Bug 345157

Application: kdeinit5 (5.2.1)

Qt Version: 5.4.0
Operating System: Linux 3.19.0-9-generic x86_64
Distribution: Ubuntu Vivid Vervet (development branch)

-- Information about the crash:
Just viewing wondow decorations for firefox

I was just viewing the window decoration. I didn't do any changes. Crash happened when closing the dialog.

The crash can be reproduced every time.

-- Backtrace:
Application: KDE Control Module (kdeinit5), signal: Aborted
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f0dde0047c0 (LWP 10908))]

Thread 2 (Thread 0x7f0dad9e9700 (LWP 10914)):
#0  0x00007f0ddc6ef0cd in poll () at ../sysdeps/unix/syscall-template.S:81
#1  0x00007f0dd9829ebc in ?? () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f0dd9829fcc in g_main_context_iteration () from /lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f0ddccfeacc in QEventDispatcherGlib::processEvents (this=0x7f0da00008c0, flags=...) at kernel/qeventdispatcher_glib.cpp:418
#4  0x00007f0ddcca3392 in QEventLoop::exec (this=this@entry=0x7f0dad9e8de0, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204
#5  0x00007f0ddca62a94 in QThread::exec (this=<optimized out>) at thread/qthread.cpp:503
#6  0x00007f0dcc1e76a5 in ?? () from /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#7  0x00007f0ddca67a4e in QThreadPrivate::start (arg=0x2287a00) at thread/qthread_unix.cpp:337
#8  0x00007f0dda2880a5 in start_thread (arg=0x7f0dad9e9700) at pthread_create.c:309
#9  0x00007f0ddc6f957d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:111

Thread 1 (Thread 0x7f0dde0047c0 (LWP 10908)):
[KCrash Handler]
#6  0x00007f0ddc635e37 in __GI_raise (sig=sig@entry=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:56
#7  0x00007f0ddc637528 in __GI_abort () at abort.c:89
#8  0x00007f0ddc6777a4 in __libc_message (do_abort=do_abort@entry=1, fmt=fmt@entry=0x7f0ddc780780 "*** Error in `%s': %s: 0x%s ***\n") at ../sysdeps/posix/libc_fatal.c:175
#9  0x00007f0ddc67edb6 in malloc_printerr (ptr=<optimized out>, str=0x7f0ddc7808b0 "double free or corruption (out)", action=1) at malloc.c:4996
#10 _int_free (av=<optimized out>, p=<optimized out>, have_lock=0) at malloc.c:3840
#11 0x00007f0ddccd404b in QMetaCallEvent::~QMetaCallEvent (this=0x7f0dc0009e70, __in_chrg=<optimized out>) at kernel/qobject.cpp:467
#12 0x00007f0ddccd4099 in QMetaCallEvent::~QMetaCallEvent (this=0x7f0dc0009e70, __in_chrg=<optimized out>) at kernel/qobject.cpp:475
#13 0x00007f0ddcca8537 in QCoreApplication::removePostedEvents (receiver=0x122c330, eventType=eventType@entry=0) at kernel/qcoreapplication.cpp:1613
#14 0x00007f0ddccd468a in QObjectPrivate::~QObjectPrivate (this=0x122c670, __in_chrg=<optimized out>) at kernel/qobject.cpp:234
#15 0x00007f0ddccd4799 in QObjectPrivate::~QObjectPrivate (this=0x122c670, __in_chrg=<optimized out>) at kernel/qobject.cpp:245
#16 0x00007f0ddccdf7cb in cleanup (pointer=<optimized out>) at ../../include/QtCore/../../src/corelib/tools/qscopedpointer.h:54
#17 ~QScopedPointer (this=0x122c338, __in_chrg=<optimized out>) at ../../include/QtCore/../../src/corelib/tools/qscopedpointer.h:101
#18 QObject::~QObject (this=<optimized out>, __in_chrg=<optimized out>) at kernel/qobject.cpp:882
#19 0x00007f0dca1c3649 in QXcbConnection::~QXcbConnection (this=0x122c330, __in_chrg=<optimized out>) at qxcbconnection.cpp:450
#20 0x00007f0dca1c7d2e in qDeleteAll<QList<QXcbConnection*>::const_iterator> (end=..., begin=...) at ../../../../include/QtCore/../../src/corelib/tools/qalgorithms.h:315
#21 qDeleteAll<QList<QXcbConnection*> > (c=...) at ../../../../include/QtCore/../../src/corelib/tools/qalgorithms.h:323
#22 QXcbIntegration::~QXcbIntegration (this=0x1217b80, __in_chrg=<optimized out>) at qxcbintegration.cpp:170
#23 0x00007f0dca1c7e09 in QXcbIntegration::~QXcbIntegration (this=0x1217b80, __in_chrg=<optimized out>) at qxcbintegration.cpp:171
#24 0x00007f0ddd9af440 in QGuiApplicationPrivate::~QGuiApplicationPrivate() () from /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#25 0x00007f0ddb0aac99 in QApplicationPrivate::~QApplicationPrivate (this=0x11ff800, __in_chrg=<optimized out>) at kernel/qapplication.cpp:183
#26 0x00007f0ddccdf7cb in cleanup (pointer=<optimized out>) at ../../include/QtCore/../../src/corelib/tools/qscopedpointer.h:54
#27 ~QScopedPointer (this=0x7ffc56869328, __in_chrg=<optimized out>) at ../../include/QtCore/../../src/corelib/tools/qscopedpointer.h:101
#28 QObject::~QObject (this=<optimized out>, __in_chrg=<optimized out>) at kernel/qobject.cpp:882
#29 0x00007f0ddb0ac7a3 in QApplication::~QApplication (this=0x7ffc56869320, __in_chrg=<optimized out>) at kernel/qapplication.cpp:803
#30 0x00007f0dcb91d5fc in kdemain () from /usr/lib/x86_64-linux-gnu/libkdeinit5_kcmshell5.so
#31 0x00000000004088e9 in ?? ()
#32 0x000000000040a382 in ?? ()
#33 0x000000000040a946 in ?? ()
#34 0x000000000040501b in main ()

Reported using DrKonqi