Application: krita (2.9.2)
KDE Platform Version: 4.14.6
Qt Version: 4.8.6
Operating System: Linux 3.19.0-12-generic x86_64
Distribution: Ubuntu Vivid Vervet (development branch)

-- Information about the crash:
kubuntu 15.04 - kde 5 workspace

-  WhatI was doing when the application crashed:
drawing with huion h610 some line exercises with gpen 10
I belive when moving out from interface to an automatic hiden panel in plasmashell, not much sure.

The crash can be reproduced sometimes.

-- Backtrace:
Application: Krita (krita), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7ff3ac0517c0 (LWP 24038))]

Thread 7 (Thread 0x7ff38ca7a700 (LWP 24045)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007ff3a9e30c56 in wait (time=18446744073709551615, this=0x3309140) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=<optimized out>, mutex=mutex@entry=0x33090f0, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x00007ff3a9e2ca7b in QSemaphore::acquire (this=this@entry=0x3308e20, n=n@entry=1) at thread/qsemaphore.cpp:144
#4  0x00007ff3a86a82fe in KisTileDataPooler::waitForWork (this=0x3308e10) at /build/buildd/calligra-2.9.2/krita/image/tiles3/kis_tile_data_pooler.cc:162
#5  0x00007ff3a86a8727 in KisTileDataPooler::run (this=0x3308e10) at /build/buildd/calligra-2.9.2/krita/image/tiles3/kis_tile_data_pooler.cc:184
#6  0x00007ff3a9e306ff in QThreadPrivate::start (arg=0x3308e10) at thread/qthread_unix.cpp:349
#7  0x00007ff3a41f96aa in start_thread (arg=0x7ff38ca7a700) at pthread_create.c:333
#8  0x00007ff3a95cbeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 6 (Thread 0x7ff3828b5700 (LWP 24046)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007ff3a9e30c56 in wait (time=18446744073709551615, this=0x33094f0) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=<optimized out>, mutex=mutex@entry=0x33094a0, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x00007ff3a9e2ceb3 in QSemaphore::tryAcquire (this=0x33091b0, n=n@entry=1, timeout=timeout@entry=-1) at thread/qsemaphore.cpp:221
#4  0x00007ff3a86c2b83 in KisTileDataSwapper::waitForWork (this=this@entry=0x3308e48) at /build/buildd/calligra-2.9.2/krita/image/tiles3/swap/kis_tile_data_swapper.cpp:86
#5  0x00007ff3a86c2e3a in KisTileDataSwapper::run (this=0x3308e48) at /build/buildd/calligra-2.9.2/krita/image/tiles3/swap/kis_tile_data_swapper.cpp:92
#6  0x00007ff3a9e306ff in QThreadPrivate::start (arg=0x3308e48) at thread/qthread_unix.cpp:349
#7  0x00007ff3a41f96aa in start_thread (arg=0x7ff3828b5700) at pthread_create.c:333
#8  0x00007ff3a95cbeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 5 (Thread 0x7ff3818a3700 (LWP 24048)):
