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Intermittent internal/dialerapi tests failure #1

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bassosimone opened this issue Sep 19, 2019 · 2 comments
Closed

Intermittent internal/dialerapi tests failure #1

bassosimone opened this issue Sep 19, 2019 · 2 comments
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bassosimone commented Sep 19, 2019 •
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i have seen this intermittent unit tests failure:

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{"Connect":{"ConnID":3,"Duration":57888,"Error":null,"LocalAddress":"10.20.1.95:38297","Network":"udp","RemoteAddress":"169.254.169.254:53","Time":986782}}
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{"Read":{"ConnID":2,"Duration":2140975,"Error":null,"NumBytes":60,"Time":2879402}}
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{"Read":{"ConnID":3,"Duration":1857601,"Error":null,"NumBytes":128,"Time":2965734}}
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{"Connect":{"ConnID":6,"Duration":20310,"Error":null,"LocalAddress":"10.20.1.95:50069","Network":"udp","RemoteAddress":"169.254.169.254:53","Time":160114}}
{"DNSQuery":{"ConnID":5,"Message":{"Data":"Zb8BAAABAAAAAAAAA3d3dwZnb29nbGUDY29tAAAcAAE="},"Time":164321}}
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{"Read":{"ConnID":4,"Duration":344712,"Error":null,"NumBytes":51,"Time":126364167}}
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{"Connect":{"ConnID":34,"Duration":2327,"Error":{"Op":"dial","Net":"udp","Source":null,"Addr":{"IP":"169.254.169.254","Port":53,"Zone":""},"Err":{}},"LocalAddress":"","Network":"udp","RemoteAddress":"","Time":516219}}
{"Connect":{"ConnID":35,"Duration":2438,"Error":{"Op":"dial","Net":"udp","Source":null,"Addr":{"IP":"169.254.169.254","Port":53,"Zone":""},"Err":{}},"LocalAddress":"","Network":"udp","RemoteAddress":"","Time":532564}}
{"Connect":{"ConnID":36,"Duration":1217,"Error":{"Op":"dial","Net":"udp","Source":null,"Addr":{"IP":"169.254.169.254","Port":53,"Zone":""},"Err":{}},"LocalAddress":"","Network":"udp","RemoteAddress":"","Time":544268}}
{"Resolve":{"Addresses":null,"ConnID":18,"Duration":556623,"Error":{"Err":"dial udp 169.254.169.254:53: i/o timeout","Name":"ooni.io","Server":"169.254.169.254:53","IsTimeout":true,"IsTemporary":true},"Hostname":"ooni.io","Time":562668}}
{"Connect":{"ConnID":38,"Duration":50764,"Error":null,"LocalAddress":"10.20.1.95:60391","Network":"udp","RemoteAddress":"169.254.169.254:53","Time":104059}}
{"Connect":{"ConnID":39,"Duration":35413,"Error":null,"LocalAddress":"10.20.1.95:58164","Network":"udp","RemoteAddress":"169.254.169.254:53","Time":102790}}
{"Write":{"ConnID":38,"Duration":52578,"Error":null,"NumBytes":25,"Time":173664}}
{"DNSQuery":{"ConnID":38,"Message":{"Data":"ojwBAAABAAAAAAAABG9vbmkCaW8AABwAAQ=="},"Time":185338}}
{"Write":{"ConnID":39,"Duration":22519,"Error":null,"NumBytes":25,"Time":173647}}
