ThreadSanitizer says:
WARNING: DATA RACE at 0x0000401042d0
Read by goroutine 155:
crypto/tls.(*Conn).error()
src/pkg/crypto/tls/conn.go:73 +0x7e
crypto/tls.(*Conn).Handshake()
src/pkg/crypto/tls/conn.go:801 +0x6f
crypto/tls.(*Conn).Read()
src/pkg/crypto/tls/conn.go:754 +0x55
bufio.(*Reader).fill()
src/pkg/bufio/bufio.go:77 +0x187
bufio.(*Reader).Peek()
src/pkg/bufio/bufio.go:102 +0x118
net/http.(*persistConn).readLoop()
src/pkg/net/http/transport.go:539 +0x106
Previous write by goroutine 156:
crypto/tls.(*Conn).Write()
src/pkg/crypto/tls/conn.go:735 +0xdb
bufio.(*Writer).Flush()
src/pkg/bufio/bufio.go:418 +0x111
net/http.(*Request).write()
src/pkg/net/http/request.go:376 +0xbd4
net/http.(*persistConn).writeLoop()
src/pkg/net/http/transport.go:641 +0x1e4
Goroutine 155 (running) created at:
net/http.(*Transport).getConn()
src/pkg/net/http/transport.go:390 +0x7be
net/http.(*Transport).RoundTrip()
src/pkg/net/http/transport.go:156 +0x31e
net/http.send()
src/pkg/net/http/client.go:141 +0x47c
net/http.(*Client).doFollowingRedirects()
src/pkg/net/http/client.go:254 +0x941
net/http.(*Client).Get()
src/pkg/net/http/client.go:201 +0xc1
net/http_test.func·044()
src/pkg/net/http/serve_test.go:607 +0x26d
net/http_test.func·065()
src/pkg/net/http/serve_test.go:1201 +0x41
Goroutine 156 (running) created at:
net/http.(*Transport).getConn()
src/pkg/net/http/transport.go:391 +0x7d5
net/http.(*Transport).RoundTrip()
src/pkg/net/http/transport.go:156 +0x31e
net/http.send()
src/pkg/net/http/client.go:141 +0x47c
net/http.(*Client).doFollowingRedirects()
src/pkg/net/http/client.go:254 +0x941
net/http.(*Client).Get()
src/pkg/net/http/client.go:201 +0xc1
net/http_test.func·044()
src/pkg/net/http/serve_test.go:607 +0x26d
net/http_test.func·065()
src/pkg/net/http/serve_test.go:1201 +0x41
Races on interface values are harmful.
13810:c793f0042883 (Jul 24 tip)
ThreadSanitizer says: WARNING: DATA RACE at 0x0000401042d0 Read by goroutine 155: crypto/tls.(*Conn).error() src/pkg/crypto/tls/conn.go:73 +0x7e crypto/tls.(*Conn).Handshake() src/pkg/crypto/tls/conn.go:801 +0x6f crypto/tls.(*Conn).Read() src/pkg/crypto/tls/conn.go:754 +0x55 bufio.(*Reader).fill() src/pkg/bufio/bufio.go:77 +0x187 bufio.(*Reader).Peek() src/pkg/bufio/bufio.go:102 +0x118 net/http.(*persistConn).readLoop() src/pkg/net/http/transport.go:539 +0x106 Previous write by goroutine 156: crypto/tls.(*Conn).Write() src/pkg/crypto/tls/conn.go:735 +0xdb bufio.(*Writer).Flush() src/pkg/bufio/bufio.go:418 +0x111 net/http.(*Request).write() src/pkg/net/http/request.go:376 +0xbd4 net/http.(*persistConn).writeLoop() src/pkg/net/http/transport.go:641 +0x1e4 Goroutine 155 (running) created at: net/http.(*Transport).getConn() src/pkg/net/http/transport.go:390 +0x7be net/http.(*Transport).RoundTrip() src/pkg/net/http/transport.go:156 +0x31e net/http.send() src/pkg/net/http/client.go:141 +0x47c net/http.(*Client).doFollowingRedirects() src/pkg/net/http/client.go:254 +0x941 net/http.(*Client).Get() src/pkg/net/http/client.go:201 +0xc1 net/http_test.func·044() src/pkg/net/http/serve_test.go:607 +0x26d net/http_test.func·065() src/pkg/net/http/serve_test.go:1201 +0x41 Goroutine 156 (running) created at: net/http.(*Transport).getConn() src/pkg/net/http/transport.go:391 +0x7d5 net/http.(*Transport).RoundTrip() src/pkg/net/http/transport.go:156 +0x31e net/http.send() src/pkg/net/http/client.go:141 +0x47c net/http.(*Client).doFollowingRedirects() src/pkg/net/http/client.go:254 +0x941 net/http.(*Client).Get() src/pkg/net/http/client.go:201 +0xc1 net/http_test.func·044() src/pkg/net/http/serve_test.go:607 +0x26d net/http_test.func·065() src/pkg/net/http/serve_test.go:1201 +0x41 Races on interface values are harmful. 13810:c793f0042883 (Jul 24 tip)