Version: (using Devel) Compiler: KDE 4.2 RC1 Ubuntu packages OS: Linux Installed from: Compiled sources Steps to reproduce: In Ubuntu 8.10 with the 4.2 RC1 packages installed, when you click on the taskbar calendar the calendar will pop up. Move the calendar window: the first time the window will not change its position. Try to move it a second time and the taskbar will crash. I can reproduce it every time. Also I was able to reproduce it in the beta 2. Thanks for KDE 4.2, Juan
If you can reproduce the crash at will, may you read http://techbase.kde.org/Development/Tutorials/Debugging/How_to_create_useful_crash_reports and post a complete backtrace here? Thanks :)
Yes, it can be reproduced at will. This time with KDE 4.2 (I upgraded to Ubuntu 4.2 packages that were released for 8.10). The crash handler points to Plasma Workspace. I have installed the debug Ubuntu packages for qt and kdelibs5. Although I have not found the debug package of plasma. Here is the backtrace: This backtrace appears to be of no use. This is probably because your packages are built in a way which prevents creation of proper backtraces, or the stack frame was seriously corrupted in the crash. (no debugging symbols found) (no debugging symbols found) (no debugging symbols found) [Thread debugging using libthread_db enabled] [New Thread 0xb54866c0 (LWP 15801)] [New Thread 0xa9563b90 (LWP 15805)] [New Thread 0xa9da0b90 (LWP 15804)] 0xb8057430 in __kernel_vsyscall () [Current thread is 0 (LWP 15801)] Thread 3 (Thread 0xa9da0b90 (LWP 15804)): #0 0xb8057430 in __kernel_vsyscall () #1 0xb590d075 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/tls/i686/cmov/libpthread.so.0 #2 0xb64d6bbd in pthread_cond_wait () from /lib/tls/i686/cmov/libc.so.6 #3 0xb66c06f2 in QWaitCondition::wait () from /usr/lib/libQtCore.so.4 #4 0xb7a19532 in ?? () from /usr/lib/libQtNetwork.so.4 #5 0xb66bf6ae in ?? () from /usr/lib/libQtCore.so.4 #6 0xb590950f in start_thread () from /lib/tls/i686/cmov/libpthread.so.0 #7 0xb64c8a0e in clone () from /lib/tls/i686/cmov/libc.so.6 Thread 2 (Thread 0xa9563b90 (LWP 15805)): #0 0xb8057430 in __kernel_vsyscall () #1 0xb590d075 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/tls/i686/cmov/libpthread.so.0 #2 0xb64d6bbd in pthread_cond_wait () from /lib/tls/i686/cmov/libc.so.6 #3 0xb66c06f2 in QWaitCondition::wait () from /usr/lib/libQtCore.so.4 #4 0xa9f80c8a in ?? () from /usr/lib/kde4/plasma_wallpaper_image.so #5 0xb66bf6ae in ?? () from /usr/lib/libQtCore.so.4 #6 0xb590950f in start_thread () from /lib/tls/i686/cmov/libpthread.so.0 #7 0xb64c8a0e in clone () from /lib/tls/i686/cmov/libc.so.6 Thread 1 (Thread 0xb54866c0 (LWP 15801)): #0 0xb8057430 in __kernel_vsyscall () #1 0xb6483f36 in nanosleep () from /lib/tls/i686/cmov/libc.so.6 #2 0xb6483d4e in sleep () from /lib/tls/i686/cmov/libc.so.6 #3 0xb7813d72 in KCrash::startDrKonqi (argv=0xbfc55564, argc=17) at /build/buildd/kde4libs-4.2.0/kdeui/util/kcrash.cpp:412 #4 0xb7814734 in KCrash::defaultCrashHandler (sig=11) at /build/buildd/kde4libs-4.2.0/kdeui/util/kcrash.cpp:337 #5 <signal handler called> #6 0xb6fe2a86 in ?? () from /usr/lib/libQtGui.so.4 #7 0xb6fe3337 in ?? () from /usr/lib/libQtGui.so.4 #8 0xb6fe3495 in QGraphicsScene::mouseReleaseEvent () from /usr/lib/libQtGui.so.4 #9 0xb6fe3787 in QGraphicsScene::event () from /usr/lib/libQtGui.so.4 #10 0xb6a3f8ec in QApplicationPrivate::notify_helper () from /usr/lib/libQtGui.so.4 #11 0xb6a4772e in QApplication::notify () from /usr/lib/libQtGui.so.4 #12 0xb77a3fed in KApplication::notify (this=0x9059328, receiver=0x9079e90, event=0xbfc55f44) at /build/buildd/kde4libs-4.2.0/kdeui/kernel/kapplication.cpp:307 #13 0xb67afe61 in QCoreApplication::notifyInternal () from /usr/lib/libQtCore.so.4 #14 0xb6ff7c22 in