Bug 378339

Summary: Crash in QQuickItem::isVisible() when removing characters in search text box
Product: [Applications] Discover Reporter: dS810 <artem.anufrij>
Component: discoverAssignee: Aleix Pol <aleixpol>
Status: RESOLVED UPSTREAM    
Severity: crash CC: 420ever, admin, akawebdj, bugseforuns, carmelo.piccione, cruzhm77, deogracia, dominik.schlack, erik.itland, f14, g.alegria, glutbugreports, greatsport1, hmcilvain1, ichigo663, jeckferson, kde, markg61, mastertwitchy, matheusfillipeag, moshguy, mustafa1024m, nate, nikolaisaunders, notuxius, null, oldwo, reyjoshua, rick.beldin, rohanrhu2, rydenpf, sergei.chernikov, shopmail1, taylor.joshua88, temp00794, themooleman, ve9cbc04, wil
Priority: NOR Keywords: drkonqi
Version: 5.9.4   
Target Milestone: ---   
Platform: Arch Linux   
OS: Linux   
URL: https://bugreports.qt.io/browse/QTBUG-65881
See Also: https://bugs.kde.org/show_bug.cgi?id=385718
https://bugs.kde.org/show_bug.cgi?id=388414
https://bugs.kde.org/show_bug.cgi?id=386347
https://bugs.kde.org/show_bug.cgi?id=386015
Latest Commit: Version Fixed In: Qt 5.9.5
Attachments: New crash information added by DrKonqi

Description dS810 2017-04-01 10:48:20 UTC 
Application: plasma-discover (5.9.4)

Qt Version: 5.8.0
Frameworks Version: 5.32.0
Operating System: Linux 4.10.6-1-ARCH x86_64
Distribution (Platform): Archlinux Packages

-- Information about the crash:
- What I was doing when the application crashed:
1. Input search term "gim"
2. select a "non application" result for preview
3. select "application" on the left side
--> results will be filtered (OK!)
4. remove a char from your search term "gim" --> "gi"
--> Crash

The crash can be reproduced every time.

-- Backtrace:
Application: Entdecken (plasma-discover), signal: Segmentation fault
Using host libthread_db library "/usr/lib/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fbacb2fe5c0 (LWP 2684))]

Thread 9 (Thread 0x7fba21079700 (LWP 2721)):
#0  0x00007fbac67ef67d in poll () at /usr/lib/libc.so.6
#1  0x00007fbac140d7a6 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007fbac140db32 in g_main_loop_run () at /usr/lib/libglib-2.0.so.0
#3  0x00007fba44530446 in  () at /usr/lib/libgio-2.0.so.0
#4  0x00007fbac1435175 in  () at /usr/lib/libglib-2.0.so.0
#5  0x00007fbac33472e7 in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007fbac67f954f in clone () at /usr/lib/libc.so.6

Thread 8 (Thread 0x7fba2187a700 (LWP 2720)):
#0  0x00007fbac67ef67d in poll () at /usr/lib/libc.so.6
#1  0x00007fbac140d7a6 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007fbac140d8bc in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#3  0x00007fbac140d901 in  () at /usr/lib/libglib-2.0.so.0
#4  0x00007fbac1435175 in  () at /usr/lib/libglib-2.0.so.0
#5  0x00007fbac33472e7 in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007fbac67f954f in clone () at /usr/lib/libc.so.6

Thread 7 (Thread 0x7fba83df9700 (LWP 2696)):
#0  0x00007fbac67ef67d in poll () at /usr/lib/libc.so.6
#1  0x00007fbac140d7a6 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007fbac140d8bc in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#3  0x00007fbac742906b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#4  0x00007fbac73d289a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007fbac71f4a73 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x00007fbac71f96d8 in  () at /usr/lib/libQt5Core.so.5
#7  0x00007fbac33472e7 in start_thread () at /usr/lib/libpthread.so.0
#8  0x00007fbac67f954f in clone () at /usr/lib/libc.so.6