{"DNSQuery":{"ConnID":39,"Message":{"Data":"Y44BAAABAAAAAAAABG9vbmkCaW8AAAEAAQ=="},"Time":207284}}
{"Read":{"ConnID":39,"Duration":676816,"Error":null,"NumBytes":41,"Time":889539}}
{"Read":{"ConnID":38,"Duration":710622,"Error":null,"NumBytes":98,"Time":906515}}
{"DNSReply":{"ConnID":38,"Message":{"Data":"ojyBgAABAAAAAQAABG9vbmkCaW8AABwAAcAMAAYAAQAABwMAPQRkbnMxEXJlZ2lzdHJhci1zZXJ2ZXJzA2NvbQAKaG9zdG1hc3RlcsAqeFjkkAAAqMAAAA4QAAk6gAAADhE="},"Time":915206}}
{"Close":{"ConnID":38,"Duration":12943,"Error":null,"Time":941168}}
{"DNSReply":{"ConnID":39,"Message":{"Data":"Y46BgAABAAEAAAAABG9vbmkCaW8AAAEAAcAMAAEAAQAAAScABGjGDjQ="},"Time":905233}}
{"Close":{"ConnID":39,"Duration":3932,"Error":null,"Time":958721}}
{"Resolve":{"Addresses":["104.198.14.52"],"ConnID":37,"Duration":961286,"Error":null,"Hostname":"ooni.io","Time":967412}}
{"Connect":{"ConnID":37,"Duration":37217107,"Error":null,"LocalAddress":"10.20.1.95:38842","Network":"tcp","RemoteAddress":"104.198.14.52:443","Time":38205954}}
{"Write":{"ConnID":37,"Duration":26543,"Error":null,"NumBytes":165,"Time":38356072}}
{"Read":{"ConnID":37,"Duration":111836763,"Error":null,"NumBytes":1024,"Time":150233740}}
{"Read":{"ConnID":37,"Duration":7949,"Error":null,"NumBytes":2157,"Time":150321966}}
{"Write":{"ConnID":37,"Duration":23972,"Error":null,"NumBytes":7,"Time":150762665}}
{"TLSHandshake":{"Config":{"NextProtos":null,"ServerName":"www.google.com"},"ConnectionState":{"CipherSuite":0,"NegotiatedProtocol":"","NegotiatedProtocolIsMutual":false,"PeerCertificates":null,"Version":0},"ConnID":37,"Duration":112510360,"Error":{"Certificate":{"Raw":"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","RawTBSCertificate":"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","RawSubjectPublicKeyInfo":"MIIBIjANBgkqhkiG9w0BAQEFAAOCAQ8AMIIBCgKCAQEA7Akdy0jWjGqDTCXP0Jli9uGVVnqwHQI4A0J8L2oiNNSnD5PFWcb3+25EM2R9d6x/ue+OY+Vlx9BAqCmYZqFfmd0VmZe8JcYy287llaerN+/SbGTNNBvpF0My08D1ef8u/NoVGXFWl6DrEYzB5SksNMkAlaRwycYBHaY1Rzqe5CC15CyD/sjpimylhkpqxH/bEOPkVqxB/b70epsmB1JLNAoXjpVcvZBEErlQXWUV4EVYwCJSTjZK75hnL/DmlUWOUdpVUTjb+4bV3K51YBpPrkAghP3V4rsaCEe/mmm4xlRSYQxXQVR2S0xcQKoKWu2SScw2J7fShEWPUANckYYd3QIDAQAB","RawSubject":"MGExCzAJBgNVBAYTAlVTMQswCQYDVQQIEwJjYTEWMBQGA1UEBxMNU2FuIEZyYW5jaXNjbzEVMBMGA1UEChMMTmV0bGlmeSwgSW5jMRYwFAYDVQQDDA0qLm5ldGxpZnkuY29t","RawIssuer":"ME0xCzAJBgNVBAYTAlVTMRUwEwYDVQQKEwxEaWdpQ2VydCBJbmMxJzAlBgNVBAMTHkRpZ2lDZXJ0IFNIQTIgU2VjdXJlIFNlcnZlciBDQQ==","Signature":"O1WvWrcc1l8rEeRbTNJA37a4ogVrxXw9SHtczCeNGb1B4e/krfmAdqJL9Eqq1LCXIUNpkLL8sl92yp9Xe25n0gUhXXgHhPIWioQhXH+ERbIJu+l9qxAiK/KmXgrlILmgBRAEzfNhVmHz6XQh+5N9DiIwuMV6c/Vz82ZSJ+bQe6Z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{"Close":{"ConnID":37,"Duration":38917,"Error":null,"Time":151312336}}
{"Close":{"ConnID":37,"Duration":1297,"Error":{"Op":"close","Net":"tcp","Source":{"IP":"10.20.1.95","Port":38842,"Zone":""},"Addr":{"IP":"104.198.14.52","Port":443,"Zone":""},"Err":{}},"Time":151328106}}
