> Well that usually means out of memory. That's strange. Did
> you try cleaning
> the build directory and made sure no stale plugins are still left.
>

I did a git clean -dxf before building

> If the crash still is present with a clean build try
> debugging where the
> std::bad_alloc exception is thrown. That is do a "break
> __cxa_throw" before
> running creator.
>

Thanks for the hint. I attached the bt of this one.

Regards,
Markus
Breakpoint 1, 0xb70d7165 in __cxa_throw () from /usr/lib/libstdc++.so.6
(gdb) bt
#0  0xb70d7165 in __cxa_throw () from /usr/lib/libstdc++.so.6
#1  0xb71b2125 in qBadAlloc () at global/qglobal.cpp:2008
#2  0xb7c79c7c in QVector<QHeaderViewPrivate::SectionSpan>::realloc 
(this=0x9a36b88, asize=-16777216, aalloc=-25165824)
    at ../../include/QtCore/../../src/corelib/tools/qvector.h:393
#3  0xb7c7ad9f in operator>><QHeaderViewPrivate::SectionSpan> (s...@0xbfce7264, 
v...@0x9a36b88)
    at ../../include/QtCore/../../src/corelib/tools/qvector.h:331
#4  0xb7c6e3ee in QHeaderViewPrivate::read (this=0x9a36868, i...@0xbfce7264) at 
itemviews/qheaderview.cpp:3592
#5  0xb7c6e4d9 in QHeaderView::restoreState (this=0x99a64b8, sta...@0xbfce7344) 
at itemviews/qheaderview.cpp:1535
#6  0xb7c0e943 in QFileDialog::restoreState (this=0xbfce7498, 
sta...@0xbfce73d4) at dialogs/qfiledialog.cpp:480
#7  0xb7c102d8 in QFileDialogPrivate::init (this=0x97efad0, 
directo...@0xbfce7484, namefilt...@0xbfce748c, capti...@0xbfce7480)
    at dialogs/qfiledialog.cpp:2141
#8  0xb7c1060c in QFileDialog (this=0xbfce7498, ar...@0xbfce747c) at 
dialogs/qfiledialog.cpp:348
#9  0xb7c11473 in QFileDialog::getOpenFileNames (parent=0x949a2e0, 
capti...@0xbfce7514, d...@0xbfce7518, filt...@0x95146dc, 
    selectedFilter=0x95146e0, options={i = -1076988656}) at 
dialogs/qfiledialog.cpp:1776
#10 0xb657493c in Core::FileManager::getOpenFileNames ()
   from 
/home/DE/user/Dokumente/dev/git/qt-creator/lib/qtcreator/plugins/Nokia/libCore.so
#11 0xb658e916 in Core::EditorManager::getOpenFileNames ()
   from 
/home/DE/user/Dokumente/dev/git/qt-creator/lib/qtcreator/plugins/Nokia/libCore.so
#12 0xb6563944 in Core::Internal::MainWindow::openFile ()
   from 
/home/DE/user/Dokumente/dev/git/qt-creator/lib/qtcreator/plugins/Nokia/libCore.so
#13 0xb661b150 in Core::Internal::MainWindow::qt_metacall ()
   from 
/home/DE/user/Dokumente/dev/git/qt-creator/lib/qtcreator/plugins/Nokia/libCore.so
#14 0xb72c5ea5 in QMetaObject::metacall (object=0x0, 
cl=QMetaObject::InvokeMetaMethod, idx=49, argv=0xbfce773c)
    at kernel/qmetaobject.cpp:237
#15 0xb72d89b3 in QMetaObject::activate (sender=0x94c6690, m=0xb7ffa9d8, 
local_signal_index=1, argv=0xbfce773c)
    at kernel/qobject.cpp:3272
#16 0xb7699b69 in QAction::triggered (this=0x94c6690, _t1=false) at 
.moc/release-shared/moc_qaction.cpp:263
#17 0xb769da45 in QAction::qt_metacall (this=0x94c6690, 
_c=QMetaObject::InvokeMetaMethod, _id=1, _a=0xbfce787c)
    at .moc/release-shared/moc_qaction.cpp:167
#18 0xb72c5ea5 in QMetaObject::metacall (object=0x0, 
cl=QMetaObject::InvokeMetaMethod, idx=5, argv=0xbfce787c)
    at kernel/qmetaobject.cpp:237
#19 0xb72d89b3 in QMetaObject::activate (sender=0x94c73a8, m=0xb7ffa9d8, 
local_signal_index=1, argv=0xbfce787c)
    at kernel/qobject.cpp:3272
#20 0xb7699b69 in QAction::triggered (this=0x94c73a8, _t1=false) at 
.moc/release-shared/moc_qaction.cpp:263
#21 0xb769b4bf in QAction::activate (this=0x94c73a8, event=QAction::Trigger) at 
kernel/qaction.cpp:1256
#22 0xb769d78b in QAction::event (this=0x94c73a8, e=0xbfce7d44) at 
kernel/qaction.cpp:1182
#23 0xb76a0c6c in QApplicationPrivate::notify_helper (this=0x93ee9c8, 
receiver=0x94c73a8, e=0xbfce7d44)
    at kernel/qapplication.cpp:4389
#24 0xb76ab476 in QApplication::notify (this=0xbfce8c14, receiver=0x94c73a8, 
e=0xbfce7d44) at kernel/qapplication.cpp:3791
#25 0xb72c002b in QCoreApplication::notifyInternal (this=0xbfce8c14, 
receiver=0x94c73a8, event=0xbfce7d44)
    at kernel/qcoreapplication.cpp:732
#26 0xb76e3448 in QShortcutMap::dispatchEvent (this=0x93eea74, e=0xbfce81dc)
    at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:215
#27 0xb76e525f in QShortcutMap::tryShortcutEvent (this=0x93eea74, o=0x99861a0, 
e=0xbfce81dc) at kernel/qshortcutmap.cpp:364
#28 0xb76ad60d in QApplication::notify (this=0xbfce8c14, receiver=0x99861a0, 
e=0xbfce81dc) at kernel/qapplication.cpp:3833
#29 0xb72c002b in QCoreApplication::notifyInternal (this=0xbfce8c14, 
receiver=0x99861a0, event=0xbfce81dc)
    at kernel/qcoreapplication.cpp:732
---Type <return> to continue, or q <return> to quit---
#30 0xb76a1ace in qt_sendSpontaneousEvent (receiver=0x99861a0, event=0x80563bc) 
                                                                                
