Need some help please!!!

[jacoblai]

panic: runtime error: invalid memory address or nil pointer dereference
[signal 0xb code=0x1 addr=0x0 pc=0x1f8918]

goroutine 34 [running]:
sync/atomic.AddUint64(0x1085c534, 0x30, 0x0, 0x40, 0x30)
/go-mips32/src/sync/atomic/asm_mips32x.s:140 +0x10
github.com/gomqtt/transport.(_NetConn).Receive(0x1085c500, 0x0, 0x0, 0x0, 0x0)
/opt/slu/src/github.com/gomqtt/transport/net_conn.go:256 +0xe6c
github.com/gomqtt/broker.(_Client).processor(0x1080cd20, 0x0, 0x0)
/opt/slu/src/github.com/gomqtt/broker/client.go:127 +0xc0
github.com/gomqtt/broker._Client.(github.com/gomqtt/broker.processor)·fm(0x0, 0x0)
/opt/slu/src/github.com/gomqtt/broker/client.go:66 +0x60
gopkg.in/tomb%2ev2.(_Tomb).run(0x1080cd4c, 0x1080ae60)
/opt/slu/src/gopkg.in/tomb.v2/tomb.go:153 +0x3c
created by gopkg.in/tomb%2ev2.(*Tomb).Go
/opt/slu/src/gopkg.in/tomb.v2/tomb.go:149 +0x1a0

goroutine 1 [chan receive]:
main.main()
/opt/slu/main.go:169 +0x1e70

goroutine 5 [syscall]:
os/signal.loop()
/go-mips32/src/os/signal/signal_unix.go:21 +0x30
created by os/signal.init·1
/go-mips32/src/os/signal/signal_unix.go:27 +0x58

goroutine 6 [IO wait]:
net.(_pollDesc).Wait(0x108715f8, 0x72, 0x0, 0x0)
/go-mips32/src/net/fd_poll_runtime.go:84 +0x4c
net.(_pollDesc).WaitRead(0x108715f8, 0x0, 0x0)
/go-mips32/src/net/fd_poll_runtime.go:89 +0x48
net.(_netFD).accept(0x108715c0, 0x0, 0x771d0cc8, 0x1087e19c)
/go-mips32/src/net/fd_unix.go:419 +0x3dc
net.(_TCPListener).AcceptTCP(0x1080a6f8, 0x2894b4, 0x0, 0x0)
/go-mips32/src/net/tcpsock_posix.go:234 +0x58
net.(_TCPListener).Accept(0x1080a6f8, 0x0, 0x0, 0x0, 0x0)
/go-mips32/src/net/tcpsock_posix.go:244 +0x48
github.com/bsm/redeo.(_Server).Serve(0x10868da0, 0x771d1010, 0x1080a6f8, 0x0, 0x0)
/opt/slu/src/github.com/bsm/redeo/server.go:147 +0xb0
Coolpy/Redico.func·001()
/opt/slu/src/Coolpy/Redico/Redico.go:78 +0x6c
created by Coolpy/Redico.(*Redico).Start
/opt/slu/src/Coolpy/Redico/Redico.go:80 +0x3e8

goroutine 7 [IO wait]:
net.(_pollDesc).Wait(0x10871bf8, 0x72, 0x0, 0x0)
/go-mips32/src/net/fd_poll_runtime.go:84 +0x4c
net.(_pollDesc).WaitRead(0x10871bf8, 0x0, 0x0)
/go-mips32/src/net/fd_poll_runtime.go:89 +0x48
net.(_netFD).Read(0x10871bc0, 0x10845000, 0x1000, 0x1000, 0x0, 0x771d0cc8, 0x1087ea54)
/go-mips32/src/net/fd_unix.go:242 +0x3e0
net.(_conn).Read(0x1080a7c8, 0x10845000, 0x1000, 0x1000, 0x0, 0x0, 0x0)
/go-mips32/src/net/net.go:121 +0xf0
bufio.(_Reader).fill(0x108306f0)
/go-mips32/src/bufio/bufio.go:97 +0x1fc
bufio.(_Reader).ReadSlice(0x108306f0, 0x10834c0a, 0x0, 0x0, 0x0, 0x0, 0x0)
/go-mips32/src/bufio/bufio.go:295 +0x2b0
bufio.(_Reader).ReadBytes(0x108306f0, 0x1083060a, 0x0, 0x0, 0x0, 0x0, 0x0)
/go-mips32/src/bufio/bufio.go:374 +0x78
bufio.(_Reader).ReadString(0x108306f0, 0xa, 0x0, 0x0, 0x0, 0x0)
/go-mips32/src/bufio/bufio.go:414 +0x50
github.com/bsm/redeo.ParseRequest(0x108306f0, 0x0, 0x0, 0x0)
/opt/slu/src/github.com/bsm/redeo/request.go:36 +0x60
github.com/bsm/redeo.(_Server).serveClient(0x10868da0, 0x10810550)
/opt/slu/src/github.com/bsm/redeo/server.go:180 +0x304
created by github.com/bsm/redeo.(_Server).Serve
/opt/slu/src/github.com/bsm/redeo/server.go:151 +0x154

