Quartus Prime v. 21.1.1: Fatal Error: Segment Violation

Hi,

Yes, here "sometimes" means occasionally, from time to time. By the way, recently I got another segfault even when the option "Run Design Assistant during compilation" was disabled in settings. So, the problem can be more complex. Unfortunately, I cannot send you the project files because it is a confidential information. I can send you crash reports. Here is the last crash report:

Problem Details
Error:

*** Fatal Error: Segment Violation at 0xffffffffffffffe8
Module: quartus
Stack Trace:
0x42d5e: TMWQ_TREE::start_next_task(bool) + 0x102 (resr_tmwq)
0x438ea: TMWQ_TREE::on_start_next_task() + 0xe (resr_tmwq)
0x4a3ca: TMWQ_TREE::qt_static_metacall(QObject*, QMetaObject::Call, int, void**) + 0x1ec (resr_tmwq)
0x2fb7a3: void doActivate<false>(QObject*, int, void**) + 0x263 (Qt5Core.so.5)
0x30b80: TMWQ_TREE::start_next_task_signal() + 0x1a (resr_tmwq)
0x42c45: TMWQ_TREE::compile_finished() + 0x11 (resr_tmwq)
0x4a275: TMWQ_TREE::qt_static_metacall(QObject*, QMetaObject::Call, int, void**) + 0x97 (resr_tmwq)
0x2fb7a3: void doActivate<false>(QObject*, int, void**) + 0x263 (Qt5Core.so.5)
0x22cce: TMWQ_WIDGET::post_flow_finish() + 0x1a (resr_tmwq)
0x23359: TMWQ_WIDGET::ntfq_msg_post_notify_flow_finish(unsigned long, bool) + 0x2f (resr_tmwq)
0x2315a: TMWQ_NTFQ::ntfq_msg_post_notify_flow_finish(unsigned long, bool) + 0x14 (resr_tmwq)
0x2902: NTFQ_NOTIFY_TARGET::dispatch_notify_msg(NTFQ_NOTIFY_MAP const*, unsigned int, unsigned long, bool) + 0x56 (ccl_ntfq)
0x2987: NTFQ_NOTIFY_TARGET::on_ntfq_notify(unsigned int, unsigned long, bool) + 0x3d (ccl_ntfq)
0x2e08: NTFQ_NOTIFY_MGR::broadcast_notify(unsigned int, unsigned long) + 0xca (ccl_ntfq)
0x2b7b: ntfq_broadcast_notify(unsigned int, unsigned long) + 0x26 (ccl_ntfq)
0x1a240: flow_reset(FLOW_INFO*) + 0x73 (sys_flow)
0x28b70: flow_execute_custom + 0xf9a (sys_flow)
0x43570: TMWQ_TREE::start_next_task(bool) + 0x914 (resr_tmwq)
0x46992: TMWQ_TREE::start(TMWQ_ITEM*) + 0x17a (resr_tmwq)
0x46c28: TMWQ_TREE::on_start(QModelIndex const&) + 0x272 (resr_tmwq)
0x46f2c: TMWQ_TREE::on_double_click_text(QModelIndex const&) + 0x1f8 (resr_tmwq)
0x4a3ae: TMWQ_TREE::qt_static_metacall(QObject*, QMetaObject::Call, int, void**) + 0x1d0 (resr_tmwq)
0x2fb7a3: void doActivate<false>(QObject*, int, void**) + 0x263 (Qt5Core.so.5)
0x3b1dd5: QAbstractItemView::doubleClicked(QModelIndex const&) + 0x35 (Qt5Widgets.so.5)
0x428f66: QTreeView::mouseDoubleClickEvent(QMouseEvent*) + 0x1d6 (Qt5Widgets.so.5)
0x189e72: AFCQ_TREE_VIEW::mouseDoubleClickEvent(QMouseEvent*) + 0x24 (gcl_afcq)
