X protocol error: BadMatch (invalid parameter attributes) on protocol request 2
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
Backtrace:
/gnu/store/9b5ii2pbk4wbjbm6l2jl2i8spnsiznk3-emacs-26.1/bin/emacs-26.1[0x50b032]
/gnu/store/9b5ii2pbk4wbjbm6l2jl2i8spnsiznk3-emacs-26.1/bin/emacs-26.1[0x4f1f34]
/gnu/store/9b5ii2pbk4wbjbm6l2jl2i8spnsiznk3-emacs-26.1/bin/emacs-26.1[0x50b0c3]
/gnu/store/9b5ii2pbk4wbjbm6l2jl2i8spnsiznk3-emacs-26.1/bin/emacs-26.1[0x4c1171]
/gnu/store/9b5ii2pbk4wbjbm6l2jl2i8spnsiznk3-emacs-26.1/bin/emacs-26.1[0x4c4bc5]
/gnu/store/9b5ii2pbk4wbjbm6l2jl2i8spnsiznk3-emacs-26.1/bin/emacs-26.1[0x4c4c4b]
/gnu/store/8baabfjazsr7s4y0jig1sn84xnxf75xa-libx11-1.6.6/lib/libX11.so.6(_XError+0xf5)[0x7f2bca6ff475]
/gnu/store/8baabfjazsr7s4y0jig1sn84xnxf75xa-libx11-1.6.6/lib/libX11.so.6(+0x434f7)[0x7f2bca6fc4f7]
/gnu/store/8baabfjazsr7s4y0jig1sn84xnxf75xa-libx11-1.6.6/lib/libX11.so.6(+0x435a5)[0x7f2bca6fc5a5]
/gnu/store/8baabfjazsr7s4y0jig1sn84xnxf75xa-libx11-1.6.6/lib/libX11.so.6(_XReply+0x208)[0x7f2bca6fd428]
/gnu/store/8baabfjazsr7s4y0jig1sn84xnxf75xa-libx11-1.6.6/lib/libX11.so.6(+0x90bad)[0x7f2bca749bad]
/gnu/store/8baabfjazsr7s4y0jig1sn84xnxf75xa-libx11-1.6.6/lib/libX11.so.6(XkbGetUpdatedMap+0x63)[0x7f2bca749c53]
/gnu/store/8baabfjazsr7s4y0jig1sn84xnxf75xa-libx11-1.6.6/lib/libX11.so.6(XkbGetMap+0x6d)[0x7f2bca749d0d]
/gnu/store/9b5ii2pbk4wbjbm6l2jl2i8spnsiznk3-emacs-26.1/bin/emacs-26.1[0x4d1977]
/gnu/store/9b5ii2pbk4wbjbm6l2jl2i8spnsiznk3-emacs-26.1/bin/emacs-26.1[0x565d16]
/gnu/store/9b5ii2pbk4wbjbm6l2jl2i8spnsiznk3-emacs-26.1/bin/emacs-26.1[0x59ba68]
/gnu/store/9b5ii2pbk4wbjbm6l2jl2i8spnsiznk3-emacs-26.1/bin/emacs-26.1[0x565c83]
/gnu/store/9b5ii2pbk4wbjbm6l2jl2i8spnsiznk3-emacs-26.1/bin/emacs-26.1[0x59ba68]
/gnu/store/9b5ii2pbk4wbjbm6l2jl2i8spnsiznk3-emacs-26.1/bin/emacs-26.1[0x565c83]
/gnu/store/9b5ii2pbk4wbjbm6l2jl2i8spnsiznk3-emacs-26.1/bin/emacs-26.1[0x59ba68]
/gnu/store/9b5ii2pbk4wbjbm6l2jl2i8spnsiznk3-emacs-26.1/bin/emacs-26.1[0x565c83]
/gnu/store/9b5ii2pbk4wbjbm6l2jl2i8spnsiznk3-emacs-26.1/bin/emacs-26.1[0x59ba68]
/gnu/store/9b5ii2pbk4wbjbm6l2jl2i8spnsiznk3-emacs-26.1/bin/emacs-26.1[0x565c83]
/gnu/store/9b5ii2pbk4wbjbm6l2jl2i8spnsiznk3-emacs-26.1/bin/emacs-26.1[0x59ba68]
/gnu/store/9b5ii2pbk4wbjbm6l2jl2i8spnsiznk3-emacs-26.1/bin/emacs-26.1[0x564d20]
/gnu/store/9b5ii2pbk4wbjbm6l2jl2i8spnsiznk3-emacs-26.1/bin/emacs-26.1[0x56509f]
/gnu/store/9b5ii2pbk4wbjbm6l2jl2i8spnsiznk3-emacs-26.1/bin/emacs-26.1[0x568c80]
/gnu/store/9b5ii2pbk4wbjbm6l2jl2i8spnsiznk3-emacs-26.1/bin/emacs-26.1[0x5642ee]
/gnu/store/9b5ii2pbk4wbjbm6l2jl2i8spnsiznk3-emacs-26.1/bin/emacs-26.1[0x4f48dc]
/gnu/store/9b5ii2pbk4wbjbm6l2jl2i8spnsiznk3-emacs-26.1/bin/emacs-26.1[0x56428c]
/gnu/store/9b5ii2pbk4wbjbm6l2jl2i8spnsiznk3-emacs-26.1/bin/emacs-26.1[0x4f2278]
/gnu/store/9b5ii2pbk4wbjbm6l2jl2i8spnsiznk3-emacs-26.1/bin/emacs-26.1[0x4f7206]
/gnu/store/9b5ii2pbk4wbjbm6l2jl2i8spnsiznk3-emacs-26.1/bin/emacs-26.1[0x4f754b]
/gnu/store/9b5ii2pbk4wbjbm6l2jl2i8spnsiznk3-emacs-26.1/bin/emacs-26.1[0x41c67e]
/gnu/store/h90vnqw0nwd0hhm1l5dgxsdrigddfmq4-glibc-2.28/lib/libc.so.6(__libc_start_main+0xee)[0x7f2bc963ab3e]
/gnu/store/9b5ii2pbk4wbjbm6l2jl2i8spnsiznk3-emacs-26.1/bin/emacs-26.1[0x41d2ba]
aborted (core dumped)