https://bugs.kde.org/show_bug.cgi?id=350140
Matt Fagnani <matthew.fagn...@utoronto.ca> changed:
What |Removed |Added
----------------------------------------------------------------------------
CC| |matthew.fagn...@utoronto.ca
--- Comment #16 from Matt Fagnani <matthew.fagn...@utoronto.ca> ---
I've seen four crashes in ksysguard 5.13.5 in Fedora 28-29 since Oct 7 with Qt
5.11.1 in the coredumpctl and journal messages. I think these crashes occurred
when I closed ksysguard because I didn't see ksysguard close unusually and the
KDE Crash reporter didn't appear. The crashes occurred less than 10% of the
time I used ksysguard since Oct 7.
The last such crash had a core dump with a segmentation fault in
QLabelPrivate::clearContents at widgets/qlabel.cpp:1302 "delete picture;" in
libQt5Widgets.so.5. The crash had a similar trace to that in comment 13 by
Christoph Feck. The coredumpctl debug and gdb output with ksysguard,
libksysguard, qt5-qtcore, qt5-qtcore-gui, glibc, glib debug packages installed
was the following.
coredumpctl debug 2847
PID: 2847 (ksysguard)
UID: 1000 (matt)
GID: 1000 (matt)
Signal: 11 (SEGV)
Timestamp: Wed 2018-10-17 19:44:58 EDT (1 day 2h ago)
Command Line: /usr/bin/ksysguard
Executable: /usr/bin/ksysguard
Control Group: /user.slice/user-1000.slice/session-2.scope
Unit: session-2.scope
Slice: user-1000.slice
Session: 2
Owner UID: 1000 (matt)
Boot ID: 4b0c8f1e60174a9582401f273cba6db9
Machine ID: 68c534516091436b931b8f2dd87b8100
Hostname: dimension
Storage:
/var/lib/systemd/coredump/core.ksysguard.1000.4b0c8f1e60174a9582401f273cba6db9.2847.1539819898000000.lz4
Message: Process 2847 (ksysguard) of user 1000 dumped core.
Stack trace of thread 2847:
#0 0x00000000b69343bd _ZN13QLabelPrivate13clearContentsEv
(libQt5Widgets.so.5)
#1 0x00000000b6935045 _ZN6QLabel7setTextERK7QString
(libQt5Widgets.so.5)
#2 0x00000000b7f5a49c n/a (libkdeinit5_ksysguard.so)
#3 0x00000000b75dd925
_ZN5KSGRD11SensorAgent13processAnswerEPKci (libksgrd.so.7)
#4 0x00000000b75e4e8e n/a (libksgrd.so.7)
#5 0x00000000b5eb13f4
_ZN9QtPrivate15QSlotObjectBase4callEP7QObjectPPv (libQt5Core.so.5)
#6 0x00000000b5eb1901
_ZN11QMetaObject8activateEP7QObjectPKS_iPPv (libQt5Core.so.5)
#7 0x00000000b5e1e855
_ZN8QProcess23readyReadStandardOutputENS_14QPrivateSignalE (libQt5Core.so.5)
#8 0x00000000b5e2400b
_ZN15QProcessPrivate18tryReadFromChannelEPNS_7ChannelE (libQt5Core.so.5)
#9 0x00000000b5e245e7
_ZN15QProcessPrivate24_q_canReadStandardOutputEv (libQt5Core.so.5)
#10 0x00000000b5eb12c6 _ZN11QMetaObject8activateEP7QObjectiiPPv
(libQt5Core.so.5)
#11 0x00000000b5eb1901
_ZN11QMetaObject8activateEP7QObjectPKS_iPPv (libQt5Core.so.5)
#12 0x00000000b5ebd45a
_ZN15QSocketNotifier9activatedEiNS_14QPrivateSignalE (libQt5Core.so.5)
#13 0x00000000b5ebd822 _ZN15QSocketNotifier5eventEP6QEvent
(libQt5Core.so.5)
#14 0x00000000b67e5d1a
_ZN19QApplicationPrivate13notify_helperEP7QObjectP6QEvent (libQt5Widgets.so.5)
#15 0x00000000b67eddc9
_ZN12QApplication6notifyEP7QObjectP6QEvent (libQt5Widgets.so.5)
#16 0x00000000b5e866e6
_ZN16QCoreApplication15notifyInternal2EP7QObjectP6QEvent (libQt5Core.so.5)
#17 0x00000000b5ede4b4
_ZN16QCoreApplication9sendEventEP7QObjectP6QEvent (libQt5Core.so.5)
#18 0x00000000afecf5c5 g_main_dispatch (libglib-2.0.so.0)
#19 0x00000000afecf9a9 g_main_context_iterate
(libglib-2.0.so.0)
#20 0x00000000afecfa5b g_main_context_iteration
(libglib-2.0.so.0)
#21 0x00000000b5edda2d
_ZN20QEventDispatcherGlib13processEventsE6QFlagsIN10QEventLoop17ProcessEventsFlagEE
(libQt5Core.so.5)
#22 0x00000000ad2af697
_ZN22QPAEventDispatcherGlib13processEventsE6QFlagsIN10QEventLoop17ProcessEventsFlagEE
(libQt5XcbQpa.so.5)
#23 0x00000000b5e853df
_ZN10QEventLoop4execE6QFlagsINS_17ProcessEventsFlagEE (libQt5Core.so.5)
#24 0x00000000b5e8dc62 _ZN16QCoreApplication4execEv
(libQt5Core.so.5)
#25 0x00000000b622a325 _ZN15QGuiApplication4execEv
(libQt5Gui.so.5)
#26 0x00000000b67e5c88 _ZN12QApplication4execEv
(libQt5Widgets.so.5)
#27 0x00000000b7f5c03c kdemain (libkdeinit5_ksysguard.so)
#28 0x00000000004230cb n/a (ksysguard)
#29 0x00000000b5834c09 __libc_start_main (libc.so.6)
#30 0x0000000000423109 _start (ksysguard)
...
