Bug 401417

Summary: Searching menu for an app then trying to manage it (right click -> manage) opens then crashes discover
Product: [Applications] Discover Reporter: Mustafa Muhammad <mustafa1024m>
Component: discoverAssignee: Aleix Pol <aleixpol>
Status: RESOLVED DUPLICATE    
Severity: crash CC: nate, tarcisiooliveira
Priority: NOR Keywords: drkonqi
Version: 5.14.3   
Target Milestone: ---   
Platform: Fedora RPMs   
OS: Linux   
Latest Commit: Version Fixed In:
Sentry Crash Report:
Attachments: New crash information added by DrKonqi

Description Mustafa Muhammad 2018-11-26 07:36:25 UTC 
Application: plasma-discover (5.14.3)

Qt Version: 5.11.1
Frameworks Version: 5.52.0
Operating System: Linux 4.19.4-300.fc29.x86_64 x86_64
Distribution: "Fedora release 29 (Twenty Nine)"

-- Information about the crash:
Trying to manage app (using discover), by right clicking it and pressing "Manage Ktorrent", causes discover to be opened, shows ktorrent 'Install' button, which is wrong, because it is already installed, there should be "Remove" and "Launch", and after a second, discover crashes.

The crash can be reproduced every time.

-- Backtrace:
Application: Discover (plasma-discover), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fc591fd8940 (LWP 7993))]

Thread 21 (Thread 0x7fc5357fa700 (LWP 8026)):
#0  0x00007fc5951d23d1 in poll () from /lib64/libc.so.6
#1  0x00007fc5926ba5a6 in ?? () from /lib64/libglib-2.0.so.0
#2  0x00007fc5926ba6d0 in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#3  0x00007fc59588182b in QEventDispatcherGlib::processEvents (this=0x7fc508000b50, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007fc59583017b in QEventLoop::exec (this=this@entry=0x7fc5357f9c60, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:140
#5  0x00007fc595698046 in QThread::exec (this=<optimized out>) at ../../include/QtCore/../../src/corelib/global/qflags.h:120
#6  0x00007fc5956a14bb in QThreadPrivate::start (arg=0x7fc580008de0) at thread/qthread_unix.cpp:367
#7  0x00007fc594df458e in start_thread () from /lib64/libpthread.so.0
#8  0x00007fc5951dd653 in clone () from /lib64/libc.so.6

Thread 20 (Thread 0x7fc5367fc700 (LWP 8025)):
#0  0x00007fc5951cdf34 in read () from /lib64/libc.so.6
#1  0x00007fc592700aa0 in ?? () from /lib64/libglib-2.0.so.0
#2  0x00007fc5926ba09b in g_main_context_check () from /lib64/libglib-2.0.so.0
#3  0x00007fc5926ba550 in ?? () from /lib64/libglib-2.0.so.0
#4  0x00007fc5926ba6d0 in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#5  0x00007fc59588182b in QEventDispatcherGlib::processEvents (this=0x7fc514000b50, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#6  0x00007fc59583017b in QEventLoop::exec (this=this@entry=0x7fc5367fbc60, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:140
#7  0x00007fc595698046 in QThread::exec (this=<optimized out>) at ../../include/QtCore/../../src/corelib/global/qflags.h:120
#8  0x00007fc5956a14bb in QThreadPrivate::start (arg=0x7fc5640eb8a0) at thread/qthread_unix.cpp:367
#9  0x00007fc594df458e in start_thread () from /lib64/libpthread.so.0
#10 0x00007fc5951dd653 in clone () from /lib64/libc.so.6

Thread 19 (Thread 0x7fc536ffd700 (LWP 8018)):
#0  0x00007fc594dfab68 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007fc5956a1a25 in QWaitConditionPrivate::wait_relative (time=30000, this=0x55cd68798ed0) at thread/qwaitcondition_unix.cpp:133
#2  QWaitConditionPrivate::wait (time=30000, this=0x55cd68798ed0) at thread/qwaitcondition_unix.cpp:141
#3  QWaitCondition::wait (this=this@entry=0x55cd6a7fb5f0, mutex=mutex@entry=0x55cd6853cfe0, time=30000) at thread/qwaitcondition_unix.cpp:215
#4  0x00007fc595699cd2 in QThreadPoolThread::run (this=0x55cd6a7fb5e0) at ../../include/QtCore/../../src/corelib/thread/qmutex.h:240
#5  0x00007fc5956a14bb in QThreadPrivate::start (arg=0x55cd6a7fb5e0) at thread/qthread_unix.cpp:367
#6  0x00007fc594df458e in start_thread () from /lib64/libpthread.so.0
#7  0x00007fc5951dd653 in clone () from /lib64/libc.so.6

Thread 18 (Thread 0x7fc5377fe700 (LWP 8017)):
#0  0x00007fc594dfab68 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007fc5956a1a25 in QWaitConditionPrivate::wait_relative (time=30000, this=0x55cd6aa01ae0) at thread/qwaitcondition_unix.cpp:133
#2  QWaitConditionPrivate::wait (time=30000, this=0x55cd6aa01ae0) at thread/qwaitcondition_unix.cpp:141
#3  QWaitCondition::wait (this=this@entry=0x55cd68ae6b40, mutex=mutex@entry=0x55cd6853cfe0, time=30000) at thread/qwaitcondition_unix.cpp:215
#4  0x00007fc595699cd2 in QThreadPoolThread::run (this=0x55cd68ae6b30) at ../../include/QtCore/../../src/corelib/thread/qmutex.h:240
#5  0x00007fc5956a14bb in QThreadPrivate::start (arg=0x55cd68ae6b30) at thread/qthread_unix.cpp:367
#6  0x00007fc594df458e in start_thread () from /lib64/libpthread.so.0
#7  0x00007fc5951dd653 in clone () from /lib64/libc.so.6

