Application: plasmashell (5.5.5) Qt Version: 5.5.1 Operating System: Linux 4.4.0-47-generic i686 Distribution: Ubuntu 16.04.1 LTS -- Information about the crash: - What I was doing when the application crashed: Trying to log in. The crash is reported 3 times. If I then leave the system, the screen locks and there is a message saying that the unlocker is broken so that I can only unlock it from a terminal login. But if I do that, there is still nothing working when I come back to the session that crashed. Choosing the option on the crash report to restart the program just results in it crashing again. - Unusual behavior I noticed: It happens every time I try it, since I restarted the system after having some updates applied. (I tried to suggest that this might be a duplicate of 372352 but the crash reporting assistant didn't seem to accept that and insists that I haven't selected a duplicate, so I'm mentioning it here instead.) There we a lot of updates and I had the impression that they finished more quickly than usual, so I don't know if that implies they didn't work properly, but there were no error messages in the "Discoverer" program. The crash can be reproduced every time. -- Backtrace: Application: Plasma (plasmashell), signal: Aborted Using host libthread_db library "/lib/i386-linux-gnu/libthread_db.so.1". [Current thread is 1 (Thread 0xafe05800 (LWP 1643))] Thread 7 (Thread 0xa7d23b40 (LWP 1708)): #0 0xb770fc31 in __kernel_vsyscall () #1 0xb4bf1d42 in __lll_lock_wait () at ../sysdeps/unix/sysv/linux/i386/lowlevellock.S:144 #2 0xb4beb949 in __GI___pthread_mutex_lock (mutex=0xb427b2a0) at ../nptl/pthread_mutex_lock.c:115 #3 0xb42348c9 in ?? () from /usr/lib/nvidia-304/libGL.so.1 Backtrace stopped: previous frame inner to this frame (corrupt stack?) Thread 6 (Thread 0xa9471b40 (LWP 1693)): #0 0xb770fc31 in __kernel_vsyscall () #1 0xb4beea9c in pthread_cond_wait@@GLIBC_2.3.2 () at ../sysdeps/unix/sysv/linux/i386/pthread_cond_wait.S:187 #2 0xb4d4d64d in __pthread_cond_wait (cond=0xb767a8d0, mutex=0xb767a8b8) at forward.c:149 #3 0xb7542a2c in ?? () from /usr/lib/i386-linux-gnu/libQt5Script.so.5 #4 0xb7542a6c in ?? () from /usr/lib/i386-linux-gnu/libQt5Script.so.5 #5 0xb423a2c1 in ?? () from /usr/lib/nvidia-304/libGL.so.1 #6 0x5c8b0824 in ?? () #7 0xbab80424 in ?? () #8 0x65000000 in ?? () #9 0x001015ff in ?? () #10 0xd3890000 in ?? () #11 0xfff0013d in ?? () #12 0x7d830fff in ?? () #13 0xc3fffec0 in ?? () #14 0x90669066 in ?? () #15 0x90669066 in ?? () #16 0x90669066 in ?? () #17 0xe8535657 in ?? () #18 0x000f32dd in ?? () #19 0x5938c781 in ?? () #20 0xec810018 in ?? () #21 0x00000094 in ?? () #22 0xa4249c8b in ?? () #23 0x8d000000 in ?? () #24 0x56082474 in ?? () #25 0xe853006a in ?? () #26 0xfffff998 in ?? () #27 0x8510c483 in ?? () #28 0x8d6978c0 in ?? () #29 0x01b8ff4b in ?? () #30 0x89000000 in ?? () #31 0x8be0d3ca in ?? () #32 0x00a4248c in ?? () #33 0xeac10000 in ?? () #34 0x75c98505 in ?? () #35 0x81d0f737 in ?? () #36 0x0088248c in ?? () #37 0x00000000 in ?? () Thread 5 (Thread 0xaa5c0b40 (LWP 1687)): #0 0xb770fc31 in __kernel_vsyscall () #1 0xb4d36d0f in poll () at ../sysdeps/unix/syscall-template.S:84 #2 0xb43e4b10 in g_poll () from /lib/i386-linux-gnu/libglib-2.0.so.0 #3 0xb43d610c in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0 #4 0xb43d6244 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0 #5 0xb5243964 in QEventDispatcherGlib::processEvents (this=0xadb52de8, flags=...) at kernel/qeventdispatcher_glib.cpp:420 #6 0xb51e87a3 