ethash deadlock ?

gistfile1.txt

goroutine 24948 [running]:
runtime/pprof.writeGoroutineStacks(0x77b08e0, 0xc33acd9040, 0x0, 0x0)
	/usr/local/Cellar/go/1.4.1/libexec/src/runtime/pprof/pprof.go:511 +0x8d
runtime/pprof.writeGoroutine(0x77b08e0, 0xc33acd9040, 0x2, 0x0, 0x0)
	/usr/local/Cellar/go/1.4.1/libexec/src/runtime/pprof/pprof.go:500 +0x4f
runtime/pprof.(*Profile).WriteTo(0x4cb7160, 0x77b08e0, 0xc33acd9040, 0x2, 0x0, 0x0)
	/usr/local/Cellar/go/1.4.1/libexec/src/runtime/pprof/pprof.go:229 +0xd5
net/http/pprof.handler.ServeHTTP(0xc22f16e9a1, 0x9, 0x77b0880, 0xc33acd9040, 0xc2081acea0)
	/usr/local/Cellar/go/1.4.1/libexec/src/net/http/pprof/pprof.go:169 +0x35f
net/http/pprof.Index(0x77b0880, 0xc33acd9040, 0xc2081acea0)
	/usr/local/Cellar/go/1.4.1/libexec/src/net/http/pprof/pprof.go:181 +0x15e
net/http.HandlerFunc.ServeHTTP(0x4a79f28, 0x77b0880, 0xc33acd9040, 0xc2081acea0)
	/usr/local/Cellar/go/1.4.1/libexec/src/net/http/server.go:1265 +0x41
net/http.(*ServeMux).ServeHTTP(0xc20803c690, 0x77b0880, 0xc33acd9040, 0xc2081acea0)
	/usr/local/Cellar/go/1.4.1/libexec/src/net/http/server.go:1541 +0x17d
net/http.serverHandler.ServeHTTP(0xc2080c8000, 0x77b0880, 0xc33acd9040, 0xc2081acea0)
	/usr/local/Cellar/go/1.4.1/libexec/src/net/http/server.go:1703 +0x19a
net/http.(*conn).serve(0xc20dde72c0)
	/usr/local/Cellar/go/1.4.1/libexec/src/net/http/server.go:1204 +0xb57
created by net/http.(*Server).Serve
	/usr/local/Cellar/go/1.4.1/libexec/src/net/http/server.go:1751 +0x35e

goroutine 1 [select, 444 minutes]:
github.com/peterh/liner.(*State).readNext(0xc20bb95400, 0x0, 0x0, 0x0, 0x0)
	/Users/tron/Work/ethereum/go-ethereum/Godeps/_workspace/src/github.com/peterh/liner/input.go:140 +0x2a1d
github.com/peterh/liner.(*State).Prompt(0xc20bb95400, 0x47ec370, 0x2, 0x0, 0x0, 0x0, 0x0)
	/Users/tron/Work/ethereum/go-ethereum/Godeps/_workspace/src/github.com/peterh/liner/line.go:494 +0x443
main.(*jsre).interactive(0xc20c31cd40)
	/Users/tron/Work/ethereum/go/src/github.com/ethereum/go-ethereum/cmd/geth/js.go:172 +0x72
main.console(0xc2080a62a0)
	/Users/tron/Work/ethereum/go/src/github.com/ethereum/go-ethereum/cmd/geth/main.go:297 +0x1d1
github.com/codegangsta/cli.Command.Run(0x4800090, 0x7, 0x0, 0x0, 0x0, 0x0, 0x0, 0x4901a70, 0x30, 0x4a86270, ...)
	/Users/tron/Work/ethereum/go-ethereum/Godeps/_workspace/src/github.com/codegangsta/cli/command.go:118 +0x104b
github.com/codegangsta/cli.(*App).Run(0xc2080be000, 0xc20800a000, 0x15, 0x15, 0x0, 0x0)
	/Users/tron/Work/ethereum/go-ethereum/Godeps/_workspace/src/github.com/codegangsta/cli/app.go:177 +0xdf6
main.main()
	/Users/tron/Work/ethereum/go/src/github.com/ethereum/go-ethereum/cmd/geth/main.go:269 +0xc7

goroutine 6 [select]:
github.com/ethereum/go-ethereum/logger.dispatchLoop()
	/Users/tron/Work/ethereum/go/src/github.com/ethereum/go-ethereum/logger/sys.go:65 +0x6d1
created by github.com/ethereum/go-ethereum/logger.init·1
	/Users/tron/Work/ethereum/go/src/github.com/ethereum/go-ethereum/logger/sys.go:44 +0x25

goroutine 7 [chan receive]:
github.com/ethereum/go-ethereum/logger/glog.(*loggingT).flushDaemon(0x4cc97e0)
	/Users/tron/Work/ethereum/go/src/github.com/ethereum/go-ethereum/logger/glog/glog.go:897 +0x78
created by github.com/ethereum/go-ethereum/logger/glog.init·1
	/Users/tron/Work/ethereum/go/src/github.com/ethereum/go-ethereum/logger/glog/glog.go:428 +0x77

goroutine 17 [syscall, 446 minutes, locked to thread]:
runtime.goexit()
	/usr/local/Cellar/go/1.4.1/libexec/src/runtime/asm_amd64.s:2232 +0x1

goroutine 9 [syscall, 446 minutes]:
os/signal.loop()
	/usr/local/Cellar/go/1.4.1/libexec/src/os/signal/signal_unix.go:21 +0x1f
created by os/signal.init·1
	/usr/local/Cellar/go/1.4.1/libexec/src/os/signal/signal_unix.go:27 +0x35

goroutine 10 [IO wait]:
net.(*pollDesc).Wait(0xc2081d2060, 0x72, 0x0, 0x0)
	/usr/local/Cellar/go/1.4.1/libexec/src/net/fd_poll_runtime.go:84 +0x47
net.(*pollDesc).WaitRead(0xc2081d2060, 0x0, 0x0)
	/usr/local/Cellar/go/1.4.1/libexec/src/net/fd_poll_runtime.go:89 +0x43
net.(*netFD).accept(0xc2081d2000, 0x0, 0x4e861c8, 0xc223dd4af0)
	/usr/local/Cellar/go/1.4.1/libexec/src/net/fd_unix.go:419 +0x40b
net.(*TCPListener).AcceptTCP(0xc2081d4000, 0x422455e, 0x0, 0x0)
	/usr/local/Cellar/go/1.4.1/libexec/src/net/tcpsock_posix.go:234 +0x4e
net/http.tcpKeepAliveListener.Accept(0xc2081d4000, 0x0, 0x0, 0x0, 0x0)
	/usr/local/Cellar/go/1.4.1/libexec/src/net/http/server.go:1976 +0x4c
net/http.(*Server).Serve(0xc2080c8000, 0x4e88228, 0xc2081d4000, 0x0, 0x0)
	/usr/local/Cellar/go/1.4.1/libexec/src/net/http/server.go:1728 +0x92
net/http.(*Server).ListenAndServe(0xc2080c8000, 0x0, 0x0)
	/usr/local/Cellar/go/1.4.1/libexec/src/net/http/server.go:1718 +0x154
net/http.ListenAndServe(0x4845890, 0xe, 0x0, 0x0, 0x0, 0x0)
	/usr/local/Cellar/go/1.4.1/libexec/src/net/http/server.go:1808 +0xba
main.func·006()
	/Users/tron/Work/ethereum/go/src/github.com/ethereum/go-ethereum/cmd/geth/main.go:263 +0x48
created by main.main
	/Users/tron/Work/ethereum/go/src/github.com/ethereum/go-ethereum/cmd/geth/main.go:264 +0x31

