ceph/PendingReleaseNotes

v0.94
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* librbd and librados include lttng tracepoints on distros with
  liblttng 2.4 or later (only Ubuntu Trusty for the ceph.com
  packages). When running a daemon that uses these libraries, i.e. an
  application that calls fork(2) or clone(2) without exec(3), you must
  set LD_PRELOAD=liblttng-ust-fork.so.0 to prevent a crash in the
  lttng atexit handler when the process exits. The only ceph tool that
  requires this is rbd-fuse.