Bug 386267

Summary:	KNotify crashes when files are saved to observed directories
Product:	[Unmaintained] kdelibs	Reporter:	Michał Słonina <michal.slonina>
Component:	knotify	Assignee:	Olivier Goffart <ogoffart>
Status:	RESOLVED UPSTREAM
Severity:	crash	Keywords:	drkonqi
Priority:	NOR
Version First Reported In:	unspecified
Target Milestone:	---
Platform:	openSUSE
OS:	Linux
Latest Commit:		Version Fixed/Implemented In:
Sentry Crash Report:

Description Michał Słonina 2017-10-27 20:38:18 UTC

Application: knotify4 (4.14.25)
KDE Platform Version: 4.14.25
Qt Version: 4.8.6
Operating System: Linux 4.4.87-18.29-default x86_64
Distribution: "SLES 12 SP2"

-- Information about the crash:
- What I was doing when the application crashed:
I just created a file. I have a Lyx, Dia open and every time I save a file in Lyx or Dia KNotify crashes.

The crash can be reproduced every time.

-- Backtrace:
Application: KNotify (knotify4), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f9457266900 (LWP 19242))]

Thread 2 (Thread 0x7f9451a8a700 (LWP 19243)):
#0  0x000000300140fa7c in __lll_lock_wait () at /lib64/libpthread.so.0
#1  0x000000300140a7fb in pthread_mutex_lock () at /lib64/libpthread.so.0
#2  0x00000030000010a2 in tls_get_addr_tail () at /lib64/ld-linux-x86-64.so.2
#3  0x0000003002c95990 in __cxa_get_globals () at /usr/lib64/libstdc++.so.6
#4  0x0000003002c95859 in std::uncaught_exception() () at /usr/lib64/libstdc++.so.6
#5  0x0000003025a7777c in  () at /usr/lib64/libQtCore.so.4
#6  0x0000003025a77a64 in qWarning(char const*, ...) () at /usr/lib64/libQtCore.so.4
#7  0x0000003025bb01be in  () at /usr/lib64/libQtCore.so.4
#8  0x000000300304bda1 in g_main_context_check () at /usr/lib64/libglib-2.0.so.0
#9  0x000000300304c2a8 in  () at /usr/lib64/libglib-2.0.so.0
#10 0x000000300304c42c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#11 0x0000003025baffce in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQtCore.so.4
#12 0x0000003025b81d3f in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQtCore.so.4
#13 0x0000003025b82035 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQtCore.so.4
#14 0x0000003025a7f49f in QThread::exec() () at /usr/lib64/libQtCore.so.4
#15 0x0000003025b63643 in  () at /usr/lib64/libQtCore.so.4
#16 0x0000003025a81b7f in  () at /usr/lib64/libQtCore.so.4
#17 0x0000003001408744 in start_thread () at /lib64/libpthread.so.0
#18 0x0000003000ce9aad in clone () at /lib64/libc.so.6