Thread 6 (Thread 0x7fba9b129700 (LWP 2691)):
#0  0x00007fbac7428792 in  () at /usr/lib/libQt5Core.so.5
#1  0x00007fbac140cc8d in g_main_context_prepare () at /usr/lib/libglib-2.0.so.0
#2  0x00007fbac140d6cb in  () at /usr/lib/libglib-2.0.so.0
#3  0x00007fbac140d8bc in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#4  0x00007fbac742906b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007fbac73d289a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#6  0x00007fbac71f4a73 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#7  0x00007fbac71f96d8 in  () at /usr/lib/libQt5Core.so.5
#8  0x00007fbac33472e7 in start_thread () at /usr/lib/libpthread.so.0
#9  0x00007fbac67f954f in clone () at /usr/lib/libc.so.6

Thread 5 (Thread 0x7fbaa48d0700 (LWP 2690)):
#0  0x00007fbac140d05f in g_main_context_check () at /usr/lib/libglib-2.0.so.0
#1  0x00007fbac140d744 in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007fbac140d8bc in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#3  0x00007fbac742906b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#4  0x00007fbac73d289a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007fbac71f4a73 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x00007fbaca65efd6 in  () at /usr/lib/libQt5Quick.so.5
#7  0x00007fbac71f96d8 in  () at /usr/lib/libQt5Core.so.5
#8  0x00007fbac33472e7 in start_thread () at /usr/lib/libpthread.so.0
#9  0x00007fbac67f954f in clone () at /usr/lib/libc.so.6

Thread 4 (Thread 0x7fbaaebe4700 (LWP 2689)):
#0  0x00007fbac1452e64 in g_mutex_unlock () at /usr/lib/libglib-2.0.so.0
#1  0x00007fbac140d6be in  () at /usr/lib/libglib-2.0.so.0
#2  0x00007fbac140d8bc in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#3  0x00007fbac742906b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#4  0x00007fbac73d289a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007fbac71f4a73 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#6  0x00007fbac7d9e025 in  () at /usr/lib/libQt5Qml.so.5
#7  0x00007fbac71f96d8 in  () at /usr/lib/libQt5Core.so.5
#8  0x00007fbac33472e7 in start_thread () at /usr/lib/libpthread.so.0
#9  0x00007fbac67f954f in clone () at /usr/lib/libc.so.6

Thread 3 (Thread 0x7fbaafdf5700 (LWP 2688)):
#0  0x00007fbac1452e64 in g_mutex_unlock () at /usr/lib/libglib-2.0.so.0
#1  0x00007fbac140d33a in g_main_context_dispatch () at /usr/lib/libglib-2.0.so.0
#2  0x00007fbac140d810 in  () at /usr/lib/libglib-2.0.so.0
#3  0x00007fbac140d8bc in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#4  0x00007fbac742906b in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#5  0x00007fbac73d289a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#6  0x00007fbac71f4a73 in QThread::exec() () at /usr/lib/libQt5Core.so.5
#7  0x00007fbac9070125 in  () at /usr/lib/libQt5DBus.so.5
#8  0x00007fbac71f96d8 in  () at /usr/lib/libQt5Core.so.5
#9  0x00007fbac33472e7 in start_thread () at /usr/lib/libpthread.so.0
#10 0x00007fbac67f954f in clone () at /usr/lib/libc.so.6

Thread 2 (Thread 0x7fbab87cc700 (LWP 2687)):
#0  0x00007fbac67ef67d in poll () at /usr/lib/libc.so.6
#1  0x00007fbac11a68e0 in  () at /usr/lib/libxcb.so.1
#2  0x00007fbac11a8679 in xcb_wait_for_event () at /usr/lib/libxcb.so.1
#3  0x00007fbabb363239 in  () at /usr/lib/libQt5XcbQpa.so.5
#4  0x00007fbac71f96d8 in  () at /usr/lib/libQt5Core.so.5
#5  0x00007fbac33472e7 in start_thread () at /usr/lib/libpthread.so.0
#6  0x00007fbac67f954f in clone () at /usr/lib/libc.so.6

