*** This bug is a duplicate of bug 1199877 *** https://bugs.launchpad.net/bugs/1199877
Marking this as a duplicate to bug #1199877. ** This bug has been marked a duplicate of bug 1199877 unity-panel-service pegs one of my CPUs at 100% -- You received this bug notification because you are a member of DX Packages, which is subscribed to unity in Ubuntu. Matching subscriptions: dx-packages https://bugs.launchpad.net/bugs/1211458 Title: unity-panel-service consumes 100% of CPU Status in Unity: Triaged Status in “unity” package in Ubuntu: Triaged Bug description: unity-panel-service frequently gets into a tight loop and consumes 100% of the CPU. It's not always in this state, but often is. A side effect of this state is that indicators and menus can be very slow (~30sec) to open. The indicators/menus open quickly when u-p-s is not consuming lots of CPU. u-p-s can stay in this state for a couple minutes before returning to a quiescent state. I don't know the exact steps to reproduce this behavior. It's a regression from 13.04. Stack trace of u-p-s when it's consuming 100% of CPU: (gdb) thread apply all bt Thread 3 (Thread 0x7f5130b6e700 (LWP 2118)): #0 0x00007f51387273dd in poll () at ../sysdeps/unix/syscall-template.S:81 #1 0x00007f5138c66394 in g_main_context_poll (priority=2147483647, n_fds=3, fds=0x7f512c0010c0, timeout=-1, context=0x2498e40) at /build/buildd/glib2.0-2.37.3/./glib/gmain.c:3999 #2 g_main_context_iterate (context=0x2498e40, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/buildd/glib2.0-2.37.3/./glib/gmain.c:3700 #3 0x00007f5138c667fa in g_main_loop_run (loop=0x2498dd0) at /build/buildd/glib2.0-2.37.3/./glib/gmain.c:3899 #4 0x00007f5139461646 in gdbus_shared_thread_func (user_data=0x2498e10) at /build/buildd/glib2.0-2.37.3/./gio/gdbusprivate.c:278 #5 0x00007f5138c8ac25 in g_thread_proxy (data=0x24454f0) at /build/buildd/glib2.0-2.37.3/./glib/gthread.c:798 #6 0x00007f5138a08f6e in start_thread (arg=0x7f5130b6e700) at pthread_create.c:311 #7 0x00007f5138733e2d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113 Thread 2 (Thread 0x7f512bdf3700 (LWP 2164)): #0 0x00007f51387273dd in poll () at ../sysdeps/unix/syscall-template.S:81 #1 0x00007f5138c66394 in g_main_context_poll (priority=2147483647, n_fds=1, ---Type <return> to continue, or q <return> to quit--- fds=0x7f51240010c0, timeout=-1, context=0x2442d60) at /build/buildd/glib2.0-2.37.3/./glib/gmain.c:3999 #2 g_main_context_iterate (context=context@entry=0x2442d60, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/buildd/glib2.0-2.37.3/./glib/gmain.c:3700 #3 0x00007f5138c6649c in g_main_context_iteration (context=0x2442d60, may_block=1) at /build/buildd/glib2.0-2.37.3/./glib/gmain.c:3766 #4 0x00007f512bdfaa9d in ?? () from /usr/lib/x86_64-linux-gnu/gio/modules/libdconfsettings.so #5 0x00007f5138c8ac25 in g_thread_proxy (data=0x25b2f70) at /build/buildd/glib2.0-2.37.3/./glib/gthread.c:798 #6 0x00007f5138a08f6e in start_thread (arg=0x7f512bdf3700) at pthread_create.c:311 #7 0x00007f5138733e2d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:113 Thread 1 (Thread 0x7f513adff980 (LWP 2103)): #0 0x00007f5138f3edd5 in handlers_find (instance=instance@entry=0x247eec0, mask=<optimized out>, mask@entry=(G_SIGNAL_MATCH_FUNC | G_SIGNAL_MATCH_DATA), signal_id=signal_id@entry=0, detail=detail@entry=0, closure=closure@entry=0x0, func=func@entry=0x7f5139dc0460 <gtk_style_context_cascade_changed>, ---Type <return> to continue, or q <return> to quit--- data=data@entry=0x518d3d0, one_and_only=one_and_only@entry=0) at /build/buildd/glib2.0-2.37.3/./gobject/gsignal.c:555 #1 0x00007f5138f3f0df in signal_handlers_foreach_matched_R ( instance=instance@entry=0x247eec0, mask=mask@entry=(G_SIGNAL_MATCH_FUNC | G_SIGNAL_MATCH_DATA), signal_id=signal_id@entry=0, detail=detail@entry=0, closure=closure@entry=0x0, func=func@entry=0x7f5139dc0460 <gtk_style_context_cascade_changed>, data=data@entry=0x518d3d0, callback=callback@entry=0x7f5138f3e900 <g_signal_handler_disconnect>) at /build/buildd/glib2.0-2.37.3/./gobject/gsignal.c:2730 #2 0x00007f5138f47147 in g_signal_handlers_disconnect_matched ( instance=0x247eec0, mask=mask@entry=(G_SIGNAL_MATCH_FUNC | G_SIGNAL_MATCH_DATA), signal_id=signal_id@entry=0, detail=detail@entry=0, closure=closure@entry=0x0, func=func@entry=0x7f5139dc0460 <gtk_style_context_cascade_changed>, data=data@entry=0x518d3d0) at /build/buildd/glib2.0-2.37.3/./gobject/gsignal.c:2880 #3 0x00007f5139dc04dc in gtk_style_context_set_cascade ( context=context@entry=0x518d3d0, cascade=cascade@entry=0x0) at /build/buildd/gtk+3.0-3.8.2/./gtk/gtkstylecontext.c:700 #4 0x00007f5139dc20b6 in gtk_style_context_finalize (object=0x518d3d0) ---Type <return> to continue, or q <return> to quit--- at /build/buildd/gtk+3.0-3.8.2/./gtk/gtkstylecontext.c:858 #5 0x00007f5138f32c9a in g_object_unref (_object=0x518d3d0) at /build/buildd/glib2.0-2.37.3/./gobject/gobject.c:3194 #6 0x00007f5139e5ceda in gtk_widget_finalize (object=0x5451c00) at /build/buildd/gtk+3.0-3.8.2/./gtk/gtkwidget.c:10850 #7 0x00007f5138f32c9a in g_object_unref (_object=0x5451c00) at /build/buildd/glib2.0-2.37.3/./gobject/gobject.c:3194 #8 0x00007f5139cabf50 in gtk_container_destroy (widget=0x54ecb30) at /build/buildd/gtk+3.0-3.8.2/./gtk/gtkcontainer.c:1377 #9 0x00007f5138f2e268 in g_closure_invoke (closure=0x241e780, return_value=0x0, n_param_values=1, param_values=0x7fff50f0c9a0, invocation_hint=0x7fff50f0c940) at /build/buildd/glib2.0-2.37.3/./gobject/gclosure.c:777 #10 0x00007f5138f40a64 in signal_emit_unlocked_R (node=node@entry=0x2428450, detail=detail@entry=0, instance=instance@entry=0x54ecb30, emission_return=emission_return@entry=0x0, instance_and_params=instance_and_params@entry=0x7fff50f0c9a0) at /build/buildd/glib2.0-2.37.3/./gobject/gsignal.c:3698 #11 0x00007f5138f488ba in g_signal_emit_valist (instance=<optimized out>, signal_id=<optimized out>, detail=<optimized out>, var_args=var_args@entry=0x7fff50f0cb28) at /build/buildd/glib2.0-2.37.3/./gobject/gsignal.c:3326 #12 0x00007f5138f48b92 in g_signal_emit (instance=instance@entry=0x54ecb30, ---Type <return> to continue, or q <return> to quit--- signal_id=<optimized out>, detail=detail@entry=0) at /build/buildd/glib2.0-2.37.3/./gobject/gsignal.c:3382 #13 0x00007f5139e6ac10 in gtk_widget_dispose (object=0x54ecb30) at /build/buildd/gtk+3.0-3.8.2/./gtk/gtkwidget.c:10771 #14 0x00007f5138f32c0c in