https://bugs.kde.org/show_bug.cgi?id=387848
Bug ID: 387848
Summary: Plasmashell crash while trying to unmount optical
media
Product: plasmashell
Version: 5.11.4
Platform: Ubuntu Packages
OS: Linux
Status: UNCONFIRMED
Keywords: drkonqi
Severity: crash
Priority: NOR
Component: general
Assignee: k...@davidedmundson.co.uk
Reporter: l.bonn...@laposte.net
CC: plasma-b...@kde.org
Target Milestone: 1.0
Application: plasmashell (5.11.4)
Qt Version: 5.9.1
Frameworks Version: 5.41.0
Operating System: Linux 4.14.5-041405-generic x86_64
Distribution: Ubuntu 17.10
-- Information about the crash:
- What I was doing when the application crashed:
I was trying to unmount an optical media that had been mounted by root. I got
an authorization window and hit "Cancel".
-- Backtrace:
Application: Plasma (plasmashell), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7faf6a318900 (LWP 12397))]
Thread 8 (Thread 0x7fae9a5b3700 (LWP 13165)):
#0 0x00007faf5e5cb5d4 in g_mutex_unlock (mutex=0x7fae94000be0) at
../../../../glib/gthread-posix.c:1348
#1 0x00007faf5e58615e in g_main_context_poll (priority=<optimized out>,
n_fds=1, fds=0x7fae940029e0, timeout=<optimized out>, context=0x7fae94000be0)
at ../../../../glib/gmain.c:4186
#2 0x00007faf5e58615e in g_main_context_iterate
(context=context@entry=0x7fae94000be0, block=block@entry=1,
dispatch=dispatch@entry=1, self=<optimized out>) at
../../../../glib/gmain.c:3881
#3 0x00007faf5e58627c in g_main_context_iteration (context=0x7fae94000be0,
may_block=may_block@entry=1) at ../../../../glib/gmain.c:3947
#4 0x00007faf6429249b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>)
(this=0x7fae94000b10, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#5 0x00007faf64237e3a in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>)
(this=this@entry=0x7fae9a5b2c70, flags=..., flags@entry=...) at
kernel/qeventloop.cpp:212
#6 0x00007faf640573ca in QThread::exec() (this=<optimized out>) at
thread/qthread.cpp:515
#7 0x00007fae9cbcc747 in KCupsConnection::run() () at
/usr/lib/x86_64-linux-gnu/libkcupslib.so
#8 0x00007faf6405c29d in QThreadPrivate::start(void*) (arg=0x55b96303aa50) at
thread/qthread_unix.cpp:368
#9 0x00007faf631f17fc in start_thread (arg=0x7fae9a5b3700) at
pthread_create.c:465
#10 0x00007faf6395eb0f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95
Thread 7 (Thread 0x7faeaf112700 (LWP 12675)):
#0 0x00007fffa9dba979 in ()
#1 0x00007fffa9dbac30 in clock_gettime ()
#2 0x00007faf6396d946 in __GI___clock_gettime (clock_id=clock_id@entry=1,
tp=tp@entry=0x7faeaf1119b0) at ../sysdeps/unix/clock_gettime.c:115
#3 0x00007faf64291db1 in qt_clock_gettime (ts=0x7faeaf1119b0, clock=<optimized
out>) at kernel/qelapsedtimer_unix.cpp:111
#4 0x00007faf64291db1 in do_gettime (frac=<synthetic pointer>, sec=<synthetic
pointer>) at kernel/qelapsedtimer_unix.cpp:166
#5 0x00007faf64291db1 in qt_gettime() () at kernel/qelapsedtimer_unix.cpp:175
#6 0x00007faf642905e9 in QTimerInfoList::updateCurrentTime()
(this=this@entry=0x7faea8004ce0) at kernel/qtimerinfo_unix.cpp:91
#7 0x00007faf64290bc5 in QTimerInfoList::timerWait(timespec&)
(this=0x7faea8004ce0, tm=...) at kernel/qtimerinfo_unix.cpp:388
#8 0x00007faf6429220e in timerSourcePrepareHelper (timeout=0x7faeaf111a74,
src=<optimized out>) at kernel/qeventdispatcher_glib.cpp:132
#9 0x00007faf6429220e in timerSourcePrepare(GSource*, gint*)
(source=<optimized out>, timeout=timeout@entry=0x7faeaf111a74) at
kernel/qeventdispatcher_glib.cpp:165
#10 0x00007faf5e5856a8 in g_main_context_prepare
(context=context@entry=0x7faea8000be0, priority=priority@entry=0x7faeaf111b00)
at ../../../../glib/gmain.c:3450
#11 0x00007faf5e58609b in g_main_context_iterate
(context=context@entry=0x7faea8000be0, block=block@entry=1,
