Application: konsole (15.04.0)

Qt Version: 5.4.1
Operating System: Linux 3.19.0-22-generic x86_64
Distribution: Ubuntu 15.04

-- Information about the crash:
Usually after I do some command like apt-get, etc. I close console by hitting the X and it crashes. I see multiple reports with the same issue but as much as I check that each one I find is related, it won't let me mark it as duplicate So i either have to manually type a crash report again like I am doing here or it goes back to search which finds the same crash reports. Annoying.

The crash can be reproduced every time.

-- Backtrace:
Application: Konsole (konsole), signal: Aborted
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[KCrash Handler]
#6  0x00007f41434c5267 in __GI_raise (sig=sig@entry=6) at ../sysdeps/unix/sysv/linux/raise.c:55
#7  0x00007f41434c6eca in __GI_abort () at abort.c:89
#8  0x00007f4143508c53 in __libc_message (do_abort=do_abort@entry=1, fmt=fmt@entry=0x7f41436211a8 "*** Error in `%s': %s: 0x%s ***\n") at ../sysdeps/posix/libc_fatal.c:175
#9  0x00007f4143510c69 in malloc_printerr (ptr=<optimized out>, str=0x7f4143621270 "double free or corruption (fasttop)", action=1) at malloc.c:4965
#10 _int_free (av=<optimized out>, p=<optimized out>, have_lock=0) at malloc.c:3834
#11 0x00007f414351489c in __GI___libc_free (mem=<optimized out>) at malloc.c:2950
#12 0x00007f413d80329b in ?? () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#13 0x00007f413d8017a0 in xcb_disconnect () from /usr/lib/x86_64-linux-gnu/libxcb.so.1
#14 0x00007f413dc3a617 in XCloseDisplay () from /usr/lib/x86_64-linux-gnu/libX11.so.6
#15 0x00007f41307501f4 in QXcbConnection::~QXcbConnection (this=0x2441e30, __in_chrg=<optimized out>) at qxcbconnection.cpp:444
#16 0x00007f4130750619 in QXcbConnection::~QXcbConnection (this=0x2441e30, __in_chrg=<optimized out>) at qxcbconnection.cpp:450
#17 0x00007f4130754d3e in qDeleteAll<QList<QXcbConnection*>::const_iterator> (end=..., begin=...) at ../../../../include/QtCore/../../src/corelib/tools/qalgorithms.h:315
#18 qDeleteAll<QList<QXcbConnection*> > (c=...) at ../../../../include/QtCore/../../src/corelib/tools/qalgorithms.h:323
#19 QXcbIntegration::~QXcbIntegration (this=0x24218e0, __in_chrg=<optimized out>) at qxcbintegration.cpp:189
#20 0x00007f4130754e19 in QXcbIntegration::~QXcbIntegration (this=0x24218e0, __in_chrg=<optimized out>) at qxcbintegration.cpp:190
#21 0x00007f41404125c0 in QGuiApplicationPrivate::~QGuiApplicationPrivate (this=0x2422550, __in_chrg=<optimized out>) at kernel/qguiapplication.cpp:1374
#22 0x00007f41409d64e9 in QApplicationPrivate::~QApplicationPrivate (this=0x2422550, __in_chrg=<optimized out>) at kernel/qapplication.cpp:183
#23 0x00007f414010383b in cleanup (pointer=<optimized out>) at ../../include/QtCore/../../src/corelib/tools/qscopedpointer.h:54
#24 ~QScopedPointer (this=0x7fff8866b888, __in_chrg=<optimized out>) at ../../include/QtCore/../../src/corelib/tools/qscopedpointer.h:101
#25 QObject::~QObject (this=<optimized out>, __in_chrg=<optimized out>) at kernel/qobject.cpp:882
#26 0x00007f41409d8133 in QApplication::~QApplication (this=0x7fff8866b880, __in_chrg=<optimized out>) at kernel/qapplication.cpp:803
#27 0x00007f4143881879 in kdemain (argc=1, argv=0x7fff8866b9c8) at ../../src/main.cpp:87
#28 0x00007f41434b0a40 in __libc_start_main (main=0x400730 <main(int, char**)>, argc=1, argv=0x7fff8866b9c8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff8866b9b8) at libc-start.c:289
#29 0x0000000000400769 in _start ()

Possible duplicates by query: bug 350169, bug 349535, bug 348828, bug 347129, bug 346593.

Reported using DrKonqi