Ceph

i saw a hang during umount due to the FILE_BUFFER pin on a bunch fo disconnected indoes. at first this looked like the fh leak fixed in wip-traceless earlier, but that was already applied. didn't come up during last run, but should hammer this job a few times to make sure it isn't still a problem.

kernel:
  branch: testing
  kdb: true
nuke-on-error: true
machine_type: mira
overrides:
  ceph:
    conf:
      mds:
        mds inject traceless reply probability: 0.5
      client:
        debug client: 20
        debug ms: 20
        debug objectcacher: 20
        debug objecter: 20
      osd:
        osd debug op order: 1
        debug ms: 1
        debug osd: 20
    log-whitelist:
    - slow request
    branch: wip-traceless
roles:
- - mon.a
  - mon.c
  - osd.0
  - osd.1
  - osd.2
- - mon.b
  - mds.a
  - osd.3
  - osd.4
  - osd.5
- - client.0
tasks:
- chef: null
- clock: null
- install: null
- ceph: null
- ceph-fuse: null
- workunit:
    clients:
      all:
      - suites/ffsb.sh