Application: kstars (3.4.3) Qt Version: 5.15.2 Frameworks Version: 5.75.0 Operating System: Linux 5.9.14-200.fc33.x86_64 x86_64 Windowing system: Wayland Distribution: Fedora 33 (KDE Plasma) -- Information about the crash: - What I was doing when the application crashed: I was using Plasma 5.20.4 on Wayland in Fedora 33. I started kstars 3.4.3 and clicked on Pointing > Find Object. I entered sagittarius in Filter by name then clicked OK. I moved the map around a bit. I clicked on Pointing > Find Object. I selected the Details button. kstars segmentation faulted in DetailDialog::createGeneralTab at /usr/src/debug/kstars-3.4.3-5.fc33.x86_64/kstars/dialogs/detaildialog.cpp:312 This crash happened 2/2 times. The crash can be reproduced every time. -- Backtrace: Application: KStars (kstars), signal: Segmentation fault [KCrash Handler] #4 DetailDialog::createGeneralTab (this=0x563726e7c5e0) at /usr/src/debug/kstars-3.4.3-5.fc33.x86_64/kstars/dialogs/detaildialog.cpp:312 #5 0x00005637216cc1fd in DetailDialog::DetailDialog (this=<optimized out>, o=<optimized out>, ut=..., geo=<optimized out>, parent=<optimized out>, this=<optimized out>, o=<optimized out>, ut=..., geo=<optimized out>, parent=<optimized out>) at /usr/src/debug/kstars-3.4.3-5.fc33.x86_64/kstars/dialogs/detaildialog.cpp:72 #6 0x00005637218384f3 in FindDialog::slotDetails (this=<optimized out>) at /usr/src/debug/kstars-3.4.3-5.fc33.x86_64/kstars/dialogs/finddialog.cpp:504 #7 FindDialog::qt_static_metacall (_o=<optimized out>, _id=<optimized out>, _a=<optimized out>, _c=<optimized out>) at /usr/src/debug/kstars-3.4.3-5.fc33.x86_64/x86_64-redhat-linux-gnu/kstars/KStarsLib_autogen/2NRMJ5X7RK/moc_finddialog.cpp:170 #8 0x00007f0a686a03c0 in doActivate<false> (sender=0x563726c5dae0, signal_index=9, argv=0x7ffd076650d0) at kernel/qobject.cpp:3898 #9 0x00007f0a6928c316 in QAbstractButton::clicked (this=this@entry=0x563726c5dae0, _t1=<optimized out>) at .moc/moc_qabstractbutton.cpp:308 #10 0x00007f0a6928ccde in QAbstractButtonPrivate::emitClicked (this=this@entry=0x563725868a00) at widgets/qabstractbutton.cpp:415 #11 0x00007f0a6928e673 in QAbstractButtonPrivate::click (this=this@entry=0x563725868a00) at widgets/qabstractbutton.cpp:408 #12 0x00007f0a6928e855 in QAbstractButton::mouseReleaseEvent (this=0x563726c5dae0, e=0x7ffd07665690) at widgets/qabstractbutton.cpp:1044 #13 0x00007f0a691ddb1e in QWidget::event (this=0x563726c5dae0, event=0x7ffd07665690) at kernel/qwidget.cpp:9019 #14 0x00007f0a6919cec3 in QApplicationPrivate::notify_helper (this=<optimized out>, receiver=0x563726c5dae0, e=0x7ffd07665690) at kernel/qapplication.cpp:3632 #15 0x00007f0a691a3eeb in QApplication::notify(QObject*, QEvent*) () at kernel/qapplication.cpp:3076 #16 0x00007f0a68670bd8 in QCoreApplication::notifyInternal2 (receiver=0x563726c5dae0, event=0x7ffd07665690) at kernel/qcoreapplication.cpp:1063 #17 0x00007f0a691a2efa in QApplicationPrivate::sendMouseEvent (receiver=0x563726c5dae0, event=0x7ffd07665690, alienWidget=0x563726c5dae0, nativeWidget=0x56372659e2c0, buttonDown=<optimized out>, lastMouseReceiver=..., spontaneous=true, onlyDispatchEnterLeave=false) at kernel/qapplication.cpp:2614 #18 0x00007f0a691f6375 in QWidgetWindow::handleMouseEvent (this=0x563725864ed0, event=0x7ffd07665940) at kernel/qwidgetwindow.cpp:683 #19 0x00007f0a691f96be in QWidgetWindow::event (this=0x563725864ed0, event=0x7ffd07665940) at kernel/qwidgetwindow.cpp:300 #20 0x00007f0a6919cec3 in QApplicationPrivate::notify_helper (this=<optimized out>, receiver=0x563725864ed0, e=0x7ffd07665940) at kernel/qapplication.cpp:3632 #21 0x00007f0a68670bd8 in QCoreApplication::notifyInternal2 (receiver=0x563725864ed0, event=0x7ffd07665940) at kernel/qcoreapplication.cpp:1063 #22 0x00007f0a68b3f143 in QGuiApplicationPrivate::processMouseEvent(QWindowSystemInterfacePrivate::MouseEvent*) () at kernel/qguiapplication.cpp:2275 #23 0x00007f0a68b208cc in QWindowSystemInterface::sendWindowSystemEvents (flags=...) at kernel/qwindowsysteminterface.cpp:1169 #24 0x00007f0a55f7de24 in userEventSourceDispatch(_GSource*, int (*)(void*), void*) () from /lib64/libQt5WaylandClient.so.5 #25 0x00007f0a66b7a7ef in g_main_dispatch (context=0x5637232e9ed0) at ../glib/gmain.c:3325 #26 g_main_context_dispatch (context=0x5637232e9ed0) at ../glib/gmain.c:4043 #27 0x00007f0a66bcc5d8 in g_main_context_iterate.constprop.0 (context=context@entry=0x5637232e9ed0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../glib/gmain.c:4119 #28 0x00007f0a66b77bc3 in g_main_context_iteration (context=0x5637232e9ed0, may_block=1) at ../glib/gmain.c:4184 #29 0x00007f0a686bd6f3 in QEventDispatcherGlib::processEvents (this=0x5637232cda50, flags=...) at kernel/qeventdispatcher_glib.cpp:423 #30 0x00007f0a6866f57b in QEventLoop::exec (this=0x7ffd07665c80, flags=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:69 #31 0x00007f0a6939cf8f in QDialog::exec (this=0x56372659e2c0) at ../../include/QtCore/../../src/corelib/global/qflags.h:121 #32 0x00005637217f4a4f in KStars::slotFind (this=0x5637232db550) at /usr/src/debug/kstars-3.4.3-5.fc33.x86_64/kstars/kstarsactions.cpp:1174 #33 KStars::qt_static_metacall (_o=0x5637232db550, _c=<optimized out>, _id=<optimized out>, _a=0x7ffd07665f10) at /usr/src/debug/kstars-3.4.3-5.fc33.x86_64/x86_64-redhat-linux-gnu/kstars/KStarsLib_autogen/EWIEGA46WW/moc_kstars.cpp:723 #34 0x00007f0a686a03c0 in doActivate<false> (sender=0x5637261e4710, signal_index=4, argv=0x7ffd07665f10) at kernel/qobject.cpp:3898 #35 0x00007f0a69196646 in QAction::triggered (this=this@entry=0x5637261e4710, _t1=<optimized out>) at .moc/moc_qaction.cpp:376 #36 0x00007f0a69198f31 in QAction::activate (this=0x5637261e4710, event=<optimized out>) at kernel/qaction.cpp:1161 #37 0x00007f0a69317e9a in QMenuPrivate::activateCausedStack (this=this@entry=0x563726832e00, causedStack=..., action=action@entry=0x5637261e4710, action_e=action_e@entry=QAction::Trigger, self=self@entry=true) at widgets/qmenu.cpp:1384 #38 0x00007f0a6931f512 in QMenuPrivate::activateAction (this=0x563726832e00, action=0x5637261e4710, action_e=QAction::Trigger, self=<optimized out>) at widgets/qmenu.cpp:1461 #39 0x00007f0a691ddb1e in QWidget::event (this=0x5637268166f0, event=0x7ffd07666580) at kernel/qwidget.cpp:9019 #40 0x00007f0a6919cec3 in QApplicationPrivate::notify_helper (this=<optimized out>, receiver=0x5637268166f0, e=0x7ffd07666580) at kernel/qapplication.cpp:3632 #41 0x00007f0a691a3eeb in QApplication::notify(QObject*, QEvent*) () at kernel/qapplication.cpp:3076 #42 0x00007f0a68670bd8 in QCoreApplication::notifyInternal2 (receiver=0x5637268166f0, event=0x7ffd07666580) at kernel/qcoreapplication.cpp:1063 #43 0x00007f0a691a2efa in QApplicationPrivate::sendMouseEvent (receiver=0x5637268166f0, event=0x7ffd07666580, alienWidget=0x0, nativeWidget=0x5637268166f0, buttonDown=<optimized out>, lastMouseReceiver=..., spontaneous=true, onlyDispatchEnterLeave=false) at kernel/qapplication.cpp:2614 #44 0x00007f0a691f68e3 in QWidgetWindow::handleMouseEvent (this=0x5637264e5200, event=0x7ffd07666830) at kernel/qwidgetwindow.cpp:580 #45 0x00007f0a691f96be in QWidgetWindow::event (this=0x5637264e5200, event=0x7ffd07666830) at kernel/qwidgetwindow.cpp:300 #46 0x00007f0a6919cec3 in QApplicationPrivate::notify_helper (this=<optimized out>, receiver=0x5637264e5200, e=0x7ffd07666830) at kernel/qapplication.cpp:3632 #47 0x00007f0a68670bd8 in QCoreApplication::notifyInternal2 (receiver=0x5637264e5200, event=0x7ffd07666830) at kernel/qcoreapplication.cpp:1063 #48 0x00007f0a68b3f143 in QGuiApplicationPrivate::processMouseEvent(QWindowSystemInterfacePrivate::MouseEvent*) () at kernel/qguiapplication.cpp:2275 #49 0x00007f0a68b208cc in QWindowSystemInterface::sendWindowSystemEvents (flags=...) at kernel/qwindowsysteminterface.cpp:1169 #50 0x00007f0a55f7de24 in userEventSourceDispatch(_GSource*, int (*)(void*), void*) () from /lib64/libQt5WaylandClient.so.5 #51 0x00007f0a66b7a7ef in g_main_dispatch (context=0x5637232e9ed0) at ../glib/gmain.c:3325 #52 g_main_context_dispatch (context=0x5637232e9ed0) at ../glib/gmain.c:4043 #53 0x00007f0a66bcc5d8 in g_main_context_iterate.constprop.0 (context=context@entry=0x5637232e9ed0, block=block@entry=1, dispatch=dispatch@entry=1, self=<optimized out>) at ../glib/gmain.c:4119 #54 0x00007f0a66b77bc3 in g_main_context_iteration (context=0x5637232e9ed0, may_block=1) at ../glib/gmain.c:4184 #55 0x00007f0a686bd6f3 in QEventDispatcherGlib::processEvents (this=0x5637232cda50, flags=...) at kernel/qeventdispatcher_glib.cpp:423 #56 0x00007f0a6866f57b in QEventLoop::exec (this=0x7ffd07666b60, flags=...) at ../../include/QtCore/../../src/corelib/global/qflags.h:69 #57 0x00007f0a686771b4 in QCoreApplication::exec () at ../../include/QtCore/../../src/corelib/global/qflags.h:121 #58 0x00005637215eb05e in main (argc=<optimized out>, argv=<optimized out>) at /usr/src/debug/kstars-3.4.3-5.fc33.x86_64/kstars/main.cpp:346 [Inferior 1 (process 1830) detached] Reported using DrKonqi
Clicking on Pointing > Find Object, entering sagittarius in Filter by name, and selecting the Details button was all that was required for the crash to happen in further tries. When I ran kstars from konsole and under gdb, the following error was shown when the crash occurred. QWaylandShmBuffer: mmap failed (Invalid argument) Running kstars under gdb indicated that the pointer this in frame 0 pointed to an inaccessible address. (gdb) p this $1 = (DetailDialog * const) 0x555558b4ecc0 (gdb) x this 0x555558b4ecc0: 0x561463b8 (gdb) x 0x561463b8 0x561463b8: Cannot access memory at address 0x561463b8 I'm attaching the gdb output with the full trace. The pointer dso = 0x0 in frame 0 in DetailDialog::createGeneralTab in the full trace which might indicate a null pointer dereference happened at detaildialog.cpp:312 if (!dso->longname().isEmpty() && dso->longname() != dso->name()) Crashes with this trace happened with both of kstars-3.4.3-4.fc33 with LTO disabled due to the problem at https://bugzilla.redhat.com/show_bug.cgi?id=1881915 and kstars-3.4.3-5.fc33 with LTO enabled and -fPIC from koji. This problem isn't likely to be related to the LTO problem. The crash happened when I ran kstars on X in Plasma on Wayland with QT_QPA_PLATFORM=xcb kstars & so the problem probably isn't specific to Wayland.
Created attachment 134068 [details] gdb output when run on kstars followed by the crash with the full trace
Maybe this is related (same EINVAL error in mmap()): https://bugs.kde.org/show_bug.cgi?id=429967
Cannot reproduce. Please try with more recent KStars (e.g. 3.5.2)
> Cannot reproduce. Please try with more recent KStars (e.g. 3.5.2) Fedora 34 is still shipping kstars 3.4.3, and even rawhide doesn't have the latest version: https://src.fedoraproject.org/rpms/kstars Did you test on a device with Intel graphics?
Actually rawhide attempted to update to 3.5.2 one month ago: https://src.fedoraproject.org/rpms/kstars/c/7d370caa3efe7a6844517713b53e3e41b0bc11e1?branch=rawhide But something went wrong during the build (and I couldn't find the build.log): https://koji.fedoraproject.org/koji/taskinfo?taskID=63692520
(In reply to Jasem Mutlaq from comment #4) > Cannot reproduce. Please try with more recent KStars (e.g. 3.5.2) KStars 3.4.3 is the most recent available version in Fedora 34 and rawhide as Bernie wrote. I installed the KStars 3.5.3 beta flatpak with the following based on https://community.kde.org/Guidelines_and_HOWTOs/Flatpak flatpak remote-add --if-not-exists flathub https://flathub.org/repo/flathub.flatpakrepo flatpak remote-add --if-not-exists kdeapps --from https://distribute.kde.org/kdeapps.flatpakrepo flatpak install kstars flatpak run org.kde.kstars QWaylandShmBuffer: mmap failed (Invalid argument) was shown many times in Konsole as KStars started. The crash didn't happen when clicking on Pointing > Find Object, entering sagittarius in Filter by name, and selecting the Details button. The problem might've been fixed in 3.5.3 beta or earlier. The system is using Fedora 34 Plasma installation with Plasma 5.21.4, KF 5.80.0, Qt 5.15.2 with an integrated AMD Radeon R5 GPU using the radeonsi mesa 21.0.2 driver
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