dispatch=dispatch@entry=1, self=<optimized out>) at
../../../../glib/gmain.c:3866
#12 0x00007faf5e58627c in g_main_context_iteration (context=0x7faea8000be0,
may_block=may_block@entry=1) at ../../../../glib/gmain.c:3947
#13 0x00007faf6429249b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>)
(this=0x7faea8000b10, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#14 0x00007faf64237e3a in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>)
(this=this@entry=0x7faeaf111c40, flags=..., flags@entry=...) at
kernel/qeventloop.cpp:212
#15 0x00007faf640573ca in QThread::exec() (this=<optimized out>) at
thread/qthread.cpp:515
#16 0x00007faf67d4f846 in () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#17 0x00007faf6405c29d in QThreadPrivate::start(void*) (arg=0x55b960f31000) at
thread/qthread_unix.cpp:368
#18 0x00007faf631f17fc in start_thread (arg=0x7faeaf112700) at
pthread_create.c:465
#19 0x00007faf6395eb0f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95
Thread 6 (Thread 0x7faf362c2700 (LWP 12637)):
#0 0x00007faf631f8072 in futex_wait_cancelable (private=<optimized out>,
expected=0, futex_word=0x7faf69d0bfb8 <QTWTF::pageheap_memory+57592>) at
../sysdeps/unix/sysv/linux/futex-internal.h:88
#1 0x00007faf631f8072 in __pthread_cond_wait_common (abstime=0x0,
mutex=0x7faf69d0bf68 <QTWTF::pageheap_memory+57512>, cond=0x7faf69d0bf90
<QTWTF::pageheap_memory+57552>) at pthread_cond_wait.c:502
#2 0x00007faf631f8072 in __pthread_cond_wait (cond=0x7faf69d0bf90
<QTWTF::pageheap_memory+57552>, mutex=0x7faf69d0bf68
<QTWTF::pageheap_memory+57512>) at pthread_cond_wait.c:655
#3 0x00007faf69a17bd4 in QTWTF::TCMalloc_PageHeap::scavengerThread()
(this=0x7faf69cfdec0 <QTWTF::pageheap_memory>) at
../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:2359
#4 0x00007faf69a17c19 in QTWTF::TCMalloc_PageHeap::runScavengerThread(void*)
(context=<optimized out>) at
../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:1464
#5 0x00007faf631f17fc in start_thread (arg=0x7faf362c2700) at
pthread_create.c:465
#6 0x00007faf6395eb0f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95
Thread 5 (Thread 0x7faf4937c700 (LWP 12551)):
#0 0x00007faf6396d14b in __libc_enable_asynccancel () at
../sysdeps/unix/sysv/linux/x86_64/cancellation.S:61
#1 0x00007faf639528ee in __GI___poll (fds=0x7faf38002de0, nfds=1, timeout=-1)
at ../sysdeps/unix/sysv/linux/poll.c:29
#2 0x00007faf5e586169 in g_main_context_poll (priority=<optimized out>,
n_fds=1, fds=0x7faf38002de0, timeout=<optimized out>, context=0x7faf38000be0)
at ../../../../glib/gmain.c:4187
#3 0x00007faf5e586169 in g_main_context_iterate
(context=context@entry=0x7faf38000be0, block=block@entry=1,
dispatch=dispatch@entry=1, self=<optimized out>) at
../../../../glib/gmain.c:3881
#4 0x00007faf5e58627c in g_main_context_iteration (context=0x7faf38000be0,
may_block=may_block@entry=1) at ../../../../glib/gmain.c:3947
#5 0x00007faf6429249b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>)
(this=0x7faf38000b10, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#6 0x00007faf64237e3a in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>)
(this=this@entry=0x7faf4937bc90, flags=..., flags@entry=...) at
kernel/qeventloop.cpp:212
#7 0x00007faf640573ca in QThread::exec() (this=<optimized out>) at
thread/qthread.cpp:515
#8 0x00007faf671bbf45 in () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#9 0x00007faf6405c29d in QThreadPrivate::start(void*) (arg=0x55b960714860) at
thread/qthread_unix.cpp:368
#10 0x00007faf631f17fc in start_thread (arg=0x7faf4937c700) at
pthread_create.c:465
#11 0x00007faf6395eb0f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95
Thread 4 (Thread 0x7faf4b5ef700 (LWP 12470)):