Thread 1 (Thread 0x7fbacb2fe5c0 (LWP 2684)):
[KCrash Handler]
#6  0x00007fbaca701734 in QQuickItem::isVisible() const () at /usr/lib/libQt5Quick.so.5
#7  0x00007fbaca701b61 in  () at /usr/lib/libQt5Quick.so.5
#8  0x00007fbaca70bc53 in QQuickItemPrivate::deliverKeyEvent(QKeyEvent*) () at /usr/lib/libQt5Quick.so.5
#9  0x00007fbaca70be91 in QQuickItem::event(QEvent*) () at /usr/lib/libQt5Quick.so.5
#10 0x00007fbac895334c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#11 0x00007fbac895ab61 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#12 0x00007fbac73d4440 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/libQt5Core.so.5
#13 0x00007fbaca701b7d in  () at /usr/lib/libQt5Quick.so.5
#14 0x00007fbaca70bc53 in QQuickItemPrivate::deliverKeyEvent(QKeyEvent*) () at /usr/lib/libQt5Quick.so.5
#15 0x00007fbaca70be91 in QQuickItem::event(QEvent*) () at /usr/lib/libQt5Quick.so.5
#16 0x00007fbac895334c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#17 0x00007fbac895ab61 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#18 0x00007fbac73d4440 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/libQt5Core.so.5
#19 0x00007fbaca701b7d in  () at /usr/lib/libQt5Quick.so.5
#20 0x00007fbaca70bc53 in QQuickItemPrivate::deliverKeyEvent(QKeyEvent*) () at /usr/lib/libQt5Quick.so.5
#21 0x00007fbaca70be91 in QQuickItem::event(QEvent*) () at /usr/lib/libQt5Quick.so.5
#22 0x00007fbac895334c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#23 0x00007fbac895ab61 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#24 0x00007fbac73d4440 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/libQt5Core.so.5
#25 0x00007fbaca701b7d in  () at /usr/lib/libQt5Quick.so.5
#26 0x00007fbaca70bc53 in QQuickItemPrivate::deliverKeyEvent(QKeyEvent*) () at /usr/lib/libQt5Quick.so.5
#27 0x00007fbaca70be91 in QQuickItem::event(QEvent*) () at /usr/lib/libQt5Quick.so.5
#28 0x00007fbac895334c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#29 0x00007fbac895ab61 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#30 0x00007fbac73d4440 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/libQt5Core.so.5
#31 0x00007fbaca71c5ad in QQuickWindow::sendEvent(QQuickItem*, QEvent*) () at /usr/lib/libQt5Quick.so.5
#32 0x00007fbaca71c75f in QQuickWindow::keyPressEvent(QKeyEvent*) () at /usr/lib/libQt5Quick.so.5
#33 0x00007fbac81cad05 in QWindow::event(QEvent*) () at /usr/lib/libQt5Gui.so.5
#34 0x00007fbaca7244a5 in QQuickWindow::event(QEvent*) () at /usr/lib/libQt5Quick.so.5
#35 0x00007fbac895334c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#36 0x00007fbac895ab61 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/libQt5Widgets.so.5
#37 0x00007fbac73d4440 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/libQt5Core.so.5
#38 0x00007fbac81bb4b8 in QGuiApplicationPrivate::processKeyEvent(QWindowSystemInterfacePrivate::KeyEvent*) () at /usr/lib/libQt5Gui.so.5
#39 0x00007fbac81c08a5 in QGuiApplicationPrivate::processWindowSystemEvent(QWindowSystemInterfacePrivate::WindowSystemEvent*) () at /usr/lib/libQt5Gui.so.5
#40 0x00007fbac819c44b in QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Gui.so.5
#41 0x00007fbabb3c39e0 in  () at /usr/lib/libQt5XcbQpa.so.5
#42 0x00007fbac140d5a7 in g_main_context_dispatch () at /usr/lib/libglib-2.0.so.0
#43 0x00007fbac140d810 in  () at /usr/lib/libglib-2.0.so.0
#44 0x00007fbac140d8bc in g_main_context_iteration () at /usr/lib/libglib-2.0.so.0
#45 0x00007fbac742904f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#46 0x00007fbac73d289a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/libQt5Core.so.5
#47 0x00007fbac73dade4 in QCoreApplication::exec() () at /usr/lib/libQt5Core.so.5
#48 0x000000000040d5d9 in  ()
#49 0x00007fbac672d511 in __libc_start_main () at /usr/lib/libc.so.6
#50 0x000000000040db5a in _start ()

