Open bug in launchpad.net: https://bugs.launchpad.net/ubuntu/+source/virt-manager/+bug/1359815 "Double click in conection" #0 0x00007f1a2f269fb7 in _pygi_argument_from_object (object=0x3ddead0, type_info=0x0, transfer=(unknown: 1556257872)) at ../../gi/pygi-argument.c:955 length = 34440432 item_size = <optimized out> array = 0x0 item_transfer = <optimized out> i = <optimized out> is_zero_terminated = 1556257248 item_type_info = 0x3ddead0 arg = {v_boolean = 7, v_int8 = 7 '\a', v_uint8 = 7 '\a', v_int16 = 7, v_uint16 = 7, v_int32 = 7, v_uint32 = 7, v_int64 = 7, v_uint64 = 7, v_float = 9.80908925e-45, v_double = 3.4584595208887258e-323, v_short = 7, v_ushort = 7, v_int = 7, v_uint = 7, v_long = 7, v_ulong = 7, v_ssize = 7, v_size = 7, v_string = 0x7 <error: Cannot access memory at address 0x7>, v_pointer = 0x7} type_tag = <optimized out> cleanup_data = 0x0 __FUNCTION__ = "_pygi_argument_from_object" #1 0x00007f1a2e8a98ef in ffi_closure_unix64_inner (closure=0x7f1a30d08010, rvalue=0x7fff5cc29c50, reg_args=0x7fff5cc29ba0, argp=0x7fff5cc29c78 "") at ../src/x86/ffi64.c:670 cif = 0x20d8508 avalue = 0x7fff5cc29a90 arg_types = <optimized out> i = <optimized out> avn = <optimized out> gprcount = 6 ssecount = <optimized out> ngpr = 1 nsse = 0 ret = 0 #2 0x00007f1a2e8a9c66 in ffi_closure_unix64 () at ../src/x86/unix64.S:229 No locals. #3 0x00007f1a23c867c2 in gtk_cell_renderer_real_get_preferred_size (natural_size=<optimized out>, minimum_size=<optimized out>, orientation=<optimized out>, widget=<optimized out>, cell=<optimized out>) at /build/buildd/gtk+3.0-3.12.2/./gtk/gtkcellrenderer.c:1256 min_req = {width = 35941184, height = 0} #4 gtk_cell_renderer_real_get_preferred_width (cell=0x3ec2600, widget=0x0, minimum_size=0x7fff5cc29dc8, natural_size=0x7fff5cc29dcc) at /build/buildd/gtk+3.0-3.12.2/./gtk/gtkcellrenderer.c:1295 No locals. #5 0x00007f1a23c87c35 in gtk_cell_renderer_get_preferred_width (cell=cell@entry=0x2246b40, widget=widget@entry=0x21c44a0, minimum_size=minimum_size@entry=0x7fff5cc29dc8, natural_size=natural_size@entry=0x7fff5cc29dcc) at /build/buildd/gtk+3.0-3.12.2/./gtk/gtkcellrenderer.c:1479 klass = <optimized out> width = -1 __FUNCTION__ = "gtk_cell_renderer_get_preferred_width" #6 0x00007f1a23c80211 in gtk_cell_area_request_renderer (area=0x216b410, renderer=0x2246b40, orientation=GTK_ORIENTATION_HORIZONTAL, widget=0x21c44a0, for_size=-1, minimum_size=0x7fff5cc29dc8, natural_size=0x7fff5cc29dcc) at /build/buildd/gtk+3.0-3.12.2/./gtk/gtkcellarea.c:3584 focus_line_width = 2 __FUNCTION__ = "gtk_cell_area_request_renderer" #7 0x00007f1a23c80d80 in compute_size (box=0x3ec2600, box@entry=0x216b410, orientation=orientation@entry=GTK_ORIENTATION_HORIZONTAL, context=0x3, context@entry=0x2252980, widget=0x3df6cd8, widget@entry=0x21c44a0, for_size=64974016, for_size@entry=-1, minimum_size=0x3df6cc0, minimum_size@entry=0x7fff5cc29e28, natural_size=0x0) at /build/buildd/gtk+3.0-3.12.2/./gtk/gtkcellareabox.c:1524 