[Bug]: Crashes when going to previous screen after destroy event

[donovanglover]

Describe the bug

Crashes when pressing the back button after muting an account from their profile page.

Steps To Reproduce

1. Open a profile page from the home timeline
2. Mute the account from the dropdown
3. Press the back button and get SIGSEGV'd

Logs and/or Screenshots

(dev.geopjr.Tuba:279158): Tuba-DEBUG: 19:32:51.107: Network.vala:65: GET: https://example.com/api/v1/accounts/<account>/statuses?only_media=false&exclude_replies=true&limit=20
(dev.geopjr.Tuba:279158): Tuba-DEBUG: 19:32:51.107: Network.vala:65: GET: https://example.com/api/v1/accounts/<account>/statuses?pinned=true
(dev.geopjr.Tuba:279158): Tuba-DEBUG: 19:32:57.422: Network.vala:65: POST: https://example.com/api/v1/accounts/<account>/mute
(dev.geopjr.Tuba:279158): Tuba-DEBUG: 19:32:57.886: Relationship.vala:90: Performed "mute" on Relationship <account>
(dev.geopjr.Tuba:279158): Tuba-DEBUG: 19:32:58.080: Streams.vala:131: https://example.com/api/v1/streaming?stream=user: delete for TubaViewsHome
(dev.geopjr.Tuba:279158): Tuba-DEBUG: 19:32:58.082: Status.vala:238: Destroying Status widget
(dev.geopjr.Tuba:279158): Tuba-DEBUG: 19:32:58.083: Item.vala:126: Destroying Attachment.Item widget
(dev.geopjr.Tuba:279158): Tuba-DEBUG: 19:32:58.083: Status.vala:4: [OBJ] Destroyed https://example.com/users/<account_that_boosted_muted_account>/statuses/<boosted_status>/activity
(dev.geopjr.Tuba:279158): Tuba-DEBUG: 19:32:58.083: Status.vala:4: [OBJ] Destroyed https://example.org/users/<muted_account>/statuses/<status_from_muted_account>
fish: Job 1, 'LANG=en_US.UTF-8 G_MESSAGES_DEB…' terminated by signal SIGSEGV (Address boundary error)

Instance Backend

Mastodon

Operating System

NixOS unstable

Package

OS repositories

Troubleshooting information

os: NixOS 24.11 (Vicuna)
prefix: /nix/store/d88ydx78bicw9g85kx4rq8jcn64v3qx2-tuba-0.8.1
flatpak: false
version: 0.8.1 (production)
gtk: 4.14.4 (4.14.4)
libadwaita: 1.5.2 (1.5.2)
libsoup: 3.4.4 (3.4.4)
libgtksourceview: 5.12.1 (5.12.1)

Additional Context

Related: #337

[GeopJr]

Thanks for raising this issue!

Can you reproduce it reliably? A similar situation was reported on matrix but I can't reproduce neither that or this one. It's unrelated to the delete request and I'm going to need a debugger backtrace. Here's the steps if you are interested in fetching it (though I don't know if nix complicates it):

• gdb <command you use to run tuba>
• (gdb) run
• Reproduce it
• (gdb) backtrace

[donovanglover]

Yes I can reproduce it every time. Hope this helps!

