Bug 351514

Application: kdeinit5 (5.2.2)
 (Compiled from sources)
Qt Version: 5.4.1
Operating System: Linux 3.19.0-26-generic i686
Distribution: Ubuntu 15.04

-- Information about the crash:
- What I was doing when the application crashed:
пытался добавить украинскую раскладку. Во время этого действия окно произвольно исчезало. После добавления языка и выход через кнопку в правом верхнем углу, вылезло сообщение об ошибке
//
google translate :
I tried to add Ukrainian layout . During this action the window randomly disappear. After adding the language and exit through the button in the upper right corner , got out an error message

-- Backtrace:
Application: Модуль настройки KDE (kdeinit5), signal: Aborted
Using host libthread_db library "/lib/i386-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0xb1a9c9c0 (LWP 4718))]

Thread 4 (Thread 0xaf2d2b40 (LWP 4719)):
#0  0xb771cbe0 in __kernel_vsyscall ()
#1  0xb69643db in poll () at ../sysdeps/unix/syscall-template.S:81
#2  0xb5dee3a8 in ?? () from /usr/lib/i386-linux-gnu/libxcb.so.1
#3  0xb5df0394 in xcb_wait_for_event () from /usr/lib/i386-linux-gnu/libxcb.so.1
#4  0xaf4347d3 in QXcbEventReader::run (this=0x88653c0) at qxcbconnection.cpp:1105
#5  0xb6aca7eb in QThreadPrivate::start (arg=0x88653c0) at thread/qthread_unix.cpp:337
#6  0xb5d461aa in start_thread (arg=0xaf2d2b40) at pthread_create.c:333
#7  0xb696efde in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:122

Thread 3 (Thread 0xadc1cb40 (LWP 4720)):
[KCrash Handler]
#7  0xb771cbe0 in __kernel_vsyscall ()
#8  0xb68b1057 in __GI_raise (sig=6) at ../sysdeps/unix/sysv/linux/raise.c:55
#9  0xb68b2699 in __GI_abort () at abort.c:89
#10 0xb68ef19e in __libc_message (do_abort=1, fmt=0xb69e9444 "*** Error in `%s': %s: 0x%s ***\n") at ../sysdeps/posix/libc_fatal.c:175
#11 0xb68f4de7 in malloc_printerr (action=<optimized out>, str=0xb69e9584 "double free or corruption (fasttop)", ptr=0xad300468) at malloc.c:4965
#12 0xb68f554d in _int_free (av=0xad300010, p=<optimized out>, have_lock=0) at malloc.c:3834
#13 0xb579b2a1 in ?? () from /usr/lib/nvidia-340/tls/libnvidia-tls.so.340.76
#14 0xb5d45370 in __nptl_deallocate_tsd () at pthread_create.c:175
#15 0xb5d46267 in __nptl_deallocate_tsd () at ../sysdeps/unix/sysv/linux/exit-thread.h:36
#16 start_thread (arg=0xadc1cb40) at pthread_create.c:346
#17 0xb696efde in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:122

Thread 2 (Thread 0xad21bb40 (LWP 4721)):
[KCrash Handler]
#6  0xb771cbe0 in __kernel_vsyscall ()
#7  0xb68b1057 in __GI_raise (sig=6) at ../sysdeps/unix/sysv/linux/raise.c:55
#8  0xb68b2699 in __GI_abort () at abort.c:89
#9  0xb68ef19e in __libc_message (do_abort=1, fmt=0xb69e9444 "*** Error in `%s': %s: 0x%s ***\n") at ../sysdeps/posix/libc_fatal.c:175
#10 0xb68f4de7 in malloc_printerr (action=<optimized out>, str=0xb69e5549 "corrupted double-linked list", ptr=0xac900460) at malloc.c:4965
#11 0xb68f5073 in malloc_consolidate (av=av@entry=0xac900010) at malloc.c:4142
#12 0xb68f6250 in _int_malloc (av=av@entry=0xac900010, bytes=bytes@entry=2040) at malloc.c:3417
#13 0xb68f8c9f in __libc_calloc (n=1, elem_size=2040) at malloc.c:3213
#14 0xb579c858 in ?? () from /usr/lib/nvidia-340/tls/libnvidia-tls.so.340.76
#15 0xb58c2716 in g_malloc0 () from /lib/i386-linux-gnu/libglib-2.0.so.0
#16 0xb58da3ee in g_slice_free1 () from /lib/i386-linux-gnu/libglib-2.0.so.0
#17 0xb58e46e2 in g_thread_unref () from /lib/i386-linux-gnu/libglib-2.0.so.0
#18 0xb58e4728 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
#19 0xb5d45370 in __nptl_deallocate_tsd () at pthread_create.c:175
#20 0xb5d46267 in __nptl_deallocate_tsd () at ../sysdeps/unix/sysv/linux/exit-thread.h:36
#21 start_thread (arg=0xad21bb40) at pthread_create.c:346
#22 0xb696efde in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:122