Core was generated by `/usr/bin/ksysguard'.
Program terminated with signal SIGSEGV, Segmentation fault.
#0 0xb69343bd in QLabelPrivate::clearContents (this=0xe2af28)
at widgets/qlabel.cpp:1302
1302 delete picture;
[Current thread is 1 (Thread 0xae2a9840 (LWP 2847))]
...
(gdb) bt full
#0 0xb69343bd in QLabelPrivate::clearContents() (this=0xe2af28)
at widgets/qlabel.cpp:1302
q = <optimized out>
#1 0xb6935045 in QLabel::setText(QString const&) (this=0xeaa200, text=...)
at widgets/qlabel.cpp:293
d = 0xe2af28
oldControl = 0x2
#2 0xb7f5a49c in TopLevel::answerReceived(int, QList<QByteArray> const&)
(this=0xe2bae0, id=1, answerList=...)
at /usr/src/debug/ksysguard-5.13.5-1.fc29.i386/gui/ksysguard.cpp:450
percent = <optimized out>
answer = {d = 0xea9710}
s = {static null = {<No data fields>}, d = 0xee9410}
unit = {static null = {<No data fields>}, d = 0xecbed0}
mFree = 107812
mUsedApplication = 719096
mUsedTotal = 1174492
sFree = 2518012
#3 0xb75dd925 in KSGRD::SensorAgent::processAnswer(char const*, int)
(this=0xe8ab70, buf=0x117a1d0 "0.000000\nksysguardd> 105580\nksysguardd>
1176724\nksysguardd> 719880\nksysguardd> 2518012\nksysguardd>
107520\nksysguardd> 0.000000\nksysguardd> 0.000000\nksysguardd>
0.000000\nksysguardd> 0.000000\nksysguardd"..., buflen=618)
at /usr/src/debug/libksysguard-5.13.5-1.fc29.i386/ksgrd/SensorAgent.cpp:91
answer = {d = 0xea9710}
req = 0x11337f0
i = <optimized out>
--Type <RET> for more, q to quit, c to continue without paging--
buffer = {d = 0x10800a0}
startOfAnswer = <optimized out>
#4 0xb75e4e8e in KSGRD::SensorShellAgent::msgRcvd() (this=0xe8ab70)
at /usr/include/qt5/QtCore/qarraydata.h:206
buffer = {d = 0x117a1c0}
#5 0xb5eb13f4 in QtPrivate::QSlotObjectBase::call(QObject*, void**)
(a=0xbfc4b064, r=0xe8ab70, this=0xe93c10)
at ../../include/QtCore/../../src/corelib/kernel/qobjectdefs_impl.h:376
obj = {d = 0xe93c10}
receiver = 0xe8ab70
receiverInSameThread = <optimized out>
sw =
{receiver = 0xe8ab70, previousSender = 0x0, currentSender = {sender =
0xe93e00, signal = 15, ref = 1}, switched = true}
c = 0xea8740
last = 0xea8740
locker = {val = 3054807932}
connectionLists = {connectionLists = 0xe59df0}
list = <optimized out>
currentThreadId = 0xae2a9840
signal_index = 15
empty_argv = {0x0}
#6 0xb5eb13f4 in QMetaObject::activate(QObject*, int, int, void**)
(sender=<optimized out>, signalOffset=<optimized out>,
local_signal_index=<optimized out>, argv=<optimized out>) at
kernel/qobject.cpp:3754
obj = {d = 0xe93c10}
receiver = 0xe8ab70
--Type <RET> for more, q to quit, c to continue without paging--
receiverInSameThread = <optimized out>