in QEventLoop::processEvents (this=0xaa5c0124, flags=...) at kernel/qeventloop.cpp:128 #7 0xb51e8bfa in QEventLoop::exec (this=0xaa5c0124, flags=...) at kernel/qeventloop.cpp:204 #8 0xb500ef1d in QThread::exec (this=0x8a85b58) at thread/qthread.cpp:503 #9 0xb6880aff in QQmlThreadPrivate::run (this=0x8a85b58) at qml/ftw/qqmlthread.cpp:141 #10 0xb501443b in QThreadPrivate::start (arg=0x8a85b58) at thread/qthread_unix.cpp:331 #11 0xb423a2c1 in ?? () from /usr/lib/nvidia-304/libGL.so.1 #12 0x5c8b0824 in ?? () #13 0xbab80424 in ?? () #14 0x65000000 in ?? () #15 0x001015ff in ?? () #16 0xd3890000 in ?? () #17 0xfff0013d in ?? () #18 0x7d830fff in ?? () #19 0xc3fffec0 in ?? () #20 0x90669066 in ?? () #21 0x90669066 in ?? () #22 0x90669066 in ?? () #23 0xe8535657 in ?? () #24 0x000f32dd in ?? () #25 0x5938c781 in ?? () #26 0xec810018 in ?? () #27 0x00000094 in ?? () #28 0xa4249c8b in ?? () #29 0x8d000000 in ?? () #30 0x56082474 in ?? () #31 0xe853006a in ?? () #32 0xfffff998 in ?? () #33 0x8510c483 in ?? () #34 0x8d6978c0 in ?? () #35 0x01b8ff4b in ?? () #36 0x89000000 in ?? () #37 0x8be0d3ca in ?? () #38 0x00a4248c in ?? () #39 0xeac10000 in ?? () #40 0x75c98505 in ?? () #41 0x81d0f737 in ?? () #42 0x0088248c in ?? () #43 0x00000000 in ?? () Thread 4 (Thread 0xab87fb40 (LWP 1680)): #0 0xb4236cc0 in ?? () from /usr/lib/nvidia-304/libGL.so.1 Backtrace stopped: Cannot access memory at address 0x5 Thread 3 (Thread 0xae419b40 (LWP 1676)): #0 0xb770fc31 in __kernel_vsyscall () #1 0xb4bf1d42 in __lll_lock_wait () at ../sysdeps/unix/sysv/linux/i386/lowlevellock.S:144 #2 0xb4beb949 in __GI___pthread_mutex_lock (mutex=0xb427b2a0) at ../nptl/pthread_mutex_lock.c:115 #3 0xb42348c9 in ?? () from /usr/lib/nvidia-304/libGL.so.1 Thread 2 (Thread 0xaf991b40 (LWP 1645)): #0 0xb770fc31 in __kernel_vsyscall () #1 0xb4d36d0f in poll () at ../sysdeps/unix/syscall-template.S:84 #2 0xb70ae41d in ?? () from /usr/lib/i386-linux-gnu/libxcb.so.1 #3 0xb70b059b in xcb_wait_for_event () from /usr/lib/i386-linux-gnu/libxcb.so.1 #4 0xafb09273 in QXcbEventReader::run (this=0x87cc710) at qxcbconnection.cpp:1253 #5 0xb501443b in QThreadPrivate::start (arg=0x87cc710) at thread/qthread_unix.cpp:331 #6 0xb423a2c1 in ?? () from /usr/lib/nvidia-304/libGL.so.1 #7 0x5c8b0824 in ?? () #8 0xbab80424 in ?? () #9 0x65000000 in ?? () #10 0x001015ff in ?? () #11 0xd3890000 in ?? () #12 0xfff0013d in ?? () #13 0x7d830fff in ?? () #14 0xc3fffec0 in ?? () #15 0x90669066 in ?? () #16 0x90669066 in ?? () #17 0x90669066 in ?? () #18 0xe8535657 in ?? () #19 0x000f32dd in ?? () #20 0x5938c781 in ?? () #21 0xec810018 in ?? () #22 0x00000094 in ?? () #23 0xa4249c8b in ?? () #24 0x8d000000 in ?? () #25 0x56082474 in ?? () #26 0xe853006a in ?? () #27 0xfffff998 in ?? () #28 0x8510c483 in ?? () #29 0x8d6978c0 in ?? () #30 0x01b8ff4b in ?? () #31 0x89000000 in ?? () #32 0x8be0d3ca in ?? () #33 0x00a4248c in ?? () #34 0xeac10000 in ?? () #35 0x75c98505 in ?? () #36 0x81d0f737 in ?? () #37 0x0088248c in ?? () #38 0x00000000 in ?? () Thread 1 (Thread 0xafe05800 (LWP 1643)): [KCrash Handler] #7 0xb770fc31 in __kernel_vsyscall () #8 0xb4c85ea9 in __GI_raise (sig=6) at ../sysdeps/unix/sysv/linux/raise.c:54 #9 0xb4c87407 in __GI_abort () at abort.c:89 #10 0xb5000893 in qt_message_fatal (context=..., message=<synthetic pointer>) at global/qlogging.cpp:1578 #11 QMessageLogger::fatal (this=0xbf9e4238, msg=0xb6e6d4c5 "%s") at global/qlogging.cpp:781 #12 0xb6cd2959 in QSGRenderLoop::handleContextCreationFailure (this=0x88c9a88, window=0x8b5ab10, isEs=false) at scenegraph/qsgrenderloop.cpp:244 #13 0xb6cdc016 in QSGThreadedRenderLoop::handleExposure (this=0x88c9a88, window=0x8b5ab10) at scenegraph/qsgthreadedrenderloop.cpp:919 #14 0xb6cdc43d in QSGThreadedRenderLoop::exposureChanged (this=0x88c9a88, window=0x8b5ab10) at scenegraph/qsgthreadedrenderloop.cpp:857 #15 0xb6d0311e in QQuickWindow::exposeEvent (this=0x8b5ab10) at items/qquickwindow.cpp:207 #16 0xb5523857 in QWindow::event (this=0x8b5ab10, ev=0xbf9e46b0) at kernel/qwindow.cpp:2060 #17 0xb6d12698 in QQuickWindow::event (this=0x8b5ab10, e=0xbf9e46b0) at items/qquickwindow.cpp:1413 #18 0x0807e93b in DesktopView::event (this=0x8b5ab10, e=0xbf9e46b0) at /build/plasma-workspace-VahMbv/plasma-workspace-5.5.5.2/shell/desktopview.cpp:205 #19 0xb5b7915a in QApplicationPrivate::notify_helper (this=0x87af5f8, receiver=0x8b5ab10, e=0xbf9e46b0) at kernel/qapplication.cpp:3716 #20 0xb5b7e81c in QApplication::notify (this=0xbf9e4a58, receiver=0x8b5ab10, e=0xbf9e46b0) at kernel/qapplication.cpp:3499 #21 0xb51eb66f in QCoreApplication::notifyInternal (this=0xbf9e4a58, receiver=0x8b5ab10, event=0xbf9e46b0) at kernel/qcoreapplication.cpp:965 #22 0xb551a80e in QCoreApplication::sendSpontaneousEvent (event=0xbf9e46b0, receiver=0x8b5ab10) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:227 #23 QGuiApplicationPrivate::processExposeEvent (e=0x8b25828) at kernel/qguiapplication.cpp:2663 #24 0xb551b789 in QGuiApplicationPrivate::processWindowSystemEvent (e=0x8b25828) at kernel/qguiapplication.cpp:1658 #25 0xb54fcfd7 in QWindowSystemInterface::sendWindowSystemEvents (flags=...) at kernel/qwindowsysteminterface.cpp:625 #26 0xafb3e8ae in userEventSourceDispatch (source=0x87f10c0) at eventdispatchers/qeventdispatcher_glib.cpp:70 #27 0xb43d5ed9 in g_main_context_dispatch () from /lib/i386-linux-gnu/libglib-2.0.so.0 #28 0xb43d6179 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0 #29 0xb43d6244 in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0 #30 0xb5243943 in QEventDispatcherGlib::processEvents (this=0x87eb208, flags=...) at kernel/qeventdispatcher_glib.cpp:418 #31 0xafb3ea81 in QPAEventDispatcherGlib::processEvents (this=0x87eb208, flags=...) at eventdispatchers/qeventdispatcher_glib.cpp:115 #32 0xb51e87a3 in QEventLoop::processEvents (this=0xbf9e4978, flags=...) at kernel/qeventloop.cpp:128 #33 0xb51e8bfa in QEventLoop::exec (this=0xbf9e4978, flags=...) at kernel/qeventloop.cpp:204 #34 0xb51f11d5 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1229 #35 0xb5510931 in QGuiApplication::exec () at kernel/qguiapplication.cpp:1542 #36 0xb5b75024 in QApplication::exec () at kernel/qapplication.cpp:2976 #37 0x08071eee in main (argc=2, argv=0xbf9e4b54) at /build/plasma-workspace-VahMbv/plasma-workspace-5.5.5.2/shell/main.cpp:181 Possible duplicates by query: bug 372352, bug 368209, bug 368112, bug 366358, bug 364721. Reported using DrKonqi
*** This bug has been marked as a duplicate of bug 372229 ***
It's related to upgrade from nvidia-304=304.131-0ubuntu3 to nvidia-304=304.132-0ubuntu0.16.04.2 (or, maybe, other versions in your case). You can (temporarily) downgrade your ndivia package as workaround. Also, please support this Ubuntu bug-report: https://bugs.launchpad.net/ubuntu/+source/plasma-workspace/+bug/1640451 -- to make it confirmed.
*** Bug 373144 has been marked as a duplicate of this bug. ***
*** Bug 373370 has been marked as a duplicate of this bug. ***
*** Bug 373392 has been marked as a duplicate of this bug. ***