Thread 17 (Thread 0x7fc549ffb700 (LWP 8013)):
#0  0x00007fc594dfab68 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007fc5956a1a25 in QWaitConditionPrivate::wait_relative (time=30000, this=0x55cd6a8df4e0) at thread/qwaitcondition_unix.cpp:133
#2  QWaitConditionPrivate::wait (time=30000, this=0x55cd6a8df4e0) at thread/qwaitcondition_unix.cpp:141
#3  QWaitCondition::wait (this=this@entry=0x55cd68a0b890, mutex=mutex@entry=0x55cd6853cfe0, time=30000) at thread/qwaitcondition_unix.cpp:215
#4  0x00007fc595699cd2 in QThreadPoolThread::run (this=0x55cd68a0b880) at ../../include/QtCore/../../src/corelib/thread/qmutex.h:240
#5  0x00007fc5956a14bb in QThreadPrivate::start (arg=0x55cd68a0b880) at thread/qthread_unix.cpp:367
#6  0x00007fc594df458e in start_thread () from /lib64/libpthread.so.0
#7  0x00007fc5951dd653 in clone () from /lib64/libc.so.6

Thread 16 (Thread 0x7fc54affd700 (LWP 8011)):
#0  0x00007fc594dfab68 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007fc5956a1a25 in QWaitConditionPrivate::wait_relative (time=30000, this=0x55cd6a84a3b0) at thread/qwaitcondition_unix.cpp:133
#2  QWaitConditionPrivate::wait (time=30000, this=0x55cd6a84a3b0) at thread/qwaitcondition_unix.cpp:141
#3  QWaitCondition::wait (this=this@entry=0x55cd6a7fe920, mutex=mutex@entry=0x55cd6853cfe0, time=30000) at thread/qwaitcondition_unix.cpp:215
#4  0x00007fc595699cd2 in QThreadPoolThread::run (this=0x55cd6a7fe910) at ../../include/QtCore/../../src/corelib/thread/qmutex.h:240
#5  0x00007fc5956a14bb in QThreadPrivate::start (arg=0x55cd6a7fe910) at thread/qthread_unix.cpp:367
#6  0x00007fc594df458e in start_thread () from /lib64/libpthread.so.0
#7  0x00007fc5951dd653 in clone () from /lib64/libc.so.6

Thread 15 (Thread 0x7fc54bfff700 (LWP 8010)):
#0  0x00007fc594dfab68 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007fc5956a1a25 in QWaitConditionPrivate::wait_relative (time=30000, this=0x55cd68a12dd0) at thread/qwaitcondition_unix.cpp:133
#2  QWaitConditionPrivate::wait (time=30000, this=0x55cd68a12dd0) at thread/qwaitcondition_unix.cpp:141
#3  QWaitCondition::wait (this=this@entry=0x55cd6abdf340, mutex=mutex@entry=0x55cd6853cfe0, time=30000) at thread/qwaitcondition_unix.cpp:215
#4  0x00007fc595699cd2 in QThreadPoolThread::run (this=0x55cd6abdf330) at ../../include/QtCore/../../src/corelib/thread/qmutex.h:240
#5  0x00007fc5956a14bb in QThreadPrivate::start (arg=0x55cd6abdf330) at thread/qthread_unix.cpp:367
#6  0x00007fc594df458e in start_thread () from /lib64/libpthread.so.0
#7  0x00007fc5951dd653 in clone () from /lib64/libc.so.6

Thread 14 (Thread 0x7fc54b7fe700 (LWP 8009)):
#0  0x00007fc5951d23d1 in poll () from /lib64/libc.so.6
#1  0x00007fc5926ba5a6 in ?? () from /lib64/libglib-2.0.so.0
#2  0x00007fc5926ba6d0 in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#3  0x00007fc5926ba721 in ?? () from /lib64/libglib-2.0.so.0
#4  0x00007fc5926e348a in ?? () from /lib64/libglib-2.0.so.0
#5  0x00007fc594df458e in start_thread () from /lib64/libpthread.so.0
#6  0x00007fc5951dd653 in clone () from /lib64/libc.so.6

Thread 13 (Thread 0x7fc558e48700 (LWP 8008)):
#0  0x00007fc594dfab68 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007fc5956a1a25 in QWaitConditionPrivate::wait_relative (time=30000, this=0x55cd68807f50) at thread/qwaitcondition_unix.cpp:133
#2  QWaitConditionPrivate::wait (time=30000, this=0x55cd68807f50) at thread/qwaitcondition_unix.cpp:141
#3  QWaitCondition::wait (this=this@entry=0x55cd6acf1950, mutex=mutex@entry=0x55cd6853cfe0, time=30000) at thread/qwaitcondition_unix.cpp:215
#4  0x00007fc595699cd2 in QThreadPoolThread::run (this=0x55cd6acf1940) at ../../include/QtCore/../../src/corelib/thread/qmutex.h:240
#5  0x00007fc5956a14bb in QThreadPrivate::start (arg=0x55cd6acf1940) at thread/qthread_unix.cpp:367
#6  0x00007fc594df458e in start_thread () from /lib64/libpthread.so.0
#7  0x00007fc5951dd653 in clone () from /lib64/libc.so.6

