bugDDD - Bugs: bug #28247, If you work in the Data Window the...


bug #28247: If you work in the Data Window the System crashes

Submitted by:  hans loeffel <hans_loeffel>
Submitted on:  Thu 10 Dec 2009 12:32:50 PM UTC  
Category:  Data display Severity:  3 - Normal
Item Group:  None Status:  None
Privacy:  Public Assigned to:  None
Open/Closed:  Open Release:  None

Add a New Comment(Rich Markup)

You are not logged in

Please log in, so followups can be emailed to you.


( Jump to the original submission)

(Why is this post is considered to be spam? Users may have reported it to be spam or, if it has been recently posted, it may just be waiting for spamchecks to be run.)
Spam content:

inaudible as well as mushy. This is most likely due to over-super-powering cheap. Anything that's heavy on the beat isn't probably going to connected with Thanks Giving Diddy Beats
stayreal <stayreal>
  Spam posted by susancai
Thu 13 May 2010 02:37:51 AM UTC, comment #9:

This bug should be marked invalid or similar; I've confirmed that it's a bug in the X server rather than ddd or any library ddd uses; see discussion in the various bugs referenced below, especially the freedesktop.org bug which includes the patch that fixes the problem ("0001-dix-if-owner-events-is-true-for-passive-grabs-add-th.patch").

Stephen Warren <srwarren>
Tue 11 May 2010 05:47:17 PM UTC, comment #8:

The root-cause appears to be http://bugs.freedesktop.org/show_bug.cgi?id=25400. Also see https://bugzilla.redhat.com/show_bug.cgi?id=543647 and https://bugs.gentoo.org/296514.

Stephen Warren <srwarren>
Sat 08 May 2010 04:22:37 AM UTC, comment #7:

Two more experiments:

Same ssh X forwarding test, running the application on F10, but displaying on Ubuntu Karmic instead of Ubuntu Lucid: No repro.

Running on Lucid, but with the nouveau driver instead of proprietary NVIDIA driver: Still repros.

I think F10 and Karmic are X 7.4, but Lucid is X 7.5.

I'll try searching for any X bugs that might cause this...

Stephen Warren <srwarren>
Sat 08 May 2010 03:57:08 AM UTC, comment #6:

I think this may be an X server bug:


Build latest SVN on Ubuntu Lucid: Problem repros

Build latest SVN on Fedora 10: Problem does not repro

I just tested:

Copy ddd binary from Fedora 10 to Ubuntu Lucid: Problem repros

Copy all libraries listed by "ldd ddd" on F10 to Lucid and use LD_LIBRARY_PATH to run the F10 ddd and libraries on Lucid: Problem repros. (note: I skipped copying libc, libgcc_s, libdl, libm, ld-linux.so; it's fairly unlikely those are the cause)

The above all implies there's some environmental condition on Ubuntu Lucid, outside the code being executed, that causes the problem.

Finally, I used "ssh -Y" from the Lucid machine to the F10 machine, and ran ddd on F10 displaying on Lucid's display using ssh X forwarding. The problem repro's here.

The most obvious thing that's common in all those repro steps (especially the last one) is the X server itself.

Stephen Warren <srwarren>
Fri 07 May 2010 08:53:29 PM UTC, comment #5:

Interesting; this problem does not occur on Fedora 10; some environmental thing in Lucid must be triggering it.

Stephen Warren <srwarren>
Fri 07 May 2010 06:27:46 AM UTC, comment #4:

This bug repros with latest SVN on Ubuntu Lucid.

The following is the backtrace of ddd when hung:

(gdb) bt
#0 0x00315422 in __kernel_vsyscall ()
#1 0x008e0b4b in *__GI___poll (fds=0x976ff4, nfds=3, timeout=25159)
at ../sysdeps/unix/sysv/linux/poll.c:83
#2 0x0014eed1 in _XtWaitForSomething () from /usr/lib/libXt.so.6
#3 0x00150346 in XtAppNextEvent () from /usr/lib/libXt.so.6
#4 0x0805c59b in process_next_event () at ddd.C:3221
#5 0x0812930d in ddd_main_loop () at mainloop.C:120
#6 0x0806d62a in main (argc=2, argv=0xbfe4c484) at ddd.C:3175

Not very information/interesting...

Stephen Warren <srwarren>
Fri 07 May 2010 06:00:28 AM UTC, comment #3:

This also affects Ubuntu Lucid; see https://bugs.launchpad.net/ubuntu/+source/ddd/+bug/574157

Stephen Warren <srwarren>
Mon 12 Apr 2010 10:14:55 PM UTC, comment #2:

I have the same problem, it happens in the gdb-console window too. I'm on Debian sid with Gnome.

Thu 04 Feb 2010 10:05:24 AM UTC, comment #1:

I experienced the same problem. I notice that the program always crash if you right-click on the data window. However, the program works fine if you could manage to use only the left-click.

Manachai Toahchoodee <manachai>
Thu 10 Dec 2009 12:32:50 PM UTC, original submission:

If you go to a variable in the data window with the mouse pointer and click too long on the variable (or twice, i do not no) then the ddd crashes. The mouse pointer can not leave the data window. This is a real problem (cruel), because, you can not quit the ddd, you can not do anything with the mouse. I have to shut down the OS.
The Linux System is Fedora 12 (ddd-3.3.12-5.fc12)

hans loeffel <hans_loeffel>


(Note: upload size limit is set to 16384 kB, after insertion of the required escape characters.)

Attach Files:

No files currently attached


Depends on the following items: None found

Items that depend on this one: None found


Carbon-Copy List
  • -email is unavailable- added by stayreal (Posted a comment)
  • -email is unavailable- added by johnboncek
  • -email is unavailable- added by susancai (Posted a comment)
  • -email is unavailable- added by srwarren (Posted a comment)
  • -email is unavailable- added by manachai (Posted a comment)
  • -email is unavailable- added by hans_loeffel (Submitted the item)

    Do you think this task is very important?
    If so, you can add your encouragement to it.
    This task has 0 encouragements so far.

    Only logged-in users can vote.




    Follows 1 latest change.

    Date Changed by Updated Field Previous Value => Replaced by
    2011-03-10 johnboncek Carbon-Copy- => Added -email is unavailable-

    Back to the top

    Powered by Savane 3.3