Xorg crashes when maximizing/resizing windows in openbox

[Janis Petersons]

After running openbox for a random amount of time (usually a few hours) window resizing and maximizing will cause Xorg to crash with a segmentation fault. Relaunching Xorg no longer causes behaviour until a few hours later. Tested on both standalone openbox and LXDE, precise and quantal.

ProblemType: Bug
DistroRelease: Ubuntu 12.04
Package: xserver-xorg 1:7.6+12ubuntu2
ProcVersionSignature: Ubuntu 3.2.0-40.64-generic 3.2.40
Uname: Linux 3.2.0-40-generic x86_64
NonfreeKernelModules: fglrx
ApportVersion: 2.0.1-0ubuntu17.1
Architecture: amd64
Date: Wed Apr 3 16:48:08 2013
InstallationMedia: Kubuntu 12.04.1 LTS "Precise Pangolin" - Release amd64 (20120820.1)
MarkForUpload: True
SourcePackage: xorg
UpgradeStatus: Upgraded to precise on 2013-03-29 (5 days ago)

[Launchpad Janitor (janitor)]

Status changed to 'Confirmed' because the bug affects multiple users.

[Ari (ari-lp)]

I can confirm this bug on Ubuntu 12.04.3 LTS with openbox 3.5.0-7 installed.

For me this bug is most often triggered either by resizing a window or expanding the list view in Synapse launcher.

Attached to this comment are 4 Xorg backtraces.

[Ari (ari-lp)]

Additional information:

$ apt-cache policy xorg
xorg:
  Installed: 1:7.6+12ubuntu2
  Candidate: 1:7.6+12ubuntu2

$ apt-cache policy openbox
openbox:
  Installed: 3.5.0-7~precise
  Candidate: 3.5.0-7~precise

$ lsb_release -rd
Description: Ubuntu 12.04.3 LTS
Release: 12.04

$ uname -a
Linux UBN 3.5.0-39-generic #60~precise1-Ubuntu SMP Wed Aug 14 15:38:41 UTC 2013 x86_64 x86_64 x86_64 GNU/Linux

$ xrandr -q
Screen 0: minimum 320 x 200, current 3288 x 1080, maximum 3286 x 1920
LVDS connected 1366x768+0+0 (normal left inverted right x axis y axis) 293mm x 164mm
   1366x768 60.0*+
   1360x768 60.0
   1280x768 60.0
   1280x720 60.0
   1024x768 60.0
   1024x600 60.0
   800x600 60.0
   800x480 60.0
   640x480 60.0
DFP1 connected 1920x1080+1368+0 (normal left inverted right x axis y axis) 478mm x 269mm
   1920x1080 60.0*+
   1680x1050 60.0
   1400x1050 60.0
   1600x900 60.0
   1280x1024 60.0 75.0
   1440x900 75.0 59.9
   1280x960 60.0
   1280x800 59.8
   1152x864 60.0 75.0
   1280x768 59.8
   1280x720 60.0
   1024x768 75.0 70.1 60.0
   1024x600 75.0 70.1 60.0
   800x600 72.2 75.0 60.3 56.2
   800x480 72.2 75.0 60.3 56.2
   640x480 75.0 72.8 67.0 59.9
CRT1 disconnected (normal left inverted right x axis y axis)

$ apt-cache policy fglrx
fglrx:
  Installed: 2:9.012-0ubuntu1
  Candidate: 2:9.012-0ubuntu1

Please let me if there is anything else I can provide.

[Ari (ari-lp)]

Janis, any chance you have been able to find a workaround/fix in the meantime? The crashes have gotten more frequent for me and it's now at a point where I am considering dropping Synapse for good (which I would hate to do).

I tried uploading my stack traces to launchpad but unfortunately apport didn't give me the option to add them to an existing bug report so I had to open a new one:

https://bugs.launchpad.net/synapse-project/+bug/1236922

[Ari (ari-lp)]

On a second thought, this bug is likely unrelated to the one I am experiencing. I don't have any crashes with applications other than Synapse and your problem seems to be identical to the one described in the following bug reports:

https://bugs.launchpad.net/ubuntu/+source/openbox/+bug/997212
https://bugzilla.icculus.org/show_bug.cgi?id=5460

Please note that the bug has been fixed in the latest openbox releases.

I hope this helps.

[penalvch (penalvch)]

Janis Petersons, this bug was reported a while ago and there hasn't been any activity in it recently. We were wondering if this is still an issue? If so, could you please test for this with the latest development release of Ubuntu? ISO images are available from http://cdimage.ubuntu.com/daily-live/current/ .

If it remains an issue, could you please run the following command in the development release from a Terminal (Applications->Accessories->Terminal), as it will automatically gather and attach updated debug information to this report:

apport-collect -p xorg-server REPLACE-WITH-BUG-NUMBER

Please note, given that the information from the prior release is already available, doing this on a release prior to the development one would not be helpful.

Thank you for your understanding.

Helpful bug reporting tips:
https://wiki.ubuntu.com/ReportingBugs

[Paul White (paulw2u)]

Ubuntu 12.10 (quantal) reached end-of-life on May 16, 2014.
Ubuntu 12.04 (precise) reached end-of-life on April 28, 2017.

This issue has sat incomplete for over eight years now but may
well have been fixed in 'openbox' rather than 'xorg-server'

Closing as 'Invalid' as there was no reply to comment #9.