Application: konsole (2.4.2)
KDE Platform Version: 4.4.2 (KDE 4.4.2) (Compiled from sources)
Qt Version: 4.6.2
Operating System: Linux 2.6.34-rc3 i686
Distribution (Platform): Gentoo Packages

-- Information about the crash:
When searching scrollback, then switching windows, then comming back to koncole and searching again.  I have about 6 tabs open usaully.  This crash has happened twice now in two days. This looks similar to Bug #231268

The crash can be reproduced some of the time.

 -- Backtrace:
Application: Konsole (kdeinit4), signal: Aborted
[Current thread is 1 (Thread 0xb55f3920 (LWP 3391))]

Thread 2 (Thread 0xb0b72b70 (LWP 3394)):
#0  0xffffe424 in __kernel_vsyscall ()
#1  0xb5ce00b3 in __lll_lock_wait_private () at ../nptl/sysdeps/unix/sysv/linux/i386/i686/../i486/lowlevellock.S:95
#2  0xb5c73ecd in _L_lock_9636 () from /lib/libc.so.6
#3  0xb5c726a6 in *__GI___libc_free (mem=0x8229d18) at malloc.c:3714
#4  0xb692eb00 in ?? () from //usr/lib/opengl/nvidia/lib/libnvidia-tls.so.1
#5  0xb592343c in g_source_unref_internal (source=0x8229d18, context=0x8217a98, have_lock=0) at gmain.c:1339
#6  0xb6af5000 in ~QEventDispatcherGlib (this=0x820dfd8, __in_chrg=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:366
#7  0xb69c1b0b in QThreadPrivate::finish (arg=0xb6bdd890) at thread/qthread_unix.cpp:284
#8  0xb69c1fc7 in ~__pthread_cleanup_class (arg=0xb6bdd890) at /usr/include/pthread.h:535
#9  QThreadPrivate::start (arg=0xb6bdd890) at thread/qthread_unix.cpp:253
#10 0xb691342f in start_thread (arg=0xb0b72b70) at pthread_create.c:297
#11 0xb5cd279e in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130