sw =
{receiver = 0xe8ab70, previousSender = 0x0, currentSender = {sender =
0xe93e00, signal = 15, ref = 1}, switched = true}
c = 0xea8740
last = 0xea8740
locker = {val = 3054807932}
connectionLists = {connectionLists = 0xe59df0}
list = <optimized out>
currentThreadId = 0xae2a9840
signal_index = 15
empty_argv = {0x0}
#7 0xb5eb1901 in QMetaObject::activate(QObject*, QMetaObject const*, int,
void**)
(sender=0xe93e00, m=0xb6144a4c <QProcess::staticMetaObject>,
local_signal_index=6, argv=0xbfc4b064) at kernel/qobject.cpp:3633
#8 0xb5e1e855 in QProcess::readyReadStandardOutput(QProcess::QPrivateSignal) (
this=0xe93e00, _t1=...) at .moc/moc_qprocess.cpp:362
_a = {0x0, 0xbfc4b084}
#9 0xb5e2400b in
QProcessPrivate::tryReadFromChannel(QProcessPrivate::Channel*)
(this=<optimized out>, channel=<optimized out>) at io/qprocess.cpp:1070
q = 0xe93e00
available = <optimized out>
channelIdx = QProcess::StandardOutput
readBuffer =
@0xe59c00: {buffers = {d = 0xee9d90}, bufferSize = 0, basicBlockSize
= 4096}
ptr = <optimized out>
--Type <RET> for more, q to quit, c to continue without paging--c
readBytes = <optimized out>
didRead = true
#10 0xb5e245e7 in QProcessPrivate::_q_canReadStandardOutput() (this=<optimized
out>) at io/qprocess.cpp:1081
_r = <optimized out>
_t = 0xe93e00
#11 0xb5e245e7 in QProcess::qt_static_metacall(QObject*, QMetaObject::Call,
int, void**) (_o=0xe93e00, _c=QMetaObject::InvokeMetaMethod, _id=10,
_a=0xbfc4b1e0) at .moc/moc_qprocess.cpp:207
_r = <optimized out>
_t = 0xe93e00
#12 0xb5eb12c6 in QMetaObject::activate(QObject*, int, int, void**)
(sender=<optimized out>, signalOffset=<optimized out>,
local_signal_index=<optimized out>, argv=<optimized out>) at
kernel/qobject.cpp:3771
methodIndex = <optimized out>
method_relative = 10
callFunction = 0xb5e24370 <QProcess::qt_static_metacall(QObject*,
QMetaObject::Call, int, void**)>
receiver = 0xe93e00
receiverInSameThread = <optimized out>
sw = {receiver = 0xe93e00, previousSender = 0x0, currentSender =
{sender = 0xe8a8a0, signal = 3, ref = 1}, switched = true}
c = 0xed73e0
last = 0xed73e0
locker = {val = 3054807944}
connectionLists = {connectionLists = 0xee5b40}
list = <optimized out>
currentThreadId = 0xae2a9840
signal_index = 3
empty_argv = {0x0}
#13 0xb5eb1901 in QMetaObject::activate(QObject*, QMetaObject const*, int,
void**) (sender=0xe8a8a0, m=0xb6145948 <QSocketNotifier::staticMetaObject>,
local_signal_index=0, argv=0xbfc4b1e0) at kernel/qobject.cpp:3633
#14 0xb5ebd45a in QSocketNotifier::activated(int,
QSocketNotifier::QPrivateSignal) (this=0xe8a8a0, _t1=<optimized out>, _t2=...)
