Copying partition into another twice and creating a new partition table results in a crash. Reproducible: Always Steps to Reproduce: 1. Copy partition into another 2. Repeat step 1 with the same partitions 3. Create a new partition table Actual Results: Crash Expected Results: New empty partition table is created. Application: KDE Partition Manager (partitionmanager), signal: Segmentation fault Using host libthread_db library "/lib64/libthread_db.so.1". [Current thread is 1 (Thread 0x7f37df679880 (LWP 18120))] Thread 2 (Thread 0x7f37b49f5700 (LWP 18274)): #0 syscall () at ../sysdeps/unix/sysv/linux/x86_64/syscall.S:38 #1 0x00007f37e708ba6a in g_cond_wait_until () from /usr/lib64/libglib-2.0.so.0 #2 0x00007f37e701bbd9 in ?? () from /usr/lib64/libglib-2.0.so.0 #3 0x00007f37e701c1fb in g_async_queue_timeout_pop () from /usr/lib64/libglib-2.0.so.0 #4 0x00007f37e706e2ca in ?? () from /usr/lib64/libglib-2.0.so.0 #5 0x00007f37e706d875 in ?? () from /usr/lib64/libglib-2.0.so.0 #6 0x00007f37e84ea474 in start_thread (arg=0x7f37b49f5700) at pthread_create.c:334 #7 0x00007f37ea82c6cd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:109 Thread 1 (Thread 0x7f37df679880 (LWP 18120)): [KCrash Handler] #6 0x00007f37eee480c5 in Operation::insertPreviewPartition (this=0x27b16e0, device=..., p=...) at /home/andrius/repositories/kde/kpmcore/src/ops/operation.cpp:54 #7 0x00007f37eee514cd in CopyOperation::undo (this=0x27b16e0) at /home/andrius/repositories/kde/kpmcore/src/ops/copyoperation.cpp:117 #8 0x0000000000454c0e in MainWindow::onApplyAllOperations (this=0x21639b0) at /home/andrius/repositories/kde/partitionmanager/src/gui/mainwindow.cpp:722 #9 0x000000000048d680 in MainWindow::qt_static_metacall (_o=0x21639b0, _c=QMetaObject::InvokeMetaMethod, _id=20, _a=0x7ffdffd6bac0) at /home/andrius/repositories/kde/partitionmanager/build/src/moc_mainwindow.cpp:211 #10 0x00007f37eb64fe1a in QMetaObject::activate (sender=0x238dd00, signalOffset=<optimized out>, local_signal_index=<optimized out>, argv=<optimized out>) at kernel/qobject.cpp:3713 #11 0x00007f37ebe05e02 in QAction::triggered(bool) () from /usr/lib64/libQt5Widgets.so.5 #12 0x00007f37ebe08288 in QAction::activate(QAction::ActionEvent) () from /usr/lib64/libQt5Widgets.so.5 #13 0x00007f37ebf0dfa0 in ?? () from /usr/lib64/libQt5Widgets.so.5 #14 0x00007f37ebf0e0d4 in QAbstractButton::mouseReleaseEvent(QMouseEvent*) () from /usr/lib64/libQt5Widgets.so.5 #15 0x00007f37ebfd2b1a in QToolButton::mouseReleaseEvent(QMouseEvent*) () from /usr/lib64/libQt5Widgets.so.5 #16 0x00007f37ebe52a98 in QWidget::event(QEvent*) () from /usr/lib64/libQt5Widgets.so.5 #17 0x00007f37ebfd2bf9 in QToolButton::event(QEvent*) () from /usr/lib64/libQt5Widgets.so.5 #18 0x00007f37ebe0fa3c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib64/libQt5Widgets.so.5 #19 0x00007f37ebe155c9 in QApplication::notify(QObject*, QEvent*) () from /usr/lib64/libQt5Widgets.so.5 #20 0x00007f37eb62803d in QCoreApplication::notifyInternal (this=0x7ffdffd6c8b0, receiver=0x23fa710, event=0x7ffdffd6bfd0) at kernel/qcoreapplication.cpp:965 #21 0x00007f37ebe144c2 in QApplicationPrivate::sendMouseEvent(QWidget*, QMouseEvent*, QWidget*, QWidget*, QWidget**, QPointer<QWidget>&, bool) () from /usr/lib64/libQt5Widgets.so.5 #22 0x00007f37ebe6ceeb in ?? () from /usr/lib64/libQt5Widgets.so.5 #23 0x00007f37ebe6f42b in ?? () from /usr/lib64/libQt5Widgets.so.5 #24 0x00007f37ebe0fa3c in QApplicationPrivate::notify_helper(QObject*, QEvent*) () from /usr/lib64/libQt5Widgets.so.5 #25 0x00007f37ebe14ebe in QApplication::notify(QObject*, QEvent*) () from /usr/lib64/libQt5Widgets.so.5 #26 0x00007f37eb62803d in QCoreApplication::notifyInternal (this=0x7ffdffd6c8b0, receiver=0x240b8c0, event=0x7ffdffd6c3f0) at kernel/qcoreapplication.cpp:965 #27 0x00007f37eb946c17 in QGuiApplicationPrivate::processMouseEvent(QWindowSystemInterfacePrivate::MouseEvent*) () from /usr/lib64/libQt5Gui.so.5 #28 0x00007f37eb948a45 in QGuiApplicationPrivate::processWindowSystemEvent(QWindowSystemInterfacePrivate::WindowSystemEvent*) () from /usr/lib64/libQt5Gui.so.5 #29 0x00007f37eb930bb8 in QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib64/libQt5Gui.so.5 #30 0x00007f37d8f20160 in ?? () from /usr/lib64/libQt5XcbQpa.so.5 #31 0x00007f37e7046f97 in g_main_context_dispatch () from /usr/lib64/libglib-2.0.so.0 #32 0x00007f37e70471f0 in ?? () from /usr/lib64/libglib-2.0.so.0 #33 0x00007f37e704729c in g_main_context_iteration () from /usr/lib64/libglib-2.0.so.0 #34 0x00007f37eb674faf in QEventDispatcherGlib::processEvents (this=0x20f6260, flags=...) at kernel/qeventdispatcher_glib.cpp:418 #35 0x00007f37eb626f2a in QEventLoop::exec (this=this@entry=0x7ffdffd6c780, flags=..., flags@entry=...) at kernel/qeventloop.cpp:204 #36 0x00007f37eb62e0cc in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1229 #37 0x000000000041c1a8 in main (argc=2, argv=0x7ffdffd6c9f8) at /home/andrius/repositories/kde/partitionmanager/src/main.cpp:89
Git commit 4278172f35af11eaf6efd872645ad8015cc79839 by Andrius Štikonas. Committed on 19/05/2016 at 15:40. Pushed by stikonas into branch 'master'. Iterate over operation stack backwards. M +10 -7 src/core/operationstack.cpp http://commits.kde.org/kpmcore/4278172f35af11eaf6efd872645ad8015cc79839