Thread 12 (Thread 0x7fc559649700 (LWP 8007)):
#0  0x00007fc594dfab68 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007fc5956a1a25 in QWaitConditionPrivate::wait_relative (time=30000, this=0x55cd6addfa30) at thread/qwaitcondition_unix.cpp:133
#2  QWaitConditionPrivate::wait (time=30000, this=0x55cd6addfa30) at thread/qwaitcondition_unix.cpp:141
#3  QWaitCondition::wait (this=this@entry=0x55cd6abddc80, mutex=mutex@entry=0x55cd6853cfe0, time=30000) at thread/qwaitcondition_unix.cpp:215
#4  0x00007fc595699cd2 in QThreadPoolThread::run (this=0x55cd6abddc70) at ../../include/QtCore/../../src/corelib/thread/qmutex.h:240
#5  0x00007fc5956a14bb in QThreadPrivate::start (arg=0x55cd6abddc70) at thread/qthread_unix.cpp:367
#6  0x00007fc594df458e in start_thread () from /lib64/libpthread.so.0
#7  0x00007fc5951dd653 in clone () from /lib64/libc.so.6

Thread 11 (Thread 0x7fc55a6d5700 (LWP 8004)):
#0  0x00007fc5951d23d1 in poll () from /lib64/libc.so.6
#1  0x00007fc5926ba5a6 in ?? () from /lib64/libglib-2.0.so.0
#2  0x00007fc5926ba6d0 in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#3  0x00007fc59588182b in QEventDispatcherGlib::processEvents (this=0x7fc54c000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007fc59583017b in QEventLoop::exec (this=this@entry=0x7fc55a6d4c60, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:140
#5  0x00007fc595698046 in QThread::exec (this=<optimized out>) at ../../include/QtCore/../../src/corelib/global/qflags.h:120
#6  0x00007fc5956a14bb in QThreadPrivate::start (arg=0x55cd6801dfe0) at thread/qthread_unix.cpp:367
#7  0x00007fc594df458e in start_thread () from /lib64/libpthread.so.0
#8  0x00007fc5951dd653 in clone () from /lib64/libc.so.6

Thread 10 (Thread 0x7fc55b060700 (LWP 8002)):
#0  0x00007fc594dfab68 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007fc5956a1a25 in QWaitConditionPrivate::wait_relative (time=30000, this=0x55cd68794240) at thread/qwaitcondition_unix.cpp:133
#2  QWaitConditionPrivate::wait (time=30000, this=0x55cd68794240) at thread/qwaitcondition_unix.cpp:141
#3  QWaitCondition::wait (this=this@entry=0x55cd684f1ca0, mutex=mutex@entry=0x55cd6853cfe0, time=30000) at thread/qwaitcondition_unix.cpp:215
#4  0x00007fc595699cd2 in QThreadPoolThread::run (this=0x55cd684f1c90) at ../../include/QtCore/../../src/corelib/thread/qmutex.h:240
#5  0x00007fc5956a14bb in QThreadPrivate::start (arg=0x55cd684f1c90) at thread/qthread_unix.cpp:367
#6  0x00007fc594df458e in start_thread () from /lib64/libpthread.so.0
#7  0x00007fc5951dd653 in clone () from /lib64/libc.so.6

Thread 9 (Thread 0x7fc574820700 (LWP 8001)):
#0  0x00007fc594dfab68 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007fc5956a1a25 in QWaitConditionPrivate::wait_relative (time=30000, this=0x7fc55c005fa0) at thread/qwaitcondition_unix.cpp:133
#2  QWaitConditionPrivate::wait (time=30000, this=0x7fc55c005fa0) at thread/qwaitcondition_unix.cpp:141
#3  QWaitCondition::wait (this=this@entry=0x7fc55c005d60, mutex=mutex@entry=0x7fc55c003fb0, time=30000) at thread/qwaitcondition_unix.cpp:215
#4  0x00007fc595699cd2 in QThreadPoolThread::run (this=0x7fc55c005d50) at ../../include/QtCore/../../src/corelib/thread/qmutex.h:240
#5  0x00007fc5956a14bb in QThreadPrivate::start (arg=0x7fc55c005d50) at thread/qthread_unix.cpp:367
#6  0x00007fc594df458e in start_thread () from /lib64/libpthread.so.0
#7  0x00007fc5951dd653 in clone () from /lib64/libc.so.6

Thread 8 (Thread 0x7fc575021700 (LWP 8000)):
#0  0x00007fc5951cdf34 in read () from /lib64/libc.so.6
#1  0x00007fc592700aa0 in ?? () from /lib64/libglib-2.0.so.0
#2  0x00007fc5926ba09b in g_main_context_check () from /lib64/libglib-2.0.so.0
#3  0x00007fc5926ba550 in ?? () from /lib64/libglib-2.0.so.0
#4  0x00007fc5926ba6d0 in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#5  0x00007fc59588182b in QEventDispatcherGlib::processEvents (this=0x7fc55c000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#6  0x00007fc59583017b in QEventLoop::exec (this=this@entry=0x7fc575020c60, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:140
#7  0x00007fc595698046 in QThread::exec (this=<optimized out>) at ../../include/QtCore/../../src/corelib/global/qflags.h:120
#8  0x00007fc5956a14bb in QThreadPrivate::start (arg=0x55cd683ea0e0) at thread/qthread_unix.cpp:367
#9  0x00007fc594df458e in start_thread () from /lib64/libpthread.so.0
#10 0x00007fc5951dd653 in clone () from /lib64/libc.so.6