at .moc/moc_qsocketnotifier.cpp:136
_a = {0x0, 0xbfc4b204, 0xbfc4b208}
#15 0xb5ebd822 in QSocketNotifier::event(QEvent*) (this=0xe8a8a0, e=0xbfc4b430)
at kernel/qsocketnotifier.cpp:266
d = 0xea7ff0
#16 0xb67e5d1a in QApplicationPrivate::notify_helper(QObject*, QEvent*)
(this=0xd59800, receiver=0xe8a8a0, e=0xbfc4b430) at
kernel/qapplication.cpp:3727
consumed = <optimized out>
#17 0xb67eddc9 in QApplication::notify(QObject*, QEvent*) () at
kernel/qapplication.cpp:3486
#18 0xb5e866e6 in QCoreApplication::notifyInternal2(QObject*, QEvent*)
(receiver=0xe8a8a0, event=0xbfc4b430) at kernel/qcoreapplication.cpp:1048
selfRequired = <optimized out>
result = false
cbdata = {0xe8a8a0, 0xbfc4b430, 0xbfc4b3df}
d = <optimized out>
threadData = 0xbfc4b430
scopeLevelCounter = {threadData = 0xbfc4b430}
#19 0xb5ede4b4 in QCoreApplication::sendEvent(QObject*, QEvent*)
(event=0xbfc4b430, receiver=<optimized out>) at
../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:234
p = <optimized out>
i = 2
event = {_vptr.QEvent = 0xb6145644 <vtable for QEvent+8>, static
staticMetaObject = {d = {superdata = 0x0, stringdata = 0xb6020960
<qt_meta_stringdata_QEvent>, data = 0xb60203a0 <qt_meta_data_QEvent>,
static_metacall = 0x0, relatedMetaObjects = 0x0, extradata = 0x0}}, d = 0x0, t
= 50, posted = 0, spont = 0, m_accept = 1, reserved = 5826}
#20 0xb5ede4b4 in socketNotifierSourceDispatch(GSource*, GSourceFunc, gpointer)
(source=0xdeb880) at kernel/qeventdispatcher_glib.cpp:106
p = <optimized out>
i = 2
event = {_vptr.QEvent = 0xb6145644 <vtable for QEvent+8>, static
staticMetaObject = {d = {superdata = 0x0, stringdata = 0xb6020960
<qt_meta_stringdata_QEvent>, data = 0xb60203a0 <qt_meta_data_QEvent>,
static_metacall = 0x0, relatedMetaObjects = 0x0, extradata = 0x0}}, d = 0x0, t
= 50, posted = 0, spont = 0, m_accept = 1, reserved = 5826}
#21 0xafecf5c5 in g_main_dispatch (context=0xac8049d0) at gmain.c:3182
dispatch = <optimized out>
prev_source = 0x0
was_in_call = 0
user_data = 0x0
callback = 0x0
cb_funcs = 0x0
cb_data = 0x0
need_destroy = <optimized out>
source = 0xdeb880
current = 0xd57648
i = 1
__func__ = "g_main_dispatch"
#22 0xafecf5c5 in g_main_context_dispatch (context=0xac8049d0) at gmain.c:3847
#23 0xafecf9a9 in g_main_context_iterate (context=context@entry=0xac8049d0,
block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at
gmain.c:3920
max_priority = 0
timeout = 0
some_ready = 1
nfds = 6
allocated_nfds = <optimized out>
fds = <optimized out>
#24 0xafecfa5b in g_main_context_iteration (context=0xac8049d0, may_block=1) at
gmain.c:3981
retval = <optimized out>
#25 0xb5edda2d in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>)
(this=0xdeb280, flags=...) at kernel/qeventdispatcher_glib.cpp:423
d = 0xdebc40
canWait = true
savedFlags = {i = 0}
result = <optimized out>
#26 0xad2af697 in
QPAEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>)
(this=0xdeb280, flags=...) at qeventdispatcher_glib.cpp:69
didSendEvents = <optimized out>
#27 0xb5e853df in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>)
(this=<optimized out>, flags=...) at
../../include/QtCore/../../src/corelib/global/qflags.h:140
d = 0x10c85f0
locker = {val = 13977648}
ref = {d = 0x10c85f0, locker = @0xbfc4b5c4, exceptionCaught = true}
app = <optimized out>
#28 0xb5e8dc62 in QCoreApplication::exec() () at
../../include/QtCore/../../src/corelib/global/qflags.h:120
threadData = 0xd54790
eventLoop = {<QObject> = {_vptr.QObject = 0xb6145530 <vtable for
QEventLoop+8>, static staticMetaObject = {d = {superdata = 0x0, stringdata =
0xb6023d20 <qt_meta_stringdata_QObject>, data = 0xb6023c00
<qt_meta_data_QObject>, static_metacall = 0xb5eb8b60
