#0  PrivateWindow::addWindowStackChanges (this=0xc31ff4, xwc=0xc31ff4, sibling=0xbfd84d08) at /build/buildd/compiz-0.9.6/src/window.cpp:3853
        pendingRestacks = false
        mask = 0
#1  0x00c31ff4 in ?? ()
No symbol table info available.
Backtrace stopped: Not enough registers or memory available to unwind further