Using qupzilla I get te following backtrace: #0 0x0000000000000040 in ?? () #1 0x00007ffff1a6d5fe in hb_getSFntTable(void*, unsigned int, unsigned char*, unsigned int*) () from /usr/lib64/libQt5Gui.so.5 #2 0x00007ffff4496b53 in HB_LoadFace () from /usr/lib64/libQt5Core.so.5 #3 0x00007ffff1a70784 in QFontEngine::harfbuzzFont() const () from /usr/lib64/libQt5Gui.so.5 #4 0x00007ffff1a8f72e in QTextEngine::shapeTextWithHarfbuzz(QScriptItem const&, unsigned short const*, int, QFontEngine *, QVector<unsigned int> const&, bool) const () from /usr/lib64/libQt5Gui.so.5 #5 0x00007ffff1a92dbf in QTextEngine::shapeText(int) const () from /usr/lib64/libQt5Gui.so.5 #6 0x00007ffff1a9381c in QTextEngine::shape(int) const () from /usr/lib64/libQt5Gui.so.5 #7 0x00007ffff1aa5d61 in QTextLine::layout_helper(int) () from /usr/lib64/libQt5Gui.so.5 #8 0x00007ffff1aa7145 in QTextLine::setLineWidth(double) () from /usr/lib64/libQt5Gui.so.5 #9 0x00007ffff5a790ab in WebCore::setupLayout(QTextLayout*, WebCore::TextRun const&) () from /usr/lib64/libQt5WebKit.so.5 [...] It crashes in harfbuzz. Enabling USE=harfbuzz for qtgui made the crash go away (qupzilla runs and get's used since more than a day now).
Still reproducible with 5.3.1?
(In reply to Davide Pesavento from comment #1) > Still reproducible with 5.3.1? problem seems to be gone with 5.3.1.
ok closing