On 2010-11-24 14:46 +0100, Friedrich Delgado wrote:
> Package: emacs
> Version: 23.2+1-4
> Severity: important
>
> emacs infrequently crashes for me. Unfortunately I'm not able to get a
> meaningful backtrace, despite at least trying to follow
> http://wiki.debian.org/HowToGetABacktrace
>
> Since the crashes happen only about once every 2 days, and I have no
> idea under which circumstances they occur, I'm a bit reluctant to run
> emacs in gdb all the time.
Still, that would be your best bet. And run it from the build directory
because that contains a .gdbinit file that makes gdb understand Lisp
backtraces via the `xbacktrace' command. See
/usr/share/emacs/23.2/etc/DEBUG for details.
> I installed the debugging packages I *could* find, however there seem
> to be quite a lot of symbols missing.
>
> However I already did
>
> DEB_BUILD_OPTIONS="nostrip noopt" fakeroot apt-get -b source emacs
Building without optimization could very well mean that you're not able
to reproduce the crashes anymore.
> and installed the resulting packages, so the next backtrace hopefully
> should contain more interesting information.
>
> ,----[ start of backtrace ]
> Core was generated by `emacs'.
> Program terminated with signal 11, Segmentation fault.
> #0 0x00007fa5a2497447 in kill () at ../sysdeps/unix/syscall-template.S:82
> 82 ../sysdeps/unix/syscall-template.S: Datei oder Verzeichnis nicht
> gefunden.
> in ../sysdeps/unix/syscall-template.S
> (gdb) thread apply all bt full
>
> Thread 1 (Thread 2858):
> #0 0x00007fa5a2497447 in kill () at ../sysdeps/unix/syscall-template.S:82
> No locals.
> #1 0x00000000004e4651 in ?? ()
> No symbol table info available.
> #2 <signal handler called>
> No symbol table info available.
> #3 0x00007fa5a5f82030 in g_type_check_instance_cast () from
> /usr/lib/libgobject-2.0.so.0
> No symbol table info available.
> #4 0x00007fa59dc03bf5 in ca_gtk_context_get_for_screen () from
> /usr/lib/libcanberra-gtk.so.0
> No symbol table info available.
> #5 0x00007fa59dc0419d in ca_gtk_play_for_widget () from
> /usr/lib/libcanberra-gtk.so.0
> No symbol table info available.
> #6 0x00007fa59de2c20a in ?? () from
> /usr/lib/gtk-2.0/modules/libcanberra-gtk-module.so
> No symbol table info available.
> #7 0x00007fa59de2d3b3 in ?? () from
> /usr/lib/gtk-2.0/modules/libcanberra-gtk-module.so
> No symbol table info available.
> #8 0x00007fa5a78e8d26 in ?? () from /usr/lib/libgdk-x11-2.0.so.0
> No symbol table info available.
> #9 0x00007fa5a56a96f2 in g_main_context_dispatch () from
> /lib/libglib-2.0.so.0
> No symbol table info available.
> #10 0x00007fa5a56ad568 in ?? () from /lib/libglib-2.0.so.0
> No symbol table info available.
> #11 0x00007fa5a56ad71c in g_main_context_iteration () from
> /lib/libglib-2.0.so.0
> No symbol table info available.
> #12 0x00007fa5a7cb2561 in gtk_main_iteration () from
> /usr/lib/libgtk-x11-2.0.so.0
> No symbol table info available.
> #13 0x00000000004a907c in ?? ()
> `----
You want to install the libgtk2.0-0-dbg and libglib2.0-0-dbg packages.
Cheers,
Sven
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