compiz crashed with SIGSEGV in _IceTransClose()

[Alex Orzheshkovsky]

Binary package hint: compiz

compiz crashed with SIGSEGV in _IceTransClose()

ProblemType: Crash
DistroRelease: Ubuntu 11.04
Package: compiz-core 1:0.9.4git20110322-0ubuntu5
ProcVersionSignature: Ubuntu 2.6.38-8.41-generic 2.6.38.2
Uname: Linux 2.6.38-8-generic i686
Architecture: i386
CompizPlugins: [core,bailer,detection,composite,opengl,decor,regex,imgpng,grid,resize,unitymtgrabhandles,compiztoolbox,animation,move,vpswitch,mousepoll,place,gnomecompat,workarounds,wall,session,wobbly,expo,ezoom,staticswitcher,fade,scale,unityshell]
CompositorRunning: compiz
CrashCounter: 1
DRM.card0.DP.1:
 status: disconnected
 enabled: disabled
 dpms: Off
 modes:
 edid-base64:
DRM.card0.DP.2:
 status: disconnected
 enabled: disabled
 dpms: Off
 modes:
 edid-base64:
DRM.card0.HDMI.A.1:
 status: disconnected
 enabled: disabled
 dpms: Off
 modes:
 edid-base64:
DRM.card0.LVDS.1:
 status: connected
 enabled: enabled
 dpms: On
 modes: 1366x768 1366x768
 edid-base64: AP///////wAwrrBAAAAAAAATAQOAIhN46siVnldUkiYPUFQAAAABAQEBAQEBAQEBAQEBAQEBQRxWoFAAFjAwICUAWMIQAAAZyRZWoFAAFjAwICUAWMIQAAAZAAAADwCMCTKMCSgWCQBMo0FUAAAA/gBMVE4xNTZBVDAyTDAxAMM=
DRM.card0.VGA.1:
 status: disconnected
 enabled: disabled
 dpms: Off
 modes:
 edid-base64:
Date: Thu Apr 7 23:59:19 2011
DistUpgraded: Fresh install
DistroCodename: natty
DistroVariant: ubuntu
ExecutablePath: /usr/bin/compiz
GraphicsCard:
 Intel Corporation Mobile 4 Series Chipset Integrated Graphics Controller [8086:2a42] (rev 09) (prog-if 00 [VGA controller])
   Subsystem: Lenovo Device [17aa:3a02]
   Subsystem: Lenovo Device [17aa:3a02]
InstallationMedia: Ubuntu 11.04 "Natty Narwhal" - Beta 1 i386 (20110329.1)
InstallationMedia_: Ubuntu 11.04 "Natty Narwhal" - Beta 1 i386 (20110329.1)
MachineType: LENOVO 20023
ProcCmdline: compiz
ProcEnviron:
 LANGUAGE=ru_UA:en
 LANG=ru_UA.UTF-8
 SHELL=/bin/bash
ProcKernelCmdLine: BOOT_IMAGE=/boot/vmlinuz-2.6.38-8-generic root=UUID=f9c28774-e039-4060-8f27-568960054b7a ro quiet splash vt.handoff=7
ProcVersionSignature_: Ubuntu 2.6.38-8.41-generic 2.6.38.2
Renderer: Unknown
SegvAnalysis:
 Segfault happened at: 0xe7a3ad <_IceTransClose+29>: mov (%esi),%eax
 PC (0x00e7a3ad) ok
 source "(%esi)" (0x65442e6c) not located in a known VMA region (needed readable region)!
 destination "%eax" ok
SegvReason: reading unknown VMA
Signal: 11
SourcePackage: compiz
StacktraceTop:
 _IceTransClose () from /usr/lib/i386-linux-gnu/libICE.so.6
 _IceFreeConnection () from /usr/lib/i386-linux-gnu/libICE.so.6
 IceCloseConnection () from /usr/lib/i386-linux-gnu/libICE.so.6
 ?? ()
 boost::detail::function::void_function_obj_invoker1<boost::_bi::bind_t<bool, bool (*)(_IceConn*), boost::_bi::list1<boost::_bi::value<_IceConn*> > >, void, short>::invoke(boost::detail::function::function_buffer&, short) ()
Title: compiz crashed with SIGSEGV in _IceTransClose()
UpgradeStatus: No upgrade log present (probably fresh install)
UserGroups: adm admin cdrom dialout lpadmin plugdev sambashare
XsessionErrors:
 (nautilus:1192): GConf-CRITICAL **: gconf_value_free: assertion `value != NULL' failed
 (<unknown>:1182): libindicator-WARNING **: Shortcut Group does not have key 'TargetEnvironment' falling back to deprecated use of 'OnlyShowIn' and 'NotShowIn'.
 (<unknown>:1240): libindicator-WARNING **: Shortcut Group does not have key 'TargetEnvironment' falling back to deprecated use of 'OnlyShowIn' and 'NotShowIn'.
dmi.bios.date: 04/19/2010
dmi.bios.vendor: LENOVO
dmi.bios.version: 18CN44WW(V2.53)
dmi.board.name: NITU1
dmi.board.vendor: LENOVO
dmi.board.version: REFERENCE
dmi.chassis.asset.tag: No Asset Tag
dmi.chassis.type: 10
dmi.chassis.vendor: No Enclosure
dmi.chassis.version: N/A
dmi.modalias: dmi:bvnLENOVO:bvr18CN44WW(V2.53):bd04/19/2010:svnLENOVO:pn20023:pvrLenovoG550:rvnLENOVO:rnNITU1:rvrREFERENCE:cvnNoEnclosure:ct10:cvrN/A:
dmi.product.name: 20023
dmi.product.version: Lenovo G550
dmi.sys.vendor: LENOVO
version.compiz: compiz 1:0.9.4git20110322-0ubuntu5
version.libdrm2: libdrm2 2.4.23-1ubuntu6
version.libgl1-mesa-dri: libgl1-mesa-dri 7.10.1-0ubuntu3
version.libgl1-mesa-dri-experimental: libgl1-mesa-dri-experimental N/A
version.libgl1-mesa-glx: libgl1-mesa-glx 7.10.1-0ubuntu3
version.xserver-xorg: xserver-xorg 1:7.6+4ubuntu3
version.xserver-xorg-video-ati: xserver-xorg-video-ati 1:6.14.0-0ubuntu4
version.xserver-xorg-video-intel: xserver-xorg-video-intel 2:2.14.0-4ubuntu6
version.xserver-xorg-video-nouveau: xserver-xorg-video-nouveau 1:0.0.16+git20110107+b795ca6e-0ubuntu6

