Please write in English if possible, because the Emacs maintainers usually do not have translators to read other languages for them. Your bug report will be posted to the emacs-pretest-bug@gnu.org mailing list. Please describe exactly what actions triggered the bug and the precise symptoms of the bug: 1) Start 'emacs -nw -q' 2) M-x xterm-mouse-mode 3) M-x server-start 4) In another xterm, start 'emacsclient -t' 5) C-z Emacs segfault. This was tested with latest CVS checkout. Backtrace: