Package: gnome-shell Version: 3.34.0-1 Severity: normal gnome-shell froze when I pressed Win + L to lock my session. Top showed that it was taking 100% of the CPU.
I got a couple of backtraces, it looks like it was endlessly iterating through clutter objects. First backtrace: #0 0x00007f08c8dab4bc in clutter_actor_iter_next (iter=0x7ffef11040b0, child=0x7ffef11040a8) at ../clutter/clutter/clutter-actor.c:19276 #1 0x00007f08c8dc6239 in count_expand_children (layout=0x557313abb550, container=0x557314cd9400, visible_children=0x7ffef1104178, expand_children=0x7ffef110417c) at ../clutter/clutter/clutter-box-layout.c:825 #2 0x00007f08c8dc6379 in get_preferred_size_for_opposite_orientation (self=0x557313abb550, container=0x557314cd9400, for_size=1038664, min_size_p=0x7ffef1104260, natural_size_p=0x7ffef1104264) at ../clutter/clutter/clutter-box-layout.c:571 #3 0x00007f08c88c2a8b in st_widget_get_preferred_width (self=0x557314cd9400, for_height=<optimized out>, min_width_p=0x7ffef1104260, natural_width_p=0x7ffef1104264) at ../src/st/st-widget.c:365 #4 0x00007f08c8da8824 in clutter_actor_get_preferred_width (self=0x557314cd9400, for_height=0, min_width_p=0x7ffef11042b8, natural_width_p=0x7ffef11042c0) at ../clutter/clutter/clutter-actor.c:9727 #5 0x00007f08c8da8d92 in clutter_actor_get_preferred_size (self=0x557314cd9400, min_width_p=0x0, min_height_p=0x0, natural_width_p=0x7ffef1104308, natural_height_p=0x7ffef110430c) at ../clutter/clutter/clutter-actor.c:9325 #6 0x00007f08c8da8f24 in clutter_actor_get_transformed_size (self=0x557314cd9400, width=0x7ffef11043a8, height=0x7ffef11043ac) at ../clutter/clutter/clutter-actor.c:11113 #7 0x00007f08c8da8fe2 in _clutter_actor_compute_resource_scale (self=0x7ffef11040b0, resource_scale=0x7ffef11040a8) at ../clutter/clutter/clutter-actor.c:17990 #8 0x00007f08c8da9003 in _clutter_actor_compute_resource_scale (self=0x557248e2de40, resource_scale=0x7ffef1104464) at ../clutter/clutter/clutter-actor.c:18000 #9 0x00007f08c8da910a in clutter_actor_update_resource_scale (self=<optimized out>) at ../clutter/clutter/clutter-actor.c:18047 #10 0x00007f08c8da916f in clutter_actor_update_resource_scale (self=<optimized out>) at ../clutter/clutter/clutter-actor.c:18057 #11 0x0000557328ba3030 in ?? () #12 0x0000557328ba3030 in ?? () #13 0x00007f08c88c3f6a in st_widget_map (actor=0x557328ba3030) at ../src/st/st-widget.c:487 #14 0x00007f08c8d9fe3d in clutter_actor_real_unrealize (self=0x7ffef11040b0) at ../clutter/clutter/clutter-actor.c:2161 #15 clutter_actor_real_unrealize (self=0x7ffef11040b0) at ../clutter/clutter/clutter-actor.c:2158 #16 0x00007f08c8da2e5d in clutter_actor_update_map_state (self=0x557328ba3030, change=683290672) at ../clutter/clutter/clutter-actor.c:1533 #17 0x00007f08c8da9238 in clutter_actor_real_map (self=0x557328ba3030) at ../clutter/clutter/clutter-actor.c:1634 #18 0x00007f08c88c3f6a in st_widget_map (actor=0x557314cd9400) at ../src/st/st-widget.c:487 #19 0x00007f08c8d9fe3d in clutter_actor_real_unrealize (self=0x7ffef11040b0) at ../clutter/clutter/clutter-actor.c:2161 #20 clutter_actor_real_unrealize (self=0x7ffef11040b0) at ../clutter/clutter/clutter-actor.c:2158 #21 0x00007f08c8da2e5d in clutter_actor_update_map_state (self=0x557314cd9400, change=349017088) at ../clutter/clutter/clutter-actor.c:1533 #22 0x00007f08c8da9238 in clutter_actor_real_map (self=0x557314cd9400) at ../clutter/clutter/clutter-actor.c:1634 #23 0x00007f08c88c3f6a in st_widget_map (actor=0x557313c454f0) at ../src/st/st-widget.c:487 #24 0x00007f08c8d9fe3d in clutter_actor_real_unrealize (self=0x7ffef11040b0) at ../clutter/clutter/clutter-actor.c:2161 #25 clutter_actor_real_unrealize (self=0x7ffef11040b0) at ../clutter/clutter/clutter-actor.c:2158 #26 0x00007f08c8da2e5d in clutter_actor_update_map_state (self=0x557313c454f0, change=331633904) at ../clutter/clutter/clutter-actor.c:1533 #27 0x00007f08c8da9238 in clutter_actor_real_map (self=0x557313c454f0) at ../clutter/clutter/clutter-actor.c:1634 #28 0x00007f08c88c3f6a in st_widget_map (actor=0x557314e05d60) at ../src/st/st-widget.c:487 #29 0x00007f08c8d9fe3d in clutter_actor_real_unrealize (self=0x7ffef11040b0) at ../clutter/clutter/clutter-actor.c:2161 #30 clutter_actor_real_unrealize (self=0x7ffef11040b0) at ../clutter/clutter/clutter-actor.c:2158 #31 0x00007f08c8da2e5d in clutter_actor_update_map_state (self=0x557314e05d60, change=350248288) at ../clutter/clutter/clutter-actor.c:1533 #32 0x00007f08c8da9238 in clutter_actor_real_map (self=0x557314e05d60) at ../clutter/clutter/clutter-actor.c:1634 #33 0x00007f08c88c3f6a in st_widget_map (actor=0x557314bc35b0) at ../src/st/st-widget.c:487 #34 0x00007f08c8d9fe3d in clutter_actor_real_unrealize (self=0x7ffef11040b0) at ../clutter/clutter/clutter-actor.c:2161 #35 clutter_actor_real_unrealize (self=0x7ffef11040b0) at ../clutter/clutter/clutter-actor.c:2158 #36 0x00007f08c8da2e5d in clutter_actor_update_map_state (self=0x557314bc35b0, change=347878832) at ../clutter/clutter/clutter-actor.c:1533 #37 0x00007f08c8da9238 in clutter_actor_real_map (self=0x557314bc35b0) at ../clutter/clutter/clutter-actor.c:1634 #38 0x00007f08c88c3f6a in st_widget_map (actor=0x55724a302140) at ../src/st/st-widget.c:487 #39 0x00007f08c8d9fe3d in clutter_actor_real_unrealize (self=0x7ffef11040b0) at ../clutter/clutter/clutter-actor.c:2161 #40 clutter_actor_real_unrealize (self=0x7ffef11040b0) at ../clutter/clutter/clutter-actor.c:2158 #41 0x00007f08c8da9238 in clutter_actor_real_map (self=0x55724a302140) at ../clutter/clutter/clutter-actor.c:1634 #42 0x00007f08c88c3f6a in st_widget_map (actor=0x55724a300860) at ../src/st/st-widget.c:487 #43 0x00007f08c8d9fe3d in clutter_actor_real_unrealize (self=0x7ffef11040b0) at ../clutter/clutter/clutter-actor.c:2161 #44 clutter_actor_real_unrealize (self=0x7ffef11040b0) at ../clutter/clutter/clutter-actor.c:2158 #45 0x00007f08c8dafa3a in ?? () at ../clutter/clutter/clutter-actor.c:1967 from /usr/lib/x86_64-linux-gnu/mutter-5/libmutter-clutter-5.so.0 #46 0x0000000000000002 in ?? () #47 0x0000000000000000 in ?? () Second backtrace: #0 0x00007f08c9859300 in g_type_check_instance_is_fundamentally_a () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0 #1 0x00007f08c983e745 in g_object_get_qdata () from /usr/lib/x86_64-linux-gnu/libgobject-2.0.so.0 #2 0x00007f08c8da89fc in clutter_actor_get_preferred_height (self=<optimized out>, for_width=-1, min_height_p=<optimized out>, natural_height_p=<optimized out>) at ../clutter/clutter/clutter-actor.c:9820 #3 0x00007f08c8dc576c in get_preferred_size_for_orientation (self=<optimized out>, container=<optimized out>, for_size=-1, min_size_p=0x7ffef1104080, natural_size_p=0x7ffef1104084) at ../clutter/clutter/clutter-box-layout.c:484 #4 0x00007f08c88c29fb in st_widget_get_preferred_height (self=0x557314cd9400, for_width=<optimized out>, min_height_p=0x7ffef1104080, natural_height_p=0x7ffef1104084) at ../src/st/st-widget.c:380 #5 0x00007f08c8da8ac4 in clutter_actor_get_preferred_height (self=0x557314cd9400, for_width=0, min_height_p=0x7ffef11040dc, natural_height_p=0x7ffef11040e4) at ../clutter/clutter/clutter-actor.c:9876 #6 0x00007f08c8da8d7a in clutter_actor_get_preferred_size (self=0x557314cd9400, min_width_p=0x0, min_height_p=0x0, natural_width_p=0x7ffef1104128, natural_height_p=0x7ffef110412c) at ../clutter/clutter/clutter-actor.c:9318 #7 0x00007f08c8da8f24 in clutter_actor_get_transformed_size (self=0x557314cd9400, width=0x7ffef11041c8, height=0x7ffef11041cc) at ../clutter/clutter/clutter-actor.c:11113 #8 0x00007f08c8da8fe2 in _clutter_actor_compute_resource_scale (self=0x557326b1a990, resource_scale=0x50) at ../clutter/clutter/clutter-actor.c:17990 #9 0x00007f08c8da9003 in _clutter_actor_compute_resource_scale (self=0x557248e2de40, resource_scale=0x7ffef1104344) at ../clutter/clutter/clutter-actor.c:18000 #10 0x00007f08c8da9003 in _clutter_actor_compute_resource_scale (self=0x557248e2de40, resource_scale=0x7ffef1104344) at ../clutter/clutter/clutter-actor.c:18000 #11 0x00007f08c8da9003 in _clutter_actor_compute_resource_scale (self=0x557248e2de40, resource_scale=0x7ffef1104344) at ../clutter/clutter/clutter-actor.c:18000 #12 0x00007f08c8da910a in clutter_actor_update_resource_scale (self=<optimized out>) at ../clutter/clutter/clutter-actor.c:18047 #13 0x00007f08c8da916f in clutter_actor_update_resource_scale (self=<optimized out>) at ../clutter/clutter/clutter-actor.c:18057 #14 0x0000557325d94bd0 in ?? () #15 0x0000557325d94bd0 in ?? () #16 0x00007f08c88c3f6a in st_widget_map (actor=0x557325d94bd0) at ../src/st/st-widget.c:487 #17 0x00007f08c8d9fe3d in clutter_actor_real_unrealize (self=0x557326b1a990) at ../clutter/clutter/clutter-actor.c:2161 #18 clutter_actor_real_unrealize (self=0x557326b1a990) at ../clutter/clutter/clutter-actor.c:2158 #19 0x00007f08c8da2e5d in clutter_actor_update_map_state (self=0x557325d94bd0, change=634997712) at ../clutter/clutter/clutter-actor.c:1533 #20 0x00007f08c8da9238 in clutter_actor_real_map (self=0x557325d94bd0) at ../clutter/clutter/clutter-actor.c:1634 #21 0x00007f08c88c3f6a in st_widget_map (actor=0x557325d92070) at ../src/st/st-widget.c:487 #22 0x00007f08c8d9fe3d in clutter_actor_real_unrealize (self=0x557326b1a990) at ../clutter/clutter/clutter-actor.c:2161 #23 clutter_actor_real_unrealize (self=0x557326b1a990) at ../clutter/clutter/clutter-actor.c:2158 #24 0x00007f08c8da2e5d in clutter_actor_update_map_state (self=0x557325d92070, change=634986608) at ../clutter/clutter/clutter-actor.c:1533 #25 0x00007f08c8da9238 in clutter_actor_real_map (self=0x557325d92070) at ../clutter/clutter/clutter-actor.c:1634 #26 0x00007f08c88c3f6a in st_widget_map (actor=0x557325d8eaa0) at ../src/st/st-widget.c:487 #27 0x00007f08c8d9fe3d in clutter_actor_real_unrealize (self=0x557326b1a990) at ../clutter/clutter/clutter-actor.c:2161 #28 clutter_actor_real_unrealize (self=0x557326b1a990) at ../clutter/clutter/clutter-actor.c:2158 #29 0x00007f08c8da2e5d in clutter_actor_update_map_state (self=0x557325d8eaa0, change=634972832) at ../clutter/clutter/clutter-actor.c:1533 #30 0x00007f08c8da9238 in clutter_actor_real_map (self=0x557325d8eaa0) at ../clutter/clutter/clutter-actor.c:1634 #31 0x00007f08c88c3f6a in st_widget_map (actor=0x557314cd9400) at ../src/st/st-widget.c:487 #32 0x00007f08c8d9fe3d in clutter_actor_real_unrealize (self=0x557326b1a990) at ../clutter/clutter/clutter-actor.c:2161 #33 clutter_actor_real_unrealize (self=0x557326b1a990) at ../clutter/clutter/clutter-actor.c:2158 #34 0x00007f08c8da2e5d in clutter_actor_update_map_state (self=0x557314cd9400, change=349017088) at ../clutter/clutter/clutter-actor.c:1533 #35 0x00007f08c8da9238 in clutter_actor_real_map (self=0x557314cd9400) at ../clutter/clutter/clutter-actor.c:1634 #36 0x00007f08c88c3f6a in st_widget_map (actor=0x557313c454f0) at ../src/st/st-widget.c:487 #37 0x00007f08c8d9fe3d in clutter_actor_real_unrealize (self=0x557326b1a990) at ../clutter/clutter/clutter-actor.c:2161 #38 clutter_actor_real_unrealize (self=0x557326b1a990) at ../clutter/clutter/clutter-actor.c:2158 #39 0x00007f08c8da2e5d in clutter_actor_update_map_state (self=0x557313c454f0, change=331633904) at ../clutter/clutter/clutter-actor.c:1533 #40 0x00007f08c8da9238 in clutter_actor_real_map (self=0x557313c454f0) at ../clutter/clutter/clutter-actor.c:1634 #41 0x00007f08c88c3f6a in st_widget_map (actor=0x557314e05d60) at ../src/st/st-widget.c:487 #42 0x00007f08c8d9fe3d in clutter_actor_real_unrealize (self=0x557326b1a990) at ../clutter/clutter/clutter-actor.c:2161 #43 clutter_actor_real_unrealize (self=0x557326b1a990) at ../clutter/clutter/clutter-actor.c:2158 #44 0x00007f08c8da2e5d in clutter_actor_update_map_state (self=0x557314e05d60, change=350248288) at ../clutter/clutter/clutter-actor.c:1533 #45 0x00007f08c8da9238 in clutter_actor_real_map (self=0x557314e05d60) at ../clutter/clutter/clutter-actor.c:1634 #46 0x00007f08c88c3f6a in st_widget_map (actor=0x557314bc35b0) at ../src/st/st-widget.c:487 #47 0x00007f08c8d9fe3d in clutter_actor_real_unrealize (self=0x557326b1a990) at ../clutter/clutter/clutter-actor.c:2161 #48 