Ceph

it wasn't included in the rados api workunit. now that it is, we notice it crashes. reproducible on master with a vstart cluster:

[==========] Running 1 test from 1 test case.
[----------] Global test environment set-up.
[----------] 1 test from TmapMigratePP
2016-03-15 08:19:44.726034 7f6f845c0b80 -1 WARNING: the following dangerous and experimental features are enabled: *

^[[A[ RUN      ] TmapMigratePP.DataScan
2016-03-15 08:19:44.988043 7f6f845c0b80 -1 WARNING: the following dangerous and experimental features are enabled: *
2016-03-15 08:19:44.988139 7f6f845c0b80 -1 WARNING: the following dangerous and experimental features are enabled: *
2016-03-15 08:19:44.988313 7f6f845c0b80 -1 WARNING: the following dangerous and experimental features are enabled: *
2016-03-15 08:19:44.988641 7f6f845c0b80 -1 asok(0x7f6f8f0af9f0) AdminSocketConfigObs::init: failed: AdminSocket::bind_and_listen: failed to bind the UNIX domain socket to '/home/sage/src/ceph/src/out/client.admin.20311.asok': (17) File exists
Specify a filesystem with --filesystem
test/librados/tmap_migrate.cc:50: Failure
Value of: 0
Expected: r
Which is: -22
osdc/Objecter.cc: In function 'virtual Objecter::~Objecter()' thread 7f6f845c0b80 time 2016-03-15 08:19:46.072563
osdc/Objecter.cc: 4795: FAILED assert(!m_request_state_hook)
 ceph version 10.0.5-2329-g71dc051 (71dc051aa3498ddc76f731248a122e0acf37b550)
 1: (ceph::__ceph_assert_fail(char const*, char const*, int, char const*)+0x82) [0x7f6f840b2b52]
 2: (Objecter::~Objecter()+0x13e0) [0x7f6f83d21110]
 3: (Objecter::~Objecter()+0x9) [0x7f6f83d21309]
 4: (MDSUtility::~MDSUtility()+0x22) [0x7f6f83c6a592]
 5: (TmapMigratePP_DataScan_Test::TestBody()+0xc6b) [0x7f6f83c5462b]
 6: (void testing::internal::HandleSehExceptionsInMethodIfSupported<testing::Test, void>(testing::Test*, void (testing::Test::*)(), char const*)+0x65) [0x7f6f83ca60f6]
 7: (void testing::internal::HandleExceptionsInMethodIfSupported<testing::Test, void>(testing::Test*, void (testing::Test::*)(), char const*)+0x4b) [0x7f6f83ca149c]
 8: (testing::Test::Run()+0xd4) [0x7f6f83c88626]
 9: (testing::TestInfo::Run()+0x104) [0x7f6f83c88e2c]
 10: (testing::TestCase::Run()+0x107) [0x7f6f83c89505]
 11: (testing::internal::UnitTestImpl::RunAllTests()+0x2c3) [0x7f6f83c90053]
 12: (bool testing::internal::HandleSehExceptionsInMethodIfSupported<testing::internal::UnitTestImpl, bool>(testing::internal::UnitTestImpl*, bool (testing::internal::UnitTestImpl::*)(), char const*)+0x65) [0x7f6f83ca7508]
 13: (bool testing::internal::HandleExceptionsInMethodIfSupported<testing::internal::UnitTestImpl, bool>(testing::internal::UnitTestImpl*, bool (testing::internal::UnitTestImpl::*)(), char const*)+0x4b) [0x7f6f83ca226a]
 14: (testing::UnitTest::Run()+0xb7) [0x7f6f83c8ec09]
 15: (RUN_ALL_TESTS()+0x11) [0x7f6f83c71cc8]
 16: (main()+0x3d) [0x7f6f83c71c57]
 17: (__libc_start_main()+0xf0) [0x7f6f78271790]
 18: (_start()+0x29) [0x7f6f83c53879]
 NOTE: a copy of the executable, or `objdump -rdS <executable>` is needed to interpret this.
2016-03-15 08:19:46.075594 7f6f845c0b80 -1 osdc/Objecter.cc: In function 'virtual Objecter::~Objecter()' thread 7f6f845c0b80 time 2016-03-15 08:19:46.072563
osdc/Objecter.cc: 4795: FAILED assert(!m_request_state_hook)