Libreoffice 28 oct 2011 build callgrind backtrace after 2min

PID 28236: /home/arno/sys/libreoffice-git/core/solver/unxlngx6.pro/installation/opt/program/soffice.bin --writer --splash-pipe=6 [requesting 'Status'...]

  Frame: Backtrace for Thread 1
   [ 0]  _int_free (967869 x)
   [ 1]  free_check (983990 x)
   [ 2]  free (449741 x)
   [ 3]  operator delete(void*) (322182 x)
   [ 4]  GtkHookedYieldMutex::ThreadsEnter() (322183 x)
   [ 5]  GdkThreadsEnter (161078 x)
   [ 6]  0x0000000000059cf0 (161078 x)
   [ 7]  g_main_context_prepare (161147 x)
   [ 8]  0x0000000000042ed0 (161130 x)
   [ 9]  g_main_context_iteration (161010 x)
   [10]  GtkData::Yield(bool, bool) (161010 x)
   [11]  GtkInstance::Yield(bool, bool) (161010 x)
   [12]  Application::Yield(bool) (161009 x)
   [13]  Application::Execute() (1 x)
   [14]  desktop::Desktop::Main() (1 x)
   [15]  ImplSVMain() (1 x)
   [16]  SVMain() (1 x)
   [17]  soffice_main (1 x)
   [18]  main (1 x)
   [19]  (below main) (1 x)
   [20]  0x0000000000400650 (1 x)
   [21]  0x0000000000000af0


  Frame: Backtrace for Thread 2
   [ 0]  pthread_cond_timedwait@@GLIBC_2.3.2 (23 x)
   [ 1]  pthread_cond_timedwait@@GLIBC_2.3.2 (16 x)
   [ 2]  rtl_cache_wsupdate_all (1 x)
   [ 3]  start_thread (7 x)
   [ 4]  clone


  Frame: Backtrace for Thread 3
   [ 0]  poll (134 x)
   [ 1]  x11::SelectionManager::dispatchEvent(int) (136 x)
   [ 2]  x11::SelectionManager::run(void*) (1 x)
   [ 3]  call_SelectionManager_run (1 x)
   [ 4]  osl_thread_start_Impl (6 x)
   [ 5]  start_thread (6 x)
   [ 6]  clone (3 x)
   [ 7]  start_thread (7 x)
   [ 8]  clone


  Frame: Backtrace for Thread 4
   [ 0]  poll (161120 x)
   [ 1]  g_poll (161101 x)
   [ 2]  0x0000000000042ed0 (14 x)
   [ 3]  g_main_loop_run (1 x)
   [ 4]  0x00000000000b4c20 (1 x)
   [ 5]  0x000000000006a3a0 (2 x)
   [ 6]  start_thread (7 x)
   [ 7]  clone


  Frame: Backtrace for Thread 5
   [ 0]  poll (4 x)
   [ 1]  ICEConnectionWorker (1 x)
   [ 2]  osl_thread_start_Impl (6 x)
   [ 3]  start_thread (6 x)
   [ 4]  clone (3 x)
   [ 5]  start_thread (6 x)
   [ 6]  clone (3 x)
   [ 7]  start_thread (7 x)
   [ 8]  clone


  Frame: Backtrace for Thread 6
   [ 0]  accept (1 x)
   [ 1]  osl_acceptPipe (1 x)
   [ 2]  desktop::OfficeIPCThread::run() (1 x)
   [ 3]  threadFunc (1 x)
   [ 4]  osl_thread_start_Impl (4 x)
   [ 5]  start_thread (7 x)
   [ 6]  clone


  Frame: Backtrace for Thread 7
   [ 0]  start_thread (6 x)
   [ 1]  clone (3 x)
   [ 2]  start_thread (6 x)
   [ 3]  clone (3 x)
   [ 4]  start_thread (6 x)
   [ 5]  clone (3 x)
   [ 6]  start_thread (7 x)
   [ 7]  clone


  Frame: Backtrace for Thread 8
   [ 0]  start_thread (7 x)
   [ 1]  clone