clutter_actor_real_unrealize (self=0x557326b1a990) at ../clutter/clutter/clutter-actor.c:2158 #49 0x00007f08c8da2e5d in clutter_actor_update_map_state (self=0x557314bc35b0, change=347878832) at ../clutter/clutter/clutter-actor.c:1533 #50 0x00007f08c8da9238 in clutter_actor_real_map (self=0x557314bc35b0) at ../clutter/clutter/clutter-actor.c:1634 #51 0x00007f08c88c3f6a in st_widget_map (actor=0x55724a302140) at ../src/st/st-widget.c:487 #52 0x00007f08c8d9fe3d in clutter_actor_real_unrealize (self=0x557326b1a990) at ../clutter/clutter/clutter-actor.c:2161 #53 clutter_actor_real_unrealize (self=0x557326b1a990) at ../clutter/clutter/clutter-actor.c:2158 #54 0x00007f08c8da9238 in clutter_actor_real_map (self=0x55724a302140) at ../clutter/clutter/clutter-actor.c:1634 #55 0x00007f08c88c3f6a in st_widget_map (actor=0x55724a300860) at ../src/st/st-widget.c:487 #56 0x00007f08c8d9fe3d in clutter_actor_real_unrealize (self=0x557326b1a990) at ../clutter/clutter/clutter-actor.c:2161 #57 clutter_actor_real_unrealize (self=0x557326b1a990) at ../clutter/clutter/clutter-actor.c:2158 #58 0x00007f08c8dafa3a in ?? () at ../clutter/clutter/clutter-actor.c:1967 from /usr/lib/x86_64-linux-gnu/mutter-5/libmutter-clutter-5.so.0 #59 0x0000000000000002 in ?? () #60 0x0000000000000000 in ?? () -- System Information: Debian Release: 10.1 APT prefers stable-updates APT policy: (570, 'stable-updates'), (570, 'stable-debug'), (570, 'stable'), (550, 'testing-debug'), (550, 'testing'), (540, 'unstable-debug'), (540, 'unstable'), (1, 'experimental-debug'), (1, 'experimental') Architecture: amd64 (x86_64) Kernel: Linux 5.2.0-0.bpo.2-amd64 (SMP w/4 CPU cores) Locale: LANG=en_GB.UTF-8, LC_CTYPE=en_GB.UTF-8 (charmap=UTF-8), LANGUAGE=en_GB.UTF-8 (charmap=UTF-8) Shell: /bin/sh linked to /bin/dash Init: systemd (via /run/systemd/system) LSM: AppArmor: enabled Versions of packages gnome-shell depends on: ii dconf-gsettings-backend [gsettings-backend] 0.30.1-2 ii evolution-data-server 3.34.0-2 ii gir1.2-accountsservice-1.0 0.6.45-2 ii gir1.2-atspi-2.0 2.34.0-2 ii gir1.2-freedesktop 1.62.0-1 ii gir1.2-gcr-3 3.28.1-1 ii gir1.2-gdesktopenums-3.0 3.34.0-1 ii gir1.2-gdm-1.0 3.34.0-1 ii gir1.2-geoclue-2.0 2.5.2-1 ii gir1.2-glib-2.0 1.62.0-1 ii gir1.2-gnomebluetooth-1.0 3.28.2-4~deb10u1 ii gir1.2-gnomedesktop-3.0 3.34.0-1 ii gir1.2-gtk-3.0 3.24.11-1 ii gir1.2-gweather-3.0 3.28.2-2 ii gir1.2-ibus-1.0 1.5.19-4+deb10u1 ii gir1.2-mutter-5 3.34.0-3 ii gir1.2-nm-1.0 1.14.6-2 ii gir1.2-nma-1.0 1.8.20-1.1 ii gir1.2-pango-1.0 1.42.4-7 ii gir1.2-polkit-1.0 0.105-25 ii gir1.2-rsvg-2.0 2.44.10-2.1 ii gir1.2-soup-2.4 2.64.2-2 ii gir1.2-upowerglib-1.0 0.99.10-1 ii gjs 1.54.3-1 ii gnome-backgrounds 3.30.0-1 ii gnome-settings-daemon 3.34.0-2 ii gnome-shell-common 3.34.0-1 ii gsettings-desktop-schemas 3.34.0-1 ii libatk-bridge2.0-0 2.34.0-3 ii libatk1.0-0 2.34.0-1 ii libc6 2.29-1 ii libcairo2 1.16.0-4 ii libcroco3 0.6.12-3 ii libecal-2.0-1 3.34.0-2 ii libedataserver-1.2-24 3.34.0-2 ii libgcr-base-3-1 3.28.1-1 ii libgdk-pixbuf2.0-0 