Version: kdebase-workspace-4.2.1-7.fc10.x86_64 (using KDE 4.2.1) Compiler: gcc 4.3.2 x86_64 (I believe, that's f10 current) OS: Linux Installed from: Fedora RPMs (original report at https://bugzilla.redhat.com/show_bug.cgi?id=484606 RH peeps said to push upstream) Ever since the initial release of 4.2, up through the current 4.2.1, I've experienced intermittent plasma crashes that I did *not* suffer in < 4.2. Unfortunately I haven't been able to come up with a way to reproduce these on demand, but they happen often enough that I've got a pile of 15 kcrash reports saved now. Have experienced on various kernels from at latest 2.6.27.12 up to current 2.6.29-rc8-git2. Happened both on my prior 7950GT and current 8800GT using 180.29 nvidia drivers. Monitor is 2560x1600, compositing fully enabled. selinux and all other default Fedora security paranoia enabled.
Created attachment 32175 [details] latest backtrace
Created attachment 32176 [details] last backtrace I got on 4.2.0 before moving to 4.2.1 Also see the three attached to the original RHBZ report. I can attach my whole collection of these if they're useful.
Note that the reporter says in the Fedora bug that this also happens on Intel graphics hardware, so it doesn't sound like a driver bug.
Backtrace from comment 1: ------ Application: Plasma Workspace (plasma), signal SIGSEGV 0x000000358b4a7f81 in nanosleep () from /lib64/libc.so.6 Current language: auto; currently c [Current thread is 1 (Thread 0x7f944bbd9840 (LWP 5877))] Thread 4 (Thread 0x7f9435fee950 (LWP 5882)): #0 pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:261 #1 0x0000003507a5a839 in QWaitConditionPrivate::wait () at thread/qwaitcondition_unix.cpp:82 #2 QWaitCondition::wait (this=0x1579b80, mutex=0x1579b78, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:154 #3 0x0000003509072eac in QHostInfoAgent::run (this=0x1579b60) at kernel/qhostinfo.cpp:241 #4 0x0000003507a59852 in QThreadPrivate::start (arg=0x1579b60) at thread/qthread_unix.cpp:185 #5 0x000000358c0073da in start_thread (arg=<value optimized out>) at pthread_create.c:297 #6 0x000000358b4e62bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112 Thread 3 (Thread 0x7f94351da950 (LWP 5883)): #0 0x000000358b4deaa2 in select () from /lib64/libc.so.6 #1 0x0000003507b22626 in QProcessManager::run (this=0x11db260) at io/qprocess_unix.cpp:301 #2 0x0000003507a59852 in QThreadPrivate::start (arg=0x11db260) at thread/qthread_unix.cpp:185 #3 0x000000358c0073da in start_thread (arg=<value optimized out>) at pthread_create.c:297 #4 0x000000358b4e62bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112 Current language: auto; currently asm Thread 2 (Thread 0x7f942f793950 (LWP 5892)): #0 pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:261 #1 0x0000003507a5a839 in QWaitConditionPrivate::wait () at thread/qwaitcondition_unix.cpp:82 #2 QWaitCondition::wait (this=0x131bfc0, mutex=0x131bfb8, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:154 #3 0x00007f9439069fa0 in RenderThread::run (this=0x131bfa8) at /usr/src/debug/kdebase-workspace-4.2.1/plasma/wallpapers/image/renderthread.cpp:91 #4 0x0000003507a59852 in QThreadPrivate::start (arg=0x131bfa8) at thread/qthread_unix.cpp:185 #5 0x000000358c0073da in start_thread (arg=<value optimized out>) at pthread_create.c:297 #6 0x000000358b4e62bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112 Current language: auto; currently c Thread 1 (Thread 0x7f944bbd9840 (LWP 5877)): [KCrash Handler] #5 0x0000003507b57505 in QMetaObject::activate (sender=0x1fbe870, m=<value optimized