goroutine 83 [select]:
github.com/ethereum/go-ethereum/p2p/discover.(*udp).loop(0xc20c34a500)
	/Users/tron/Work/ethereum/go/src/github.com/ethereum/go-ethereum/p2p/discover/udp.go:279 +0xb53
created by github.com/ethereum/go-ethereum/p2p/discover.newUDP
	/Users/tron/Work/ethereum/go/src/github.com/ethereum/go-ethereum/p2p/discover/udp.go:180 +0x4a8

goroutine 84 [IO wait]:
net.(*pollDesc).Wait(0xc20b20bd40, 0x72, 0x0, 0x0)
	/usr/local/Cellar/go/1.4.1/libexec/src/net/fd_poll_runtime.go:84 +0x47
net.(*pollDesc).WaitRead(0xc20b20bd40, 0x0, 0x0)
	/usr/local/Cellar/go/1.4.1/libexec/src/net/fd_poll_runtime.go:89 +0x43
net.(*netFD).readFrom(0xc20b20bce0, 0xc20c389000, 0x1000, 0x1000, 0x0, 0x0, 0x0, 0x4e861c8, 0xc333b71748)
	/usr/local/Cellar/go/1.4.1/libexec/src/net/fd_unix.go:269 +0x4a1
net.(*UDPConn).ReadFromUDP(0xc20a1d2b58, 0xc20c389000, 0x1000, 0x1000, 0x3, 0x0, 0x0, 0x0)
	/usr/local/Cellar/go/1.4.1/libexec/src/net/udpsock_posix.go:67 +0x124
github.com/ethereum/go-ethereum/p2p/discover.(*udp).readLoop(0xc20c34a500)
	/Users/tron/Work/ethereum/go/src/github.com/ethereum/go-ethereum/p2p/discover/udp.go:373 +0x116
created by github.com/ethereum/go-ethereum/p2p/discover.newUDP
	/Users/tron/Work/ethereum/go/src/github.com/ethereum/go-ethereum/p2p/discover/udp.go:181 +0x4c5

goroutine 85 [IO wait, 446 minutes]:
net.(*pollDesc).Wait(0xc20c3a6140, 0x72, 0x0, 0x0)
	/usr/local/Cellar/go/1.4.1/libexec/src/net/fd_poll_runtime.go:84 +0x47
net.(*pollDesc).WaitRead(0xc20c3a6140, 0x0, 0x0)
	/usr/local/Cellar/go/1.4.1/libexec/src/net/fd_poll_runtime.go:89 +0x43
net.(*netFD).accept(0xc20c3a60e0, 0x0, 0x4e861c8, 0xc209b23328)
	/usr/local/Cellar/go/1.4.1/libexec/src/net/fd_unix.go:419 +0x40b
net.(*TCPListener).AcceptTCP(0xc2085f8d18, 0x4e74000, 0x0, 0x0)
	/usr/local/Cellar/go/1.4.1/libexec/src/net/tcpsock_posix.go:234 +0x4e
net.(*TCPListener).Accept(0xc2085f8d18, 0x0, 0x0, 0x0, 0x0)
	/usr/local/Cellar/go/1.4.1/libexec/src/net/tcpsock_posix.go:244 +0x4c
github.com/ethereum/go-ethereum/p2p.(*Server).listenLoop(0xc208162c60)
	/Users/tron/Work/ethereum/go/src/github.com/ethereum/go-ethereum/p2p/server.go:304 +0x32e
created by github.com/ethereum/go-ethereum/p2p.(*Server).startListening
	/Users/tron/Work/ethereum/go/src/github.com/ethereum/go-ethereum/p2p/server.go:242 +0x226

goroutine 34 [chan receive]:
github.com/ethereum/go-ethereum/logger.sysLoop(0x4e87fa0, 0xc2080dfa00, 0xc2081a6000, 0xc20801f860)
	/Users/tron/Work/ethereum/go/src/github.com/ethereum/go-ethereum/logger/sys.go:101 +0x5a
created by github.com/ethereum/go-ethereum/logger.func·001
	/Users/tron/Work/ethereum/go/src/github.com/ethereum/go-ethereum/logger/sys.go:61 +0x176

goroutine 12 [select, 444 minutes]:
github.com/syndtr/goleveldb/leveldb.(*DB).compactionError(0xc208031b00)
	/Users/tron/Work/ethereum/go-ethereum/Godeps/_workspace/src/github.com/syndtr/goleveldb/leveldb/db_compaction.go:111 +0x284
created by github.com/syndtr/goleveldb/leveldb.openDB
	/Users/tron/Work/ethereum/go-ethereum/Godeps/_workspace/src/github.com/syndtr/goleveldb/leveldb/db.go:116 +0x7dd

goroutine 13 [select, 444 minutes]:
github.com/syndtr/goleveldb/leveldb.(*DB).tCompaction(0xc208031b00)
	/Users/tron/Work/ethereum/go-ethereum/Godeps/_workspace/src/github.com/syndtr/goleveldb/leveldb/db_compaction.go:666 +0x877
created by github.com/syndtr/goleveldb/leveldb.openDB
	/Users/tron/Work/ethereum/go-ethereum/Godeps/_workspace/src/github.com/syndtr/goleveldb/leveldb/db.go:119 +0x821

goroutine 14 [select, 446 minutes]:
github.com/syndtr/goleveldb/leveldb.(*DB).mCompaction(0xc208031b00)
	/Users/tron/Work/ethereum/go-ethereum/Godeps/_workspace/src/github.com/syndtr/goleveldb/leveldb/db_compaction.go:615 +0x21a
created by github.com/syndtr/goleveldb/leveldb.openDB
	/Users/tron/Work/ethereum/go-ethereum/Godeps/_workspace/src/github.com/syndtr/goleveldb/leveldb/db.go:120 +0x83b

