https://bugs.kde.org/show_bug.cgi?id=364417
Bug ID: 364417
Summary: Skanlit crashes out when trying to do a scan or
preview scan
Product: Skanlite
Version: 1.1
Platform: Fedora RPMs
OS: Linux
Status: UNCONFIRMED
Keywords: drkonqi
Severity: crash
Priority: NOR
Component: general
Assignee: kare.s...@iki.fi
Reporter: zenomorph....@mypostoffice.co.uk
Application: skanlite (1.1)
KDE Platform Version: 4.14.20
Qt Version: 4.8.7
Operating System: Linux 4.5.6-200.fc23.x86_64 x86_64
Distribution (Platform): Fedora RPMs
-- Information about the crash:
I had just booted into Fedora 23 and successfully run one scan with Skanlit,
but on attempting to do a second scan, the scanner light would not function
properly, my scans were dark as if half my scan bulb had turned off.
I thus closed Skanlit and restarted it to see if that re-set the scanner light,
however on opening Skanlit and trying to run a preview scan, the application
just drops out and shows the Bug reporting dialogue.
Now Skanlit crashes out everytime I try to do a scan or preview scan.
Only able to do one scan at a time with Skanlit, before it starts crashing, a
reboot of the system sorts it out, but only temporarily.
Skanlit has always had a problem when doing multiple scans, at times it allows
two or three scans before it plays up, and other times it only allows one
successful scan, then it reverts to crashing after each further attempt.
The crash can be reproduced every time.
-- Backtrace:
Application: Skanlite (skanlite), signal: Segmentation fault
Using host libthread_db library "/lib64/libthread_db.so.1".
[Current thread is 1 (Thread 0x7fd8c12f5900 (LWP 3060))]
Thread 5 (Thread 0x7fd89b538700 (LWP 3064)):
#0 0x00007fd8bd29cb1d in poll () from /lib64/libc.so.6
#1 0x00007fd8b506cd8c in linux_udev_event_thread_main () from
/lib64/libusb-1.0.so.0
#2 0x00007fd8bde0961a in start_thread () from /lib64/libpthread.so.0
#3 0x00007fd8bd2a859d in clone () from /lib64/libc.so.6
Thread 4 (Thread 0x7fd89bf4d700 (LWP 3066)):
#0 0x00007ffccd9d7c3f in clock_gettime ()
#1 0x00007fd8bd2b6816 in clock_gettime () from /lib64/libc.so.6
#2 0x00007fd8be106c35 in qt_gettime() () from /lib64/libQtCore.so.4
#3 0x00007fd8be1ecd15 in QTimerInfoList::timerWait(timeval&) () from
/lib64/libQtCore.so.4
#4 0x00007fd8be1eb54c in timerSourcePrepareHelper(GTimerSource*, int*) () from
/lib64/libQtCore.so.4
#5 0x00007fd8be1eb615 in timerSourcePrepare(_GSource*, int*) () from
/lib64/libQtCore.so.4
#6 0x00007fd8b8b8672d in g_main_context_prepare () from
/lib64/libglib-2.0.so.0
#7 0x00007fd8b8b870bb in g_main_context_iterate.isra () from
/lib64/libglib-2.0.so.0
#8 0x00007fd8b8b8729c in g_main_context_iteration () from
/lib64/libglib-2.0.so.0
#9 0x00007fd8be1ebe7e in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /lib64/libQtCore.so.4
#10 0x00007fd8be1ba131 in
QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from
/lib64/libQtCore.so.4
#11 0x00007fd8be1ba4a5 in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/lib64/libQtCore.so.4
#12 0x00007fd8be0a9a99 in QThread::exec() () from /lib64/libQtCore.so.4
#13 0x00007fd8be19a203 in QInotifyFileSystemWatcherEngine::run() () from
/lib64/libQtCore.so.4
#14 0x00007fd8be0ac38c in QThreadPrivate::start(void*) () from
/lib64/libQtCore.so.4
#15 0x00007fd8bde0961a in start_thread () from /lib64/libpthread.so.0