#0  0x00007ff3a95c2743 in select () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007ff3a9f67911 in qt_safe_select (nfds=20, fdread=fdread@entry=0x7ff37b9b6118, fdwrite=fdwrite@entry=0x7ff37b9b63b0, fdexcept=fdexcept@entry=0x7ff37b9b6648, orig_timeout=orig_timeout@entry=0x0) at kernel/qcore_unix.cpp:79
#2  0x00007ff3a9f6d3cf in select (timeout=0x0, exceptfds=0x7ff37b9b6648, writefds=0x7ff37b9b63b0, readfds=0x7ff37b9b6118, nfds=<optimized out>, this=0x7ff378000910) at kernel/qeventdispatcher_unix.cpp:649
#3  QEventDispatcherUNIXPrivate::doSelect (this=this@entry=0x7ff37b9b5f60, flags=..., timeout=0x0) at kernel/qeventdispatcher_unix.cpp:223
#4  0x00007ff3a9f6d887 in QEventDispatcherUNIX::processEvents (this=0x7ff378000910, flags=...) at kernel/qeventdispatcher_unix.cpp:944
#5  0x00007ff3a9f39cd1 in QEventLoop::processEvents (this=this@entry=0x7ff3818a2dc0, flags=...) at kernel/qeventloop.cpp:149
#6  0x00007ff3a9f3a035 in QEventLoop::exec (this=this@entry=0x7ff3818a2dc0, flags=...) at kernel/qeventloop.cpp:204
#7  0x00007ff3a9e2de89 in QThread::exec (this=this@entry=0x3a22490) at thread/qthread.cpp:538
#8  0x00007ff3a9f1a443 in QInotifyFileSystemWatcherEngine::run (this=0x3a22490) at io/qfilesystemwatcher_inotify.cpp:265
#9  0x00007ff3a9e306ff in QThreadPrivate::start (arg=0x3a22490) at thread/qthread_unix.cpp:349
#10 0x00007ff3a41f96aa in start_thread (arg=0x7ff3818a3700) at pthread_create.c:333
#11 0x00007ff3a95cbeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 4 (Thread 0x7ff3820ac700 (LWP 24050)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x00007ff3a9e30c56 in wait (time=18446744073709551615, this=0x3af12f0) at thread/qwaitcondition_unix.cpp:86
#2  QWaitCondition::wait (this=this@entry=0x3af0e58, mutex=mutex@entry=0x3af0e50, time=time@entry=18446744073709551615) at thread/qwaitcondition_unix.cpp:158
#3  0x00007ff3aae598dd in QFileInfoGatherer::run (this=0x3af0e40) at dialogs/qfileinfogatherer.cpp:214
#4  0x00007ff3a9e306ff in QThreadPrivate::start (arg=0x3af0e40) at thread/qthread_unix.cpp:349
#5  0x00007ff3a41f96aa in start_thread (arg=0x7ff3820ac700) at pthread_create.c:333
#6  0x00007ff3a95cbeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 3 (Thread 0x7ff38109a700 (LWP 24051)):
#0  0x00007ff3a95c2743 in select () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007ff3a9f67911 in qt_safe_select (nfds=29, fdread=fdread@entry=0x7ff36c000ae8, fdwrite=fdwrite@entry=0x7ff36c000d80, fdexcept=fdexcept@entry=0x7ff36c001018, orig_timeout=orig_timeout@entry=0x0) at kernel/qcore_unix.cpp:79
