Application: kwin (4.11.18)
KDE Platform Version: 4.14.7
Qt Version: 4.8.6
Operating System: Linux 3.19.8-100.fc20.x86_64 x86_64
Distribution: "Fedora release 20 (Heisenbug)"

-- Information about the crash:
- What I was doing when the application crashed:
Interacting with remote windows via SSH.
Remote application is called gcylc or rose suite-gcontrol

-- Backtrace:
Application: KWin (kwin), signal: Aborted
Using host libthread_db library "/lib64/libthread_db.so.1".
81	T_PSEUDO (SYSCALL_SYMBOL, SYSCALL_NAME, SYSCALL_NARGS)
[Current thread is 1 (Thread 0x7f771df3a940 (LWP 1471))]

Thread 4 (Thread 0x7f7701ed8700 (LWP 1502)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:185
#1  0x000000355f58ef0b in QTWTF::TCMalloc_PageHeap::scavengerThread (this=0x355f88df00 <QTWTF::pageheap_memory>) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:2359
#2  0x000000355f58ef49 in QTWTF::TCMalloc_PageHeap::runScavengerThread (context=<optimized out>) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:1464
#3  0x000000352b407ee5 in start_thread (arg=0x7f7701ed8700) at pthread_create.c:309
#4  0x000000352acf4d1d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 3 (Thread 0x7f7678d44700 (LWP 2611)):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:238
#1  0x000000355627cc34 in wait (time=30000, this=0x2836450) at thread/qwaitcondition_unix.cpp:84
#2  QWaitCondition::wait (this=this@entry=0x28a2a00, mutex=mutex@entry=0x19fba28, time=30000) at thread/qwaitcondition_unix.cpp:158
#3  0x00000035562701ca in QThreadPoolThread::run (this=0x28a29f0) at concurrent/qthreadpool.cpp:142
#4  0x000000355627c71f in QThreadPrivate::start (arg=0x28a29f0) at thread/qthread_unix.cpp:349
#5  0x000000352b407ee5 in start_thread (arg=0x7f7678d44700) at pthread_create.c:309
#6  0x000000352acf4d1d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 2 (Thread 0x7f7673fff700 (LWP 2612)):
#0  pthread_cond_timedwait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_timedwait.S:238
#1  0x000000355627cc34 in wait (time=30000, this=0x24130e0) at thread/qwaitcondition_unix.cpp:84
#2  QWaitCondition::wait (this=this@entry=0x28a27b0, mutex=mutex@entry=0x19fba28, time=30000) at thread/qwaitcondition_unix.cpp:158
#3  0x00000035562701ca in QThreadPoolThread::run (this=0x28a27a0) at concurrent/qthreadpool.cpp:142
#4  0x000000355627c71f in QThreadPrivate::start (arg=0x28a27a0) at thread/qthread_unix.cpp:349
#5  0x000000352b407ee5 in start_thread (arg=0x7f7673fff700) at pthread_create.c:309
#6  0x000000352acf4d1d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 1 (Thread 0x7f771df3a940 (LWP 1471)):
[KCrash Handler]
#6  0x000000352ac35877 in __GI_raise (sig=sig@entry=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:56
#7  0x000000352ac36f68 in __GI_abort () at abort.c:89
#8  0x000000352ac75a54 in __libc_message (do_abort=do_abort@entry=2, fmt=fmt@entry=0x352ad7c488 "*** Error in `%s': %s: 0x%s ***\n") at ../sysdeps/posix/libc_fatal.c:175
#9  0x000000352ac7cd78 in malloc_printerr (ptr=<optimized out>, str=0x352ad7c5b0 "free(): invalid next size (fast)", action=3) at malloc.c:4930
#10 _int_free (av=0x352afb7760 <main_arena>, p=<optimized out>, have_lock=0) at malloc.c:3782
#11 0x00000033dd6cd556 in ~Phase2Data (this=0x2412068, __in_chrg=<optimized out>) at /usr/src/debug/kde-workspace-4.11.18/kwin/scene.h:143
#12 ~QPair (this=0x2412060, __in_chrg=<optimized out>) at /usr/include/QtCore/qpair.h:54
#13 node_destruct (this=<optimized out>, to=0x27ea680, from=0x27ea668) at /usr/include/QtCore/qlist.h:431
#14 QList<QPair<KWin::Scene::Window*, KWin::Scene::Phase2Data> >::free (data=0x27ea650, this=<optimized out>) at /usr/include/QtCore/qlist.h:757
#15 0x00000033dd6cedda in ~QList (this=0x7ffcfd5c3620, __in_chrg=<optimized out>) at /usr/include/QtCore/qlist.h:732
