Application: plasmashell (5.12.9)

Qt Version: 5.9.5
Frameworks Version: 5.44.0
Operating System: Linux 5.3.0-28-generic x86_64
Distribution: Ubuntu 18.04.4 LTS

-- Information about the crash:
- What I was doing when the application crashed:
I was switching between wifi access points using network widget. I have application panel at the top of the screen that has contains the widget and Late dock at the bottom.

The crash does not seem to be reproducible.

-- Backtrace:
Application: Plasma (plasmashell), signal: Segmentation fault
Using host libthread_db library "/lib/x86_64-linux-gnu/libthread_db.so.1".
[Current thread is 1 (Thread 0x7f957feda800 (LWP 1821))]

Thread 14 (Thread 0x7f948d9d6700 (LWP 2461)):
[KCrash Handler]
#6  0x00007f957d90a640 in QSGSimpleTextureNode::texture() const () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#7  0x00007f94c735b963 in  () at /usr/lib/x86_64-linux-gnu/qt5/qml/org/kde/kquickcontrolsaddons/libkquickcontrolsaddonsplugin.so
#8  0x00007f9579dc366f in QMetaObject::activate(QObject*, int, int, void**) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f957d98ca30 in QQuickWindowPrivate::renderSceneGraph(QSize const&) () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#10 0x00007f957d937bbc in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#11 0x00007f957d93cac8 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#12 0x00007f9579bb617d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#13 0x00007f9578d376db in start_thread (arg=0x7f948d9d6700) at pthread_create.c:463
#14 0x00007f95794b188f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 13 (Thread 0x7f948e7fc700 (LWP 2453)):
#0  0x00007f9578d3d9f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55e27d317940) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f9578d3d9f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x55e27d3178f0, cond=0x55e27d317918) at pthread_cond_wait.c:502
#2  0x00007f9578d3d9f3 in __pthread_cond_wait (cond=0x55e27d317918, mutex=0x55e27d3178f0) at pthread_cond_wait.c:655
#3  0x00007f9579bb75ab in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f957d93c6a8 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#5  0x00007f957d93cb0a in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#6  0x00007f9579bb617d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f9578d376db in start_thread (arg=0x7f948e7fc700) at pthread_create.c:463
#8  0x00007f95794b188f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 12 (Thread 0x7f948effd700 (LWP 2421)):
#0  0x00007f9578d3d9f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55e27d01b204) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f9578d3d9f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x55e27d01b1b0, cond=0x55e27d01b1d8) at pthread_cond_wait.c:502
#2  0x00007f9578d3d9f3 in __pthread_cond_wait (cond=0x55e27d01b1d8, mutex=0x55e27d01b1b0) at pthread_cond_wait.c:655
#3  0x00007f9579bb75ab in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f957d93c6a8 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#5  0x00007f957d93cb0a in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#6  0x00007f9579bb617d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f9578d376db in start_thread (arg=0x7f948effd700) at pthread_create.c:463
#8  0x00007f95794b188f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 11 (Thread 0x7f948ffff700 (LWP 2306)):
#0  0x00007f9578d3d9f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55e27cd87a04) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f9578d3d9f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x55e27cd879b0, cond=0x55e27cd879d8) at pthread_cond_wait.c:502
#2  0x00007f9578d3d9f3 in __pthread_cond_wait (cond=0x55e27cd879d8, mutex=0x55e27cd879b0) at pthread_cond_wait.c:655
#3  0x00007f9579bb75ab in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f957d93c6a8 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#5  0x00007f957d93cb0a in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#6  0x00007f9579bb617d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f9578d376db in start_thread (arg=0x7f948ffff700) at pthread_create.c:463
#8  0x00007f95794b188f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 10 (Thread 0x7f94a3fff700 (LWP 2205)):
#0  0x00007f9578d3d9f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55e27c5eab90) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f9578d3d9f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x55e27c5eab40, cond=0x55e27c5eab68) at pthread_cond_wait.c:502
#2  0x00007f9578d3d9f3 in __pthread_cond_wait (cond=0x55e27c5eab68, mutex=0x55e27c5eab40) at pthread_cond_wait.c:655
#3  0x00007f9579bb75ab in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f957d93c6a8 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#5  0x00007f957d93cb0a in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#6  0x00007f9579bb617d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f9578d376db in start_thread (arg=0x7f94a3fff700) at pthread_create.c:463
#8  0x00007f95794b188f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 9 (Thread 0x7f94ab4c4700 (LWP 2135)):
#0  0x00007ffe8e12e747 in  ()
#1  0x00007ffe8e12e982 in clock_gettime ()
#2  0x00007f95794c0ea6 in __GI___clock_gettime (clock_id=1, tp=0x7f94ab4c3ad0) at ../sysdeps/unix/clock_gettime.c:115
#3  0x00007f9579ded1c1 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f9579deb9f9 in QTimerInfoList::updateCurrentTime() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f9579debfd5 in QTimerInfoList::timerWait(timespec&) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f9579ded61e in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f957400bb28 in g_main_context_prepare () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#8  0x00007f957400c4fb in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#9  0x00007f957400c6dc in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#10 0x00007f9579ded8ab in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#11 0x00007f9579d9290a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#12 0x00007f9579bb123a in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#13 0x00007f94ade21747 in KCupsConnection::run() () at /usr/lib/x86_64-linux-gnu/libkcupslib.so
