(gdb) run /home/ph/bg1a.png 
Starting program: /usr/bin/feh /home/ph/bg1a.png
[Thread debugging using libthread_db enabled]

Program received signal SIGSEGV, Segmentation fault.
0x0000000000405f1c in feh_event_handle_ButtonPress (ev=0x7fffffffe0f0) at events.c:92
92			   && (winwid->type != WIN_TYPE_THUMBNAIL)
(gdb) bt full
#0  0x0000000000405f1c in feh_event_handle_ButtonPress (ev=0x7fffffffe0f0) at events.c:92
        winwid = 0x0
#1  0x00000000004114b5 in feh_main_iteration (block=1) at main.c:116
        first = 0
        xfd = 7
        fdsize = 8
        pt = 1313519796.4419551
        ev = {type = 4, xany = {type = 4, serial = 402, send_event = 0, display = 0x62e290, window = 27262989}, xkey = {type = 4, serial = 402, send_event = 0, display = 0x62e290, window = 27262989, root = 345, subwindow = 0, 
            time = 40349084, x = 21, y = 18, x_root = 1801, y_root = 379, state = 0, keycode = 1, same_screen = 1}, xbutton = {type = 4, serial = 402, send_event = 0, display = 0x62e290, window = 27262989, root = 345, subwindow = 0, 
            time = 40349084, x = 21, y = 18, x_root = 1801, y_root = 379, state = 0, button = 1, same_screen = 1}, xmotion = {type = 4, serial = 402, send_event = 0, display = 0x62e290, window = 27262989, root = 345, subwindow = 0, 
            time = 40349084, x = 21, y = 18, x_root = 1801, y_root = 379, state = 0, is_hint = 1 '\001', same_screen = 1}, xcrossing = {type = 4, serial = 402, send_event = 0, display = 0x62e290, window = 27262989, root = 345, 
            subwindow = 0, time = 40349084, x = 21, y = 18, x_root = 1801, y_root = 379, mode = 0, detail = 1, same_screen = 1, focus = 0, state = 0}, xfocus = {type = 4, serial = 402, send_event = 0, display = 0x62e290, 
            window = 27262989, mode = 345, detail = 0}, xexpose = {type = 4, serial = 402, send_event = 0, display = 0x62e290, window = 27262989, x = 345, y = 0, width = 0, height = 0, count = 40349084}, xgraphicsexpose = {type = 4, 
            serial = 402, send_event = 0, display = 0x62e290, drawable = 27262989, x = 345, y = 0, width = 0, height = 0, count = 40349084, major_code = 0, minor_code = 21}, xnoexpose = {type = 4, serial = 402, send_event = 0, 
            display = 0x62e290, drawable = 27262989, major_code = 345, minor_code = 0}, xvisibility = {type = 4, serial = 402, send_event = 0, display = 0x62e290, window = 27262989, state = 345}, xcreatewindow = {type = 4, 
            serial = 402, send_event = 0, display = 0x62e290, parent = 27262989, window = 345, x = 0, y = 0, width = 40349084, height = 0, border_width = 21, override_redirect = 18}, xdestroywindow = {type = 4, serial = 402, 
            send_event = 0, display = 0x62e290, event = 27262989, window = 345}, xunmap = {type = 4, serial = 402, send_event = 0, display = 0x62e290, event = 27262989, window = 345, from_configure = 0}, xmap = {type = 4, serial = 402, 
            send_event = 0, display = 0x62e290, event = 27262989, window = 345, override_redirect = 0}, xmaprequest = {type = 4, serial = 402, send_event = 0, display = 0x62e290, parent = 27262989, window = 345}, xreparent = {type = 4, 
            serial = 402, send_event = 0, display = 0x62e290, event = 27262989, window = 345, parent = 0, x = 40349084, y = 0, override_redirect = 21}, xconfigure = {type = 4, serial = 402, send_event = 0, display = 0x62e290, 
            event = 27262989, window = 345, x = 0, y = 0, width = 40349084, height = 0, border_width = 21, above = 1627792606985, override_redirect = 0}, xgravity = {type = 4, serial = 402, send_event = 0, display = 0x62e290, 
            event = 27262989, window = 345, x = 0, y = 0}, xresizerequest = {type = 4, serial = 402, send_event = 0, display = 0x62e290, window = 27262989, width = 345, height = 0}, xconfigurerequest = {type = 4, serial = 402, 
