#0  malloc_consolidate (av=0x7f6ad2f61a00) at malloc.c:4889
  [Error: malloc.c was not found in source tree]
#1  0x00007f6ad2c6e8f1 in _int_malloc (av=0x7f6ad2f61a00, bytes=2032)
#2  0x00007f6ad2c7053f in __libc_calloc (n=<value optimized out>, 
#3  0x00007f6ad375287a in IA__g_malloc0 (n_bytes=2032)
#4  0x00007f6ad37689a3 in IA__g_slice_alloc (mem_size=24)
#5  0x00007f6ad3747dde in IA__g_list_prepend (list=0x0, data=0x7f0)
#6  0x00007f6ad375bbe1 in IA__g_queue_push_head (queue=0x1d8d400, data=0x7f0)
#7  0x00007f6ad3726c0e in IA__g_async_queue_push_unlocked (queue=0x1e1e870, 
#8  0x00007f6ad3726cf9 in IA__g_async_queue_push (queue=0x1e1e870, 
#9  0x00000000004fe42e in Ekiga::GlibRuntime::run_in_main (this=0x1e1f870, 
#10 0x00000000005932a8 in GMVideoOutputManager_x::close_frame_display (
#11 0x00000000005b0c5d in GMVideoOutputManager::Main (this=0x1e34770)
#12 0x00007f6ad6741c85 in PThread::PX_ThreadStart ()
#13 0x00007f6ad62553ba in start_thread () from /lib/libpthread.so.0
#14 0x00007f6ad2cd9fcd in clone ()
#15 0x0000000000000000 in ?? ()