Thread 7 (Thread 0x7fc5758a0700 (LWP 7999)):
#0  0x00007fc592701ee8 in g_mutex_unlock () from /lib64/libglib-2.0.so.0
#1  0x00007fc5926b9adc in g_main_context_prepare () from /lib64/libglib-2.0.so.0
#2  0x00007fc5926ba4db in ?? () from /lib64/libglib-2.0.so.0
#3  0x00007fc5926ba6d0 in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#4  0x00007fc59588182b in QEventDispatcherGlib::processEvents (this=0x7fc568000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#5  0x00007fc59583017b in QEventLoop::exec (this=this@entry=0x7fc57589fc60, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:140
#6  0x00007fc595698046 in QThread::exec (this=<optimized out>) at ../../include/QtCore/../../src/corelib/global/qflags.h:120
#7  0x00007fc5956a14bb in QThreadPrivate::start (arg=0x55cd69512640) at thread/qthread_unix.cpp:367
#8  0x00007fc594df458e in start_thread () from /lib64/libpthread.so.0
#9  0x00007fc5951dd653 in clone () from /lib64/libc.so.6

Thread 6 (Thread 0x7fc5765e9700 (LWP 7998)):
#0  0x00007fc592701ee8 in g_mutex_unlock () from /lib64/libglib-2.0.so.0
#1  0x00007fc5926ba6da in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#2  0x00007fc59588182b in QEventDispatcherGlib::processEvents (this=0x7fc564000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#3  0x00007fc59583017b in QEventLoop::exec (this=this@entry=0x7fc5765e8c20, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:140
#4  0x00007fc595698046 in QThread::exec (this=this@entry=0x55cd694137c0) at ../../include/QtCore/../../src/corelib/global/qflags.h:120
#5  0x00007fc59755b78a in QQuickPixmapReader::run (this=0x55cd694137c0) at util/qquickpixmapcache.cpp:934
#6  0x00007fc5956a14bb in QThreadPrivate::start (arg=0x55cd694137c0) at thread/qthread_unix.cpp:367
#7  0x00007fc594df458e in start_thread () from /lib64/libpthread.so.0
#8  0x00007fc5951dd653 in clone () from /lib64/libc.so.6

Thread 5 (Thread 0x7fc5777fa700 (LWP 7997)):
#0  0x00007fc594dfa77c in pthread_cond_wait@@GLIBC_2.3.2 () from /lib64/libpthread.so.0
#1  0x00007fc57c8dc8c3 in ?? () from /usr/lib64/dri/i965_dri.so
#2  0x00007fc57c8dc61b in ?? () from /usr/lib64/dri/i965_dri.so
#3  0x00007fc594df458e in start_thread () from /lib64/libpthread.so.0
#4  0x00007fc5951dd653 in clone () from /lib64/libc.so.6

Thread 4 (Thread 0x7fc57e986700 (LWP 7996)):
#0  0x00007fc5951cdf34 in read () from /lib64/libc.so.6
#1  0x00007fc592700aa0 in ?? () from /lib64/libglib-2.0.so.0
#2  0x00007fc5926ba09b in g_main_context_check () from /lib64/libglib-2.0.so.0
#3  0x00007fc5926ba550 in ?? () from /lib64/libglib-2.0.so.0
#4  0x00007fc5926ba6d0 in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#5  0x00007fc59588182b in QEventDispatcherGlib::processEvents (this=0x7fc570000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#6  0x00007fc59583017b in QEventLoop::exec (this=this@entry=0x7fc57e985c40, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:140
#7  0x00007fc595698046 in QThread::exec (this=this@entry=0x55cd67c15970) at ../../include/QtCore/../../src/corelib/global/qflags.h:120
#8  0x00007fc595fc4209 in QQmlThreadPrivate::run (this=0x55cd67c15970) at qml/ftw/qqmlthread.cpp:148
#9  0x00007fc5956a14bb in QThreadPrivate::start (arg=0x55cd67c15970) at thread/qthread_unix.cpp:367
#10 0x00007fc594df458e in start_thread () from /lib64/libpthread.so.0
#11 0x00007fc5951dd653 in clone () from /lib64/libc.so.6

Thread 3 (Thread 0x7fc57fb97700 (LWP 7995)):
#0  0x00007fc5926b73f9 in ?? () from /lib64/libglib-2.0.so.0
#1  0x00007fc5926b9ed2 in g_main_context_check () from /lib64/libglib-2.0.so.0
#2  0x00007fc5926ba550 in ?? () from /lib64/libglib-2.0.so.0
#3  0x00007fc5926ba6d0 in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#4  0x00007fc59588182b in QEventDispatcherGlib::processEvents (this=0x7fc578000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#5  0x00007fc59583017b in QEventLoop::exec (this=this@entry=0x7fc57fb96c30, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:140
#6  0x00007fc595698046 in QThread::exec (this=this@entry=0x7fc596d22060 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at ../../include/QtCore/../../src/corelib/global/qflags.h:120
#7  0x00007fc596ca6f89 in QDBusConnectionManager::run (this=0x7fc596d22060 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at qdbusconnection.cpp:178
#8  0x00007fc5956a14bb in QThreadPrivate::start (arg=0x7fc596d22060 <(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at thread/qthread_unix.cpp:367
#9  0x00007fc594df458e in start_thread () from /lib64/libpthread.so.0
#10 0x00007fc5951dd653 in clone () from /lib64/libc.so.6

Thread 2 (Thread 0x7fc584d11700 (LWP 7994)):
#0  0x00007fc5951d23d1 in poll () from /lib64/libc.so.6
#1  0x00007fc5925f539f in ?? () from /lib64/libxcb.so.1
#2  0x00007fc5925f701a in xcb_wait_for_event () from /lib64/libxcb.so.1
#3  0x00007fc584ee0da9 in QXcbEventReader::run (this=0x55cd67b12ce0) at qxcbconnection.h:409
#4  0x00007fc5956a14bb in QThreadPrivate::start (arg=0x55cd67b12ce0) at thread/qthread_unix.cpp:367
#5  0x00007fc594df458e in start_thread () from /lib64/libpthread.so.0
#6  0x00007fc5951dd653 in clone () from /lib64/libc.so.6