QGraphicsView::mouseReleaseEvent () from /usr/lib/libQtGui.so.4 #15 0xb6a97962 in QWidget::event () from /usr/lib/libQtGui.so.4 #16 0xb6dcefd3 in QFrame::event () from /usr/lib/libQtGui.so.4 #17 0xb6e657df in QAbstractScrollArea::viewportEvent () from /usr/lib/libQtGui.so.4 #18 0xb6ff2d0f in QGraphicsView::viewportEvent () from /usr/lib/libQtGui.so.4 #19 0xb6e67d85 in ?? () from /usr/lib/libQtGui.so.4 #20 0xb67af04a in QCoreApplicationPrivate::sendThroughObjectEventFilters () from /usr/lib/libQtCore.so.4 #21 0xb6a3f8ca in QApplicationPrivate::notify_helper () from /usr/lib/libQtGui.so.4 #22 0xb6a480e1 in QApplication::notify () from /usr/lib/libQtGui.so.4 #23 0xb77a3fed in KApplication::notify (this=0x9059328, receiver=0x92b78e0, event=0xbfc56558) at /build/buildd/kde4libs-4.2.0/kdeui/kernel/kapplication.cpp:307 #24 0xb67afe61 in QCoreApplication::notifyInternal () from /usr/lib/libQtCore.so.4 #25 0xb6a4736e in QApplicationPrivate::sendMouseEvent () from /usr/lib/libQtGui.so.4 #26 0xb6ab1656 in ?? () from /usr/lib/libQtGui.so.4 #27 0xb6ab09e5 in QApplication::x11ProcessEvent () from /usr/lib/libQtGui.so.4 #28 0xb6ada7aa in ?? () from /usr/lib/libQtGui.so.4 #29 0xb574e6f8 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0 #30 0xb5751da3 in ?? () from /usr/lib/libglib-2.0.so.0 #31 0xb5751f61 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0 #32 0xb67da478 in QEventDispatcherGlib::processEvents () from /usr/lib/libQtCore.so.4 #33 0xb6ad9ea5 in ?? () from /usr/lib/libQtGui.so.4 #34 0xb67ae52a in QEventLoop::processEvents () from /usr/lib/libQtCore.so.4 #35 0xb67ae6ea in QEventLoop::exec () from /usr/lib/libQtCore.so.4 #36 0xb67b0da5 in QCoreApplication::exec () from /usr/lib/libQtCore.so.4 #37 0xb6a3f767 in QApplication::exec () from /usr/lib/libQtGui.so.4 #38 0xb7fe7456 in kdemain () from /usr/lib/libkdeinit4_plasma.so #39 0x08048712 in _start () #0 0xb8057430 in __kernel_vsyscall ()
The debug symbols for plasma should be in "kdebase-workspace-dbg", however they aren't required. We need the debug symbols for "libQtGui.so.4": #6 0xb6fe2a86 in ?? () from /usr/lib/libQtGui.so.4 #7 0xb6fe3337 in ?? () from /usr/lib/libQtGui.so.4 #8 0xb6fe3495 in QGraphicsScene::mouseReleaseEvent () from /usr/lib/libQtGui.so.4 #9 0xb6fe3787 in QGraphicsScene::event () from /usr/lib/libQtGui.so.4 they should be included in "libqt4-dbg". I'm not sure why there aren't present Thanks
The package libqt4-dbg was installed, but now I have installed kdebase-workspace-dbg, and that has as dependency a kdebase-runtime-dbg and now it seems to be a bit more symbols. Here you have the backtrace: This backtrace appears to be of no use. This is probably because your packages are built in a way which prevents creation of proper backtraces, or the stack frame was seriously corrupted in the crash. [Thread debugging using libthread_db enabled] [New Thread 0xb54866c0 (LWP 6312)] [New Thread 0xa9563b90 (LWP 6316)] [New Thread 0xa9da0b90 (LWP 6313)] 0xb8057430 in __kernel_vsyscall () [Current thread is 0 (LWP 6312)] Thread 3 (Thread 0xa9da0b90 (LWP 6313)): #0 0xb8057430 in __kernel_vsyscall () #1 0xb590d075 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/tls/i686/cmov/libpthread.so.0 #2 0xb64d6bbd in pthread_cond_wait () from /lib/tls/i686/cmov/libc.so.6 #3 0xb66c06f2 in QWaitCondition::wait () from /usr/lib/libQtCore.so.4 #4 0xb7a19532 in ?? () from /usr/lib/libQtNetwork.so.4 #5 0xb66bf6ae in ?? () from /usr/lib/libQtCore.so.4 #6 0xb590950f in start_thread () from /lib/tls/i686/cmov/libpthread.so.0 #7 0xb64c8a0e in clone () from /lib/tls/i686/cmov/libc.so.6 Thread 2 (Thread 0xa9563b90 (LWP 6316)): #0 0xb8057430 in __kernel_vsyscall () #1 0xb590d075 in pthread_cond_wait@@GLIBC_2.3.2 () from /lib/tls/i686/cmov/libpthread.so.0 #2 0xb64d6bbd