11:24 p.m.
Although your instructions say to find 'core' and run it under gdb, the
only 'core' files I can find are clearly not from emacs or xemacs. So I
cannot give you that.
In fact, I really do suspect that the root cause of this problem has
nothing to do with emacs or xemacs, but everything to do with Cygwin/X.
Perhaps you can come up with something helpful with that information.
The crash message in xterm is:
$ xemacs applications/consoleapp/consoleapp.cpp
Warning: XtRemoveGrab asked to remove a widget not on the list
Warning: XtRemoveGrab asked to remove a widget not on the list
Fatal error (11).
Your files have been auto-saved.
Use `M-x recover-session' to recover them.
Your version of XEmacs was distributed with a PROBLEMS file that may
describe
your crash, and with luck a workaround. Please check it first, but do
report
the crash anyway. Please report this bug by invoking M-x report-emacs-bug,
or by selecting `Send Bug Report' from the Help menu. If necessary, send
ordinary email to `crashes(a)xemacs.org'. *MAKE SURE* to include the XEmacs
configuration from M-x describe-installation, or equivalently the file
Installation in the top of the build tree.
*Please* try *hard* to obtain a C stack backtrace; without it, we are
unlikely
to be able to analyze the problem. Locate the core file produced as a
result
of this crash (often called `core' or `core.<process-id>', and located in
the directory in which you started XEmacs or your home directory), and type
gdb /usr/bin/xemacs core
then type `where' at the debugger prompt. No GDB on your system? You may
have DBX, or XDB, or SDB. (Ask your system administrator if you need help.)
If no core file was produced, enable them (often with `ulimit -c unlimited'
in case of future recurrance of the crash.
Lisp backtrace follows:
kill-emacs()
# bind (arg)
save-buffers-kill-emacs(nil)
# bind (command-debug-status)
call-interactively(save-buffers-kill-emacs)
# (condition-case ... . error)
# (catch top-level ...)
Segmentation fault
And although I get errors about clipboard in X while running startx, I
was able to use X's cut-and-paste from xterm to get the above into my
WinXP email client!
Now re-entering the command line that invoked xemacs and invoking
'describe-installation' I get:
uname -a: CYGWIN_NT-5.0 summer 1.5.7(0.109/3/2) 2004-01-30 19:32 i686
unknown unknown Cygwin
/usr/src/xemacs-21.4.15/configure '--pdump'
'--srcdir=/usr/src/xemacs-21.4.15' '--prefix=/usr'
'--datadir=/usr/share' '--statedir=/var' '--libdir=/usr/lib'
'--infodir=/usr/share/xemacs-21.4.15/info'
'--mandir=/usr/share/man/man1'
'--package-path=/usr/local/share/xemacs/site-packages:/usr/share/xemacs/site-packages:/usr/share/xemacs/xemacs-packages:/usr/share/xemacs/mule-packages'
'--with-mule' '--with_file_coding=yes' '--with_msw=yes'
'--with-modules=no' '--with-dialogs=motif' '--with-widgets=motif'
XEmacs 21.4.15 "Security Through Obscurity" configured for
`i686-pc-cygwin'.
Compilation / Installation:
Source code location: /usr/src/xemacs-21.4.15
Installation prefix: /usr
Operating system description file: `s/cygwin32.h'
Machine description file: `m/intel386.h'
Compiler: gcc -g -O3 -Wall -Wno-switch
-Winline -Wmissing-prototypes -Wsign-compare -fno-strict-aliasing
-Wshadow -Wpointer-arith
Compiler version: gcc (GCC) 3.3.1 (cygming special)
Compiler specs file:
/usr/lib/gcc-lib/i686-pc-cygwin/3.3.1/specs
Relocating allocator for buffers: no
GNU version of malloc: yes
libc: system-provided libc on i686-pc-cygwin
Window System:
Compiling in support for the Microsoft window system.
Compiling in support for the X window system:
- X Windows headers location: /usr/X11/include
- X Windows libraries location: /usr/X11R6/lib
- Handling WM_COMMAND properly.
Compiling in support for Motif.
- Using LessTif implementation.
*WARNING* Many versions of Motif are buggy, requiring workarounds.
You are likely to experience slow redisplay.
You may need to install vendor patches to Motif.
See PROBLEMS for more information.
Using Lucid menubars.
Using Lucid scrollbars.
Using Motif dialog boxes.
Using Motif native widgets.
TTY:
Compiling in support for ncurses.
Images:
Compiling in support for GIF images (builtin).
Compiling in support for XPM images.
Compiling in support for PNG images.
Compiling in support for JPEG images.
Compiling in support for TIFF images.
Compiling in support for X-Face message headers.
Sound:
Compiling in support for sound (native).
Databases:
Compiling in support for Berkeley database.
Compiling in support for LDAP.
Compiling in support for PostgreSQL.
- Using PostgreSQL header file: libpq-fe.h
- Using PostgreSQL V7 bindings.
Internationalization:
Compiling in support for Mule (multi-lingual Emacs).
Compiling in support for file coding.
Compiling in support for XIM (X11R5+ I18N input method).
- Using raw Xlib to provide XIM support.
Mail:
Compiling in support for POP mail retrieval.
Other Features:
Inhibiting IPv6 canonicalization at startup.
Using the new portable dumper.
And as you can see, copy-and-paste worked from inside xemacs too, even
though I regularly get the error messages:
winProcSetSelectionOwner - Clipboard not yet started, aborting.
winProcSetSelectionOwner - Clipboard not yet started, aborting.
as the final messages during startx.
Finally, no, alas, I don't remember what I was doing when the error occured.
3:07 p.m.
