http://bugzilla.suse.com/show_bug.cgi?id=997359
http://bugzilla.suse.com/show_bug.cgi?id=997359#c7
--- Comment #7 from Cimba Li ---
Well, looks like a deadlock, everybody is waiting/polling:
(gdb) info threads
Id Target Id Frame
* 1 Thread 0x7ffff7f9a8c0 (LWP 1576) "kscreenlocker_g"
0x00007ffff3e1e0a3 in select () from /lib64/libc.so.6
2 Thread 0x7fffe64d6700 (LWP 1580) "QXcbEventReader"
0x00007ffff3e1ca1d in poll () from /lib64/libc.so.6
3 Thread 0x7fffdace3700 (LWP 1581) "QQmlThread" 0x00007ffff3e1ca1d in
poll () from /lib64/libc.so.6
4 Thread 0x7fffd3de1700 (LWP 1582) "QDBusConnection"
0x00007ffff3e1ca1d in poll () from /lib64/libc.so.6
5 Thread 0x7fffc836e700 (LWP 1584) "QSGRenderThread"
0x00007ffff2e6409f in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib64/libpthread.so.0
6 Thread 0x7fffc58cc700 (LWP 1585) "QSGRenderThread"
0x00007ffff2e6409f in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib64/libpthread.so.0
Unfortunately I can't get a lot more info, since I can't find the debuginfo
package:
Missing separate debuginfos, use: zypper install
kscreenlocker-debuginfo-5.7.4-1.1.x86_64
(gdb) thread apply all bt
Thread 6 (Thread 0x7fffc58cc700 (LWP 1585)):
#0 0x00007ffff2e6409f in pthread_cond_wait@@GLIBC_2.3.2 () at
/lib64/libpthread.so.0
#1 0x00007ffff451c18b in QWaitCondition::wait(QMutex*, unsigned long) ()
at /usr/lib64/libQt5Core.so.5
#2 0x00007ffff5dc33f5 in () at /usr/lib64/libQt5Quick.so.5
#3 0x00007ffff5dc3cea in () at /usr/lib64/libQt5Quick.so.5
#4 0x00007ffff451b2d8 in () at /usr/lib64/libQt5Core.so.5
#5 0x00007ffff2e5e474 in start_thread () at /lib64/libpthread.so.0
#6 0x00007ffff3e253ed in clone () at /lib64/libc.so.6
Thread 5 (Thread 0x7fffc836e700 (LWP 1584)):
#0 0x00007ffff2e6409f in pthread_cond_wait@@GLIBC_2.3.2 () at
/lib64/libpthread.so.0
#1 0x00007ffff451c18b in QWaitCondition::wait(QMutex*, unsigned long) ()
at /usr/lib64/libQt5Core.so.5
#2 0x00007ffff5dc33f5 in () at /usr/lib64/libQt5Quick.so.5
#3 0x00007ffff5dc3cea in () at /usr/lib64/libQt5Quick.so.5
#4 0x00007ffff451b2d8 in () at /usr/lib64/libQt5Core.so.5
#5 0x00007ffff2e5e474 in start_thread () at /lib64/libpthread.so.0
#6 0x00007ffff3e253ed in clone () at /lib64/libc.so.6
Thread 4 (Thread 0x7fffd3de1700 (LWP 1582)):
#0 0x00007ffff3e1ca1d in poll () at /lib64/libc.so.6
#1 0x00007ffff03cb036 in () at /usr/lib64/libglib-2.0.so.0
#2 0x00007ffff03cb14c in g_main_context_iteration () at
/usr/lib64/libglib-2.0.so.0
#3 0x00007ffff4748acf in
QEventDispatcherGlib::processEvents(QFlagsQEventLoop::ProcessEventsFlag) ()
at /usr/lib64/libQt5Core.so.5
#4 0x00007ffff46f076a in
QEventLoop::exec(QFlagsQEventLoop::ProcessEventsFlag) () at
/usr/lib64/libQt5Core.so.5
#5 0x00007ffff45163b3 in QThread::exec() () at /usr/lib64/libQt5Core.so.5
#6 0x00007fffee23b9b5 in () at /usr/lib64/libQt5DBus.so.5
#7 0x00007ffff451b2d8 in () at /usr/lib64/libQt5Core.so.5
#8 0x00007ffff2e5e474 in start_thread () at /lib64/libpthread.so.0
#9 0x00007ffff3e253ed in clone () at /lib64/libc.so.6
Thread 3 (Thread 0x7fffdace3700 (LWP 1581)):
#0 0x00007ffff3e1ca1d in poll () at /lib64/libc.so.6
#1 0x00007ffff03cb036 in () at /usr/lib64/libglib-2.0.so.0
#2 0x00007ffff03cb14c in g_main_context_iteration () at
/usr/lib64/libglib-2.0.so.0
#3 0x00007ffff4748acf in
QEventDispatcherGlib::processEvents(QFlagsQEventLoop::ProcessEventsFlag) ()
at /usr/lib64/libQt5Core.so.5
#4 0x00007ffff46f076a in
QEventLoop::exec(QFlagsQEventLoop::ProcessEventsFlag) () at
/usr/lib64/libQt5Core.so.5
#5 0x00007ffff45163b3 in QThread::exec() () at /usr/lib64/libQt5Core.so.5
#6 0x00007ffff591b1e5 in () at /usr/lib64/libQt5Qml.so.5
#7 0x00007ffff451b2d8 in () at /usr/lib64/libQt5Core.so.5
#8 0x00007ffff2e5e474 in start_thread () at /lib64/libpthread.so.0
#9 0x00007ffff3e253ed in clone () at /lib64/libc.so.6
Thread 2 (Thread 0x7fffe64d6700 (LWP 1580)):
#0 0x00007ffff3e1ca1d in poll () at /lib64/libc.so.6
#1 0x00007ffff3696410 in () at /usr/lib64/libxcb.so.1
#2 0x00007ffff36981a9 in xcb_wait_for_event () at /usr/lib64/libxcb.so.1
#3 0x00007fffe90747b9 in ()
#4 0x00007fffe64d5d50 in ()
#5 0x000000000065b7f0 in ()
#6 0x00007fffe64d5d90 in ()
#7 0x000000000065bb50 in ()
#8 0x00007fffffffcf4f in ()
#9 0x00007ffff451b2d8 in () at /usr/lib64/libQt5Core.so.5
Thread 1 (Thread 0x7ffff7f9a8c0 (LWP 1576)):
#0 0x00007ffff3e1e0a3 in select () at /lib64/libc.so.6
#1 0x00007fffe906f251 in ()
#2 0x000000000000017d in ()
#3 0x00007fffffffce10 in ()
#4 0x00007fffffffce20 in ()
#5 0x0000000000001388 in ()
#6 0x00000000000182a8 in ()
#7 0x00000000122ad9ed in ()
#8 0x0000000000000000 in ()
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