Bug 449529

Application: kdeconnectd (21.12.1)

Qt Version: 5.15.3
Frameworks Version: 5.90.0
Operating System: Linux 5.13.0-28-generic x86_64
Windowing System: X11
Distribution: KDE neon User - Plasma 25th Anniversary Edition
DrKonqi: 5.23.5 [KCrashBackend]

-- Information about the crash:
- What I was doing when the application crashed:
It has been happening several times for maybe a couple of weeks, only crashes at startup but after restart works fine.

The crash can be reproduced sometimes.

-- Backtrace:
Application: Demonio de KDE Connect (kdeconnectd), signal: Segmentation fault

[New LWP 2401]
[New LWP 2405]
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
0x00007fc1bef2daff in __GI___poll (fds=0x7fffdca2fe38, nfds=1, timeout=1000) at ../sysdeps/unix/sysv/linux/poll.c:29
__preamble__
[Current thread is 1 (Thread 0x7fc1bf1f72c0 (LWP 2376))]

Thread 3 (Thread 0x7fc1b2de7700 (LWP 2405)):
#0  0x00007fc1bd86f508 in g_mutex_unlock () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007fc1bd8218e1 in g_main_context_prepare () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fc1bd82229b in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fc1bd8224a3 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007fc1bf507a0b in QEventDispatcherGlib::processEvents (this=0x7fc1a4000b60, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#5  0x00007fc1bf4abc9b in QEventLoop::exec (this=this@entry=0x7fc1b2de6be0, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:141
#6  0x00007fc1bf2c5362 in QThread::exec (this=<optimized out>) at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#7  0x00007fc1bf2c6543 in QThreadPrivate::start (arg=0x55ef5b869180) at thread/qthread_unix.cpp:331
#8  0x00007fc1be271609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#9  0x00007fc1bef3a293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7fc1b3fff700 (LWP 2401)):
#0  0x00007fc1bef2daff in __GI___poll (fds=0x7fc1ac004e60, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007fc1bd82236e in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007fc1bd8224a3 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007fc1bf507a0b in QEventDispatcherGlib::processEvents (this=0x7fc1ac000b60, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4  0x00007fc1bf4abc9b in QEventLoop::exec (this=this@entry=0x7fc1b3ffebb0, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:141
#5  0x00007fc1bf2c5362 in QThread::exec (this=<optimized out>) at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#6  0x00007fc1bfe40f4b in ?? () from /lib/x86_64-linux-gnu/libQt5DBus.so.5
#7  0x00007fc1bf2c6543 in QThreadPrivate::start (arg=0x7fc1bfec4d80) at thread/qthread_unix.cpp:331
#8  0x00007fc1be271609 in start_thread (arg=<optimized out>) at pthread_create.c:477
#9  0x00007fc1bef3a293 in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7fc1bf1f72c0 (LWP 2376)):
[KCrash Handler]
#4  0x00007fc1bf4f6df4 in (anonymous namespace)::constData (d=...) at ../../include/QtCore/5.15.3/QtCore/private/../../../../../src/corelib/kernel/qmetatype_p.h:64
#5  qVariantToHelper<QMap<QString, QVariant> > (handlerManager=..., d=...) at kernel/qvariant.cpp:2669
#6  QVariant::toMap (this=0x55ef5baf9c48) at kernel/qvariant.cpp:2721
#7  0x00007fc1b1fa4681 in ConnectivityReportPlugin::receivePacket (this=0x55ef5ba1c880, np=...) at /usr/include/x86_64-linux-gnu/qt5/QtCore/qmap.h:424
#8  0x00007fc1c0af15e0 in Device::privateReceivedPacket (this=<optimized out>, np=...) at ./core/device.cpp:398
#9  0x00007fc1bf4e41be in QtPrivate::QSlotObjectBase::call (a=0x7fffdca30ca0, r=0x55ef5b8e9070, this=0x55ef5b98d830) at ../../include/QtCore/../../src/corelib/kernel/qobjectdefs_impl.h:398
#10 doActivate<false> (sender=0x55ef5b98cc10, signal_index=7, argv=0x7fffdca30ca0) at kernel/qobject.cpp:3886