#14 0x00007f9579bb617d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#15 0x00007f9578d376db in start_thread (arg=0x7f94ab4c4700) at pthread_create.c:463
#16 0x00007f95794b188f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 8 (Thread 0x7f94bffff700 (LWP 2055)):
#0  0x00007f9578d3d9f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x55e27b885380) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f9578d3d9f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x55e27b885330, cond=0x55e27b885358) at pthread_cond_wait.c:502
#2  0x00007f9578d3d9f3 in __pthread_cond_wait (cond=0x55e27b885358, mutex=0x55e27b885330) at pthread_cond_wait.c:655
#3  0x00007f9579bb75ab in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f957d93c6a8 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#5  0x00007f957d93cb0a in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#6  0x00007f9579bb617d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f9578d376db in start_thread (arg=0x7f94bffff700) at pthread_create.c:463
#8  0x00007f95794b188f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 7 (Thread 0x7f94c57b6700 (LWP 2049)):
#0  0x00007f95794a4bf9 in __GI___poll (fds=0x7f94c00051c0, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f957400c5c9 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f957400c6dc in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f9579ded8ab in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f9579d9290a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f9579bb123a in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f957d8bd2a6 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#7  0x00007f9579bb617d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f9578d376db in start_thread (arg=0x7f94c57b6700) at pthread_create.c:463
#9  0x00007f95794b188f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 6 (Thread 0x7f955953c700 (LWP 1949)):
#0  0x00007f9578d3d9f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7f957f892fb8) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f9578d3d9f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x7f957f892f68, cond=0x7f957f892f90) at pthread_cond_wait.c:502
#2  0x00007f9578d3d9f3 in __pthread_cond_wait (cond=0x7f957f892f90, mutex=0x7f957f892f68) at pthread_cond_wait.c:655
#3  0x00007f957f59c5f4 in  () at /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#4  0x00007f957f59c639 in  () at /usr/lib/x86_64-linux-gnu/libQt5Script.so.5
#5  0x00007f9578d376db in start_thread (arg=0x7f955953c700) at pthread_create.c:463
#6  0x00007f95794b188f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 5 (Thread 0x7f955b9a9700 (LWP 1908)):
#0  0x00007f9574052644 in g_mutex_unlock () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f957400bac0 in g_main_context_prepare () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f957400c4fb in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f957400c6dc in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f9579ded8ab in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f9579d9290a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f9579bb123a in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f957cd236f5 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f9579bb617d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f9578d376db in start_thread (arg=0x7f955b9a9700) at pthread_create.c:463
#10 0x00007f95794b188f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 4 (Thread 0x7f9561c18700 (LWP 1906)):
#0  0x00007f9574052644 in g_mutex_unlock () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#1  0x00007f957400bb18 in g_main_context_prepare () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f957400c4fb in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f957400c6dc in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f9579ded8ab in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f9579d9290a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f9579bb123a in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f957cd236f5 in  () at /usr/lib/x86_64-linux-gnu/libQt5Qml.so.5
#8  0x00007f9579bb617d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#9  0x00007f9578d376db in start_thread (arg=0x7f9561c18700) at pthread_create.c:463
#10 0x00007f95794b188f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 3 (Thread 0x7f956365d700 (LWP 1854)):
#0  0x00007f95794a00b4 in __GI___libc_read (fd=7, buf=0x7f956365cb60, nbytes=16) at ../sysdeps/unix/sysv/linux/read.c:27
#1  0x00007f95740512b0 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#2  0x00007f957400c0b7 in g_main_context_check () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#3  0x00007f957400c570 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#4  0x00007f957400c6dc in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#5  0x00007f9579ded8ab in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#6  0x00007f9579d9290a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#7  0x00007f9579bb123a in QThread::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#8  0x00007f957a26ad45 in  () at /usr/lib/x86_64-linux-gnu/libQt5DBus.so.5
#9  0x00007f9579bb617d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#10 0x00007f9578d376db in start_thread (arg=0x7f956365d700) at pthread_create.c:463
#11 0x00007f95794b188f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 2 (Thread 0x7f9569c31700 (LWP 1834)):
#0  0x00007f95794a4bf9 in __GI___poll (fds=0x7f9569c30ca8, nfds=1, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:29
#1  0x00007f957e4c9747 in  () at /usr/lib/x86_64-linux-gnu/libxcb.so.1
#2  0x00007f957e4cb36a in xcb_wait_for_event () at /usr/lib/x86_64-linux-gnu/libxcb.so.1
#3  0x00007f956c5ca5e9 in  () at /usr/lib/x86_64-linux-gnu/libQt5XcbQpa.so.5
#4  0x00007f9579bb617d in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#5  0x00007f9578d376db in start_thread (arg=0x7f9569c31700) at pthread_create.c:463
#6  0x00007f95794b188f in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:95