Thread 1 ".dev.geopjr.Tub" received signal SIGSEGV, Segmentation fault.
0x00007ffff6a9f1f9 in gtk_widget_grab_focus () from /nix/store/3nfswm4lgdllaqbb7qf32n0bm5zlwhsh-gtk4-4.14.4/lib/libgtk-4.so.1
(gdb) backtrace
#0  0x00007ffff6a9f1f9 in gtk_widget_grab_focus () from /nix/store/3nfswm4lgdllaqbb7qf32n0bm5zlwhsh-gtk4-4.14.4/lib/libgtk-4.so.1
#1  0x000000000048e554 in tuba_dialogs_main_window_on_popped ()
#2  0x00007ffff7d60961 in g_cclosure_marshal_VOID__OBJECTv () from /nix/store/nm9608b5y801fq2p73nl7k80z8kcbmh2-glib-2.80.2/lib/libgobject-2.0.so.0
#3  0x00007ffff7d5d861 in _g_closure_invoke_va () from /nix/store/nm9608b5y801fq2p73nl7k80z8kcbmh2-glib-2.80.2/lib/libgobject-2.0.so.0
#4  0x00007ffff7d736ac in signal_emit_valist_unlocked () from /nix/store/nm9608b5y801fq2p73nl7k80z8kcbmh2-glib-2.80.2/lib/libgobject-2.0.so.0
#5  0x00007ffff7d792d2 in g_signal_emit_valist () from /nix/store/nm9608b5y801fq2p73nl7k80z8kcbmh2-glib-2.80.2/lib/libgobject-2.0.so.0
#6  0x00007ffff7d7937f in g_signal_emit () from /nix/store/nm9608b5y801fq2p73nl7k80z8kcbmh2-glib-2.80.2/lib/libgobject-2.0.so.0
#7  0x00007ffff6684fa1 in pop_from_stack () from /nix/store/2mijdmb6vsjb1wlvzjmwwdqfmrmg520h-libadwaita-1.5.2/lib/libadwaita-1.so.0
#8  0x00007ffff6686bf9 in adw_navigation_view_pop () from /nix/store/2mijdmb6vsjb1wlvzjmwwdqfmrmg520h-libadwaita-1.5.2/lib/libadwaita-1.so.0
#9  0x00007ffff6686c79 in navigation_pop_cb () from /nix/store/2mijdmb6vsjb1wlvzjmwwdqfmrmg520h-libadwaita-1.5.2/lib/libadwaita-1.so.0
#10 0x00007ffff7d5d861 in _g_closure_invoke_va () from /nix/store/nm9608b5y801fq2p73nl7k80z8kcbmh2-glib-2.80.2/lib/libgobject-2.0.so.0
#11 0x00007ffff7d736ac in signal_emit_valist_unlocked () from /nix/store/nm9608b5y801fq2p73nl7k80z8kcbmh2-glib-2.80.2/lib/libgobject-2.0.so.0
#12 0x00007ffff7d792d2 in g_signal_emit_valist () from /nix/store/nm9608b5y801fq2p73nl7k80z8kcbmh2-glib-2.80.2/lib/libgobject-2.0.so.0
#13 0x00007ffff7d7937f in g_signal_emit () from /nix/store/nm9608b5y801fq2p73nl7k80z8kcbmh2-glib-2.80.2/lib/libgobject-2.0.so.0
#14 0x00007ffff68d9839 in _gtk_marshal_VOID__INT_DOUBLE_DOUBLEv () from /nix/store/3nfswm4lgdllaqbb7qf32n0bm5zlwhsh-gtk4-4.14.4/lib/libgtk-4.so.1
#15 0x00007ffff7d5d861 in _g_closure_invoke_va () from /nix/store/nm9608b5y801fq2p73nl7k80z8kcbmh2-glib-2.80.2/lib/libgobject-2.0.so.0
#16 0x00007ffff7d736ac in signal_emit_valist_unlocked () from /nix/store/nm9608b5y801fq2p73nl7k80z8kcbmh2-glib-2.80.2/lib/libgobject-2.0.so.0
#17 0x00007ffff7d792d2 in g_signal_emit_valist () from /nix/store/nm9608b5y801fq2p73nl7k80z8kcbmh2-glib-2.80.2/lib/libgobject-2.0.so.0
#18 0x00007ffff7d7937f in g_signal_emit () from /nix/store/nm9608b5y801fq2p73nl7k80z8kcbmh2-glib-2.80.2/lib/libgobject-2.0.so.0
#19 0x00007ffff69877ae in gtk_gesture_click_end () from /nix/store/3nfswm4lgdllaqbb7qf32n0bm5zlwhsh-gtk4-4.14.4/lib/libgtk-4.so.1
#20 0x00007ffff7d606b2 in g_cclosure_marshal_VOID__BOXEDv () from /nix/store/nm9608b5y801fq2p73nl7k80z8kcbmh2-glib-2.80.2/lib/libgobject-2.0.so.0
#21 0x00007ffff7d5d861 in _g_closure_invoke_va () from /nix/store/nm9608b5y801fq2p73nl7k80z8kcbmh2-glib-2.80.2/lib/libgobject-2.0.so.0
#22 0x00007ffff7d736ac in signal_emit_valist_unlocked () from /nix/store/nm9608b5y801fq2p73nl7k80z8kcbmh2-glib-2.80.2/lib/libgobject-2.0.so.0
#23 0x00007ffff7d792d2 in g_signal_emit_valist () from /nix/store/nm9608b5y801fq2p73nl7k80z8kcbmh2-glib-2.80.2/lib/libgobject-2.0.so.0
#24 0x00007ffff7d7937f in g_signal_emit () from /nix/store/nm9608b5y801fq2p73nl7k80z8kcbmh2-glib-2.80.2/lib/libgobject-2.0.so.0
#25 0x00007ffff6984783 in _gtk_gesture_check_recognized () from /nix/store/3nfswm4lgdllaqbb7qf32n0bm5zlwhsh-gtk4-4.14.4/lib/libgtk-4.so.1
#26 0x00007ffff6985edb in gtk_gesture_handle_event () from /nix/store/3nfswm4lgdllaqbb7qf32n0bm5zlwhsh-gtk4-4.14.4/lib/libgtk-4.so.1
#27 0x00007ffff6988e16 in gtk_gesture_single_handle_event () from /nix/store/3nfswm4lgdllaqbb7qf32n0bm5zlwhsh-gtk4-4.14.4/lib/libgtk-4.so.1
#28 0x00007ffff6955566 in gtk_event_controller_handle_event () from /nix/store/3nfswm4lgdllaqbb7qf32n0bm5zlwhsh-gtk4-4.14.4/lib/libgtk-4.so.1
#29 0x00007ffff6a9dd88 in gtk_widget_run_controllers () from /nix/store/3nfswm4lgdllaqbb7qf32n0bm5zlwhsh-gtk4-4.14.4/lib/libgtk-4.so.1
#30 0x00007ffff6aa558e in _gtk_widget_captured_event () from /nix/store/3nfswm4lgdllaqbb7qf32n0bm5zlwhsh-gtk4-4.14.4/lib/libgtk-4.so.1
#31 0x00007ffff69c6b8e in gtk_propagate_event_internal () from /nix/store/3nfswm4lgdllaqbb7qf32n0bm5zlwhsh-gtk4-4.14.4/lib/libgtk-4.so.1
#32 0x00007ffff69c7395 in gtk_main_do_event () from /nix/store/3nfswm4lgdllaqbb7qf32n0bm5zlwhsh-gtk4-4.14.4/lib/libgtk-4.so.1
#33 0x00007ffff6c2e25c in _gdk_marshal_BOOLEAN__POINTERv () from /nix/store/3nfswm4lgdllaqbb7qf32n0bm5zlwhsh-gtk4-4.14.4/lib/libgtk-4.so.1
#34 0x00007ffff6cb70f7 in gdk_surface_event_marshallerv () from /nix/store/3nfswm4lgdllaqbb7qf32n0bm5zlwhsh-gtk4-4.14.4/lib/libgtk-4.so.1
#35 0x00007ffff7d5d861 in _g_closure_invoke_va () from /nix/store/nm9608b5y801fq2p73nl7k80z8kcbmh2-glib-2.80.2/lib/libgobject-2.0.so.0
#36 0x00007ffff7d729a8 in signal_emit_valist_unlocked () from /nix/store/nm9608b5y801fq2p73nl7k80z8kcbmh2-glib-2.80.2/lib/libgobject-2.0.so.0
#37 0x00007ffff7d792d2 in g_signal_emit_valist () from /nix/store/nm9608b5y801fq2p73nl7k80z8kcbmh2-glib-2.80.2/lib/libgobject-2.0.so.0
#38 0x00007ffff7d7937f in g_signal_emit () from /nix/store/nm9608b5y801fq2p73nl7k80z8kcbmh2-glib-2.80.2/lib/libgobject-2.0.so.0
#39 0x00007ffff6cba8a7 in gdk_surface_handle_event () from /nix/store/3nfswm4lgdllaqbb7qf32n0bm5zlwhsh-gtk4-4.14.4/lib/libgtk-4.so.1
#40 0x00007ffff6c43c4a in gdk_event_source_dispatch () from /nix/store/3nfswm4lgdllaqbb7qf32n0bm5zlwhsh-gtk4-4.14.4/lib/libgtk-4.so.1
#41 0x00007ffff7ed0f74 in g_main_dispatch () from /nix/store/nm9608b5y801fq2p73nl7k80z8kcbmh2-glib-2.80.2/lib/libglib-2.0.so.0
#42 0x00007ffff7ed3ff7 in g_main_context_iterate_unlocked.isra () from /nix/store/nm9608b5y801fq2p73nl7k80z8kcbmh2-glib-2.80.2/lib/libglib-2.0.so.0
#43 0x00007ffff7ed45ec in g_main_context_iteration () from /nix/store/nm9608b5y801fq2p73nl7k80z8kcbmh2-glib-2.80.2/lib/libglib-2.0.so.0
#44 0x00007ffff7ba2d1d in g_application_run () from /nix/store/nm9608b5y801fq2p73nl7k80z8kcbmh2-glib-2.80.2/lib/libgio-2.0.so.0
#45 0x000000000044ec2e in main ()
(gdb) 

[GeopJr]

Thank you so much! Yes that was very helpful!

I'm positive that #1061 will fix it, but if it's not too troublesome and you want to confirm, try applying this patch: https://patch-diff.githubusercontent.com/raw/GeopJr/Tuba/pull/1061.patch

[donovanglover]

Seems to have fixed it partially but I still get SIGSEGVs occasionally when doing things like pressing the back button twice in a row. Here's a backtrace:

