Starting program: /usr/bin/openbox 
[Thread debugging using libthread_db enabled]
Openbox-Message: Unable to find a valid menu file "/var/lib/openbox/debian-menu.xml"
Program received signal SIGSEGV, Segmentation fault.
0x00000000004476af in make_grid (client_rects=0x7fffffffe010, n_client_rects=4, bound=0x0, x_edges=0x7fffffffdf20, y_edges=0x7fffffffdee0, 
    max_edges=10) at openbox/overlap.c:109
109             if (!RECT_INTERSECTS_RECT(client_rects[i], *bound))
(gdb) l
104               int* x_edges, int* y_edges, int max_edges)
105     {
106         int i;
107         int n_edges = 0;
108         for (i = 0; i < n_client_rects; ++i) {
109             if (!RECT_INTERSECTS_RECT(client_rects[i], *bound))
110                 continue;
111             x_edges[n_edges] = client_rects[i].x;
112             y_edges[n_edges++] = client_rects[i].y;
113             x_edges[n_edges] = client_rects[i].x + client_rects[i].width;
(gdb) bt
#0  0x00000000004476af in make_grid (client_rects=0x7fffffffe010, n_client_rects=4, bound=0x0, x_edges=0x7fffffffdf20, 
    y_edges=0x7fffffffdee0, max_edges=10) at openbox/overlap.c:109
#1  0x00000000004474a2 in overlap_find_least_placement (client_rects=0x7fffffffe010, n_client_rects=4, bounds=0x7b3300, n_bounds=1, 
    req_size=0x7fffffffe090, result=0x7fffffffe0a0) at openbox/overlap.c:49
#2  0x00000000004497ac in place_least_overlap (c=0x7b49a0, foreground=8074160, x=0x7fffffffe1b0, y=0x7fffffffe1b4) at openbox/place.c:583
#3  0x0000000000449929 in place_client (client=0x7b49a0, foreground=0, x=0x7fffffffe1b0, y=0x7fffffffe1b4, settings=0x6ed520)
    at openbox/place.c:615
#4  0x0000000000418f91 in client_manage (window=10486907, prompt=0x0) at openbox/client.c:331
#5  0x0000000000459544 in window_manage (win=10486907) at openbox/window.c:217
#6  0x000000000042ba15 in event_process (ec=0x7fffffffe520, data=0x0) at openbox/event.c:635
#7  0x00007ffff5622f31 in ?? () from /usr/lib/libobt.so.0
#8  0x00007ffff4b4963d in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0
#9  0x00007ffff4b49e18 in ?? () from /usr/lib/libglib-2.0.so.0
#10 0x00007ffff4b4a45a in g_main_loop_run () from /usr/lib/libglib-2.0.so.0
#11 0x000000000044604a in main (argc=1, argv=0x7fffffffe8e8) at openbox/openbox.c:378