Control: found 916012 1:26.1+1-2 running emacs-gtk 26.1 from unstable, I still get crashes on U+2728 SPARKLES . I'm also seeing a crash when trying to render U+26C4 SNOWMAN WITHOUT SNOW.
interestingly, U+1F332 EVERGREEN TREE gives no problems :) A stderr transcript from one such crash: X protocol error: BadLength (poly request too large or internal Xlib length error) on protocol request 139 When compiled with GTK, Emacs cannot recover from X disconnects. This is a GTK bug: https://bugzilla.gnome.org/show_bug.cgi?id=85715 For details, see etc/PROBLEMS. Fatal error 6: Aborted (emacs:21625): GLib-WARNING **: 17:05:05.830: g_main_context_prepare() called recursively from within a source's check() or prepare() member. (emacs:21625): GLib-WARNING **: 17:05:05.830: g_main_context_check() called recursively from within a source's check() or prepare() member. Backtrace: emacs[0x5114ae] emacs[0x4f6eda] emacs[0x511553] emacs[0x4c3f83] emacs[0x4c7da9] emacs[0x4c7e2b] /usr/lib/x86_64-linux-gnu/libX11.so.6(_XError+0x11a)[0x7f1d561cf11a] /usr/lib/x86_64-linux-gnu/libX11.so.6(+0x43077)[0x7f1d561cc077] /usr/lib/x86_64-linux-gnu/libX11.so.6(+0x4311d)[0x7f1d561cc11d] /usr/lib/x86_64-linux-gnu/libX11.so.6(_XEventsQueued+0x55)[0x7f1d561cca55] /usr/lib/x86_64-linux-gnu/libX11.so.6(XPending+0x57)[0x7f1d561be7b7] /usr/lib/x86_64-linux-gnu/libgdk-3.so.0(+0x68fad)[0x7f1d56c44fad] /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0(g_main_context_prepare+0x1c9)[0x7f1d5673e379] /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0(+0x4dd7b)[0x7f1d5673ed7b] /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0(g_main_context_pending+0x27)[0x7f1d5673ef17] /usr/lib/x86_64-linux-gnu/libgtk-3.so.0(gtk_events_pending+0xd)[0x7f1d56f143ed] emacs[0x4c4977] emacs[0x4fe129] emacs[0x4fe7d5] emacs[0x5d8aa7] emacs[0x586a84] emacs[0x5db58a] emacs[0x5db811] emacs[0x5dbb1c] emacs[0x4484c3] emacs[0x44f790] emacs[0x45458b] emacs[0x467022] emacs[0x46abeb] emacs[0x56cdf6] emacs[0x434862] emacs[0x457d75] emacs[0x459c85] emacs[0x41d152] emacs[0x56dc0c] emacs[0x5a5130] emacs[0x5704dc] emacs[0x56db8b] emacs[0x56dc98] emacs[0x56cf32] emacs[0x4f78c4] ... Aborted Regards, --dkg