info = 0x2248500 renderer_min_size = 40 renderer_nat_size = 40 group_min_size = 0 group_nat_size = 0 list = 0x2248500 min_size = 0 nat_size = 0 #8 0x00007f1a23c82945 in gtk_cell_area_box_get_preferred_width (area=0x216b410, context=0x2252980, widget=0x21c44a0, minimum_width=0x0, natural_width=0x0) at /build/buildd/gtk+3.0-3.12.2/./gtk/gtkcellareabox.c:1813 box = 0x216b410 box_context = 0x2252980 min_width = 34861792 nat_width = 0 #9 0x00007f1a23e6d452 in gtk_tree_view_column_cell_get_size (tree_column=tree_column@entry=0x213f390, cell_area=cell_area@entry=0x0, x_offset=x_offset@entry=0x0, y_offset=y_offset@entry=0x0, width=width@entry=0x0, height=height@entry=0x7fff5cc29f00) at /build/buildd/gtk+3.0-3.12.2/./gtk/gtktreeviewcolumn.c:2897 priv = 0x213f2e0 min_width = 0 min_height = 0 __FUNCTION__ = "gtk_tree_view_column_cell_get_size" #10 0x00007f1a23e552f8 in validate_row (tree_view=tree_view@entry=0x21c44a0, tree=0x272ccf0, node=0x272ae10, iter=iter@entry=0x7fff5cc29fc0, path=path@entry=0x3ea9d10) at /build/buildd/gtk+3.0-3.12.2/./gtk/gtktreeview.c:6224 padding = 0 original_width = 10 new_width = <optimized out> row_height = 40 column = 0x213f390 list = 0x1f4e500 first_column = <optimized out> last_column = <optimized out> height = 40 horizontal_separator = 4 vertical_separator = 0 depth = <optimized out> retval = 1 is_separator = <optimized out> draw_vgrid_lines = 0 draw_hgrid_lines = 0 focus_pad = 1 grid_line_width = 1 wide_separators = 0 separator_height = 0 expander_size = 13 #11 0x00007f1a23e59497 in validate_visible_area (tree_view=tree_view@entry=0x21c44a0) at /build/buildd/gtk+3.0-3.12.2/./gtk/gtktreeview.c:6543 allocation = {x = 0, y = 0, width = 1366, height = 628} path = 0x3ea9d10 above_path = 0x3e86e70 iter = {stamp = -1893999956, user_data = 0x272ad20, user_data2 = 0x0, user_data3 = 0x0} tree = 0x272ccf0 node = 0x272ae10 need_redraw = 0 size_changed = 0 total_height = <optimized out> area_above = <optimized out> area_below = 569 __FUNCTION__ = "validate_visible_area" #12 0x00007f1a23e59a76 in do_presize_handler (tree_view=0x21c44a0) at /build/buildd/gtk+3.0-3.12.2/./gtk/gtktreeview.c:6877 No locals. #13 0x00007f1a23e59bf9 in presize_handler_callback (widget=<optimized out>, clock=<optimized out>, unused=<optimized out>) at /build/buildd/gtk+3.0-3.12.2/./gtk/gtktreeview.c:6906 No locals. #14 0x00007f1a23e80904 in gtk_widget_on_frame_clock_update (frame_clock=0x1e63b10, widget=0x21c44a0) at /build/buildd/gtk+3.0-3.12.2/./gtk/gtkwidget.c:4836 info = 0x272ad80 next = <optimized out> priv = <optimized out> l = 0x1f91100 #15 0x00007f1a2edcb474 in ?? () No symbol table info available. #16 0x0000000000000000 in ?? () No symbol table info available.
I commented on the original launchpad issue, pretty sure this is a pygobject bug that's now fixed upstream. FWIW if a crash comes from pygi or gtk code it's usually not virt-manager's fault, since the bindings generally should protect us from crashes like that