0x19b647: QWidget::event(QEvent*) + 0xa87 (Qt5Widgets.so.5)
0x2456ce: QFrame::event(QEvent*) + 0x1e (Qt5Widgets.so.5)
0x3beb43: QAbstractItemView::viewportEvent(QEvent*) + 0x1b3 (Qt5Widgets.so.5)
0x42accc: QTreeView::viewportEvent(QEvent*) + 0x3c (Qt5Widgets.so.5)
0x18a14d: AFCQ_TREE_VIEW::viewportEvent(QEvent*) + 0x2cb (gcl_afcq)
0x2c0530: QCoreApplicationPrivate::sendThroughObjectEventFilters(QObject*, QEvent*) + 0xa0 (Qt5Core.so.5)
0x15bed2: QApplicationPrivate::notify_helper(QObject*, QEvent*) + 0x72 (Qt5Widgets.so.5)
0x163a30: QApplication::notify(QObject*, QEvent*) + 0xcf0 (Qt5Widgets.so.5)
0x2c07b0: QCoreApplication::notifyInternal2(QObject*, QEvent*) + 0x110 (Qt5Core.so.5)
0x1624e2: QApplicationPrivate::sendMouseEvent(QWidget*, QMouseEvent*, QWidget*, QWidget*, QWidget**, QPointer<QWidget>&, bool, bool) + 0x212 (Qt5Widgets.so.5)
0x1b4e8e: QWidgetWindow::handleMouseEvent(QMouseEvent*) + 0x6fe (Qt5Widgets.so.5)
0x1b7e23: QWidgetWindow::event(QEvent*) + 0x2d3 (Qt5Widgets.so.5)
0x15befc: QApplicationPrivate::notify_helper(QObject*, QEvent*) + 0x9c (Qt5Widgets.so.5)
0x162f60: QApplication::notify(QObject*, QEvent*) + 0x220 (Qt5Widgets.so.5)
0x2c07b0: QCoreApplication::notifyInternal2(QObject*, QEvent*) + 0x110 (Qt5Core.so.5)
0x1484ad: QGuiApplicationPrivate::processMouseEvent(QWindowSystemInterfacePrivate::MouseEvent*) + 0xbbd (Qt5Gui.so.5)
0x1494b5: QGuiApplicationPrivate::processWindowSystemEvent(QWindowSystemInterfacePrivate::WindowSystemEvent*) + 0x135 (Qt5Gui.so.5)
0x1238eb: QWindowSystemInterface::sendWindowSystemEvents(QFlags<QEventLoop::ProcessEventsFlag>) + 0xbb (Qt5Gui.so.5)
0x651b3: QXcbUnixEventDispatcher::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) + 0x23 (Qt5XcbQpa.so.5)
0x2bf01a: QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) + 0x11a (Qt5Core.so.5)
0x2c87d7: QCoreApplication::exec() + 0x97 (Qt5Core.so.5)
0x1f2b: qgq_main(int, char const**) + 0x7b (quartus)
0x3ee30: msg_main_thread(void*) + 0x10 (ccl_msg)
0x5acc: thr_final_wrapper + 0xc (ccl_thr)
0x3eeef: msg_thread_wrapper(void* (*)(void*), void*) + 0x62 (ccl_msg)
0x9f9c: mem_thread_wrapper(void* (*)(void*), void*) + 0x5c (ccl_mem)
0x91d9: err_thread_wrapper(void* (*)(void*), void*) + 0x27 (ccl_err)
0x5b0f: thr_thread_wrapper + 0x15 (ccl_thr)
0x40ea1: msg_exe_main(int, char const**, int (*)(int, char const**)) + 0xb2 (ccl_msg)
0x2011: main + 0x26 (quartus)
0x23d0a: __libc_start_main + 0xea (c.so.6)

End-trace

Executable: quartus
Comment:
None

System Information
Platform: linux64
OS name: Debian GNU/Linux
OS version: 11

Quartus Prime Information
Address bits: 64
Version: 21.1.1
Build: 850
Edition: Lite Edition