#11 0x00007fc1bf4dd587 in QMetaObject::activate (sender=sender@entry=0x55ef5b98cc10, m=m@entry=0x7fc1c0b0ba40 <DeviceLink::staticMetaObject>, local_signal_index=local_signal_index@entry=4, argv=argv@entry=0x7fffdca30ca0) at kernel/qobject.cpp:3946
#12 0x00007fc1c0aa8e19 in DeviceLink::receivedPacket (this=this@entry=0x55ef5b98cc10, _t1=...) at ./obj-x86_64-linux-gnu/core/kdeconnectcore_autogen/CSWKE6ESUK/moc_devicelink.cpp:225
#13 0x00007fc1c0ac1e8a in LanDeviceLink::dataReceived (this=0x55ef5b98cc10) at ./core/backends/lan/landevicelink.cpp:135
#14 0x00007fc1bf4e41be in QtPrivate::QSlotObjectBase::call (a=0x7fffdca30e50, r=0x55ef5b98cc10, this=0x55ef5b98cf20) at ../../include/QtCore/../../src/corelib/kernel/qobjectdefs_impl.h:398
#15 doActivate<false> (sender=0x55ef5b98c5d0, signal_index=3, argv=0x7fffdca30e50) at kernel/qobject.cpp:3886
#16 0x00007fc1bf4dd587 in QMetaObject::activate (sender=sender@entry=0x55ef5b98c5d0, m=m@entry=0x7fc1c0b0b900 <SocketLineReader::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x0) at kernel/qobject.cpp:3946
#17 0x00007fc1c0aa8934 in SocketLineReader::readyRead (this=this@entry=0x55ef5b98c5d0) at ./obj-x86_64-linux-gnu/core/kdeconnectcore_autogen/T4CFMAPE73/moc_socketlinereader.cpp:139
#18 0x00007fc1c0acc084 in SocketLineReader::dataReceived (this=0x55ef5b98c5d0) at ./core/backends/lan/socketlinereader.cpp:29
#19 0x00007fc1bf4e41be in QtPrivate::QSlotObjectBase::call (a=0x7fffdca30f60, r=0x55ef5b98c5d0, this=0x55ef5b98cda0) at ../../include/QtCore/../../src/corelib/kernel/qobjectdefs_impl.h:398
#20 doActivate<false> (sender=0x55ef5b8897e0, signal_index=3, argv=0x7fffdca30f60) at kernel/qobject.cpp:3886
#21 0x00007fc1bec8f91f in ?? () from /lib/x86_64-linux-gnu/libQt5Network.so.5
#22 0x00007fc1bec61fb0 in ?? () from /lib/x86_64-linux-gnu/libQt5Network.so.5
#23 0x00007fc1bf4e41f0 in doActivate<false> (sender=0x55ef5b7e72e0, signal_index=3, argv=0x7fffdca32120) at ../../include/QtCore/../../src/corelib/kernel/qobjectdefs_impl.h:395
#24 0x00007fc1bec25ba4 in ?? () from /lib/x86_64-linux-gnu/libQt5Network.so.5
#25 0x00007fc1bec25c39 in ?? () from /lib/x86_64-linux-gnu/libQt5Network.so.5
#26 0x00007fc1bec37f49 in ?? () from /lib/x86_64-linux-gnu/libQt5Network.so.5
#27 0x00007fc1c0035dc3 in QApplicationPrivate::notify_helper (this=this@entry=0x55ef5b735de0, receiver=receiver@entry=0x55ef5b7e7740, e=e@entry=0x7fffdca32430) at kernel/qapplication.cpp:3632
#28 0x00007fc1c003ebb8 in QApplication::notify (this=0x7fffdca32700, receiver=0x55ef5b7e7740, e=0x7fffdca32430) at kernel/qapplication.cpp:3156
#29 0x00007fc1bf4ad19a in QCoreApplication::notifyInternal2 (receiver=0x55ef5b7e7740, event=0x7fffdca32430) at ../../include/QtCore/5.15.3/QtCore/private/../../../../../src/corelib/thread/qthread_p.h:332
#30 0x00007fc1bf5085f5 in socketNotifierSourceDispatch (source=0x55ef5b800e60) at kernel/qeventdispatcher_glib.cpp:107
#31 0x00007fc1bd82217d in g_main_context_dispatch () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#32 0x00007fc1bd822400 in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#33 0x00007fc1bd8224a3 in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#34 0x00007fc1bf5079f2 in QEventDispatcherGlib::processEvents (this=0x55ef5b806090, flags=...) at kernel/qeventdispatcher_glib.cpp:423
#35 0x00007fc1bf4abc9b in QEventLoop::exec (this=this@entry=0x7fffdca32640, flags=..., flags@entry=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:141
#36 0x00007fc1bf4b3e44 in QCoreApplication::exec () at ../../include/QtCore/../../src/corelib/global/qflags.h:121
#37 0x000055ef5a920f87 in main (argc=<optimized out>, argv=<optimized out>) at ./daemon/kdeconnectd.cpp:178
[Inferior 1 (process 2376) detached]

The reporter indicates this bug may be a duplicate of or related to bug 438844.

Possible duplicates by query: bug 449276, bug 448005, bug 447060, bug 447059, bug 445771.

Reported using DrKonqi