Any particular reason why you have the image mounted via the kernel client while performing a benchmark? Not to say this is the reason for the crash, but strange since 'rbd bench-write' will not test the kernel IO speed since it uses the user-mode library. Are you able to test bench-write with a Ceph Hammer-release client? -- Jason > Hiya. Playing with a small cephs setup from the Quick start documentation. > > Seeing an issue running rdb bench-write. Initial trace is provided > below, let me know if you need other information. fwiw the rados bench > works just fine. > > Any idea what is causing this? Is it a parsing issue in the rbd command? > > Thanks > --Glenn > > root@ceph-client:~# uname -a > Linux ceph-client 4.1.6-rh1-xenU #1 SMP Fri Sep 4 02:50:30 UTC 2015 > x86_64 x86_64 x86_64 GNU/Linux > > root@ceph-client:~# rbd --version > ceph version 0.80.10 (ea6c958c38df1216bf95c927f143d8b13c4a9e70) > > root@ceph-client:~# rbd showmapped > id pool image snap device > 0 rbd foo - /dev/rbd0 > > root@ceph-client:/mnt/ceph-block-device# rbd info foo > rbd image 'foo': > size 4096 MB in 1024 objects > order 22 (4096 kB objects) > block_name_prefix: rb.0.1073.238e1f29 > format: 1 > root@ceph-client:/mnt/ceph-block-device# man rbd > > root@ceph-client:/mnt/ceph-block-device# rbd bench-write foo > bench-write io_size 4096 io_threads 16 bytes 1073741824 pattern seq > SEC OPS OPS/SEC BYTES/SEC > *** Error in `rbd': free(): invalid pointer: 0x56a727a8 *** > *** Caught signal (Aborted) ** > in thread f26feb40 > ceph version 0.80.10 (ea6c958c38df1216bf95c927f143d8b13c4a9e70) > 1: (()+0x24a20) [0x5664aa20] > 2: [0xf77abe50] > 3: [0xf77abe80] > 4: (gsignal()+0x47) [0xf6a60607] > 5: (abort()+0x143) [0xf6a63a33] > 6: (()+0x68e53) [0xf6a9ae53] > 7: (()+0x7333a) [0xf6aa533a] > 8: (()+0x73fad) [0xf6aa5fad] > 9: (operator delete(void*)+0x1f) [0xf6c4682f] > 10: (librbd::C_AioWrite::~C_AioWrite()+0x26) [0xf76f90b6] > 11: (Context::complete(int)+0x1f) [0xf76ca52f] > 12: (librbd::rados_req_cb(void*, void*)+0x48) [0xf76d7f58] > 13: (librados::C_AioSafe::finish(int)+0x2b) [0xf6eb719b] > 14: (Context::complete(int)+0x17) [0xf6e8f6f7] > 15: (Finisher::finisher_thread_entry()+0x1a8) [0xf6f5b3a8] > 16: (Finisher::FinisherThread::entry()+0x1e) [0xf7746f7e] > 17: (Thread::entry_wrapper()+0x4f) [0xf6f82ebf] > 18: (Thread::_entry_func(void*)+0x1b) [0xf6f82efb] > 19: (()+0x6f70) [0xf6d1ff70] > 20: (clone()+0x5e) [0xf6b1dbee] > 2015-09-04 04:30:46.755568 f26feb40 -1 *** Caught signal (Aborted) ** > in thread f26feb40 > _______________________________________________ > ceph-users mailing list > ceph-users@xxxxxxxxxxxxxx > http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com > _______________________________________________ ceph-users mailing list ceph-users@xxxxxxxxxxxxxx http://lists.ceph.com/listinfo.cgi/ceph-users-ceph.com
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