<QObject::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>,
relatedMetaObjects = 0x0, extradata = 0x0}}, d_ptr = {d = 0x10c85f0}, static
staticQtMetaObject = {d = {superdata = 0x0, stringdata = 0xb6026aa0
<qt_meta_stringdata_Qt>, data = 0xb6023e00 <qt_meta_data_Qt>, static_metacall =
0x0, relatedMetaObjects = 0x0, extradata = 0x0}}}, static staticMetaObject = {d
= {superdata = 0xb6140a24 <QObject::staticMetaObject>, stringdata = 0xb601ffa0
<qt_meta_stringdata_QEventLoop>, data = 0xb601ff40 <qt_meta_data_QEventLoop>,
static_metacall = 0xb5e85070 <QEventLoop::qt_static_metacall(QObject*,
QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}}
returnCode = <optimized out>
#29 0xb622a325 in QGuiApplication::exec() () at kernel/qguiapplication.cpp:1761
#30 0xb67e5c88 in QApplication::exec() () at kernel/qapplication.cpp:2901
#31 0xb7f5c03c in kdemain(int, char**) (argc=<optimized out>, argv=0xbfc4b7e4)
at /usr/src/debug/ksysguard-5.13.5-1.fc29.i386/gui/ksysguard.cpp:609
app = {<QGuiApplication> = {<QCoreApplication> = {<QObject> =
{_vptr.QObject = 0xb6df6cd8 <vtable for QApplication+8>, static
staticMetaObject = {d = {superdata = 0x0, stringdata = 0xb6023d20
<qt_meta_stringdata_QObject>, data = 0xb6023c00 <qt_meta_data_QObject>,
static_metacall = 0xb5eb8b60 <QObject::qt_static_metacall(QObject*,
QMetaObject::Call, int, void**)>, relatedMetaObjects = 0x0, extradata = 0x0}},
d_ptr = {d = 0xd59800}, static staticQtMetaObject = {d = {superdata = 0x0,
stringdata = 0xb6026aa0 <qt_meta_stringdata_Qt>, data = 0xb6023e00
<qt_meta_data_Qt>, static_metacall = 0x0, relatedMetaObjects = 0x0, extradata =
0x0}}}, static staticMetaObject = {d = {superdata = 0xb6140a24
<QObject::staticMetaObject>, stringdata = 0xb6020160
<qt_meta_stringdata_QCoreApplication>, data = 0xb6020040
<qt_meta_data_QCoreApplication>, static_metacall = 0xb5e88370
<QCoreApplication::qt_static_metacall(QObject*, QMetaObject::Call, int,
void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}, static self =
0xbfc4b6e8}, static staticMetaObject = {d = {superdata = 0xb61455ec
<QCoreApplication::staticMetaObject>, stringdata = 0xb6584680
<qt_meta_stringdata_QGuiApplication>, data = 0xb6584400
<qt_meta_data_QGuiApplication>, static_metacall = 0xb6237300
<QGuiApplication::qt_static_metacall(QObject*, QMetaObject::Call, int,
void**)>, relatedMetaObjects = 0x0, extradata = 0x0}}}, static staticMetaObject
= {d = {superdata = 0xb66e6068 <QGuiApplication::staticMetaObject>, stringdata
= 0xb6bcec80 <qt_meta_stringdata_QApplication>, data = 0xb6bceb00
<qt_meta_data_QApplication>, static_metacall = 0xb67eb180
<QApplication::qt_static_metacall(QObject*, QMetaObject::Call, int, void**)>,
relatedMetaObjects = 0x0, extradata = 0x0}}}
aboutData = {d = 0xdf4160}
parser = {d = 0xe28eb0}
dbusService = <incomplete type>
result = <optimized out>
#32 0x004230cb in main ()
The other three crashes didn't produce core dumps which are still available.
The following crash had a trace which was similar if not the same as the one
above.
coredumpctl debug 10637
PID: 10637 (ksysguard)
UID: 1000 (matt)
GID: 1000 (matt)
Signal: 11 (SEGV)
Timestamp: Mon 2018-10-08 00:50:33 EDT (1 weeks 3 days ago)
Command Line: /usr/bin/ksysguard
Executable: /usr/bin/ksysguard
Control Group: /user.slice/user-1000.slice/session-9.scope
Unit: session-9.scope
Slice: user-1000.slice
Session: 9
Owner UID: 1000 (matt)
Boot ID: d6f408ae754a4f068fa55f1b3c90a6c4
Machine ID: 68c534516091436b931b8f2dd87b8100
Hostname: dimension
Storage:
/var/lib/systemd/coredump/core.ksysguard.1000.d6f408ae754a4f068fa55f1b3c90a6c4.10637.1538974233000000.lz4
(inaccessible)
Message: Process 10637 (ksysguard) of user 1000 dumped core.