goroutine 8 [select]:
github.com/syndtr/goleveldb/leveldb/util.(*BufferPool).drain(0x10892160)
/opt/slu/src/github.com/syndtr/goleveldb/leveldb/util/buffer_pool.go:206 +0x304
created by github.com/syndtr/goleveldb/leveldb/util.NewBufferPool
/opt/slu/src/github.com/syndtr/goleveldb/leveldb/util/buffer_pool.go:237 +0x3cc

goroutine 10 [select]:
github.com/syndtr/goleveldb/leveldb.(*DB).compactionError(0x1085c200)
/opt/slu/src/github.com/syndtr/goleveldb/leveldb/db_compaction.go:90 +0x578
created by github.com/syndtr/goleveldb/leveldb.openDB
/opt/slu/src/github.com/syndtr/goleveldb/leveldb/db.go:141 +0x848

goroutine 11 [select]:
github.com/syndtr/goleveldb/leveldb.(*DB).mpoolDrain(0x1085c200)
/opt/slu/src/github.com/syndtr/goleveldb/leveldb/db_state.go:97 +0x178
created by github.com/syndtr/goleveldb/leveldb.openDB
/opt/slu/src/github.com/syndtr/goleveldb/leveldb/db.go:142 +0x874

goroutine 12 [select]:
github.com/syndtr/goleveldb/leveldb.(*DB).tCompaction(0x1085c200)
/opt/slu/src/github.com/syndtr/goleveldb/leveldb/db_compaction.go:804 +0x914
created by github.com/syndtr/goleveldb/leveldb.openDB
/opt/slu/src/github.com/syndtr/goleveldb/leveldb/db.go:148 +0xac8

goroutine 13 [select]:
github.com/syndtr/goleveldb/leveldb.(*DB).mCompaction(0x1085c200)
/opt/slu/src/github.com/syndtr/goleveldb/leveldb/db_compaction.go:751 +0x2f4
created by github.com/syndtr/goleveldb/leveldb.openDB
/opt/slu/src/github.com/syndtr/goleveldb/leveldb/db.go:149 +0xaf4

goroutine 14 [select]:
github.com/syndtr/goleveldb/leveldb.(*DB).jWriter(0x1085c200)
/opt/slu/src/github.com/syndtr/goleveldb/leveldb/db_write.go:37 +0x1e0
created by github.com/syndtr/goleveldb/leveldb.openDB
/opt/slu/src/github.com/syndtr/goleveldb/leveldb/db.go:150 +0xb20

goroutine 15 [IO wait]:
net.(_pollDesc).Wait(0x10884a78, 0x72, 0x0, 0x0)
/go-mips32/src/net/fd_poll_runtime.go:84 +0x4c
net.(_pollDesc).WaitRead(0x10884a78, 0x0, 0x0)
/go-mips32/src/net/fd_poll_runtime.go:89 +0x48
net.(_netFD).Read(0x10884a40, 0x108ae000, 0x1000, 0x1000, 0x0, 0x771d0cc8, 0x1087e8e4)
/go-mips32/src/net/fd_unix.go:242 +0x3e0
net.(_conn).Read(0x1080a408, 0x108ae000, 0x1000, 0x1000, 0x0, 0x0, 0x0)
/go-mips32/src/net/net.go:121 +0xf0
bufio.(_Reader).fill(0x108302a0)
/go-mips32/src/bufio/bufio.go:97 +0x1fc
bufio.(_Reader).ReadSlice(0x108302a0, 0x1080c50a, 0x0, 0x0, 0x0, 0x0, 0x0)
/go-mips32/src/bufio/bufio.go:295 +0x2b0
bufio.(_Reader).ReadBytes(0x108302a0, 0x1083060a, 0x0, 0x0, 0x0, 0x0, 0x0)
/go-mips32/src/bufio/bufio.go:374 +0x78
bufio.(_Reader).ReadString(0x108302a0, 0xa, 0x0, 0x0, 0x0, 0x0)
/go-mips32/src/bufio/bufio.go:414 +0x50
github.com/bsm/redeo.ParseRequest(0x108302a0, 0x0, 0x0, 0x0)
/opt/slu/src/github.com/bsm/redeo/request.go:36 +0x60
github.com/bsm/redeo.(_Server).serveClient(0x10868da0, 0x10810140)
/opt/slu/src/github.com/bsm/redeo/server.go:180 +0x304
created by github.com/bsm/redeo.(_Server).Serve
/opt/slu/src/github.com/bsm/redeo/server.go:151 +0x154