Reported using DrKonqi
Comment 1 Aleix Pol 2017-04-13 01:19:59 UTC 
Addressed by https://phabricator.kde.org/D5408
Comment 2 Dan Leinir Turthra Jensen 2017-04-18 10:53:34 UTC 
Closed by commit https://commits.kde.org/kirigami/c06013e88e4f18b608253b5b11cb3f56c77f7d02
Comment 3 Dan Leinir Turthra Jensen 2017-04-18 10:59:44 UTC 
*** Bug 378790 has been marked as a duplicate of this bug. ***
Comment 4 Dan Leinir Turthra Jensen 2017-04-18 11:13:32 UTC 
*** Bug 377052 has been marked as a duplicate of this bug. ***
Comment 5 Dan Leinir Turthra Jensen 2017-04-18 11:15:35 UTC 
*** Bug 378917 has been marked as a duplicate of this bug. ***
Comment 6 Dan Leinir Turthra Jensen 2017-04-20 09:33:04 UTC 
*** Bug 377989 has been marked as a duplicate of this bug. ***
Comment 7 Dan Leinir Turthra Jensen 2017-04-24 10:09:56 UTC 
*** Bug 379120 has been marked as a duplicate of this bug. ***
Comment 8 Dan Leinir Turthra Jensen 2017-04-24 10:11:09 UTC 
*** Bug 379084 has been marked as a duplicate of this bug. ***
Comment 9 Dan Leinir Turthra Jensen 2017-04-24 10:12:10 UTC 
*** Bug 379112 has been marked as a duplicate of this bug. ***
Comment 10 Aleix Pol 2017-05-22 12:44:31 UTC 
*** Bug 379337 has been marked as a duplicate of this bug. ***
Comment 11 Aleix Pol 2017-05-22 12:44:52 UTC 
*** Bug 379699 has been marked as a duplicate of this bug. ***
Comment 12 Aleix Pol 2017-05-22 16:10:03 UTC 
*** Bug 379811 has been marked as a duplicate of this bug. ***
Comment 13 Aleix Pol 2017-05-22 16:11:04 UTC 
*** Bug 379757 has been marked as a duplicate of this bug. ***
Comment 14 Aleix Pol 2017-06-07 12:56:58 UTC 
*** Bug 380488 has been marked as a duplicate of this bug. ***
Comment 15 Dan Leinir Turthra Jensen 2017-07-06 10:12:14 UTC 
*** Bug 381973 has been marked as a duplicate of this bug. ***
Comment 16 Dan Leinir Turthra Jensen 2017-07-06 10:13:01 UTC 
*** Bug 381892 has been marked as a duplicate of this bug. ***
Comment 17 Dan Leinir Turthra Jensen 2017-07-18 13:04:21 UTC 
*** Bug 382440 has been marked as a duplicate of this bug. ***
Comment 18 Aleix Pol 2017-09-04 15:16:53 UTC 
*** Bug 383464 has been marked as a duplicate of this bug. ***
Comment 19 Aleix Pol 2017-09-04 15:56:02 UTC 
*** Bug 384327 has been marked as a duplicate of this bug. ***
Comment 20 Nate Graham 2017-12-28 21:05:10 UTC 
*** Bug 388281 has been marked as a duplicate of this bug. ***
Comment 21 Aleix Pol 2018-01-15 00:54:55 UTC 
Seems to be happening still. Also on System Settings, so possibly a Kirigami issue.