Thread 1 (Thread 0xb1a9c9c0 (LWP 4718)):
#0  0xb771cbe0 in __kernel_vsyscall ()
#1  0xb5d4b25c in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/i386/i686/../i486/pthread_cond_wait.S:187
#2  0xb697bcf6 in __pthread_cond_wait (cond=0x8865570, mutex=0x8865558) at forward.c:149
#3  0xb6acb86c in wait (time=<optimized out>, this=<optimized out>) at thread/qwaitcondition_unix.cpp:128
#4  QWaitCondition::wait (this=0x8865558, mutex=0x8865528, time=4294967295) at thread/qwaitcondition_unix.cpp:200
#5  0xb6aca38f in QThread::wait (this=0x88653c0, time=4294967295) at thread/qthread_unix.cpp:670
#6  0xaf431bdc in QXcbConnection::~QXcbConnection (this=0x8859388, __in_chrg=<optimized out>) at qxcbconnection.cpp:429
#7  0xaf431c1a in QXcbConnection::~QXcbConnection (this=0x8859388, __in_chrg=<optimized out>) at qxcbconnection.cpp:450
#8  0xaf4365ef in qDeleteAll<QList<QXcbConnection*>::const_iterator> (end=..., begin=...) at ../../../../include/QtCore/../../src/corelib/tools/qalgorithms.h:315
#9  qDeleteAll<QList<QXcbConnection*> > (c=...) at ../../../../include/QtCore/../../src/corelib/tools/qalgorithms.h:323
#10 QXcbIntegration::~QXcbIntegration (this=0x884af80, __in_chrg=<optimized out>) at qxcbintegration.cpp:189
#11 0xaf4366ea in QXcbIntegration::~QXcbIntegration (this=0x884af80, __in_chrg=<optimized out>) at qxcbintegration.cpp:190
#12 0xb7219c2f in QGuiApplicationPrivate::~QGuiApplicationPrivate (this=0x88496e0, __in_chrg=<optimized out>) at kernel/qguiapplication.cpp:1374
#13 0xb5efa85d in QApplicationPrivate::~QApplicationPrivate (this=0x88496e0, __in_chrg=<optimized out>) at kernel/qapplication.cpp:179
#14 0xb5efa8fa in QApplicationPrivate::~QApplicationPrivate (this=0x88496e0, __in_chrg=<optimized out>) at kernel/qapplication.cpp:183
#15 0xb6d31cd3 in cleanup (pointer=<optimized out>) at ../../include/QtCore/../../src/corelib/tools/qscopedpointer.h:54
#16 ~QScopedPointer (this=0xbfae5110, __in_chrg=<optimized out>) at ../../include/QtCore/../../src/corelib/tools/qscopedpointer.h:101
#17 QObject::~QObject (this=0xbfae510c, __in_chrg=<optimized out>) at kernel/qobject.cpp:882
#18 0xb6cf545c in QCoreApplication::~QCoreApplication (this=0xbfae510c, __in_chrg=<optimized out>) at kernel/qcoreapplication.cpp:777
#19 0xb72198f1 in QGuiApplication::~QGuiApplication (this=0xbfae510c, __in_chrg=<optimized out>) at kernel/qguiapplication.cpp:566
#20 0xb5efc85a in QApplication::~QApplication (this=0xbfae510c, __in_chrg=<optimized out>) at kernel/qapplication.cpp:803
#21 0xaf845319 in KApplication::~KApplication() () from /usr/lib/i386-linux-gnu/libKF5KDELibs4Support.so.5
#22 0xb15cbf88 in kdemain () from /usr/lib/i386-linux-gnu/libkdeinit5_kcmshell5.so
#23 0x0804f679 in launch (argc=-512, argc@entry=3, _name=0x1 <error: Cannot access memory at address 0x1>, _name@entry=0x882bf44 "kcmshell5", args=0xb15ca640 <kdemain> "UWVS\350\227\351\377\377\201\303\267y", cwd=0x0, envc=0, envs=0xbfae51c4 "H\237\367\266\340*\203\bx/\203\b\001\003\377\377", reset_env=false, tty=0x0, avoid_loops=false, startup_id_str=0x80524aa "0") at ../../../src/kdeinit/kinit.cpp:741
#24 0x08050f53 in handle_launcher_request (sock=8, who=<optimized out>) at ../../../src/kdeinit/kinit.cpp:1180
#25 0x080514b1 in handle_requests (waitForPid=-512, waitForPid@entry=0) at ../../../src/kdeinit/kinit.cpp:1369
#26 0x0804bf12 in main (argc=5, argv=0xbfae58e4) at ../../../src/kdeinit/kinit.cpp:1860

Reported using DrKonqi