net/http: TestTransportKeepAlives failures

[gopherbot]

#!watchflakes
post <- pkg == "net/http" && test == "TestTransportKeepAlives"

Issue created automatically to collect these failures.

Example (log):

2022/10/23 09:58:41 http: TLS handshake error from 127.0.0.1:59308: EOF
2022/10/23 09:58:41 http: TLS handshake error from 127.0.0.1:59304: EOF
2022/10/23 09:58:41 http: TLS handshake error from 127.0.0.1:59307: read tcp 127.0.0.1:59309->127.0.0.1:59307: read: connection reset by peer
2022/10/23 09:58:41 http: TLS handshake error from 127.0.0.1:59303: read tcp 127.0.0.1:59309->127.0.0.1:59303: read: connection reset by peer
2022/10/23 09:58:41 http: TLS handshake error from 127.0.0.1:59300: EOF
--- FAIL: TestTransportKeepAlives (0.00s)
    --- FAIL: TestTransportKeepAlives/h1 (0.08s)
        transport_test.go:191: error in disableKeepAlive=false. unexpected bodiesDiffer=true; body1="127.0.0.1:59146, *net.TCPConn 0x4000310b80"; body2="127.0.0.1:59143, *net.TCPConn 0x4000010820"
2022/10/23 09:58:47 http: TLS handshake error from 127.0.0.1:59139: write tcp 127.0.0.1:59140->127.0.0.1:59139: i/o timeout
2022/10/23 09:58:47 http: TLS handshake error from 127.0.0.1:59136: write tcp 127.0.0.1:59137->127.0.0.1:59136: i/o timeout
2022/10/23 09:58:47 http: TLS handshake error from 127.0.0.1:59130: write tcp 127.0.0.1:59131->127.0.0.1:59130: i/o timeout
2022/10/23 09:58:55 http: TLS handshake error from 127.0.0.1:58892: EOF
2022/10/23 09:58:55 http: TLS handshake error from 127.0.0.1:58885: EOF
2022/10/23 09:58:58 http: TLS handshake error from 127.0.0.1:58859: read tcp 127.0.0.1:58862->127.0.0.1:58859: use of closed network connection
2022/10/23 09:58:58 http: TLS handshake error from 127.0.0.1:58857: read tcp 127.0.0.1:58862->127.0.0.1:58857: use of closed network connection
2022/10/23 09:58:58 http: TLS handshake error from 127.0.0.1:58855: read tcp 127.0.0.1:58862->127.0.0.1:58855: use of closed network connection
2022/10/23 09:58:58 http: TLS handshake error from 127.0.0.1:58852: read tcp 127.0.0.1:58862->127.0.0.1:58852: use of closed network connection
2022/10/23 09:58:58 http: TLS handshake error from 127.0.0.1:58858: write tcp 127.0.0.1:58862->127.0.0.1:58858: use of closed network connection
2022/10/23 09:58:58 http: TLS handshake error from 127.0.0.1:58853: write tcp 127.0.0.1:58862->127.0.0.1:58853: use of closed network connection
2022/10/23 09:58:58 http: TLS handshake error from 127.0.0.1:58839: read tcp 127.0.0.1:58843->127.0.0.1:58839: use of closed network connection
2022/10/23 09:58:58 http: TLS handshake error from 127.0.0.1:58838: read tcp 127.0.0.1:58843->127.0.0.1:58838: use of closed network connection
2022/10/23 09:58:58 http: TLS handshake error from 127.0.0.1:58835: read tcp 127.0.0.1:58843->127.0.0.1:58835: use of closed network connection
2022/10/23 09:58:58 http: TLS handshake error from 127.0.0.1:58836: read tcp 127.0.0.1:58843->127.0.0.1:58836: use of closed network connection
2022/10/23 09:58:58 http: TLS handshake error from 127.0.0.1:58834: read tcp 127.0.0.1:58843->127.0.0.1:58834: use of closed network connection
2022/10/23 09:58:58 http: TLS handshake error from 127.0.0.1:58837: write tcp 127.0.0.1:58843->127.0.0.1:58837: use of closed network connection
2022/10/23 09:59:00 http2: server: error reading preface from client 127.0.0.1:58725: bogus greeting "CONNECT golang.fake.tld:"
2022/10/23 09:59:00 http2: server: error reading preface from client 127.0.0.1:58723: bogus greeting "CONNECT golang.fake.tld:"

— watchflakes

[gopherbot]

Found new dashboard test flakes for:

#!watchflakes
post <- pkg == "net/http" && test == "TestTransportKeepAlives"