g_object_unref (_object=0x54ecb30) at /build/buildd/glib2.0-2.37.3/./gobject/gobject.c:3157 #15 0x00007f5138f31344 in g_cclosure_marshal_VOID__OBJECTv (closure=0x243df00, return_value=<optimized out>, instance=<optimized out>, args=<optimized out>, marshal_data=0x7f5139d4a6f0 <gtk_menu_remove>, n_params=<optimized out>, param_types=0x243df30) at /build/buildd/glib2.0-2.37.3/./gobject/gmarshal.c:1316 #16 0x00007f5138f2e497 in _g_closure_invoke_va (closure=0x243df00, return_value=0x0, instance=0x568eb30, args=0x7fff50f0ce68, n_params=1, param_types=0x243df30) at /build/buildd/glib2.0-2.37.3/./gobject/gclosure.c:840 #17 0x00007f5138f482bc in g_signal_emit_valist (instance=0x568eb30, signal_id=<optimized out>, detail=<optimized out>, var_args=var_args@entry=0x7fff50f0ce68) at /build/buildd/glib2.0-2.37.3/./gobject/gsignal.c:3234 #18 0x00007f5138f48b92 in g_signal_emit (instance=<optimized out>, signal_id=<optimized out>, detail=detail@entry=0) at /build/buildd/glib2.0-2.37.3/./gobject/gsignal.c:3382 #19 0x00007f5139caa4e4 in gtk_container_remove (container=<optimized out>, ---Type <return> to continue, or q <return> to quit--- widget=<optimized out>) at /build/buildd/gtk+3.0-3.8.2/./gtk/gtkcontainer.c:1546 #20 0x00007f5139d5d5ac in gtk_model_menu_binding_populate ( binding=binding@entry=0x56b6240) at /build/buildd/gtk+3.0-3.8.2/./gtk/gtkmodelmenu.c:342 #21 0x00007f5139d5d640 in gtk_model_menu_binding_handle_changes ( user_data=0x56b6240) at /build/buildd/gtk+3.0-3.8.2/./gtk/gtkmodelmenu.c:366 #22 0x00007f513993ac48 in gdk_threads_dispatch (data=0xad58240) at /build/buildd/gtk+3.0-3.8.2/./gdk/gdk.c:788 #23 0x00007f5138c660a6 in g_main_dispatch (context=0x247d830) at /build/buildd/glib2.0-2.37.3/./glib/gmain.c:3058 #24 g_main_context_dispatch (context=context@entry=0x247d830) at /build/buildd/glib2.0-2.37.3/./glib/gmain.c:3634 #25 0x00007f5138c663f8 in g_main_context_iterate (context=0x247d830, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at /build/buildd/glib2.0-2.37.3/./glib/gmain.c:3705 #26 0x00007f5138c667fa in g_main_loop_run (loop=0x25f9e00) at /build/buildd/glib2.0-2.37.3/./glib/gmain.c:3899 #27 0x00007f5139d3d365 in gtk_main () at /build/buildd/gtk+3.0-3.8.2/./gtk/gtkmain.c:1156 #28 0x0000000000404c87 in main () (gdb) ProblemType: Bug DistroRelease: Ubuntu 13.10 Package: unity-services 7.1.0+13.10.20130809.1-0ubuntu1 ProcVersionSignature: Ubuntu 3.10.0-6.17-generic 3.10.3 Uname: Linux 3.10.0-6-generic x86_64 NonfreeKernelModules: nvidia ApportVersion: 2.12-0ubuntu3 Architecture: amd64 CompizPlugins: No value set for `/apps/compiz-1/general/screen0/options/active_plugins' Date: Mon Aug 12 14:13:56 2013 InstallationDate: Installed on 2010-09-17 (1060 days ago) InstallationMedia: Ubuntu 10.10 "Maverick Meerkat" - Beta amd64 (20100901.1) MarkForUpload: True SourcePackage: unity UpgradeStatus: Upgraded to saucy on 2013-08-07 (5 days ago) To manage notifications about this bug go to: https://bugs.launchpad.net/unity/+bug/1211458/+subscriptions -- Mailing list: https://launchpad.net/~dx-packages Post to : dx-packages@lists.launchpad.net Unsubscribe : https://launchpad.net/~dx-packages More help : https://help.launchpad.net/ListHelp