in pthread_cond_wait () from /lib/tls/i686/cmov/libc.so.6 #3 0xb66c06f2 in QWaitCondition::wait () from /usr/lib/libQtCore.so.4 #4 0xa9f80c8a in RenderThread::run (this=0xa0ef50c) at /build/buildd/kdebase-workspace-4.2.0/plasma/wallpapers/image/renderthread.cpp:91 #5 0xb66bf6ae in ?? () from /usr/lib/libQtCore.so.4 #6 0xb590950f in start_thread () from /lib/tls/i686/cmov/libpthread.so.0 #7 0xb64c8a0e in clone () from /lib/tls/i686/cmov/libc.so.6 Thread 1 (Thread 0xb54866c0 (LWP 6312)): #0 0xb8057430 in __kernel_vsyscall () #1 0xb6483f36 in nanosleep () from /lib/tls/i686/cmov/libc.so.6 #2 0xb6483d4e in sleep () from /lib/tls/i686/cmov/libc.so.6 #3 0xb7813d72 in KCrash::startDrKonqi (argv=0xbf855164, argc=17) at /build/buildd/kde4libs-4.2.0/kdeui/util/kcrash.cpp:412 #4 0xb7814734 in KCrash::defaultCrashHandler (sig=11) at /build/buildd/kde4libs-4.2.0/kdeui/util/kcrash.cpp:337 #5 <signal handler called> #6 0xb6fe2a86 in ?? () from /usr/lib/libQtGui.so.4 #7 0xb6fe3337 in ?? () from /usr/lib/libQtGui.so.4 #8 0xb6fe3495 in QGraphicsScene::mouseReleaseEvent () from /usr/lib/libQtGui.so.4 #9 0xb6fe3787 in QGraphicsScene::event () from /usr/lib/libQtGui.so.4 #10 0xb6a3f8ec in QApplicationPrivate::notify_helper () from /usr/lib/libQtGui.so.4 #11 0xb6a4772e in QApplication::notify () from /usr/lib/libQtGui.so.4 #12 0xb77a3fed in KApplication::notify (this=0x9dff328, receiver=0x9e20770, event=0xbf855b44) at /build/buildd/kde4libs-4.2.0/kdeui/kernel/kapplication.cpp:307 #13 0xb67afe61 in QCoreApplication::notifyInternal () from /usr/lib/libQtCore.so.4 #14 0xb6ff7c22 in QGraphicsView::mouseReleaseEvent () from /usr/lib/libQtGui.so.4 #15 0xb6a97962 in QWidget::event () from /usr/lib/libQtGui.so.4 #16 0xb6dcefd3 in QFrame::event () from /usr/lib/libQtGui.so.4 #17 0xb6e657df in QAbstractScrollArea::viewportEvent () from /usr/lib/libQtGui.so.4 #18 0xb6ff2d0f in QGraphicsView::viewportEvent () from /usr/lib/libQtGui.so.4 #19 0xb6e67d85 in ?? () from /usr/lib/libQtGui.so.4 #20 0xb67af04a in QCoreApplicationPrivate::sendThroughObjectEventFilters () from /usr/lib/libQtCore.so.4 #21 0xb6a3f8ca in QApplicationPrivate::notify_helper () from /usr/lib/libQtGui.so.4 #22 0xb6a480e1 in QApplication::notify () from /usr/lib/libQtGui.so.4 #23 0xb77a3fed in KApplication::notify (this=0x9dff328, receiver=0xa4652c0, event=0xbf856158) at /build/buildd/kde4libs-4.2.0/kdeui/kernel/kapplication.cpp:307 #24 0xb67afe61 in QCoreApplication::notifyInternal () from /usr/lib/libQtCore.so.4 #25 0xb6a4736e in QApplicationPrivate::sendMouseEvent () from /usr/lib/libQtGui.so.4 #26 0xb6ab1656 in ?? () from /usr/lib/libQtGui.so.4 #27 0xb6ab09e5 in QApplication::x11ProcessEvent () from /usr/lib/libQtGui.so.4 #28 0xb6ada7aa in ?? () from /usr/lib/libQtGui.so.4 #29 0xb574e6f8 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0 #30 0xb5751da3 in ?? () from /usr/lib/libglib-2.0.so.0 #31 0xb5751f61 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0 #32 0xb67da478 in QEventDispatcherGlib::processEvents () from /usr/lib/libQtCore.so.4 #33 0xb6ad9ea5 in ?? () from /usr/lib/libQtGui.so.4 #34 0xb67ae52a in QEventLoop::processEvents () from /usr/lib/libQtCore.so.4 #35 0xb67ae6ea in QEventLoop::exec () from /usr/lib/libQtCore.so.4 #36 0xb67b0da5 in QCoreApplication::exec () from /usr/lib/libQtCore.so.4 #37 0xb6a3f767 in QApplication::exec () from /usr/lib/libQtGui.so.4 #38 0xb7fe7456 in kdemain (argc=1, argv=0xbf856b54) at /build/buildd/kdebase-workspace-4.2.0/plasma/shells/desktop/main.cpp:54 #39 0x08048712 in main (argc=7012447, argv=0x650064) at /build/buildd/kdebase-workspace-4.2.0/obj-i486-linux-gnu/plasma/shells/desktop/plasma_qgv_dummy.cpp:3 #0 0xb8057430 in __kernel_vsyscall () Thanks
*** This bug has been marked as a duplicate of bug 178601 ***