As pointed out by Christoph Feck:
https://bugs.kde.org/buglist.cgi?bug_severity=crash&resolution=---&longdesc=QQuickItemPrivate%3A%3AdeliverKeyEvent&longdesc_type=allwordssubstr
Comment 22 Nate Graham 2018-01-18 16:14:56 UTC 
*** Bug 388978 has been marked as a duplicate of this bug. ***
Comment 23 Nate Graham 2018-01-18 20:22:17 UTC 
*** Bug 389173 has been marked as a duplicate of this bug. ***
Comment 24 Nate Graham 2018-01-20 15:31:03 UTC 
This is caused by a Qt bug: https://bugreports.qt.io/browse/QTBUG-65881, which should be resolved by https://codereview.qt-project.org/#/c/217395, once that lands.
Comment 25 Trevor 2018-02-05 10:58:43 UTC 
Created attachment 110349 [details]
New crash information added by DrKonqi

plasma-discover (5.11.5) using Qt 5.9.3

- What I was doing when the application crashed: Was trying to search for an application when it crashed. Regretfully I didn't wait for the search result for the last search; I suspect that's probably why it crashed on me.

-- Backtrace (Reduced):
#6  0x00007f75f4725d84 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
[...]
#8  0x00007f75f7794f23 in QQuickItemPrivate::deliverKeyEvent(QKeyEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#9  0x00007f75f7795185 in QQuickItem::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#10 0x00007f75f5d12b9c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#11 0x00007f75f5d1a5a7 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
Comment 26 Nate Graham 2018-02-06 22:17:30 UTC 
*** Bug 389946 has been marked as a duplicate of this bug. ***
Comment 27 Nate Graham 2018-02-09 00:24:23 UTC 
*** Bug 390114 has been marked as a duplicate of this bug. ***
Comment 28 Nate Graham 2018-02-19 18:33:47 UTC 
*** Bug 390539 has been marked as a duplicate of this bug. ***
Comment 29 Nate Graham 2018-03-11 20:39:16 UTC 
*** Bug 389168 has been marked as a duplicate of this bug. ***
Comment 30 Nate Graham 2018-03-16 21:23:36 UTC 
*** Bug 391676 has been marked as a duplicate of this bug. ***
Comment 31 Nate Graham 2018-03-16 21:24:10 UTC 
*** Bug 391841 has been marked as a duplicate of this bug. ***
Comment 32 Nate Graham 2018-03-16 21:24:25 UTC 
*** Bug 391942 has been marked as a duplicate of this bug. ***
Comment 33 Nate Graham 2018-03-16 21:24:37 UTC 
*** Bug 391938 has been marked as a duplicate of this bug. ***
Comment 34 Nate Graham 2018-03-16 21:28:37 UTC 
*** Bug 391259 has been marked as a duplicate of this bug. ***
Comment 35 Aleix Pol 2018-03-18 17:48:44 UTC 
*** Bug 391971 has been marked as a duplicate of this bug. ***
Comment 36 Nate Graham 2018-04-03 03:18:27 UTC 
*** Bug 392658 has been marked as a duplicate of this bug. ***
Comment 37 Nate Graham 2018-04-07 14:30:22 UTC 
*** Bug 392816 has been marked as a duplicate of this bug. ***
Comment 38 Nate Graham 2018-04-10 21:51:36 UTC 
*** Bug 392979 has been marked as a duplicate of this bug. ***
Comment 39 Nate Graham 2018-04-11 15:02:47 UTC 
*** Bug 393009 has been marked as a duplicate of this bug. ***
Comment 40 Nate Graham 2018-04-11 15:03:50 UTC 
*** Bug 393001 has been marked as a duplicate of this bug. ***
Comment 41 Nate Graham 2018-04-22 01:28:13 UTC 
*** Bug 393381 has been marked as a duplicate of this bug. ***