{"Connect":{"ConnID":41,"Duration":50778,"Error":null,"LocalAddress":"10.20.1.95:46106","Network":"udp","RemoteAddress":"169.254.169.254:53","Time":126700}}
{"Write":{"ConnID":41,"Duration":28146,"Error":null,"NumBytes":25,"Time":174430}}
{"DNSQuery":{"ConnID":41,"Message":{"Data":"/00BAAABAAAAAAAABG9vbmkCaW8AABwAAQ=="},"Time":186203}}
{"Connect":{"ConnID":42,"Duration":18605,"Error":null,"LocalAddress":"10.20.1.95:49445","Network":"udp","RemoteAddress":"169.254.169.254:53","Time":238939}}
{"Write":{"ConnID":42,"Duration":12574,"Error":null,"NumBytes":25,"Time":262590}}
{"DNSQuery":{"ConnID":42,"Message":{"Data":"s7YBAAABAAAAAAAABG9vbmkCaW8AAAEAAQ=="},"Time":271723}}
{"Read":{"ConnID":42,"Duration":652349,"Error":null,"NumBytes":41,"Time":929516}}
{"DNSReply":{"ConnID":42,"Message":{"Data":"s7aBgAABAAEAAAAABG9vbmkCaW8AAAEAAcAMAAEAAQAAASYABGjGDjQ="},"Time":942914}}
{"Read":{"ConnID":41,"Duration":749495,"Error":null,"NumBytes":98,"Time":947392}}
{"DNSReply":{"ConnID":41,"Message":{"Data":"/02BgAABAAAAAQAABG9vbmkCaW8AABwAAcAMAAYAAQAABwIAPQRkbnMxEXJlZ2lzdHJhci1zZXJ2ZXJzA2NvbQAKaG9zdG1hc3RlcsAqeFjkkAAAqMAAAA4QAAk6gAAADhE="},"Time":955032}}
{"Close":{"ConnID":42,"Duration":12368,"Error":null,"Time":966478}}
{"Close":{"ConnID":41,"Duration":7935,"Error":null,"Time":969662}}
{"Resolve":{"Addresses":["104.198.14.52"],"ConnID":40,"Duration":981152,"Error":null,"Hostname":"ooni.io","Time":984131}}
{"Connect":{"ConnID":40,"Duration":38901257,"Error":null,"LocalAddress":"10.20.1.95:38844","Network":"tcp","RemoteAddress":"104.198.14.52:443","Time":39916544}}
{"TLSHandshake":{"Config":{"NextProtos":null,"ServerName":"ooni.io"},"ConnectionState":{"CipherSuite":0,"NegotiatedProtocol":"","NegotiatedProtocolIsMutual":false,"PeerCertificates":null,"Version":0},"ConnID":40,"Duration":12655,"Error":{},"Time":39989371}}
{"Close":{"ConnID":40,"Duration":43502,"Error":null,"Time":40071350}}
{"Close":{"ConnID":40,"Duration":1349,"Error":{"Op":"close","Net":"tcp","Source":{"IP":"10.20.1.95","Port":38844,"Zone":""},"Addr":{"IP":"104.198.14.52","Port":443,"Zone":""},"Err":{}},"Time":40087896}}
PASS
panic: runtime error: invalid memory address or nil pointer dereference
[signal SIGSEGV: segmentation violation code=0x1 addr=0x0 pc=0x5ce8be]
goroutine 36 [running]:
crypto/tls.(*Conn).Handshake(0x0, 0x0, 0x0)
	/home/travis/.gimme/versions/go1.11.13.linux.amd64/src/crypto/tls/conn.go:1258 +0x2e
github.com/bassosimone/netx/internal/dialerapi.(*Dialer).tlsHandshake.func1(0xc000068900, 0xc00016c108)
	/home/travis/gopath/src/github.com/bassosimone/netx/internal/dialerapi/dialerapi.go:174 +0x38
created by github.com/bassosimone/netx/internal/dialerapi.(*Dialer).tlsHandshake
	/home/travis/gopath/src/github.com/bassosimone/netx/internal/dialerapi/dialerapi.go:173 +0x1b7
FAIL	github.com/bassosimone/netx/internal/dialerapi	4.392s
@bassosimone bassosimone added the bug Something isn't working label Sep 19, 2019
@bassosimone bassosimone self-assigned this Sep 19, 2019
@bassosimone
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Contributor Author

