SIGSEGV from daemon on startup

[JakeStanger]

Starting the daemon crashes immediately with a SIGSEGV, I can't get any more info out than this unfortunately

❯ mconnect -d
** (mconnect:85806): DEBUG: 21:53:38.333: config.vala:46: config search dir: /home/jake/.config/mconnect
** (mconnect:85806): DEBUG: 21:53:38.334: config.vala:46: config search dir: /usr/local/share/mconnect
** (mconnect:85806): DEBUG: 21:53:38.334: config.vala:46: config search dir: /usr/share/mconnect
** Message: 21:53:38.334: config.vala:58: loaded configuration from /home/jake/.config/mconnect/mconnect.conf
(mconnect:85806): GLib-GIO-DEBUG: 21:53:38.336: _g_io_module_get_default: Found default implementation gvfs (GDaemonVfs) for ?gio-vfs?
(mconnect:85806): GLib-GIO-DEBUG: 21:53:38.336: _g_io_module_get_default: Found default implementation gnutls (GTlsBackendGnutls) for ?gio-tls-backend?
** INFO: 21:53:38.337: share.vala:51: downloads will be saved to /home/jake/Downloads/mconnect
fish: Job 1, 'mconnect -d' terminated by signal SIGSEGV (Address boundary error)

Or with another shell, the standard:

zsh: segmentation fault (core dumped)  mconnect -d

Output of `ldd`

	linux-vdso.so.1 (0x00007ffe848ec000)
	libglib-2.0.so.0 => /usr/lib/libglib-2.0.so.0 (0x00007f7c2d2f7000)
	libgobject-2.0.so.0 => /usr/lib/libgobject-2.0.so.0 (0x00007f7c2d29c000)
	libgio-2.0.so.0 => /usr/lib/libgio-2.0.so.0 (0x00007f7c2d0d2000)
	libjson-glib-1.0.so.0 => /usr/lib/libjson-glib-1.0.so.0 (0x00007f7c2d0a7000)
	libgee-0.8.so.2 => /usr/lib/libgee-0.8.so.2 (0x00007f7c2cfda000)
	libnotify.so.4 => /usr/lib/libnotify.so.4 (0x00007f7c2cfd0000)
	libgdk_pixbuf-2.0.so.0 => /usr/lib/libgdk_pixbuf-2.0.so.0 (0x00007f7c2cf88000)
	libgdk-3.so.0 => /usr/lib/libgdk-3.so.0 (0x00007f7c2ce90000)
	libXtst.so.6 => /usr/lib/libXtst.so.6 (0x00007f7c2ce88000)
	libX11.so.6 => /usr/lib/libX11.so.6 (0x00007f7c2cd46000)
	libgnutls.so.30 => /usr/lib/libgnutls.so.30 (0x00007f7c2cb57000)
	libgtk-3.so.0 => /usr/lib/libgtk-3.so.0 (0x00007f7c2c39e000)
	libc.so.6 => /usr/lib/libc.so.6 (0x00007f7c2c192000)
	libpcre.so.1 => /usr/lib/libpcre.so.1 (0x00007f7c2c11b000)
	libffi.so.8 => /usr/lib/libffi.so.8 (0x00007f7c2c10f000)
	libgmodule-2.0.so.0 => /usr/lib/libgmodule-2.0.so.0 (0x00007f7c2c108000)
	libz.so.1 => /usr/lib/libz.so.1 (0x00007f7c2c0ee000)
	libmount.so.1 => /usr/lib/libmount.so.1 (0x00007f7c2c0ab000)
	libm.so.6 => /usr/lib/libm.so.6 (0x00007f7c2bfc1000)
	libpng16.so.16 => /usr/lib/libpng16.so.16 (0x00007f7c2bf8a000)
	libjpeg.so.8 => /usr/lib/libjpeg.so.8 (0x00007f7c2bf09000)
	libtiff.so.5 => /usr/lib/libtiff.so.5 (0x00007f7c2be75000)
	libpthread.so.0 => /usr/lib/libpthread.so.0 (0x00007f7c2be70000)
	libcairo.so.2 => /usr/lib/libcairo.so.2 (0x00007f7c2bd51000)
	libpango-1.0.so.0 => /usr/lib/libpango-1.0.so.0 (0x00007f7c2bce9000)
	libfribidi.so.0 => /usr/lib/libfribidi.so.0 (0x00007f7c2bcc9000)
	libcairo-gobject.so.2 => /usr/lib/libcairo-gobject.so.2 (0x00007f7c2bcbd000)
	libepoxy.so.0 => /usr/lib/libepoxy.so.0 (0x00007f7c2bb8b000)
	libfontconfig.so.1 => /usr/lib/libfontconfig.so.1 (0x00007f7c2bb3b000)
	libpangocairo-1.0.so.0 => /usr/lib/libpangocairo-1.0.so.0 (0x00007f7c2bb2a000)
	librt.so.1 => /usr/lib/librt.so.1 (0x00007f7c2bb23000)
	libxkbcommon.so.0 => /usr/lib/libxkbcommon.so.0 (0x00007f7c2bada000)
	libwayland-client.so.0 => /usr/lib/libwayland-client.so.0 (0x00007f7c2bac8000)
	libwayland-cursor.so.0 => /usr/lib/libwayland-cursor.so.0 (0x00007f7c2babe000)
	libwayland-egl.so.1 => /usr/lib/libwayland-egl.so.1 (0x00007f7c2bab9000)
	libXi.so.6 => /usr/lib/libXi.so.6 (0x00007f7c2baa5000)
	libXext.so.6 => /usr/lib/libXext.so.6 (0x00007f7c2ba8e000)
	libXcursor.so.1 => /usr/lib/libXcursor.so.1 (0x00007f7c2ba82000)
	libXdamage.so.1 => /usr/lib/libXdamage.so.1 (0x00007f7c2ba7d000)
	libXfixes.so.3 => /usr/lib/libXfixes.so.3 (0x00007f7c2ba74000)
	libXcomposite.so.1 => /usr/lib/libXcomposite.so.1 (0x00007f7c2ba6f000)
	libXrandr.so.2 => /usr/lib/libXrandr.so.2 (0x00007f7c2ba62000)
	libXinerama.so.1 => /usr/lib/libXinerama.so.1 (0x00007f7c2ba5b000)
	libxcb.so.1 => /usr/lib/libxcb.so.1 (0x00007f7c2ba31000)
	libdl.so.2 => /usr/lib/libdl.so.2 (0x00007f7c2ba2c000)
	libp11-kit.so.0 => /usr/lib/libp11-kit.so.0 (0x00007f7c2b8f9000)
	libidn2.so.0 => /usr/lib/libidn2.so.0 (0x00007f7c2b8d7000)
	libunistring.so.2 => /usr/lib/libunistring.so.2 (0x00007f7c2b753000)
	libtasn1.so.6 => /usr/lib/libtasn1.so.6 (0x00007f7c2b73d000)
	libnettle.so.8 => /usr/lib/libnettle.so.8 (0x00007f7c2b6f6000)
	libhogweed.so.6 => /usr/lib/libhogweed.so.6 (0x00007f7c2b6ad000)
	libgmp.so.10 => /usr/lib/libgmp.so.10 (0x00007f7c2b60d000)