>>>> "Matthew" == Matthew Johnson
<mjohnson(a)lightsurf.com> writes:
Matthew> Lisp backtrace follows:
Matthew> kill-emacs()
From your Installation:
Matthew> '--with-modules=no' '--with-dialogs=motif'
'--with-widgets=motif'
Matthew> Compiling in support for Motif.
Matthew> - Using LessTif implementation.
Matthew> *WARNING* Many versions of Motif are buggy, requiring workarounds.
Matthew> You are likely to experience slow redisplay.
Matthew> You may need to install vendor patches to Motif.
Matthew> See PROBLEMS for more information.
Matthew> Finally, no, alas, I don't remember what I was doing when the error
occured.
You were exiting, it looks like. If so, you can maybe just live with
it; AFAIK it doesn't actually happen until well after all user data is
safely tucked away in files.
We are _not_ kidding with that warning. There are many known bugs in
various versions of Motif, here are two of them:
** Motif
Motif is the X11 version of the Gnus torture test: if there's a way to
crash, Motif will find it. With the open source release of Motif, it
seems like a good idea to collect all Motif-related issues in one
place.
You should also look in your OS's section, as it may not be Motif's
fault.
*** XEmacs crashes on exit (#1).
The backtrace is something like:
(gdb) where
#0 0xfeb9a480 in _libc_kill () from /usr/lib/libc.so.1
#1 0x000b0388 in fatal_error_signal ()
#2 <signal handler called>
#3 YowIter (ht=0xb, id=0x0, v=0x74682074, client=0x47e3c0)
at ImageCache.c:1159
#4 0xff26cc5c in _LTHashTableForEachItem (ht=0x4725e8,
iter=0xff26dda0 <YowIter>, ClientData=0x47e3c0) at Hash.c:671
#5 0xff2a4664 in destroy (w=0x496550) at Screen.c:352
#6 0xfef92118 in Phase2Destroy () from /usr/openwin/lib/libXt.so.4
#7 0xfef91940 in Recursive () from /usr/openwin/lib/libXt.so.4
#8 0xfef91e44 in XtPhase2Destroy () from /usr/openwin/lib/libXt.so.4
#9 0xfef91ae8 in _XtDoPhase2Destroy () from /usr/openwin/lib/libXt.so.4
#10 0xfef918cc in XtDestroyWidget () from /usr/openwin/lib/libXt.so.4
#11 0xfef91438 in CloseDisplay () from /usr/openwin/lib/libXt.so.4
#12 0xfef91394 in XtCloseDisplay () from /usr/openwin/lib/libXt.so.4
#13 0x0025b8b0 in x_delete_device ()
#14 0x000940b0 in delete_device_internal ()
#15 0x000806a0 in delete_console_internal ()
This is known to happen with Lesstif version 0.93.36. Similar
backtraces have also been observed on HP/UX and Solaris. There is a
patch for Lesstif. (This is not a solution; it just stops the crash.
It may or may not be harmless, but "it works for the author".)
Note that this backtrace looks a lot like the one in the next item.
However, this one is invulnerable to the Solaris patches mentioned there.
Frank McIngvale <frankm(a)hiwaay.net> says:
Ok, 0.93.34 works, and I tracked down the crash to a section
marked "experimental" in 0.93.36. Patch attached, "works for me".
diff -u -r lesstif-0.93.36/lib/Xm/ImageCache.c lesstif-0.93.36-mod/lib/Xm/ImageCache.c
--- lesstif-0.93.36/lib/Xm/ImageCache.c 2002-08-05 14:53:24.000000000 -0500
+++ lesstif-0.93.36-mod/lib/Xm/ImageCache.c 2002-11-11 11:13:12.000000000 -0600
＠＠ -1166,5 +1166,4 ＠＠
DEBUGOUT(_LtDebug0(__FILE__, NULL, "_LtImageCacheScreenDestroy (XmGetPixmapByDepth)
%p\n",
s));
- (void) _LTHashTableForEachItem(PixmapCache, YowIter, (XtPointer)s);
}
*** XEmacs crashes on exit (#2)
Especially frequent with multiple frames. Crashes that produce C
backtraces like this:
#0 0xfec9a118 in _libc_kill () from /usr/lib/libc.so.1
#1 0x77f48 in fatal_error_signal (sig=11)
at /codes/rpluim/xemacs-21.4/src/emacs.c:539
#2 <signal handler called>
#3 0xfee929f4 in XFindContext () from /usr/openwin/lib/libX11.so.4
#4 0xfee92930 in XFindContext () from /usr/openwin/lib/libX11.so.4
#5 0xff297e54 in DisplayDestroy () from /usr/dt/lib/libXm.so.4
#6 0xfefbece0 in XtCallCallbackList () from /usr/openwin/lib/libXt.so.4
#7 0xfefc486c in XtPhase2Destroy () from /usr/openwin/lib/libXt.so.4
#8 0xfefc45d0 in _XtDoPhase2Destroy () from /usr/openwin/lib/libXt.so.4
#9 0xfefc43b4 in XtDestroyWidget () from /usr/openwin/lib/libXt.so.4
#10 0x15cf9c in x_delete_device (d=0x523f00)
are caused by buggy Motif libraries. Installing the following patches
has been reported to solve the problem on Solaris 2.7:
107081-40 107656-07
For information (although they have not been confirmed to work), the
equivalent patches for Solaris 2.8 are:
108940-33 108652-25
--
Institute of Policy and Planning Sciences http://turnbull.sk.tsukuba.ac.jp
University of Tsukuba Tennodai 1-1-1 Tsukuba 305-8573 JAPAN
Ask not how you can "do" free software business;
ask what your business can "do for" free software.
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