subscribed to mesa in Ubuntu. https://bugs.launchpad.net/bugs/947544 Title: mesa SIGSEGV in brw_update_renderbuffer_surface() Status in Mesa: Confirmed Status in “mesa” package in Ubuntu: Confirmed Bug description: crash during alt-tab ProblemType: Crash DistroRelease: Ubuntu 12.04 Package: compiz-core 1:0.9.7.0~bzr2995-0ubuntu5 ProcVersionSignature: Ubuntu 3.2.0-17.27-generic 3.2.6 Uname: Linux 3.2.0-17-generic x86_64 .tmp.unity.support.test.0: ApportVersion: 1.94-0ubuntu1 Architecture: amd64 CompizPlugins: [core,detection,composite,opengl,compiztoolbox,switcher,imgjpeg,maximumize,decor,grid,text,mousepoll,wall,thumbnail,move,imgpng,imgsvg,wobbly,fadedesktop,regex,resize,gnomecompat,place,notification,session,animation,workarounds,fade,winrules,expo,resizeinfo,animationaddon,trailfocus,scale,scalefilter,group,scaleaddon] CompositorRunning: compiz CrashCounter: 1 Date: Mon Mar 5 14:58:43 2012 DistUpgraded: Log time: 2011-10-21 20:21:41.774290 DistroCodename: precise DistroVariant: ubuntu DkmsStatus: virtualbox, 4.1.8, 3.0.0-16-generic, x86_64: installed virtualbox, 4.1.8, 3.2.0-17-generic, x86_64: installed ExecutablePath: /usr/bin/compiz GraphicsCard: Intel Corporation Mobile GM965/GL960 Integrated Graphics Controller (primary) [8086:2a02] (rev 0c) (prog-if 00 [VGA controller]) Subsystem: Dell Latitude D630 [1028:01f9] Subsystem: Dell Device [1028:01f9] MachineType: Dell Inc. Latitude D630 PccardctlIdent: Socket 0: no product info available PccardctlStatus: Socket 0: no card ProcCmdline: /usr/bin/compiz ProcEnviron: PATH=(custom, no user) LANG=en_US.UTF-8 SHELL=/bin/bash ProcKernelCmdLine: root=UUID=2901cb8b-2558-464e-8c80-ce031718503a ro quiet splash crashkernel=384M-2G:64M,2G-:128M SegvAnalysis: Segfault happened at: 0x7f9cb2c9bf5e: mov 0x218(%rax),%rbp PC (0x7f9cb2c9bf5e) ok source "0x218(%rax)" (0x00000218) not located in a known VMA region (needed readable region)! destination "%rbp" ok SegvReason: reading NULL VMA Signal: 11 SourcePackage: compiz StacktraceTop: ?? () from /usr/lib/x86_64-linux-gnu/dri/i965_dri.so ?? () from /usr/lib/x86_64-linux-gnu/dri/i965_dri.so brw_upload_state () from /usr/lib/x86_64-linux-gnu/dri/i965_dri.so brw_draw_prims () from /usr/lib/x86_64-linux-gnu/dri/i965_dri.so ?? () from /usr/lib/x86_64-linux-gnu/dri/libdricore.so Title: compiz crashed with SIGSEGV in brw_upload_state() UpgradeStatus: Upgraded to precise on 2011-10-22 (135 days ago) UserGroups: adm admin audio cdrom dialout dip floppy fuse lpadmin mythtv plugdev sambashare video dmi.bios.date: 01/04/2010 dmi.bios.vendor: Dell Inc. dmi.bios.version: A17 dmi.board.name: 0KU184 dmi.board.vendor: Dell Inc. dmi.chassis.type: 8 dmi.chassis.vendor: Dell Inc. dmi.modalias: dmi:bvnDellInc.:bvrA17:bd01/04/2010:svnDellInc.:pnLatitudeD630:pvr:rvnDellInc.:rn0KU184:rvr:cvnDellInc.:ct8:cvr: dmi.product.name: Latitude D630 dmi.sys.vendor: Dell Inc. version.compiz: compiz 1:0.9.7.0~bzr2995-0ubuntu5 version.ia32-libs: ia32-libs 20090808ubuntu33 version.libdrm2: libdrm2 2.4.30-1ubuntu1 version.libgl1-mesa-dri: libgl1-mesa-dri 8.0.1-0ubuntu2 version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx 8.0.1-0ubuntu2 version.xserver-xorg-core: xserver-xorg-core 2:1.11.4-0ubuntu4 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.6.99.901+git20120126-0ubuntu2 version.xserver-xorg-video-ati: xserver-xorg-video-ati N/A version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.17.0-1ubuntu4 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:0.0.16+git20111201+b5534a1-1build2 To manage notifications about this bug go to: https://bugs.launchpad.net/mesa/+bug/947544/+subscriptions -- Mailing list: https://launchpad.net/~desktop-packages Post to : desktop-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~desktop-packages More help : https://help.launchpad.net/ListHelp
