873      1 ./dm_abba duel /dev/vbd0 90
   875    873 /bin/sh /tmp/guest_duel.sh 90
   876    873 /bin/sh /tmp/guest_duel.sh 90
   886    873 ./dm_abba duel /dev/vbd0 90
   887    873 ./dm_abba duel /dev/vbd0 90
   890    876 timeout -k 3 3 dmsetup ls
   893    890 dmsetup ls
   912    873 timeout 8 dmsetup ls
   913    912 dmsetup ls
===