goroutine 15 [select, 446 minutes]:
github.com/syndtr/goleveldb/leveldb.(*DB).jWriter(0xc208031b00)
	/Users/tron/Work/ethereum/go-ethereum/Godeps/_workspace/src/github.com/syndtr/goleveldb/leveldb/db_write.go:37 +0x197
created by github.com/syndtr/goleveldb/leveldb.openDB
	/Users/tron/Work/ethereum/go-ethereum/Godeps/_workspace/src/github.com/syndtr/goleveldb/leveldb/db.go:121 +0x855

goroutine 16 [select]:
github.com/ethereum/go-ethereum/ethdb.(*LDBDatabase).update(0xc2081c8a80)
	/Users/tron/Work/ethereum/go/src/github.com/ethereum/go-ethereum/ethdb/database.go:127 +0x46e
created by github.com/ethereum/go-ethereum/ethdb.NewLDBDatabase
	/Users/tron/Work/ethereum/go/src/github.com/ethereum/go-ethereum/ethdb/database.go:38 +0x1c5

goroutine 66 [select, 408 minutes]:
github.com/syndtr/goleveldb/leveldb.(*DB).compactionError(0xc208031d40)
	/Users/tron/Work/ethereum/go-ethereum/Godeps/_workspace/src/github.com/syndtr/goleveldb/leveldb/db_compaction.go:111 +0x284
created by github.com/syndtr/goleveldb/leveldb.openDB
	/Users/tron/Work/ethereum/go-ethereum/Godeps/_workspace/src/github.com/syndtr/goleveldb/leveldb/db.go:116 +0x7dd

goroutine 67 [select, 408 minutes]:
github.com/syndtr/goleveldb/leveldb.(*DB).tCompaction(0xc208031d40)
	/Users/tron/Work/ethereum/go-ethereum/Godeps/_workspace/src/github.com/syndtr/goleveldb/leveldb/db_compaction.go:666 +0x877
created by github.com/syndtr/goleveldb/leveldb.openDB
	/Users/tron/Work/ethereum/go-ethereum/Godeps/_workspace/src/github.com/syndtr/goleveldb/leveldb/db.go:119 +0x821

goroutine 68 [select, 446 minutes]:
github.com/syndtr/goleveldb/leveldb.(*DB).mCompaction(0xc208031d40)
	/Users/tron/Work/ethereum/go-ethereum/Godeps/_workspace/src/github.com/syndtr/goleveldb/leveldb/db_compaction.go:615 +0x21a
created by github.com/syndtr/goleveldb/leveldb.openDB
	/Users/tron/Work/ethereum/go-ethereum/Godeps/_workspace/src/github.com/syndtr/goleveldb/leveldb/db.go:120 +0x83b

goroutine 69 [select, 444 minutes]:
github.com/syndtr/goleveldb/leveldb.(*DB).jWriter(0xc208031d40)
	/Users/tron/Work/ethereum/go-ethereum/Godeps/_workspace/src/github.com/syndtr/goleveldb/leveldb/db_write.go:37 +0x197
created by github.com/syndtr/goleveldb/leveldb.openDB
	/Users/tron/Work/ethereum/go-ethereum/Godeps/_workspace/src/github.com/syndtr/goleveldb/leveldb/db.go:121 +0x855

goroutine 70 [select]:
github.com/ethereum/go-ethereum/ethdb.(*LDBDatabase).update(0xc20818d7a0)
	/Users/tron/Work/ethereum/go/src/github.com/ethereum/go-ethereum/ethdb/database.go:127 +0x46e
created by github.com/ethereum/go-ethereum/ethdb.NewLDBDatabase
	/Users/tron/Work/ethereum/go/src/github.com/ethereum/go-ethereum/ethdb/database.go:38 +0x1c5

goroutine 71 [select, 446 minutes]:
github.com/syndtr/goleveldb/leveldb.(*DB).compactionError(0xc208608000)
	/Users/tron/Work/ethereum/go-ethereum/Godeps/_workspace/src/github.com/syndtr/goleveldb/leveldb/db_compaction.go:111 +0x284
created by github.com/syndtr/goleveldb/leveldb.openDB
	/Users/tron/Work/ethereum/go-ethereum/Godeps/_workspace/src/github.com/syndtr/goleveldb/leveldb/db.go:116 +0x7dd

goroutine 72 [select, 446 minutes]:
github.com/syndtr/goleveldb/leveldb.(*DB).tCompaction(0xc208608000)
	/Users/tron/Work/ethereum/go-ethereum/Godeps/_workspace/src/github.com/syndtr/goleveldb/leveldb/db_compaction.go:666 +0x877
created by github.com/syndtr/goleveldb/leveldb.openDB
	/Users/tron/Work/ethereum/go-ethereum/Godeps/_workspace/src/github.com/syndtr/goleveldb/leveldb/db.go:119 +0x821

goroutine 73 [select, 446 minutes]:
github.com/syndtr/goleveldb/leveldb.(*DB).mCompaction(0xc208608000)
	/Users/tron/Work/ethereum/go-ethereum/Godeps/_workspace/src/github.com/syndtr/goleveldb/leveldb/db_compaction.go:615 +0x21a
created by github.com/syndtr/goleveldb/leveldb.openDB
	/Users/tron/Work/ethereum/go-ethereum/Godeps/_workspace/src/github.com/syndtr/goleveldb/leveldb/db.go:120 +0x83b

goroutine 74 [select, 446 minutes]:
github.com/syndtr/goleveldb/leveldb.(*DB).jWriter(0xc208608000)
	/Users/tron/Work/ethereum/go-ethereum/Godeps/_workspace/src/github.com/syndtr/goleveldb/leveldb/db_write.go:37 +0x197
created by github.com/syndtr/goleveldb/leveldb.openDB
	/Users/tron/Work/ethereum/go-ethereum/Godeps/_workspace/src/github.com/syndtr/goleveldb/leveldb/db.go:121 +0x855

goroutine 75 [select]:
github.com/ethereum/go-ethereum/ethdb.(*LDBDatabase).update(0xc208114060)
	/Users/tron/Work/ethereum/go/src/github.com/ethereum/go-ethereum/ethdb/database.go:127 +0x46e
created by github.com/ethereum/go-ethereum/ethdb.NewLDBDatabase
	/Users/tron/Work/ethereum/go/src/github.com/ethereum/go-ethereum/ethdb/database.go:38 +0x1c5

goroutine 82 [select]:
github.com/ethereum/go-ethereum/core.(*ChainManager).update(0xc2081ad520)
	/Users/tron/Work/ethereum/go/src/github.com/ethereum/go-ethereum/core/chain_manager.go:592 +0x60d
created by github.com/ethereum/go-ethereum/core.NewChainManager
	/Users/tron/Work/ethereum/go/src/github.com/ethereum/go-ethereum/core/chain_manager.go:107 +0x343

