Bug 413056

Application: ksysguard (5.17.0)
 (Compiled from sources)
Qt Version: 5.13.1
Frameworks Version: 5.63.0
Operating System: Linux 5.0.0-31-generic x86_64
Distribution: KDE neon User Edition 5.17

-- Information about the crash:
- Custom settings of the application:
Output of journalctl -xe
oct 16 16:55:42 jochoapc dhclient[1751]: bound to 192.168.2.154 -- renewal in 5202 seconds.
oct 16 16:55:41 jochoapc NetworkManager[860]: <info>  [1571255741.9730] dhcp4 (enp3s0):   lease time 10800
oct 16 16:55:41 jochoapc NetworkManager[860]: <info>  [1571255741.9731] dhcp4 (enp3s0):   nameserver '192.168.2.254'
oct 16 16:55:41 jochoapc NetworkManager[860]: <info>  [1571255741.9731] dhcp4 (enp3s0):   nameserver '192.168.2.244'
oct 16 16:55:41 jochoapc NetworkManager[860]: <info>  [1571255741.9731] dhcp4 (enp3s0):   domain name 'proimidom.lan'
oct 16 16:55:41 jochoapc NetworkManager[860]: <info>  [1571255741.9731] dhcp4 (enp3s0):   wins '192.168.2.244'
oct 16 16:55:41 jochoapc NetworkManager[860]: <info>  [1571255741.9732] dhcp4 (enp3s0): state changed bound -> bound
oct 16 16:55:43 jochoapc systemd[1]: Starting Network Manager Script Dispatcher Service...
-- Subject: Unit NetworkManager-dispatcher.service has begun start-up
-- Defined-By: systemd
-- Support: http://www.ubuntu.com/support
-- 
-- Unit NetworkManager-dispatcher.service has begun starting up.
oct 16 16:55:43 jochoapc dbus-daemon[827]: [system] Successfully activated service 'org.freedesktop.nm_dispatcher'
oct 16 16:55:43 jochoapc systemd[1]: Started Network Manager Script Dispatcher Service.
-- Subject: Unit NetworkManager-dispatcher.service has finished start-up
-- Defined-By: systemd
-- Support: http://www.ubuntu.com/support
-- 
-- Unit NetworkManager-dispatcher.service has finished starting up.
-- 
-- The start-up result is RESULT.
oct 16 16:55:43 jochoapc nm-dispatcher[23278]: req:1 'dhcp4-change' [enp3s0]: new request (1 scripts)
oct 16 16:55:43 jochoapc nm-dispatcher[23278]: req:1 'dhcp4-change' [enp3s0]: start running ordered scripts...
oct 16 16:56:27 jochoapc dbus-daemon[1180]: [session uid=1000 pid=1180] Activating service name='org.kde.runners.baloo' requested by ':1.23' (uid=1000 pid=1332 comm="/usr/bin/plasma
oct 16 16:56:27 jochoapc dbus-daemon[1180]: [session uid=1000 pid=1180] Activated service 'org.kde.runners.baloo' failed: Process org.kde.runners.baloo exited with status 255
oct 16 16:56:27 jochoapc dbus-daemon[1180]: [session uid=1000 pid=1180] Activating service name='org.kde.runners.baloo' requested by ':1.23' (uid=1000 pid=1332 comm="/usr/bin/plasma
oct 16 16:56:27 jochoapc dbus-daemon[1180]: [session uid=1000 pid=1180] Activated service 'org.kde.runners.baloo' failed: Process org.kde.runners.baloo exited with status 255
oct 16 16:56:30 jochoapc dbus-daemon[1180]: [session uid=1000 pid=1180] Activating service name='org.kde.runners.baloo' requested by ':1.23' (uid=1000 pid=1332 comm="/usr/bin/plasma
oct 16 16:56:30 jochoapc dbus-daemon[1180]: [session uid=1000 pid=1180] Activated service 'org.kde.runners.baloo' failed: Process org.kde.runners.baloo exited with status 255
oct 16 16:56:30 jochoapc dbus-daemon[1180]: [session uid=1000 pid=1180] Activating service name='org.kde.runners.baloo' requested by ':1.23' (uid=1000 pid=1332 comm="/usr/bin/plasma
oct 16 16:56:30 jochoapc dbus-daemon[1180]: [session uid=1000 pid=1180] Activated service 'org.kde.runners.baloo' failed: Process org.kde.runners.baloo exited with status 255
oct 16 16:56:31 jochoapc dbus-daemon[1180]: [session uid=1000 pid=1180] Activating service name='org.kde.runners.baloo' requested by ':1.23' (uid=1000 pid=1332 comm="/usr/bin/plasma
oct 16 16:56:31 jochoapc dbus-daemon[1180]: [session uid=1000 pid=1180] Activated service 'org.kde.runners.baloo' failed: Process org.kde.runners.baloo exited with status 255
oct 16 16:57:24 jochoapc sudo[23668]:   jochoa : a password is required ; TTY=pts/1 ; PWD=/home/jochoa ; USER=root ; COMMAND=/usr/sbin/hddtemp -nq -u C /dev/sda