Thread 1 ".dev.geopjr.Tub" received signal SIGSEGV, Segmentation fault.
0x000000000048e56e in tuba_dialogs_main_window_on_popped ()
(gdb) backtrace 
#0  0x000000000048e56e in tuba_dialogs_main_window_on_popped ()
#1  0x00007ffff7d60961 in g_cclosure_marshal_VOID__OBJECTv () from /nix/store/nm9608b5y801fq2p73nl7k80z8kcbmh2-glib-2.80.2/lib/libgobject-2.0.so.0
#2  0x00007ffff7d5d861 in _g_closure_invoke_va () from /nix/store/nm9608b5y801fq2p73nl7k80z8kcbmh2-glib-2.80.2/lib/libgobject-2.0.so.0
#3  0x00007ffff7d736ac in signal_emit_valist_unlocked () from /nix/store/nm9608b5y801fq2p73nl7k80z8kcbmh2-glib-2.80.2/lib/libgobject-2.0.so.0
#4  0x00007ffff7d792d2 in g_signal_emit_valist () from /nix/store/nm9608b5y801fq2p73nl7k80z8kcbmh2-glib-2.80.2/lib/libgobject-2.0.so.0
#5  0x00007ffff7d7937f in g_signal_emit () from /nix/store/nm9608b5y801fq2p73nl7k80z8kcbmh2-glib-2.80.2/lib/libgobject-2.0.so.0
#6  0x00007ffff6684ea1 in pop_from_stack () from /nix/store/rxn1km04lpbii7w546qkdvf2x8hiby0i-libadwaita-1.5.1/lib/libadwaita-1.so.0
#7  0x00007ffff6686af9 in adw_navigation_view_pop () from /nix/store/rxn1km04lpbii7w546qkdvf2x8hiby0i-libadwaita-1.5.1/lib/libadwaita-1.so.0
#8  0x00007ffff6686b79 in navigation_pop_cb () from /nix/store/rxn1km04lpbii7w546qkdvf2x8hiby0i-libadwaita-1.5.1/lib/libadwaita-1.so.0
#9  0x00007ffff7d5d861 in _g_closure_invoke_va () from /nix/store/nm9608b5y801fq2p73nl7k80z8kcbmh2-glib-2.80.2/lib/libgobject-2.0.so.0
#10 0x00007ffff7d736ac in signal_emit_valist_unlocked () from /nix/store/nm9608b5y801fq2p73nl7k80z8kcbmh2-glib-2.80.2/lib/libgobject-2.0.so.0
#11 0x00007ffff7d792d2 in g_signal_emit_valist () from /nix/store/nm9608b5y801fq2p73nl7k80z8kcbmh2-glib-2.80.2/lib/libgobject-2.0.so.0
#12 0x00007ffff7d7937f in g_signal_emit () from /nix/store/nm9608b5y801fq2p73nl7k80z8kcbmh2-glib-2.80.2/lib/libgobject-2.0.so.0
#13 0x00007ffff68d9839 in _gtk_marshal_VOID__INT_DOUBLE_DOUBLEv () from /nix/store/3nfswm4lgdllaqbb7qf32n0bm5zlwhsh-gtk4-4.14.4/lib/libgtk-4.so.1
#14 0x00007ffff7d5d861 in _g_closure_invoke_va () from /nix/store/nm9608b5y801fq2p73nl7k80z8kcbmh2-glib-2.80.2/lib/libgobject-2.0.so.0
#15 0x00007ffff7d736ac in signal_emit_valist_unlocked () from /nix/store/nm9608b5y801fq2p73nl7k80z8kcbmh2-glib-2.80.2/lib/libgobject-2.0.so.0
#16 0x00007ffff7d792d2 in g_signal_emit_valist () from /nix/store/nm9608b5y801fq2p73nl7k80z8kcbmh2-glib-2.80.2/lib/libgobject-2.0.so.0
#17 0x00007ffff7d7937f in g_signal_emit () from /nix/store/nm9608b5y801fq2p73nl7k80z8kcbmh2-glib-2.80.2/lib/libgobject-2.0.so.0
#18 0x00007ffff69877ae in gtk_gesture_click_end () from /nix/store/3nfswm4lgdllaqbb7qf32n0bm5zlwhsh-gtk4-4.14.4/lib/libgtk-4.so.1
#19 0x00007ffff7d606b2 in g_cclosure_marshal_VOID__BOXEDv () from /nix/store/nm9608b5y801fq2p73nl7k80z8kcbmh2-glib-2.80.2/lib/libgobject-2.0.so.0
#20 0x00007ffff7d5d861 in _g_closure_invoke_va () from /nix/store/nm9608b5y801fq2p73nl7k80z8kcbmh2-glib-2.80.2/lib/libgobject-2.0.so.0
#21 0x00007ffff7d736ac in signal_emit_valist_unlocked () from /nix/store/nm9608b5y801fq2p73nl7k80z8kcbmh2-glib-2.80.2/lib/libgobject-2.0.so.0
#22 0x00007ffff7d792d2 in g_signal_emit_valist () from /nix/store/nm9608b5y801fq2p73nl7k80z8kcbmh2-glib-2.80.2/lib/libgobject-2.0.so.0
#23 0x00007ffff7d7937f in g_signal_emit () from /nix/store/nm9608b5y801fq2p73nl7k80z8kcbmh2-glib-2.80.2/lib/libgobject-2.0.so.0
#24 0x00007ffff6984783 in _gtk_gesture_check_recognized () from /nix/store/3nfswm4lgdllaqbb7qf32n0bm5zlwhsh-gtk4-4.14.4/lib/libgtk-4.so.1
#25 0x00007ffff6985edb in gtk_gesture_handle_event () from /nix/store/3nfswm4lgdllaqbb7qf32n0bm5zlwhsh-gtk4-4.14.4/lib/libgtk-4.so.1
#26 0x00007ffff6988e16 in gtk_gesture_single_handle_event () from /nix/store/3nfswm4lgdllaqbb7qf32n0bm5zlwhsh-gtk4-4.14.4/lib/libgtk-4.so.1
#27 0x00007ffff6955566 in gtk_event_controller_handle_event () from /nix/store/3nfswm4lgdllaqbb7qf32n0bm5zlwhsh-gtk4-4.14.4/lib/libgtk-4.so.1
#28 0x00007ffff6a9dd88 in gtk_widget_run_controllers () from /nix/store/3nfswm4lgdllaqbb7qf32n0bm5zlwhsh-gtk4-4.14.4/lib/libgtk-4.so.1
#29 0x00007ffff6aa558e in _gtk_widget_captured_event () from /nix/store/3nfswm4lgdllaqbb7qf32n0bm5zlwhsh-gtk4-4.14.4/lib/libgtk-4.so.1
#30 0x00007ffff69c6b8e in gtk_propagate_event_internal () from /nix/store/3nfswm4lgdllaqbb7qf32n0bm5zlwhsh-gtk4-4.14.4/lib/libgtk-4.so.1
#31 0x00007ffff69c7395 in gtk_main_do_event () from /nix/store/3nfswm4lgdllaqbb7qf32n0bm5zlwhsh-gtk4-4.14.4/lib/libgtk-4.so.1
#32 0x00007ffff6c2e25c in _gdk_marshal_BOOLEAN__POINTERv () from /nix/store/3nfswm4lgdllaqbb7qf32n0bm5zlwhsh-gtk4-4.14.4/lib/libgtk-4.so.1
#33 0x00007ffff6cb70f7 in gdk_surface_event_marshallerv () from /nix/store/3nfswm4lgdllaqbb7qf32n0bm5zlwhsh-gtk4-4.14.4/lib/libgtk-4.so.1
#34 0x00007ffff7d5d861 in _g_closure_invoke_va () from /nix/store/nm9608b5y801fq2p73nl7k80z8kcbmh2-glib-2.80.2/lib/libgobject-2.0.so.0
#35 0x00007ffff7d729a8 in signal_emit_valist_unlocked () from /nix/store/nm9608b5y801fq2p73nl7k80z8kcbmh2-glib-2.80.2/lib/libgobject-2.0.so.0
#36 0x00007ffff7d792d2 in g_signal_emit_valist () from /nix/store/nm9608b5y801fq2p73nl7k80z8kcbmh2-glib-2.80.2/lib/libgobject-2.0.so.0
#37 0x00007ffff7d7937f in g_signal_emit () from /nix/store/nm9608b5y801fq2p73nl7k80z8kcbmh2-glib-2.80.2/lib/libgobject-2.0.so.0
#38 0x00007ffff6cba8a7 in gdk_surface_handle_event () from /nix/store/3nfswm4lgdllaqbb7qf32n0bm5zlwhsh-gtk4-4.14.4/lib/libgtk-4.so.1
#39 0x00007ffff6c43c4a in gdk_event_source_dispatch () from /nix/store/3nfswm4lgdllaqbb7qf32n0bm5zlwhsh-gtk4-4.14.4/lib/libgtk-4.so.1
#40 0x00007ffff7ed0f74 in g_main_dispatch () from /nix/store/nm9608b5y801fq2p73nl7k80z8kcbmh2-glib-2.80.2/lib/libglib-2.0.so.0
#41 0x00007ffff7ed3ff7 in g_main_context_iterate_unlocked.isra () from /nix/store/nm9608b5y801fq2p73nl7k80z8kcbmh2-glib-2.80.2/lib/libglib-2.0.so.0
#42 0x00007ffff7ed45ec in g_main_context_iteration () from /nix/store/nm9608b5y801fq2p73nl7k80z8kcbmh2-glib-2.80.2/lib/libglib-2.0.so.0
#43 0x00007ffff7ba2d1d in g_application_run () from /nix/store/nm9608b5y801fq2p73nl7k80z8kcbmh2-glib-2.80.2/lib/libgio-2.0.so.0
#44 0x000000000044ec2e in main ()

