bug#22301: 25.1.50; Emacs crashes while lisp debugging

[Eli Zaretskii]

> From: Vincent Belaïche <vincentb1@users.sourceforge.net>
> Cc: Vincent Belaïche <vincent.belaiche@gmail.com> ,
>  22301@debbugs.gnu.org
> Date: Mon, 04 Jan 2016 09:00:42 +0100
> 
> Lisp Backtrace:
> "backtrace" (0xbfedac)
> "debugger-setup-buffer" (0xbfefe0)
> "debug" (0xbff1b4)
> "ses-relocate-all" (0xbff200)
> "let" (0xbff3bc)
> "ses-delete-row" (0xbff598)
> "funcall-interactively" (0xbff594)
> "call-interactively" (0xbff710)
> "command-execute" (0xbff8dc)
> (gdb) xbacktrace
> "backtrace" (0xbfedac)
> "debugger-setup-buffer" (0xbfefe0)
> "debug" (0xbff1b4)
> "ses-relocate-all" (0xbff200)
> "let" (0xbff3bc)
> "ses-delete-row" (0xbff598)
> "funcall-interactively" (0xbff594)
> "call-interactively" (0xbff710)
> "command-execute" (0xbff8dc)
> (gdb)
> --8<----8<----8<----8<----8<--  end  -->8---->8---->8---->8---->8----
> 
> The debugging session is still opened, so please feel free to give
> instructions if you want further details.

Thanks.  Please type this at GDB prompt:

 (gdb) thread 1
 (gdb) thread apply all bt

and post here everything that GDB produces.

Please leave the debugging session running after you do that, in case
we will need to ask you to look around some more.