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x/mobile: unix.Connect() return network is unreachable #58987

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aztecrabbit opened this issue Mar 12, 2023 · 1 comment
Open

x/mobile: unix.Connect() return network is unreachable #58987

aztecrabbit opened this issue Mar 12, 2023 · 1 comment
Labels
mobile Android, iOS, and x/mobile NeedsInvestigation Someone must examine and confirm this is a valid issue and not a duplicate of an existing one.
Milestone
Unreleased

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@aztecrabbit
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What version of Go are you using (go version)?

$ go version
go version go1.20.2 linux/amd64

Gomobile latest version, using:

$ go install golang.org/x/mobile/cmd/gomobile@latest

Does this issue reproduce with the latest release?

yes

What operating system and processor architecture are you using (go env)?

go env Output
$ go env
GO111MODULE=""
GOARCH="amd64"
GOBIN=""
GOCACHE="/home/aztecrabbit/.cache/go-build"
GOENV="/home/aztecrabbit/.config/go/env"
GOEXE=""
GOEXPERIMENT=""
GOFLAGS=""
GOHOSTARCH="amd64"
GOHOSTOS="linux"
GOINSECURE=""
GOMODCACHE="/home/aztecrabbit/go/pkg/mod"
GONOPROXY=""
GONOSUMDB=""
GOOS="linux"
GOPATH="/home/aztecrabbit/go"
GOPRIVATE=""
GOPROXY="https://proxy.golang.org,direct"
GOROOT="/usr/lib/go"
GOSUMDB="sum.golang.org"
GOTMPDIR=""
GOTOOLDIR="/usr/lib/go/pkg/tool/linux_amd64"
GOVCS=""
GOVERSION="go1.20.2"
GCCGO="gccgo"
GOAMD64="v1"
AR="ar"
CC="gcc"
CXX="g++"
CGO_ENABLED="1"
GOMOD="/home/aztecrabbit/Developments/Golang/test_unix/go.mod"
GOWORK=""
CGO_CFLAGS="-O2 -g"
CGO_CPPFLAGS=""
CGO_CXXFLAGS="-O2 -g"
CGO_FFLAGS="-O2 -g"
CGO_LDFLAGS="-O2 -g"
PKG_CONFIG="pkg-config"
GOGCCFLAGS="-fPIC -m64 -pthread -Wl,--no-gc-sections -fmessage-length=0 -fdebug-prefix-map=/tmp/go-build2974479168=/tmp/go-build -gno-record-gcc-switches"

What did you do?

package main

import (
	"fmt"
	"net"

	"golang.org/x/sys/unix"
)

func main() {
	fd, err := unix.Socket(unix.AF_INET6, unix.SOCK_STREAM, unix.IPPROTO_TCP)
	if err != nil {
		panic(err)
	}

	ips, err := net.LookupIP("www.google.com")
	if err != nil {
		panic(err)
	}

	sa := &unix.SockaddrInet6{
		Port: 80,
	}
	copy(sa.Addr[:], ips[0])

	err = unix.Connect(fd, sa)
	if err != nil {
		panic(err)
	}

	fmt.Println("Complete without error")
}

What did you expect to see?

Complete without error

What did you see instead?

android real device

panic: network is unreachable

emulator using context.WithTimeout() 30 seconds

panic: context deadline exceeded

this bug is only affecting go 1.20, go 1.19.4 works fine.
@gopherbot gopherbot added the mobile Android, iOS, and x/mobile label Mar 12, 2023
@gopherbot gopherbot added this to the Unreleased milestone Mar 12, 2023
@cherrymui
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cc @golang/android

@cherrymui cherrymui added the NeedsInvestigation Someone must examine and confirm this is a valid issue and not a duplicate of an existing one. label Mar 13, 2023
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Labels
mobile Android, iOS, and x/mobile NeedsInvestigation Someone must examine and confirm this is a valid issue and not a duplicate of an existing one.
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Milestone
Unreleased
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3 participants
@gopherbot @cherrymui @aztecrabbit