When bug happens, vim exits from x_error_handler() without core dump.
I added a call to abort() in x_error_handler() in my CVS sanbox (vim-7.1.156)
to have a core dump and thus see the call stack etc when that bug happens.
(gdb) bt
#0 0xffffe410 in __kernel_vsyscall ()
#1 0xb7730ca6 in kill () from /lib/tls/i686/cmov/libc.so.6
#2 0x0814a0ce in may_core_dump () at os_unix.c:2951
#3 0x0814a060 in mch_exit (r=1) at os_unix.c:2916
#4 0x080e5565 in getout (exitval=1) at main.c:1342
#5 0x08110836 in preserve_exit () at misc1.c:8349
#6 0x08148341 in deathtrap (sigarg=6) at os_unix.c:1030
#7 <signal handler called>
#8 0xffffe410 in __kernel_vsyscall ()
#9 0xb7730875 in raise () from /lib/tls/i686/cmov/libc.so.6
#10 0xb7732201 in abort () from /lib/tls/i686/cmov/libc.so.6
#11 0x0814879b in x_error_handler (dpy=0x82a8478, error_event=0xbff92cc8) at
os_unix.c:1379
#12 0xb7651bfa in _XError () from /usr/lib/libX11.so.6
#13 0xb76536c4 in _XReply () from /usr/lib/libX11.so.6
#14 0xb7637886 in XGetWindowProperty () from /usr/lib/libX11.so.6
#15 0xb7637fce in XGetTextProperty () from /usr/lib/libX11.so.6
#16 0xb76380e3 in XGetWMName () from /usr/lib/libX11.so.6
#17 0x08148cd5 in get_x11_thing (get_title=1, test_only=0) at os_unix.c:1704
#18 0x08148c07 in get_x11_title (test_only=0) at os_unix.c:1665
#19 0x08149087 in mch_settitle (title=0x8292f18 "[Neniu nomo] - VIM",
icon=0x8292f30 "[Neniu nomo]") at os_unix.c:1956
#20 0x08057358 in resettitle () at buffer.c:3260
#21 0x080ab57d in ex_stop (eap=0xbff92f60) at ex_docmd.c:6551
#22 0x080a5147 in do_one_cmd (cmdlinep=0xbff930c8, sourcing=1,
cstack=0xbff93124, fgetline=0, cookie=0x0)
at ex_docmd.c:2621
#23 0x080a2997 in do_cmdline (cmdline=0x81f26e4 "st", getline=0, cookie=0x0,
flags=11) at ex_docmd.c:1099
#24 0x080a2049 in do_cmdline_cmd (cmd=0x81f26e4 "st") at ex_docmd.c:705
#25 0x0812caef in nv_suspend (cap=0xbff934a8) at normal.c:7513
#26 0x081222c7 in normal_cmd (oap=0xbff93548, toplevel=1) at normal.c:1148
#27 0x080e52a2 in main_loop (cmdwin=0, noexmode=0) at main.c:1181
#28 0x080e4df2 in main (argc=1, argv=0xbff93744) at main.c:940
So the X error handler is called at os_unix.c:1704 when trying to set
the name of the terminal window.
os_unix.c:
1691│ static int
1692│ get_x11_thing(get_title, test_only)
1693│ int get_title; /* get title string */
1694│ int test_only;
1695│ {
1696│ XTextProperty text_prop;
1697│ int retval = FALSE;
1698│ Status status;
1699│
1700│ if (get_x11_windis() == OK)
1701│ {
1702│ /* Get window/icon name if any */
1703│ if (get_title)
1704├> status = XGetWMName(x11_display, x11_window, &text_prop);
1705│ else
1706│ status = XGetWMIconName(x11_display, x11_window, &text_prop);
1707│
--
[gutsy] Vim crash when gnome terminal tab is detached
https://bugs.launchpad.net/bugs/129106
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