Stack trace of thread 10637:
#0 0x00000000b68cb34a _ZN13QLabelPrivate13clearContentsEv
(libQt5Widgets.so.5)
#1 0x00000000b68cbfd5 _ZN6QLabel7setTextERK7QString
(libQt5Widgets.so.5)
#2 0x00000000b7eab119
_ZN8TopLevel14answerReceivedEiRK5QListI10QByteArrayE (libkdeinit5_ksysguard.so)
#3 0x00000000b7574ad5
_ZN5KSGRD11SensorAgent13processAnswerEPKci (libksgrd.so.7)
#4 0x00000000b757c03e _ZN5KSGRD16SensorShellAgent7msgRcvdEv
(libksgrd.so.7)
#5 0x00000000b5e54d64 _ZN11QMetaObject8activateEP7QObjectiiPPv
(libQt5Core.so.5)
#6 0x00000000b5e55271
_ZN11QMetaObject8activateEP7QObjectPKS_iPPv (libQt5Core.so.5)
#7 0x00000000b5dc2125
_ZN8QProcess23readyReadStandardOutputENS_14QPrivateSignalE (libQt5Core.so.5)
#8 0x00000000b5dc78dd
_ZN15QProcessPrivate18tryReadFromChannelEPNS_7ChannelE (libQt5Core.so.5)
#9 0x00000000b5dc7eb7
_ZN8QProcess18qt_static_metacallEP7QObjectN11QMetaObject4CallEiPPv
(libQt5Core.so.5)
#10 0x00000000b5e54c36 _ZN11QMetaObject8activateEP7QObjectiiPPv
(libQt5Core.so.5)
#11 0x00000000b5e55271
_ZN11QMetaObject8activateEP7QObjectPKS_iPPv (libQt5Core.so.5)
#12 0x00000000b5e60dca
_ZN15QSocketNotifier9activatedEiNS_14QPrivateSignalE (libQt5Core.so.5)
#13 0x00000000b5e61192 _ZN15QSocketNotifier5eventEP6QEvent
(libQt5Core.so.5)
#14 0x00000000b678122a
_ZN19QApplicationPrivate13notify_helperEP7QObjectP6QEvent (libQt5Widgets.so.5)
#15 0x00000000b6789279
_ZN12QApplication6notifyEP7QObjectP6QEvent (libQt5Widgets.so.5)
#16 0x00000000b5e2a0a6
_ZN16QCoreApplication15notifyInternal2EP7QObjectP6QEvent (libQt5Core.so.5)
#17 0x00000000b5e81fa4
_ZL28socketNotifierSourceDispatchP8_GSourcePFiPvES1_ (libQt5Core.so.5)
#18 0x00000000afe53855 g_main_context_dispatch
(libglib-2.0.so.0)
#19 0x00000000afe53c41 g_main_context_iterate.isra.20
(libglib-2.0.so.0)
#20 0x00000000afe53ceb g_main_context_iteration
(libglib-2.0.so.0)
#21 0x00000000b5e8151d
_ZN20QEventDispatcherGlib13processEventsE6QFlagsIN10QEventLoop17ProcessEventsFlagEE
(libQt5Core.so.5)
#22 0x00000000ad0aea97
_ZN22QPAEventDispatcherGlib13processEventsE6QFlagsIN10QEventLoop17ProcessEventsFlagEE
(libQt5XcbQpa.so.5)
#23 0x00000000b5e28d9f
_ZN10QEventLoop4execE6QFlagsINS_17ProcessEventsFlagEE (libQt5Core.so.5)
#24 0x00000000b5e31622 _ZN16QCoreApplication4execEv
(libQt5Core.so.5)
#25 0x00000000b61c8785 _ZN15QGuiApplication4execEv
(libQt5Gui.so.5)
#26 0x00000000b6781198 _ZN12QApplication4execEv
(libQt5Widgets.so.5)
#27 0x00000000b7eaccbc kdemain (libkdeinit5_ksysguard.so)
#28 0x000000000040589b main (ksysguard)
#29 0x00000000b57b40d1 __libc_start_main (libc.so.6)
#30 0x00000000004058d9 _start (ksysguard)
File
"/var/lib/systemd/coredump/core.ksysguard.1000.d6f408ae754a4f068fa55f1b3c90a6c4.10637.1538974233000000.lz4"
is not readable: No such file or directory
The other two crashes had traces which were similar if not the same as each
other's but different from those above. All four crashes contained
#1 ... _ZN6QLabel7setTextERK7QString (libQt5Widgets.so.5)
That function QLabel::setText at widgets/qlabel.cpp:293 might be a common
factor in the crashes. All four crashes involved
#2 ... libkdeinit5_ksysguard.so
#3 ... libksgrd.so.7
#4 ... libksgrd.so.7
#5 ... libQt5Core.so.5
...
coredumpctl debug 3638
PID: 3638 (ksysguard)
UID: 1000 (matt)
GID: 1000 (matt)
Signal: 11 (SEGV)
Timestamp: Wed 2018-10-10 22:31:17 EDT (1 weeks 1 days ago)
Command Line: /usr/bin/ksysguard
Executable: /usr/bin/ksysguard
Control Group: /user.slice/user-1000.slice/session-2.scope
Unit: session-2.scope
Slice: user-1000.slice
Session: 2
Owner UID: 1000 (matt)
Boot ID: fcc0d31c04284b719ee24c3a07046eaa
Machine ID: 68c534516091436b931b8f2dd87b8100
Hostname: dimension
Storage:
/var/lib/systemd/coredump/core.ksysguard.1000.fcc0d31c04284b719ee24c3a07046eaa.3638.1539225077000000.lz4
(inaccessible)
Message: Process 3638 (ksysguard) of user 1000 dumped core.
