godot

godot copied to clipboard

Godot version

4.0 beta 6 and latest master

System information

Arch Linux

Issue description

When running the main scene of my game, it crashes on startup without giving any errors in Godot editor's debugger.

I have run the game in gdb and here's the backtrace:

Thread 1 "godot.linuxbsd." received signal SIGSEGV, Segmentation fault.
0x0000555559eb6951 in Object::notification (this=0x55556251cc40, p_notification=1, p_reversed=true) at core/object/object.cpp:790
790             _notificationv(p_notification, p_reversed);
(gdb) bt
#0  0x0000555559eb6951 in Object::notification (this=0x55556251cc40, p_notification=1, p_reversed=true) at core/object/object.cpp:790
#1  0x0000555559eb9a1a in Object::_predelete (this=this@entry=0x55556251cc40) at core/object/object.cpp:196
#2  predelete_handler (p_object=p_object@entry=0x55556251cc40) at core/object/object.cpp:1840
#3  0x0000555558043a60 in memdelete<Node> (p_class=0x55556251cc40) at ./core/os/memory.h:104
#4  Node::_notification (this=0x555562528310, p_notification=<optimized out>) at scene/main/node.cpp:169
#5  0x0000555559eb6954 in Object::notification (this=0x555562528310, p_notification=1, p_reversed=<optimized out>) at core/object/object.cpp:790
#6  0x0000555559eb7069 in Object::_predelete (this=0x555562528310) at core/object/object.cpp:196
#7  predelete_handler (p_object=0x555562528310) at core/object/object.cpp:1840
#8  memdelete<Object> (p_class=0x555562528310) at ./core/os/memory.h:105
#9  Object::callp (this=0x555562528310, p_method=..., p_args=0x7fffffffb5a0, p_argcount=0, r_error=...) at core/object/object.cpp:702
#10 0x0000555559c838ca in Variant::callp (this=<optimized out>, p_method=..., p_args=0x7fffffffb5a0, p_argcount=0, r_ret=..., r_error=...) at core/variant/variant_call.cpp:1048
#11 0x0000555556478f51 in GDScriptFunction::call (this=<optimized out>, p_instance=<optimized out>, p_instance@entry=0x555562589390, p_args=p_args@entry=0x7fffffffbb60, p_argcount=p_argcount@entry=0, r_err=..., p_state=<optimized out>) at modules/gdscript/gdscript_vm.cpp:1555
#12 0x000055555634982d in GDScriptInstance::callp (this=0x555562589390, p_method=..., p_args=0x7fffffffbb60, p_argcount=0, r_error=...) at modules/gdscript/gdscript.cpp:1827
#13 0x0000555559eb7034 in Object::callp (this=0x555562589430, p_method=..., p_args=0x7fffffffbb60, p_argcount=0, r_error=...) at core/object/object.cpp:711
#14 0x0000555559c838ca in Variant::callp (this=<optimized out>, p_method=..., p_args=0x7fffffffbb60, p_argcount=0, r_ret=..., r_error=...) at core/variant/variant_call.cpp:1048
#15 0x0000555556478f51 in GDScriptFunction::call (this=<optimized out>, p_instance=<optimized out>, p_instance@entry=0x555562589390, p_args=p_args@entry=0x7fffffffc1b0, p_argcount=p_argcount@entry=1, r_err=..., p_state=<optimized out>) at modules/gdscript/gdscript_vm.cpp:1555
#16 0x000055555634982d in GDScriptInstance::callp (this=0x555562589390, p_method=..., p_args=0x7fffffffc1b0, p_argcount=1, r_error=...) at modules/gdscript/gdscript.cpp:1827
#17 0x0000555559eb7034 in Object::callp (this=0x555562589430, p_method=..., p_args=0x7fffffffc1b0, p_argcount=1, r_error=...) at core/object/object.cpp:711
#18 0x0000555559c838ca in Variant::callp (this=<optimized out>, p_method=..., p_args=0x7fffffffc1b0, p_argcount=1, r_ret=..., r_error=...) at core/variant/variant_call.cpp:1048
