.
Thread 2 (process 13077):
#0  _Unwind_IteratePhdrCallback (info=0x7fff08d86f50, 
    size=<value optimized out>, ptr=<value optimized out>)
    at ../../../src/libgcc/../gcc/unwind-dw2-fde-glibc.c:238
	data = (struct unw_eh_callback_data *) 0x7fff08d86fd0
	phdr = (const Elf64_Phdr *) 0x7f90001f8040
	p_eh_frame_hdr = (const Elf64_Phdr *) 0x0
	p_dynamic = (const Elf64_Phdr *) 0x0
	n = 5
	match = 0
	load_base = 140256454082560
	p = <value optimized out>
	eh_frame = <value optimized out>
	ob = {pc_begin = 0x7f8ffacaef04, tbase = 0x0, dbase = 0x7f9000b924b0, 
  u = {single = 0x38, array = 0x38, sort = 0x38}, s = {b = {sorted = 0, 
      from_array = 0, mixed_encoding = 0, encoding = 64, count = 4697}, 
    i = 140256461638144}, next = 0x0}
	prev_cache_entry = (struct frame_hdr_cache_element *) 0x0
	last_cache_entry = (struct frame_hdr_cache_element *) 0x0
	pc_low = 0
	pc_high = 0
	adds = 73
	subs = 0
#1  0x00007f90006e0bd0 in dl_iterate_phdr () from /lib/libc.so.6
#2  0x00007f8ffacbfe99 in _Unwind_Find_FDE (pc=0x7f8ffacbdda7, 
    bases=0x7fff08d874a8)
    at ../../../src/libgcc/../gcc/unwind-dw2-fde-glibc.c:420
	data = {pc = 140256364715431, tbase = 0x0, dbase = 0x0, func = 0x0, 
  ret = 0x0, check_cache = 0}
	ret = (const fde *) 0x0
#3  0x00007f8ffacbd2c3 in uw_frame_state_for (context=0x7fff08d87400, 
    fs=<value optimized out>) at ../../../src/libgcc/../gcc/unwind-dw2.c:1129
	fde = <value optimized out>
	cie = <value optimized out>
	aug = <value optimized out>
	insn = <value optimized out>
#4  0x00007f8ffacbdc19 in uw_init_context_1 (context=0x7fff08d87400, 
    outer_cfa=0x7fff08d87530, outer_ra=0x0)
    at ../../../src/libgcc/../gcc/unwind-dw2.c:1435
	fs = {regs = {reg = {{loc = {reg = 0, offset = 0, exp = 0x0}, 
        how = REG_UNSAVED} <repeats 18 times>}, prev = 0x0, cfa_offset = 0, 
    cfa_reg = 0, cfa_exp = 0x0, cfa_how = CFA_UNSET}, pc = 0x0, 
  personality = 0, data_align = 0, code_align = 0, retaddr_column = 0, 
  fde_encoding = 0 '\0', lsda_encoding = 0 '\0', saw_z = 0 '\0', 
  signal_frame = 0 '\0', eh_ptr = 0x0}
	sp_slot = {ptr = 0, word = 0}
	code = <value optimized out>
	once_regsizes = 0
#5  0x00007f8ffacbdda8 in _Unwind_Backtrace (
    trace=0x7f90006baac0 <backtrace_helper>, trace_argument=0x7fff08d87530)
    at ../../../src/libgcc/../gcc/unwind.inc:288
	context = {reg = {0x0 <repeats 18 times>}, cfa = 0x0, 
  ra = 0x7f8ffacbdda8, lsda = 0x0, bases = {tbase = 0x0, dbase = 0x0, 
    func = 0x0}, flags = 4611686018427387904, version = 0, args_size = 0, 
  by_value = '\0' <repeats 17 times>}
	code = <value optimized out>
#6  0x00007f90006babe2 in backtrace () from /lib/libc.so.6
#7  0x00007f8ffef79bf8 in kRealBacktrace () from /usr/lib/libkdecore.so.5
#8  0x00007f8fff4d3a36 in KIconLoader::~KIconLoader ()
   from /usr/lib/libkdeui.so.5
#9  0x00007f90005f566d in exit () from /lib/libc.so.6
#10 0x00007f9000947f15 in ?? () from /usr/lib/libkdeinit4_ksmserver.so
#11 0x00007f8ffded18b4 in _XIOError () from /usr/lib/libX11.so.6
#12 0x00007f8ffded9358 in ?? () from /usr/lib/libX11.so.6
#13 0x00007f8ffded9ab6 in _XEventsQueued () from /usr/lib/libX11.so.6
#14 0x00007f8ffdec20a3 in XEventsQueued () from /usr/lib/libX11.so.6
#15 0x00007f8ffd597c5c in ?? () from /usr/lib/libQtGui.so.4
#16 0x00007f8ff8e40aaa in g_main_context_check ()
   from /usr/lib/libglib-2.0.so.0
#17 0x00007f8ff8e41401 in ?? () from /usr/lib/libglib-2.0.so.0
#18 0x00007f8ff8e416db in g_main_context_iteration ()
   from /usr/lib/libglib-2.0.so.0
#19 0x00007f8ffe73815f in QEventDispatcherGlib::processEvents ()
   from /usr/lib/libQtCore.so.4
#20 0x00007f8ffd597a9f in ?? () from /usr/lib/libQtGui.so.4
#21 0x00007f8ffe70e682 in QEventLoop::processEvents ()
   from /usr/lib/libQtCore.so.4
#22 0x00007f8ffe70e80d in QEventLoop::exec () from /usr/lib/libQtCore.so.4
#23 0x00007f8ffe710cbd in QCoreApplication::exec ()
   from /usr/lib/libQtCore.so.4
#24 0x00007f9000943c09 in kdemain () from /usr/lib/libkdeinit4_ksmserver.so
#25 0x00007f90005dd466 in __libc_start_main () from /lib/libc.so.6
#26 0x0000000000400669 in _start ()
.
Thread 1 (process 13079):
#0  0x00007f8ffe661dfe in ?? () from /usr/lib/libQtCore.so.4
#1  0x00007f8ffe65fd0b in ?? () from /usr/lib/libQtCore.so.4
#2  0x00007f8ffe660765 in QRegExp::operator= () from /usr/lib/libQtCore.so.4
#3  0x00007f8ffe66095f in QRegExp::QRegExp () from /usr/lib/libQtCore.so.4
#4  0x00007f8ffe66c063 in QString::replace () from /usr/lib/libQtCore.so.4
#5  0x00007f9000947350 in ?? () from /usr/lib/libkdeinit4_ksmserver.so
#6  0x00007f9000947e95 in ?? () from /usr/lib/libkdeinit4_ksmserver.so
#7  <signal handler called>
#8  0x00007f9000947e70 in ?? () from /usr/lib/libkdeinit4_ksmserver.so
#9  <signal handler called>
#10 0x00007f900069e482 in select () from /lib/libc.so.6
#11 0x00007f8ffe6f0006 in ?? () from /usr/lib/libQtCore.so.4
#12 0x00007f8ffe627362 in ?? () from /usr/lib/libQtCore.so.4
#13 0x00007f8ff8bef3ea in start_thread () from /lib/libpthread.so.0
#14 0x00007f90006a5c6d in clone () from /lib/libc.so.6
#15 0x0000000000000000 in ?? ()