Stack trace of thread 3638:
#0 0x00000000b5c8b172 _ZeqRK7QStringS1_ (libQt5Core.so.5)
#1 0x00000000b686efff _ZN6QLabel7setTextERK7QString
(libQt5Widgets.so.5)
#2 0x00000000b7e9449c n/a (libkdeinit5_ksysguard.so)
#3 0x00000000b7517925
_ZN5KSGRD11SensorAgent13processAnswerEPKci (libksgrd.so.7)
#4 0x00000000b751ee8e n/a (libksgrd.so.7)
#5 0x00000000b5deb3f4 _ZN11QMetaObject8activateEP7QObjectiiPPv
(libQt5Core.so.5)
#6 0x00000000b5deb901
_ZN11QMetaObject8activateEP7QObjectPKS_iPPv (libQt5Core.so.5)
#7 0x00000000b5d58855
_ZN8QProcess23readyReadStandardOutputENS_14QPrivateSignalE (libQt5Core.so.5)
#8 0x00000000b5d5e00b
_ZN15QProcessPrivate18tryReadFromChannelEPNS_7ChannelE (libQt5Core.so.5)
#9 0x00000000b5d5e5e7
_ZN8QProcess18qt_static_metacallEP7QObjectN11QMetaObject4CallEiPPv
(libQt5Core.so.5)
#10 0x00000000b5deb2c6 _ZN11QMetaObject8activateEP7QObjectiiPPv
(libQt5Core.so.5)
#11 0x00000000b5deb901
_ZN11QMetaObject8activateEP7QObjectPKS_iPPv (libQt5Core.so.5)
#12 0x00000000b5df745a
_ZN15QSocketNotifier9activatedEiNS_14QPrivateSignalE (libQt5Core.so.5)
#13 0x00000000b5df7822 _ZN15QSocketNotifier5eventEP6QEvent
(libQt5Core.so.5)
#14 0x00000000b671fd1a
_ZN19QApplicationPrivate13notify_helperEP7QObjectP6QEvent (libQt5Widgets.so.5)
#15 0x00000000b6727dc9
_ZN12QApplication6notifyEP7QObjectP6QEvent (libQt5Widgets.so.5)
#16 0x00000000b5dc06e6
_ZN16QCoreApplication15notifyInternal2EP7QObjectP6QEvent (libQt5Core.so.5)
#17 0x00000000b5e184b4
_ZL28socketNotifierSourceDispatchP8_GSourcePFiPvES1_ (libQt5Core.so.5)
#18 0x00000000afe095c5 g_main_context_dispatch
(libglib-2.0.so.0)
#19 0x00000000afe099a9 n/a (libglib-2.0.so.0)
#20 0x00000000afe09a5b g_main_context_iteration
(libglib-2.0.so.0)
#21 0x00000000b5e17a2d
_ZN20QEventDispatcherGlib13processEventsE6QFlagsIN10QEventLoop17ProcessEventsFlagEE
(libQt5Core.so.5)
#22 0x00000000ad8da697
_ZN22QPAEventDispatcherGlib13processEventsE6QFlagsIN10QEventLoop17ProcessEventsFlagEE
(libQt5XcbQpa.so.5)
#23 0x00000000b5dbf3df
_ZN10QEventLoop4execE6QFlagsINS_17ProcessEventsFlagEE (libQt5Core.so.5)
#24 0x00000000b5dc7c62 _ZN16QCoreApplication4execEv
(libQt5Core.so.5)
#25 0x00000000b6164325 _ZN15QGuiApplication4execEv
(libQt5Gui.so.5)
#26 0x00000000b671fc88 _ZN12QApplication4execEv
(libQt5Widgets.so.5)
#27 0x00000000b7e9603c kdemain (libkdeinit5_ksysguard.so)
#28 0x000000000048e0cb n/a (ksysguard)
#29 0x00000000b576ec09 __libc_start_main (libc.so.6)
#30 0x000000000048e109 _start (ksysguard)
coredumpctl debug 4701
PID: 4701 (ksysguard)
UID: 1000 (matt)
GID: 1000 (matt)
Signal: 11 (SEGV)
Timestamp: Sun 2018-10-07 20:08:07 EDT (1 weeks 4 days ago)
Command Line: /usr/bin/ksysguard
Executable: /usr/bin/ksysguard
Control Group: /user.slice/user-1000.slice/session-2.scope
Unit: session-2.scope
Slice: user-1000.slice
Session: 2
Owner UID: 1000 (matt)
Boot ID: d6f408ae754a4f068fa55f1b3c90a6c4
Machine ID: 68c534516091436b931b8f2dd87b8100
Hostname: dimension
Storage:
/var/lib/systemd/coredump/core.ksysguard.1000.d6f408ae754a4f068fa55f1b3c90a6c4.4701.1538957287000000.lz4
(inaccessible)
Message: Process 4701 (ksysguard) of user 1000 dumped core.
