compiz.real crashed with SIGSEGV in paintOutput()

[Andy Duffell]

Binary package hint: compiz

Happened when switching back to my account after using the guest account. Unlike other similar-sounding bugs, the guest account itself worked fine.

ProblemType: Crash
Architecture: amd64
Disassembly: 0x0:
DistroRelease: Ubuntu 8.10
ExecutablePath: /usr/bin/compiz.real
NonfreeKernelModules: nvidia
Package: compiz-core 1:0.7.8-0ubuntu4
ProcAttrCurrent: /usr/share/gdm/guest-session/Xsession (enforce)
ProcCmdline: /usr/bin/compiz.real --ignore-desktop-hints --replace --loose-binding core ccp
ProcEnviron:
 PATH=/usr/local/sbin:/usr/local/bin:/usr/sbin:/usr/bin:/sbin:/bin:/usr/games
 LANG=en_GB.UTF-8
 SHELL=/bin/bash
Signal: 11
SourcePackage: compiz
StacktraceTop:
 ?? ()
 ?? () from /usr/lib/libGLcore.so.1
 ?? ()
 paintOutput ()
 paintScreen ()
Title: compiz.real crashed with SIGSEGV in paintOutput()
Uname: Linux 2.6.27-7-generic x86_64
UserGroups:

[Andy Duffell (andy-duffell)]

Fault is reproducable, btw. I'm only getting this for the guest account, using the fast user switcher to other accounts is working fine.

[Apport retracing service (apport)]

StacktraceTop:?? ()
?? () from /usr/lib/libGLcore.so.1
paintOutputRegion (screen=0x134d4e0, transform=0x7fff7ce6db90, region=0x13fd240,
paintOutput (screen=0x134d4e0, sAttrib=<value optimized out>,
paintScreen (s=0x134d4e0, outputs=<value optimized out>, numOutput=1,

[Pedro Villavicencio (pedro)]

Thanks for your bug report. Please try to obtain a backtrace http://wiki.ubuntu.com/DebuggingProgramCrash and attach the file to the bug report. This will greatly help us in tracking down your problem.

[Martin Mai (mrkanister-deactivatedaccount-deactivatedaccount)]

 We are closing this bug report because it lacks the information we need to investigate the problem, as described in the previous comments. Please reopen it if you can give us the missing information, and don't hesitate to submit bug reports in the future. To reopen the bug report you can click on the current status, under the Status column, and change the Status back to "New". Thanks again!

[Mike Sandman (n8behavior)]

Ditto for me. Guest session worked fine. Also my previous session was still intact after returning from guest session--existing programs were still running fine. i will try to get you a backtrace. if successful i will reopen the ticket and provide more testing info.

$ lsb_release -a
No LSB modules are available.
Distributor ID: Ubuntu
Description: Ubuntu karmic (development branch)
Release: 9.10
Codename: karmic

[Mike Sandman (n8behavior)]

well, i tried to get a backtrace using gdb but after i attach to compiz.real (it's pid anyway) and tried to continue, gdb says "Continuing." but never returns the prompt. here is exactly what i typed

$ gdb 2>&1 | tee gdb-compiz.real.txt
(gdb) handle SIG33 pass nostop noprint
(gdb) set pagination 0
(gdb) attach 6069
(gdb) continue
[hangs here and never returns]

so not sure what to do there. anyhow, since i install the debug symbol packages for compiz, i don't get this crash report any more. so, i'll still leave this closed and see how it goes.

[3Dman (3dman)]

Happened with me while using the Guest account also. Using Nvidia GTS 250 card.

[Fabio Marconi (fabiomarconi)]

Hello
is this problem present with the latest updates ?
Thanks
Fabio

[Launchpad Janitor (janitor)]

[Expired for compiz (Ubuntu) because there has been no activity for 60 days.]