goroutine 16 [select]:
github.com/syndtr/goleveldb/leveldb/util.(*BufferPool).drain(0x10892370)
/opt/slu/src/github.com/syndtr/goleveldb/leveldb/util/buffer_pool.go:206 +0x304
created by github.com/syndtr/goleveldb/leveldb/util.NewBufferPool
/opt/slu/src/github.com/syndtr/goleveldb/leveldb/util/buffer_pool.go:237 +0x3cc

goroutine 17 [select]:
github.com/syndtr/goleveldb/leveldb.(*DB).compactionError(0x1085c300)
/opt/slu/src/github.com/syndtr/goleveldb/leveldb/db_compaction.go:90 +0x578
created by github.com/syndtr/goleveldb/leveldb.openDB
/opt/slu/src/github.com/syndtr/goleveldb/leveldb/db.go:141 +0x848

goroutine 18 [select]:
github.com/syndtr/goleveldb/leveldb.(*DB).mpoolDrain(0x1085c300)
/opt/slu/src/github.com/syndtr/goleveldb/leveldb/db_state.go:97 +0x178
created by github.com/syndtr/goleveldb/leveldb.openDB
/opt/slu/src/github.com/syndtr/goleveldb/leveldb/db.go:142 +0x874

goroutine 19 [select]:
github.com/syndtr/goleveldb/leveldb.(*DB).tCompaction(0x1085c300)
/opt/slu/src/github.com/syndtr/goleveldb/leveldb/db_compaction.go:804 +0x914
created by github.com/syndtr/goleveldb/leveldb.openDB
/opt/slu/src/github.com/syndtr/goleveldb/leveldb/db.go:148 +0xac8

goroutine 20 [select]:
github.com/syndtr/goleveldb/leveldb.(*DB).mCompaction(0x1085c300)
/opt/slu/src/github.com/syndtr/goleveldb/leveldb/db_compaction.go:751 +0x2f4
created by github.com/syndtr/goleveldb/leveldb.openDB
/opt/slu/src/github.com/syndtr/goleveldb/leveldb/db.go:149 +0xaf4

goroutine 21 [select]:
github.com/syndtr/goleveldb/leveldb.(*DB).jWriter(0x1085c300)
/opt/slu/src/github.com/syndtr/goleveldb/leveldb/db_write.go:37 +0x1e0
created by github.com/syndtr/goleveldb/leveldb.openDB
/opt/slu/src/github.com/syndtr/goleveldb/leveldb/db.go:150 +0xb20

goroutine 22 [select]:
Coolpy/Hubs.delChan()
/opt/slu/src/Coolpy/Hubs/Hub.go:50 +0x388
created by Coolpy/Hubs.Connect
/opt/slu/src/Coolpy/Hubs/Hub.go:45 +0x1e8

goroutine 23 [select]:
Coolpy/Nodes.delChan()
/opt/slu/src/Coolpy/Nodes/Node.go:66 +0x3d0
created by Coolpy/Nodes.Connect
/opt/slu/src/Coolpy/Nodes/Node.go:61 +0x1e8

goroutine 24 [select]:
Coolpy/Controller.delChan()
/opt/slu/src/Coolpy/Controller/Controller.go:58 +0x2a0
created by Coolpy/Controller.Connect
/opt/slu/src/Coolpy/Controller/Controller.go:53 +0x1e8

goroutine 25 [chan receive]:
Coolpy/Values.delChan()
/opt/slu/src/Coolpy/Values/ValueDP.go:45 +0x84
created by Coolpy/Values.Connect
/opt/slu/src/Coolpy/Values/ValueDP.go:39 +0x1e8

goroutine 26 [chan receive]:
Coolpy/Gpss.delChan()
/opt/slu/src/Coolpy/Gpss/GpsDP.go:48 +0x84
created by Coolpy/Gpss.Connect
/opt/slu/src/Coolpy/Gpss/GpsDP.go:42 +0x1e8

goroutine 27 [chan receive]:
Coolpy/Gens.delChan()
/opt/slu/src/Coolpy/Gens/GenDP.go:45 +0x84
created by Coolpy/Gens.Connect
/opt/slu/src/Coolpy/Gens/GenDP.go:39 +0x1e8

goroutine 28 [chan receive]:
Coolpy/Photos.delChan()
/opt/slu/src/Coolpy/Photos/PhotoDP.go:47 +0x84
created by Coolpy/Photos.Connect
/opt/slu/src/Coolpy/Photos/PhotoDP.go:41 +0x1e8

