Bug 376483

Can you please run it through gdb.

(In reply to Kai Uwe Broulik from comment #1)
> Can you please run it through gdb.

[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib64/libthread_db.so.1".
[New Thread 0x7fffd972a700 (LWP 27660)]
[New Thread 0x7fffd3df5700 (LWP 27661)]
[Thread 0x7fffd3df5700 (LWP 27661) exited]
[Thread 0x7ffff7e17940 (LWP 27562) exited]
[Inferior 1 (process 27562) exited normally]
(gdb) [21272:21272:0214/190944.879540:ERROR:interface_registry.cc(210)] Failed to locate a binder for interface: mojom::ResourceUsageReporter requested by:  exposed by:  via InterfaceProviderSpec "service_manager:connector".

InterfaceRegistry(service_manager:connector):

  --> InterfaceRegistry is not yet bound to a pipe.

Does this helps?

No, that doesn't look like a crash, and is not a backtrace.

Ideally, you'd do:

gdb /usr/bin/krunner
...
(gdb) run
... then it crashes
(gdb) thread apply all backtrace

(then post the backtrace generated)

That didn't work, I had to do the following

$ gdb /usr/bin/krunner
GNU gdb (GDB) Fedora 7.12.1-41.fc25
...
Reading symbols from /usr/bin/krunner...Reading symbols from /usr/lib/debug/usr/bin/krunner.debug...done.
done.
(gdb) b exit
Function "exit" not defined.
Make breakpoint pending on future shared library load? (y or [n]) y
Breakpoint 1 (exit) pending.
(gdb) b _exit
Function "_exit" not defined.
Make breakpoint pending on future shared library load? (y or [n]) y
Breakpoint 2 (_exit) pending.
(gdb) b __exit
Function "__exit" not defined.
Make breakpoint pending on future shared library load? (y or [n]) y
Breakpoint 3 (__exit) pending.
(gdb) run
Starting program: /usr/bin/krunner 
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib64/libthread_db.so.1".
[New Thread 0x7fffd972a700 (LWP 22336)]
[New Thread 0x7fffd3df5700 (LWP 22370)]

Thread 1 "krunner" hit Breakpoint 1, __GI_exit (status=status@entry=0) at exit.c:105
105       __run_exit_handlers (status, &__exit_funcs, true, true);
(gdb) bt
#0  0x00007ffff3840450 in __GI_exit (status=status@entry=0) at exit.c:105
#1  0x00007ffff5f09f45 in KDBusService::KDBusService(QFlags<KDBusService::StartupOption>, QObject*) (this=<optimized out>, options=..., parent=<optimized out>) at /usr/src/debug/kdbusaddons-5.29.0/src/kdbusservice.cpp:129
#2  0x000055555555a847 in main(int, char**) (argc=<optimized out>, argv=<optimized out>)
    at /usr/src/debug/plasma-workspace-5.8.5/krunner/main.cpp:69
(gdb) thread apply all bt

Thread 3 (Thread 0x7fffd3df5700 (LWP 22370)):
#0  0x00007ffff390201d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007fffeb8c4156 in g_main_context_poll (priority=<optimized out>, n_fds=2, fds=0x7fffcc003020, timeout=<optimized out>, context=0x7fffcc000990) at gmain.c:4228
#2  0x00007fffeb8c4156 in g_main_context_iterate (context=context@entry=0x7fffcc000990, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at gmain.c:3924
#3  0x00007fffeb8c426c in g_main_context_iteration (context=0x7fffcc000990, may_block=may_block@entry=1) at gmain.c:3990
#4  0x00007ffff47086cf in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) (this=0x7fffcc0008c0, flags=...)
    at kernel/qeventdispatcher_glib.cpp:423
#5  0x00007ffff46b968a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) (this=this@entry=0x7fffd3df4c40, flags=..., 
    flags@entry=...) at kernel/qeventloop.cpp:212
#6  0x00007ffff45165e3 in QThread::exec() (this=this@entry=0x7ffff7fc2060 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at thread/qthread.cpp:507
#7  0x00007ffff7f4c739 in QDBusConnectionManager::run() (this=0x7ffff7fc2060 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at qdbusconnection.cpp:178
#8  0x00007ffff451a9ca in QThreadPrivate::start(void*) (arg=0x7ffff7fc2060 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at thread/qthread_unix.cpp:368
#9  0x00007ffff03246ca in start_thread (arg=0x7fffd3df5700) at pthread_create.c:333
#10 0x00007ffff390df7f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 2 (Thread 0x7fffd972a700 (LWP 22336)):
#0  0x00007ffff390201d in poll () at ../sysdeps/unix/syscall-template.S:84
#1  0x00007ffff2969d10 in poll (__timeout=-1, __nfds=1, __fds=0x7fffd9729b80) at /usr/include/bits/poll2.h:46
#2  0x00007ffff2969d10 in _xcb_conn_wait (c=c@entry=0x555555796490, cond=cond@entry=0x5555557964d0, vector=vector@entry=0x0, count=count@entry=0x0) at xcb_conn.c:479
#3  0x00007ffff296baa9 in xcb_wait_for_event (c=0x555555796490) at xcb_in.c:693
#4  0x00007fffdcf7fd69 in QXcbEventReader::run() (this=0x5555557a0b60) at qxcbconnection.cpp:1343
#5  0x00007ffff451a9ca in QThreadPrivate::start(void*) (arg=0x5555557a0b60) at thread/qthread_unix.cpp:368
#6  0x00007ffff03246ca in start_thread (arg=0x7fffd972a700) at pthread_create.c:333
#7  0x00007ffff390df7f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:105

Thread 1 (Thread 0x7ffff7e17940 (LWP 22250)):
#0  0x00007ffff3840450 in __GI_exit (status=status@entry=0) at exit.c:105
---Type <return> to continue, or q <return> to quit---
#1  0x00007ffff5f09f45 in KDBusService::KDBusService(QFlags<KDBusService::StartupOption>, QObject*) (this=<optimized out>, options=..., parent=<optimized out>) at /usr/src/debug/kdbusaddons-5.29.0/src/kdbusservice.cpp:129
#2  0x000055555555a847 in main(int, char**) (argc=<optimized out>, argv=<optimized out>)
    at /usr/src/debug/plasma-workspace-5.8.5/krunner/main.cpp:69

Thanks for the update. KDBusService exit()s, because it received an invalid reply. How do you start krunner? Is the session dbus working for other applications?

I forgot to close this. Somehow krunner start working again after some updates.
Thanks for all the help!