1747481 - Crash in [@ wl_proxy_marshal_flags | gdk_wayland_selection_add_targets_libgtk_only]

Status: RESOLVED WORKSFORME

(Core :: Widget: Gtk, defect, P3)

Description

[Andrew McCreight [:mccr8]]

Crash report: https://crash-stats.mozilla.org/report/index/d360ccad-df70-423e-be3b-2e2c40211222

Reason: SIGSEGV / SI_KERNEL

Top 10 frames of crashing thread:

0 libwayland-client.so.0 wl_proxy_marshal_flags 
1 libgdk-3.so.0 gdk_wayland_selection_add_targets_libgtk_only 
2 libgobject-2.0.so.0 g_closure_invoke 
3 libgobject-2.0.so.0 g_signal_handlers_destroy 
4 libgobject-2.0.so.0 g_signal_emit_valist 
5 libgobject-2.0.so.0 g_signal_emit 
6 libgdk-3.so.0 gdk_cairo_draw_from_gl 
7 libgdk-3.so.0 gdk_threads_leave 
8 libglib-2.0.so.0 g_main_context_check 
9 libglib-2.0.so.0 g_main_context_dispatch 

Null deref. Looks like a regression, first showing up in the 20211222092845 build. Here's the patches added in that build.

Comment 1

[pirminbraun16]

I only experience this bug/crash signature with gfx.webrender.compositor.force-enabled set to true. But with that set to true, it occurs very often.
Maybe this bug should block [meta] WR Wayland Compositing ?

Comment 2

[Marco Castelluccio [:marco]]

Since this is not enabled by default, can we reassess the severity?

Comment 3

[BugBot [:suhaib / :marco/ :calixte]]

Closing because no crashes reported for 12 weeks.