#16 0x00007fd8bd2a859d in clone () from /lib64/libc.so.6
Thread 3 (Thread 0x7fd88ab80700 (LWP 3067)):
#0 0x00007fd8bde0a6bd in pthread_join () from /lib64/libpthread.so.0
#1 0x00007fd8ba5906b7 in sanei_thread_waitpid () from /lib64/libsane.so.1
#2 0x00007fd898421af2 in do_cancel () from
/usr/lib64/sane/libsane-plustek.so.1
#3 0x00007fd8984351e0 in sane_plustek_read () from
/usr/lib64/sane/libsane-plustek.so.1
#4 0x00007fd8c0ad3207 in KSaneIface::KSanePreviewThread::readData() () from
/lib64/libksane.so.0
#5 0x00007fd8c0ad3bd8 in KSaneIface::KSanePreviewThread::run() () from
/lib64/libksane.so.0
#6 0x00007fd8be0ac38c in QThreadPrivate::start(void*) () from
/lib64/libQtCore.so.4
#7 0x00007fd8bde0961a in start_thread () from /lib64/libpthread.so.0
#8 0x00007fd8bd2a859d in clone () from /lib64/libc.so.6
Thread 2 (Thread 0x7fd889b7e700 (LWP 3068)):
#0 0x00007ffccd9d7c3f in clock_gettime ()
#1 0x00007fd8bd2b6816 in clock_gettime () from /lib64/libc.so.6
#2 0x00007fd8b50664d8 in handle_timeouts_locked () from /lib64/libusb-1.0.so.0
#3 0x00007fd8b5066b11 in handle_events.part () from /lib64/libusb-1.0.so.0
#4 0x00007fd8b5067849 in libusb_handle_events_timeout_completed () from
/lib64/libusb-1.0.so.0
#5 0x00007fd8b5067980 in libusb_handle_events_completed () from
/lib64/libusb-1.0.so.0
#6 0x00007fd8b50682b1 in sync_transfer_wait_for_completion () from
/lib64/libusb-1.0.so.0
#7 0x00007fd8b50683bd in do_sync_bulk_transfer () from /lib64/libusb-1.0.so.0
#8 0x00007fd8b506878f in libusb_bulk_transfer () from /lib64/libusb-1.0.so.0
#9 0x00007fd8ba58b156 in sanei_usb_write_bulk () from /lib64/libsane.so.1
#10 0x00007fd8ba590c14 in sanei_lm983x_read () from /lib64/libsane.so.1
#11 0x00007fd89842ea37 in usbDev_Prepare () from
/usr/lib64/sane/libsane-plustek.so.1
#12 0x00007fd898431c4d in reader_process () from
/usr/lib64/sane/libsane-plustek.so.1
#13 0x00007fd8ba59043e in local_thread () from /lib64/libsane.so.1
#14 0x00007fd8bde0961a in start_thread () from /lib64/libpthread.so.0
#15 0x00007fd8bd2a859d in clone () from /lib64/libc.so.6
Thread 1 (Thread 0x7fd8c12f5900 (LWP 3060)):
[KCrash Handler]
#6 0x00007fd8bf20cfc7 in void
qt_scale_image_32bit<Blend_RGB32_on_RGB32_NoAlpha>(unsigned char*, int,
unsigned char const*, int, int, QRectF const&, QRectF const&, QRect const&,
Blend_RGB32_on_RGB32_NoAlpha) () from /lib64/libQtGui.so.4
#7 0x00007fd8bf208563 in qt_scale_image_rgb32_on_rgb32(unsigned char*, int,
unsigned char const*, int, int, QRectF const&, QRectF const&, QRect const&,
int) () from /lib64/libQtGui.so.4
#8 0x00007fd8bf2d605c in QRasterPaintEngine::drawImage(QRectF const&, QImage
const&, QRectF const&, QFlags<Qt::ImageConversionFlag>) () from
/lib64/libQtGui.so.4
#9 0x00007fd8bf261a28 in QPainter::drawImage(QRectF const&, QImage const&,
QRectF const&, QFlags<Qt::ImageConversionFlag>) () from /lib64/libQtGui.so.4
#10 0x00007fd8c0ac2f93 in KSaneIface::KSaneViewer::drawBackground(QPainter*,
QRectF const&) () from /lib64/libksane.so.0
#11 0x00007fd8bf74ef98 in QGraphicsView::paintEvent(QPaintEvent*) () from
/lib64/libQtGui.so.4
#12 0x00007fd8bf15a130 in QWidget::event(QEvent*) () from /lib64/libQtGui.so.4
#13 0x00007fd8bf51f11e in QFrame::event(QEvent*) () from /lib64/libQtGui.so.4
#14 0x00007fd8bf74da8f in QGraphicsView::viewportEvent(QEvent*) () from