#19 0x0000555556478f51 in GDScriptFunction::call (this=<optimized out>, p_instance=<optimized out>, p_instance@entry=0x555562589390, p_args=p_args@entry=0x0, p_argcount=p_argcount@entry=0, r_err=..., p_state=<optimized out>) at modules/gdscript/gdscript_vm.cpp:1555
#20 0x000055555634982d in GDScriptInstance::callp (this=0x555562589390, p_method=..., p_args=0x0, p_argcount=0, r_error=...) at modules/gdscript/gdscript.cpp:1827
#21 0x0000555558044856 in Node::_gdvirtual__ready_call<false> (this=0x555562589430) at scene/main/node.h:241
#22 Node::_notification (this=0x555562589430, p_notification=<optimized out>) at scene/main/node.cpp:154
#23 0x000055555854100d in Node::_notificationv (p_reversed=false, p_notification=13, this=0x555562589430) at ./scene/main/node.h:45
#24 Node3D::_notificationv (this=0x555562589430, p_notification=13, p_reversed=<optimized out>) at scene/3d/node_3d.h:52
#25 0x0000555559eb6954 in Object::notification (this=0x555562589430, p_notification=13, p_reversed=<optimized out>) at core/object/object.cpp:790
#26 0x0000555558036026 in Node::_propagate_ready (this=0x555562589430) at scene/main/node.cpp:187
#27 0x0000555558035fc2 in Node::_propagate_ready (this=0x555562528310) at scene/main/node.cpp:179
#28 0x0000555558037ad7 in Node::_set_tree (this=0x555562528310, p_tree=0x55555f951800) at scene/main/node.cpp:2533
#29 0x0000555558042bb4 in Node::_add_child_nocheck (this=0x555561770e30, p_child=0x555562528310, p_name=...) at scene/main/node.cpp:1117
#30 0x0000555558042d34 in Node::add_child (this=0x555561770e30, p_child=0x555562528310, p_force_readable_name=<optimized out>, p_internal=Node::INTERNAL_MODE_DISABLED) at scene/main/node.cpp:1136
#31 0x000055555805553c in call_with_variant_args_helper<__UnexistingClass, Node*, bool, Node::InternalMode, 0ul, 1ul, 2ul> (r_error=..., p_args=0x7fffffffc7d0, p_method=<optimized out>, p_instance=<optimized out>) at ./core/variant/binder_common.h:262
#32 call_with_variant_args_dv<__UnexistingClass, Node*, bool, Node::InternalMode> (default_values=..., r_error=..., p_argcount=<optimized out>, p_args=<optimized out>, p_method=<optimized out>, p_instance=<optimized out>) at ./core/variant/binder_common.h:409
#33 MethodBindT<Node*, bool, Node::InternalMode>::call (this=<optimized out>, p_object=<optimized out>, p_args=<optimized out>, p_arg_count=<optimized out>, r_error=...) at ./core/object/method_bind.h:320
#34 0x0000555556479002 in GDScriptFunction::call (this=<optimized out>, p_instance=<optimized out>, p_instance@entry=0x555560cf7d50, p_args=p_args@entry=0x0, p_argcount=p_argcount@entry=0, r_err=..., p_state=<optimized out>) at modules/gdscript/gdscript_vm.cpp:1644
#35 0x000055555634982d in GDScriptInstance::callp (this=0x555560cf7d50, p_method=..., p_args=0x0, p_argcount=0, r_error=...) at modules/gdscript/gdscript.cpp:1827
#36 0x0000555558044856 in Node::_gdvirtual__ready_call<false> (this=0x55555eb9fec0) at scene/main/node.h:241
#37 Node::_notification (this=0x55555eb9fec0, p_notification=<optimized out>) at scene/main/node.cpp:154
#38 0x0000555559eb6954 in Object::notification (this=0x55555eb9fec0, p_notification=13, p_reversed=<optimized out>) at core/object/object.cpp:790
#39 0x0000555558036026 in Node::_propagate_ready (this=0x55555eb9fec0) at scene/main/node.cpp:187
#40 0x0000555558037ad7 in Node::_set_tree (this=0x55555eb9fec0, p_tree=0x55555f951800) at scene/main/node.cpp:2533
#41 0x0000555558042bb4 in Node::_add_child_nocheck (this=0x55555f958b50, p_child=0x55555eb9fec0, p_name=...) at scene/main/node.cpp:1117