The crash can be reproduced sometimes.

-- Backtrace:
Application: Monitor del sistema (ksysguard), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7ff75e592bc0 (LWP 22820))]

Thread 4 (Thread 0x7ff7225b3700 (LWP 22823)):
#0  0x00007ff75de6f0b4 in __GI___libc_read (fd=8, buf=0x7ff7225b27a0, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:27
#1  0x00007ff74b2312d0 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007ff74b1ec0b7 in g_main_context_check () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007ff74b1ec570 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007ff74b1ec6dc in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007ff7595899db in QEventDispatcherGlib::processEvents (this=0x7ff71c000b20, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#6  0x00007ff759529eaa in QEventLoop::exec (this=this@entry=0x7ff7225b29b0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:225
#7  0x00007ff7593453ca in QThread::exec (this=<optimized out>) at thread/qthread.cpp:531
#8  0x00007ff759ca00e5 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#9  0x00007ff759346b72 in QThreadPrivate::start (arg=0x7ff759f17d80) at thread/qthread_unix.cpp:360
#10 0x00007ff74d16b6db in start_thread (arg=0x7ff7225b3700) at pthread_create.c:463
#11 0x00007ff75de8088f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7ff7289b7700 (LWP 22822)):
#0  0x00007ff74d1719f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x559a59363a58) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  __pthread_cond_wait_common (abstime=0x0, mutex=0x559a59363a08, cond=0x559a59363a30) at pthread_cond_wait.c:502
#2  __pthread_cond_wait (cond=0x559a59363a30, mutex=0x559a59363a08) at pthread_cond_wait.c:655
#3  0x00007ff729c8a2cb in ?? () from /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#4  0x00007ff729c89ff7 in ?? () from /usr/lib/x86_64-linux-gnu/dri/i965_dri.so
#5  0x00007ff74d16b6db in start_thread (arg=0x7ff7289b7700) at pthread_create.c:463
#6  0x00007ff75de8088f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7ff731e36700 (LWP 22821)):
#0  0x00007ff75de73bf9 in __GI___poll (fds=0x7ff731e358e8, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007ff74d9c6747 in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007ff74d9c836a in xcb_wait_for_event () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007ff733d81f00 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#4  0x00007ff759346b72 in QThreadPrivate::start (arg=0x559a5931fd20) at thread/qthread_unix.cpp:360
#5  0x00007ff74d16b6db in start_thread (arg=0x7ff731e36700) at pthread_create.c:463
#6  0x00007ff75de8088f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7ff75e592bc0 (LWP 22820)):
[KCrash Handler]
#6  0x00007ff7593cedaa in operator== (s1=..., s2=...) at tools/qstring.cpp:3419
#7  0x00007ff75a991217 in QLabel::setText (this=0x559a597cf5c0, text=...) at widgets/qlabel.cpp:287
#8  0x00007ff75e1c3460 in TopLevel::answerReceived (this=0x559a597bb350, id=<optimized out>, answerList=...) at ./gui/ksysguard.cpp:466
#9  0x00007ff75d20fbf2 in KSGRD::SensorAgent::processAnswer(char const*, int) () from /usr/lib/x86_64-linux-gnu/libksgrd.so.7
#10 0x00007ff75d216cd4 in ?? () from /usr/lib/x86_64-linux-gnu/libksgrd.so.7
#11 0x00007ff75955c82f in QtPrivate::QSlotObjectBase::call (a=0x7fff6f1c6530, r=0x559a597f0bb0, this=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qobjectdefs_impl.h:394