goroutine 30 [IO wait]:
net.(_pollDesc).Wait(0x108706b8, 0x72, 0x0, 0x0)
/go-mips32/src/net/fd_poll_runtime.go:84 +0x4c
net.(_pollDesc).WaitRead(0x108706b8, 0x0, 0x0)
/go-mips32/src/net/fd_poll_runtime.go:89 +0x48
net.(_netFD).accept(0x10870680, 0x0, 0x771d0cc8, 0x1087eb08)
/go-mips32/src/net/fd_unix.go:419 +0x3dc
net.(_TCPListener).AcceptTCP(0x1080ae38, 0x834c0, 0x0, 0x0)
/go-mips32/src/net/tcpsock_posix.go:234 +0x58
net.(_TCPListener).Accept(0x1080ae38, 0x0, 0x0, 0x0, 0x0)
/go-mips32/src/net/tcpsock_posix.go:244 +0x48
net/http.(_Server).Serve(0x10870740, 0x771d1010, 0x1080ae38, 0x0, 0x0)
/go-mips32/src/net/http/server.go:1728 +0xac
net/http.Serve(0x771d1010, 0x1080ae38, 0x771d2b50, 0x1080ae48, 0x0, 0x0)
/go-mips32/src/net/http/server.go:1606 +0xc0
main.func·002()
/opt/slu/main.go:127 +0x328
created by main.main
/opt/slu/main.go:131 +0x1400

goroutine 31 [IO wait]:
net.(_pollDesc).Wait(0x108707f8, 0x72, 0x0, 0x0)
/go-mips32/src/net/fd_poll_runtime.go:84 +0x4c
net.(_pollDesc).WaitRead(0x108707f8, 0x0, 0x0)
/go-mips32/src/net/fd_poll_runtime.go:89 +0x48
net.(_netFD).accept(0x108707c0, 0x0, 0x771d0cc8, 0x1087eb2c)
/go-mips32/src/net/fd_unix.go:419 +0x3dc
net.(_TCPListener).AcceptTCP(0x1080ae50, 0x834c0, 0x0, 0x0)
/go-mips32/src/net/tcpsock_posix.go:234 +0x58
net/http.tcpKeepAliveListener.Accept(0x1080ae50, 0x0, 0x0, 0x0, 0x0)
/go-mips32/src/net/http/server.go:1976 +0x48
net/http.(_Server).Serve(0x10870780, 0x771d2be0, 0x1080ae50, 0x0, 0x0)
/go-mips32/src/net/http/server.go:1728 +0xac
net/http.(_Server).ListenAndServe(0x10870780, 0x0, 0x0)
/go-mips32/src/net/http/server.go:1718 +0x15c
net/http.ListenAndServe(0x1087eb24, 0x5, 0x0, 0x0, 0x0, 0x0)
/go-mips32/src/net/http/server.go:1808 +0xe4
main.func·003()
/opt/slu/main.go:143 +0xc4
created by main.main
/opt/slu/main.go:147 +0x1990

goroutine 32 [chan receive]:
main.func·004()
/opt/slu/main.go:155 +0x78
created by main.main
/opt/slu/main.go:168 +0x1e44

goroutine 33 [IO wait]:
net.(_pollDesc).Wait(0x10870178, 0x72, 0x0, 0x0)
/go-mips32/src/net/fd_poll_runtime.go:84 +0x4c
net.(_pollDesc).WaitRead(0x10870178, 0x0, 0x0)
/go-mips32/src/net/fd_poll_runtime.go:89 +0x48
net.(_netFD).accept(0x10870140, 0x0, 0x771d0cc8, 0x1087eb6c)
/go-mips32/src/net/fd_unix.go:419 +0x3dc
net.(_TCPListener).AcceptTCP(0x1080ae18, 0x771bf000, 0x0, 0x0)
/go-mips32/src/net/tcpsock_posix.go:234 +0x58
net.(_TCPListener).Accept(0x1080ae18, 0x0, 0x0, 0x0, 0x0)
/go-mips32/src/net/tcpsock_posix.go:244 +0x48
github.com/gomqtt/transport.(_NetServer).Accept(0x1080ae20, 0x0, 0x0, 0x0, 0x0)
/opt/slu/src/github.com/gomqtt/transport/net_server.go:54 +0x78
github.com/gomqtt/broker.func·003(0x0, 0x0)
/opt/slu/src/github.com/gomqtt/broker/engine.go:99 +0x78
gopkg.in/tomb%2ev2.(_Tomb).run(0x1080cbdc, 0x1087eaf0)
/opt/slu/src/gopkg.in/tomb.v2/tomb.go:153 +0x3c
created by gopkg.in/tomb%2ev2.(_Tomb).Go
/opt/slu/src/gopkg.in/tomb.v2/tomb.go:149 +0x1a0