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[79.227.164.235]) by smtp.gmail.com with ESMTPSA id m24-20020a17090607d800b00a524216fe78sm10815176ejc.64.2024.04.26.09.57.33 (version=TLS1_3 cipher=TLS_AES_256_GCM_SHA384 bits=256/256); Fri, 26 Apr 2024 09:57:34 -0700 (PDT) In-Reply-To: <87r0esdv7o.fsf@gmail.com> (Helmut Eller's message of "Fri, 26 Apr 2024 17:01:15 +0200") Received-SPF: pass client-ip=2a00:1450:4864:20::534; envelope-from=gerd.moellmann@gmail.com; helo=mail-ed1-x534.google.com X-Spam_score_int: -20 X-Spam_score: -2.1 X-Spam_bar: -- X-Spam_report: (-2.1 / 5.0 requ) BAYES_00=-1.9, DKIM_SIGNED=0.1, DKIM_VALID=-0.1, DKIM_VALID_AU=-0.1, DKIM_VALID_EF=-0.1, FREEMAIL_FROM=0.001, RCVD_IN_DNSWL_NONE=-0.0001, SPF_HELO_NONE=0.001, SPF_PASS=-0.001 autolearn=ham autolearn_force=no X-Spam_action: no action X-BeenThere: emacs-devel@gnu.org X-Mailman-Version: 2.1.29 Precedence: list List-Id: "Emacs development discussions." List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , Errors-To: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Original-Sender: emacs-devel-bounces+ged-emacs-devel=m.gmane-mx.org@gnu.org Xref: news.gmane.io gmane.emacs.devel:318146 Archived-At: Helmut Eller writes: > I have a nice test case, that crashes both GUI and tty versions. Can > you reproduce this? > > ./src/emacs -nw -Q --eval > '(progn (view-hello-file) (redisplay) (igc--collect) (forward-line))' For me, it's echo_area_window, which is AFAICS not staticpro'd (booooh to myself). That leads to XWINDOW accessing a window that has been moved away. Haven't had to look further. There are quite some other global vars in xdisp.c that need staticpros. And there are non-Lisp_Object which need something similar (struct buffer *, for example). One could use void igc_root_create_exact_ptr (void *var_addr); for them, or make them Lisp_Objects and staticpro. Please let me know if someone of you wants to work on this.