Thread 2 (Thread 0xb4e2bb90 (LWP 18814)):
#0  0xb7f75410 in __kernel_vsyscall ()
#1  0xb5833dd2 in pthread_cond_timedwait@@GLIBC_2.3.2 () from /lib/tls/i686/cmov/libpthread.so.0
#2  0xb58b2464 in QWaitCondition::wait (this=0x8631d84, mutex=0x8631d80, time=30000) at thread/qwaitcondition_unix.cpp:85
#3  0xb58a6e93 in QThreadPoolThread::run (this=0x861f420) at concurrent/qthreadpool.cpp:140
#4  0xb58b1f2e in QThreadPrivate::start (arg=0x861f420) at thread/qthread_unix.cpp:248
#5  0xb582f4fb in start_thread () from /lib/tls/i686/cmov/libpthread.so.0
#6  0xb568de5e in clone () from /lib/tls/i686/cmov/libc.so.6

Thread 1 (Thread 0xb52ad6c0 (LWP 18808)):
#0  0xb7f75410 in __kernel_vsyscall ()
#1  0xb55e2085 in raise () from /lib/tls/i686/cmov/libc.so.6
#2  0xb55e3a01 in abort () from /lib/tls/i686/cmov/libc.so.6
#3  0xb561ab7c in ?? () from /lib/tls/i686/cmov/libc.so.6
#4  0xb5622c82 in ?? () from /lib/tls/i686/cmov/libc.so.6
#5  0xb56264f0 in free () from /lib/tls/i686/cmov/libc.so.6
#6  0xb58abbdd in qFree (ptr=0x8a805c0) at global/qmalloc.cpp:60
#7  0xb5906d30 in QString::free (d=0x400) at tools/qstring.cpp:1108
#8  0x0806c1e9 in ~QString (this=0x8502134) at /usr/local/Trolltech/Qt-4.6.2/include/QtCore/qstring.h:869
#9  0x0818cb9b in ~TmsServer (this=0x850212c) at ./Preferences/TmsServersList.h:21
#10 0x0818da7f in QMap<QString, TmsServer>::freeData (this=0x84e60a4, x=0x84e0730)
    at /usr/local/Trolltech/Qt-4.6.2/include/QtCore/qmap.h:626
---Type <return> to continue, or q <return> to quit---
#11 0x0818dc80 in ~QMap (this=0x84e60a4) at /usr/local/Trolltech/Qt-4.6.2/include/QtCore/qmap.h:167
#12 0x0818dc93 in ~TmsServersList (this=0x84e60a4) at ./Preferences/TmsServersList.h:42
#13 0x08189d7d in ~MerkaartorPreferences (this=0x84e5f90) at Preferences/MerkaartorPreferences.cpp:123
#14 0x08148bb2 in ~MainWindow (this=0xbfc35714) at MainWindow.cpp:371
#15 0x08134570 in main (argc=Cannot access memory at address 0x4978
) at Main.cpp:228