We identified a problem with the version of librbd/librados in v0.56. There will be a v0.56.1 update in a few days that fixes it. In the meantime, be aware that v0.56 ceph-osds may not interact properly with non-v0.56 radosgw or librbd clients, and v0.56 radosgw and librbd clients will not interact properly with non-v0.56 OSDs. If you are using v0.56, we recommend moving to the current testing branch, which includes fixes queued up for v0.56.1. You can get debs from e.g. http://gitbuilder.ceph.com/ceph-deb-precise-x86_64-basic/ref/testing/ or for other many other distros; see http://ceph.com/docs/master/install/debian/#add-development-testing-packages The fix is commit d3abd0fe0bb402ff403259d4b1a718a56331fc39 (921e06decebccc913c0e4f61916d00e62e7e1635 in testing branch). Thanks! sage -- To unsubscribe from this list: send the line "unsubscribe ceph-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html