Bug#956443:

I can reproduce this with current Emacs master. I encourage you to report this to the Emacs developers using M-x report-emacs-bug.

Bug#956443: terminal emacs segfaults if displaying space with display property specifying space width in terms of in,mm or cm.

better valgrind output. ==27514== Memcheck, a memory error detector ==27514== Copyright (C) 2002-2017, and GNU GPL'd, by Julian Seward et al. ==27514== Using Valgrind-3.15.0 and LibVEX; rerun with -h for copyright info ==27514== Command: /usr/bin/emacs -nw ==27514== Parent PID: 27439 ==27514== ==

Bug#956443: terminal emacs segfaults if displaying space with display property specifying space width in terms of in,mm or cm.

Package: emacs Version: 1:26.1+1-4 Severity: normal Tags: newcomer Dear Maintainer, (insert (propertize " " 'display '(space . (:width (3 . mm) executing this elisp snippet in terminal emacs segfaults. -- System Information: Debian Release: bullseye/sid APT prefers testing APT policy: