[Xfce-bugs] [Bug 15404] New: crash in xfsm_manager_get_shutdown_type

[bugzilla-daemon at xfce.org]

https://bugzilla.xfce.org/show_bug.cgi?id=15404

            Bug ID: 15404
           Summary: crash in xfsm_manager_get_shutdown_type
    Classification: Xfce Core
           Product: Xfce4-session
           Version: Unspecified
          Hardware: PC (x86_64)
                OS: Linux
            Status: NEW
          Severity: normal
          Priority: Medium
         Component: General
          Assignee: xfce-bugs at xfce.org
          Reporter: olaf at aepfle.de
  Target Milestone: Xfce 4.14

xfce4-session-20190509T183109.1c49c2cd 
Unclear what I did. I think it was an accidental "switch user" instead of "lock
screen", the icons are just too close together. From the timestamps it was
apparently the relogin or whatever happens if one comes back from sddm.

Core was generated by `xfce4-session'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0  xfsm_manager_get_shutdown_type (manager=0x0) at xfsm-manager.c:1942
1942      return manager->shutdown_type;
[Current thread is 1 (Thread 0x7f86e6791a80 (LWP 27467))]
(gdb) bt
#0  xfsm_manager_get_shutdown_type (manager=0x0) at xfsm-manager.c:1942
#1  name_lost (connection=<optimized out>, name=<optimized out>, user_data=0x0)
at main.c:228
#2  do_call (client=0x5644d61d5c40, call_type=CALL_TYPE_NAME_LOST) at
gdbusnameowning.c:215
#3  request_name_cb (source_object=<optimized out>, res=<optimized out>,
user_data=0x5644d61d5c40) at gdbusnameowning.c:341
#4  g_task_return_now (task=0x5644d6130200 [GTask]) at gtask.c:1145
#5  g_task_return (task=0x5644d6130200 [GTask], type=<optimized out>) at
gtask.c:1203
#6  g_dbus_connection_call_done (source=<optimized out>, result=0x5644d6130130,
user_data=0x5644d6130200) at gdbusconnection.c:5722
#7  g_task_return_now (task=0x5644d6130130 [GTask]) at gtask.c:1145
#8  complete_in_idle_cb (task=task at entry=0x5644d6130130) at gtask.c:1159
#9  g_idle_dispatch (source=0x7f86c800fbb0, callback=0x7f86e38be210
<complete_in_idle_cb>, user_data=0x5644d6130130) at gmain.c:5486
#10  g_main_dispatch (context=0x5644d60f35e0) at gmain.c:3142
#11  g_main_context_dispatch (context=context at entry=0x5644d60f35e0) at
gmain.c:3795
#12  g_main_context_iterate (context=0x5644d60f35e0, block=block at entry=1,
dispatch=dispatch at entry=1, self=<optimized out>) at gmain.c:3868
#13  g_main_loop_run (loop=0x5644d621f750) at gmain.c:4064
#14  gtk_main () at gtkmain.c:1323
#15  main (argc=<optimized out>, argv=<optimized out>) at main.c:363

so for some reason user_data==NULL is not handled. Not sure if that is supposed
to happen, and the bug is elsewhere.

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