Crash changing TTY (paintOutput)

[Niels Egberts]

Binary package hint: compiz

I was trying to use the guest account option in Intrepid for the first time. It loaded the guest-account background but gnome would not load. I went back with ctrl-alt-f9 to my dekstop and then this message appeared, I needed to run it with admin rights. Compiz fusion with all the effects kept on working.

ProblemType: Crash
Architecture: amd64
Disassembly: 0x0:
DistroRelease: Ubuntu 8.10
ExecutablePath: /usr/bin/compiz.real
NonfreeKernelModules: nvidia
Package: compiz-core 1:0.7.7+git20080807-0ubuntu6
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=nl_NL.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 2.6.27-2-generic x86_64
UserGroups:

[Apport retracing service (apport)]

StacktraceTop:?? ()
?? () from /usr/lib/libGLcore.so.1
paintOutputRegion (screen=0x19247d0, transform=0x7fffe51cff40, region=0x1a218b0,
paintOutput (screen=0x19247d0, sAttrib=<value optimized out>,
paintScreen (s=0x19247d0, 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.

[Hew (hew)]

This problem is reproducible by using compiz and attempting to switch to a guest session. The welcome music and wallpaper appear, but the gnome-panels do not. The command line can be accessed with Alt-F2. Ctrl-Alt-Bksp kills the guest session and returns back to the original (locked) session.

I have tried to obtain a backtrace, but as soon as I attach gdb to compiz.real, my whole system freezes (except the mouse cursor). Even Alt-Sysrq-K doesn't work. Any ideas on how I can obtain a backtrace are appreciated.

[Adam Petaccia (mighmos)]

I also have this issue, 100% reproducable.

[Alexander Jones (alex-weej)]

Hew, attach it to GDB from another terminal, like from a TTY VT
(Ctrl+Alt+F1..6). Once you have attached, the program is interrupted,
which means it can't paint or send any events to anything. You just
need to enter "c" (continue) in GDB to resume it. From there, you can
get debugging once it crashes.

If you do it in "Screen", you can restart Compiz/Metacity and carry on
working in an X terminal.

[Hew (hew)]

Thanks for your help. I used Ctrl+Alt+F1 to run gdb, found the pid of compiz.real and attached it, and typed continue. I switched back to Ctrl+Alt+F7 and attempted to reproduce the problem.

With the upload of the new intrepid theme, it looks like the freezing part of the problem has been solved. The gnome-panels load and the session runs just fine. I switched back to gdb and it still hadn't caught anything. I switched to X and logged in as myself (with compiz) and apport was in the notification area telling me about the compiz.real crash. I checked the pid and it was still running.

What's going on? Am I attaching gdb to the right thing?

[Lambros Lambrou (lambros)]

I have this exact same bug in Intrepid and it's reproducible every time. In my case, I don't use Compiz (Desktop Effects) on my regular account, because it interferes with 3D gaming. But I have the proprietary nVidia driver installed, so I assume that, when I start up the Guest session, it defaults to switching on Desktop Effects and therefore starts compiz.

From the Alt-F2 screen, I can run gnome-terminal. Doing "killall gnome-panel" gives me the panels back. And "killall nautilus" restores the ability to get a right-click menu on the desktop.

[gali98 (korylp)]

Same exact thing as above. When I started the guest session, it got stuck at showing the desktop background (no toolbars came up) so I pressed ctrl+alt+backspace to restart X. When I logged back into my other session, it showed the bug.
Kory

[electhor (electhor)]

I ditto the above, however my monitor was completely black, no background at all.

[Travis Watkins (amaranth)]

Moving to nvidia driver since everyone having this problem is using nvidia and the crash occurs inside nvidia's libGL.

[KJ (kunjin-md)]

Thanks. I am very new to this group. What does that mean? Is the problem fixed? How can now do to my machine?

Best,

Kun

--- On Tue, 9/15/09, Travis Watkins <email address hidden> wrote:

> From: Travis Watkins <email address hidden>
> Subject: [Bug 269120] Re: Crash changing TTY (paintOutput)
> To: <email address hidden>
> Date: Tuesday, September 15, 2009, 3:03 PM
> Moving to nvidia driver since
> everyone having this problem is using
> nvidia and the crash occurs inside nvidia's libGL.
>
> ** Package changed: compiz (Ubuntu) =>
> linux-restricted-modules-2.6.24
> (Ubuntu)
>
> --
> Crash changing TTY (paintOutput)
> https://bugs.launchpad.net/bugs/269120
> You received this bug notification because you are a direct
> subscriber
> of a duplicate bug.
>
> Status in “linux-restricted-modules-2.6.24” package in
> Ubuntu: Confirmed
>
> Bug description:
> Binary package hint: compiz
>
> I was trying to use the guest account option in Intrepid
> for the first time. It loaded the guest-account background
> but gnome would not load. I went back with ctrl-alt-f9 to my
> dekstop and then this message appeared, I needed to run it
> with admin rights. Compiz fusion with all the effects kept
> on working.
>
> ProblemType: Crash
> Architecture: amd64
> Disassembly: 0x0:
> DistroRelease: Ubuntu 8.10
> ExecutablePath: /usr/bin/compiz.real
> NonfreeKernelModules: nvidia
> Package: compiz-core 1:0.7.7+git20080807-0ubuntu6
> 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=nl_NL.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 2.6.27-2-generic x86_64
> UserGroups:
>

[Bryce Harrington (bryce)]

Thank you for reporting this issue about a driver from the
linux-restricted-modules package. lrm-2.4.24 was shipped with Ubuntu
8.04 which reached end-of-life for desktop support on May 12th, 2011.

For that reason, this bug report is being closed at this time. I'm
marking it wontfix because what you describe is probably a valid issue,
but there are no plans to work on lrm 2.4.24 bugs further.

The issue may be resolved in a newer version. If not, aside from filing
a new bug report, another angle may be to file it directly with the
driver vendor.