Thread 1 (Thread 0x7fc591fd8940 (LWP 7993)):
[KCrash Handler]
#6  0x00007fc59583a7ab in QMetaObject::cast (this=this@entry=0x7fc5961145a0 <QQmlDelegateModelItem::staticMetaObject>, obj=0x55cd68107cf0) at kernel/qmetaobject.cpp:366
#7  0x00007fc59583a7e9 in QMetaObject::cast (this=this@entry=0x7fc5961145a0 <QQmlDelegateModelItem::staticMetaObject>, obj=<optimized out>) at kernel/qmetaobject.cpp:355
#8  0x00007fc596000b34 in qobject_cast<QQmlDelegateModelItem*> (object=<optimized out>) at /usr/include/qt5/QtCore/qobject.h:499
#9  QQmlDelegateModelItem::dataForObject (object=object@entry=0x55cd6cfaeb30) at types/qqmldelegatemodel.cpp:1986
#10 0x00007fc596007cb2 in QQmlDelegateModelPrivate::release (this=0x55cd6d1ba410, object=0x55cd6cfaeb30) at types/qqmldelegatemodel.cpp:543
#11 0x00007fc596007d56 in QQmlDelegateModelPrivate::release (object=<optimized out>, this=<optimized out>) at types/qqmldelegatemodel.cpp:567
#12 QQmlDelegateModel::release (this=<optimized out>, item=<optimized out>) at types/qqmldelegatemodel.cpp:567
#13 0x00007fc595ffc659 in QQmlInstantiatorPrivate::clear (this=this@entry=0x55cd6d1b4390) at /usr/include/c++/8/bits/atomic_base.h:390
#14 0x00007fc595ffcae6 in QQmlInstantiatorPrivate::regenerate (this=0x55cd6d1b4390) at types/qqmlinstantiator.cpp:106
#15 0x00007fc595ffcdf0 in QQmlInstantiator::setModel (this=0x55cd6d1b42d0, v=...) at types/qqmlinstantiator.cpp:446
#16 0x00007fc595ffe025 in QQmlInstantiator::qt_static_metacall (_o=<optimized out>, _c=<optimized out>, _id=<optimized out>, _a=<optimized out>) at .moc/moc_qqmlinstantiator_p.cpp:246
#17 0x00007fc595f2ada2 in QQmlPropertyData::writeProperty (this=this@entry=0x7fc570223128, target=target@entry=0x55cd6d1b42d0, value=value@entry=0x7fffee7a66c0, flags=flags@entry=...) at ../../include/QtQml/5.11.1/QtQml/private/../../../../../src/qml/qml/qqmlpropertycache_p.h:346
#18 0x00007fc595f28023 in QQmlPropertyPrivate::write (object=<optimized out>, property=..., value=..., context=<optimized out>, flags=...) at qml/qqmlproperty.cpp:1270
#19 0x00007fc595f2925c in QQmlPropertyPrivate::writeValueProperty (object=<optimized out>, core=..., valueTypeData=..., value=..., context=<optimized out>, flags=..., flags@entry=...) at qml/qqmlproperty.cpp:1187
#20 0x00007fc595fab5b4 in QQmlBinding::slowWrite (this=this@entry=0x55cd6d1b4ab0, core=..., valueTypeData=..., result=..., isUndefined=isUndefined@entry=false, flags=..., flags@entry=...) at ../../include/QtQml/5.11.1/QtQml/private/../../../../../src/qml/qml/ftw/qflagpointer_p.h:228
#21 0x00007fc595fac700 in GenericBinding<0>::write (this=0x55cd6d1b4ab0, result=..., isUndefined=<optimized out>, flags=...) at ../../include/QtQml/5.11.1/QtQml/private/../../../../../src/qml/jsruntime/qv4value_p.h:295
#22 0x00007fc595fadd8c in QQmlNonbindingBinding::doUpdate (this=0x55cd6d1b4ab0, watcher=..., flags=..., scope=...) at ../../include/QtQml/5.11.1/QtQml/private/../../../../../src/qml/jsruntime/qv4scopedvalue_p.h:201
#23 0x00007fc595faa263 in QQmlBinding::update (this=0x55cd6d1b4ab0, flags=...) at qml/qqmlbinding.cpp:185
#24 0x00007fc595f80c83 in QQmlNotifier::emitNotify (endpoint=<optimized out>, a=a@entry=0x0) at qml/qqmlnotifier.cpp:106
#25 0x00007fc595f185c8 in QQmlData::signalEmitted (object=0x55cd6938d7e0, index=16, a=0x0) at qml/qqmlengine.cpp:861
#26 0x00007fc595858e43 in QMetaObject::activate (sender=0x55cd6938d7e0, signalOffset=<optimized out>, local_signal_index=<optimized out>, argv=0x0) at kernel/qobject.h:121
#27 0x00007fc595f80c83 in QQmlNotifier::emitNotify (endpoint=<optimized out>, a=a@entry=0x0) at qml/qqmlnotifier.cpp:106
#28 0x00007fc595f185c8 in QQmlData::signalEmitted (object=0x55cd6938d7e0, index=11, a=0x0) at qml/qqmlengine.cpp:861
#29 0x00007fc595858e43 in QMetaObject::activate (sender=0x55cd6938d7e0, signalOffset=<optimized out>, local_signal_index=<optimized out>, argv=0x0) at kernel/qobject.h:121
#30 0x00007fc595faffc6 in QV4::PropertyListPrototype::method_push (b=<optimized out>, thisObject=<optimized out>, argv=<optimized out>, argc=<optimized out>) at qml/qqmllistwrapper_p.h:87
#31 0x00007fc595ef6f65 in QV4::FunctionObject::call (argc=1, argv=0x7fc57dd473a0, thisObject=0x7fc57dd473b8, this=<optimized out>) at jsruntime/qv4functionobject_p.h:141
#32 QV4::Runtime::method_callProperty (engine=0x55cd67c00970, base=0x7fc57dd473b8, nameIndex=203, argv=0x7fc57dd473a0, argc=1) at jsruntime/qv4runtime.cpp:1062
#33 0x00007fc595eea29a in QV4::Moth::VME::exec (fo=0x55cd67c00970, thisObject=0x7fc596104480 <QV4::Moth::VME::exec(QV4::FunctionObject const*, QV4::Value const*, QV4::Value const*, int)::jumpTable>, argv=0x7fc57d937b00, argc=1482939863) at jsruntime/qv4vme_moth.cpp:800
#34 0x00007fc595fa41af in QV4::Moth::VME::exec (context=<optimized out>, argc=<optimized out>, argv=0x7fc57dd47360, thisObject=<optimized out>, v4Function=0x55cd68bf1e20) at ../../include/QtQml/5.11.1/QtQml/private/../../../../../src/qml/jsruntime/qv4vme_moth_p.h:72
#35 QV4::Function::call (context=<optimized out>, argc=<optimized out>, argv=0x7fc57dd47360, thisObject=<optimized out>, this=0x55cd68bf1e20) at ../../include/QtQml/5.11.1/QtQml/private/../../../../../src/qml/jsruntime/qv4function_p.h:72
#36 QQmlJavaScriptExpression::evaluate (this=this@entry=0x55cd6935bf40, callData=callData@entry=0x7fc57dd47338, isUndefined=isUndefined@entry=0x0) at qml/qqmljavascriptexpression.cpp:217
#37 0x00007fc595f35837 in QQmlBoundSignalExpression::evaluate (this=<optimized out>, a=0x7fffee7abcb0) at ../../include/QtQml/5.11.1/QtQml/private/../../../../../src/qml/jsruntime/qv4jscall_p.h:94
#38 0x00007fc595f36a0b in QQmlBoundSignal_callback (e=0x55cd693a9610, a=0x7fffee7abcb0) at ../../include/QtQml/5.11.1/QtQml/private/../../../../../src/qml/qml/qqmlboundsignalexpressionpointer_p.h:69
#39 0x00007fc595f80c83 in QQmlNotifier::emitNotify (endpoint=<optimized out>, a=a@entry=0x7fffee7abcb0) at qml/qqmlnotifier.cpp:106
#40 0x00007fc595f185c8 in QQmlData::signalEmitted (object=0x55cd69363f00, index=9, a=0x7fffee7abcb0) at qml/qqmlengine.cpp:861
#41 0x00007fc595858e43 in QMetaObject::activate (sender=0x55cd69363f00, signalOffset=<optimized out>, local_signal_index=<optimized out>, argv=0x7fffee7abcb0) at kernel/qobject.h:121
#42 0x00007fc595ffc97a in QQmlInstantiator::objectAdded (_t2=<optimized out>, _t1=<optimized out>, this=<optimized out>) at .moc/moc_qqmlinstantiator_p.cpp:352
#43 QQmlInstantiatorPrivate::_q_createdItem (this=0x55cd69363fc0, idx=0, item=0x55cd682649b0) at types/qqmlinstantiator.cpp:143
#44 0x00007fc595ffddc6 in QQmlInstantiator::qt_static_metacall (_o=<optimized out>, _c=<optimized out>, _id=<optimized out>, _a=<optimized out>) at /usr/include/qt5/QtCore/qglobal.h:1038
#45 0x00007fc5958593ee in QMetaObject::activate (sender=0x55cd6d032320, signalOffset=<optimized out>, local_signal_index=<optimized out>, argv=<optimized out>) at kernel/qobject.cpp:3771
#46 0x00007fc595ff4121 in QQmlInstanceModel::createdItem (this=<optimized out>, _t1=<optimized out>, _t2=<optimized out>) at .moc/moc_qqmlobjectmodel_p.cpp:228
#47 0x00007fc5960083cd in QQmlDelegateModelPrivate::emitCreatedItem (item=<optimized out>, incubationTask=0x55cd6e27c730, this=0x55cd6d032350) at types/qqmldelegatemodel_p_p.h:267
#48 QQmlDelegateModelPrivate::incubatorStatusChanged (this=0x55cd6d032350, incubationTask=0x55cd6e27c730, status=QQmlIncubator::Ready) at types/qqmldelegatemodel.cpp:892
#49 0x00007fc595f3105f in QQmlIncubatorPrivate::changeStatus (s=<optimized out>, this=0x7fc55c05b890) at qml/qqmlincubator.cpp:692
#50 QQmlIncubatorPrivate::incubate (this=0x7fc55c05b890, i=...) at qml/qqmlincubator.cpp:364
#51 0x00007fc595f31507 in QQmlEnginePrivate::incubate (this=0x55cd67bef790, i=..., forContext=forContext@entry=0x55cd691f2d00) at qml/qqmlincubator.cpp:89
#52 0x00007fc595f2c5f5 in QQmlComponentPrivate::incubateObject (this=this@entry=0x55cd693640b0, incubationTask=<optimized out>, component=<optimized out>, engine=<optimized out>, context=context@entry=0x7fc55c19ef00, forContext=forContext@entry=0x55cd691f2d00) at qml/qqmlcomponent.cpp:1089
#53 0x00007fc5960073b9 in QQmlDelegateModelPrivate::object (this=0x55cd6d032350, group=QQmlListCompositor::Default, index=0, incubationMode=<optimized out>) at /usr/include/c++/8/bits/atomic_base.h:390
#54 0x00007fc5960074e5 in QQmlDelegateModel::object (this=<optimized out>, index=0, incubationMode=QQmlIncubator::AsynchronousIfNested) at types/qqmldelegatemodel.cpp:1039
#55 0x00007fc595ffd85a in QQmlInstantiatorPrivate::modelObject (async=<optimized out>, index=0, this=0x55cd69363fc0) at types/qqmlinstantiator.cpp:92
#56 QQmlInstantiatorPrivate::_q_modelUpdated (this=0x55cd69363fc0, changeSet=..., reset=<optimized out>) at types/qqmlinstantiator.cpp:193
#57 0x00007fc595ffdde4 in QQmlInstantiator::qt_static_metacall (_o=<optimized out>, _c=<optimized out>, _id=<optimized out>, _a=<optimized out>) at /usr/include/qt5/QtCore/qglobal.h:1038
#58 0x00007fc5958593ee in QMetaObject::activate (sender=0x55cd6d032320, signalOffset=<optimized out>, local_signal_index=<optimized out>, argv=<optimized out>) at kernel/qobject.cpp:3771
#59 0x00007fc595ff40aa in QQmlInstanceModel::modelUpdated (this=this@entry=0x55cd6d032320, _t1=..., _t2=<optimized out>) at .moc/moc_qqmlobjectmodel_p.cpp:221
#60 0x00007fc595fff0ac in QQmlDelegateModelPrivate::emitModelUpdated (this=<optimized out>, changeSet=..., reset=<optimized out>) at types/qqmldelegatemodel.cpp:1475
#61 0x00007fc596004d35 in QQmlDelegateModelGroupPrivate::emitModelUpdated (this=0x55cd6d032600, reset=reset@entry=false) at types/qqmldelegatemodel.cpp:2265
#62 0x00007fc596004ea8 in QQmlDelegateModelPrivate::emitChanges (this=0x55cd6d032350) at /usr/include/qt5/QtCore/qglobal.h:1038
#63 0x00007fc596005eb9 in QQmlDelegateModel::_q_itemsInserted (this=<optimized out>, index=0, count=1) at types/qqmldelegatemodel.cpp:1276
#64 0x00007fc59600bef5 in QQmlDelegateModel::qt_static_metacall (_o=_o@entry=0x55cd6d032320, _c=_c@entry=QMetaObject::InvokeMetaMethod, _id=_id@entry=8, _a=_a@entry=0x7fffee7ac760) at .moc/moc_qqmldelegatemodel_p.cpp:198