[donovanglover]

Also got a SIGSEGV when pressing the "Home" button from the "For You" section under "Explore". Seems to be related but I don't think I can reproduce without opening random stuff until it crashes again.

Thread 1 ".dev.geopjr.Tub" received signal SIGSEGV, Segmentation fault.
0x000000000048e56e in tuba_dialogs_main_window_on_popped ()
(gdb) backtrace
#0  0x000000000048e56e in tuba_dialogs_main_window_on_popped ()
#1  0x00007ffff7d60961 in g_cclosure_marshal_VOID__OBJECTv () from /nix/store/nm9608b5y801fq2p73nl7k80z8kcbmh2-glib-2.80.2/lib/libgobject-2.0.so.0
#2  0x00007ffff7d5d861 in _g_closure_invoke_va () from /nix/store/nm9608b5y801fq2p73nl7k80z8kcbmh2-glib-2.80.2/lib/libgobject-2.0.so.0
#3  0x00007ffff7d736ac in signal_emit_valist_unlocked () from /nix/store/nm9608b5y801fq2p73nl7k80z8kcbmh2-glib-2.80.2/lib/libgobject-2.0.so.0
#4  0x00007ffff7d792d2 in g_signal_emit_valist () from /nix/store/nm9608b5y801fq2p73nl7k80z8kcbmh2-glib-2.80.2/lib/libgobject-2.0.so.0
#5  0x00007ffff7d7937f in g_signal_emit () from /nix/store/nm9608b5y801fq2p73nl7k80z8kcbmh2-glib-2.80.2/lib/libgobject-2.0.so.0
#6  0x00007ffff6684ea1 in pop_from_stack () from /nix/store/rxn1km04lpbii7w546qkdvf2x8hiby0i-libadwaita-1.5.1/lib/libadwaita-1.so.0
#7  0x00007ffff6686af9 in adw_navigation_view_pop () from /nix/store/rxn1km04lpbii7w546qkdvf2x8hiby0i-libadwaita-1.5.1/lib/libadwaita-1.so.0
#8  0x000000000048e5fc in tuba_dialogs_main_window_go_back_to_start ()
#9  0x00000000004cc2ee in __tuba_mastodon_account_place_home_lambda242__tuba_place_open_func ()
#10 0x00000000004ff6f8 in _tuba_views_sidebar_on_item_activated_gtk_list_box_row_activated ()
#11 0x00007ffff7d60961 in g_cclosure_marshal_VOID__OBJECTv () from /nix/store/nm9608b5y801fq2p73nl7k80z8kcbmh2-glib-2.80.2/lib/libgobject-2.0.so.0
#12 0x00007ffff7d5d861 in _g_closure_invoke_va () from /nix/store/nm9608b5y801fq2p73nl7k80z8kcbmh2-glib-2.80.2/lib/libgobject-2.0.so.0
#13 0x00007ffff7d736ac in signal_emit_valist_unlocked () from /nix/store/nm9608b5y801fq2p73nl7k80z8kcbmh2-glib-2.80.2/lib/libgobject-2.0.so.0
#14 0x00007ffff7d792d2 in g_signal_emit_valist () from /nix/store/nm9608b5y801fq2p73nl7k80z8kcbmh2-glib-2.80.2/lib/libgobject-2.0.so.0
#15 0x00007ffff7d7937f in g_signal_emit () from /nix/store/nm9608b5y801fq2p73nl7k80z8kcbmh2-glib-2.80.2/lib/libgobject-2.0.so.0
#16 0x00007ffff69bb3d7 in gtk_list_box_click_gesture_released () from /nix/store/3nfswm4lgdllaqbb7qf32n0bm5zlwhsh-gtk4-4.14.4/lib/libgtk-4.so.1
#17 0x00007ffff68d9839 in _gtk_marshal_VOID__INT_DOUBLE_DOUBLEv () from /nix/store/3nfswm4lgdllaqbb7qf32n0bm5zlwhsh-gtk4-4.14.4/lib/libgtk-4.so.1
#18 0x00007ffff7d5d861 in _g_closure_invoke_va () from /nix/store/nm9608b5y801fq2p73nl7k80z8kcbmh2-glib-2.80.2/lib/libgobject-2.0.so.0
#19 0x00007ffff7d736ac in signal_emit_valist_unlocked () from /nix/store/nm9608b5y801fq2p73nl7k80z8kcbmh2-glib-2.80.2/lib/libgobject-2.0.so.0
#20 0x00007ffff7d792d2 in g_signal_emit_valist () from /nix/store/nm9608b5y801fq2p73nl7k80z8kcbmh2-glib-2.80.2/lib/libgobject-2.0.so.0
#21 0x00007ffff7d7937f in g_signal_emit () from /nix/store/nm9608b5y801fq2p73nl7k80z8kcbmh2-glib-2.80.2/lib/libgobject-2.0.so.0
#22 0x00007ffff69877ae in gtk_gesture_click_end () from /nix/store/3nfswm4lgdllaqbb7qf32n0bm5zlwhsh-gtk4-4.14.4/lib/libgtk-4.so.1
#23 0x00007ffff7d606b2 in g_cclosure_marshal_VOID__BOXEDv () from /nix/store/nm9608b5y801fq2p73nl7k80z8kcbmh2-glib-2.80.2/lib/libgobject-2.0.so.0
#24 0x00007ffff7d5d861 in _g_closure_invoke_va () from /nix/store/nm9608b5y801fq2p73nl7k80z8kcbmh2-glib-2.80.2/lib/libgobject-2.0.so.0
#25 0x00007ffff7d736ac in signal_emit_valist_unlocked () from /nix/store/nm9608b5y801fq2p73nl7k80z8kcbmh2-glib-2.80.2/lib/libgobject-2.0.so.0
#26 0x00007ffff7d792d2 in g_signal_emit_valist () from /nix/store/nm9608b5y801fq2p73nl7k80z8kcbmh2-glib-2.80.2/lib/libgobject-2.0.so.0
#27 0x00007ffff7d7937f in g_signal_emit () from /nix/store/nm9608b5y801fq2p73nl7k80z8kcbmh2-glib-2.80.2/lib/libgobject-2.0.so.0
#28 0x00007ffff6984783 in _gtk_gesture_check_recognized () from /nix/store/3nfswm4lgdllaqbb7qf32n0bm5zlwhsh-gtk4-4.14.4/lib/libgtk-4.so.1
#29 0x00007ffff6985edb in gtk_gesture_handle_event () from /nix/store/3nfswm4lgdllaqbb7qf32n0bm5zlwhsh-gtk4-4.14.4/lib/libgtk-4.so.1
#30 0x00007ffff6988e16 in gtk_gesture_single_handle_event () from /nix/store/3nfswm4lgdllaqbb7qf32n0bm5zlwhsh-gtk4-4.14.4/lib/libgtk-4.so.1
#31 0x00007ffff6955566 in gtk_event_controller_handle_event () from /nix/store/3nfswm4lgdllaqbb7qf32n0bm5zlwhsh-gtk4-4.14.4/lib/libgtk-4.so.1
#32 0x00007ffff6a9dd88 in gtk_widget_run_controllers () from /nix/store/3nfswm4lgdllaqbb7qf32n0bm5zlwhsh-gtk4-4.14.4/lib/libgtk-4.so.1
#33 0x00007ffff69c6c26 in gtk_propagate_event_internal () from /nix/store/3nfswm4lgdllaqbb7qf32n0bm5zlwhsh-gtk4-4.14.4/lib/libgtk-4.so.1
#34 0x00007ffff69c7395 in gtk_main_do_event () from /nix/store/3nfswm4lgdllaqbb7qf32n0bm5zlwhsh-gtk4-4.14.4/lib/libgtk-4.so.1
#35 0x00007ffff6c2e25c in _gdk_marshal_BOOLEAN__POINTERv () from /nix/store/3nfswm4lgdllaqbb7qf32n0bm5zlwhsh-gtk4-4.14.4/lib/libgtk-4.so.1
#36 0x00007ffff6cb70f7 in gdk_surface_event_marshallerv () from /nix/store/3nfswm4lgdllaqbb7qf32n0bm5zlwhsh-gtk4-4.14.4/lib/libgtk-4.so.1
#37 0x00007ffff7d5d861 in _g_closure_invoke_va () from /nix/store/nm9608b5y801fq2p73nl7k80z8kcbmh2-glib-2.80.2/lib/libgobject-2.0.so.0
#38 0x00007ffff7d729a8 in signal_emit_valist_unlocked () from /nix/store/nm9608b5y801fq2p73nl7k80z8kcbmh2-glib-2.80.2/lib/libgobject-2.0.so.0
#39 0x00007ffff7d792d2 in g_signal_emit_valist () from /nix/store/nm9608b5y801fq2p73nl7k80z8kcbmh2-glib-2.80.2/lib/libgobject-2.0.so.0
#40 0x00007ffff7d7937f in g_signal_emit () from /nix/store/nm9608b5y801fq2p73nl7k80z8kcbmh2-glib-2.80.2/lib/libgobject-2.0.so.0
#41 0x00007ffff6cba8a7 in gdk_surface_handle_event () from /nix/store/3nfswm4lgdllaqbb7qf32n0bm5zlwhsh-gtk4-4.14.4/lib/libgtk-4.so.1
#42 0x00007ffff6c43c4a in gdk_event_source_dispatch () from /nix/store/3nfswm4lgdllaqbb7qf32n0bm5zlwhsh-gtk4-4.14.4/lib/libgtk-4.so.1
#43 0x00007ffff7ed0f74 in g_main_dispatch () from /nix/store/nm9608b5y801fq2p73nl7k80z8kcbmh2-glib-2.80.2/lib/libglib-2.0.so.0
#44 0x00007ffff7ed3ff7 in g_main_context_iterate_unlocked.isra () from /nix/store/nm9608b5y801fq2p73nl7k80z8kcbmh2-glib-2.80.2/lib/libglib-2.0.so.0
#45 0x00007ffff7ed45ec in g_main_context_iteration () from /nix/store/nm9608b5y801fq2p73nl7k80z8kcbmh2-glib-2.80.2/lib/libglib-2.0.so.0
#46 0x00007ffff7ba2d1d in g_application_run () from /nix/store/nm9608b5y801fq2p73nl7k80z8kcbmh2-glib-2.80.2/lib/libgio-2.0.so.0
#47 0x000000000044ec2e in main ()
(gdb) 