Thread 1 (Thread 0x7f957feda800 (LWP 1821)):
#0  0x00007f9578d3d9f3 in futex_wait_cancelable (private=<optimized out>, expected=0, futex_word=0x7f95640157e0) at ../sysdeps/unix/sysv/linux/futex-internal.h:88
#1  0x00007f9578d3d9f3 in __pthread_cond_wait_common (abstime=0x0, mutex=0x7f9564015790, cond=0x7f95640157b8) at pthread_cond_wait.c:502
#2  0x00007f9578d3d9f3 in __pthread_cond_wait (cond=0x7f95640157b8, mutex=0x7f9564015790) at pthread_cond_wait.c:655
#3  0x00007f9579bb75ab in QWaitCondition::wait(QMutex*, unsigned long) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#4  0x00007f957d938e7d in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#5  0x00007f957d939c52 in  () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#6  0x00007f957d996726 in QQuickWindow::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#7  0x00007f957f8d0323 in PlasmaQuick::Dialog::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libKF5PlasmaQuick.so.5
#8  0x00007f957ad9c83c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#9  0x00007f957ada4104 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#10 0x00007f9579d948d8 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#11 0x00007f957a5ec1a1 in QWindowPrivate::deliverUpdateRequest() () at /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#12 0x00007f957a5ec6b9 in QWindow::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Gui.so.5
#13 0x00007f957d9966c5 in QQuickWindow::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Quick.so.5
#14 0x00007f957f8d0323 in PlasmaQuick::Dialog::event(QEvent*) () at /usr/lib/x86_64-linux-gnu/libKF5PlasmaQuick.so.5
#15 0x00007f957ad9c83c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#16 0x00007f957ada4104 in QApplication::notify(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Widgets.so.5
#17 0x00007f9579d948d8 in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#18 0x00007f9579decd2e in QTimerInfoList::activateTimers() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#19 0x00007f9579ded4f1 in  () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#20 0x00007f957400c417 in g_main_context_dispatch () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#21 0x00007f957400c650 in  () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#22 0x00007f957400c6dc in g_main_context_iteration () at /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0
#23 0x00007f9579ded88f in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#24 0x00007f9579d9290a in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#25 0x00007f9579d9b9b4 in QCoreApplication::exec() () at /usr/lib/x86_64-linux-gnu/libQt5Core.so.5
#26 0x000055e279c42d6a in  ()
#27 0x00007f95793b1b97 in __libc_start_main (main=0x55e279c42390, argc=1, argv=0x7ffe8e0b2e18, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7ffe8e0b2e08) at ../csu/libc-start.c:310
#28 0x000055e279c4310a in _start ()

Reported using DrKonqi