(gdb) bt full
#0  0xb7e39363 in strlen () from /lib/tls/libc.so.6
No symbol table info available.
#1  0xb7e08681 in vfprintf () from /lib/tls/libc.so.6
No symbol table info available.
#2  0xb7e2a010 in vsnprintf () from /lib/tls/libc.so.6
No symbol table info available.
#3  0xb7e0e904 in snprintf () from /lib/tls/libc.so.6
No symbol table info available.
#4  0x0804ad2e in invoke_class_instance_hook (c=0x80addb8, hook=0x80594e0 "before-attach") at client.c:238
        buf = "/default/client/", '\0' <repeats 11 times>, "/", '\0' <repeats 28 times>, "$>&#65533;, '\0' <repeats 12 times>, "H", '\0' <repeats 19 times>, "@8&#65533;200.&#65533;8&#65533;210&#65533;n\b&#556;&#65533;-&#65533;8&#65533;210&#65533;n\b&#65533;030\006\b"
        f = (File *) 0x0
#5  0x080500e2 in attach_client (c=0x80addb8) at frame.c:448
        p = (Page *) 0x0
        f = (Frame *) 0x0
#6  0x0804b806 in _attach_client (obj=0x0, cmd=0x0) at core.c:272
        c = (Client *) 0x80addb8
#7  0x0804b024 in run_action (f=0x80618c8) at core.c:89
        i = 4
        len = 6
        num_act = 8
        acttbl = (Action *) 0x805b700
        obj = (void *) 0x0
#8  0x0804be5e in handle_after_write (s=0x8061c88, f=0x80618c8) at core.c:441
No locals.
#9  0x08056ba9 in ixp_write (s=0x8061c88, fd=16, offset=0, content=0x80ac1a8, in_len=6) at ramfs.c:175
        f = (File *) 0x80618c8
#10 0x080572bd in handle_ixp_write (c=0x8061d60, h=0xbfe1adc0) at server.c:92
        fidx = 0
#11 0x08057580 in check_ixp_request (c=0x8061d60) at server.c:142
        h = {req = TWRITE, fd = 16, offset = 0, buf_len = 6}
#12 0x0805798a in read_conn (c=0x8061d60) at server.c:214
        r = 22
#13 0x08057d87 in handle_socks (s=0x8061c88) at server.c:301
        i = 2
        now = 1
#14 0x08058418 in run_server (s=0x8061c88) at server.c:415
        r = 1
        i = 0
#15 0x08058370 in run_server_with_fd_support (s=0x8061c88, fd=3, fd_read=0x804bfbc <check_event>, fd_write=0) at server.c:395
No locals.
#16 0x080539a4 in run () at wmiiwm.c:225
No locals.
#17 0x08053bcd in main (argc=1, argv=0xbfe1af44) at wmiiwm.c:283
        i = -1209061760