[Bug 955410] Re: Segmentation Fault in nv50_screen_fence_update

Timo Aaltonen tjaalton at ubuntu.com
Tue Mar 27 10:18:12 UTC 2012 

This is fixed in precise, which has mesa 8.0.2. Backporting fixes like
this is less of a priority though, since the release of 12.04 is so
close.

** Changed in: mesa (Ubuntu)
       Status: New => Fix Released

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Title:
  Segmentation Fault in nv50_screen_fence_update

Status in Mesa:
  Fix Released
Status in “mesa” package in Ubuntu:
  Fix Released

Bug description:
  Per the upstream bug report
  (https://bugs.freedesktop.org/show_bug.cgi?id=47306), 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

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