[tptacek]

With the extra write:

    c5bcc3bc73b5ef45e91d2d7c70b64f196fac08eee4e4acf6e6571ebe

With the extra write and an extra byte on the big write (to try to trigger the loop condition):

    ec66be1ebccf055f839fccf2d12e641dcbbda4f5c71a3bdee6509495