Bug 239767 – REGRESSION(249114@main) [GTK] Crashes on shutdown if the display is not set

• Component: WebKitGTK
• Status: RESOLVED FIXED

[Alberto Garcia]

Running one of the devhelp tests crashes since WebKitGTK 2.36.1 if there's no display:

error: XDG_RUNTIME_DIR not set in the environment.

(test:5926): GLib-GObject-WARNING **: 14:00:44.774: invalid (NULL) pointer instance

(test:5926): GLib-GObject-CRITICAL **: 14:00:44.774: g_signal_connect_data: assertion 'G_TYPE_CHECK_INSTANCE (instance)' failed

(test:5926): Gdk-CRITICAL **: 14:00:44.774: gdk_wayland_display_get_wl_display: assertion 'GDK_IS_WAYLAND_DISPLAY (display)' failed
EGLDisplay Initialization failed: EGL_NOT_INITIALIZED
Thread 1 "test" received signal SIGSEGV, Segmentation fault.
0x00007ffff2c94ae7 in wl_display_disconnect () from /usr/lib/x86_64-linux-gnu/libwayland-client.so.0
(gdb) bt
#0  0x00007ffff2c94ae7 in wl_display_disconnect () at /usr/lib/x86_64-linux-gnu/libwayland-client.so.0
#1  0x00007ffff5930735 in WebCore::PlatformDisplayWayland::~PlatformDisplayWayland() () at ./Source/WebCore/platform/graphics/wayland/PlatformDisplayWayland.cpp:105
#2  0x00007ffff5930749 in WebCore::PlatformDisplayWayland::~PlatformDisplayWayland() () at ./Source/WebCore/platform/graphics/wayland/PlatformDisplayWayland.cpp:107
#3  0x00007ffff7df4f77 in __run_exit_handlers (status=0, listp=0x7ffff7f88738 <__exit_funcs>, run_list_atexit=run_list_atexit@entry=true, run_dtors=run_dtors@entry=true)
    at exit.c:108
#4  0x00007ffff7df511a in __GI_exit (status=<optimized out>) at exit.c:139
#5  0x00007ffff7ddd804 in __libc_start_main (main=
    0x555555555149 <main>, argc=1, argv=0x7fffffffec28, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fffffffec18)
    at ../csu/libc-start.c:366
#6  0x000055555555508a in _start ()

[Alberto Garcia]

Almost certainly due to this change:

https://github.com/WebKit/WebKit/commit/72fad08f2bfe7d2744c3217fe0ec0afcc671c53e

[Carlos Garcia Campos]

Created attachment 458781 [details]
Patch

[Alberto Garcia]

Thanks, I confirm that the patch fixes the devhelp tests.

[EWS]

Committed r293826 (250299@main): <https://commits.webkit.org/250299@main>

All reviewed patches have been landed. Closing bug and clearing flags on attachment 458781 [details].