goroutine 22 [select, 446 minutes]:
github.com/ethereum/go-ethereum/event/filter.(*Filters).loop(0xc20a938ae0)
	/Users/tron/Work/ethereum/go/src/github.com/ethereum/go-ethereum/event/filter/filter.go:57 +0x2f1
created by github.com/ethereum/go-ethereum/event/filter.(*Filters).Start
	/Users/tron/Work/ethereum/go/src/github.com/ethereum/go-ethereum/event/filter/filter.go:32 +0x32

goroutine 23 [select]:
github.com/ethereum/go-ethereum/miner.(*worker).update(0xc20c43c7e0)
	/Users/tron/Work/ethereum/go/src/github.com/ethereum/go-ethereum/miner/worker.go:158 +0x894
created by github.com/ethereum/go-ethereum/miner.newWorker
	/Users/tron/Work/ethereum/go/src/github.com/ethereum/go-ethereum/miner/worker.go:103 +0x2cb

goroutine 24 [chan receive]:
github.com/ethereum/go-ethereum/miner.(*worker).wait(0xc20c43c7e0)
	/Users/tron/Work/ethereum/go/src/github.com/ethereum/go-ethereum/miner/worker.go:191 +0x6f
created by github.com/ethereum/go-ethereum/miner.newWorker
	/Users/tron/Work/ethereum/go/src/github.com/ethereum/go-ethereum/miner/worker.go:104 +0x2e5

goroutine 25 [select, 10 minutes]:
github.com/ethereum/go-ethereum/p2p/nat.Map(0x4e86e78, 0xc2080fae70, 0xc20b20d440, 0x4819df0, 0x3, 0x7666, 0x7666, 0x48781b0, 0x12)
	/Users/tron/Work/ethereum/go/src/github.com/ethereum/go-ethereum/p2p/nat/nat.go:97 +0xa3f
created by github.com/ethereum/go-ethereum/p2p/discover.newUDP
	/Users/tron/Work/ethereum/go/src/github.com/ethereum/go-ethereum/p2p/discover/udp.go:172 +0x2ce

goroutine 86 [select, 10 minutes]:
github.com/ethereum/go-ethereum/p2p/nat.Map(0x4e86e78, 0xc2080fae70, 0xc20b20d380, 0x4818370, 0x3, 0x7666, 0x7666, 0x483ec30, 0xc)
	/Users/tron/Work/ethereum/go/src/github.com/ethereum/go-ethereum/p2p/nat/nat.go:97 +0xa3f
github.com/ethereum/go-ethereum/p2p.func·004()
	/Users/tron/Work/ethereum/go/src/github.com/ethereum/go-ethereum/p2p/server.go:246 +0x8f
created by github.com/ethereum/go-ethereum/p2p.(*Server).startListening
	/Users/tron/Work/ethereum/go/src/github.com/ethereum/go-ethereum/p2p/server.go:248 +0x309

goroutine 87 [select, 410 minutes]:
github.com/ethereum/go-ethereum/p2p.(*Server).dialLoop(0xc208162c60)
	/Users/tron/Work/ethereum/go/src/github.com/ethereum/go-ethereum/p2p/server.go:350 +0x686
created by github.com/ethereum/go-ethereum/p2p.(*Server).Start
	/Users/tron/Work/ethereum/go/src/github.com/ethereum/go-ethereum/p2p/server.go:223 +0xa3e

goroutine 88 [select]:
github.com/ethereum/go-ethereum/blockpool.func·001()
	/Users/tron/Work/ethereum/go/src/github.com/ethereum/go-ethereum/blockpool/blockpool.go:248 +0x66a
created by github.com/ethereum/go-ethereum/blockpool.(*BlockPool).Start
	/Users/tron/Work/ethereum/go/src/github.com/ethereum/go-ethereum/blockpool/blockpool.go:275 +0x7fd

goroutine 89 [select]:
github.com/ethereum/go-ethereum/whisper.(*Whisper).update(0xc208010230)
	/Users/tron/Work/ethereum/go/src/github.com/ethereum/go-ethereum/whisper/whisper.go:209 +0x104
created by github.com/ethereum/go-ethereum/whisper.(*Whisper).Start
	/Users/tron/Work/ethereum/go/src/github.com/ethereum/go-ethereum/whisper/whisper.go:76 +0x110

goroutine 90 [chan receive, 404 minutes]:
github.com/ethereum/go-ethereum/eth.(*Ethereum).txBroadcastLoop(0xc20818e300)
	/Users/tron/Work/ethereum/go/src/github.com/ethereum/go-ethereum/eth/backend.go:450 +0x99
created by github.com/ethereum/go-ethereum/eth.(*Ethereum).Start
	/Users/tron/Work/ethereum/go/src/github.com/ethereum/go-ethereum/eth/backend.go:391 +0x2bd

goroutine 91 [chan receive]:
github.com/ethereum/go-ethereum/eth.(*Ethereum).blockBroadcastLoop(0xc20818e300)
	/Users/tron/Work/ethereum/go/src/github.com/ethereum/go-ethereum/eth/backend.go:473 +0x9f
created by github.com/ethereum/go-ethereum/eth.(*Ethereum).Start
	/Users/tron/Work/ethereum/go/src/github.com/ethereum/go-ethereum/eth/backend.go:395 +0x3ff

goroutine 24810 [semacquire]:
sync.(*Mutex).Lock(0xc20a938aa0)
	/usr/local/Cellar/go/1.4.1/libexec/src/sync/mutex.go:66 +0xd3
sync.(*RWMutex).Lock(0xc20a938aa0)
	/usr/local/Cellar/go/1.4.1/libexec/src/sync/rwmutex.go:82 +0x33
github.com/ethereum/ethash.(*Ethash).UpdateDAG(0xc20adbc910)
	/Users/tron/Work/ethereum/go-ethereum/Godeps/_workspace/src/github.com/ethereum/ethash/ethash.go:174 +0x213
github.com/ethereum/ethash.(*Ethash).Search(0xc20adbc910, 0x739b190, 0xc20dde7d60, 0xc32f770060, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, ...)
	/Users/tron/Work/ethereum/go-ethereum/Godeps/_workspace/src/github.com/ethereum/ethash/ethash.go:310 +0x8a
github.com/ethereum/go-ethereum/miner.(*CpuMiner).mine(0xc20bb12d80, 0xc20dde7d60)
	/Users/tron/Work/ethereum/go/src/github.com/ethereum/go-ethereum/miner/agent.go:88 +0x23c
created by github.com/ethereum/go-ethereum/miner.(*CpuMiner).update
	/Users/tron/Work/ethereum/go/src/github.com/ethereum/go-ethereum/miner/agent.go:59 +0x133

