Public bug reported:
Discord and several other applications using libappindicator are widely
reported to have been crashing for several years. See:
https://github.com/flathub/com.discordapp.Discord/issues/30 (and others)
This is the backtrace:
(gdb) bt full
#0 0x00007fe1d5d2e00e in () at /app/lib/libappindicator.so
#1 0x00007fe1f5a6f3c5 in g_closure_invoke () at /lib/libgobject-2.0.so.0
#2 0x00007fe1f5a813d2 in () at /lib/libgobject-2.0.so.0
#3 0x00007fe1f5a8a02c in g_signal_emit_valist () at /lib/libgobject-2.0.so.0
#4 0x00007fe1f5a8a40f in g_signal_emit () at /lib/libgobject-2.0.so.0
#5 0x00007fe1d5d2ed4f in app_indicator_set_icon_full () at
/app/lib/libappindicator.so
#6 0x000000000077851a in ()
#7 0x0000000001de7123 in ()
#8 0x0000000001e4bd4e in ()
#9 0x0000000001e6e34c in ()
#10 0x0000000001e6e668 in ()
#11 0x0000000001e6e9cb in ()
#12 0x0000000001df971a in ()
#13 0x00007fe1f354b1c7 in g_main_context_dispatch () at /lib/libglib-2.0.so.0
#14 0x00007fe1f354b430 in () at /lib/libglib-2.0.so.0
#15 0x00007fe1f354b4dc in g_main_context_iteration () at /lib/libglib-2.0.so.0
#16 0x0000000001df9606 in ()
#17 0x0000000001e6e0e7 in ()
#18 0x0000000001e29570 in ()
#19 0x0000000000c37ec8 in ()
#20 0x0000000000c37d15 in ()
#21 0x0000000000c1da7d in ()
#22 0x0000000000a9282e in ()
#23 0x00000000007892d4 in ()
#24 0x00000000007896e0 in ()
#25 0x0000000003b830a3 in main ()
Happens in all versions of libappindicator built from latest sources
available on launchpad.
I ran into the issue yesterday when installing Discord for the first
time. I have tracked the problem down to libappindicator passing in an
extra vararg item to g_signal_emit that the signal's definition in
libappindicator was not declaring, causing the crash you see above in
gobject's g_signal dispatch machinery.
Patch is attached.
I am presuming this is 'upstream' for libappindicator, whatever that may
mean for what appears to be an unmaintained project. If it is not, and
since it is an Ubuntu/Canonical-sourced project originally, I
respectfully request that you assist in upstreaming it since this bug is
causing severe breakage for users across all distros.
** Affects: libappindicator (Ubuntu)
Importance: Undecided
Status: New
** Affects: libappindicator (Arch Linux)
Importance: Undecided
Status: New
** Patch added: "Stop passing in undeclared boolean vararg"
https://bugs.launchpad.net/bugs/1867996/+attachment/5338540/+files/segfault-fix.patch
** Also affects: libappindicator (Arch Linux)
Importance: Undecided
Status: New
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https://bugs.launchpad.net/bugs/1867996
Title:
Segfault in app_indicator_set_icon_full [patch attached]
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