[Apport retracing service (apport)]

StacktraceTop:
 _IceTransClose (ciptr=0x65442e6c) at /usr/include/X11/Xtrans/Xtrans.c:928
 _IceFreeConnection (iceConn=0x8fc2838) at ../../src/shutdown.c:283
 IceCloseConnection (iceConn=0x8fc2838) at ../../src/shutdown.c:127
 __static_initialization_and_destruction_0 () at /build/buildd/compiz-0.9.4+bzr20110407/src/plugin.cpp:43
 global constructors keyed to pluginsMap() () at /build/buildd/compiz-0.9.4+bzr20110407/src/plugin.cpp:701

[Marnanel Thurman (marnanel)]

The crash was at Xtrans.c:928, which is

    ret = ciptr->transptr->Close (ciptr);

ciptr->transptr appears to have an odd value pointing to an unreadable segment, but one which is not NULL.

[Marnanel Thurman (marnanel)]

Sam suggests that _IceTransClose() may be being called twice.

[Will Cooke (willcooke)]

As part of the big bug clear up for 16.04 LTS I am marking this bug as Wont Fix.
These types of crasher are better handled by errors.ubutnu.com which can collate similar crash reports to help us identify persitent bugs rather than one-off crashes.
Sorry we are not able to help with this specific issue. If you are still experiencing this crash, please re-open the bug and add the tag "desktop-bugscrub-reopened". See https://wiki.ubuntu.com/BigDesktopBugScrub for more information.