Thread 1 (Thread 0xb55f3920 (LWP 3391)):
[KCrash Handler]
#6  0xffffe424 in __kernel_vsyscall ()
#7  0xb5c2c6e0 in *__GI_raise (sig=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:64
#8  0xb5c2df15 in *__GI_abort () at abort.c:88
#9  0xb5c68175 in __libc_message (do_abort=2, fmt=0xb5d2b2e8 "*** glibc detected *** %s: %s: 0x%s ***\n") at ../sysdeps/unix/sysv/linux/libc_fatal.c:170
#10 0xb5c6dfc4 in malloc_printerr (action=2, str=0xb5d2b408 "free(): invalid next size (normal)", ptr=0x8a64020) at malloc.c:6197
#11 0xb5c6f693 in _int_free (av=0xb5d47380, p=0x8a64018) at malloc.c:4750
#12 0xb5c726ad in *__GI___libc_free (mem=0x8a64020) at malloc.c:3716
#13 0xb692eb00 in ?? () from //usr/lib/opengl/nvidia/lib/libnvidia-tls.so.1
#14 0xb61bc397 in QX11PaintEngine::end (this=0x86469c8) at painting/qpaintengine_x11.cpp:578
#15 0xb610b6b8 in QPainter::end (this=0xbfdb2f58) at painting/qpainter.cpp:1935
#16 0xb610c2e8 in ~QPainter (this=0xbfdb2f58, __in_chrg=<value optimized out>) at painting/qpainter.cpp:1490
#17 0xb64417df in QScrollBar::paintEvent (this=0x83ca650) at widgets/qscrollbar.cpp:547
#18 0xb60007c9 in QWidget::event (this=0x83ca650, event=0xbfdb35d4) at kernel/qwidget.cpp:8144
#19 0xb6397655 in QAbstractSlider::event (this=0x83ca650, e=0xbfdb35d4) at widgets/qabstractslider.cpp:956
#20 0xb64421eb in QScrollBar::event (this=0x83ca650, event=0xbfdb35d4) at widgets/qscrollbar.cpp:527
#21 0xb5fa15c4 in QApplicationPrivate::notify_helper (this=0x80c3138, receiver=0x83ca650, e=0xbfdb35d4) at kernel/qapplication.cpp:4300
#22 0xb5fa8cf4 in QApplication::notify (this=0xbfdb4700, receiver=0x83ca650, e=0xbfdb35d4) at kernel/qapplication.cpp:4265
#23 0xb6e10f9e in KApplication::notify (this=0xbfdb4700, receiver=0x83ca650, event=0xbfdb35d4) at /var/tmp/portage/kde-base/kdelibs-4.4.2/work/kdelibs-4.4.2/kdeui/kernel/kapplication.cpp:302
#24 0xb6ac7eb2 in QCoreApplication::notifyInternal (this=0xbfdb4700, receiver=0x83ca650, event=0xbfdb35d4) at kernel/qcoreapplication.cpp:704
#25 0xb6008ce8 in QCoreApplication::sendSpontaneousEvent (this=0x83ca770, pdev=0x81aed0c, rgn=..., offset=..., flags=68, sharedPainter=0x0, backingStore=0x81a2910)
    at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:218
#26 QWidgetPrivate::drawWidget (this=0x83ca770, pdev=0x81aed0c, rgn=..., offset=..., flags=68, sharedPainter=0x0, backingStore=0x81a2910) at kernel/qwidget.cpp:5339
#27 0xb60096a4 in QWidgetPrivate::paintSiblingsRecursive (this=0x83ca098, pdev=0x81aed0c, siblings=..., index=0, rgn=..., offset=..., flags=68, sharedPainter=0x0, backingStore=0x81a2910)
    at kernel/qwidget.cpp:5452
#28 0xb6009506 in QWidgetPrivate::paintSiblingsRecursive (this=0x83ca098, pdev=0x81aed0c, siblings=..., index=6, rgn=..., offset=..., flags=68, sharedPainter=0x0, backingStore=0x81a2910)
    at kernel/qwidget.cpp:5439
#29 0xb6008748 in QWidgetPrivate::drawWidget (this=0x83ca098, pdev=0x81aed0c, rgn=..., offset=..., flags=68, sharedPainter=0x0, backingStore=0x81a2910) at kernel/qwidget.cpp:5388
#30 0xb61d433f in QWidgetBackingStore::sync (this=0x81a2910) at painting/qbackingstore.cpp:1283
#31 0xb5ff8feb in QWidgetPrivate::syncBackingStore (this=0x8182ad8) at kernel/qwidget.cpp:1672
#32 0xb60005bb in QWidget::event (this=0x81830b0, event=0x86c19d0) at kernel/qwidget.cpp:8291
#33 0xb6402caf in QMainWindow::event (this=0x81830b0, event=0x86c19d0) at widgets/qmainwindow.cpp:1433
