298370 2012-04-18 18:29:11 +0000 Kwin crashes when a KDE session is started over NX 2012-10-26 09:34:15 +0000 1 1 4 Plasma kwin general unspecified Ubuntu Linux RESOLVED DUPLICATE 293209 NOR crash --- 0 iordan kwin-bugs-null chantal 0 oldest_to_newest 1247371 0 iordan 2012-04-18 18:29:11 +0000 Application: kwin (4.8.2 (4.8.2)) KDE Platform Version: 4.8.2 (4.8.2) Qt Version: 4.8.1 Operating System: Linux 3.2.0-21-generic-pae i686 Distribution: Ubuntu precise (development branch) -- Information about the crash: - What I was doing when the application crashed: Logging into KDE4 through NX causes kwin to constantly crash. Sometimes no activity is necessary (crashes upon login), at other times, dragging windows around causes it to crash. I saw a bug report with a similar title being marked as a duplicate to kwin crashing as a result of running xrandr. However, I can't duplicate the behavior of that bug-report on my system. Kwin does not crash when xrandr is run no matter what arguments I give it. Hence, I believe this may not be a duplicate but a standalone bug report. If not, then my apologies. The crash can be reproduced every time. -- Backtrace: Application: KWin (kwin), signal: Segmentation fault Using host libthread_db library "/lib/i386-linux-gnu/libthread_db.so.1". [Current thread is 1 (Thread 0xb1a7c740 (LWP 19027))] Thread 2 (Thread 0xaecffb40 (LWP 19029)): #0 0xb7734424 in __kernel_vsyscall () #1 0xb2a1d96b in pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/i386/i686/../i486/pthread_cond_wait.S:169 #2 0xb75133dc in __pthread_cond_wait (cond=0xb6726890, mutex=0xb6726878) at forward.c:139 #3 0xb6622029 in ?? () from /usr/lib/i386-linux-gnu/libQtScript.so.4 #4 0xb662206f in ?? () from /usr/lib/i386-linux-gnu/libQtScript.so.4 #5 0xb2a19d4c in start_thread (arg=0xaecffb40) at pthread_create.c:308 #6 0xb7505ace in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130 Thread 1 (Thread 0xb1a7c740 (LWP 19027)): [KCrash Handler] #7 __GI___libc_free (mem=0x1) at malloc.c:2968 #8 0xb679ff9b in XFree (data=0x1) at ../../src/XlibInt.c:1701 #9 0xb674cc76 in XRRUpdateConfiguration (event=0xbfec704c) at ../../src/Xrandr.c:446 #10 0xb763d3b7 in KWin::Workspace::workspaceEvent (this=0x87826a0, e=0xbfec704c) at ../../kwin/events.cpp:460 #11 0xb762d632 in KWin::Application::x11EventFilter (this=0xbfec7298, e=0xbfec704c) at ../../kwin/main.cpp:359 #12 0xb54af534 in qt_x11EventFilter (ev=0xbfec704c) at kernel/qapplication_x11.cpp:441 #13 qt_x11EventFilter (ev=0xbfec704c) at kernel/qapplication_x11.cpp:429 #14 0xb54bf207 in QApplication::x11ProcessEvent (this=0xbfec7298, event=0xbfec704c) at kernel/qapplication_x11.cpp:3444 #15 0xb54eda88 in QEventDispatcherX11::processEvents (this=0x86b4928, flags=...) at kernel/qeventdispatcher_x11.cpp:132 #16 0xb5f4850d in QEventLoop::processEvents (this=0xbfec71d4, flags=...) at kernel/qeventloop.cpp:149 #17 0xb5f487a9 in QEventLoop::exec (this=0xbfec71d4, flags=...) at kernel/qeventloop.cpp:204 #18 0xb5f4deba in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1148 #19 0xb5431a74 in QApplication::exec () at kernel/qapplication.cpp:3820 #20 0xb76305b5 in kdemain (argc=1, argv=0xbfec7544) at ../../kwin/main.cpp:541 #21 0x0804850b in main (argc=1, argv=0xbfec7544) at kwin_dummy.cpp:3 Possible duplicates by query: bug 298304, bug 293648, bug 293209. Reported using DrKonqi 1247381 1 mgraesslin 2012-04-18 18:56:23 +0000 *** This bug has been marked as a duplicate of bug 293209 *** 1309499 2 74806 chantal 2012-10-26 09:34:15 +0000 Created attachment 74806 New crash information added by DrKonqi kwin (4.8.5 (4.8.5)) on KDE Platform 4.8.5 (4.8.5) using Qt 4.8.1 - What I was doing when the application crashed: I logged in with my nx client on a newly isntalled kubuntu 12.04 server -- Backtrace (Reduced): #6 __GI___libc_free (mem=0x1) at malloc.c:2968 #7 0x00007f8de001f819 in XFree (data=<optimized out>) at ../../src/XlibInt.c:1701 #8 0x00007f8ddfbc72ee in XRRUpdateConfiguration (event=0x7fff9e623230) at ../../src/Xrandr.c:446 #9 0x00007f8de2916c60 in KWin::Workspace::workspaceEvent (this=0x22c6ec0, e=0x7fff9e623230) at ../../kwin/events.cpp:460 #10 0x00007f8de29084b8 in KWin::Application::x11EventFilter (this=0x7fff9e623540, e=0x7fff9e623230) at ../../kwin/main.cpp:359 74806 2012-10-26 09:34:15 +0000 2012-10-26 09:34:15 +0000 New crash 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