#12 QMetaObject::activate (sender=sender@entry=0x559a597c9470, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=6, argv=<optimized out>, argv@entry=0x7fff6f1c6530) at kernel/qobject.cpp:3789
#13 0x00007ff75955cdd7 in QMetaObject::activate (sender=sender@entry=0x559a597c9470, m=m@entry=0x7ff7599df8a0 <QProcess::staticMetaObject>, local_signal_index=local_signal_index@entry=6, argv=argv@entry=0x7fff6f1c6530) at kernel/qobject.cpp:3660
#14 0x00007ff75949a57a in QProcess::readyReadStandardOutput (this=this@entry=0x559a597c9470, _t1=...) at .moc/moc_qprocess.cpp:367
#15 0x00007ff7594a1331 in QProcessPrivate::tryReadFromChannel (this=0x559a597bd600, channel=0x559a597bd728) at io/qprocess.cpp:1078
#16 0x00007ff7594a1800 in QProcessPrivate::_q_canReadStandardOutput (this=<optimized out>) at io/qprocess.cpp:1089
#17 QProcess::qt_static_metacall (_o=<optimized out>, _c=<optimized out>, _id=<optimized out>, _a=0x7fff6f1c6700) at .moc/moc_qprocess.cpp:208
#18 0x00007ff75955c715 in QMetaObject::activate (sender=sender@entry=0x559a5981dad0, signalOffset=<optimized out>, local_signal_index=local_signal_index@entry=0, argv=<optimized out>, argv@entry=0x7fff6f1c6700) at kernel/qobject.cpp:3809
#19 0x00007ff75955cdd7 in QMetaObject::activate (sender=sender@entry=0x559a5981dad0, m=m@entry=0x7ff7599e1c40 <QSocketNotifier::staticMetaObject>, local_signal_index=local_signal_index@entry=0, argv=argv@entry=0x7fff6f1c6700) at kernel/qobject.cpp:3660
#20 0x00007ff759568e68 in QSocketNotifier::activated (this=this@entry=0x559a5981dad0, _t1=<optimized out>, _t2=...) at .moc/moc_qsocketnotifier.cpp:141
#21 0x00007ff759569222 in QSocketNotifier::event (this=0x559a5981dad0, e=0x7fff6f1c69e0) at kernel/qsocketnotifier.cpp:266
#22 0x00007ff75a85feac in QApplicationPrivate::notify_helper (this=this@entry=0x559a592dae80, receiver=receiver@entry=0x559a5981dad0, e=e@entry=0x7fff6f1c69e0) at kernel/qapplication.cpp:3703
#23 0x00007ff75a8674b0 in QApplication::notify (this=0x7fff6f1c6cd0, receiver=0x559a5981dad0, e=0x7fff6f1c69e0) at kernel/qapplication.cpp:3449
#24 0x00007ff75952bd48 in QCoreApplication::notifyInternal2 (receiver=0x559a5981dad0, event=0x7fff6f1c69e0) at kernel/qcoreapplication.cpp:1095
#25 0x00007ff75952bf1e in QCoreApplication::sendEvent (receiver=<optimized out>, event=event@entry=0x7fff6f1c69e0) at kernel/qcoreapplication.cpp:1490
#26 0x00007ff75958a628 in socketNotifierSourceDispatch (source=0x559a593646c0) at kernel/qeventdispatcher_glib.cpp:107
#27 0x00007ff74b1ec417 in g_main_context_dispatch () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#28 0x00007ff74b1ec650 in ?? () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#29 0x00007ff74b1ec6dc in g_main_context_iteration () from /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#30 0x00007ff7595899bf in QEventDispatcherGlib::processEvents (this=0x559a59379680, flags=...) at kernel/qeventdispatcher_glib.cpp:423
#31 0x00007ff759529eaa in QEventLoop::exec (this=this@entry=0x7fff6f1c6c00, flags=..., flags@entry=...) at kernel/qeventloop.cpp:225
#32 0x00007ff759533220 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1403
#33 0x00007ff75e1c536a in kdemain (argc=<optimized out>, argv=<optimized out>) at ./gui/ksysguard.cpp:627
#34 0x00007ff75dd80b97 in __libc_start_main (main=0x559a58327720 <main>, argc=1, argv=0x7fff6f1c6e18, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff6f1c6e08) at ../csu/libc-start.c:310
#35 0x0000559a5832775a in _start ()

Possible duplicates by query: bug 412868, bug 411325, bug 410586, bug 409981, bug 409057.

Reported using DrKonqi