out>, local_signal_index=0, argv=0x7fff53c2da40) at kernel/qobject.cpp:3097 #6 0x00007f9437d21bdf in TaskManager::AbstractGroupingStrategy::groupRemoved (this=0x7f9437f48a60, _t1=0x157f890) at /usr/src/debug/kdebase-workspace-4.2.1/x86_64-redhat-linux-gnu/libs/taskmanager/abstractgroupingstrategy.moc:87 #7 0x00007f9437d227fe in TaskManager::AbstractGroupingStrategy::closeGroup (this=0x1fbe870, group=0x157f890) at /usr/src/debug/kdebase-workspace-4.2.1/libs/taskmanager/abstractgroupingstrategy.cpp:143 #8 0x00007f9437d28998 in TaskManager::ProgramGroupingStrategy::checkGroup (this=0x1fbe870) at /usr/src/debug/kdebase-workspace-4.2.1/libs/taskmanager/strategies/programgroupingstrategy.cpp:183 #9 0x00007f9437d2910d in TaskManager::ProgramGroupingStrategy::qt_metacall (this=0x1fbe870, _c=QMetaObject::InvokeMetaMethod, _id=0, _a=<value optimized out>) at /usr/src/debug/kdebase-workspace-4.2.1/x86_64-redhat-linux-gnu/libs/taskmanager/programgroupingstrategy.moc:67 #10 0x0000003507b56764 in QMetaObject::activate (sender=0x157f890, from_signal_index=<value optimized out>, to_signal_index=22, argv=0x4) at kernel/qobject.cpp:3031 #11 0x00007f9437d37bf2 in TaskManager::TaskGroup::itemRemoved (this=0x7f9437f48a60, _t1=0x1dff850) at /usr/src/debug/kdebase-workspace-4.2.1/x86_64-redhat-linux-gnu/libs/taskmanager/taskgroup.moc:141 #12 0x00007f9437d25038 in TaskManager::GroupManager::remove (this=0x1653c20, task=) at /usr/src/debug/kdebase-workspace-4.2.1/libs/taskmanager/groupmanager.cpp:283 #13 0x00007f9437d264db in TaskManager::GroupManager::qt_metacall (this=0x1653c20, _c=<value optimized out>, _id=<value optimized out>, _a=0x7fff53c2ddc0) at /usr/src/debug/kdebase-workspace-4.2.1/x86_64-redhat-linux-gnu/libs/taskmanager/groupmanager.moc:92 #14 0x0000003507b56764 in QMetaObject::activate (sender=0x165e760, from_signal_index=<value optimized out>, to_signal_index=5, argv=0x4) at kernel/qobject.cpp:3031 #15 0x00007f9437d3abc5 in TaskManager::TaskManager::taskRemoved (this=0x7f9437f48a60, _t1=<value optimized out>) at /usr/src/debug/kdebase-workspace-4.2.1/x86_64-redhat-linux-gnu/libs/taskmanager/taskmanager.moc:157 #16 0x00007f9437d3c0ae in TaskManager::TaskManager::windowRemoved (this=0x165e760, w=79708887) at /usr/src/debug/kdebase-workspace-4.2.1/libs/taskmanager/taskmanager.cpp:263 #17 0x00007f9437d3ddaf in TaskManager::TaskManager::qt_metacall (this=0x165e760, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fff53c2dfe0) at /usr/src/debug/kdebase-workspace-4.2.1/x86_64-redhat-linux-gnu/libs/taskmanager/taskmanager.moc:107 #18 0x0000003507b56764 in QMetaObject::activate (sender=0x130cd20, from_signal_index=<value optimized out>, to_signal_index=6, argv=0x4) at kernel/qobject.cpp:3031 #19 0x000000350a126f72 in KWindowSystem::windowRemoved (this=0x7f9437f48a60, _t1=79708887) at /usr/src/debug/kdelibs-4.2.1/x86_64-redhat-linux-gnu/kdeui/kwindowsystem.moc:125 #20 0x000000350a1294bb in KWindowSystemPrivate::removeClient (this=0x130e600, w=79708887) at /usr/src/debug/kdelibs-4.2.1/kdeui/windowmanagement/kwindowsystem_x11.cpp:249 #21 0x000000350a138350 in NETRootInfo::update (this=0x130e628, dirty_props=<value optimized out>) at /usr/src/debug/kdelibs-4.2.1/kdeui/windowmanagement/netwm.cpp:2125 #22 0x000000350a13868b in NETRootInfo::event (this=0x130e628, event=<value optimized out>, properties=0x7fff53c2e2d0, properties_size=5) at /usr/src/debug/kdelibs-4.2.1/kdeui/windowmanagement/netwm.cpp:2052 #23 0x000000350a12978b in KWindowSystemPrivate::x11Event (this=0x130e600, ev=0x7fff53c2ebf0) at /usr/src/debug/kdelibs-4.2.1/kdeui/windowmanagement/kwindowsystem_x11.cpp:136 #24 0x000000350a004353 in KAppX11HackWidget::publicx11Event () at /usr/src/debug/kdelibs-4.2.1/kdeui/kernel/kapplication.cpp:935 #25 KApplication::x11EventFilter (this=<value optimized out>, _event=0x7fff53c2ebf0) at /usr/src/debug/kdelibs-4.2.1/kdeui/kernel/kapplication.cpp:985 #26 0x0000003cfdc42814 in PlasmaApp::x11EventFilter (this=0x11ce390, event=0x7fff53c2ebf0) at /usr/src/debug/kdebase-workspace-4.2.1/plasma/shells/desktop/plasmaapp.cpp:453 #27 0x00000035081db49f in qt_x11EventFilter (ev=0x7fff53c2ebf0) at kernel/qapplication_x11.cpp:361 #28 0x00000035081ecb56 in QApplication::x11ProcessEvent (this=0x11ce390, event=0x7fff53c2ebf0) at kernel/qapplication_x11.cpp:2922 #29 0x0000003508213ae4 in x11EventSourceDispatch (s=0x11e9350, callback=0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:142 #30 0x00000037e8c3779b in g_main_dispatch () at gmain.c:2144 #31 IA__g_main_context_dispatch (context=0x11e8920) at gmain.c:2697 #32 0x00000037e8c3af6d in g_main_context_iterate (context=0x11e8920, block=1, dispatch=1, self=<value optimized out>) at gmain.c:2778 #33 0x00000037e8c3b12b in IA__g_main_context_iteration (context=0x11e8920, may_block=1) at gmain.c:2841 #34 0x0000003507b6a79f in QEventDispatcherGlib::processEvents (this=0x11de470, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:319 #35 0x000000350821328f in QGuiEventDispatcherGlib::processEvents (this=0x7f9437f48a60, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:198 #36 0x0000003507b40cb2 in QEventLoop::processEvents (this=<value optimized out>, flags=) at kernel/qeventloop.cpp:143 #37 0x0000003507b40e3d in QEventLoop::exec (this=0x7fff53c2ef20, flags=) at kernel/qeventloop.cpp:194 #38 0x0000003507b432ed in QCoreApplication::exec () at kernel/qcoreapplication.cpp:845 #39 0x0000003cfdc3421b in kdemain (argc=1, argv=0x7fff53c2f228) at /usr/src/debug/kdebase-workspace-4.2.1/plasma/shells/desktop/main.cpp:54 #40 0x000000358b41e576 in __libc_start_main (main=0x400830 <main>, argc=1, ubp_av=0x7fff53c2f228, init=0x400860 <__libc_csu_init>, fini=<value optimized out>, rtld_fini=<value optimized out>, stack_end=0x7fff53c2f218) at libc-start.c:220 #41 0x0000000000400769 in _start () Current language: auto; currently asm Current language: auto; currently c Backtrace from comment 2: ------- Application: Plasma Workspace (plasma), signal SIGSEGV 0x000000358b4a7f81 in nanosleep () from /lib64/libc.so.6 Current language: auto; currently c [Current thread is 1 (Thread 0x7f6a9cd8b840 (LWP 4392))] Thread 4 (Thread 0x7f6a89187950 (LWP 4397)): #0 pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:261 #1 0x00000037e985a839 in QWaitConditionPrivate::wait () at thread/qwaitcondition_unix.cpp:82 #2 QWaitCondition::wait (this=0x20bb100, mutex=0x20bb0f8, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:154 #3 0x00000034b3472eac in QHostInfoAgent::run (this=0x20bb0e0) at kernel/qhostinfo.cpp:241 #4 0x00000037e9859852 in QThreadPrivate::start (arg=0x20bb0e0) at thread/qthread_unix.cpp:185 #5 0x000000358c0073da in start_thread (arg=<value optimized out>) at pthread_create.c:297 #6 0x000000358b4e62bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112 Thread 3 (Thread 0x7f6a88162950 (LWP 4398)): #0 0x000000358b4deaa2 in select () from /lib64/libc.so.6 #1 0x00000037e9922626 in QProcessManager::run (this=0x1b9a4c0) at io/qprocess_unix.cpp:301 #2 0x00000037e9859852 in QThreadPrivate::start (arg=0x1b9a4c0) at thread/qthread_unix.cpp:185 #3 0x000000358c0073da in start_thread (arg=<value optimized out>) at pthread_create.c:297 #4 0x000000358b4e62bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112 