Bug 27046

#0 0xb7a77b17 in raise (sig=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:64
#1 0xb7a792ae in abort () at abort.c:92
#2 0xb7ab2c97 in __libc_message (do_abort=2, fmt=0xb7b71755 "*** %s ***: %s terminated\n") at ../sysdeps/unix/sysv/linux/libc_fatal.c:186
#3 0xb7b31220 in __fortify_fail (msg=0xb7b7173d "stack smashing detected") at fortify_fail.c:32
#4 0xb7b311da in __stack_chk_fail () at stack_chk_fail.c:29
#5 0x0804d37a in DistUpgrade::doFather (this=0x8061a50) at dist_upgrade.cpp:397
#6 0x0804e837 in DistUpgrade::run (this=0x8061a50) at dist_upgrade.cpp:435
#7 0xb7d314d4 in QThreadPrivate::start (arg=0x8061a50) at thread/qthread_unix.cpp:331
#8 0xb7cbf940 in start_thread (arg=0xb74e0b70) at pthread_create.c:297
#9 0xb7b1a8ae in clone () at ../sysdeps/unix/sysv/linux/i386/clone.S:130