Version: (using KDE 4.0.0) Installed from: Debian testing/unstable Packages Plasma crashed shortly after startup. At that point some apps were starting, and I tried to delete an icon from the desktop using the "close" button that shows up when you hover over it. It's possible that I also opened its properties page at the same time by accident. Using host libthread_db library "/lib/i686/cmov/libthread_db.so.1". [Thread debugging using libthread_db enabled] [New Thread 0xb62556c0 (LWP 3983)] [New Thread 0xb2cfcb90 (LWP 3985)] [New Thread 0xb3e0cb90 (LWP 3984)] [KCrash handler] #5 QGraphicsItemPrivate::setVisibleHelper (this=0x0, newVisible=false, explicitly=true, update=true) at graphicsview/qgraphicsitem.cpp:1093 #6 0xb73754ac in QGraphicsItem::setVisible (this=0x8184178, visible=<value optimized out>) at graphicsview/qgraphicsitem.cpp:1152 #7 0xb7d30ad4 in Plasma::Phase::timerEvent (this=0x813f9e8, event=0xbfe1ec78) at /usr/include/qt4/QtGui/qgraphicsitem.h:139 #8 0xb7c0ca64 in QObject::event (this=0x813f9e8, e=0xb4965200) at kernel/qobject.cpp:1095 #9 0xb6e8321d in QApplicationPrivate::notify_helper (this=0x8077ec0, receiver=0x813f9e8, e=0xbfe1ec78) at kernel/qapplication.cpp:3556 #10 0xb6e86c77 in QApplication::notify (this=0x805ab68, receiver=0x813f9e8, e=0xbfe1ec78) at kernel/qapplication.cpp:3115 #11 0xb7757cdd in KApplication::notify (this=0x805ab68, receiver=0x813f9e8, event=0xbfe1ec78) at /build/buildd/kde4libs-4.0.0/kdeui/kernel/kapplication.cpp:314 #12 0xb7bfaffb in QCoreApplication::notifyInternal (this=0x805ab68, receiver=0x813f9e8, event=0xbfe1ec78) at kernel/qcoreapplication.cpp:530 #13 0xb7c21f79 in QTimerInfoList::activateTimers (this=0x807acdc) at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:200 #14 0xb7c1eaa0 in timerSourceDispatch (source=0x807aca8) at kernel/qeventdispatcher_glib.cpp:155 #15 0xb675a1c6 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0 #16 0xb675d552 in ?? () from /usr/lib/libglib-2.0.so.0 #17 0x0807a098 in ?? () #18 0x00000000 in ?? () #0 0xb7f34410 in __kernel_vsyscall ()
Oh, and I'm running Debian experimental 4.0.0 packages on i386.
I'm sorry but this really looks like a compilation optimization that makes the code unstable. The suspicious part is this: #6 0xb73754ac in QGraphicsItem::setVisible (this=0x8184178, visible=<value optimized out>) at graphicsview/qgraphicsitem.cpp:1152 Try to update your Qt packages. In case this happens again, please report the bug to Debian. =) Just FYI, here, compiling from source, it doesn't crash.