#65 0x00007fc59600c263 in QQmlDelegateModel::qt_metacall (this=0x55cd6d032320, _c=QMetaObject::InvokeMetaMethod, _id=8, _a=0x7fffee7ac760) at .moc/moc_qqmldelegatemodel_p.cpp:330
#66 0x00007fc595859497 in QMetaObject::activate (sender=0x55cd6cdb7150, signalOffset=<optimized out>, local_signal_index=<optimized out>, argv=<optimized out>) at kernel/qobject.cpp:3786
#67 0x00007fc5957ecda2 in QAbstractItemModel::rowsInserted (this=this@entry=0x55cd6cdb7150, _t1=..., _t2=<optimized out>, _t3=<optimized out>, _t4=...) at .moc/moc_qabstractitemmodel.cpp:587
#68 0x00007fc5957f43ed in QAbstractItemModel::endInsertRows (this=this@entry=0x55cd6cdb7150) at itemmodels/qabstractitemmodel.cpp:2733
#69 0x00007fc5973e11cd in ResourcesProxyModel::sortedInsertion (this=this@entry=0x55cd6cdb7150, _res=...) at /usr/src/debug/plasma-discover-5.14.3-1.fc29.x86_64/libdiscover/resources/ResourcesProxyModel.cpp:484
#70 0x00007fc5973e2776 in ResourcesProxyModel::addResources (this=0x55cd6cdb7150, _res=...) at /usr/src/debug/plasma-discover-5.14.3-1.fc29.x86_64/libdiscover/resources/ResourcesProxyModel.cpp:189
#71 0x00007fc595859513 in QtPrivate::QSlotObjectBase::call (a=0x7fffee7ac990, r=0x55cd6cdb7150, this=0x55cd6d031320) at ../../include/QtCore/../../src/corelib/kernel/qobjectdefs_impl.h:376
#72 QMetaObject::activate (sender=0x55cd6df98c10, signalOffset=<optimized out>, local_signal_index=<optimized out>, argv=<optimized out>) at kernel/qobject.cpp:3754
#73 0x00007fc5973fd746 in ResultsStream::resourcesFound (this=this@entry=0x55cd6df98c10, _t1=...) at /usr/src/debug/plasma-discover-5.14.3-1.fc29.x86_64/x86_64-redhat-linux-gnu/libdiscover/DiscoverCommon_autogen/3YJK5W5UP7/moc_AbstractResourcesBackend.cpp:141
#74 0x00007fc5973daf1c in AggregatedResultsStream::emitResults (this=this@entry=0x55cd6df98c10) at /usr/src/debug/plasma-discover-5.14.3-1.fc29.x86_64/libdiscover/resources/ResourcesModel.cpp:306
#75 0x00007fc5973daf59 in AggregatedResultsStream::clear (this=0x55cd6df98c10) at /usr/src/debug/plasma-discover-5.14.3-1.fc29.x86_64/libdiscover/resources/ResourcesModel.cpp:322
#76 AggregatedResultsStream::clear (this=0x55cd6df98c10) at /usr/src/debug/plasma-discover-5.14.3-1.fc29.x86_64/libdiscover/resources/ResourcesModel.cpp:319
#77 0x00007fc5973dc657 in AggregatedResultsStream::destruction (this=0x55cd6df98c10, obj=<optimized out>) at /usr/src/debug/plasma-discover-5.14.3-1.fc29.x86_64/libdiscover/resources/ResourcesModel.cpp:316
#78 0x00007fc595859513 in QtPrivate::QSlotObjectBase::call (a=0x7fffee7acb00, r=0x55cd6df98c10, this=0x55cd6ddb6ab0) at ../../include/QtCore/../../src/corelib/kernel/qobjectdefs_impl.h:376
#79 QMetaObject::activate (sender=0x55cd6d4687d0, signalOffset=<optimized out>, local_signal_index=<optimized out>, argv=<optimized out>) at kernel/qobject.cpp:3754
#80 0x00007fc595859b23 in QObject::destroyed (this=this@entry=0x55cd6d4687d0, _t1=<optimized out>, _t1@entry=0x55cd6d4687d0) at .moc/moc_qobject.cpp:214
#81 0x00007fc59586080f in QObject::~QObject (this=<optimized out>, __in_chrg=<optimized out>) at kernel/qobject.cpp:904
#82 0x00007fc5973ec0bd in ResultsStream::~ResultsStream (this=0x55cd6d4687d0, __in_chrg=<optimized out>) at /usr/src/debug/plasma-discover-5.14.3-1.fc29.x86_64/libdiscover/resources/AbstractResourcesBackend.cpp:63
#83 0x00007fc59585a118 in QObject::event (this=0x55cd6d4687d0, e=<optimized out>) at kernel/qobject.cpp:1242
#84 0x00007fc5967882a5 in QApplicationPrivate::notify_helper (this=this@entry=0x55cd67af7570, receiver=receiver@entry=0x55cd6d4687d0, e=e@entry=0x55cd6d753600) at kernel/qapplication.cpp:3727
#85 0x00007fc59678f9c0 in QApplication::notify (this=0x7fffee7ad200, receiver=0x55cd6d4687d0, e=0x55cd6d753600) at kernel/qapplication.cpp:3486
#86 0x00007fc595831236 in QCoreApplication::notifyInternal2 (receiver=0x55cd6d4687d0, event=0x55cd6d753600) at kernel/qcoreapplication.cpp:1048
#87 0x00007fc59583440b in QCoreApplication::sendEvent (event=0x55cd6d753600, receiver=<optimized out>) at kernel/qcoreapplication.h:234
#88 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x55cd67af6f80) at kernel/qcoreapplication.cpp:1745
#89 0x00007fc595881a87 in postEventSourceDispatch (s=0x55cd67ba6a90) at kernel/qeventdispatcher_glib.cpp:276
#90 0x00007fc5926ba26d in g_main_context_dispatch () from /lib64/libglib-2.0.so.0
#91 0x00007fc5926ba638 in ?? () from /lib64/libglib-2.0.so.0
#92 0x00007fc5926ba6d0 in g_main_context_iteration () from /lib64/libglib-2.0.so.0
#93 0x00007fc595881813 in QEventDispatcherGlib::processEvents (this=0x55cd67b60e80, flags=...) at kernel/qeventdispatcher_glib.cpp:423
#94 0x00007fc584f73f15 in QPAEventDispatcherGlib::processEvents (this=0x55cd67b60e80, flags=...) at qeventdispatcher_glib.cpp:69
#95 0x00007fc59583017b in QEventLoop::exec (this=this@entry=0x7fffee7ad130, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:140
#96 0x00007fc595838246 in QCoreApplication::exec () at ../../include/QtCore/../../src/corelib/global/qflags.h:120
#97 0x000055cd6664d087 in main (argc=<optimized out>, argv=<optimized out>) at /usr/src/debug/plasma-discover-5.14.3-1.fc29.x86_64/discover/main.cpp:156
[Inferior 1 (process 7993) detached]