[GeopJr]

Are there any logs before that? (CRITICALs probably)

This is weird, all it tells me is that it segfaulted when calling on_popped but not why exactly :/

(it's the same in both logs)

Here's another patch on top of the previous one that will log if some objects are null, could you give a try? (and reproduce the segfault)

log.patch.txt

(it will log three boolean values to see if some properties are null)

[donovanglover]

Was able to reproduce this time by pressing the back button once (similar to the reproduction steps in the original post). Haven't seen any CRITICALs in logs yet.

(dev.geopjr.Tuba:1021824): Tuba-DEBUG: 15:13:01.232: Status.vala:238: Destroying Status widget
(dev.geopjr.Tuba:1021824): Tuba-DEBUG: 15:13:01.233: Status.vala:4: [OBJ] Destroyed https://example.com/users/<account_that_boosted>/statuses/<boosted_status>/activity
(dev.geopjr.Tuba:1021824): Tuba-DEBUG: 15:13:01.233: Status.vala:4: [OBJ] Destroyed https://example.org/users/<boosted_account>/statuses/<status>

(dev.geopjr.Tuba:1021824): Tuba-WARNING **: 15:13:02.805: MainWindow.vala:186: false

(dev.geopjr.Tuba:1021824): Tuba-WARNING **: 15:13:02.805: MainWindow.vala:187: false

(dev.geopjr.Tuba:1021824): Tuba-WARNING **: 15:13:02.806: MainWindow.vala:188: false

