Comment 24 for bug 1959937

I'm looking into a problem in one of the openQA tests - the desktop_login test - and it seems related to this crash.

That test tests creating a couple of different user accounts and logging in, logging out, user switching and so on. Sometimes, in F36 and Rawhide, when we try to log out of an account, it takes way longer than expected to actually end the session and go back to GDM - about a minute and a half (usually it's a few seconds).

I grabbed the logs from one such failure and found what looks like this same crash logged right around the time the session finally ended and we returned to GDM:

Thread 1 (Thread 0x7ff8e3f475c0 (LWP 3631)):
#0 meta_context_terminate (context=0x0) at ../src/core/meta-context.c:451
        _g_boolean_var_ = <optimized out>
        priv = 0xffffffffffffffa0
        __func__ = "meta_context_terminate"
#1 0x00007ff8ea67ba86 in process_ice_messages (channel=<optimized out>, condition=<optimized out>, user_data=0x7ff8ed0de6f0) at ../src/x11/session.c:116
        ice_connection = <optimized out>
        connection = <optimized out>
        status = <optimized out>
#2 process_ice_messages (channel=<optimized out>, condition=<optimized out>, user_data=0x7ff8ed0de6f0) at ../src/x11/session.c:95
        ice_connection = 0x7ff8ed0de6f0
        connection = <optimized out>
        status = <optimized out>
#3 0x00007ff8eb2ca1bf in g_main_dispatch (context=0x7ff8ecc614f0) at ../glib/gmain.c:3413
        dispatch = 0x7ff8eb31d950 <g_io_unix_dispatch>
        prev_source = 0x0
        begin_time_nsec = 543677000869
        was_in_call = 0
        user_data = 0x7ff8ed0de6f0
        callback = 0x7ff8ea67ba30 <process_ice_messages>
        cb_funcs = 0x7ff8eb3af3e0 <g_source_callback_funcs>
        cb_data = 0x7ff8ed512480
        need_destroy = <optimized out>
        source = 0x7ff8ecf7b0e0
        current = 0x7ff8ecc9fe60
        i = 0
        __func__ = <optimized out>
#4 g_main_context_dispatch (context=0x7ff8ecc614f0) at ../glib/gmain.c:4131
No locals.
#5 0x00007ff8eb31f2d8 in g_main_context_iterate.constprop.0 (context=0x7ff8ecc614f0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../glib/gmain.c:4207
        max_priority = 2147483647
        timeout = 102634
        some_ready = 1
        nfds = 13
        allocated_nfds = <optimized out>
        fds = <optimized out>
        begin_time_nsec = 489151985844
#6 0x00007ff8eb2c98ef in g_main_loop_run (loop=0x7ff8ee8c5b50) at ../glib/gmain.c:4405
        self = <optimized out>
        __func__ = "g_main_loop_run"
#7 0x00007ff8ea642289 in meta_context_run_main_loop (context=<optimized out>, error=0x7ffd82a13550) at ../src/core/meta-context.c:433
        priv = 0x7ff8ecc5c000
        __func__ = "meta_context_run_main_loop"
#8 0x00007ff8eb8b8dd1 in main (argc=<optimized out>, argv=<optimized out>) at ../src/main.c:563
        context = 0x7ff8ecc5c060
        error = 0x0
        ecode = 0

I note there's also an Ubuntu bug for a similar traceback:

https://bugs.launchpad.net/ubuntu/+source/gnome-shell/+bug/1959937