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I met this when I am trying to run multiple sanity at the same time on a single MDT system cause LBUG,
LustreError: 3723:0:(osd_handler.c:1172:osd_object_write_lock()) ASSERTION( obj->oo_owner != env ) failed:
LustreError: 3723:0:(osd_handler.c:1172:osd_object_write_lock()) LBUG
Pid: 3723, comm: mdt_rdpg00_000
Call Trace:
[<ffffffffa0603905>] libcfs_debug_dumpstack+0x55/0x80 [libcfs]
[<ffffffffa0603f17>] lbug_with_loc+0x47/0xb0 [libcfs]
[<ffffffffa0d92af2>] osd_object_write_lock+0x102/0x140 [osd_ldiskfs]
[<ffffffffa0ec006d>] lod_load_striping+0x8d/0x510 [lod]
[<ffffffffa0ecabcb>] lod_declare_object_destroy+0x17b/0x3e0 [lod]
[<ffffffffa0ca818f>] mdo_declare_destroy+0x3f/0x100 [mdd]
[<ffffffffa0caebb3>] mdd_close+0x7a3/0xcc0 [mdd]
[<ffffffffa0e3b0ee>] mdt_mfd_close+0xfe/0x700 [mdt]
[<ffffffffa0e3bd6a>] mdt_close+0x67a/0xad0 [mdt]
[<ffffffffa0e13fd2>] mdt_handle_common+0x8e2/0x1710 [mdt]
[<ffffffffa0e4a6f5>] mds_readpage_handle+0x15/0x20 [mdt]
[<ffffffffa091b24c>] ptlrpc_server_handle_request+0x41c/0xe00 [ptlrpc]
[<ffffffffa060465e>] ? cfs_timer_arm+0xe/0x10 [libcfs]
[<ffffffffa0912639>] ? ptlrpc_wait_event+0xa9/0x290 [ptlrpc]
[<ffffffffa0614591>] ? libcfs_debug_msg+0x41/0x50 [libcfs]
[<ffffffff810533f3>] ? __wake_up+0x53/0x70
[<ffffffffa091c7e5>] ptlrpc_main+0xbb5/0x1970 [ptlrpc]
[<ffffffffa091bc30>] ? ptlrpc_main+0x0/0x1970 [ptlrpc]
[<ffffffff8100c14a>] child_rip+0xa/0x20
[<ffffffffa091bc30>] ? ptlrpc_main+0x0/0x1970 [ptlrpc]
[<ffffffffa091bc30>] ? ptlrpc_main+0x0/0x1970 [ptlrpc]
[<ffffffff8100c140>] ? child_rip+0x0/0x20
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