The reporter indicates this bug may be a duplicate of or related to bug 395388.

Possible duplicates by query: bug 396047, bug 395388.

Reported using DrKonqi
Comment 1 Nate Graham 2018-11-26 17:28:39 UTC 

*** This bug has been marked as a duplicate of bug 395388 ***
Comment 2 tarcisio 2021-06-07 15:01:16 UTC 
Created attachment 139078 [details]
New crash information added by DrKonqi

plasma-discover (5.14.5) using Qt 5.11.3

- What I was doing when the application crashed: i clicked with right buttton in dropbox icon on tray to open and then "Launch Dropbox Website" when open the message "Cant open the file://tmp/dbxl12c0_i1r.html#5f9xxxxxxxxxxxxx" and a few seconds later, discover app crashs.

- Custom settings of the application: i install dropbox manualy using .deb

-- Backtrace (Reduced):
#8  0x00007f5b1c0f812c in qobject_cast<QQmlDelegateModelItem*> (object=<optimized out>) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qobject.h:499
#9  QQmlDelegateModelItem::dataForObject (object=object@entry=0x55b14571a8a0) at types/qqmldelegatemodel.cpp:1986
#10 0x00007f5b1c0ff412 in QQmlDelegateModelPrivate::release (this=0x55b14593da80, object=0x55b14571a8a0) at types/qqmldelegatemodel.cpp:543
#11 0x00007f5b1c0ff4b2 in QQmlDelegateModelPrivate::release (object=<optimized out>, this=<optimized out>) at types/qqmldelegatemodel.cpp:567
#12 QQmlDelegateModel::release (this=<optimized out>, item=<optimized out>) at types/qqmldelegatemodel.cpp:567