.
Thread 2 (process 1444):
#0  0x00c5e416 in __kernel_vsyscall ()
No symbol table info available.
#1  0x004c3de6 in *__GI___poll (fds=0x8f03ef8, nfds=1, timeout=-1)
    at ../sysdeps/unix/sysv/linux/poll.c:87
	resultvar = <value optimized out>
	oldtype = -516
	result = <value optimized out>
#2  0xffffffff in ?? ()
No symbol table info available.
Backtrace stopped: previous frame inner to this frame (corrupt stack?)
.
Thread 1 (process 1405):
#0  0x0808a4e7 in CompOption::name (this=0x13f9e)
    at /usr/include/c++/4.5/bits/basic_string.h:233
No locals.
#1  0x08080a68 in PrivateWindow::allowWindowFocus (this=0x911b4a0, 
    noFocusMask=35, timestamp=0)
    at /build/buildd/compiz-0.9.2.1+glibmainloop4/src/window.cpp:662
	retval = <value optimized out>
#2  0x08083a41 in PrivateWindow::processMap (this=0x911b4a0)
    at /build/buildd/compiz-0.9.2.1+glibmainloop4/src/window.cpp:662
	allowFocus = <value optimized out>
	stackingMode = <value optimized out>
#3  0x08092eb6 in CompScreen::handleEvent (this=0x8ecf4b8, event=0xbfbb339c)
    at /build/buildd/compiz-0.9.2.1+glibmainloop4/src/event.cpp:77
	attr = {x = 337, y = 309, width = 605, height = 405, 
  border_width = 0, depth = 24, visual = 0x8ee0098, root = 429, c_class = 1, 
  bit_gravity = 1, win_gravity = 1, backing_store = 0, 
  backing_planes = 4294967295, backing_pixel = 0, save_under = 0, 
  colormap = 32, map_installed = 1, map_state = 0, all_event_masks = 6520959, 
  your_event_mask = 6291472, do_not_propagate_mask = 0, 
  override_redirect = 0, screen = 0x8ed5398}
	doMapProcessing = Unhandled dwarf expression opcode 0x9f