2.38.1+dfsg-1 ii libgirepository-1.0-1 1.62.0-1 ii libgjs0g 1.58.0-1 ii libgles2 1.1.0-1 ii libglib2.0-0 2.62.0-1 ii libglib2.0-bin 2.62.0-1 ii libgnome-autoar-0-0 0.2.3-2 ii libgstreamer1.0-0 1.14.4-1 ii libgtk-3-0 3.24.11-1 ii libical3 3.0.5-2 ii libjson-glib-1.0-0 1.4.4-2 ii libmutter-5-0 3.34.0-3 ii libnm0 1.14.6-2 ii libpango-1.0-0 1.42.4-7~deb10u1 ii libpangocairo-1.0-0 1.42.4-7~deb10u1 ii libpolkit-agent-1-0 0.105-25 ii libpolkit-gobject-1-0 0.105-25 ii libpulse-mainloop-glib0 12.2-4+deb10u1 ii libpulse0 12.2-4+deb10u1 ii libsecret-1-0 0.18.7-1 ii libsystemd0 242-7 ii libwayland-server0 1.16.0-1 ii libx11-6 2:1.6.7-1 ii libxfixes3 1:5.0.3-1 ii mutter 3.34.0-3 ii python3 3.7.3-1 Versions of packages gnome-shell recommends: ii bolt 0.7-2 ii chrome-gnome-shell 10.1-5 ii gdm3 3.34.0-1 ii gkbd-capplet 3.26.1-1 ii gnome-control-center 1:3.34.0.1-1 ii gnome-user-docs 3.30.2-1 ii ibus 1.5.19-4+deb10u1 ii iio-sensor-proxy 2.4-2 ii switcheroo-control 1.2-2 ii unzip 6.0-23+deb10u1 Versions of packages gnome-shell suggests: ii gir1.2-telepathyglib-0.12 0.24.1-2 ii gir1.2-telepathylogger-0.2 0.8.2-3 Versions of packages gnome-session depends on: ii gnome-session-bin 3.34.0-1 ii gnome-session-common 3.34.0-1 ii gnome-settings-daemon 3.34.0-2 Versions of packages gnome-session suggests: ii desktop-base 10.0.2 ii gnome-keyring 3.28.2-5 Versions of packages gnome-settings-daemon depends on: ii gnome-settings-daemon-common 3.34.0-2 ii gsettings-desktop-schemas 3.34.0-1 ii libasound2 1.1.8-1 ii libc6 2.29-1 ii libcairo2 1.16.0-4 ii libcanberra-gtk3-0 0.30-7 ii libcanberra0 0.30-7 ii libcolord2 1.4.3-4 ii libcups2 2.2.10-6+deb10u1 ii libfontconfig1 2.13.1-2 ii libgcr-base-3-1 3.28.1-1 ii libgdk-pixbuf2.0-0 2.38.1+dfsg-1 ii libgeoclue-2-0 2.5.2-1 ii libgeocode-glib0 3.26.1-1 ii libglib2.0-0 2.62.0-1 pn libgnome-desktop-3-17 <none> ii libgtk-3-0 3.24.11-1 ii libgudev-1.0-0 232-2 ii libgweather-3-15 3.28.2-2 ii liblcms2-2 2.9-3 ii libmm-glib0 1.10.0-1 ii libnm0 1.14.6-2 ii libnotify4 0.7.7-4 ii libnspr4 2:4.21-2 ii libnss3 2:3.45-1 ii libpam-systemd 242-7 ii libpango-1.0-0 1.42.4-7~deb10u1 ii libpangocairo-1.0-0 1.42.4-7~deb10u1 ii libpolkit-gobject-1-0 0.105-25 ii libpulse-mainloop-glib0 12.2-4+deb10u1 ii libpulse0 12.2-4+deb10u1 ii libupower-glib3 0.99.10-1 ii libwacom2 0.32-1 ii libwayland-client0 1.16.0-1 ii libx11-6 2:1.6.7-1 ii libxext6 2:1.3.3-1+b2 ii libxi6 2:1.7.9-1 Versions of packages gnome-settings-daemon recommends: ii iio-sensor-proxy 2.4-2 ii pulseaudio 12.2-4+deb10u1 Versions of packages libgjs0g depends on: ii gir1.2-glib-2.0 1.62.0-1 ii libc6 2.29-1 ii libcairo-gobject2 1.16.0-4 ii libcairo2 1.16.0-4 ii libffi6 3.2.1-9 ii libgcc1 1:8.3.0-6 ii libgirepository-1.0-1 1.62.0-1 ii libglib2.0-0 2.62.0-1 ii libmozjs-60-0 60.2.3-3 ii libreadline8 8.0-3 ii libstdc++6 9.2.1-8 ii libx11-6 2:1.6.7-1 Versions of packages gnome-shell is related to: ii libegl-mesa0 [libegl-vendor] 18.3.6-2 ii libgl1-mesa-dri 18.3.6-2 ii libglx-mesa0 [libglx-vendor] 18.3.6-2 -- no debconf information