#42 0x0000555558042d34 in Node::add_child (this=0x55555f958b50, p_child=0x55555eb9fec0, p_force_readable_name=<optimized out>, p_internal=Node::INTERNAL_MODE_DISABLED) at scene/main/node.cpp:1136
#43 0x000055555805553c in call_with_variant_args_helper<__UnexistingClass, Node*, bool, Node::InternalMode, 0ul, 1ul, 2ul> (r_error=..., p_args=0x7fffffffcfe0, p_method=<optimized out>, p_instance=<optimized out>) at ./core/variant/binder_common.h:262
#44 call_with_variant_args_dv<__UnexistingClass, Node*, bool, Node::InternalMode> (default_values=..., r_error=..., p_argcount=<optimized out>, p_args=<optimized out>, p_method=<optimized out>, p_instance=<optimized out>) at ./core/variant/binder_common.h:409
#45 MethodBindT<Node*, bool, Node::InternalMode>::call (this=<optimized out>, p_object=<optimized out>, p_args=<optimized out>, p_arg_count=<optimized out>, r_error=...) at ./core/object/method_bind.h:320
#46 0x0000555556479002 in GDScriptFunction::call (this=<optimized out>, p_instance=<optimized out>, p_instance@entry=0x55555ff7bb60, p_args=p_args@entry=0x7fffffffd798, p_argcount=p_argcount@entry=0, r_err=..., p_state=<optimized out>) at modules/gdscript/gdscript_vm.cpp:1644
#47 0x000055555634982d in GDScriptInstance::callp (this=0x55555ff7bb60, p_method=..., p_args=0x7fffffffd798, p_argcount=0, r_error=...) at modules/gdscript/gdscript.cpp:1827
#48 0x0000555559eb7034 in Object::callp (this=0x555560203d50, p_method=..., p_args=0x7fffffffd798, p_argcount=0, r_error=...) at core/object/object.cpp:711
#49 0x0000555559c838ca in Variant::callp (this=<optimized out>, p_method=..., p_args=0x7fffffffd798, p_argcount=0, r_ret=..., r_error=...) at core/variant/variant_call.cpp:1048
#50 0x0000555556478f51 in GDScriptFunction::call (this=<optimized out>, p_instance=<optimized out>, p_instance@entry=0x55555ff7bb60, p_args=p_args@entry=0x7fffffffdb98, p_argcount=p_argcount@entry=1, r_err=..., p_state=<optimized out>) at modules/gdscript/gdscript_vm.cpp:1555
#51 0x000055555634982d in GDScriptInstance::callp (this=0x55555ff7bb60, p_method=..., p_args=0x7fffffffdb98, p_argcount=1, r_error=...) at modules/gdscript/gdscript.cpp:1827
--Type <RET> for more, q to quit, c to continue without paging--c
#52 0x00005555580440e4 in Node::_gdvirtual__process_call<false> (arg1=0.016648, this=0x555560203d50) at scene/main/node.h:237
#53 Node::_notification (this=0x555560203d50, p_notification=<optimized out>) at scene/main/node.cpp:56
#54 0x0000555558192e70 in Node::_notificationv (p_reversed=false, p_notification=17, this=0x555560203d50) at ./scene/main/node.h:45
#55 CanvasItem::_notificationv (p_reversed=false, p_notification=17, this=0x555560203d50) at ./scene/main/canvas_item.h:45
#56 Control::_notificationv (this=0x555560203d50, p_notification=17, p_reversed=<optimized out>) at scene/gui/control.h:47
#57 0x0000555559eb6954 in Object::notification (this=0x555560203d50, p_notification=17, p_reversed=<optimized out>) at core/object/object.cpp:790
#58 0x00005555580730f0 in SceneTree::_notify_group_pause (this=0x55555f951800, p_group=..., p_notification=17) at scene/main/scene_tree.cpp:871
#59 0x0000555558074fef in SceneTree::process (this=0x55555f951800, p_time=0.016648) at scene/main/scene_tree.cpp:469
#60 0x00005555560194a3 in Main::iteration () at main/main.cpp:3183
#61 0x0000555555fcc3d1 in OS_LinuxBSD::run (this=this@entry=0x7fffffffdea0) at platform/linuxbsd/os_linuxbsd.cpp:799
#62 0x0000555555fbe2e9 in main (argc=<optimized out>, argv=0x7fffffffe3f8) at platform/linuxbsd/godot_linuxbsd.cpp:73

