xfce4-power-manager segfaults randomly

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2 participants
  • Michael Rohleder
  • Nathan Dehnel
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unassigned
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Nathan Dehnel
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Nathan Dehnel wrote on 6 Jul 2021 17:06
(name . Tobias Geerinckx-Rice via Bug reports for GNU Guix)(address . bug-guix@gnu.org)
CAEEhgEudjnT_zC1tLFvxg41Wz0nFTuZK73ZX0DnTj+0z2WrYTg@mail.gmail.com
Using v4.16.0. Attached is a backtrace. I have a coredump, but it's
too large to attach to an email.
#0 0x00007f995c4c75bc in gtk_widget_dispose ()
from /gnu/store/nd2i0wfhx2wsdn3di573wl7kagg6pm9s-gtk+-3.24.24/lib/libgtk-3.so.0
#1 0x00007f995baee8a3 in g_object_unref ()
from /gnu/store/jsqxxnaj5p8a22mrsvl679gi7jl26z4j-glib-2.62.6/lib/libgobject-2.0.so.0
#2 0x000000000041ea61 in battery_device_remove_pix ()
#3 0x000000000041f37d in power_manager_button_update_device_icon_and_details ()
#4 0x00007f995bae9b3d in g_closure_invoke ()
from /gnu/store/jsqxxnaj5p8a22mrsvl679gi7jl26z4j-glib-2.62.6/lib/libgobject-2.0.so.0
#5 0x00007f995bafccce in signal_emit_unlocked_R ()
from /gnu/store/jsqxxnaj5p8a22mrsvl679gi7jl26z4j-glib-2.62.6/lib/libgobject-2.0.so.0
#6 0x00007f995bb055b5 in g_signal_emit_valist ()
from /gnu/store/jsqxxnaj5p8a22mrsvl679gi7jl26z4j-glib-2.62.6/lib/libgobject-2.0.so.0
#7 0x00007f995bb05f72 in g_signal_emit ()
from /gnu/store/jsqxxnaj5p8a22mrsvl679gi7jl26z4j-glib-2.62.6/lib/libgobject-2.0.so.0
#8 0x00007f995baeddd4 in g_object_dispatch_properties_changed ()
from /gnu/store/jsqxxnaj5p8a22mrsvl679gi7jl26z4j-glib-2.62.6/lib/libgobject-2.0.so.0
#9 0x00007f995baf0229 in g_object_notify ()
from /gnu/store/jsqxxnaj5p8a22mrsvl679gi7jl26z4j-glib-2.62.6/lib/libgobject-2.0.so.0
#10 0x00007f995bae9b3d in g_closure_invoke ()
from /gnu/store/jsqxxnaj5p8a22mrsvl679gi7jl26z4j-glib-2.62.6/lib/libgobject-2.0.so.0
#11 0x00007f995bafccce in signal_emit_unlocked_R ()
from /gnu/store/jsqxxnaj5p8a22mrsvl679gi7jl26z4j-glib-2.62.6/lib/libgobject-2.0.so.0
#12 0x00007f995bb055b5 in g_signal_emit_valist ()
from /gnu/store/jsqxxnaj5p8a22mrsvl679gi7jl26z4j-glib-2.62.6/lib/libgobject-2.0.so.0
#13 0x00007f995bb05f72 in g_signal_emit ()
from /gnu/store/jsqxxnaj5p8a22mrsvl679gi7jl26z4j-glib-2.62.6/lib/libgobject-2.0.so.0
#14 0x00007f995baeddd4 in g_object_dispatch_properties_changed ()
from /gnu/store/jsqxxnaj5p8a22mrsvl679gi7jl26z4j-glib-2.62.6/lib/libgobject-2.0.so.0
#15 0x00007f995baf0229 in g_object_notify ()
from /gnu/store/jsqxxnaj5p8a22mrsvl679gi7jl26z4j-glib-2.62.6/lib/libgobject-2.0.so.0
#16 0x00007f995bb4b88c in up_exported_device_proxy_g_properties_changed ()
from /gnu/store/f8xgyiss6frzswh561r9718diwr4k36y-upower-0.99.11/lib/libupower-glib.so.3
#17 0x00007f995bae9b3d in g_closure_invoke ()
from /gnu/store/jsqxxnaj5p8a22mrsvl679gi7jl26z4j-glib-2.62.6/lib/libgobject-2.0.so.0
#18 0x00007f995bafc728 in signal_emit_unlocked_R ()
from /gnu/store/jsqxxnaj5p8a22mrsvl679gi7jl26z4j-glib-2.62.6/lib/libgobject-2.0.so.0
#19 0x00007f995bb055b5 in g_signal_emit_valist ()
from /gnu/store/jsqxxnaj5p8a22mrsvl679gi7jl26z4j-glib-2.62.6/lib/libgobject-2.0.so.0
#20 0x00007f995bb05f72 in g_signal_emit ()
from /gnu/store/jsqxxnaj5p8a22mrsvl679gi7jl26z4j-glib-2.62.6/lib/libgobject-2.0.so.0
#21 0x00007f995bc6c8f1 in on_properties_changed ()
from /gnu/store/jsqxxnaj5p8a22mrsvl679gi7jl26z4j-glib-2.62.6/lib/libgio-2.0.so.0
#22 0x00007f995bc5bc54 in emit_signal_instance_in_idle_cb ()
from /gnu/store/jsqxxnaj5p8a22mrsvl679gi7jl26z4j-glib-2.62.6/lib/libgio-2.0.so.0
#23 0x00007f995ba00f14 in g_main_context_dispatch ()
from /gnu/store/jsqxxnaj5p8a22mrsvl679gi7jl26z4j-glib-2.62.6/lib/libglib-2.0.so.0
#24 0x00007f995ba01288 in g_main_context_iterate.isra ()
from /gnu/store/jsqxxnaj5p8a22mrsvl679gi7jl26z4j-glib-2.62.6/lib/libglib-2.0.so.0
#25 0x00007f995ba01542 in g_main_loop_run ()
from /gnu/store/jsqxxnaj5p8a22mrsvl679gi7jl26z4j-glib-2.62.6/lib/libglib-2.0.so.0
#26 0x00007f995c389685 in gtk_main ()
from /gnu/store/nd2i0wfhx2wsdn3di573wl7kagg6pm9s-gtk+-3.24.24/lib/libgtk-3.so.0
#27 0x000000000040bff5 in xfpm_start ()
#28 0x000000000040c780 in main ()
M
M
Michael Rohleder wrote on 7 Jul 2021 07:46
(name . Nathan Dehnel)(address . ncdehnel@gmail.com)(address . 49441@debbugs.gnu.org)
87r1gak75q.fsf@rohleder.de
Hello Nathan!

Thank you for the report and the backtrace!

Nathan Dehnel <ncdehnel@gmail.com> writes:
Toggle quote (10 lines)
> Using v4.16.0. Attached is a backtrace. I have a coredump, but it's
> too large to attach to an email.
>
> #0 0x00007f995c4c75bc in gtk_widget_dispose ()
> from /gnu/store/nd2i0wfhx2wsdn3di573wl7kagg6pm9s-gtk+-3.24.24/lib/libgtk-3.so.0
> #1 0x00007f995baee8a3 in g_object_unref ()
> from /gnu/store/jsqxxnaj5p8a22mrsvl679gi7jl26z4j-glib-2.62.6/lib/libgobject-2.0.so.0
> #2 0x000000000041ea61 in battery_device_remove_pix ()
> #3 0x000000000041f37d in power_manager_button_update_device_icon_and_details ()

looks like it is crashing here:
(`guix build -S xfce4-power-manager`/panel-plugins/power-manager-plugin/power-manager-button.c:607)

/* This function unrefs the pix and img from the battery device and
* disconnects the expose-event callback on the img.
*/
static void
battery_device_remove_pix (BatteryDevice *battery_device)
{
TRACE("entering");

if (battery_device == NULL)
return;

if (G_IS_OBJECT (battery_device->pix))
{
if (GTK_IS_WIDGET (battery_device->img))
{
if (battery_device->expose_signal_id != 0)
{
g_signal_handler_disconnect (battery_device->img, battery_device->expose_signal_id);
battery_device->expose_signal_id = 0;
}
g_object_unref (battery_device->img);
battery_device->img = NULL;
}
g_object_unref (battery_device->pix);
battery_device->pix = NULL;
}
}

I wonder how that can happen and so far I was not able to reproduce
this.

Do you get something on the console/stdout if you start
xfce4-power-manager on the console?

If that happens only sometimes: Maybe is it after you change something
at runtime, maybe changeing a battery or so?


--
You are not supposed to start Emacs more than once in a lifetime, so
the startup time shouldn't matter at all.
Eli Zaretskii in help-gnu-emacs
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