	/lib64/ld-linux-x86-64.so.2 => /usr/lib64/ld-linux-x86-64.so.2 (0x00007f7c2d4ab000)
	libharfbuzz.so.0 => /usr/lib/libharfbuzz.so.0 (0x00007f7c2b520000)
	libpangoft2-1.0.so.0 => /usr/lib/libpangoft2-1.0.so.0 (0x00007f7c2b505000)
	libatk-1.0.so.0 => /usr/lib/libatk-1.0.so.0 (0x00007f7c2b4dc000)
	libatk-bridge-2.0.so.0 => /usr/lib/libatk-bridge-2.0.so.0 (0x00007f7c2b4a6000)
	libcloudproviders.so.0 => /usr/lib/libcloudproviders.so.0 (0x00007f7c2b48e000)
	libtracker-sparql-3.0.so.0 => /usr/lib/libtracker-sparql-3.0.so.0 (0x00007f7c2b3ce000)
	libblkid.so.1 => /usr/lib/libblkid.so.1 (0x00007f7c2b394000)
	libzstd.so.1 => /usr/lib/libzstd.so.1 (0x00007f7c2b2e5000)
	liblzma.so.5 => /usr/lib/liblzma.so.5 (0x00007f7c2b2bc000)
	libfreetype.so.6 => /usr/lib/libfreetype.so.6 (0x00007f7c2b1f1000)
	libXrender.so.1 => /usr/lib/libXrender.so.1 (0x00007f7c2b1e4000)
	libxcb-render.so.0 => /usr/lib/libxcb-render.so.0 (0x00007f7c2b1d4000)
	libxcb-shm.so.0 => /usr/lib/libxcb-shm.so.0 (0x00007f7c2b1cd000)
	libpixman-1.so.0 => /usr/lib/libpixman-1.so.0 (0x00007f7c2b125000)
	libthai.so.0 => /usr/lib/libthai.so.0 (0x00007f7c2b11a000)
	libexpat.so.1 => /usr/lib/libexpat.so.1 (0x00007f7c2b0e9000)
	libXau.so.6 => /usr/lib/libXau.so.6 (0x00007f7c2b0e4000)
	libXdmcp.so.6 => /usr/lib/libXdmcp.so.6 (0x00007f7c2b0da000)
	libgraphite2.so.3 => /usr/lib/libgraphite2.so.3 (0x00007f7c2b0b5000)
	libdbus-1.so.3 => /usr/lib/libdbus-1.so.3 (0x00007f7c2b062000)
	libatspi.so.0 => /usr/lib/libatspi.so.0 (0x00007f7c2b027000)
	libstemmer.so.0 => /usr/lib/libstemmer.so.0 (0x00007f7c2af61000)
	libicuuc.so.70 => /usr/lib/libicuuc.so.70 (0x00007f7c2ad63000)
	libicui18n.so.70 => /usr/lib/libicui18n.so.70 (0x00007f7c2aa3d000)
	libsqlite3.so.0 => /usr/lib/libsqlite3.so.0 (0x00007f7c2a8ef000)
	libxml2.so.2 => /usr/lib/libxml2.so.2 (0x00007f7c2a765000)
	libbz2.so.1.0 => /usr/lib/libbz2.so.1.0 (0x00007f7c2a752000)
	libbrotlidec.so.1 => /usr/lib/libbrotlidec.so.1 (0x00007f7c2a744000)
	libdatrie.so.1 => /usr/lib/libdatrie.so.1 (0x00007f7c2a738000)
	libsystemd.so.0 => /usr/lib/libsystemd.so.0 (0x00007f7c2a65c000)
	libicudata.so.70 => /usr/lib/libicudata.so.70 (0x00007f7c28a40000)
	libstdc++.so.6 => /usr/lib/libstdc++.so.6 (0x00007f7c2881a000)
	libgcc_s.so.1 => /usr/lib/libgcc_s.so.1 (0x00007f7c287ff000)
	libbrotlicommon.so.1 => /usr/lib/libbrotlicommon.so.1 (0x00007f7c287da000)
	liblz4.so.1 => /usr/lib/liblz4.so.1 (0x00007f7c287b7000)
	libcap.so.2 => /usr/lib/libcap.so.2 (0x00007f7c287ab000)
	libgcrypt.so.20 => /usr/lib/libgcrypt.so.20 (0x00007f7c2866f000)
	libgpg-error.so.0 => /usr/lib/libgpg-error.so.0 (0x00007f7c28648000)

Arch Linux, using the AUR package. Happy to provide any additional info.

[vlada-dudr]

Same here. It crashes somewhere in gtk when getting default x server. I tried original bboozzoo repository and it starts without problems.

[JakeStanger]

It crashes somewhere in gtk when getting default x server.

Interesting, I wonder if that is a different but similar problem. I'm on Wayland & it was working fine before

[grimpy]

Not sure why I didnt get a notification mail when this was reported, thanks for reporting it seems I made a typo when I was trying to make mconnect work on a headless node.

Should be fixed now

[JakeStanger]

Can confirm it's now working, thanks for fixing!

[selurvedu]

@grimpy could you give me a hint why did you change Gtk.init_check to Gtk.init in 3991150?

I'm asking because that exactly the opposite of what I did in bboozzoo#61.