goroutine 921 [running]:
runtime/pprof.writeGoroutineStacks(0x5212c8, 0x10bd4000, 0x0, 0x10981940)
	/usr/local/go/src/runtime/pprof/pprof.go:603 +0x58
runtime/pprof.writeGoroutine(0x5212c8, 0x10bd4000, 0x2, 0x20, 0x13590)
	/usr/local/go/src/runtime/pprof/pprof.go:592 +0x30
runtime/pprof.(*Profile).WriteTo(0x548e60, 0x5212c8, 0x10bd4000, 0x2, 0x10bd4000, 0x54fc70)
	/usr/local/go/src/runtime/pprof/pprof.go:302 +0x2b0
net/http/pprof.handler.ServeHTTP(0x108fd391, 0x9, 0x5236b0, 0x10bd4000, 0x10860600)
	/usr/local/go/src/net/http/pprof/pprof.go:209 +0x168
net/http/pprof.Index(0x5236b0, 0x10bd4000, 0x10860600)
	/usr/local/go/src/net/http/pprof/pprof.go:221 +0x17c
net/http.HandlerFunc.ServeHTTP(0x3affbc, 0x5236b0, 0x10bd4000, 0x10860600)
	/usr/local/go/src/net/http/server.go:1942 +0x34
net/http.(*ServeMux).ServeHTTP(0x54fc70, 0x5236b0, 0x10bd4000, 0x10860600)
	/usr/local/go/src/net/http/server.go:2238 +0x108
net/http.serverHandler.ServeHTTP(0x1095e000, 0x5236b0, 0x10bd4000, 0x10860600)
	/usr/local/go/src/net/http/server.go:2568 +0x7c
net/http.(*conn).serve(0x10ad0ba0, 0x523c88, 0x109817e0)
	/usr/local/go/src/net/http/server.go:1825 +0x528
created by net/http.(*Server).Serve
	/usr/local/go/src/net/http/server.go:2668 +0x234

goroutine 1 [chan receive]:
main.main()
	/home/pi/go/src/sonda/sonda.go:92 +0x2d8

goroutine 17 [syscall, 351 minutes, locked to thread]:
runtime.goexit()
	/usr/local/go/src/runtime/asm_arm.s:1017 +0x4

goroutine 35 [chan receive]:
github.com/golang/glog.(*loggingT).flushDaemon(0x54ff38)
	/home/pi/go/src/github.com/golang/glog/glog.go:882 +0x64
created by github.com/golang/glog.init.1
	/home/pi/go/src/github.com/golang/glog/glog.go:410 +0x1a0

goroutine 47 [IO wait]:
net.runtime_pollWait(0x75473f40, 0x72, 0x0)
	/usr/local/go/src/runtime/netpoll.go:164 +0x44
net.(*pollDesc).wait(0x1094e07c, 0x72, 0x520230, 0x10c612c0)
	/usr/local/go/src/net/fd_poll_runtime.go:75 +0x28
net.(*pollDesc).waitRead(0x1094e07c, 0xffffffff, 0x0)
	/usr/local/go/src/net/fd_poll_runtime.go:80 +0x24
net.(*netFD).accept(0x1094e040, 0x0, 0x5213d0, 0x10c612c0)
	/usr/local/go/src/net/fd_unix.go:430 +0x15c
net.(*TCPListener).accept(0x10942040, 0x26d8c0, 0x10ad0be0, 0x344318)
	/usr/local/go/src/net/tcpsock_posix.go:136 +0x20
net.(*TCPListener).AcceptTCP(0x10942040, 0x6652c, 0x1087cebc, 0x1087cec0)
	/usr/local/go/src/net/tcpsock.go:215 +0x3c
net/http.tcpKeepAliveListener.Accept(0x10942040, 0x3afee0, 0x10ad0ba0, 0x523d00, 0x1093e120)
	/usr/local/go/src/net/http/server.go:3044 +0x1c
net/http.(*Server).Serve(0x1095e000, 0x523790, 0x10942040, 0x0, 0x0)
	/usr/local/go/src/net/http/server.go:2643 +0x1ac
net/http.(*Server).ListenAndServe(0x1095e000, 0xa, 0x1087cf68)
	/usr/local/go/src/net/http/server.go:2585 +0x90
sonda/src.(*WebServer).Init(0x1086dbe0)
	/home/pi/go/src/sonda/src/ws.go:37 +0x294
created by main.main
	/home/pi/go/src/sonda/sonda.go:66 +0xd8