#2  0x00007ff3a9f6d3cf in select (timeout=0x0, exceptfds=0x7ff36c001018, writefds=0x7ff36c000d80, readfds=0x7ff36c000ae8, nfds=<optimized out>, this=0x7ff36c000910) at kernel/qeventdispatcher_unix.cpp:649
#3  QEventDispatcherUNIXPrivate::doSelect (this=this@entry=0x7ff36c000930, flags=..., timeout=0x0) at kernel/qeventdispatcher_unix.cpp:223
#4  0x00007ff3a9f6d887 in QEventDispatcherUNIX::processEvents (this=0x7ff36c000910, flags=...) at kernel/qeventdispatcher_unix.cpp:944
#5  0x00007ff3a9f39cd1 in QEventLoop::processEvents (this=this@entry=0x7ff381099dc0, flags=...) at kernel/qeventloop.cpp:149
#6  0x00007ff3a9f3a035 in QEventLoop::exec (this=this@entry=0x7ff381099dc0, flags=...) at kernel/qeventloop.cpp:204
#7  0x00007ff3a9e2de89 in QThread::exec (this=this@entry=0x3af13f0) at thread/qthread.cpp:538
#8  0x00007ff3a9f1a443 in QInotifyFileSystemWatcherEngine::run (this=0x3af13f0) at io/qfilesystemwatcher_inotify.cpp:265
#9  0x00007ff3a9e306ff in QThreadPrivate::start (arg=0x3af13f0) at thread/qthread_unix.cpp:349
#10 0x00007ff3a41f96aa in start_thread (arg=0x7ff38109a700) at pthread_create.c:333
#11 0x00007ff3a95cbeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 2 (Thread 0x7ff372f02700 (LWP 24171)):
#0  0x00007ff3a95c2743 in select () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007ff3a9f67911 in qt_safe_select (nfds=44, fdread=fdread@entry=0x7ff35c000a98, fdwrite=fdwrite@entry=0x7ff35c000d30, fdexcept=fdexcept@entry=0x7ff35c000fc8, orig_timeout=orig_timeout@entry=0x0) at kernel/qcore_unix.cpp:79
#2  0x00007ff3a9f6d3cf in select (timeout=0x0, exceptfds=0x7ff35c000fc8, writefds=0x7ff35c000d30, readfds=0x7ff35c000a98, nfds=<optimized out>, this=0x7ff35c0008c0) at kernel/qeventdispatcher_unix.cpp:649
#3  QEventDispatcherUNIXPrivate::doSelect (this=this@entry=0x7ff35c0008e0, flags=..., timeout=0x0) at kernel/qeventdispatcher_unix.cpp:223
#4  0x00007ff3a9f6d887 in QEventDispatcherUNIX::processEvents (this=0x7ff35c0008c0, flags=...) at kernel/qeventdispatcher_unix.cpp:944
#5  0x00007ff3a9f39cd1 in QEventLoop::processEvents (this=this@entry=0x7ff372f01dc0, flags=...) at kernel/qeventloop.cpp:149
#6  0x00007ff3a9f3a035 in QEventLoop::exec (this=this@entry=0x7ff372f01dc0, flags=...) at kernel/qeventloop.cpp:204
#7  0x00007ff3a9e2de89 in QThread::exec (this=this@entry=0x35f20e0) at thread/qthread.cpp:538
#8  0x00007ff3a9f1a443 in QInotifyFileSystemWatcherEngine::run (this=0x35f20e0) at io/qfilesystemwatcher_inotify.cpp:265
#9  0x00007ff3a9e306ff in QThreadPrivate::start (arg=0x35f20e0) at thread/qthread_unix.cpp:349
#10 0x00007ff3a41f96aa in start_thread (arg=0x7ff372f02700) at pthread_create.c:333
#11 0x00007ff3a95cbeed in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109

