Ceph

this seems to happen consistently. not sure why this fails but, say, map-unmap.sh does not

2013-02-15T06:06:56.775 INFO:teuthology.task.workunit:Running workunits matching rbd/map-snapshot-io.sh on client.0...
2013-02-15T06:06:56.775 INFO:teuthology.task.workunit:Running workunit rbd/map-snapshot-io.sh...
2013-02-15T06:06:56.775 DEBUG:teuthology.orchestra.run:Running [10.214.132.33]: 'mkdir -p -- /tmp/cephtest/mnt.0/client.0/tmp && cd -- /tmp/cephtest/mnt.0/client.0/tmp && CEPH_REF=2c42bfc00c819ddd9e81fb46879df4ef6412fe58 PATH="$PATH:/tmp/cephtest/binary/usr/local/bin" LD_LIBRARY_PATH="$LD_LIBRARY_PATH:/tmp/cephtest/binary/usr/local/lib" CEPH_JAVA_PATH="/tmp/cephtest/binary/usr/local/share/java" CEPH_CONF="/tmp/cephtest/ceph.conf" CEPH_SECRET_FILE="/tmp/cephtest/data/client.0.secret" CEPH_ID="0" PYTHONPATH="$PYTHONPATH:/tmp/cephtest/binary/usr/local/lib/python2.7/dist-packages:/tmp/cephtest/binary/usr/local/lib/python2.6/dist-packages" RBD_CREATE_ARGS=--new-format /tmp/cephtest/enable-coredump /tmp/cephtest/binary/usr/local/bin/ceph-coverage /tmp/cephtest/archive/coverage /tmp/cephtest/workunit.client.0/rbd/map-snapshot-io.sh'
2013-02-15T06:06:57.102 INFO:teuthology.task.workunit.client.0.err:rbd: add failed: (13) Permission denied
2013-02-15T06:06:57.123 INFO:teuthology.task.workunit:Stopping rbd/map-snapshot-io.sh on client.0...