#0 0x00007faf5e5cb5d4 in g_mutex_unlock (mutex=0x7faf40000be0) at
../../../../glib/gthread-posix.c:1348
#1 0x00007faf5e58601d in g_main_context_iterate
(context=context@entry=0x7faf40000be0, block=block@entry=1,
dispatch=dispatch@entry=1, self=<optimized out>) at
../../../../glib/gmain.c:3834
#2 0x00007faf5e58627c in g_main_context_iteration (context=0x7faf40000be0,
may_block=may_block@entry=1) at ../../../../glib/gmain.c:3947
#3 0x00007faf6429249b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>)
(this=0x7faf40000b10, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#4 0x00007faf64237e3a in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>)
(this=this@entry=0x7faf4b5eec90, flags=..., flags@entry=...) at
kernel/qeventloop.cpp:212
#5 0x00007faf640573ca in QThread::exec() (this=<optimized out>) at
thread/qthread.cpp:515
#6 0x00007faf671bbf45 in () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7 0x00007faf6405c29d in QThreadPrivate::start(void*) (arg=0x55b96070e950) at
thread/qthread_unix.cpp:368
#8 0x00007faf631f17fc in start_thread (arg=0x7faf4b5ef700) at
pthread_create.c:465
#9 0x00007faf6395eb0f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95
Thread 3 (Thread 0x7faf51206700 (LWP 12433)):
#0 0x00007faf64053b6f in QMutex::unlock() (this=this@entry=0x55b9606740d0) at
thread/qmutex.cpp:337
#1 0x00007faf642923cf in QMutexLocker::unlock() (this=<synthetic pointer>) at
../../include/QtCore/../../src/corelib/thread/qmutex.h:213
#2 0x00007faf642923cf in QMutexLocker::~QMutexLocker() (this=<synthetic
pointer>, __in_chrg=<optimized out>) at
../../include/QtCore/../../src/corelib/thread/qmutex.h:207
#3 0x00007faf642923cf in QThreadData::canWaitLocked() (this=0x55b9606740a0) at
../../include/QtCore/5.9.1/QtCore/private/../../../../../src/corelib/thread/qthread_p.h:253
#4 0x00007faf642923cf in postEventSourcePrepare(GSource*, gint*)
(s=0x7faf44004b90, timeout=timeout@entry=0x7faf51205ab4) at
kernel/qeventdispatcher_glib.cpp:259
#5 0x00007faf5e5856a8 in g_main_context_prepare
(context=context@entry=0x7faf44000be0, priority=priority@entry=0x7faf51205b40)
at ../../../../glib/gmain.c:3450
#6 0x00007faf5e58609b in g_main_context_iterate
(context=context@entry=0x7faf44000be0, block=block@entry=1,
dispatch=dispatch@entry=1, self=<optimized out>) at
../../../../glib/gmain.c:3866
#7 0x00007faf5e58627c in g_main_context_iteration (context=0x7faf44000be0,
may_block=may_block@entry=1) at ../../../../glib/gmain.c:3947
#8 0x00007faf6429249b in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>)
(this=0x7faf44000b10, flags=...) at kernel/qeventdispatcher_glib.cpp:425
#9 0x00007faf64237e3a in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>)
(this=this@entry=0x7faf51205c80, flags=..., flags@entry=...) at
kernel/qeventloop.cpp:212
#10 0x00007faf640573ca in QThread::exec() (this=this@entry=0x7faf64981d60
<(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at
thread/qthread.cpp:515
#11 0x00007faf6470ee45 in QDBusConnectionManager::run() (this=0x7faf64981d60
<(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at
qdbusconnection.cpp:178
#12 0x00007faf6405c29d in QThreadPrivate::start(void*) (arg=0x7faf64981d60
<(anonymous namespace)::Q_QGS__q_manager::innerFunction()::holder>) at
thread/qthread_unix.cpp:368
#13 0x00007faf631f17fc in start_thread (arg=0x7faf51206700) at
pthread_create.c:465
#14 0x00007faf6395eb0f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95
Thread 2 (Thread 0x7faf5335f700 (LWP 12414)):
#0 0x00007faf63952901 in __GI___poll (fds=fds@entry=0x7faf5335ebb8,
nfds=nfds@entry=1, timeout=timeout@entry=-1) at
../sysdeps/unix/sysv/linux/poll.c:29
#1 0x00007faf68957747 in poll (__timeout=-1, __nfds=1, __fds=0x7faf5335ebb8)
at /usr/include/x86_64-linux-gnu/bits/poll2.h:46