/lib64/libQtGui.so.4
#15 0x00007fd8be1bba26 in
QCoreApplicationPrivate::sendThroughObjectEventFilters(QObject*, QEvent*) ()
from /lib64/libQtCore.so.4
#16 0x00007fd8bf10391c in QApplicationPrivate::notify_helper(QObject*, QEvent*)
() from /lib64/libQtGui.so.4
#17 0x00007fd8bf10a796 in QApplication::notify(QObject*, QEvent*) () from
/lib64/libQtGui.so.4
#18 0x00007fd8bfe8f63a in KApplication::notify(QObject*, QEvent*) () from
/lib64/libkdeui.so.5
#19 0x00007fd8be1bb8bd in QCoreApplication::notifyInternal(QObject*, QEvent*)
() from /lib64/libQtCore.so.4
#20 0x00007fd8bf154787 in QWidgetPrivate::drawWidget(QPaintDevice*, QRegion
const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () from
/lib64/libQtGui.so.4
#21 0x00007fd8bf15519f in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*,
QList<QObject*> const&, int, QRegion const&, QPoint const&, int, QPainter*,
QWidgetBackingStore*) () from /lib64/libQtGui.so.4
#22 0x00007fd8bf1550a3 in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*,
QList<QObject*> const&, int, QRegion const&, QPoint const&, int, QPainter*,
QWidgetBackingStore*) () from /lib64/libQtGui.so.4
#23 0x00007fd8bf1550a3 in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*,
QList<QObject*> const&, int, QRegion const&, QPoint const&, int, QPainter*,
QWidgetBackingStore*) () from /lib64/libQtGui.so.4
#24 0x00007fd8bf154316 in QWidgetPrivate::drawWidget(QPaintDevice*, QRegion
const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () from
/lib64/libQtGui.so.4
#25 0x00007fd8bf15519f in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*,
QList<QObject*> const&, int, QRegion const&, QPoint const&, int, QPainter*,
QWidgetBackingStore*) () from /lib64/libQtGui.so.4
#26 0x00007fd8bf1550a3 in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*,
QList<QObject*> const&, int, QRegion const&, QPoint const&, int, QPainter*,
QWidgetBackingStore*) () from /lib64/libQtGui.so.4
#27 0x00007fd8bf154316 in QWidgetPrivate::drawWidget(QPaintDevice*, QRegion
const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () from
/lib64/libQtGui.so.4
#28 0x00007fd8bf15519f in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*,
QList<QObject*> const&, int, QRegion const&, QPoint const&, int, QPainter*,
QWidgetBackingStore*) () from /lib64/libQtGui.so.4
#29 0x00007fd8bf1550a3 in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*,
QList<QObject*> const&, int, QRegion const&, QPoint const&, int, QPainter*,
QWidgetBackingStore*) () from /lib64/libQtGui.so.4
#30 0x00007fd8bf1550a3 in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*,
QList<QObject*> const&, int, QRegion const&, QPoint const&, int, QPainter*,
QWidgetBackingStore*) () from /lib64/libQtGui.so.4
#31 0x00007fd8bf1550a3 in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*,
QList<QObject*> const&, int, QRegion const&, QPoint const&, int, QPainter*,
QWidgetBackingStore*) () from /lib64/libQtGui.so.4
#32 0x00007fd8bf154316 in QWidgetPrivate::drawWidget(QPaintDevice*, QRegion
const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () from
/lib64/libQtGui.so.4
#33 0x00007fd8bf15519f in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*,
QList<QObject*> const&, int, QRegion const&, QPoint const&, int, QPainter*,
