Public bug reported: Per the upstream bug report, I am getting a segfault in mesa:
#0 nouveau_fence_update (screen=0x0, flushed=1 '\001') at nouveau_fence.c:141 fence = <optimized out> next = 0x0 sequence = <optimized out> #1 0xaae1ec77 in nv50_default_flush_notify (chan=0x8f29af0) at nv50_context.c:68 nv50 = 0xa8248c68 #2 0xad19ff50 in nouveau_pushbuf_flush () from /usr/lib/i386-linux-gnu/libdrm_nouveau.so.1 No symbol table info available. #3 0xaae1ec0e in FIRE_RING (chan=<optimized out>) at /usr/include/nouveau/nouveau_pushbuf.h:101 No locals. #4 nv50_flush (pipe=0x8f53028, fence=0x0) at nv50_context.c:46 screen = 0x8f29810 #5 0xaa974561 in st_flush (st=0x9001c60, fence=0x0) at state_tracker/st_cb_flush.c:92 No locals. #6 0xaa9745a0 in st_glFlush (ctx=0x8fc0678) at state_tracker/st_cb_flush.c:126 st = 0x9001c60 #7 0xaabb34b0 in _mesa_flush (ctx=0x8fc0678) at main/context.c:1656 No locals. #8 0xaabb3bce in _mesa_Flush () at main/context.c:1688 ctx = 0x8fc0678 #9 0xb6af9899 in MythRenderOpenGL::Flush(bool) () from /usr/lib/libmythui-0.25.so.0 No symbol table info available. #10 0xb6b01d1a in MythRenderOpenGL::CreateTexture(QSize, bool, unsigned int, unsigned int, unsigned int, unsigned int, unsigned int, unsigned int) () from /usr/lib/libmythui-0.25.so.0 No symbol table info available. #11 0xb6af78f3 in MythOpenGLPainter::GetTextureFromCache(MythImage*) () from /usr/lib/libmythui-0.25.so.0 No symbol table info available. #12 0xb6af7da8 in MythOpenGLPainter::DrawImage(QRect const&, MythImage*, QRect const&, int) () from /usr/lib/libmythui-0.25.so.0 No symbol table info available. #13 0xb6a03a6f in MythUIImage::DrawSelf(MythPainter*, int, int, int, QRect) () from /usr/lib/libmythui-0.25.so.0 No symbol table info available. #14 0xb69fd0e4 in MythUIType::Draw(MythPainter*, int, int, int, QRect) () from /usr/lib/libmythui-0.25.so.0 No symbol table info available. #15 0xb69fd180 in MythUIType::Draw(MythPainter*, int, int, int, QRect) () from /usr/lib/libmythui-0.25.so.0 No symbol table info available. #16 0xb69bb068 in MythMainWindow::draw() () from /usr/lib/libmythui-0.25.so.0 No symbol table info available. #17 0xb69bb6f8 in MythMainWindow::drawScreen() () from /usr/lib/libmythui-0.25.so.0 No symbol table info available. #18 0xb69bb8bb in ?? () from /usr/lib/libmythui-0.25.so.0 No symbol table info available. #19 0xb5b1cf6e in QWidget::event(QEvent*) () from /usr/lib/i386-linux-gnu/libQtGui.so.4 No symbol table info available. #20 0xb235dfe2 in QGLWidget::event(QEvent*) () from /usr/lib/i386-linux-gnu/libQtOpenGL.so.4 No symbol table info available. #21 0xb5ac2d84 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/i386-linux-gnu/libQtGui.so.4 No symbol table info available. #22 0xb5ac81d8 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/i386-linux-gnu/libQtGui.so.4 No symbol table info available. #23 0xb56f319e in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/i386-linux-gnu/libQtCore.so.4 No symbol table info available. #24 0xb5b19e1b in QWidgetPrivate::drawWidget(QPaintDevice*, QRegion const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () from /usr/lib/i386-linux-gnu/libQtGui.so.4 No symbol table info available. #25 0xb5cfe39e in QWidgetPrivate::repaint_sys(QRegion const&) () from /usr/lib/i386-linux-gnu/libQtGui.so.4 No symbol table info available. #26 0xb5b0f6a0 in