#16 KWin::Scene::paintSimpleScreen (this=this@entry=0x1ce0bc0, orig_mask=orig_mask@entry=8, region=...) at /usr/src/debug/kde-workspace-4.11.18/kwin/scene.cpp:394
#17 0x00000033dd6ccb45 in KWin::Scene::finalPaintScreen (this=0x1ce0bc0, mask=mask@entry=8, region=..., data=...) at /usr/src/debug/kde-workspace-4.11.18/kwin/scene.cpp:198
#18 0x00000033dd6f027d in KWin::EffectsHandlerImpl::paintScreen (this=0x226a8f0, mask=mask@entry=8, region=..., data=...) at /usr/src/debug/kde-workspace-4.11.18/kwin/effects.cpp:375
#19 0x00000033dc611baf in KWin::Effect::paintScreen (this=this@entry=0x22fc060, mask=mask@entry=8, region=..., data=...) at /usr/src/debug/kde-workspace-4.11.18/kwin/libkwineffects/kwineffects.cpp:522
#20 0x00000033dd6f022a in KWin::EffectsHandlerImpl::paintScreen (this=0x226a8f0, mask=8, region=..., data=...) at /usr/src/debug/kde-workspace-4.11.18/kwin/effects.cpp:372
#21 0x00000033dd6cf196 in KWin::Scene::paintScreen (this=this@entry=0x1ce0bc0, mask=mask@entry=0x7ffcfd5c39ac, damage=..., repaint=..., updateRegion=updateRegion@entry=0x7ffcfd5c39c0, validRegion=validRegion@entry=0x7ffcfd5c39d0) at /usr/src/debug/kde-workspace-4.11.18/kwin/scene.cpp:148
#22 0x00000033dd6e29de in KWin::SceneOpenGL::paint (this=0x1ce0bc0, damage=..., toplevels=...) at /usr/src/debug/kde-workspace-4.11.18/kwin/scene_opengl.cpp:389
#23 0x00000033dd6c66eb in KWin::Compositor::performCompositing (this=0x19d8f30) at /usr/src/debug/kde-workspace-4.11.18/kwin/composite.cpp:624
#24 0x000000355639f7e1 in QObject::event (this=0x19d8f30, e=<optimized out>) at kernel/qobject.cpp:1184
#25 0x00000035599cae6c in QApplicationPrivate::notify_helper (this=this@entry=0x18b83e0, receiver=receiver@entry=0x19d8f30, e=e@entry=0x7ffcfd5c3f00) at kernel/qapplication.cpp:4565
#26 0x00000035599d17c5 in QApplication::notify (this=this@entry=0x7ffcfd5c4400, receiver=receiver@entry=0x19d8f30, e=e@entry=0x7ffcfd5c3f00) at kernel/qapplication.cpp:4351
#27 0x00000033d924a6ea in KApplication::notify (this=0x7ffcfd5c4400, receiver=0x19d8f30, event=0x7ffcfd5c3f00) at /usr/src/debug/kdelibs-4.14.7/kdeui/kernel/kapplication.cpp:311
#28 0x00000035563869ad in QCoreApplication::notifyInternal (this=0x7ffcfd5c4400, receiver=0x19d8f30, event=event@entry=0x7ffcfd5c3f00) at kernel/qcoreapplication.cpp:953
#29 0x00000035563b8213 in sendEvent (event=0x7ffcfd5c3f00, receiver=<optimized out>) at kernel/qcoreapplication.h:231
#30 QTimerInfoList::activateTimers (this=0x18b8e58) at kernel/qeventdispatcher_unix.cpp:621
#31 0x00000035563b8290 in QEventDispatcherUNIX::activateTimers (this=this@entry=0x186ccc0) at kernel/qeventdispatcher_unix.cpp:878
#32 0x00000035563b8cc0 in QEventDispatcherUNIX::processEvents (this=this@entry=0x186ccc0, flags=...) at kernel/qeventdispatcher_unix.cpp:948
#33 0x0000003559a6d606 in QEventDispatcherX11::processEvents (this=0x186ccc0, flags=...) at kernel/qeventdispatcher_x11.cpp:152
#34 0x000000355638543f in QEventLoop::processEvents (this=this@entry=0x7ffcfd5c4250, flags=...) at kernel/qeventloop.cpp:149
#35 0x000000355638578d in QEventLoop::exec (this=this@entry=0x7ffcfd5c4250, flags=...) at kernel/qeventloop.cpp:204
#36 0x000000355638ae59 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1225
#37 0x00000035599c94ec in QApplication::exec () at kernel/qapplication.cpp:3823
#38 0x00000033dd67e39e in kdemain (argc=1, argv=0x7ffcfd5c4558) at /usr/src/debug/kde-workspace-4.11.18/kwin/main.cpp:597
#39 0x000000352ac21d65 in __libc_start_main (main=0x4009d0 <main(int, char**)>, argc=1, argv=0x7ffcfd5c4558, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffcfd5c4548) at libc-start.c:285
#40 0x0000000000400a01 in _start ()

Possible duplicates by query: bug 349754, bug 348699, bug 348624, bug 347139, bug 347134.

Reported using DrKonqi