goroutine 41 [select]:
github.com/eclipse/paho%2emqtt%2egolang.keepalive(0x1092e000)
	/home/pi/go/src/github.com/eclipse/paho.mqtt.golang/ping.go:41 +0xb34
created by github.com/eclipse/paho%2emqtt%2egolang.(*client).Connect.func1
	/home/pi/go/src/github.com/eclipse/paho.mqtt.golang/client.go:340 +0x110c

goroutine 42 [select, 351 minutes]:
github.com/eclipse/paho%2emqtt%2egolang.(*router).matchAndDispatch.func1(0x10866980, 0x10870300, 0x1092e000, 0x2fa001)
	/home/pi/go/src/github.com/eclipse/paho.mqtt.golang/router.go:139 +0x5b8
created by github.com/eclipse/paho%2emqtt%2egolang.(*router).matchAndDispatch
	/home/pi/go/src/github.com/eclipse/paho.mqtt.golang/router.go:180 +0x44

goroutine 43 [select, 351 minutes]:
github.com/eclipse/paho%2emqtt%2egolang.errorWatch(0x1092e000)
	/home/pi/go/src/github.com/eclipse/paho.mqtt.golang/net.go:321 +0x340
created by github.com/eclipse/paho%2emqtt%2egolang.(*client).Connect.func1
	/home/pi/go/src/github.com/eclipse/paho.mqtt.golang/client.go:353 +0xe00

goroutine 44 [select]:
github.com/eclipse/paho%2emqtt%2egolang.alllogic(0x1092e000)
	/home/pi/go/src/github.com/eclipse/paho.mqtt.golang/net.go:215 +0x1f58
created by github.com/eclipse/paho%2emqtt%2egolang.(*client).Connect.func1
	/home/pi/go/src/github.com/eclipse/paho.mqtt.golang/client.go:354 +0xe1c

goroutine 45 [select]:
github.com/eclipse/paho%2emqtt%2egolang.outgoing(0x1092e000)
	/home/pi/go/src/github.com/eclipse/paho.mqtt.golang/net.go:152 +0xee4
created by github.com/eclipse/paho%2emqtt%2egolang.(*client).Connect.func1
	/home/pi/go/src/github.com/eclipse/paho.mqtt.golang/client.go:355 +0xe38

goroutine 46 [IO wait]:
net.runtime_pollWait(0x75473fb8, 0x72, 0x10c61274)
	/usr/local/go/src/runtime/netpoll.go:164 +0x44
net.(*pollDesc).wait(0x1091effc, 0x72, 0x521b98, 0x520230)
	/usr/local/go/src/net/fd_poll_runtime.go:75 +0x28
net.(*pollDesc).waitRead(0x1091effc, 0x10c61274, 0x1)
	/usr/local/go/src/net/fd_poll_runtime.go:80 +0x24
net.(*netFD).Read(0x1091efc0, 0x10c61274, 0x1, 0x1, 0x0, 0x521b98, 0x520230)
	/usr/local/go/src/net/fd_unix.go:250 +0x148
net.(*conn).Read(0x10868808, 0x10c61274, 0x1, 0x1, 0x0, 0x0, 0x0)
	/usr/local/go/src/net/net.go:181 +0x58
io.ReadAtLeast(0x75474030, 0x10868808, 0x10c61274, 0x1, 0x1, 0x1, 0x1f6a4, 0x5520a0, 0x75474030)
	/usr/local/go/src/io/io.go:307 +0x8c
io.ReadFull(0x75474030, 0x10868808, 0x10c61274, 0x1, 0x1, 0x1, 0x14a04, 0x12ff0)
	/usr/local/go/src/io/io.go:325 +0x40
github.com/eclipse/paho.mqtt.golang/packets.ReadPacket(0x75474030, 0x10868808, 0x10868808, 0x75474030, 0x10868808, 0x0)
	/home/pi/go/src/github.com/eclipse/paho.mqtt.golang/packets/packets.go:105 +0x68
github.com/eclipse/paho%2emqtt%2egolang.incoming(0x1092e000)
	/home/pi/go/src/github.com/eclipse/paho.mqtt.golang/net.go:113 +0x14c
created by github.com/eclipse/paho%2emqtt%2egolang.(*client).Connect.func1
	/home/pi/go/src/github.com/eclipse/paho.mqtt.golang/client.go:356 +0xe54