            send_event = 0, display = 0x62e290, parent = 27262989, window = 345, x = 0, y = 0, width = 40349084, height = 0, border_width = 21, above = 1627792606985, detail = 0, value_mask = 1}, xcirculate = {type = 4, serial = 402, 
            send_event = 0, display = 0x62e290, event = 27262989, window = 345, place = 0}, xcirculaterequest = {type = 4, serial = 402, send_event = 0, display = 0x62e290, parent = 27262989, window = 345, place = 0}, xproperty = {
            type = 4, serial = 402, send_event = 0, display = 0x62e290, window = 27262989, atom = 345, time = 0, state = 40349084}, xselectionclear = {type = 4, serial = 402, send_event = 0, display = 0x62e290, window = 27262989, 
            selection = 345, time = 0}, xselectionrequest = {type = 4, serial = 402, send_event = 0, display = 0x62e290, owner = 27262989, requestor = 345, selection = 0, target = 40349084, property = 77309411349, 
            time = 1627792606985}, xselection = {type = 4, serial = 402, send_event = 0, display = 0x62e290, requestor = 27262989, selection = 345, target = 0, property = 40349084, time = 77309411349}, xcolormap = {type = 4, 
            serial = 402, send_event = 0, display = 0x62e290, window = 27262989, colormap = 345, new = 0, state = 0}, xclient = {type = 4, serial = 402, send_event = 0, display = 0x62e290, window = 27262989, message_type = 345, 
            format = 0, data = {b = "\234\255g\002\000\000\000\000\025\000\000\000\022\000\000\000\t\a\000", s = {-21092, 615, 0, 0, 21, 0, 18, 0, 1801, 0}, l = {40349084, 77309411349, 1627792606985, 4294967296, 1}}}, xmapping = {
            type = 4, serial = 402, send_event = 0, display = 0x62e290, window = 27262989, request = 345, first_keycode = 0, count = 0}, xerror = {type = 4, display = 0x192, resourceid = 6944603608121868288, serial = 6480528, 
            error_code = 13 '\r', request_code = 0 '\000', minor_code = 160 '\240'}, xkeymap = {type = 4, serial = 402, send_event = 0, display = 0x62e290, window = 27262989, 
            key_vector = "Y\001", '\000' <repeats 14 times>"\234, \255g\002\000\000\000\000\025\000\000\000\022\000\000"}, xgeneric = {type = 4, serial = 402, send_event = 0, display = 0x62e290, extension = 27262989, evtype = 0}, 
          xcookie = {type = 4, serial = 402, send_event = 0, display = 0x62e290, extension = 27262989, evtype = 0, cookie = 345, data = 0x0}, pad = {434037725507616772, 402, 6944603608121868288, 6480528, 27262989, 345, 0, 40349084, 
            77309411349, 1627792606985, 4294967296, 1, -4557536857465815040, 216596656781623680, 866386627126494723, 3465546353283176460, -4584558660576845776, 108509431383220416, 434037725532881667, 1736150902131526668, 
            6944603608526097420, -9115073713314713552, -9114437915865202495, 435736483958293249}}
        tval = {tv_sec = 0, tv_usec = 0}
        fdset = {__fds_bits = {128, 0 <repeats 15 times>}}
        count = 0
        t1 = 1313519796.4419551
        t2 = 0.048069000244140625
        ft = 0x0
#2  0x00000000004113b3 in main (argc=2, argv=0x7fffffffe2f8) at main.c:79
No locals.
(gdb) thread apply all bt

Thread 1 (Thread 0x7ffff7faf700 (LWP 12550)):
#0  0x0000000000405f1c in feh_event_handle_ButtonPress (ev=0x7fffffffe0f0) at events.c:92
#1  0x00000000004114b5 in feh_main_iteration (block=1) at main.c:116
#2  0x00000000004113b3 in main (argc=2, argv=0x7fffffffe2f8) at main.c:79
(gdb) bt
#0  0x0000000000405f1c in feh_event_handle_ButtonPress (ev=0x7fffffffe0f0) at events.c:92
#1  0x00000000004114b5 in feh_main_iteration (block=1) at main.c:116
#2  0x00000000004113b3 in main (argc=2, argv=0x7fffffffe2f8) at main.c:79