Thread 1 ".dev.geopjr.Tub" received signal SIGSEGV, Segmentation fault.
0x000000000048e681 in tuba_dialogs_main_window_on_popped ()
(gdb) backtrace 
#0  0x000000000048e681 in tuba_dialogs_main_window_on_popped ()
#1  0x00007ffff7d60961 in g_cclosure_marshal_VOID__OBJECTv () from /nix/store/nm9608b5y801fq2p73nl7k80z8kcbmh2-glib-2.80.2/lib/libgobject-2.0.so.0
#2  0x00007ffff7d5d861 in _g_closure_invoke_va () from /nix/store/nm9608b5y801fq2p73nl7k80z8kcbmh2-glib-2.80.2/lib/libgobject-2.0.so.0
#3  0x00007ffff7d736ac in signal_emit_valist_unlocked () from /nix/store/nm9608b5y801fq2p73nl7k80z8kcbmh2-glib-2.80.2/lib/libgobject-2.0.so.0
#4  0x00007ffff7d792d2 in g_signal_emit_valist () from /nix/store/nm9608b5y801fq2p73nl7k80z8kcbmh2-glib-2.80.2/lib/libgobject-2.0.so.0
#5  0x00007ffff7d7937f in g_signal_emit () from /nix/store/nm9608b5y801fq2p73nl7k80z8kcbmh2-glib-2.80.2/lib/libgobject-2.0.so.0
#6  0x00007ffff6684ea1 in pop_from_stack () from /nix/store/rxn1km04lpbii7w546qkdvf2x8hiby0i-libadwaita-1.5.1/lib/libadwaita-1.so.0
#7  0x00007ffff6686af9 in adw_navigation_view_pop () from /nix/store/rxn1km04lpbii7w546qkdvf2x8hiby0i-libadwaita-1.5.1/lib/libadwaita-1.so.0
#8  0x00007ffff6686b79 in navigation_pop_cb () from /nix/store/rxn1km04lpbii7w546qkdvf2x8hiby0i-libadwaita-1.5.1/lib/libadwaita-1.so.0
#9  0x00007ffff7d5d861 in _g_closure_invoke_va () from /nix/store/nm9608b5y801fq2p73nl7k80z8kcbmh2-glib-2.80.2/lib/libgobject-2.0.so.0
#10 0x00007ffff7d736ac in signal_emit_valist_unlocked () from /nix/store/nm9608b5y801fq2p73nl7k80z8kcbmh2-glib-2.80.2/lib/libgobject-2.0.so.0
#11 0x00007ffff7d792d2 in g_signal_emit_valist () from /nix/store/nm9608b5y801fq2p73nl7k80z8kcbmh2-glib-2.80.2/lib/libgobject-2.0.so.0
#12 0x00007ffff7d7937f in g_signal_emit () from /nix/store/nm9608b5y801fq2p73nl7k80z8kcbmh2-glib-2.80.2/lib/libgobject-2.0.so.0
#13 0x00007ffff68d9839 in _gtk_marshal_VOID__INT_DOUBLE_DOUBLEv () from /nix/store/3nfswm4lgdllaqbb7qf32n0bm5zlwhsh-gtk4-4.14.4/lib/libgtk-4.so.1
#14 0x00007ffff7d5d861 in _g_closure_invoke_va () from /nix/store/nm9608b5y801fq2p73nl7k80z8kcbmh2-glib-2.80.2/lib/libgobject-2.0.so.0
#15 0x00007ffff7d736ac in signal_emit_valist_unlocked () from /nix/store/nm9608b5y801fq2p73nl7k80z8kcbmh2-glib-2.80.2/lib/libgobject-2.0.so.0
#16 0x00007ffff7d792d2 in g_signal_emit_valist () from /nix/store/nm9608b5y801fq2p73nl7k80z8kcbmh2-glib-2.80.2/lib/libgobject-2.0.so.0
#17 0x00007ffff7d7937f in g_signal_emit () from /nix/store/nm9608b5y801fq2p73nl7k80z8kcbmh2-glib-2.80.2/lib/libgobject-2.0.so.0
#18 0x00007ffff69877ae in gtk_gesture_click_end () from /nix/store/3nfswm4lgdllaqbb7qf32n0bm5zlwhsh-gtk4-4.14.4/lib/libgtk-4.so.1
#19 0x00007ffff7d606b2 in g_cclosure_marshal_VOID__BOXEDv () from /nix/store/nm9608b5y801fq2p73nl7k80z8kcbmh2-glib-2.80.2/lib/libgobject-2.0.so.0
#20 0x00007ffff7d5d861 in _g_closure_invoke_va () from /nix/store/nm9608b5y801fq2p73nl7k80z8kcbmh2-glib-2.80.2/lib/libgobject-2.0.so.0
#21 0x00007ffff7d736ac in signal_emit_valist_unlocked () from /nix/store/nm9608b5y801fq2p73nl7k80z8kcbmh2-glib-2.80.2/lib/libgobject-2.0.so.0
#22 0x00007ffff7d792d2 in g_signal_emit_valist () from /nix/store/nm9608b5y801fq2p73nl7k80z8kcbmh2-glib-2.80.2/lib/libgobject-2.0.so.0
#23 0x00007ffff7d7937f in g_signal_emit () from /nix/store/nm9608b5y801fq2p73nl7k80z8kcbmh2-glib-2.80.2/lib/libgobject-2.0.so.0
#24 0x00007ffff6984783 in _gtk_gesture_check_recognized () from /nix/store/3nfswm4lgdllaqbb7qf32n0bm5zlwhsh-gtk4-4.14.4/lib/libgtk-4.so.1
#25 0x00007ffff6985edb in gtk_gesture_handle_event () from /nix/store/3nfswm4lgdllaqbb7qf32n0bm5zlwhsh-gtk4-4.14.4/lib/libgtk-4.so.1
#26 0x00007ffff6988e16 in gtk_gesture_single_handle_event () from /nix/store/3nfswm4lgdllaqbb7qf32n0bm5zlwhsh-gtk4-4.14.4/lib/libgtk-4.so.1
#27 0x00007ffff6955566 in gtk_event_controller_handle_event () from /nix/store/3nfswm4lgdllaqbb7qf32n0bm5zlwhsh-gtk4-4.14.4/lib/libgtk-4.so.1
#28 0x00007ffff6a9dd88 in gtk_widget_run_controllers () from /nix/store/3nfswm4lgdllaqbb7qf32n0bm5zlwhsh-gtk4-4.14.4/lib/libgtk-4.so.1
#29 0x00007ffff6aa558e in _gtk_widget_captured_event () from /nix/store/3nfswm4lgdllaqbb7qf32n0bm5zlwhsh-gtk4-4.14.4/lib/libgtk-4.so.1
#30 0x00007ffff69c6b8e in gtk_propagate_event_internal () from /nix/store/3nfswm4lgdllaqbb7qf32n0bm5zlwhsh-gtk4-4.14.4/lib/libgtk-4.so.1
#31 0x00007ffff69c7395 in gtk_main_do_event () from /nix/store/3nfswm4lgdllaqbb7qf32n0bm5zlwhsh-gtk4-4.14.4/lib/libgtk-4.so.1
#32 0x00007ffff6c2e25c in _gdk_marshal_BOOLEAN__POINTERv () from /nix/store/3nfswm4lgdllaqbb7qf32n0bm5zlwhsh-gtk4-4.14.4/lib/libgtk-4.so.1
#33 0x00007ffff6cb70f7 in gdk_surface_event_marshallerv () from /nix/store/3nfswm4lgdllaqbb7qf32n0bm5zlwhsh-gtk4-4.14.4/lib/libgtk-4.so.1
#34 0x00007ffff7d5d861 in _g_closure_invoke_va () from /nix/store/nm9608b5y801fq2p73nl7k80z8kcbmh2-glib-2.80.2/lib/libgobject-2.0.so.0
#35 0x00007ffff7d729a8 in signal_emit_valist_unlocked () from /nix/store/nm9608b5y801fq2p73nl7k80z8kcbmh2-glib-2.80.2/lib/libgobject-2.0.so.0
#36 0x00007ffff7d792d2 in g_signal_emit_valist () from /nix/store/nm9608b5y801fq2p73nl7k80z8kcbmh2-glib-2.80.2/lib/libgobject-2.0.so.0
#37 0x00007ffff7d7937f in g_signal_emit () from /nix/store/nm9608b5y801fq2p73nl7k80z8kcbmh2-glib-2.80.2/lib/libgobject-2.0.so.0
#38 0x00007ffff6cba8a7 in gdk_surface_handle_event () from /nix/store/3nfswm4lgdllaqbb7qf32n0bm5zlwhsh-gtk4-4.14.4/lib/libgtk-4.so.1
#39 0x00007ffff6c43c4a in gdk_event_source_dispatch () from /nix/store/3nfswm4lgdllaqbb7qf32n0bm5zlwhsh-gtk4-4.14.4/lib/libgtk-4.so.1
#40 0x00007ffff7ed0f74 in g_main_dispatch () from /nix/store/nm9608b5y801fq2p73nl7k80z8kcbmh2-glib-2.80.2/lib/libglib-2.0.so.0
#41 0x00007ffff7ed3ff7 in g_main_context_iterate_unlocked.isra () from /nix/store/nm9608b5y801fq2p73nl7k80z8kcbmh2-glib-2.80.2/lib/libglib-2.0.so.0
#42 0x00007ffff7ed45ec in g_main_context_iteration () from /nix/store/nm9608b5y801fq2p73nl7k80z8kcbmh2-glib-2.80.2/lib/libglib-2.0.so.0
#43 0x00007ffff7ba2d1d in g_application_run () from /nix/store/nm9608b5y801fq2p73nl7k80z8kcbmh2-glib-2.80.2/lib/libgio-2.0.so.0
#44 0x000000000044ec2e in main ()
(gdb) 

