Bug 291901

Application: kwin (4.7.97 (4.8 RC2 (4.7.97))
KDE Platform Version: 4.7.97 (4.8 RC2 (4.7.97)
Qt Version: 4.7.4
Operating System: Linux 3.2.0-9-generic x86_64
Distribution: Ubuntu 11.10

-- Information about the crash:
- What I was doing when the application crashed: crash happened when pressing sound up key on thinkpad very fast

-- Backtrace:
Application: KWin (kwin), signal: Segmentation fault
[Current thread is 1 (Thread 0x7f4952c6e7a0 (LWP 3920))]

Thread 3 (Thread 0x7f4945f97700 (LWP 3932)):
#0  0x00000030c1cda913 in select () at ../sysdeps/unix/syscall-template.S:82
#1  0x0000003e36994bc6 in qt_safe_select (nfds=20, fdread=0xf75880, fdwrite=0xf75b18, fdexcept=0xf75db0, orig_timeout=<optimized out>) at kernel/qcore_unix.cpp:82
#2  0x0000003e3699a330 in QEventDispatcherUNIXPrivate::doSelect (this=0xf756c0, flags=..., timeout=0x0) at kernel/qeventdispatcher_unix.cpp:219
#3  0x0000003e3699a833 in QEventDispatcherUNIX::processEvents (this=0xdb72d0, flags=...) at kernel/qeventdispatcher_unix.cpp:918
#4  0x0000003e3696bcf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#5  0x0000003e3696bef7 in QEventLoop::exec (this=0x7f4945f96db0, flags=...) at kernel/qeventloop.cpp:201
#6  0x0000003e3688327f in QThread::exec (this=<optimized out>) at thread/qthread.cpp:498
#7  0x0000003e3694ecbf in QInotifyFileSystemWatcherEngine::run (this=0xf745f0) at io/qfilesystemwatcher_inotify.cpp:248
#8  0x0000003e36885d05 in QThreadPrivate::start (arg=0xf745f0) at thread/qthread_unix.cpp:331
#9  0x00000030c2407efc in start_thread (arg=0x7f4945f97700) at pthread_create.c:304
#10 0x00000030c1ce189d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#11 0x0000000000000000 in ?? ()

Thread 2 (Thread 0x7f4945796700 (LWP 3933)):
#0  pthread_cond_wait@@GLIBC_2.3.2 () at ../nptl/sysdeps/unix/sysv/linux/x86_64/pthread_cond_wait.S:162
#1  0x0000003e41786fe2 in QTWTF::TCMalloc_PageHeap::scavengerThread (this=0x3e41a801e0) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:2359
#2  0x0000003e41787019 in QTWTF::TCMalloc_PageHeap::runScavengerThread (context=<optimized out>) at ../3rdparty/javascriptcore/JavaScriptCore/wtf/FastMalloc.cpp:1464
#3  0x00000030c2407efc in start_thread (arg=0x7f4945796700) at pthread_create.c:304
#4  0x00000030c1ce189d in clone () at ../sysdeps/unix/sysv/linux/x86_64/clone.S:112
#5  0x0000000000000000 in ?? ()

Thread 1 (Thread 0x7f4952c6e7a0 (LWP 3920)):
[KCrash Handler]
#6  begin (this=0x61) at /usr/include/qt4/QtCore/qlist.h:97
#7  contains (t=<synthetic pointer>, this=0x61) at /usr/include/qt4/QtCore/qlist.h:863
#8  contains (c=0x15c47c0, this=0x51) at ../../kwin/clientgroup.h:198
#9  KWin::ClientGroup::add (this=0x51, c=0x15c47c0, before=-1, becomeVisible=true) at ../../kwin/clientgroup.cpp:52
#10 0x00007f4953394e4c in KWin::Client::manage (this=<optimized out>, w=<optimized out>, isMapped=<optimized out>) at ../../kwin/manage.cpp:329
#11 0x00007f4953359f52 in KWin::Workspace::createClient (this=<optimized out>, w=121634948, is_mapped=false) at ../../kwin/workspace.cpp:569
#12 0x00007f4953384da5 in KWin::Workspace::workspaceEvent (this=0x7f49481de5c0, e=0x7fff5c633ed0) at ../../kwin/events.cpp:357
#13 0x00007f4953376c98 in KWin::Application::x11EventFilter (this=0x7fff5c6341e0, e=0x7fff5c633ed0) at ../../kwin/main.cpp:359
#14 0x0000003e37e6baa5 in qt_x11EventFilter (ev=0x7fff5c633ed0) at kernel/qapplication_x11.cpp:440
#15 qt_x11EventFilter (ev=0x7fff5c633ed0) at kernel/qapplication_x11.cpp:428
#16 0x0000003e37e7ad20 in QApplication::x11ProcessEvent (this=0x7fff5c6341e0, event=0x7fff5c633ed0) at kernel/qapplication_x11.cpp:3405
#17 0x0000003e37ea4eba in QEventDispatcherX11::processEvents (this=0x819f40, flags=...) at kernel/qeventdispatcher_x11.cpp:132
#18 0x0000003e3696bcf2 in QEventLoop::processEvents (this=<optimized out>, flags=...) at kernel/qeventloop.cpp:149
#19 0x0000003e3696bef7 in QEventLoop::exec (this=0x7fff5c634120, flags=...) at kernel/qeventloop.cpp:201
#20 0x0000003e36970789 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1064
#21 0x00007f4953379406 in kdemain (argc=<optimized out>, argv=<optimized out>) at ../../kwin/main.cpp:541
#22 0x00000030c1c2130d in __libc_start_main (main=0x400640 <main(int, char**)>, argc=3, ubp_av=0x7fff5c634908, init=<optimized out>, fini=<optimized out>, rtld_fini=<optimized out>, stack_end=0x7fff5c6348f8) at libc-start.c:226
#23 0x0000000000400671 in _start ()

This bug may be a duplicate of or related to bug 229292.

Possible duplicates by query: bug 271483.

Reported using DrKonqi