                                                                 
    at ../../include/QtCore/../../src/corelib/kernel/qcoreapplication.h:218     
                                                                                
                                                                 
#31 0xb775c010 in QKeyMapper::sendKeyEvent (keyWidget=0x99861a0, grab=false, 
type=QEvent::KeyPress, code=79, modifiers=                                      
                                                                    
      {i = -1076984684}, te...@0xbfce84b8, autorepeat=<value optimized out>, 
count=<value optimized out>, nativeScanCode=32,                                 
                                                                    
    nativeVirtualKey=111, nativeModifiers=4) at kernel/qkeymapper_x11.cpp:1876  
                                                                                
                                                                 
#32 0xb775e1aa in QKeyMapperPrivate::translateKeyEvent (this=0x94280a0, 
keyWidget=0x99861a0, event=0xbfce888c, grab=8)                                  
                                                                         
    at kernel/qkeymapper_x11.cpp:1846                                           
                                                                                
                                                                 
#33 0xb7733aa9 in QApplication::x11ProcessEvent (this=0xbfce8c14, 
event=0xbfce888c) at kernel/qapplication_x11.cpp:3429                           
                                                                               
#34 0xb776177a in x11EventSourceDispatch (s=0x93f4f90, callback=0, 
user_data=0x0) at kernel/qguieventdispatcher_glib.cpp:146                       
                                                                              
#35 0xb6e152f9 in g_main_context_dispatch () from /usr/lib/libglib-2.0.so.0     
                                                                                
                                                                 
#36 0xb6e1887b in ?? () from /usr/lib/libglib-2.0.so.0                          
                                                                                
                                                                 
#37 0xb6e189f8 in g_main_context_iteration () from /usr/lib/libglib-2.0.so.0    
                                                                                
                                                                 
#38 0xb72ef4c1 in QEventDispatcherGlib::processEvents (this=0x93f20a0, flags={i 
= -1076983224})                                                                 
                                                                 
    at kernel/qeventdispatcher_glib.cpp:412                                     
                                                                                
                                                                 
#39 0xb7761015 in QGuiEventDispatcherGlib::processEvents (this=0x93f20a0, 
flags={i = -1076983176})                                                        
                                                                       
    at kernel/qguieventdispatcher_glib.cpp:204                                  
                                                                                
                                                                 
#40 0xb72beaca in QEventLoop::processEvents (this=0xbfce8af0, flags={i = 
-1076983112}) at kernel/qeventloop.cpp:149                                      
                                                                        
#41 0xb72bef12 in QEventLoop::exec (this=0xbfce8af0, flags={i = -1076983048}) 
at kernel/qeventloop.cpp:201                                                    
                                                                   
#42 0xb72c30e9 in QCoreApplication::exec () at kernel/qcoreapplication.cpp:1009 
                                                                                
                                                                 
#43 0xb76a0d17 in QApplication::exec () at kernel/qapplication.cpp:3665         
                                                                                
                                                                 
#44 0x0805183e in main ()                                                       
                                                                                
                                                                 
(gdb)                    
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