Can you describe better what triggers this bug? Unfortunately, without debug symbols, the backtrace is unreadable. I don't know if there is an Ubuntu package that would allow you to install them. But you could also try compiling from source with --enable-debug.
Riki On 11/1/18 9:20 PM, Jeff Defoe wrote: > ( 1) lyx: lyx() [0x8de95d] > ( 2) lyx: lyx() [0x8ddddb] > ( 3) lyx: lyx() [0x5a13dc] > ( 4) /lib/x86_64-linux-gnu/libc.so.6: > /lib/x86_64-linux-gnu/libc.so.6(+0x3ef20) [0x7f83f8afaf20] > ( 5) lyx: lyx() [0x902e5d] > ( 6) lyx: lyx() [0x90164c] > ( 7) lyx: lyx() [0x90b451] > ( 8) lyx: lyx() [0x6e9d1b] > ( 9) lyx: lyx() [0x6eba5b] > ( 10) lyx: lyx() [0x661239] > ( 11) lyx: lyx() [0x661932] > ( 12) lyx: lyx() [0x8b7b22] > ( 13) lyx: lyx() [0x7e899f] > ( 14) lyx: lyx() [0x6eb595] > ( 15) lyx: lyx() [0x6eba16] > ( 16) lyx: lyx() [0x661239] > ( 17) lyx: lyx() [0x661932] > ( 18) lyx: lyx() [0x6adf43] > ( 19) lyx: lyx() [0x93e374] > ( 20) /usr/lib/x86_64-linux-gnu/libQtGui.so.4: QWidget::event(QEvent*) > ( 21) /usr/lib/x86_64-linux-gnu/libQtGui.so.4: QFrame::event(QEvent*) > ( 22) /usr/lib/x86_64-linux-gnu/libQtCore.so.4: > QCoreApplicationPrivate::sendThroughObjectEventFilters(QObject*, QEvent*) > ( 23) /usr/lib/x86_64-linux-gnu/libQtGui.so.4: > QApplicationPrivate::notify_helper(QObject*, QEvent*) > ( 24) /usr/lib/x86_64-linux-gnu/libQtGui.so.4: > QApplication::notify(QObject*, QEvent*) > ( 25) lyx: lyx() [0x8f134c] > ( 26) /usr/lib/x86_64-linux-gnu/libQtCore.so.4: > QCoreApplication::notifyInternal(QObject*, QEvent*) > ( 27) /usr/lib/x86_64-linux-gnu/libQtGui.so.4: > QWidgetPrivate::drawWidget(QPaintDevice*, QRegion const&, QPoint > const&, int, QPainter*, QWidgetBackingStore*) > ( 28) /usr/lib/x86_64-linux-gnu/libQtGui.so.4: > /usr/lib/x86_64-linux-gnu/libQtGui.so.4(+0x3eadc8) [0x7f83fa400dc8] > ( 29) /usr/lib/x86_64-linux-gnu/libQtGui.so.4: > QWidgetPrivate::syncBackingStore() > ( 30) /usr/lib/x86_64-linux-gnu/libQtGui.so.4: QWidget::event(QEvent*) > ( 31) /usr/lib/x86_64-linux-gnu/libQtGui.so.4: QMainWindow::event(QEvent*) > ( 32) lyx: lyx() [0x92d70d] > ( 33) /usr/lib/x86_64-linux-gnu/libQtGui.so.4: > QApplicationPrivate::notify_helper(QObject*, QEvent*) > ( 34) /usr/lib/x86_64-linux-gnu/libQtGui.so.4: > QApplication::notify(QObject*, QEvent*) > ( 35) lyx: lyx() [0x8f134c] > ( 36) /usr/lib/x86_64-linux-gnu/libQtCore.so.4: > QCoreApplication::notifyInternal(QObject*, QEvent*) > ( 37) /usr/lib/x86_64-linux-gnu/libQtCore.so.4: > QCoreApplicationPrivate::sendPostedEvents(QObject*, int, QThreadData*) > ( 38) /usr/lib/x86_64-linux-gnu/libQtCore.so.4: > /usr/lib/x86_64-linux-gnu/libQtCore.so.4(+0x1bb09e) [0x7f83f9cdf09e] > ( 39) /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0: > /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0(g_main_context_dispatch+0x2e7) > [0x7f83f85ee287] > ( 40) /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0: > /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0(+0x4c4c0) [0x7f83f85ee4c0] > ( 41) /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0: > /usr/lib/x86_64-linux-gnu/libglib-2.0.so.0(g_main_context_iteration+0x2c) > [0x7f83f85ee54c] > ( 42) /usr/lib/x86_64-linux-gnu/libQtCore.so.4: > QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) > ( 43) /usr/lib/x86_64-linux-gnu/libQtGui.so.4: > /usr/lib/x86_64-linux-gnu/libQtGui.so.4(+0x272666) [0x7f83fa288666] > ( 44) /usr/lib/x86_64-linux-gnu/libQtCore.so.4: > QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) > ( 45) /usr/lib/x86_64-linux-gnu/libQtCore.so.4: > QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) > ( 46) /usr/lib/x86_64-linux-gnu/libQtCore.so.4: QCoreApplication::exec() > ( 47) lyx: lyx() [0x5aa17d] > ( 48) lyx: lyx() [0x43d5ad] > ( 49) /lib/x86_64-linux-gnu/libc.so.6: > /lib/x86_64-linux-gnu/libc.so.6(__libc_start_main+0xe7) [0x7f83f8addb97] > ( 50) lyx: lyx() [0x449539] >