goroutine 24825 [semacquire]:
sync.(*Mutex).Lock(0xc20a938aa0)
	/usr/local/Cellar/go/1.4.1/libexec/src/sync/mutex.go:66 +0xd3
sync.(*RWMutex).Lock(0xc20a938aa0)
	/usr/local/Cellar/go/1.4.1/libexec/src/sync/rwmutex.go:82 +0x33
github.com/ethereum/ethash.(*Ethash).UpdateDAG(0xc20adbc910)
	/Users/tron/Work/ethereum/go-ethereum/Godeps/_workspace/src/github.com/ethereum/ethash/ethash.go:174 +0x213
github.com/ethereum/ethash.(*Ethash).Search(0xc20adbc910, 0x739b190, 0xc20dde7c20, 0xc23b72cba0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, ...)
	/Users/tron/Work/ethereum/go-ethereum/Godeps/_workspace/src/github.com/ethereum/ethash/ethash.go:310 +0x8a
github.com/ethereum/go-ethereum/miner.(*CpuMiner).mine(0xc20bb12c40, 0xc20dde7c20)
	/Users/tron/Work/ethereum/go/src/github.com/ethereum/go-ethereum/miner/agent.go:88 +0x23c
created by github.com/ethereum/go-ethereum/miner.(*CpuMiner).update
	/Users/tron/Work/ethereum/go/src/github.com/ethereum/go-ethereum/miner/agent.go:59 +0x133

goroutine 93 [select]:
github.com/ethereum/go-ethereum/event/filter.(*FilterManager).filterLoop(0xc20bf81a80)
	/Users/tron/Work/ethereum/go/src/github.com/ethereum/go-ethereum/event/filter/eth_filter.go:74 +0x7e1
created by github.com/ethereum/go-ethereum/event/filter.(*FilterManager).Start
	/Users/tron/Work/ethereum/go/src/github.com/ethereum/go-ethereum/event/filter/eth_filter.go:31 +0x32

goroutine 76 [select]:
github.com/ethereum/go-ethereum/xeth.(*XEth).start(0xc20b632b00)
	/Users/tron/Work/ethereum/go/src/github.com/ethereum/go-ethereum/xeth/xeth.go:88 +0x3dd
created by github.com/ethereum/go-ethereum/xeth.New
	/Users/tron/Work/ethereum/go/src/github.com/ethereum/go-ethereum/xeth/xeth.go:78 +0x511

goroutine 78 [IO wait]:
net.(*pollDesc).Wait(0xc20adfe370, 0x72, 0x0, 0x0)
	/usr/local/Cellar/go/1.4.1/libexec/src/net/fd_poll_runtime.go:84 +0x47
net.(*pollDesc).WaitRead(0xc20adfe370, 0x0, 0x0)
	/usr/local/Cellar/go/1.4.1/libexec/src/net/fd_poll_runtime.go:89 +0x43
net.(*netFD).accept(0xc20adfe310, 0x0, 0x4e861c8, 0xc333b71ae8)
	/usr/local/Cellar/go/1.4.1/libexec/src/net/fd_unix.go:419 +0x40b
net.(*TCPListener).AcceptTCP(0xc20add2010, 0xc208016678, 0x0, 0x0)
	/usr/local/Cellar/go/1.4.1/libexec/src/net/tcpsock_posix.go:234 +0x4e
net.(*TCPListener).Accept(0xc20add2010, 0x0, 0x0, 0x0, 0x0)
	/usr/local/Cellar/go/1.4.1/libexec/src/net/tcpsock_posix.go:244 +0x4c
net/http.(*Server).Serve(0xc20c2d4480, 0x4e881a0, 0xc20add2010, 0x0, 0x0)
	/usr/local/Cellar/go/1.4.1/libexec/src/net/http/server.go:1728 +0x92
net/http.Serve(0x4e881a0, 0xc20add2010, 0x4e86598, 0xc20be86b80, 0x0, 0x0)
	/usr/local/Cellar/go/1.4.1/libexec/src/net/http/server.go:1606 +0xa1
created by github.com/ethereum/go-ethereum/rpc.Start
	/Users/tron/Work/ethereum/go/src/github.com/ethereum/go-ethereum/rpc/http.go:43 +0x5af

goroutine 23911 [semacquire, 12 minutes]:
sync.(*Mutex).Lock(0xc20a938aa0)
	/usr/local/Cellar/go/1.4.1/libexec/src/sync/mutex.go:66 +0xd3
sync.(*RWMutex).Lock(0xc20a938aa0)
	/usr/local/Cellar/go/1.4.1/libexec/src/sync/rwmutex.go:82 +0x33
github.com/ethereum/ethash.(*Ethash).UpdateDAG(0xc20adbc910)
	/Users/tron/Work/ethereum/go-ethereum/Godeps/_workspace/src/github.com/ethereum/ethash/ethash.go:174 +0x213
github.com/ethereum/ethash.(*Ethash).Search(0xc20adbc910, 0x739b190, 0xc211065220, 0xc323758660, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, ...)
	/Users/tron/Work/ethereum/go-ethereum/Godeps/_workspace/src/github.com/ethereum/ethash/ethash.go:310 +0x8a
github.com/ethereum/go-ethereum/miner.(*CpuMiner).mine(0xc20bb12dc0, 0xc211065220)
	/Users/tron/Work/ethereum/go/src/github.com/ethereum/go-ethereum/miner/agent.go:88 +0x23c
created by github.com/ethereum/go-ethereum/miner.(*CpuMiner).update
	/Users/tron/Work/ethereum/go/src/github.com/ethereum/go-ethereum/miner/agent.go:59 +0x133

goroutine 128 [select]:
github.com/ethereum/go-ethereum/miner.(*RemoteAgent).run(0xc20c29d080)
	/Users/tron/Work/ethereum/go/src/github.com/ethereum/go-ethereum/miner/remote_agent.go:48 +0x149
created by github.com/ethereum/go-ethereum/miner.(*RemoteAgent).Start
	/Users/tron/Work/ethereum/go/src/github.com/ethereum/go-ethereum/miner/remote_agent.go:35 +0xac

goroutine 126 [select]:
github.com/ethereum/go-ethereum/miner.(*CpuMiner).update(0xc20bb12e80)
	/Users/tron/Work/ethereum/go/src/github.com/ethereum/go-ethereum/miner/agent.go:53 +0x1e1
created by github.com/ethereum/go-ethereum/miner.(*CpuMiner).Start
	/Users/tron/Work/ethereum/go/src/github.com/ethereum/go-ethereum/miner/agent.go:47 +0xed

goroutine 120 [select]:
github.com/ethereum/go-ethereum/miner.(*CpuMiner).update(0xc20bb12c40)
	/Users/tron/Work/ethereum/go/src/github.com/ethereum/go-ethereum/miner/agent.go:53 +0x1e1
created by github.com/ethereum/go-ethereum/miner.(*CpuMiner).Start
	/Users/tron/Work/ethereum/go/src/github.com/ethereum/go-ethereum/miner/agent.go:47 +0xed