Steps to reproduce

The only way to reproduce the issue I know is to basically run my game from the branch that has this problem.

1. Clone the game repository

git clone https://codeberg.org/Liblast/Liblast.git`
cd Liblast
# without LFS the game won't have any assets and won't run
git lfs install
git lfs pull
# checkout the branch that has the issue
git checkout g4-beta6-update
# or the exact commit I am on right now:
git checkout 73aabbe

2. Open the game in the editor to import all the assets The game project resides in Liblast/Game.
3. Start the game's main scene by hitting F5
4. See it crash without any clues

Not everything crashes the game however. For example if you run the game with --dedicated-host argument, it'll not load the Main.tscn but Dedicated.tscn and this one does not crash.

Minimal reproduction project

I have no idea on what is going on so I can't provide an MRP.

I got this output when trying out (using my PR #69224):

ERROR: Couldn't find any UPNPDevices.
   at: get_gateway (modules/upnp/upnp.cpp:268)
WARNING: UPnP didn't find a Gateway
     at: push_warning (core/variant/variant_utility.cpp:900)
SCRIPT ERROR: Parse Error: Member "focus_previous" redefined (original in native class 'Control')
          at: GDScript::reload (res://Assets/HUD/Console.gd:32)
ERROR: Node not found: "CharacterSpawner" (relative to "/root/Main/UI/Map/GameState").
   at: get_node (scene/main/node.cpp:1360)
ERROR: Node not found: "CharactersRoot" (relative to "/root/Main/UI/Map/GameState").
   at: get_node (scene/main/node.cpp:1360)
ERROR: The multiplayer instance isn't currently active.
   at: get_unique_id (modules/enet/enet_multiplayer_peer.cpp:439)
Changing map_path to res://Assets/Maps/MapA.tscn on peer 0
ERROR: Parent node is busy setting up children, `remove_child()` failed. Consider using `remove_child.call_deferred(child)` instead.
   at: remove_child (scene/main/node.cpp:1168)
ERROR: Condition "data.parent" is true.
   at: ~Node (scene/main/node.cpp:2983)

@adamscott Please check project's run commandline argments - if there's --dedicated-host there you won't be able to reproduce this. The output suggest that this is the case, because it's loading MapA which is the default.

I've bisected Liblast codebase and found the commit that has triggered this segfault: https://codeberg.org/Liblast/Liblast/issues/353

Can you still reproduce this in 4.0.3 and 4.1-beta3 or later?

@unfa So how is it looking now, with 4.1.3 or 4.2 betas? 🙃

@YuriSizov I watched the GDc (lol) talks, and I am excited to try :D At the moment I am focused on a smaller side project, but will get back in full force and test the sweat out of 4.2 stable as I suspect it'll be already there :D