QWidgetBackingStore*) () from /lib64/libQtGui.so.4
#34 0x00007fd8bf154316 in QWidgetPrivate::drawWidget(QPaintDevice*, QRegion
const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () from
/lib64/libQtGui.so.4
#35 0x00007fd8bf15519f in QWidgetPrivate::paintSiblingsRecursive(QPaintDevice*,
QList<QObject*> const&, int, QRegion const&, QPoint const&, int, QPainter*,
QWidgetBackingStore*) () from /lib64/libQtGui.so.4
#36 0x00007fd8bf154316 in QWidgetPrivate::drawWidget(QPaintDevice*, QRegion
const&, QPoint const&, int, QPainter*, QWidgetBackingStore*) () from
/lib64/libQtGui.so.4
#37 0x00007fd8bf324862 in QWidgetBackingStore::sync() () from
/lib64/libQtGui.so.4
#38 0x00007fd8bf1474a0 in QWidgetPrivate::syncBackingStore() () from
/lib64/libQtGui.so.4
#39 0x00007fd8bf15a218 in QWidget::event(QEvent*) () from /lib64/libQtGui.so.4
#40 0x00007fd8bf10393c in QApplicationPrivate::notify_helper(QObject*, QEvent*)
() from /lib64/libQtGui.so.4
#41 0x00007fd8bf10a796 in QApplication::notify(QObject*, QEvent*) () from
/lib64/libQtGui.so.4
#42 0x00007fd8bfe8f63a in KApplication::notify(QObject*, QEvent*) () from
/lib64/libkdeui.so.5
#43 0x00007fd8be1bb8bd in QCoreApplication::notifyInternal(QObject*, QEvent*)
() from /lib64/libQtCore.so.4
#44 0x00007fd8be1beed6 in QCoreApplicationPrivate::sendPostedEvents(QObject*,
int, QThreadData*) () from /lib64/libQtCore.so.4
#45 0x00007fd8bf722d3a in QGraphicsScenePrivate::_q_processDirtyItems() () from
/lib64/libQtGui.so.4
#46 0x00007fd8bf7268a9 in QGraphicsScene::qt_static_metacall(QObject*,
QMetaObject::Call, int, void**) [clone .part.171] () from /lib64/libQtGui.so.4
#47 0x00007fd8be1d57f1 in QObject::event(QEvent*) () from /lib64/libQtCore.so.4
#48 0x00007fd8bf73525b in QGraphicsScene::event(QEvent*) () from
/lib64/libQtGui.so.4
#49 0x00007fd8bf10393c in QApplicationPrivate::notify_helper(QObject*, QEvent*)
() from /lib64/libQtGui.so.4
#50 0x00007fd8bf10a796 in QApplication::notify(QObject*, QEvent*) () from
/lib64/libQtGui.so.4
#51 0x00007fd8bfe8f63a in KApplication::notify(QObject*, QEvent*) () from
/lib64/libkdeui.so.5
#52 0x00007fd8be1bb8bd in QCoreApplication::notifyInternal(QObject*, QEvent*)
() from /lib64/libQtCore.so.4
#53 0x00007fd8be1beed6 in QCoreApplicationPrivate::sendPostedEvents(QObject*,
int, QThreadData*) () from /lib64/libQtCore.so.4
#54 0x00007fd8be1ebcee in postEventSourceDispatch(_GSource*, int (*)(void*),
void*) () from /lib64/libQtCore.so.4
#55 0x00007fd8b8b86e5a in g_main_context_dispatch () from
/lib64/libglib-2.0.so.0
#56 0x00007fd8b8b871f0 in g_main_context_iterate.isra () from
/lib64/libglib-2.0.so.0
#57 0x00007fd8b8b8729c in g_main_context_iteration () from
/lib64/libglib-2.0.so.0
#58 0x00007fd8be1ebe5e in
QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) ()
from /lib64/libQtCore.so.4
#59 0x00007fd8bf1ac436 in
QGuiEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>)
() from /lib64/libQtGui.so.4
#60 0x00007fd8be1ba131 in
QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from
/lib64/libQtCore.so.4
#61 0x00007fd8be1ba4a5 in
QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from
/lib64/libQtCore.so.4
#62 0x00007fd8be1c0039 in QCoreApplication::exec() () from
/lib64/libQtCore.so.4
#63 0x00005641cae09ef0 in main ()
Reported using DrKonqi
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