goroutine 127 [select]:
github.com/ethereum/go-ethereum/miner.(*RemoteAgent).run(0xc20bd14570)
	/Users/tron/Work/ethereum/go/src/github.com/ethereum/go-ethereum/miner/remote_agent.go:48 +0x149
created by github.com/ethereum/go-ethereum/miner.(*RemoteAgent).Start
	/Users/tron/Work/ethereum/go/src/github.com/ethereum/go-ethereum/miner/remote_agent.go:35 +0xac

goroutine 339 [syscall, 444 minutes]:
syscall.Syscall(0x3, 0x0, 0xc2080dd000, 0x1000, 0x441a29e, 0x0, 0x441a2ff)
	/usr/local/Cellar/go/1.4.1/libexec/src/syscall/asm_darwin_amd64.s:20 +0x5
syscall.read(0x0, 0xc2080dd000, 0x1000, 0x1000, 0x5b8534e6459312a3, 0x0, 0x0)
	/usr/local/Cellar/go/1.4.1/libexec/src/syscall/zsyscall_darwin_amd64.go:970 +0x6e
syscall.Read(0x0, 0xc2080dd000, 0x1000, 0x1000, 0x441fd10, 0x0, 0x0)
	/usr/local/Cellar/go/1.4.1/libexec/src/syscall/syscall_unix.go:136 +0x58
os.(*File).read(0xc20803a000, 0xc2080dd000, 0x1000, 0x1000, 0xabbac0822b06b3d2, 0x0, 0x0)
	/usr/local/Cellar/go/1.4.1/libexec/src/os/file_unix.go:191 +0x86
os.(*File).Read(0xc20803a000, 0xc2080dd000, 0x1000, 0x1000, 0xc20c350450, 0x0, 0x0)
	/usr/local/Cellar/go/1.4.1/libexec/src/os/file.go:95 +0x91
bufio.(*Reader).fill(0xc208d7f320)
	/usr/local/Cellar/go/1.4.1/libexec/src/bufio/bufio.go:97 +0x1ce
bufio.(*Reader).ReadRune(0xc208d7f320, 0x55cc1b171fe85625, 0xc20c350450, 0x0, 0x0)
	/usr/local/Cellar/go/1.4.1/libexec/src/bufio/bufio.go:227 +0xd7
github.com/peterh/liner.func·002()
	/Users/tron/Work/ethereum/go-ethereum/Godeps/_workspace/src/github.com/peterh/liner/input.go:95 +0x5d
created by github.com/peterh/liner.(*State).restartPrompt
	/Users/tron/Work/ethereum/go-ethereum/Godeps/_workspace/src/github.com/peterh/liner/input.go:103 +0xff

goroutine 129 [select]:
github.com/ethereum/go-ethereum/xeth.(*XEth).start(0xc20818a800)
	/Users/tron/Work/ethereum/go/src/github.com/ethereum/go-ethereum/xeth/xeth.go:88 +0x3dd
created by github.com/ethereum/go-ethereum/xeth.New
	/Users/tron/Work/ethereum/go/src/github.com/ethereum/go-ethereum/xeth/xeth.go:78 +0x511

goroutine 123 [select]:
github.com/ethereum/go-ethereum/miner.(*CpuMiner).update(0xc20bb12dc0)
	/Users/tron/Work/ethereum/go/src/github.com/ethereum/go-ethereum/miner/agent.go:53 +0x1e1
created by github.com/ethereum/go-ethereum/miner.(*CpuMiner).Start
	/Users/tron/Work/ethereum/go/src/github.com/ethereum/go-ethereum/miner/agent.go:47 +0xed

goroutine 125 [select]:
github.com/ethereum/go-ethereum/miner.(*CpuMiner).update(0xc20bb12e40)
	/Users/tron/Work/ethereum/go/src/github.com/ethereum/go-ethereum/miner/agent.go:53 +0x1e1
created by github.com/ethereum/go-ethereum/miner.(*CpuMiner).Start
	/Users/tron/Work/ethereum/go/src/github.com/ethereum/go-ethereum/miner/agent.go:47 +0xed

goroutine 124 [select]:
github.com/ethereum/go-ethereum/miner.(*CpuMiner).update(0xc20bb12e00)
	/Users/tron/Work/ethereum/go/src/github.com/ethereum/go-ethereum/miner/agent.go:53 +0x1e1
created by github.com/ethereum/go-ethereum/miner.(*CpuMiner).Start
	/Users/tron/Work/ethereum/go/src/github.com/ethereum/go-ethereum/miner/agent.go:47 +0xed

goroutine 122 [select]:
github.com/ethereum/go-ethereum/miner.(*CpuMiner).update(0xc20bb12d80)
	/Users/tron/Work/ethereum/go/src/github.com/ethereum/go-ethereum/miner/agent.go:53 +0x1e1
created by github.com/ethereum/go-ethereum/miner.(*CpuMiner).Start
	/Users/tron/Work/ethereum/go/src/github.com/ethereum/go-ethereum/miner/agent.go:47 +0xed

goroutine 119 [select]:
github.com/ethereum/go-ethereum/miner.(*CpuMiner).update(0xc20bb12c00)
	/Users/tron/Work/ethereum/go/src/github.com/ethereum/go-ethereum/miner/agent.go:53 +0x1e1
created by github.com/ethereum/go-ethereum/miner.(*CpuMiner).Start
	/Users/tron/Work/ethereum/go/src/github.com/ethereum/go-ethereum/miner/agent.go:47 +0xed

goroutine 121 [select]:
github.com/ethereum/go-ethereum/miner.(*CpuMiner).update(0xc20bb12c80)
	/Users/tron/Work/ethereum/go/src/github.com/ethereum/go-ethereum/miner/agent.go:53 +0x1e1
created by github.com/ethereum/go-ethereum/miner.(*CpuMiner).Start
	/Users/tron/Work/ethereum/go/src/github.com/ethereum/go-ethereum/miner/agent.go:47 +0xed

goroutine 286 [select]:
github.com/ethereum/go-ethereum/event/filter.(*FilterManager).filterLoop(0xc20c31cd80)
	/Users/tron/Work/ethereum/go/src/github.com/ethereum/go-ethereum/event/filter/eth_filter.go:74 +0x7e1
created by github.com/ethereum/go-ethereum/event/filter.(*FilterManager).Start
	/Users/tron/Work/ethereum/go/src/github.com/ethereum/go-ethereum/event/filter/eth_filter.go:31 +0x32

