.
Thread 2 (Thread 0xb7306b70 (LWP 12735)):
#0  0x00360416 in __kernel_vsyscall ()
No symbol table info available.
#1  0x0079b40e in __GI___poll (fds=0x9e419e8, nfds=2, timeout=-1) at ../sysdeps/unix/sysv/linux/poll.c:87
        resultvar = <optimized out>
        oldtype = -516
        result = <optimized out>
#2  0x008e842b in g_poll () from /lib/i386-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#3  0x008d9946 in ?? () from /lib/i386-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#4  0x008d9cda in g_main_context_iteration () from /lib/i386-linux-gnu/libglib-2.0.so.0
No symbol table info available.
#5  0x004f5ada in QEventDispatcherGlib::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/i386-linux-gnu/libQtCore.so.4
No symbol table info available.
#6  0x004c61dd in QEventLoop::processEvents(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/i386-linux-gnu/libQtCore.so.4
No symbol table info available.
#7  0x004c6421 in QEventLoop::exec(QFlags<QEventLoop::ProcessEventsFlag>) () from /usr/lib/i386-linux-gnu/libQtCore.so.4
No symbol table info available.
#8  0x003c990b in QThread::exec() () from /usr/lib/i386-linux-gnu/libQtCore.so.4
No symbol table info available.
#9  0x004a6e2d in ?? () from /usr/lib/i386-linux-gnu/libQtCore.so.4
No symbol table info available.
#10 0x003cc7b3 in ?? () from /usr/lib/i386-linux-gnu/libQtCore.so.4
No symbol table info available.
#11 0x001aed31 in start_thread (arg=0xb7306b70) at pthread_create.c:304
        __res = <optimized out>
        pd = 0xb7306b70
        now = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {1834996, 0, 4001536, -1221565368, 789298356, 2048360410}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x0, 0x0}, data = {prev = 0x0, cleanup = 0x0, canceltype = 0}}}
        not_first_call = <optimized out>
        robust = <optimized out>
        pagesize_m1 = <optimized out>
        sp = <optimized out>
        freesize = <optimized out>
        __PRETTY_FUNCTION__ = "start_thread"
#12 0x007aa0ce in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130
No locals.
Backtrace stopped: Not enough registers or memory available to unwind further
.
Thread 1 (Thread 0xb77a2710 (LWP 12734)):
#0  0x00452fbc in QFile::fileName() const () from /usr/lib/i386-linux-gnu/libQtCore.so.4
No symbol table info available.
#1  0x006cdbd5 in QLightDM::UsersModel::getUsers() () from /usr/lib/liblightdm-qt-1.so.0
No symbol table info available.
#2  0x006cee4d in QLightDM::UsersModel::loadUsers() () from /usr/lib/liblightdm-qt-1.so.0
No symbol table info available.
#3  0x006cf78e in QLightDM::UsersModel::UsersModel(QObject*) () from /usr/lib/liblightdm-qt-1.so.0
No symbol table info available.
#4  0x006cf83e in QLightDM::users() () from /usr/lib/liblightdm-qt-1.so.0
No symbol table info available.
#5  0x0804bbc8 in ?? ()
No symbol table info available.
#6  0x0804b83d in ?? ()
No symbol table info available.
#7  0x0804b5ca in ?? ()
No symbol table info available.
#8  0x006f1113 in __libc_start_main (main=0x804b590, argc=1, ubp_av=0xbfd43d74, init=0x804e7b0, fini=0x804e820, rtld_fini=0xc13bc0, stack_end=0xbfd43d6c) at libc-start.c:226
        result = <optimized out>
        unwind_buf = {cancel_jmp_buf = {{jmp_buf = {8716276, 0, 0, 0, -407585627, -1846748710}, mask_was_saved = 0}}, priv = {pad = {0x0, 0x0, 0x1, 0x804b620}, data = {prev = 0x0, cleanup = 0x0, canceltype = 1}}}
        not_first_call = <optimized out>
#9  0x0804b641 in ?? ()
No symbol table info available.
Backtrace stopped: Not enough registers or memory available to unwind further