Stack trace of thread 4701:
#0 0x00000000b5d1c2ef _ZeqRK7QStringS1_ (libQt5Core.so.5)
#1 0x00000000b68f2f8f _ZN6QLabel7setTextERK7QString
(libQt5Widgets.so.5)
#2 0x00000000b7ed2119
_ZN8TopLevel14answerReceivedEiRK5QListI10QByteArrayE (libkdeinit5_ksysguard.so)
#3 0x00000000b759bad5
_ZN5KSGRD11SensorAgent13processAnswerEPKci (libksgrd.so.7)
#4 0x00000000b75a303e _ZN5KSGRD16SensorShellAgent7msgRcvdEv
(libksgrd.so.7)
#5 0x00000000b5e7bd64 _ZN11QMetaObject8activateEP7QObjectiiPPv
(libQt5Core.so.5)
#6 0x00000000b5e7c271
_ZN11QMetaObject8activateEP7QObjectPKS_iPPv (libQt5Core.so.5)
#7 0x00000000b5de9125
_ZN8QProcess23readyReadStandardOutputENS_14QPrivateSignalE (libQt5Core.so.5)
#8 0x00000000b5dee8dd
_ZN15QProcessPrivate18tryReadFromChannelEPNS_7ChannelE (libQt5Core.so.5)
#9 0x00000000b5deeeb7
_ZN8QProcess18qt_static_metacallEP7QObjectN11QMetaObject4CallEiPPv
(libQt5Core.so.5)
#10 0x00000000b5e7bc36 _ZN11QMetaObject8activateEP7QObjectiiPPv
(libQt5Core.so.5)
#11 0x00000000b5e7c271
_ZN11QMetaObject8activateEP7QObjectPKS_iPPv (libQt5Core.so.5)
#12 0x00000000b5e87dca
_ZN15QSocketNotifier9activatedEiNS_14QPrivateSignalE (libQt5Core.so.5)
#13 0x00000000b5e88192 _ZN15QSocketNotifier5eventEP6QEvent
(libQt5Core.so.5)
#14 0x00000000b67a822a
_ZN19QApplicationPrivate13notify_helperEP7QObjectP6QEvent (libQt5Widgets.so.5)
#15 0x00000000b67b0279
_ZN12QApplication6notifyEP7QObjectP6QEvent (libQt5Widgets.so.5)
#16 0x00000000b5e510a6
_ZN16QCoreApplication15notifyInternal2EP7QObjectP6QEvent (libQt5Core.so.5)
#17 0x00000000b5ea8fa4
_ZL28socketNotifierSourceDispatchP8_GSourcePFiPvES1_ (libQt5Core.so.5)
#18 0x00000000afe7a855 g_main_context_dispatch
(libglib-2.0.so.0)
#19 0x00000000afe7ac41 g_main_context_iterate.isra.20
(libglib-2.0.so.0)
#20 0x00000000afe7aceb g_main_context_iteration
(libglib-2.0.so.0)
#21 0x00000000b5ea851d
_ZN20QEventDispatcherGlib13processEventsE6QFlagsIN10QEventLoop17ProcessEventsFlagEE
(libQt5Core.so.5)
#22 0x00000000ad0aea97
_ZN22QPAEventDispatcherGlib13processEventsE6QFlagsIN10QEventLoop17ProcessEventsFlagEE
(libQt5XcbQpa.so.5)
#23 0x00000000b5e4fd9f
_ZN10QEventLoop4execE6QFlagsINS_17ProcessEventsFlagEE (libQt5Core.so.5)
#24 0x00000000b5e58622 _ZN16QCoreApplication4execEv
(libQt5Core.so.5)
#25 0x00000000b61ef785 _ZN15QGuiApplication4execEv
(libQt5Gui.so.5)
#26 0x00000000b67a8198 _ZN12QApplication4execEv
(libQt5Widgets.so.5)
#27 0x00000000b7ed3cbc kdemain (libkdeinit5_ksysguard.so)
#28 0x000000000044789b main (ksysguard)
#29 0x00000000b57db0d1 __libc_start_main (libc.so.6)
#30 0x00000000004478d9 _start (ksysguard)
I can provide more information if it would help.
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