Ceph

In new run http://pulpito.ceph.com/teuthology-2015-08-27_13:22:31-upgrade:firefly-hammer-x:parallel-infernalis-distro-basic-vps/
Jobs: 1034555, 1034556

2015-08-27T14:59:12.274 INFO:tasks.workunit.client.0.vpm039.stdout:test/librados/tier.cc:87: Failure
2015-08-27T14:59:12.274 INFO:tasks.workunit.client.0.vpm039.stdout:Value of: s_cluster.pool_create(cache_pool_name.c_str())
2015-08-27T14:59:12.274 INFO:tasks.workunit.client.0.vpm039.stdout:  Actual: -22
2015-08-27T14:59:12.274 INFO:tasks.workunit.client.0.vpm039.stdout:Expected: 0
2015-08-27T14:59:12.275 INFO:tasks.workunit.client.0.vpm039.stderr:*** Caught signal (Segmentation fault) **
2015-08-27T14:59:12.275 INFO:tasks.workunit.client.0.vpm039.stderr: in thread 7fe59452a840
2015-08-27T14:59:12.279 INFO:tasks.workunit.client.0.vpm039.stderr: ceph version 0.94.3-7-g41a245a (41a245aff77dde8a2ab212f9c91a73a23a77c40d)
2015-08-27T14:59:12.280 INFO:tasks.workunit.client.0.vpm039.stderr: 1: ceph_test_rados_api_tier() [0x577afa]
2015-08-27T14:59:12.280 INFO:tasks.workunit.client.0.vpm039.stderr: 2: (()+0x10340) [0x7fe5918dc340]
2015-08-27T14:59:12.280 INFO:tasks.workunit.client.0.vpm039.stderr: 3: (std::string::assign(std::string const&)+0x9) [0x7fe590afb479]
2015-08-27T14:59:12.281 INFO:tasks.workunit.client.0.vpm039.stderr: 4: (flush_evict_all(librados::Rados&, librados::IoCtx&)+0x20) [0x4db9a0]
2015-08-27T14:59:12.281 INFO:tasks.workunit.client.0.vpm039.stderr: 5: (LibRadosTwoPoolsPP::TearDown()+0x28) [0x546f88]
2015-08-27T14:59:12.281 INFO:tasks.workunit.client.0.vpm039.stderr: 6: (void testing::internal::HandleExceptionsInMethodIfSupported<testing::Test, void>(testing::Test*, void (testing::Test::*)(), char const*)+0x33) [0x572443]
2015-08-27T14:59:12.281 INFO:tasks.workunit.client.0.vpm039.stderr: 7: (testing::Test::Run()+0x80) [0x564810]
2015-08-27T14:59:12.282 INFO:tasks.workunit.client.0.vpm039.stderr: 8: (testing::TestInfo::Run()+0x9e) [0x5648ee]
2015-08-27T14:59:12.282 INFO:tasks.workunit.client.0.vpm039.stderr: 9: (testing::TestCase::Run()+0xa5) [0x5649f5]
2015-08-27T14:59:12.282 INFO:tasks.workunit.client.0.vpm039.stderr: 10: (testing::internal::UnitTestImpl::RunAllTests()+0x248) [0x564ca8]
2015-08-27T14:59:12.282 INFO:tasks.workunit.client.0.vpm039.stderr: 11: (testing::UnitTest::Run()+0x54) [0x564f54]
2015-08-27T14:59:12.282 INFO:tasks.workunit.client.0.vpm039.stderr: 12: (main()+0x73) [0x4d93b3]
2015-08-27T14:59:12.283 INFO:tasks.workunit.client.0.vpm039.stderr: 13: (__libc_start_main()+0xf5) [0x7fe590180ec5]
2015-08-27T14:59:12.283 INFO:tasks.workunit.client.0.vpm039.stderr: 14: ceph_test_rados_api_tier() [0x4db16d]

Per Josh's analysis, we may have to backport to hammer
https://github.com/ceph/ceph/commit/bef09e0cdb274cb1c87335a2af9ee532d14a4596