[GeopJr]

Thanks!

I installed nixos in a vm but still can't reproduce it :/

Could you try one last time? I have two patches,

1. log_full.patch.txt

Like the previous one, some more logging in an attempt to point it down

2. Remove all patches and try https://patch-diff.githubusercontent.com/raw/GeopJr/Tuba/pull/1061.patch again (added changes). This will probably fix everything but I'll have to do a thorough memory leak check

[donovanglover]

Patch 1:

(dev.geopjr.Tuba:1041424): Tuba-DEBUG: 20:07:20.335: Network.vala:65: POST: https://example.com/api/v1/accounts/<boosted_account>/mute
(dev.geopjr.Tuba:1041424): Tuba-DEBUG: 20:07:20.764: Relationship.vala:90: Performed "mute" on Relationship <boosted_account>
(dev.geopjr.Tuba:1041424): Tuba-DEBUG: 20:07:21.172: Streams.vala:131: https://example.com/api/v1/streaming?stream=user: delete for TubaViewsHome
(dev.geopjr.Tuba:1041424): Tuba-DEBUG: 20:07:21.174: Status.vala:238: Destroying Status widget
(dev.geopjr.Tuba:1041424): Tuba-DEBUG: 20:07:21.174: Status.vala:4: [OBJ] Destroyed https://example.com/users/<account_that_boosted>/statuses/<boosted_status>/activity
(dev.geopjr.Tuba:1041424): Tuba-DEBUG: 20:07:21.175: Status.vala:4: [OBJ] Destroyed https://example.org/users/<boosted_account>/statuses/<status>
(dev.geopjr.Tuba:1041424): Tuba-DEBUG: 20:07:21.175: Streams.vala:131: https://example.com/api/v1/streaming?stream=user: delete for TubaViewsHome
(dev.geopjr.Tuba:1041424): Tuba-DEBUG: 20:07:21.175: Streams.vala:131: https://example.com/api/v1/streaming?stream=user: delete for TubaViewsHome

(dev.geopjr.Tuba:1041424): Tuba-WARNING **: 20:07:22.632: MainWindow.vala:186: false

(dev.geopjr.Tuba:1041424): Tuba-WARNING **: 20:07:22.632: MainWindow.vala:187: false

(dev.geopjr.Tuba:1041424): Tuba-WARNING **: 20:07:22.632: MainWindow.vala:188: false

(dev.geopjr.Tuba:1041424): Tuba-WARNING **: 20:07:22.632: MainWindow.vala:190: Passed cbase

(dev.geopjr.Tuba:1041424): Tuba-WARNING **: 20:07:22.632: MainWindow.vala:192: false