QWidgetPrivate::syncBackingStore() () from /usr/lib/i386-linux-gnu/libQtGui.so.4 No symbol table info available. #27 0xb5b1d8ff in QWidget::event(QEvent*) () from /usr/lib/i386-linux-gnu/libQtGui.so.4 No symbol table info available. #28 0xb235dfe2 in QGLWidget::event(QEvent*) () from /usr/lib/i386-linux-gnu/libQtOpenGL.so.4 No symbol table info available. #29 0xb5ac2d84 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/i386-linux-gnu/libQtGui.so.4 No symbol table info available. #30 0xb5ac81d8 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/i386-linux-gnu/libQtGui.so.4 No symbol table info available. #31 0xb56f319e in QCoreApplication::notifyInternal(QObject*, QEvent*) () from /usr/lib/i386-linux-gnu/libQtCore.so.4 No symbol table info available. #32 0xb56f6f93 in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /usr/lib/i386-linux-gnu/libQtCore.so.4 No symbol table info available. #33 0xb56f70ec in QCoreApplication::sendPostedEvents(QObject*, int) () from /usr/lib/i386-linux-gnu/libQtCore.so.4 No symbol table info available. #34 0xb57216a4 in ?? () from /usr/lib/i386-linux-gnu/libQtCore.so.4 No symbol table info available. #35 0xb219725f in g_main_dispatch (context=0x8db7e70) at /build/buildd/glib2.0-2.30.0/./glib/gmain.c:2441 dispatch = 0xb5721670 was_in_call = 0 user_data = 0x0 callback = 0 cb_funcs = 0x0 cb_data = 0x0 current_source_link = {data = 0x8db7f00, next = 0x0} need_destroy = <optimized out> source = 0x8db7f00 current = 0x8db7410 i = <optimized out> #36 g_main_context_dispatch (context=0x8db7e70) at /build/buildd/glib2.0-2.30.0/./glib/gmain.c:3011 No locals. #37 0xb2197990 in g_main_context_iterate (context=0x8db7e70, block=-1306893536, dispatch=1, self=<optimized out>) at /build/buildd/glib2.0-2.30.0/./glib/gmain.c:3089 max_priority = 0 timeout = 0 some_ready = 1 nfds = <optimized out> allocated_nfds = <optimized out> fds = 0xa8247fc8 #38 0xb2197c2a in g_main_context_iteration (context=0x8db7e70, may_block=0) at /build/buildd/glib2.0-2.30.0/./glib/gmain.c:3152 retval = <optimized out> #39 0xb5721ada in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/i386-linux-gnu/libQtCore.so.4 No symbol table info available. #40 0xb5b7ae7a in ?? () from /usr/lib/i386-linux-gnu/libQtGui.so.4 No symbol table info available. #41 0xb56f7383 in QCoreApplication::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/i386-linux-gnu/libQtCore.so.4 No symbol table info available. #42 0xb6c0c1c8 in MythSystem::Wait(long) () from /usr/lib/libmythbase-0.25.so.0 No symbol table info available. #43 0xb6c113b9 in myth_system(QString const&, unsigned int, unsigned int) () from /usr/lib/libmythbase-0.25.so.0 No symbol table info available. #44 0xb6c67561 in ping(QString const&, int) () from /usr/lib/libmythbase-0.25.so.0 No symbol table info available. #45 0xb6c706bc in setHttpProxy() () from /usr/lib/libmythbase-0.25.so.0 No symbol table info available. #46 0x0806d527 in ?? () No symbol table info available. #47 0xb531f113 in __libc_start_main (main=0x806c160, argc=1, ubp_av=0xbfec5314, init=0x829c060, fini=0x829c0d0, rtld_fini=0xb77deba0, stack_end=0xbfec530c) at libc-start.c:226 result = <optimized out> unwind_buf = {cancel_jmp_buf = {{jmp_buf = {-1253572620, 0, 0, 0, 632443622, -1627982093}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x1, 0x806fe74}, data = {prev = 0x0, cleanup = 0x0, canceltype = 1}}} not_first_call = <optimized out> #48 0x0806fe95 in ?? () No symbol table info available. Backtrace stopped: Not enough registers or memory available to unwind further This is fixed in https://bugs.freedesktop.org/show_bug.cgi?id=43428. Can we have this patch applied for Oneiric please. ProblemType: Bug DistroRelease: LinuxMint 12 Package: libgl1-mesa-glx 7.11-0ubuntu3 ProcVersionSignature: Ubuntu 3.0.0-16.28-generic-pae 3.0.17 Uname: Linux 3.0.0-16-generic-pae i686 .tmp.unity.support.test.0: ApportVersion: 1.23-0ubuntu4 Architecture: i386 CompizPlugins: [core,bailer,detection,composite,opengl,compiztoolbox,decor,grid,imgpng,gnomecompat,vpswitch,snap,mousepoll,unitymtgrabhandles,move,place,regex,resize,animation,expo,wall,session,ezoom,workarounds,fade,scale,unityshell] CompositorRunning: None Date: Wed Mar 14 15:51:19 2012 DistUpgraded: Starting DistroCodename: lisa DistroVariant: ubuntu ExtraDebuggingInterest: Yes, whatever it takes to get this fixed in Ubuntu GraphicsCard: nVidia Corporation G98 [GeForce 8400 GS] [10de:06e4] (rev a1) (prog-if 00 [VGA controller]) Subsystem: ASUSTeK Computer Inc. Device [1043:8266] MachineType: System manufacturer System Product Name ProcEnviron: PATH=(custom, user) LANG=en_CA.UTF-8 SHELL=/bin/bash ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-3.0.0-16-generic-pae root=/dev/mapper/rootvol-ubuntu_root ro console=ttyS0,115200 console=tty0 crashkernel=384M-2G:64M,2G-:128M vt.handoff=7 SourcePackage: mesa UpgradeStatus: Upgraded to lisa on 2007-04-05 (1805 days ago) dmi.bios.date: 03/26/2008 dmi.bios.vendor: American Megatrends Inc. dmi.bios.version: 0503 dmi.board.asset.tag: To Be Filled By O.E.M. dmi.board.name: M2N-MX SE Plus dmi.board.vendor: ASUSTeK Computer INC. dmi.board.version: Rev x.xx dmi.chassis.asset.tag: Asset-1234567890 dmi.chassis.type: 3 dmi.chassis.vendor: Chassis Manufacture dmi.chassis.version: Chassis Version dmi.modalias: dmi:bvnAmericanMegatrendsInc.:bvr0503:bd03/26/2008:svnSystemmanufacturer:pnSystemProductName:pvrSystemVersion:rvnASUSTeKComputerINC.:rnM2N-MXSEPlus:rvrRevx.xx:cvnChassisManufacture:ct3:cvrChassisVersion: dmi.product.name: System Product Name dmi.product.version: System Version dmi.sys.vendor: System manufacturer version.compiz: compiz 1:0.9.6+bzr20110929-0ubuntu6.1 version.libdrm2: libdrm2 2.4.26-1ubuntu1 version.libgl1-mesa-dri: libgl1-mesa-dri 7.11-0ubuntu3 version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A version.libgl1-mesa-glx: libgl1-mesa-glx 7.11-0ubuntu3 version.xserver-xorg: xserver-xorg 1:7.6+7ubuntu7.1 version.xserver-xorg-input-evdev: xserver-xorg-input-evdev 1:2.6.0-1ubuntu13 version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:6.14.99~git20110811.g93fc084-0ubuntu1 version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.15.901-1ubuntu2.1 version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:0.0.16+git20110411+8378443-1 ** Affects: mesa (Ubuntu) Importance: Undecided Status: New ** Tags: apport-bug i386 lisa ubuntu -- You received this bug notification because you are a member of Ubuntu Bugs, which is subscribed to Ubuntu. https://bugs.launchpad.net/bugs/955410 Title: Segmentation Fault in nv50_screen_fence_update To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/mesa/+bug/955410/+subscriptions -- ubuntu-bugs mailing list ubuntu-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/ubuntu-bugs