0000402: crash on "revert to worldspawn" - The Dark Mod Bugtracker

ID	Project	Category	View Status	Date Submitted	Last Update

0000402	DarkRadiant	Map Editing	public	01.11.2007 14:33	11.04.2008 21:11

Reporter	tels	Assigned To	tels
Priority	normal	Severity	crash	Reproducibility	always
Status	closed	Resolution	fixed
Product Version	0.9.4
Target Version	0.9.6	Fixed in Version	0.9.6

Summary	0000402: crash on "revert to worldspawn"
Description	Under Linux: * start DR * create a brush of any size * select "Patch -> Simple Patch mesh" (CTRL-P) * accept defaults * right click newly created patch, select "convert to func static" * right click same patch, select "convert back to worldspawn" Crash!
Additional Information	Backtrace: Program received signal SIGSEGV, Segmentation fault. [Switching to Thread 47408244761392 (LWP 9303)] 0x00002b1e1462f891 in __dynamic_cast () from /usr/lib/libstdc++.so.6 (gdb) bt #0 0x00002b1e1462f891 in __dynamic_cast () from /usr/lib/libstdc++.so.6 0000001 0x000000000061d848 in selection::algorithm::ReparentToEntityWalker::post () 0000002 0x0000000000715807 in CompiledGraph::traverse_subgraph () 0000003 0x0000000000715949 in CompiledGraph::traverse_subgraph () 0000004 0x000000000061c5be in selection::algorithm::revertGroupToWorldSpawn () 0000005 0x00002b1e136367da in g_closure_invoke () from /usr/lib/libgobject-2.0.so.0 0000006 0x00002b1e13646408 in ?? () from /usr/lib/libgobject-2.0.so.0 0000007 0x00002b1e13647843 in g_signal_emit_valist () from /usr/lib/libgobject-2.0.so.0 #8 0x00002b1e13647a13 in g_signal_emit () from /usr/lib/libgobject-2.0.so.0 0000009 0x00002b1e112bfe0a in gtk_widget_activate () from /usr/lib/libgtk-x11-2.0.so.0 0000010 0x00002b1e111ca450 in gtk_menu_shell_activate_item () from /usr/lib/libgtk-x11-2.0.so.0 0000011 0x00002b1e111cb900 in ?? () from /usr/lib/libgtk-x11-2.0.so.0 0000012 0x00002b1e111be68d in _gtk_marshal_BOOLEAN__BOXED () from /usr/lib/libgtk-x11-2.0.so.0 0000013 0x00002b1e136367da in g_closure_invoke () from /usr/lib/libgobject-2.0.so.0 0000014 0x00002b1e13646a18 in ?? () from /usr/lib/libgobject-2.0.so.0 0000015 0x00002b1e13647617 in g_signal_emit_valist () from /usr/lib/libgobject-2.0.so.0 0000016 0x00002b1e13647a13 in g_signal_emit () from /usr/lib/libgobject-2.0.so.0 0000017 0x00002b1e112bc13e in ?? () from /usr/lib/libgtk-x11-2.0.so.0 0000018 0x00002b1e111b7c7d in gtk_propagate_event () from /usr/lib/libgtk-x11-2.0.so.0 0000019 0x00002b1e111b8c91 in gtk_main_do_event () from /usr/lib/libgtk-x11-2.0.so.0 0000020 0x00002b1e1165f45c in ?? () from /usr/lib/libgdk-x11-2.0.so.0 0000021 0x00002b1e10ac4a14 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0 0000022 0x00002b1e10ac785d in ?? () from /usr/lib/libglib-2.0.so.0 0000023 0x00002b1e10ac7b6a in g_main_loop_run () from /usr/lib/libglib-2.0.so.0 0000024 0x00002b1e111b9023 in gtk_main () from /usr/lib/libgtk-x11-2.0.so.0 0000025 0x00000000004d5909 in main ()
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greebo 26.11.2007 21:59 administrator ~0000892	Confirmed. This crash is systematic due to the way the TraversableNodeSet crap handles child removals and additions. Once removed, the child gets "uninstantiated", i.e. the Instance is deleted from the heap, only to be instantiated (allocated) again when being inserted to worldspawn. The only reason why this wasn't observed in "live" releases (Windows target) is due to the way release builds manage the heap. Accesses to the released memory obviously don't crash in release builds, but they sure will raise a segfault in debug builds. So in short, revert to worldspawn should always crash in principle, but it doesn't due to the release build's grace. This will need some special thought and a sharp knife. Changing stuff in the TraversableNodeSet affects the core of the GtkRadiant scenegraph. A tricky task.

greebo 11.03.2008 19:45 administrator ~0001087	This is fixed in the scenegraph refactor branch. I'll set this to resolved as soon as the changes are in the trunk.

Date Modified	Username	Field	Change
01.11.2007 14:33	tels	New Issue
02.11.2007 17:55	greebo	Category	General => Map Editing
02.11.2007 17:55	greebo	Status	new => acknowledged
26.11.2007 21:59	greebo	Note Added: 0000892
26.11.2007 21:59	greebo	Assigned To	=> greebo
26.11.2007 21:59	greebo	Status	acknowledged => confirmed
11.03.2008 19:45	greebo	Note Added: 0001087
14.03.2008 19:15	greebo	Status	confirmed => assigned
14.03.2008 19:15	greebo	Assigned To	greebo => tels
19.03.2008 20:41	greebo	Relationship added	child of 0000463
19.03.2008 20:41	greebo	Status	assigned => resolved
19.03.2008 20:41	greebo	Fixed in Version	=> 0.9.6
19.03.2008 20:41	greebo	Resolution	open => fixed
19.03.2008 20:41	greebo	Projection	none => redesign
19.03.2008 20:41	greebo	Build	=> 3260
19.03.2008 20:41	greebo	Target Version	=> 0.9.6
11.04.2008 21:11	greebo	Status	resolved => closed