(gdb) bt
#0  0x4001e416 in __kernel_vsyscall ()
#1  0x400bfe71 in raise (sig=6) at ../nptl/sysdeps/unix/sysv/linux/raise.c:64
#2  0x400c334e in abort () at abort.c:92
#3  0x080ceeb7 in SegVio () at comm.c:530
#4  <signal handler called>
#5  do_clanadmin (ch=0x9db0208, argument=<value optimized out>) at clans.c:5236
#6  0x0812f85e in interpret (ch=0x9db0208,
    argument=0xbf9ad966 "status mk allied") at interp.c:919
#7  0x080dd660 in game_loop () at comm.c:880
#8  0x080ddd5c in main (argc=4, argv=0xbf9adef4) at comm.c:413