Bug#934105: xfdesktop4: xfdesktop crashes and coredump when upgrading
Hello Jun Jiang,
thanks for the additional information.
> As for for question at the end about changing display resolution, I don't
> follow you. Pardon me if I am misunderstanding, are you asking whether I
> changed screen resolution when it happened? If that's what you mean, then
> no, I haven't change my screen resolution since I don't even remember when.
> Also, before, during or after the crash, screen resolution remained fine.
> In fact, all opened windows were fine except wallpaper and xfce4-panel
> disappeared and appeared again as I mentioned.
As I could not get it crashing by just doing upgrades, I tried to
inspect a running process and got into a source file named "screen.c"
and functions related to screen resolution. Then I tried to change
resolution and the xfdesktop got into a similar backtrace still without
crashing. Therefore I asked if your processes would crash, if you
try changing the resolution.
> Anyway, I managed to get the backtrace output:
>
> #0 0x00007fc31ce4975a in magazine_chain_pop_head (magazine_chunks=0x55a6673027e0) at ../../../glib/gslice.c:538
> #1 0x00007fc31ce4975a in thread_memory_magazine1_alloc (tmem=0x55a6673027c0, ix=1) at ../../../glib/gslice.c:841
> #2 0x00007fc31ce4975a in g_slice_alloc (mem_size=mem_size@entry=24) at ../../../glib/gslice.c:1015
> #3 0x00007fc31ce27316 in g_list_prepend (list=list@entry=0x55a66745dd50 = {...}, data=data@entry=0x55a66741fa20) at ../../../glib/glist.c:314
> #4 0x00007fc31daf4b87 in update_client_list (screen=0x55a6673f78a0 [WnckScreen]) at screen.c:1637
> #5 0x00007fc31daf4b87 in do_update_now (screen=0x55a6673f78a0 [WnckScreen]) at screen.c:2332
> #6 0x00007fc31daf5b44 in update_idle (data=<optimized out>) at screen.c:2355
> #7 0x00007fc31ce2b898 in g_main_dispatch (context=0x55a66731e690) at ../../../glib/gmain.c:3189
> #8 0x00007fc31ce2b898 in g_main_context_dispatch (context=context@entry=0x55a66731e690) at ../../../glib/gmain.c:3854
> #9 0x00007fc31ce2bc88 in g_main_context_iterate (context=0x55a66731e690, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../../../glib/gmain.c:3927
> #10 0x00007fc31ce2bf82 in g_main_loop_run (loop=0x55a6673fb780) at ../../../glib/gmain.c:4123
> #11 0x00007fc31d75d8e7 in IA__gtk_main () at ./gtk/gtkmain.c:1270
> #12 0x000055a665e6fc6c in xfdesktop_application_start (app=0x55a66731a150 [XfdesktopApplication]) at xfdesktop-application.c:768
> #13 0x000055a665e700a6 in cb_wait_for_window_manager_destroyed (data=0x7fc30c007b60) at xfdesktop-application.c:630
> #14 0x00007fc31ce28263 in g_source_callback_unref (cb_data=0x55a667366d50) at ../../../glib/gmain.c:1553
> #15 0x00007fc31ce28263 in g_source_callback_unref (cb_data=0x55a667366d50) at ../../../glib/gmain.c:1546
> #16 0x00007fc31ce28c9e in g_source_destroy_internal (source=0x55a66737b2c0, context=0x55a66731e690, have_lock=1) at ../../../glib/gmain.c:1238
> #17 0x00007fc31ce2b928 in g_main_dispatch (context=0x55a66731e690) at ../../../glib/gmain.c:3213
> #18 0x00007fc31ce2b928 in g_main_context_dispatch (context=context@entry=0x55a66731e690) at ../../../glib/gmain.c:3854
> #19 0x00007fc31ce2bc88 in g_main_context_iterate (context=context@entry=0x55a66731e690, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../../../glib/gmain.c:3927
> #20 0x00007fc31ce2bd1c in g_main_context_iteration(context=context@entry=0x55a66731e690, may_block=may_block@entry=1) at ../../../glib/gmain.c:3988
> #21 0x00007fc31d0aca0d in g_application_run (application=0x55a66731a150 [XfdesktopApplication], argc=<optimized out>, argv=0x7fff34b18268) at ../../../gio/gapplication.c:2516
> #22 0x000055a665e64fad in main (argc=5, argv=0x7fff34b18268) at main.c:86
I found a similar report was reported by another user in
https://bugs.debian.org/933202
Unfortunately I found not yet such an error in
the upstream bugtracker neither of xfce nor libwnck.
Kind regards,
Bernhard
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