goroutine 50 [chan receive]:
sonda/src.(*WebServer).initWebSocket(0x1086dbe0)
	/home/pi/go/src/sonda/src/ws.go:42 +0x44
created by sonda/src.(*WebServer).Init
	/home/pi/go/src/sonda/src/ws.go:29 +0x1c4

goroutine 51 [chan receive]:
main.printResultsThread.func1(0x109440f0, 0x1086dbe0)
	/home/pi/go/src/sonda/sonda.go:144 +0x38
created by main.printResultsThread
	/home/pi/go/src/sonda/sonda.go:148 +0x48

goroutine 67 [runnable]:
syscall.Syscall6(0xfc, 0x8, 0x1094bbd4, 0x40, 0xffffffff, 0x0, 0x0, 0x2, 0x1094bbd4, 0x0)
	/usr/local/go/src/syscall/asm_linux_arm.s:48 +0x8
syscall.EpollWait(0x8, 0x1094bbd4, 0x40, 0x40, 0xffffffff, 0x2, 0x0, 0x0)
	/usr/local/go/src/syscall/zsyscall_linux_arm.go:365 +0x50
github.com/kidoman/embd/host/generic.initEpollListener.func1(0x1097e120)
	/home/pi/go/src/github.com/kidoman/embd/host/generic/interrupt.go:60 +0x60
created by github.com/kidoman/embd/host/generic.initEpollListener
	/home/pi/go/src/github.com/kidoman/embd/host/generic/interrupt.go:72 +0xdc

goroutine 52 [chan receive]:
main.printResultsThread.func2(0x10944120, 0x1086dbe0)
	/home/pi/go/src/sonda/sonda.go:154 +0x38
created by main.printResultsThread
	/home/pi/go/src/sonda/sonda.go:158 +0x80

goroutine 922 [IO wait]:
net.runtime_pollWait(0x75473ec8, 0x72, 0x108fd35d)
	/usr/local/go/src/runtime/netpoll.go:164 +0x44
net.(*pollDesc).wait(0x10863dfc, 0x72, 0x521b98, 0x520230)
	/usr/local/go/src/net/fd_poll_runtime.go:75 +0x28
net.(*pollDesc).waitRead(0x10863dfc, 0x108fd35d, 0x1)
	/usr/local/go/src/net/fd_poll_runtime.go:80 +0x24
net.(*netFD).Read(0x10863dc0, 0x108fd35d, 0x1, 0x1, 0x0, 0x521b98, 0x520230)
	/usr/local/go/src/net/fd_unix.go:250 +0x148
net.(*conn).Read(0x10bcde30, 0x108fd35d, 0x1, 0x1, 0x0, 0x0, 0x0)
	/usr/local/go/src/net/net.go:181 +0x58
net/http.(*connReader).backgroundRead(0x108fd350)
	/usr/local/go/src/net/http/server.go:656 +0x44
created by net/http.(*connReader).startBackgroundRead
	/usr/local/go/src/net/http/server.go:652 +0xd4