#2 0x00007faf68957747 in _xcb_conn_wait (c=c@entry=0x55b960622250,
cond=cond@entry=0x55b960622290, vector=vector@entry=0x0, count=count@entry=0x0)
at ../../src/xcb_conn.c:479
#3 0x00007faf6895953a in xcb_wait_for_event (c=0x55b960622250) at
../../src/xcb_in.c:693
#4 0x00007faf554a6f09 in QXcbEventReader::run() (this=0x55b96062ce40) at
qxcbconnection.cpp:1322
#5 0x00007faf6405c29d in QThreadPrivate::start(void*) (arg=0x55b96062ce40) at
thread/qthread_unix.cpp:368
#6 0x00007faf631f17fc in start_thread (arg=0x7faf5335f700) at
pthread_create.c:465
#7 0x00007faf6395eb0f in clone () at
../sysdeps/unix/sysv/linux/x86_64/clone.S:95
Thread 1 (Thread 0x7faf6a318900 (LWP 12397)):
[KCrash Handler]
#6 0x00007faf663357c3 in KJob::finishJob(bool) () at
/usr/lib/x86_64-linux-gnu/libKF5CoreAddons.so.5
#7 0x00007fae9e10e270 in () at
/usr/lib/x86_64-linux-gnu/qt5/plugins/plasma/dataengine/plasma_engine_soliddevice.so
#8 0x00007faf684e1481 in () at /usr/lib/x86_64-linux-gnu/libKF5Plasma.so.5
#9 0x00007faf64269452 in QObject::event(QEvent*) (this=0x55b964be0fc0,
e=<optimized out>) at kernel/qobject.cpp:1246
#10 0x00007faf6523e46c in QApplicationPrivate::notify_helper(QObject*, QEvent*)
(this=this@entry=0x55b9606129b0, receiver=receiver@entry=0x55b964be0fc0,
e=e@entry=0x55b964fa83e0) at kernel/qapplication.cpp:3717
#11 0x00007faf65245d34 in QApplication::notify(QObject*, QEvent*)
(this=0x7fffa9c73e10, receiver=0x55b964be0fc0, e=0x55b964fa83e0) at
kernel/qapplication.cpp:3476
#12 0x00007faf64239de8 in QCoreApplication::notifyInternal2(QObject*, QEvent*)
(receiver=0x55b964be0fc0, event=event@entry=0x55b964fa83e0) at
kernel/qcoreapplication.cpp:1018
#13 0x00007faf6423c55d in QCoreApplication::sendEvent(QObject*, QEvent*)
(event=0x55b964fa83e0, receiver=<optimized out>) at
../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:233
#14 0x00007faf6423c55d in QCoreApplicationPrivate::sendPostedEvents(QObject*,
int, QThreadData*) (receiver=receiver@entry=0x0, event_type=event_type@entry=0,
data=0x55b960607bc0) at kernel/qcoreapplication.cpp:1678
#15 0x00007faf6423cae8 in QCoreApplication::sendPostedEvents(QObject*, int)
(receiver=receiver@entry=0x0, event_type=event_type@entry=0) at
kernel/qcoreapplication.cpp:1532
#16 0x00007faf64292e53 in postEventSourceDispatch(GSource*, GSourceFunc,
gpointer) (s=s@entry=0x55b960653730) at kernel/qeventdispatcher_glib.cpp:276
#17 0x00007faf5e585fb7 in g_main_dispatch (context=0x7faf4c004fc0) at
../../../../glib/gmain.c:3148
#18 0x00007faf5e585fb7 in g_main_context_dispatch
(context=context@entry=0x7faf4c004fc0) at ../../../../glib/gmain.c:3813
#19 0x00007faf5e5861f0 in g_main_context_iterate
(context=context@entry=0x7faf4c004fc0, block=block@entry=1,
dispatch=dispatch@entry=1, self=<optimized out>) at
../../../../glib/gmain.c:3886
#20 0x00007faf5e58627c in g_main_context_iteration (context=0x7faf4c004fc0,
may_block=may_block@entry=1) at ../../../../glib/gmain.c:3947
#21 0x00007faf6429247f in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>)
(this=0x55b960666d00, flags=...) at kernel/qeventdispatcher_glib.cpp:423
#22 0x00007faf64237e3a in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>)
(this=this@entry=0x7fffa9c73d10, flags=..., flags@entry=...) at
kernel/qeventloop.cpp:212
#23 0x00007faf64240da4 in QCoreApplication::exec() () at
kernel/qcoreapplication.cpp:1291
#24 0x000055b95fc66ebc in ()
#25 0x00007faf6386b1c1 in __libc_start_main (main=0x55b95fc664b0, argc=1,
argv=0x7fffa9c73fb8, init=<optimized out>, fini=<optimized out>,
rtld_fini=<optimized out>, stack_end=0x7fffa9c73fa8) at ../csu/libc-start.c:308
#26 0x000055b95fc6725a in _start ()
Reported using DrKonqi
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