Thread 1 ".dev.geopjr.Tub" received signal SIGSEGV, Segmentation fault.
0x00007ffff7d82884 in g_type_check_instance_is_a () from /nix/store/nm9608b5y801fq2p73nl7k80z8kcbmh2-glib-2.80.2/lib/libgobject-2.0.so.0
(gdb) backtrace
#0  0x00007ffff7d82884 in g_type_check_instance_is_a () from /nix/store/nm9608b5y801fq2p73nl7k80z8kcbmh2-glib-2.80.2/lib/libgobject-2.0.so.0
#1  0x000000000048e6df in tuba_dialogs_main_window_on_popped ()
#2  0x00007ffff7d60961 in g_cclosure_marshal_VOID__OBJECTv () from /nix/store/nm9608b5y801fq2p73nl7k80z8kcbmh2-glib-2.80.2/lib/libgobject-2.0.so.0
#3  0x00007ffff7d5d861 in _g_closure_invoke_va () from /nix/store/nm9608b5y801fq2p73nl7k80z8kcbmh2-glib-2.80.2/lib/libgobject-2.0.so.0
#4  0x00007ffff7d736ac in signal_emit_valist_unlocked () from /nix/store/nm9608b5y801fq2p73nl7k80z8kcbmh2-glib-2.80.2/lib/libgobject-2.0.so.0
#5  0x00007ffff7d792d2 in g_signal_emit_valist () from /nix/store/nm9608b5y801fq2p73nl7k80z8kcbmh2-glib-2.80.2/lib/libgobject-2.0.so.0
#6  0x00007ffff7d7937f in g_signal_emit () from /nix/store/nm9608b5y801fq2p73nl7k80z8kcbmh2-glib-2.80.2/lib/libgobject-2.0.so.0
#7  0x00007ffff6684ea1 in pop_from_stack () from /nix/store/rxn1km04lpbii7w546qkdvf2x8hiby0i-libadwaita-1.5.1/lib/libadwaita-1.so.0
#8  0x00007ffff6686af9 in adw_navigation_view_pop () from /nix/store/rxn1km04lpbii7w546qkdvf2x8hiby0i-libadwaita-1.5.1/lib/libadwaita-1.so.0
#9  0x00007ffff6686b79 in navigation_pop_cb () from /nix/store/rxn1km04lpbii7w546qkdvf2x8hiby0i-libadwaita-1.5.1/lib/libadwaita-1.so.0
#10 0x00007ffff7d5d861 in _g_closure_invoke_va () from /nix/store/nm9608b5y801fq2p73nl7k80z8kcbmh2-glib-2.80.2/lib/libgobject-2.0.so.0
#11 0x00007ffff7d736ac in signal_emit_valist_unlocked () from /nix/store/nm9608b5y801fq2p73nl7k80z8kcbmh2-glib-2.80.2/lib/libgobject-2.0.so.0
#12 0x00007ffff7d792d2 in g_signal_emit_valist () from /nix/store/nm9608b5y801fq2p73nl7k80z8kcbmh2-glib-2.80.2/lib/libgobject-2.0.so.0
#13 0x00007ffff7d7937f in g_signal_emit () from /nix/store/nm9608b5y801fq2p73nl7k80z8kcbmh2-glib-2.80.2/lib/libgobject-2.0.so.0
#14 0x00007ffff68d9839 in _gtk_marshal_VOID__INT_DOUBLE_DOUBLEv () from /nix/store/3nfswm4lgdllaqbb7qf32n0bm5zlwhsh-gtk4-4.14.4/lib/libgtk-4.so.1
#15 0x00007ffff7d5d861 in _g_closure_invoke_va () from /nix/store/nm9608b5y801fq2p73nl7k80z8kcbmh2-glib-2.80.2/lib/libgobject-2.0.so.0
#16 0x00007ffff7d736ac in signal_emit_valist_unlocked () from /nix/store/nm9608b5y801fq2p73nl7k80z8kcbmh2-glib-2.80.2/lib/libgobject-2.0.so.0
#17 0x00007ffff7d792d2 in g_signal_emit_valist () from /nix/store/nm9608b5y801fq2p73nl7k80z8kcbmh2-glib-2.80.2/lib/libgobject-2.0.so.0
#18 0x00007ffff7d7937f in g_signal_emit () from /nix/store/nm9608b5y801fq2p73nl7k80z8kcbmh2-glib-2.80.2/lib/libgobject-2.0.so.0
#19 0x00007ffff69877ae in gtk_gesture_click_end () from /nix/store/3nfswm4lgdllaqbb7qf32n0bm5zlwhsh-gtk4-4.14.4/lib/libgtk-4.so.1
#20 0x00007ffff7d606b2 in g_cclosure_marshal_VOID__BOXEDv () from /nix/store/nm9608b5y801fq2p73nl7k80z8kcbmh2-glib-2.80.2/lib/libgobject-2.0.so.0
#21 0x00007ffff7d5d861 in _g_closure_invoke_va () from /nix/store/nm9608b5y801fq2p73nl7k80z8kcbmh2-glib-2.80.2/lib/libgobject-2.0.so.0
#22 0x00007ffff7d736ac in signal_emit_valist_unlocked () from /nix/store/nm9608b5y801fq2p73nl7k80z8kcbmh2-glib-2.80.2/lib/libgobject-2.0.so.0
#23 0x00007ffff7d792d2 in g_signal_emit_valist () from /nix/store/nm9608b5y801fq2p73nl7k80z8kcbmh2-glib-2.80.2/lib/libgobject-2.0.so.0
#24 0x00007ffff7d7937f in g_signal_emit () from /nix/store/nm9608b5y801fq2p73nl7k80z8kcbmh2-glib-2.80.2/lib/libgobject-2.0.so.0
#25 0x00007ffff6984783 in _gtk_gesture_check_recognized () from /nix/store/3nfswm4lgdllaqbb7qf32n0bm5zlwhsh-gtk4-4.14.4/lib/libgtk-4.so.1
#26 0x00007ffff6985edb in gtk_gesture_handle_event () from /nix/store/3nfswm4lgdllaqbb7qf32n0bm5zlwhsh-gtk4-4.14.4/lib/libgtk-4.so.1
#27 0x00007ffff6988e16 in gtk_gesture_single_handle_event () from /nix/store/3nfswm4lgdllaqbb7qf32n0bm5zlwhsh-gtk4-4.14.4/lib/libgtk-4.so.1
#28 0x00007ffff6955566 in gtk_event_controller_handle_event () from /nix/store/3nfswm4lgdllaqbb7qf32n0bm5zlwhsh-gtk4-4.14.4/lib/libgtk-4.so.1
#29 0x00007ffff6a9dd88 in gtk_widget_run_controllers () from /nix/store/3nfswm4lgdllaqbb7qf32n0bm5zlwhsh-gtk4-4.14.4/lib/libgtk-4.so.1
#30 0x00007ffff6aa558e in _gtk_widget_captured_event () from /nix/store/3nfswm4lgdllaqbb7qf32n0bm5zlwhsh-gtk4-4.14.4/lib/libgtk-4.so.1
#31 0x00007ffff69c6b8e in gtk_propagate_event_internal () from /nix/store/3nfswm4lgdllaqbb7qf32n0bm5zlwhsh-gtk4-4.14.4/lib/libgtk-4.so.1
#32 0x00007ffff69c7395 in gtk_main_do_event () from /nix/store/3nfswm4lgdllaqbb7qf32n0bm5zlwhsh-gtk4-4.14.4/lib/libgtk-4.so.1
#33 0x00007ffff6c2e25c in _gdk_marshal_BOOLEAN__POINTERv () from /nix/store/3nfswm4lgdllaqbb7qf32n0bm5zlwhsh-gtk4-4.14.4/lib/libgtk-4.so.1
#34 0x00007ffff6cb70f7 in gdk_surface_event_marshallerv () from /nix/store/3nfswm4lgdllaqbb7qf32n0bm5zlwhsh-gtk4-4.14.4/lib/libgtk-4.so.1
#35 0x00007ffff7d5d861 in _g_closure_invoke_va () from /nix/store/nm9608b5y801fq2p73nl7k80z8kcbmh2-glib-2.80.2/lib/libgobject-2.0.so.0
#36 0x00007ffff7d729a8 in signal_emit_valist_unlocked () from /nix/store/nm9608b5y801fq2p73nl7k80z8kcbmh2-glib-2.80.2/lib/libgobject-2.0.so.0
#37 0x00007ffff7d792d2 in g_signal_emit_valist () from /nix/store/nm9608b5y801fq2p73nl7k80z8kcbmh2-glib-2.80.2/lib/libgobject-2.0.so.0
#38 0x00007ffff7d7937f in g_signal_emit () from /nix/store/nm9608b5y801fq2p73nl7k80z8kcbmh2-glib-2.80.2/lib/libgobject-2.0.so.0
#39 0x00007ffff6cba8a7 in gdk_surface_handle_event () from /nix/store/3nfswm4lgdllaqbb7qf32n0bm5zlwhsh-gtk4-4.14.4/lib/libgtk-4.so.1
#40 0x00007ffff6c43c4a in gdk_event_source_dispatch () from /nix/store/3nfswm4lgdllaqbb7qf32n0bm5zlwhsh-gtk4-4.14.4/lib/libgtk-4.so.1
#41 0x00007ffff7ed0f74 in g_main_dispatch () from /nix/store/nm9608b5y801fq2p73nl7k80z8kcbmh2-glib-2.80.2/lib/libglib-2.0.so.0
#42 0x00007ffff7ed3ff7 in g_main_context_iterate_unlocked.isra () from /nix/store/nm9608b5y801fq2p73nl7k80z8kcbmh2-glib-2.80.2/lib/libglib-2.0.so.0
#43 0x00007ffff7ed45ec in g_main_context_iteration () from /nix/store/nm9608b5y801fq2p73nl7k80z8kcbmh2-glib-2.80.2/lib/libglib-2.0.so.0
#44 0x00007ffff7ba2d1d in g_application_run () from /nix/store/nm9608b5y801fq2p73nl7k80z8kcbmh2-glib-2.80.2/lib/libgio-2.0.so.0
#45 0x000000000044ec2e in main ()
(gdb) 

[donovanglover]

Looks like the second patch fixes things. I haven't had a single SIGSEGV yet. Thank you!

[GeopJr]

Finally we found the culprit, thank you! Wouldn't be able to fix it without your help!

---

I'll probably go with the second option but for the sake of documenting it so we avoid this in the future:

per the above log, content_base.last_widget == null is false, so the weak ref to the last focused widget is not null. At the same time, content_base.last_widget as Gtk.Widget (/ g_type_check_instance_is_a in C) segfaults.

Makes sense why the initial assertion when grab_focus is called, would also segfault here.

Moving forward, getting rid of the weak ref seems to be the appropriate solution in this case.