After i updated the lastest code, those messages occured. Every reboot, it can occur at least 10 times.
[ 17.763939] =====================================
[ 17.763942] [ BUG: rpc.nfsd/5066 still has locks held! ]
[ 17.763944] 3.8.0+ #131 Not tainted
[ 17.763945] -------------------------------------
[ 17.763947] 2 locks held by rpc.nfsd/5066:
[ 17.763948] #0: (nfsd_mutex){......}, at: [<ffffffffa012b45f>] write_ports+0x2f/0x3f0 [nfsd]
[ 17.763963] #1: (rpcb_create_local_mutex){......}, at: [<ffffffffa00824fe>] rpcb_create_local+0x3e/0x90 [sunrpc]
[ 17.763986]
[ 17.763986] stack backtrace:
[ 17.763989] Pid: 5066, comm: rpc.nfsd Not tainted 3.8.0+ #131
[ 17.763990] Call Trace:
[ 17.763996] [<ffffffff810917ea>] debug_check_no_locks_held+0x9a/0xa0
[ 17.764003] [<ffffffffa0076a35>] rpc_wait_bit_killable+0x75/0xa0 [sunrpc]
[ 17.764022] [<ffffffff816f2dd7>] __wait_on_bit+0x57/0x80
[ 17.764031] [<ffffffffa00769c0>] ? rpc_queue_empty+0x40/0x40 [sunrpc]
[ 17.764038] [<ffffffffa006ce10>] ? call_bind_status+0x2f0/0x2f0 [sunrpc]
[ 17.764064] [<ffffffff816f2e77>] out_of_line_wait_on_bit+0x77/0x90
[ 17.764068] [<ffffffff81060d80>] ? autoremove_wake_function+0x40/0x40
[ 17.764075] [<ffffffffa006ce10>] ? call_bind_status+0x2f0/0x2f0 [sunrpc]
[ 17.764084] [<ffffffffa0077f6c>] __rpc_execute+0x11c/0x400 [sunrpc]
[ 17.764087] [<ffffffff810609d9>] ? wake_up_bit+0x29/0x40
[ 17.764096] [<ffffffffa0078918>] rpc_execute+0x68/0xc0 [sunrpc]
[ 17.764104] [<ffffffffa006f4f0>] rpc_run_task+0x70/0x90 [sunrpc]
[ 17.764112] [<ffffffffa006f5fe>] rpc_call_sync+0x3e/0xa0 [sunrpc]
[ 17.764120] [<ffffffffa006f6ad>] rpc_ping+0x4d/0x70 [sunrpc]
[ 17.764127] [<ffffffffa006f8a8>] rpc_create+0x158/0x1f0 [sunrpc]
[ 17.764137] [<ffffffffa008236a>] ? rpcb_get_local+0xaa/0xd0 [sunrpc]
[ 17.764147] [<ffffffffa0082147>] rpcb_create_local_unix+0x57/0xe0 [sunrpc]
[ 17.764173] [<ffffffffa0082530>] rpcb_create_local+0x70/0x90 [sunrpc]
[ 17.764182] [<ffffffffa007b49e>] svc_rpcb_setup+0x1e/0x40 [sunrpc]
[ 17.764191] [<ffffffffa007b4ef>] svc_bind+0x2f/0x40 [sunrpc]
[ 17.764198] [<ffffffffa0129546>] nfsd_create_serv+0x106/0x1e0 [nfsd]
[ 17.764210] [<ffffffffa0129440>] ? nfsd_reset_versions+0x80/0x80 [nfsd]
[ 17.764216] [<ffffffffa012b74c>] write_ports+0x31c/0x3f0 [nfsd]
[ 17.764222] [<ffffffffa012b680>] ? write_ports+0x250/0x3f0 [nfsd]
[ 17.764230] [<ffffffff816f6416>] ? _raw_spin_unlock+0x26/0x30
[ 17.764234] [<ffffffff811660b3>] ? simple_transaction_get+0xc3/0xe0
[ 17.764240] [<ffffffffa012b430>] ? exports_open+0xb0/0xb0 [nfsd]
[ 17.764250] [<ffffffffa012a3fc>] nfsctl_transaction_write+0x5c/0x80 [nfsd]
[ 17.764254] [<ffffffff81140641>] vfs_write+0xb1/0x180
[ 17.764257] [<ffffffff81140980>] sys_write+0x50/0xa0
[ 17.764265] [<ffffffff816fe252>] system_call_fastpath+0x16/0x1b?韬{.n?????%??檩??w?{.n???{炳w忐)?骅w* jg????????G??⒏ ⒎?:+v???????? ????＂??????