Running go test -race -v -count=1 ./internal/dialerapi/... I saw:

==================
WARNING: DATA RACE
Write at 0x00c0001cc018 by goroutine 43:
  github.com/bassosimone/netx/internal/dialerapi.(*Dialer).tlsHandshake()
      /Users/sbasso/src/github.com/bassosimone/netx/internal/dialerapi/dialerapi.go:205 +0x9fe
  github.com/bassosimone/netx/internal/dialerapi.(*Dialer).DialTLS()
      /Users/sbasso/src/github.com/bassosimone/netx/internal/dialerapi/dialerapi.go:97 +0x1e4
  github.com/bassosimone/netx/internal/dialerapi_test.TestIntegrationTLSHandshakeTimeout()
      /Users/sbasso/src/github.com/bassosimone/netx/internal/dialerapi/dialerapi_test.go:131 +0xaf
  testing.tRunner()
      /usr/local/Cellar/go/1.13/libexec/src/testing/testing.go:909 +0x199

Previous read at 0x00c0001cc018 by goroutine 46:
  github.com/bassosimone/netx/internal/dialerapi.(*Dialer).tlsHandshake.func1()
      /Users/sbasso/src/github.com/bassosimone/netx/internal/dialerapi/dialerapi.go:174 +0x38

Goroutine 43 (running) created at:
  testing.(*T).Run()
      /usr/local/Cellar/go/1.13/libexec/src/testing/testing.go:960 +0x651
  testing.runTests.func1()
      /usr/local/Cellar/go/1.13/libexec/src/testing/testing.go:1202 +0xa6
  testing.tRunner()
      /usr/local/Cellar/go/1.13/libexec/src/testing/testing.go:909 +0x199
  testing.runTests()
      /usr/local/Cellar/go/1.13/libexec/src/testing/testing.go:1200 +0x521
  testing.(*M).Run()
      /usr/local/Cellar/go/1.13/libexec/src/testing/testing.go:1117 +0x2ff
  main.main()
      _testmain.go:62 +0x223

Goroutine 46 (running) created at:
  github.com/bassosimone/netx/internal/dialerapi.(*Dialer).tlsHandshake()
      /Users/sbasso/src/github.com/bassosimone/netx/internal/dialerapi/dialerapi.go:173 +0x29d
  github.com/bassosimone/netx/internal/dialerapi.(*Dialer).DialTLS()
      /Users/sbasso/src/github.com/bassosimone/netx/internal/dialerapi/dialerapi.go:97 +0x1e4
  github.com/bassosimone/netx/internal/dialerapi_test.TestIntegrationTLSHandshakeTimeout()
      /Users/sbasso/src/github.com/bassosimone/netx/internal/dialerapi/dialerapi_test.go:131 +0xaf
  testing.tRunner()
      /usr/local/Cellar/go/1.13/libexec/src/testing/testing.go:909 +0x199
==================

@bassosimone
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So, the problem is that, with a super short timeout as in

func TestIntegrationTLSHandshakeTimeout(t *testing.T) {
	dialer := dialerapi.NewDialer(time.Now(), handlers.StdoutHandler)
	dialer.TLSHandshakeTimeout = 1 // very small timeout
	conn, err := dialer.DialTLS("tcp", "ooni.io:443")
	if err == nil {
		t.Fatal("expected an error here")
	}
	if conn != nil {
		t.Fatal("expected a nil conn here")
	}
}

There is a race between:

	tc = tls.Client(net.Conn(conn), config)
	ctx, cancel := context.WithTimeout(context.Background(), timeout)
	defer cancel()
	ech := make(chan error, 1)
	start := time.Now()
	go func() {
		ech <- tc.Handshake()
	}()
	select {
	case <-ctx.Done():
		err = ctx.Err()
	case err = <-ech:
		// FALLTHROUGH
	}

and

	if err != nil {
		tc.Close()
		tc = nil
	}

where tc is set to nil before the Handshake could start.

bassosimone added a commit that referenced this issue Sep 19, 2019
@bassosimone
.travis.yml: run tests with -v and -race
dd3a261 
This would have prevented #1 early.
bassosimone added a commit that referenced this issue Oct 22, 2019
@bassosimone
netx: move beginning and handler at toplevel
6dfb9d0 
All the netx code now does not depend on a preconfigured
beginning and handler, except toplevel code.

This is very helpful because it allows us to specify different
contexts depending on circumstances.

Yet, the public API has not changed because there is still
a notion of the binding of a dialer with a handler.

What I like about this change is that it allows us to evolve
our code potentially in two directions:

1. we keep a single handler and we provide correct information
concerning the current TransactionID

2. we switch to a rooted handlers model where the handler is
passed as part of the context

Now, internals in netx already follow model #2, while the toplevel
API is still using model #1.

The part that needs refactoring now is httpx.
@bassosimone bassosimone mentioned this issue Oct 22, 2019
Closed
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