GNU gdb (GDB) 7.3.50.20111026-cvs (cygwin-special)
Copyright (C) 2011 Free Software Foundation, Inc.
License GPLv3+: GNU GPL version 3 or later <http://gnu.org/licenses/gpl.html>
This is free software: you are free to change and redistribute it.
There is NO WARRANTY, to the extent permitted by law.  Type "show copying"
and "show warranty" for details.
This GDB was configured as "i686-cygwin".
For bug reporting instructions, please see:
<http://www.gnu.org/software/gdb/bugs/>.
Attaching to process 2640
[New Thread 2640.0x8f4]
[New Thread 2640.0x17f0]
[New Thread 2640.0x1330]
[New Thread 2640.0x510]
[New Thread 2640.0x1620]
[New Thread 2640.0x1590]
[New Thread 2640.0xeec]
[New Thread 2640.0x26c]
[New Thread 2640.0x17e8]
[New Thread 2640.0xcf4]
[New Thread 2640.0x798]
[New Thread 2640.0xe90]
[New Thread 2640.0x11fc]
[New Thread 2640.0xf5c]
Reading symbols from /usr/bin/XWin.exe...Reading symbols from /usr/lib/debug/usr/bin/XWin.dbg...
warning: section .gnu_debuglink not found in /usr/lib/debug/usr/bin/XWin.dbg
done.
done.
[?1034h(gdb) c
Continuing.
[New Thread 2640.0x168]
[New Thread 2640.0xac]
[New Thread 2640.0x12c8]

Program received signal SIGSEGV, Segmentation fault.
[Switching to Thread 2640.0x1620]
0x0040a41e in winXIconToHICON (pDisplay=0x202f3ed8, id=2097153, iconSize=<optimized out>)
    at /opt/wip/cygport-git/xorg-server/xorg-server-1.12.0-4/src/xserver-cygwin-1.12.0-4/hw/xwin/winmultiwindowicons.c:535
535	/opt/wip/cygport-git/xorg-server/xorg-server-1.12.0-4/src/xserver-cygwin-1.12.0-4/hw/xwin/winmultiwindowicons.c: No such file or directory.
	in /opt/wip/cygport-git/xorg-server/xorg-server-1.12.0-4/src/xserver-cygwin-1.12.0-4/hw/xwin/winmultiwindowicons.c
(gdb) bt full
#0  0x0040a41e in winXIconToHICON (pDisplay=0x202f3ed8, id=2097153, iconSize=<optimized out>)
    at /opt/wip/cygport-git/xorg-server/xorg-server-1.12.0-4/src/xserver-cygwin-1.12.0-4/hw/xwin/winmultiwindowicons.c:535
        root = 1987733555
        y = 2145373224
        depth = 2145373168
        xImageIcon = 0x0
        x = 1987733604
        width = 1024
        height = 0
        border_width = 1987759504
        xImageMask = 0x0
        mask = <optimized out>
        image = <optimized out>
        imageMask = <optimized out>
        dst = <optimized out>
        src = <optimized out>
        planes = 1
        bpp = 32
        i = <optimized out>
        biggest_size = <optimized out>
        hDC = <optimized out>
        ii = {fIcon = 2145373152, xHotspot = 1987733433, yHotspot = 11, hbmMask = 0xb, 
          hbmColor = 0x200001}
        hints = 0x203aff40
        hIcon = 0x0
        biggest_icon = <optimized out>
        _XA_NET_WM_ICON = 238
        generation = 1
        icon = <optimized out>
        icon_data = 0x0
        size = 0
        type = 0
        format = 0
        left = 0
#1  0x0040a6ab in winUpdateIcon (hWnd=0x1004e0, pDisplay=0x202f3ed8, id=2097153, hIconNew=0x0)
    at /opt/wip/cygport-git/xorg-server/xorg-server-1.12.0-4/src/xserver-cygwin-1.12.0-4/hw/xwin/winmultiwindowicons.c:560
        hIcon = <optimized out>
        hIconSmall = 0x0
        hIconOld = <optimized out>
#2  0x0041f5e7 in UpdateIcon (iWindow=2097153, pWMInfo=<optimized out>)
    at /opt/wip/cygport-git/xorg-server/xorg-server-1.12.0-4/src/xserver-cygwin-1.12.0-4/hw/xwin/winmultiwindowwm.c:667
        hWnd = 0x1004e0
        hIconNew = <optimized out>
        attr = {x = 310, y = 96, width = 819, height = 707, border_width = 0, depth = 24, 
          visual = 0x2033fb40, root = 468, class = 1, bit_gravity = 0, win_gravity = 1, 
          backing_store = 0, backing_planes = 4294967295, backing_pixel = 0, save_under = 0, 
          colormap = 32, map_installed = 1, map_state = 2, all_event_masks = 4358144, 
          your_event_mask = 0, do_not_propagate_mask = 8205, override_redirect = 0, 
          screen = 0x2033fa90}
#3  0x004210d0 in winMultiWindowWMProc (pArg=0x20046fa0)
    at /opt/wip/cygport-git/xorg-server/xorg-server-1.12.0-4/src/xserver-cygwin-1.12.0-4/hw/xwin/winmultiwindowwm.c:836
        pNode = 0x202e54f8
        __cleanup_handler = {function = 0x41eeb0 <winMultiWindowThreadExit>, arg = 0x0, 
          next = 0x0}
        pProcArg = 0x20046fa0
        pWMInfo = 0x20046fb0
#4  0x610fc052 in pthread::thread_init_wrapper(void*) () from /usr/bin/cygwin1.dll
No symbol table info available.
#5  0x61086bf2 in thread_wrapper(void*) () from /usr/bin/cygwin1.dll
No symbol table info available.
Backtrace stopped: Not enough registers or memory available to unwind further
(gdb) quit
A debugging session is active.

	Inferior 1 [process 2640] will be detached.

Quit anyway? (y or n) Detaching from program: /usr/bin/XWin.exe, Pid 2640