https://bugs.kde.org/show_bug.cgi?id=416233
Bug ID: 416233 Summary: On AMD Ryzen 9 3900X, Okular segfaults at undo branching points. Product: okular Version: 1.7.3 Platform: Ubuntu Packages OS: Linux Status: REPORTED Severity: crash Priority: NOR Component: general Assignee: okular-de...@kde.org Reporter: tomtom...@gmail.com Target Milestone: --- SUMMARY On AMD Ryzen 9 3900X, Okular segfaults at undo branching points. STEPS TO REPRODUCE 1. Open a pdf file 2. Select an annotation tool e.g. inline note. 3. Make an inline note. 4. Make another inline note. 5. Undo 4. (Ctrl-z) 6. Make another inline note. OBSERVED RESULT Segmentation fault I couldn't build okular on my machine so I don't have the full stack trace. Thread 1 "okular" received signal SIGSEGV, Segmentation fault. 0x0000000000000000 in ?? () (gdb) bt #0 0x0000000000000000 in () #1 0x00007ffff041a8df in () at /usr/lib/x86_64-linux-gnu/qt5/plugins/okularpart.so #2 0x00007ffff0420cd9 in () at /usr/lib/x86_64-linux-gnu/qt5/plugins/okularpart.so #3 0x00007ffff0420da0 in () at /usr/lib/x86_64-linux-gnu/qt5/plugins/okularpart.so #4 0x00007ffff0411d67 in () at /usr/lib/x86_64-linux-gnu/qt5/plugins/okularpart.so #5 0x00007ffff68105c8 in QMetaObject::activate(QObject*, int, int, void**) () at /lib/x86_64-linux-gnu/libQt5Core.so.5 #6 0x00007ffff044196e in () at /usr/lib/x86_64-linux-gnu/qt5/plugins/okularpart.so #7 0x00007ffff0441d06 in () at /usr/lib/x86_64-linux-gnu/qt5/plugins/okularpart.so #8 0x00007ffff0412724 in () at /usr/lib/x86_64-linux-gnu/qt5/plugins/okularpart.so #9 0x00007ffff04129e4 in () at /usr/lib/x86_64-linux-gnu/qt5/plugins/okularpart.so #10 0x00007ffff0437ebc in () at /usr/lib/x86_64-linux-gnu/qt5/plugins/okularpart.so #11 0x00007ffff72d504e in QWidget::event(QEvent*) () at /lib/x86_64-linux-gnu/libQt5Widgets.so.5 #12 0x00007ffff7382782 in QFrame::event(QEvent*) () at /lib/x86_64-linux-gnu/libQt5Widgets.so.5 #13 0x00007ffff043a9e9 in () at /usr/lib/x86_64-linux-gnu/qt5/plugins/okularpart.so #14 0x00007ffff67e47ab in QCoreApplicationPrivate::sendThroughObjectEventFilters(QObject*, QEvent*) () at /lib/x86_64-linux-gnu/libQt5Core.so.5 #15 0x00007ffff7292a75 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /lib/x86_64-linux-gnu/libQt5Widgets.so.5 #16 0x00007ffff729c053 in QApplication::notify(QObject*, QEvent*) () at /lib/x86_64-linux-gnu/libQt5Widgets.so.5 #17 0x00007ffff67e4a9a in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /lib/x86_64-linux-gnu/libQt5Core.so.5 #18 0x00007ffff729b157 in QApplicationPrivate::sendMouseEvent(QWidget*, QMouseEvent*, QWidget*, QWidget*, QWidget**, QPointer<QWidget>&, bool, bool) () at /lib/x86_64-linux-gnu/libQt5Widgets.so.5 #19 0x00007ffff72f114d in () at /lib/x86_64-linux-gnu/libQt5Widgets.so.5 #20 0x00007ffff72f3fdc in () at /lib/x86_64-linux-gnu/libQt5Widgets.so.5 #21 0x00007ffff7292a86 in QApplicationPrivate::notify_helper(QObject*, QEvent*) () at /lib/x86_64-linux-gnu/libQt5Widgets.so.5 #22 0x00007ffff729be00 in QApplication::notify(QObject*, QEvent*) () at /lib/x86_64-linux-gnu/libQt5Widgets.so.5 #23 0x00007ffff67e4a9a in QCoreApplication::notifyInternal2(QObject*, QEvent*) () at /lib/x86_64-linux-gnu/libQt5Core.so.5 #24 0x00007ffff6c68d73 in QGuiApplicationPrivate::processMouseEvent(QWindowSystemInterfacePrivate::MouseEvent*) () at /lib/x86_64-linux-gnu/libQt5Gui.so.5 #25 0x00007ffff6c6a5fb in QGuiApplicationPrivate::processWindowSystemEvent(QWindowSystemInterfacePrivate::WindowSystemEvent*) () at /lib/x86_64-linux-gnu/libQt5Gui.so.5 #26 0x00007ffff6c4426b in QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib/x86_64-linux-gnu/libQt5Gui.so.5 #27 0x00007ffff29c828e in () at /lib/x86_64-linux-gnu/libQt5XcbQpa.so.5 #28 0x00007ffff4fe584d in g_main_context_dispatch () at /lib/x86_64-linux-gnu/libglib-2.0.so.0 #29 0x00007ffff4fe5ad0 in () at /lib/x86_64-linux-gnu/libglib-2.0.so.0 #30 0x00007ffff4fe5b73 in g_main_context_iteration () at /lib/x86_64-linux-gnu/libglib-2.0.so.0 #31 0x00007ffff683c6a5 in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib/x86_64-linux-gnu/libQt5Core.so.5 #32 0x00007ffff67e363b in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () at /lib/x86_64-linux-gnu/libQt5Core.so.5 #33 0x00007ffff67eb3a6 in QCoreApplication::exec() () at /lib/x86_64-linux-gnu/libQt5Core.so.5 #34 0x0000555555562c6a in () #35 0x00007ffff61a51e3 in __libc_start_main (main=0x555555562560, argc=2, argv=0x7fffffffd6d8, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fffffffd6c8) at ../csu/libc-start.c:308 #36 0x00005555555642be in _start () SOFTWARE/OS VERSIONS AMD Ryzen 9 3900X Ubuntu 19.10, https://packages.ubuntu.com/eoan/okular NOTES * I think something wrong happens when the undo history creates a new branch. * I couldn't reproduce this bug on my laptop with Intel i7-8550U and another desktop with AMD Ryzen 5 3400G. -- You are receiving this mail because: You are watching all bug changes.