2022-10-18 20:53 netbsd-arm64-bsiegert go@a8e4b8c2 net/http.TestTransportKeepAlives (log)

2022/10/23 09:58:41 http: TLS handshake error from 127.0.0.1:59308: EOF
2022/10/23 09:58:41 http: TLS handshake error from 127.0.0.1:59304: EOF
2022/10/23 09:58:41 http: TLS handshake error from 127.0.0.1:59307: read tcp 127.0.0.1:59309->127.0.0.1:59307: read: connection reset by peer
2022/10/23 09:58:41 http: TLS handshake error from 127.0.0.1:59303: read tcp 127.0.0.1:59309->127.0.0.1:59303: read: connection reset by peer
2022/10/23 09:58:41 http: TLS handshake error from 127.0.0.1:59300: EOF
--- FAIL: TestTransportKeepAlives (0.00s)
    --- FAIL: TestTransportKeepAlives/h1 (0.08s)
        transport_test.go:191: error in disableKeepAlive=false. unexpected bodiesDiffer=true; body1="127.0.0.1:59146, *net.TCPConn 0x4000310b80"; body2="127.0.0.1:59143, *net.TCPConn 0x4000010820"
2022/10/23 09:58:47 http: TLS handshake error from 127.0.0.1:59139: write tcp 127.0.0.1:59140->127.0.0.1:59139: i/o timeout
2022/10/23 09:58:47 http: TLS handshake error from 127.0.0.1:59136: write tcp 127.0.0.1:59137->127.0.0.1:59136: i/o timeout
2022/10/23 09:58:47 http: TLS handshake error from 127.0.0.1:59130: write tcp 127.0.0.1:59131->127.0.0.1:59130: i/o timeout
2022/10/23 09:58:55 http: TLS handshake error from 127.0.0.1:58892: EOF
2022/10/23 09:58:55 http: TLS handshake error from 127.0.0.1:58885: EOF
2022/10/23 09:58:58 http: TLS handshake error from 127.0.0.1:58859: read tcp 127.0.0.1:58862->127.0.0.1:58859: use of closed network connection
2022/10/23 09:58:58 http: TLS handshake error from 127.0.0.1:58857: read tcp 127.0.0.1:58862->127.0.0.1:58857: use of closed network connection
2022/10/23 09:58:58 http: TLS handshake error from 127.0.0.1:58855: read tcp 127.0.0.1:58862->127.0.0.1:58855: use of closed network connection
2022/10/23 09:58:58 http: TLS handshake error from 127.0.0.1:58852: read tcp 127.0.0.1:58862->127.0.0.1:58852: use of closed network connection
2022/10/23 09:58:58 http: TLS handshake error from 127.0.0.1:58858: write tcp 127.0.0.1:58862->127.0.0.1:58858: use of closed network connection
2022/10/23 09:58:58 http: TLS handshake error from 127.0.0.1:58853: write tcp 127.0.0.1:58862->127.0.0.1:58853: use of closed network connection
2022/10/23 09:58:58 http: TLS handshake error from 127.0.0.1:58839: read tcp 127.0.0.1:58843->127.0.0.1:58839: use of closed network connection
2022/10/23 09:58:58 http: TLS handshake error from 127.0.0.1:58838: read tcp 127.0.0.1:58843->127.0.0.1:58838: use of closed network connection
2022/10/23 09:58:58 http: TLS handshake error from 127.0.0.1:58835: read tcp 127.0.0.1:58843->127.0.0.1:58835: use of closed network connection
2022/10/23 09:58:58 http: TLS handshake error from 127.0.0.1:58836: read tcp 127.0.0.1:58843->127.0.0.1:58836: use of closed network connection
2022/10/23 09:58:58 http: TLS handshake error from 127.0.0.1:58834: read tcp 127.0.0.1:58843->127.0.0.1:58834: use of closed network connection
2022/10/23 09:58:58 http: TLS handshake error from 127.0.0.1:58837: write tcp 127.0.0.1:58843->127.0.0.1:58837: use of closed network connection
2022/10/23 09:59:00 http2: server: error reading preface from client 127.0.0.1:58725: bogus greeting "CONNECT golang.fake.tld:"
2022/10/23 09:59:00 http2: server: error reading preface from client 127.0.0.1:58723: bogus greeting "CONNECT golang.fake.tld:"

— watchflakes

[bcmills]

This looks like the same failure mode reported on solaris-amd64-oraclerel in #35159. (Keeping this issue instead because it already has a watchflakes pattern configured.)

Since there are no common elements between netbsd/arm64 and solaris/amd64, this looks to me like a platform-independent net/http bug (attn @neild).