I believe we have a working patch for the problem. A quick summary of what it looks like is happening:
Openbox maintains a list of windows organized by stacking order from highest to lowest. This is a doubly-linked list. There is a function in Openbox called client_calc_layer that uses a pointer into this list to walk through it while modifying it. When client_calc_layer modifies the list, it also messes up the pointer that it is actively using to walk through the list. The next element that Openbox loads contains a dangling pointer, and that promptly results in a segfault when Openbox tries to dereference that pointer. To solve the problem, I added a patch that makes Openbox save a pointer to the list element *before* the current element before modifying the list. When the list is then modified, the still-valid pointer to the previous list element is used to get a new (and actually usable!) pointer to the current list element. The old, broken pointer is then overwritten by the new, working pointer, and the segfaults stop. Using the patch, I am no longer able to reproduce this bug when following the testcase (open a browser fullscreen, right-click a link, and click "Open in new window"). I have the patched Openbox uploaded to a PPA here: https://launchpad.net/~arraybolt3/+archive/ubuntu/openbox -- You received this bug notification because you are a member of Ubuntu Desktop Bugs, which is subscribed to glib2.0 in Ubuntu. https://bugs.launchpad.net/bugs/2011751 Title: openbox crashed with SIGABRT To manage notifications about this bug go to: https://bugs.launchpad.net/ubuntu/+source/glib2.0/+bug/2011751/+subscriptions -- desktop-bugs mailing list desktop-bugs@lists.ubuntu.com https://lists.ubuntu.com/mailman/listinfo/desktop-bugs
