https://bugs.kde.org/show_bug.cgi?id=361347
--- Comment #2 from duvan suarez ---
esta es la traza inversa, espero lo puedan solucionar ;) :
Application: Okular (okular), signal: Segmentation fault
Using host libthread_db library "/lib/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fa23532b840 (LWP 1740))]
Thread 7 (Thread 0x7fa233b76700 (LWP 1741)):
#0 0x7fa2441a2afd in poll () from /lib/libc.so.6
#1 0x7fa2409daac2 in ?? () from /usr/lib/libxcb.so.1
#2 0x7fa2409dc69f in xcb_wait_for_event () from /usr/lib/libxcb.so.1
#3 0x7fa23509ac79 in ?? () from
/usr/lib/qt5/plugins/platforms/../../../libQt5XcbQpa.so.5
#4 0x7fa24481d3e9 in ?? () from /usr/lib/libQt5Core.so.5
#5 0x7fa2403b1434 in start_thread () from /lib/libpthread.so.0
#6 0x7fa2441abbad in clone () from /lib/libc.so.6
Thread 6 (Thread 0x7fa232873700 (LWP 1742)):
#0 0x7ffebb0e8cdb in clock_gettime ()
#1 0x7fa2441b8ad6 in clock_gettime () from /lib/libc.so.6
#2 0x7fa2448c6b06 in ?? () from /usr/lib/libQt5Core.so.5
#3 0x7fa244a2fa39 in QTimerInfoList::updateCurrentTime() () from
/usr/lib/libQt5Core.so.5
#4 0x7fa244a2ff45 in QTimerInfoList::timerWait(timespec&) () from
/usr/lib/libQt5Core.so.5
#5 0x7fa244a312de in ?? () from /usr/lib/libQt5Core.so.5
#6 0x7fa23e6ad88d in g_main_context_prepare () from
/usr/lib/libglib-2.0.so.0
#7 0x7fa23e6ae1d0 in ?? () from /usr/lib/libglib-2.0.so.0
#8 0x7fa23e6ae3ac in g_main_context_iteration () from
/usr/lib/libglib-2.0.so.0
#9 0x7fa244a31e3c in
QEventDispatcherGlib::processEvents(QFlags) ()
from /usr/lib/libQt5Core.so.5
#10 0x7fa2449dffea in
QEventLoop::exec(QFlags) () from
/usr/lib/libQt5Core.so.5
#11 0x7fa244818acc in QThread::exec() () from /usr/lib/libQt5Core.so.5
#12 0x7fa2479cffb5 in ?? () from /usr/lib/libQt5DBus.so.5
#13 0x7fa24481d3e9 in ?? () from /usr/lib/libQt5Core.so.5
#14 0x7fa2403b1434 in start_thread () from /lib/libpthread.so.0
#15 0x7fa2441abbad in clone () from /lib/libc.so.6
Thread 5 (Thread 0x7fa21bfff700 (LWP 1755)):
#0 0x7fa2403b707f in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib/libpthread.so.0
#1 0x7fa24481dfab in QWaitCondition::wait(QMutex*, unsigned long) () from
/usr/lib/libQt5Core.so.5
#2 0x7fa230500f37 in
ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*,
bool, bool, bool) () from /usr/lib/libKF5ThreadWeaver.so.5
#3 0x7fa230505178 in ?? () from /usr/lib/libKF5ThreadWeaver.so.5
#4 0x7fa23050008f in
ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from
/usr/lib/libKF5ThreadWeaver.so.5
#5 0x7fa2305051c2 in ?? () from /usr/lib/libKF5ThreadWeaver.so.5
#6 0x7fa23050008f in
ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from
/usr/lib/libKF5ThreadWeaver.so.5
#7 0x7fa2305051c2 in ?? () from /usr/lib/libKF5ThreadWeaver.so.5
#8 0x7fa23050008f in
ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from
/usr/lib/libKF5ThreadWeaver.so.5
#9 0x7fa2305051c2 in ?? () from /usr/lib/libKF5ThreadWeaver.so.5
#10 0x7fa23050008f in
ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from
/usr/lib/libKF5ThreadWeaver.so.5
#11 0x7fa2305051c2 in ?? () from /usr/lib/libKF5ThreadWeaver.so.5
#12 0x7fa23050008f in
ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from
/usr/lib/libKF5ThreadWeaver.so.5
#13 0x7fa2305051c2 in ?? () from /usr/lib/libKF5ThreadWeaver.so.5
#14 0x7fa23050008f in
ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from
/usr/lib/libKF5ThreadWeaver.so.5
#15 0x7fa2305051c2 in ?? () from /usr/lib/libKF5ThreadWeaver.so.5
#16 0x7fa23050008f in
ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from
/usr/lib/libKF5ThreadWeaver.so.5
#17 0x7fa230502870 in ThreadWeaver::Thread::run() () from
/usr/lib/libKF5ThreadWeaver.so.5
#18 0x7fa24481d3e9 in ?? () from /usr/lib/libQt5Core.so.5
#19 0x7fa2403b1434 in start_thread () from /lib/libpthread.so.0
#20 0x7fa2441abbad in clone () from /lib/libc.so.6
Thread 4 (Thread 0x7fa221e7a700 (LWP 1756)):
#0 0x7fa2403b707f in pthread_cond_wait@@GLIBC_2.3.2 () from
/lib/libpthread.so.0
#1 0x7fa24481dfab in QWaitCondition::wait(QMutex*, unsigned long) () from
/usr/lib/libQt5Core.so.5
#2 0x7fa230500f37 in
ThreadWeaver::Weaver::takeFirstAvailableJobOrSuspendOrWait(ThreadWeaver::Thread*,
bool, bool, bool) () from /usr/lib/libKF5ThreadWeaver.so.5
#3 0x7fa230505178 in ?? () from /usr/lib/libKF5ThreadWeaver.so.5
#4 0x7fa23050008f in
ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from
/usr/lib/libKF5ThreadWeaver.so.5
#5 0x7fa2305051c2 in ?? () from /usr/lib/libKF5ThreadWeaver.so.5
#6 0x7fa23050008f in
ThreadWeaver::Weaver::applyForWork(ThreadWeaver::Thread*, bool) () from
/usr/lib/libKF5ThreadWeaver.so.5
#7 0x7fa2305051c2 in ?? () from /usr/lib/libKF5ThreadWeaver.so.5
#