Thread 1 (Thread 0x7ff3ac0517c0 (LWP 24038)):
[KCrash Handler]
#6  0x00007ff3aa988cfe in QWidget::testAttribute_helper (this=0x695caa0, attribute=Qt::WA_WState_ExplicitShowHide) at kernel/qwidget.cpp:11118
#7  0x00007ff3aa990c8d in testAttribute (attribute=Qt::WA_WState_ExplicitShowHide, this=0x695caa0) at ../../include/QtGui/../../src/gui/kernel/qwidget.h:1045
#8  QWidget::setAttribute (this=0x695caa0, attribute=attribute@entry=Qt::WA_WState_ExplicitShowHide, on=on@entry=false) at kernel/qwidget.cpp:10752
#9  0x00007ff3aadbdc93 in QStatusBar::hideOrShow (this=0x37ce050) at widgets/qstatusbar.cpp:690
#10 0x00007ff3aadbdd7b in QStatusBar::showMessage (this=<optimized out>, message=..., timeout=timeout@entry=0) at widgets/qstatusbar.cpp:616
#11 0x00007ff3ab9b819c in KisView::slotActionStatusText (this=<optimized out>, text=...) at /build/buildd/calligra-2.9.2/krita/ui/KisView.cpp:585
#12 0x00007ff3ab9bc439 in KisView::qt_static_metacall (_o=<optimized out>, _c=<optimized out>, _id=<optimized out>, _a=<optimized out>) at /build/buildd/calligra-2.9.2/obj-x86_64-linux-gnu/krita/ui/KisView.moc:75
#13 0x00007ff3a9f5019c in QMetaObject::activate (sender=sender@entry=0x327b530, m=m@entry=0x7ff3abe03de0 <KisDocument::staticMetaObject>, local_signal_index=local_signal_index@entry=2, argv=argv@entry=0x7ffd7efce9d0) at kernel/qobject.cpp:3567
#14 0x00007ff3ab954df5 in KisDocument::statusBarMessage (this=this@entry=0x327b530, _t1=...) at /build/buildd/calligra-2.9.2/obj-x86_64-linux-gnu/krita/ui/KisDocument.moc:207
#15 0x00007ff3ab9560d0 in KisDocument::slotAutoSave (this=0x327b530) at /build/buildd/calligra-2.9.2/krita/ui/KisDocument.cpp:861
#16 0x00007ff3ab964705 in KisDocument::qt_static_metacall (_o=<optimized out>, _id=<optimized out>, _a=<optimized out>, _c=<optimized out>) at /build/buildd/calligra-2.9.2/obj-x86_64-linux-gnu/krita/ui/KisDocument.moc:109
#17 0x00007ff3a9f5019c in QMetaObject::activate (sender=0x41b5220, m=<optimized out>, local_signal_index=<optimized out>, argv=0x0) at kernel/qobject.cpp:3567
#18 0x00007ff3a9f54763 in QObject::event (this=0x41b5220, e=<optimized out>) at kernel/qobject.cpp:1253
#19 0x00007ff3aa9479bc in QApplicationPrivate::notify_helper (this=this@entry=0x26ada30, receiver=receiver@entry=0x41b5220, e=e@entry=0x7ffd7efcef40) at kernel/qapplication.cpp:4570
#20 0x00007ff3aa94e4d8 in QApplication::notify (this=0x7ffd7efcf5f0, receiver=receiver@entry=0x41b5220, e=e@entry=0x7ffd7efcef40) at kernel/qapplication.cpp:4356
#21 0x00007ff3ab94da27 in KisApplication::notify (this=<optimized out>, receiver=0x41b5220, event=0x7ffd7efcef40) at /build/buildd/calligra-2.9.2/krita/ui/KisApplication.cpp:488
#22 0x00007ff3a9f3b17d in QCoreApplication::notifyInternal (this=0x7ffd7efcf5f0, receiver=0x41b5220, event=event@entry=0x7ffd7efcef40) at kernel/qcoreapplication.cpp:955
#23 0x00007ff3a9f6ce3b in sendEvent (event=0x7ffd7efcef40, receiver=<optimized out>) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:231
#24 QTimerInfoList::activateTimers (this=0x26a2568) at kernel/qeventdispatcher_unix.cpp:621
#25 0x00007ff3a9f6cf10 in QEventDispatcherUNIX::activateTimers (this=this@entry=0x2451750) at kernel/qeventdispatcher_unix.cpp:878
#26 0x00007ff3a9f6d958 in QEventDispatcherUNIX::processEvents (this=this@entry=0x2451750, flags=...) at kernel/qeventdispatcher_unix.cpp:948
#27 0x00007ff3aa9f0597 in QEventDispatcherX11::processEvents (this=0x2451750, flags=...) at kernel/qeventdispatcher_x11.cpp:152
#28 0x00007ff3a9f39cd1 in QEventLoop::processEvents (this=this@entry=0x7ffd7efcf290, flags=...) at kernel/qeventloop.cpp:149
#29 0x00007ff3a9f3a035 in QEventLoop::exec (this=this@entry=0x7ffd7efcf290, flags=...) at kernel/qeventloop.cpp:204
#30 0x00007ff3a9f3fab9 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1227
#31 0x00007ff3aa945c1c in QApplication::exec () at kernel/qapplication.cpp:3828
#32 0x0000000000402696 in main (argc=<optimized out>, argv=<optimized out>) at /build/buildd/calligra-2.9.2/krita/main.cc:179

Possible duplicates by query: bug 240604.

Reported using DrKonqi