goroutine 24824 [semacquire]:
sync.(*Mutex).Lock(0xc20a938aa0)
	/usr/local/Cellar/go/1.4.1/libexec/src/sync/mutex.go:66 +0xd3
sync.(*RWMutex).Lock(0xc20a938aa0)
	/usr/local/Cellar/go/1.4.1/libexec/src/sync/rwmutex.go:82 +0x33
github.com/ethereum/ethash.(*Ethash).UpdateDAG(0xc20adbc910)
	/Users/tron/Work/ethereum/go-ethereum/Godeps/_workspace/src/github.com/ethereum/ethash/ethash.go:174 +0x213
github.com/ethereum/ethash.(*Ethash).Search(0xc20adbc910, 0x739b190, 0xc20dde7b80, 0xc23b72cb40, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, ...)
	/Users/tron/Work/ethereum/go-ethereum/Godeps/_workspace/src/github.com/ethereum/ethash/ethash.go:310 +0x8a
github.com/ethereum/go-ethereum/miner.(*CpuMiner).mine(0xc20bb12c00, 0xc20dde7b80)
	/Users/tron/Work/ethereum/go/src/github.com/ethereum/go-ethereum/miner/agent.go:88 +0x23c
created by github.com/ethereum/go-ethereum/miner.(*CpuMiner).update
	/Users/tron/Work/ethereum/go/src/github.com/ethereum/go-ethereum/miner/agent.go:59 +0x133

goroutine 24811 [semacquire]:
sync.(*Mutex).Lock(0xc20a938aa0)
	/usr/local/Cellar/go/1.4.1/libexec/src/sync/mutex.go:66 +0xd3
sync.(*RWMutex).Lock(0xc20a938aa0)
	/usr/local/Cellar/go/1.4.1/libexec/src/sync/rwmutex.go:82 +0x33
github.com/ethereum/ethash.(*Ethash).UpdateDAG(0xc20adbc910)
	/Users/tron/Work/ethereum/go-ethereum/Godeps/_workspace/src/github.com/ethereum/ethash/ethash.go:174 +0x213
github.com/ethereum/ethash.(*Ethash).Search(0xc20adbc910, 0x739b190, 0xc20dde7e00, 0xc33a620000, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, ...)
	/Users/tron/Work/ethereum/go-ethereum/Godeps/_workspace/src/github.com/ethereum/ethash/ethash.go:310 +0x8a
github.com/ethereum/go-ethereum/miner.(*CpuMiner).mine(0xc20bb12dc0, 0xc20dde7e00)
	/Users/tron/Work/ethereum/go/src/github.com/ethereum/go-ethereum/miner/agent.go:88 +0x23c
created by github.com/ethereum/go-ethereum/miner.(*CpuMiner).update
	/Users/tron/Work/ethereum/go/src/github.com/ethereum/go-ethereum/miner/agent.go:59 +0x133

goroutine 23913 [semacquire, 12 minutes]:
sync.(*Mutex).Lock(0xc20a938aa0)
	/usr/local/Cellar/go/1.4.1/libexec/src/sync/mutex.go:66 +0xd3
sync.(*RWMutex).Lock(0xc20a938aa0)
	/usr/local/Cellar/go/1.4.1/libexec/src/sync/rwmutex.go:82 +0x33
github.com/ethereum/ethash.(*Ethash).UpdateDAG(0xc20adbc910)
	/Users/tron/Work/ethereum/go-ethereum/Godeps/_workspace/src/github.com/ethereum/ethash/ethash.go:174 +0x213
github.com/ethereum/ethash.(*Ethash).Search(0xc20adbc910, 0x739b190, 0xc211065360, 0xc323758600, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, ...)
	/Users/tron/Work/ethereum/go-ethereum/Godeps/_workspace/src/github.com/ethereum/ethash/ethash.go:310 +0x8a
github.com/ethereum/go-ethereum/miner.(*CpuMiner).mine(0xc20bb12e40, 0xc211065360)
	/Users/tron/Work/ethereum/go/src/github.com/ethereum/go-ethereum/miner/agent.go:88 +0x23c
created by github.com/ethereum/go-ethereum/miner.(*CpuMiner).update
	/Users/tron/Work/ethereum/go/src/github.com/ethereum/go-ethereum/miner/agent.go:59 +0x133

goroutine 24808 [semacquire]:
sync.(*Mutex).Lock(0xc20a938aa0)
	/usr/local/Cellar/go/1.4.1/libexec/src/sync/mutex.go:66 +0xd3
sync.(*RWMutex).Lock(0xc20a938aa0)
	/usr/local/Cellar/go/1.4.1/libexec/src/sync/rwmutex.go:82 +0x33
github.com/ethereum/ethash.(*Ethash).UpdateDAG(0xc20adbc910)
	/Users/tron/Work/ethereum/go-ethereum/Godeps/_workspace/src/github.com/ethereum/ethash/ethash.go:174 +0x213
github.com/ethereum/ethash.(*Ethash).Search(0xc20adbc910, 0x739b190, 0xc20dde7f40, 0xc22f177920, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, ...)
	/Users/tron/Work/ethereum/go-ethereum/Godeps/_workspace/src/github.com/ethereum/ethash/ethash.go:310 +0x8a
github.com/ethereum/go-ethereum/miner.(*CpuMiner).mine(0xc20bb12e40, 0xc20dde7f40)
	/Users/tron/Work/ethereum/go/src/github.com/ethereum/go-ethereum/miner/agent.go:88 +0x23c
created by github.com/ethereum/go-ethereum/miner.(*CpuMiner).update
	/Users/tron/Work/ethereum/go/src/github.com/ethereum/go-ethereum/miner/agent.go:59 +0x133

goroutine 24809 [semacquire]:
sync.(*Mutex).Lock(0xc20a938aa0)
	/usr/local/Cellar/go/1.4.1/libexec/src/sync/mutex.go:66 +0xd3
sync.(*RWMutex).Lock(0xc20a938aa0)
	/usr/local/Cellar/go/1.4.1/libexec/src/sync/rwmutex.go:82 +0x33
github.com/ethereum/ethash.(*Ethash).UpdateDAG(0xc20adbc910)
	/Users/tron/Work/ethereum/go-ethereum/Godeps/_workspace/src/github.com/ethereum/ethash/ethash.go:174 +0x213
github.com/ethereum/ethash.(*Ethash).Search(0xc20adbc910, 0x739b190, 0xc20dde7cc0, 0xc33a6200c0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, ...)
	/Users/tron/Work/ethereum/go-ethereum/Godeps/_workspace/src/github.com/ethereum/ethash/ethash.go:310 +0x8a
github.com/ethereum/go-ethereum/miner.(*CpuMiner).mine(0xc20bb12c80, 0xc20dde7cc0)
	/Users/tron/Work/ethereum/go/src/github.com/ethereum/go-ethereum/miner/agent.go:88 +0x23c
created by github.com/ethereum/go-ethereum/miner.(*CpuMiner).update
	/Users/tron/Work/ethereum/go/src/github.com/ethereum/go-ethereum/miner/agent.go:59 +0x133

