osgviewerQt crashes on startup

Bug #1198806 reported by Thomas Bleher
12
This bug affects 2 people
Affects Status Importance Assigned to Milestone
openscenegraph (Ubuntu)
Confirmed
Undecided
Unassigned
qt4-x11 (Ubuntu)
Confirmed
Undecided
Unassigned

Bug Description

When starting osgviewerQt from the openscenegraph package crashes on startup:

$ osgviewerQt
[xcb] Unknown request in queue while dequeuing
[xcb] Most likely this is a multi-threaded client and XInitThreads has not been called
[xcb] Aborting, sorry about that.
osgviewerQt: ../../src/xcb_io.c:179: dequeue_pending_request: Assertion `!xcb_xlib_unknown_req_in_deq' failed.

Workaround: adding XInitThreads() at the start of main() avoids this problem, but upstream do not consider this a proper fix.

Tags: saucy upstream
Revision history for this message
Hans Joachim Desserud (hjd) wrote :

Thanks for taking your time to report this issue and help making Ubuntu better.

You don't specify which Ubuntu release you are running, but n openscenegraph 3.0.1-4.1 on Ubuntu Saucy I get the following error message:
$ osgviewerQt
The program 'osgviewerQt' received an X Window System error.
This probably reflects a bug in the program.
The error was 'BadRequest (invalid request code or no such operation)'.
  (Details: serial 697 error_code 1 request_code 153 minor_code 51)
  (Note to programmers: normally, X errors are reported asynchronously;
   that is, you will receive the error a while after causing it.
   To debug your program, run it with the --sync command line
   option to change this behavior. You can then get a meaningful
   backtrace from your debugger if you break on the gdk_x_error() function.)

I realize this is not the same error message, but they both indicate an unknown/invalid X-request, so I find it likely they are related.

Changed in openscenegraph (Ubuntu):
status: New → Confirmed
tags: added: saucy
Revision history for this message
Rebecca Palmer (rebecca-palmer) wrote :
tags: added: upstream
Revision history for this message
Rebecca Palmer (rebecca-palmer) wrote :
description: updated
Revision history for this message
Launchpad Janitor (janitor) wrote :

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

Changed in qt4-x11 (Ubuntu):
status: New → Confirmed
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