Thread 1 (Thread 0x7f9457266900 (LWP 19242)):
[KCrash Handler]
#6  0x000000300f67a397 in QMetaObject::className() const () at /usr/lib64/libQt5Core.so.5
#7  0x00007f944b916fff in  () at /usr/lib64/libQt5Widgets.so.5
#8  0x000000300000ecba in call_init.part () at /lib64/ld-linux-x86-64.so.2
#9  0x000000300000eda3 in _dl_init () at /lib64/ld-linux-x86-64.so.2
#10 0x0000003000012f45 in dl_open_worker () at /lib64/ld-linux-x86-64.so.2
#11 0x000000300000eb74 in _dl_catch_error () at /lib64/ld-linux-x86-64.so.2
#12 0x000000300001272b in _dl_open () at /lib64/ld-linux-x86-64.so.2
#13 0x0000003001800efb in dlopen_doit () at /lib64/libdl.so.2
#14 0x000000300000eb74 in _dl_catch_error () at /lib64/ld-linux-x86-64.so.2
#15 0x00000030018014ad in _dlerror_run () at /lib64/libdl.so.2
#16 0x0000003001800f91 in dlopen@@GLIBC_2.2.5 () at /lib64/libdl.so.2
#17 0x00007f9450ba2b8f in  () at /usr/lib64/libvlccore.so.8
#18 0x00007f9450b881eb in  () at /usr/lib64/libvlccore.so.8
#19 0x00007f9450b884cb in  () at /usr/lib64/libvlccore.so.8
#20 0x00007f9450b88414 in  () at /usr/lib64/libvlccore.so.8
#21 0x00007f9450b88979 in  () at /usr/lib64/libvlccore.so.8
#22 0x00007f9450b88eb7 in  () at /usr/lib64/libvlccore.so.8
#23 0x00007f9450b0fbcd in libvlc_InternalInit () at /usr/lib64/libvlccore.so.8
#24 0x00007f94508e05e3 in libvlc_new () at /usr/lib64/libvlc.so.5
#25 0x00007f9450e65c39 in  () at /usr/lib64/kde4/plugins/phonon_backend/phonon_vlc.so
#26 0x00007f9450e4b1b8 in  () at /usr/lib64/kde4/plugins/phonon_backend/phonon_vlc.so
#27 0x00007f9450e4bd3b in qt_plugin_instance () at /usr/lib64/kde4/plugins/phonon_backend/phonon_vlc.so
#28 0x0000003025b67501 in QPluginLoader::instance() () at /usr/lib64/libQtCore.so.4
#29 0x00007f9451080f3b in  () at /usr/lib64/kde4/plugins/phonon_platform/kde.so
#30 0x00007f9451081723 in  () at /usr/lib64/kde4/plugins/phonon_platform/kde.so
#31 0x000000308122bc36 in  () at /usr/lib64/libphonon.so.4
#32 0x000000308122c2d7 in Phonon::Factory::backend(bool) () at /usr/lib64/libphonon.so.4
#33 0x000000308122c8a3 in  () at /usr/lib64/libphonon.so.4
#34 0x0000003081224979 in  () at /usr/lib64/libphonon.so.4
#35 0x0000003081222856 in  () at /usr/lib64/libphonon.so.4
#36 0x000000000040e771 in  ()
#37 0x000000000040f9ba in  ()
#38 0x000000000040bcd5 in  ()
#39 0x000000000040c69f in  ()
#40 0x000000000040cf3c in  ()
#41 0x000000000040d2d0 in  ()
#42 0x000000000040d433 in  ()
#43 0x0000003029025ced in  () at /usr/lib64/libQtDBus.so.4
#44 0x0000003029026e79 in  () at /usr/lib64/libQtDBus.so.4
#45 0x000000302902795d in  () at /usr/lib64/libQtDBus.so.4
#46 0x0000003029027a2b in  () at /usr/lib64/libQtDBus.so.4
#47 0x0000003025b9b48e in QObject::event(QEvent*) () at /usr/lib64/libQtCore.so.4
#48 0x0000003029ddd6fc in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib64/libQtGui.so.4
#49 0x0000003029de3c3d in QApplication::notify(QObject*, QEvent*) () at /usr/lib64/libQtGui.so.4
#50 0x0000003031434e3a in KApplication::notify(QObject*, QEvent*) () at /usr/lib64/libkdeui.so.5
#51 0x0000003025b8317d in QCoreApplication::notifyInternal(QObject*, QEvent*) () at /usr/lib64/libQtCore.so.4
#52 0x0000003025b8644d in QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) () at /usr/lib64/libQtCore.so.4
#53 0x0000003025bb07ee in  () at /usr/lib64/libQtCore.so.4
#54 0x000000300304c134 in g_main_context_dispatch () at /usr/lib64/libglib-2.0.so.0
#55 0x000000300304c388 in  () at /usr/lib64/libglib-2.0.so.0
#56 0x000000300304c42c in g_main_context_iteration () at /usr/lib64/libglib-2.0.so.0
#57 0x0000003025baffae in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQtCore.so.4
#58 0x0000003029e7a606 in  () at /usr/lib64/libQtGui.so.4
#59 0x0000003025b81d3f in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQtCore.so.4
#60 0x0000003025b82035 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib64/libQtCore.so.4
#61 0x0000003025b87489 in QCoreApplication::exec() () at /usr/lib64/libQtCore.so.4
#62 0x000000000040a2b5 in  ()
#63 0x0000003000c206e5 in __libc_start_main () at /lib64/libc.so.6
#64 0x000000000040a379 in _start ()

Reported using DrKonqi

Comment 1 Michał Słonina 2017-10-27 20:41:02 UTC

It looks like a bug in VLC, closing.

Comment 2 Christoph Feck 2017-11-15 19:31:55 UTC

See also bug 347917.