goroutine 23926 [semacquire]:
sync.(*RWMutex).Lock(0xc20a938aa0)
	/usr/local/Cellar/go/1.4.1/libexec/src/sync/rwmutex.go:87 +0xa4
github.com/ethereum/ethash.(*Ethash).UpdateDAG(0xc20adbc910)
	/Users/tron/Work/ethereum/go-ethereum/Godeps/_workspace/src/github.com/ethereum/ethash/ethash.go:174 +0x213
github.com/ethereum/ethash.(*Ethash).Search(0xc20adbc910, 0x739b190, 0xc2110650e0, 0xc323758540, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, ...)
	/Users/tron/Work/ethereum/go-ethereum/Godeps/_workspace/src/github.com/ethereum/ethash/ethash.go:310 +0x8a
github.com/ethereum/go-ethereum/miner.(*CpuMiner).mine(0xc20bb12c80, 0xc2110650e0)
	/Users/tron/Work/ethereum/go/src/github.com/ethereum/go-ethereum/miner/agent.go:88 +0x23c
created by github.com/ethereum/go-ethereum/miner.(*CpuMiner).update
	/Users/tron/Work/ethereum/go/src/github.com/ethereum/go-ethereum/miner/agent.go:59 +0x133

goroutine 24812 [semacquire]:
sync.(*Mutex).Lock(0xc20a938aa0)
	/usr/local/Cellar/go/1.4.1/libexec/src/sync/mutex.go:66 +0xd3
sync.(*RWMutex).Lock(0xc20a938aa0)
	/usr/local/Cellar/go/1.4.1/libexec/src/sync/rwmutex.go:82 +0x33
github.com/ethereum/ethash.(*Ethash).UpdateDAG(0xc20adbc910)
	/Users/tron/Work/ethereum/go-ethereum/Godeps/_workspace/src/github.com/ethereum/ethash/ethash.go:174 +0x213
github.com/ethereum/ethash.(*Ethash).Search(0xc20adbc910, 0x739b190, 0xc20dde7ea0, 0xc33a620060, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, ...)
	/Users/tron/Work/ethereum/go-ethereum/Godeps/_workspace/src/github.com/ethereum/ethash/ethash.go:310 +0x8a
github.com/ethereum/go-ethereum/miner.(*CpuMiner).mine(0xc20bb12e00, 0xc20dde7ea0)
	/Users/tron/Work/ethereum/go/src/github.com/ethereum/go-ethereum/miner/agent.go:88 +0x23c
created by github.com/ethereum/go-ethereum/miner.(*CpuMiner).update
	/Users/tron/Work/ethereum/go/src/github.com/ethereum/go-ethereum/miner/agent.go:59 +0x133

goroutine 24826 [runnable, locked to thread]:
github.com/ethereum/ethash._Cfunc_ethash_full(0xc33391ec40, 0xc29cb3a008, 0xc20c0563f0, 0xc23c57cd98, 0x5bd7dfcaf150ae0)
	/Users/tron/Work/ethereum/go-ethereum/Godeps/_workspace/src/github.com/ethereum/ethash/:40 +0x45
github.com/ethereum/ethash.(*Ethash).Search(0xc20adbc910, 0x739b190, 0xc334590000, 0xc23b72cc00, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, ...)
	/Users/tron/Work/ethereum/go-ethereum/Godeps/_workspace/src/github.com/ethereum/ethash/ethash.go:340 +0x45c
github.com/ethereum/go-ethereum/miner.(*CpuMiner).mine(0xc20bb12e80, 0xc334590000)
	/Users/tron/Work/ethereum/go/src/github.com/ethereum/go-ethereum/miner/agent.go:88 +0x23c
created by github.com/ethereum/go-ethereum/miner.(*CpuMiner).update
	/Users/tron/Work/ethereum/go/src/github.com/ethereum/go-ethereum/miner/agent.go:59 +0x133

goroutine 23928 [semacquire, 12 minutes]:
sync.(*Mutex).Lock(0xc20a938aa0)
	/usr/local/Cellar/go/1.4.1/libexec/src/sync/mutex.go:66 +0xd3
sync.(*RWMutex).Lock(0xc20a938aa0)
	/usr/local/Cellar/go/1.4.1/libexec/src/sync/rwmutex.go:82 +0x33
github.com/ethereum/ethash.(*Ethash).UpdateDAG(0xc20adbc910)
	/Users/tron/Work/ethereum/go-ethereum/Godeps/_workspace/src/github.com/ethereum/ethash/ethash.go:174 +0x213
github.com/ethereum/ethash.(*Ethash).Search(0xc20adbc910, 0x739b190, 0xc211065040, 0xc3237585a0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, ...)
	/Users/tron/Work/ethereum/go-ethereum/Godeps/_workspace/src/github.com/ethereum/ethash/ethash.go:310 +0x8a
github.com/ethereum/go-ethereum/miner.(*CpuMiner).mine(0xc20bb12c40, 0xc211065040)
	/Users/tron/Work/ethereum/go/src/github.com/ethereum/go-ethereum/miner/agent.go:88 +0x23c
created by github.com/ethereum/go-ethereum/miner.(*CpuMiner).update
	/Users/tron/Work/ethereum/go/src/github.com/ethereum/go-ethereum/miner/agent.go:59 +0x133

goroutine 23927 [semacquire]:
sync.(*Mutex).Lock(0xc20a938aa0)
	/usr/local/Cellar/go/1.4.1/libexec/src/sync/mutex.go:66 +0xd3
sync.(*RWMutex).Lock(0xc20a938aa0)
	/usr/local/Cellar/go/1.4.1/libexec/src/sync/rwmutex.go:82 +0x33
github.com/ethereum/ethash.(*Ethash).UpdateDAG(0xc20adbc910)
	/Users/tron/Work/ethereum/go-ethereum/Godeps/_workspace/src/github.com/ethereum/ethash/ethash.go:174 +0x213
github.com/ethereum/ethash.(*Ethash).Search(0xc20adbc910, 0x739b190, 0xc211064fa0, 0xc3237584e0, 0x0, 0x0, 0x0, 0x0, 0x0, 0x0, ...)
	/Users/tron/Work/ethereum/go-ethereum/Godeps/_workspace/src/github.com/ethereum/ethash/ethash.go:310 +0x8a
github.com/ethereum/go-ethereum/miner.(*CpuMiner).mine(0xc20bb12c00, 0xc211064fa0)
	/Users/tron/Work/ethereum/go/src/github.com/ethereum/go-ethereum/miner/agent.go:88 +0x23c
created by github.com/ethereum/go-ethereum/miner.(*CpuMiner).update
	/Users/tron/Work/ethereum/go/src/github.com/ethereum/go-ethereum/miner/agent.go:59 +0x133