Bug 407432

Summary:	Update for Discover Fail
Product:	[Applications] Discover	Reporter:	Luciano <luc.bat.anjos>
Component:	discover	Assignee:	Dan Leinir Turthra Jensen <leinir>
Status:	RESOLVED FIXED
Severity:	crash	CC:	aleixpol, nate
Priority:	NOR	Keywords:	drkonqi
Version First Reported In:	5.8.5
Target Milestone:	---
Platform:	Debian stable
OS:	Linux
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:

Description Luciano 2019-05-11 14:41:30 UTC

Application: plasma-discover (5.8.5)

Qt Version: 5.7.1
Frameworks Version: 5.28.0
Operating System: Linux 4.9.0-8-amd64 x86_64
Distribution: Debian GNU/Linux 9.9 (stretch)

-- Information about the crash:
- What I was doing when the application crashed:

default-java-plugin (2:1.8-58), icedtea-8-plugin (1.6.2-3.1)

The crash can be reproduced sometimes.

-- Backtrace:
Application: Discover (plasma-discover), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f4a635b88c0 (LWP 11066))]

Thread 7 (Thread 0x7f4a2885d700 (LWP 11083)):
#0  0x00007f4a5b6a9fd8 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f4a5b6aa91b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f4a5b6aab0c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f4a60aba1eb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f4a60a63d1a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f4a60892093 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f4a60896d48 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f4a5d7df4a4 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#8  0x00007f4a5feabd0f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 6 (Thread 0x7f4a38bde700 (LWP 11072)):
#0  0x00007f4a5fea28bd in poll () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007f4a5b6aa9f6 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f4a5b6aab0c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f4a60aba1eb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f4a60a63d1a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f4a60892093 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f4a60896d48 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f4a5d7df4a4 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#8  0x00007f4a5feabd0f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 5 (Thread 0x7f4a393df700 (LWP 11071)):
#0  0x00007f4a5fea28bd in poll () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007f4a5b6aa9f6 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f4a5b6aab0c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f4a60aba1eb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f4a60a63d1a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f4a60892093 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f4a62e72406 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#7  0x00007f4a60896d48 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f4a5d7df4a4 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#9  0x00007f4a5feabd0f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 4 (Thread 0x7f4a43fff700 (LWP 11070)):
#0  0x00007f4a5fe9e907 in read () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007f4a5b6eed40 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f4a5b6aa4be in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f4a5b6aa994 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f4a5b6aab0c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f4a60aba1eb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f4a60a63d1a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f4a60892093 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f4a6121a6a5 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#9  0x00007f4a60896d48 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007f4a5d7df4a4 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#11 0x00007f4a5feabd0f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 3 (Thread 0x7f4a49a77700 (LWP 11068)):
#0  0x00007f4a5fe9e92d in read () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007f4a5b6eed40 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f4a5b6aa4be in g_main_context_check () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f4a5b6aa994 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f4a5b6aab0c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f4a60aba1eb in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f4a60a63d1a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f4a60892093 in QThread::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f4a636fd6e5 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#9  0x00007f4a60896d48 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007f4a5d7df4a4 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#11 0x00007f4a5feabd0f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 2 (Thread 0x7f4a51e5b700 (LWP 11067)):
#0  0x00007f4a5fea28bd in poll () from /lib/x86_64-linux-gnu/libc.so.6
#1  0x00007f4a5b23c150 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007f4a5b23dee9 in xcb_wait_for_event () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007f4a543b9b89 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#4  0x00007f4a60896d48 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f4a5d7df4a4 in start_thread () from /lib/x86_64-linux-gnu/libpthread.so.0
#6  0x00007f4a5feabd0f in clone () from /lib/x86_64-linux-gnu/libc.so.6

Thread 1 (Thread 0x7f4a635b88c0 (LWP 11066)):
[KCrash Handler]
#6  0x00007f4a60a98f7c in QObject::~QObject() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f4a63755109 in QDBusPendingCallWatcher::~QDBusPendingCallWatcher() () from /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#8  0x00007f4a60a927a0 in QObject::event(QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f4a619d9b8c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#10 0x00007f4a619e1351 in QApplication::notify(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#11 0x00007f4a60a65d30 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#12 0x00007f4a60a684cd in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#13 0x00007f4a60ab9dc3 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#14 0x00007f4a5b6aa7f7 in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#15 0x00007f4a5b6aaa60 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#16 0x00007f4a5b6aab0c in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#17 0x00007f4a60aba1cf in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#18 0x00007f4a60a63d1a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#19 0x00007f4a60a6c46c in QCoreApplication::exec() () from /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#20 0x000055d030094c02 in ?? ()
#21 0x00007f4a5fde32e1 in __libc_start_main () from /lib/x86_64-linux-gnu/libc.so.6
#22 0x000055d030094d2a in _start ()

Reported using DrKonqi

Comment 1 Nate Graham 2019-05-13 04:08:47 UTC

This has been fixed in more recent versions of Discover. The version shipped with Debian 9 is very very old.