Current language: auto; currently asm Thread 2 (Thread 0x7f6a868b7950 (LWP 4407)): #0 pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:261 #1 0x00000037e985a839 in QWaitConditionPrivate::wait () at thread/qwaitcondition_unix.cpp:82 #2 QWaitCondition::wait (this=0x1d41dd0, mutex=0x1d41dc8, time=18446744073709551615) at thread/qwaitcondition_unix.cpp:154 #3 0x00007f6a8c344fa0 in RenderThread::run (this=0x1d41db8) at /usr/src/debug/kdebase-workspace-4.2.0/plasma/wallpapers/image/renderthread.cpp:91 #4 0x00000037e9859852 in QThreadPrivate::start (arg=0x1d41db8) at thread/qthread_unix.cpp:185 #5 0x000000358c0073da in start_thread (arg=<value optimized out>) at pthread_create.c:297 #6 0x000000358b4e62bd in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112 Current language: auto; currently c Thread 1 (Thread 0x7f6a9cd8b840 (LWP 4392)): [KCrash Handler] #5 0x00000037e9957505 in QMetaObject::activate (sender=0x7f6a85c147c0, m=<value optimized out>, local_signal_index=0, argv=0x7fffa4dddbe0) at kernel/qobject.cpp:3097 #6 0x00007f6a8b1a1bdf in TaskManager::AbstractGroupingStrategy::groupRemoved (this=0x7f6a8b3c8a60, _t1=0x246e6d0) at /usr/src/debug/kdebase-workspace-4.2.0/x86_64-redhat-linux-gnu/libs/taskmanager/abstractgroupingstrategy.moc:87 #7 0x00007f6a8b1a27fe in TaskManager::AbstractGroupingStrategy::closeGroup (this=0x7f6a85c147c0, group=0x246e6d0) at /usr/src/debug/kdebase-workspace-4.2.0/libs/taskmanager/abstractgroupingstrategy.cpp:143 #8 0x00007f6a8b1a8998 in TaskManager::ProgramGroupingStrategy::checkGroup (this=0x7f6a85c147c0) at /usr/src/debug/kdebase-workspace-4.2.0/libs/taskmanager/strategies/programgroupingstrategy.cpp:183 #9 0x00007f6a8b1a910d in TaskManager::ProgramGroupingStrategy::qt_metacall (this=0x7f6a85c147c0, _c=QMetaObject::InvokeMetaMethod, _id=0, _a=<value optimized out>) at /usr/src/debug/kdebase-workspace-4.2.0/x86_64-redhat-linux-gnu/libs/taskmanager/programgroupingstrategy.moc:67 #10 0x00000037e9956764 in QMetaObject::activate (sender=0x246e6d0, from_signal_index=<value optimized out>, to_signal_index=22, argv=0x4) at kernel/qobject.cpp:3031 #11 0x00007f6a8b1b7bf2 in TaskManager::TaskGroup::itemRemoved (this=0x7f6a8b3c8a60, _t1=0x7f6a85c618f0) at /usr/src/debug/kdebase-workspace-4.2.0/x86_64-redhat-linux-gnu/libs/taskmanager/taskgroup.moc:141 #12 0x00007f6a8b1a5038 in TaskManager::GroupManager::remove (this=0x1fa7c00, task=) at /usr/src/debug/kdebase-workspace-4.2.0/libs/taskmanager/groupmanager.cpp:283 #13 0x00007f6a8b1a64db in TaskManager::GroupManager::qt_metacall (this=0x1fa7c00, _c=<value optimized out>, _id=<value optimized out>, _a=0x7fffa4dddf60) at /usr/src/debug/kdebase-workspace-4.2.0/x86_64-redhat-linux-gnu/libs/taskmanager/groupmanager.moc:92 #14 0x00000037e9956764 in QMetaObject::activate (sender=0x1fa70c0, from_signal_index=<value optimized out>, to_signal_index=5, argv=0x4) at kernel/qobject.cpp:3031 #15 0x00007f6a8b1babc5 in TaskManager::TaskManager::taskRemoved (this=0x7f6a8b3c8a60, _t1=<value optimized out>) at /usr/src/debug/kdebase-workspace-4.2.0/x86_64-redhat-linux-gnu/libs/taskmanager/taskmanager.moc:157 #16 0x00007f6a8b1bc0ae in TaskManager::TaskManager::windowRemoved (this=0x1fa70c0, w=77625379) at /usr/src/debug/kdebase-workspace-4.2.0/libs/taskmanager/taskmanager.cpp:263 #17 0x00007f6a8b1bddaf in TaskManager::TaskManager::qt_metacall (this=0x1fa70c0, _c=QMetaObject::InvokeMetaMethod, _id=<value optimized out>, _a=0x7fffa4dde180) at /usr/src/debug/kdebase-workspace-4.2.0/x86_64-redhat-linux-gnu/libs/taskmanager/taskmanager.moc:107 #18 0x00000037e9956764 in QMetaObject::activate (sender=0x1d0cf80, from_signal_index=<value optimized out>, to_signal_index=6, argv=0x4) at kernel/qobject.cpp:3031 #19 0x0000003f52526e42 in KWindowSystem::windowRemoved (this=0x7f6a8b3c8a60, _t1=77625379) at /usr/src/debug/kdelibs-4.2.0/x86_64-redhat-linux-gnu/kdeui/kwindowsystem.moc:125 #20 0x0000003f5252938b in KWindowSystemPrivate::removeClient (this=0x1c7e180, w=77625379) at /usr/src/debug/kdelibs-4.2.0/kdeui/windowmanagement/kwindowsystem_x11.cpp:249 #21 0x0000003f52538220 in NETRootInfo::update (this=0x1c7e1a8, dirty_props=<value optimized out>) at /usr/src/debug/kdelibs-4.2.0/kdeui/windowmanagement/netwm.cpp:2125 #22 0x0000003f5253855b in NETRootInfo::event (this=0x1c7e1a8, event=<value optimized out>, properties=0x7fffa4dde470, properties_size=5) at /usr/src/debug/kdelibs-4.2.0/kdeui/windowmanagement/netwm.cpp:2052 #23 0x0000003f5252965b in KWindowSystemPrivate::x11Event (this=0x1c7e180, ev=0x7fffa4dded90) at /usr/src/debug/kdelibs-4.2.0/kdeui/windowmanagement/kwindowsystem_x11.cpp:136 #24 0x0000003f52404203 in KAppX11HackWidget::publicx11Event () at /usr/src/debug/kdelibs-4.2.0/kdeui/kernel/kapplication.cpp:935 #25 KApplication::x11EventFilter (this=<value optimized out>, _event=0x7fffa4dded90) at /usr/src/debug/kdelibs-4.2.0/kdeui/kernel/kapplication.cpp:985 #26 0x0000003f53e41d34 in PlasmaApp::x11EventFilter (this=0x1b7cd10, event=0x7fffa4dded90) at /usr/src/debug/kdebase-workspace-4.2.0/plasma/shells/desktop/plasmaapp.cpp:453 #27 0x0000003f517db49f in qt_x11EventFilter (ev=0x7fffa4dded90) at kernel/qapplication_x11.cpp:361 #28 0x0000003f517ecb56 in QApplication::x11ProcessEvent (this=0x1b7cd10, event=0x7fffa4dded90) at kernel/qapplication_x11.cpp:2922 #29 0x0000003f51813ae4 in x11EventSourceDispatch (s=0x1b9a110, callback=0, user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:142 #30 0x00000037e8c3779b in g_main_dispatch () at gmain.c:2144 #31 IA__g_main_context_dispatch (context=0x1b98a90) at gmain.c:2697 #32 0x00000037e8c3af6d in g_main_context_iterate (context=0x1b98a90, block=1, dispatch=1, self=<value optimized out>) at gmain.c:2778 #33 0x00000037e8c3b12b in IA__g_main_context_iteration (context=0x1b98a90, may_block=1) at gmain.c:2841 #34 0x00000037e996a79f in QEventDispatcherGlib::processEvents (this=0x1b96670, flags=<value optimized out>) at kernel/qeventdispatcher_glib.cpp:319 #35 0x0000003f5181328f in QGuiEventDispatcherGlib::processEvents (this=0x7f6a8b3c8a60, flags=<value optimized out>) at kernel/qguieventdispatcher_glib.cpp:198 #36 0x00000037e9940cb2 in QEventLoop::processEvents (this=<value optimized out>, flags=) at kernel/qeventloop.cpp:143 #37 0x00000037e9940e3d in QEventLoop::exec (this=0x7fffa4ddf0c0, flags=) at kernel/qeventloop.cpp:194 #38 0x00000037e99432ed in QCoreApplication::exec () at kernel/qcoreapplication.cpp:845 #39 0x0000003f53e339bb in kdemain (argc=1, argv=0x7fffa4ddf3c8) at /usr/src/debug/kdebase-workspace-4.2.0/plasma/shells/desktop/main.cpp:54 #40 0x000000358b41e576 in __libc_start_main (main=0x400830 <main>, argc=1, ubp_av=0x7fffa4ddf3c8, init=0x400860 <__libc_csu_init>, fini=<value optimized out>, rtld_fini=<value optimized out>, stack_end=0x7fffa4ddf3b8) at libc-start.c:220 #41 0x0000000000400769 in _start () Current language: auto; currently asm Current language: auto; currently c
This is probably related/duplicate of bug 178076, as the backtrace looks similar to one of the posted in that report. Thanks for reporting
Marking as duplicate of bug 188378 *** This bug has been marked as a duplicate of bug 188378 ***