[Thread 0x7ffb70db66c0 (LWP 715673) exited] *** stack smashing detected ***: terminated Thread 653 "cin" received signal SIGABRT, Aborted. [Switching to Thread 0x7ffb6bfff6c0 (LWP 715674)] __pthread_kill_implementation (threadid=<optimized out>, signo=signo@entry=6, no_tid=no_tid@entry=0) at pthread_kill.c:44 Downloading source file /usr/src/debug/glibc/glibc/nptl/pthread_kill.c 44 return INTERNAL_SYSCALL_ERROR_P (ret) ? INTERNAL_SYSCALL_ERRNO (ret) : 0; (gdb) bt #0 __pthread_kill_implementation (threadid=<optimized out>, signo=signo@entry=6, no_tid=no_tid@entry=0) at pthread_kill.c:44 #1 0x00007ffff5fa7953 in __pthread_kill_internal (signo=6, threadid=<optimized out>) at pthread_kill.c:78 #2 0x00007ffff5f58ea8 in __GI_raise (sig=sig@entry=6) at ../sysdeps/posix/raise.c:26 #3 0x00007ffff5f4253d in __GI_abort () at abort.c:79 #4 0x00007ffff5f4329e in __libc_message ( fmt=fmt@entry=0x7ffff60ba535 "*** %s ***: terminated\n") at ../sysdeps/posix/libc_fatal.c:150 #5 0x00007ffff6037c5b in __GI___fortify_fail ( msg=msg@entry=0x7ffff60ba51d "stack smashing detected") at fortify_fail.c:24 #6 0x00007ffff6037c36 in __stack_chk_fail () at stack_chk_fail.c:24 #7 0x00005555560a42bd in BC_WindowEvents::run (this=<optimized out>) at bcwindowevents.C:138 #8 0x00005555560aca95 in Thread::entrypoint (parameters=0x7fff38554740) at thread.C:70 #9 0x00007ffff5fa5bb5 in start_thread (arg=<optimized out>) at pthread_create.c:444 #10 0x00007ffff6027d90 in clone3 () at ../sysdeps/unix/sysv/linux/x86_64/clone3.S:81 (gdb) -- Stefan