gdb remmina
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Reading symbols from remmina...(no debugging symbols found)...done.
(gdb) r
Starting program: /usr/bin/remmina
[Thread debugging using libthread_db enabled]
Using host libthread_db library "/usr/lib/libthread_db.so.1".
[New Thread 0x7fffdf2d0700 (LWP 7561)]
[New Thread 0x7fffdeacf700 (LWP 7562)]
[New Thread 0x7fffcc591700 (LWP 7563)]
Gtk-Message: GtkDialog mapped without a transient parent. This is discouraged.

Thread 1 "remmina" received signal SIGSEGV, Segmentation fault.
0x00007ffff25e5646 in strlen () from /usr/lib/libc.so.6