Re: segfault caused by glib/gtk?

[Tristan Van Berkom <vantr touchtunes com>]

        ok; obviously the problem here
is that (source->context != context);
not that that should mean anything to
someone not familiar with the guts of glib.

I'm going to through a wild guess on 
the table here.

a "source" in glib is something
used to dispatch events or the like.
(i.e. g_timeout_add returns the "source"
used by the main loop to call your
timeout callback... remove it with
g_source_remove()).

I'm not sure about "context" but
as I can see
> #1  0x4077624b in pthread_kill () from /lib/libpthread.so.0
you're using threads.

is it possible that the main_loop associated
with thread 1 (context 1 ?) is trying to 
execute the source created by thread 2 (context 2 ?). ?

Again; its just a wild guess. if it were me; I'd
read the code to be sure.

HTH,
                        -Tristan

Thijs Assies wrote:
> hi!
>
> my program suddenly chrashes, while trying to figure out where, i found
> this:
>
> GLib-ERROR **: file gmain.c: line 1633 (g_main_dispatch): assertion
> failed: (source->context == context)
> aborting...
>
> Program received signal SIGABRT, Aborted.
> [Switching to Thread 16384 (LWP 18295)]
> 0x40846911 in kill () from /lib/libc.so.6
> (gdb) backtrace
> #0  0x40846911 in kill () from /lib/libc.so.6
> #1  0x4077624b in pthread_kill () from /lib/libpthread.so.0
> #2  0x40776521 in raise () from /lib/libpthread.so.0
> #3  0x40847846 in abort () from /lib/libc.so.6
> #4  0x407e3970 in g_logv (log_domain=0x407ffc8d "GLib",
> log_level=G_LOG_LEVEL_ERROR,
>     format=0x408000a0 "file %s: line %d (%s): assertion failed: (%s)",
> args1=0xbffff91c) at gmessages.c:507
> #5  0x407e3a1d in g_log (log_domain=0x407ffc8d "GLib",
> log_level=G_LOG_LEVEL_ERROR,
>     format=0x408000a0 "file %s: line %d (%s): assertion failed: (%s)")
> at gmessages.c:526
> #6  0x407dc890 in g_main_dispatch (context=0x805fd50) at gmain.c:1633
> #7  0x407dd5f7 in g_main_context_dispatch (context=0x805fd50) at
> gmain.c:2161
> #8  0x407dd9d3 in g_main_context_iterate (context=0x805fd50, block=1,
> dispatch=1, self=0x8051ac8) at gmain.c:2242
> #9  0x407de0af in g_main_loop_run (loop=0x814ab50) at gmain.c:2462
> #10 0x4026734f in gtk_main () from /usr/lib/libgtk-x11-2.0.so.0
> #11 0x0804d274 in main (argc=1, argv=0xbffffaf4) at got_topics.c:42
>
> i cont find wich line of my code causes this error! (line 42 of
> got_topic.c = gtk_main(); )
> how can i find out?
>
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