#34 0xb6f01f97 in KMainWindow::event (this=0x81830b0, ev=0x86c19d0) at /var/tmp/portage/kde-base/kdelibs-4.4.2/work/kdelibs-4.4.2/kdeui/widgets/kmainwindow.cpp:1103
#35 0xb6f4830d in KXmlGuiWindow::event (this=0x81830b0, ev=0x86c19d0) at /var/tmp/portage/kde-base/kdelibs-4.4.2/work/kdelibs-4.4.2/kdeui/xmlgui/kxmlguiwindow.cpp:131
#36 0xb5fa15c4 in QApplicationPrivate::notify_helper (this=0x80c3138, receiver=0x81830b0, e=0x86c19d0) at kernel/qapplication.cpp:4300
#37 0xb5fa8cf4 in QApplication::notify (this=0xbfdb4700, receiver=0x81830b0, e=0x86c19d0) at kernel/qapplication.cpp:4265
#38 0xb6e10f9e in KApplication::notify (this=0xbfdb4700, receiver=0x81830b0, event=0x86c19d0) at /var/tmp/portage/kde-base/kdelibs-4.4.2/work/kdelibs-4.4.2/kdeui/kernel/kapplication.cpp:302
#39 0xb6ac7eb2 in QCoreApplication::notifyInternal (this=0xbfdb4700, receiver=0x81830b0, event=0x86c19d0) at kernel/qcoreapplication.cpp:704
#40 0xb6ac8dee in QCoreApplication::sendEvent (receiver=0x0, event_type=0, data=0x805a850) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#41 QCoreApplicationPrivate::sendPostedEvents (receiver=0x0, event_type=0, data=0x805a850) at kernel/qcoreapplication.cpp:1345
#42 0xb6ac8f9e in QCoreApplication::sendPostedEvents (receiver=0x0, event_type=0) at kernel/qcoreapplication.cpp:1238
#43 0xb6af4720 in QCoreApplication::sendPostedEvents (s=0x80c52c0) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:220
#44 postEventSourceDispatch (s=0x80c52c0) at kernel/qeventdispatcher_glib.cpp:276
#45 0xb5923a3f in g_main_dispatch (context=0x80c5240) at gmain.c:1960
#46 IA__g_main_context_dispatch (context=0x80c5240) at gmain.c:2513
#47 0xb592732b in g_main_context_iterate (context=0x80c5240, block=1, dispatch=1, self=0x80c1df0) at gmain.c:2591
#48 0xb59274b9 in IA__g_main_context_iteration (context=0x80c5240, may_block=1) at gmain.c:2654
#49 0xb6af4212 in QEventDispatcherGlib::processEvents (this=0x80c2b20, flags=...) at kernel/qeventdispatcher_glib.cpp:412
#50 0xb605ddf6 in QGuiEventDispatcherGlib::processEvents (this=0x80c2b20, flags=...) at kernel/qguieventdispatcher_glib.cpp:204
#51 0xb6ac649b in QEventLoop::processEvents (this=0xbfdb4680, flags=...) at kernel/qeventloop.cpp:149
#52 0xb6ac68fa in QEventLoop::exec (this=0xbfdb4680, flags=...) at kernel/qeventloop.cpp:201
#53 0xb6ac9069 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:981
#54 0xb5fa1668 in QApplication::exec () at kernel/qapplication.cpp:3579
#55 0xb3ea867f in kdemain (argc=3, argv=0x80a7050) at /var/tmp/portage/kde-base/konsole-4.4.2/work/konsole-4.4.2/konsole/src/main.cpp:77
#56 0x0804e6d7 in launch (argc=3, _name=0x80b0374 "/usr/bin/konsole", args=0x80b03c5 "", cwd=0x0, envc=0, envs=0x80b03ca "", reset_env=false, tty=0x0, avoid_loops=false, startup_id_str=0x80517c5 "0")
    at /var/tmp/portage/kde-base/kdelibs-4.4.2/work/kdelibs-4.4.2/kinit/kinit.cpp:710
#57 0x0804ee75 in handle_launcher_request (sock=8, who=<value optimized out>) at /var/tmp/portage/kde-base/kdelibs-4.4.2/work/kdelibs-4.4.2/kinit/kinit.cpp:1202
#58 0x0804f2c3 in handle_requests (waitForPid=0) at /var/tmp/portage/kde-base/kdelibs-4.4.2/work/kdelibs-4.4.2/kinit/kinit.cpp:1395
#59 0x0804ffe8 in main (argc=4, argv=0xbfdb5084, envp=0xbfdb5098) at /var/tmp/portage/kde-base/kdelibs-4.4.2/work/kdelibs-4.4.2/kinit/kinit.cpp:1838

Possible duplicates by query: bug 231268, bug 228333, bug 220452.

Reported using DrKonqi