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net: IPv6 tests fail when IPv6 is disabled #10721

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bradfitz opened this issue May 6, 2015 · 2 comments

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commented May 6, 2015

@mikioh, on my home Linux server I had to disable IPv6 yesterday because Comcast stopped routing it for a few hours and made all Google services break (thanks, Comcast), but it also means the net package started failing:

$ go test -short
--- FAIL: TestDualStackTCPListener (0.00s)
        listen_test.go:227: skipping tcp  test
        listen_test.go:227: skipping tcp  test
        listen_test.go:227: skipping tcp 0.0.0.0 test
        listen_test.go:227: skipping tcp  test
        listen_test.go:227: skipping tcp :: test
        listen_test.go:227: skipping tcp 0.0.0.0 test
        listen_test.go:227: skipping tcp :: test
        listen_test.go:227: skipping tcp ::ffff:0.0.0.0 test
        listen_test.go:227: skipping tcp :: test
        listen_test.go:227: skipping tcp4  test
        listen_test.go:227: skipping tcp6  test
        listen_test.go:227: skipping tcp4 0.0.0.0 test
        listen_test.go:227: skipping tcp6 :: test
        listen_test.go:238: no dualstack port available
--- FAIL: TestDualStackUDPListener (0.00s)
        listen_test.go:311: skipping udp  test
        listen_test.go:311: skipping udp  test
        listen_test.go:311: skipping udp 0.0.0.0 test
        listen_test.go:311: skipping udp  test
        listen_test.go:311: skipping udp :: test
        listen_test.go:311: skipping udp 0.0.0.0 test
        listen_test.go:311: skipping udp :: test
        listen_test.go:311: skipping udp ::ffff:0.0.0.0 test
        listen_test.go:311: skipping udp :: test
        listen_test.go:311: skipping udp4  test
        listen_test.go:311: skipping udp6  test
        listen_test.go:311: skipping udp4 0.0.0.0 test
        listen_test.go:311: skipping udp6 :: test
        listen_test.go:322: no dualstack port available

I have sysctl:

net.ipv6.conf.all.disable_ipv6 = 1
net.ipv6.conf.br0.disable_ipv6 = 1
net.ipv6.conf.default.disable_ipv6 = 1
net.ipv6.conf.docker0.disable_ipv6 = 1
net.ipv6.conf.eth0.disable_ipv6 = 1
net.ipv6.conf.lo.disable_ipv6 = 1
net.ipv6.conf.lxcbr0.disable_ipv6 = 1
net.ipv6.conf.virbr0.disable_ipv6 = 1
net.ipv6.conf.virbr1.disable_ipv6 = 1
net.ipv6.conf.vnet0.disable_ipv6 = 1

@bradfitz bradfitz added this to the Go1.5 milestone May 6, 2015

@mikioh mikioh added the Testing label May 6, 2015

@mikioh

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commented May 6, 2015

@gopherbot

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commented May 7, 2015

CL https://golang.org/cl/9777 mentions this issue.

@mikioh mikioh closed this in f963cb7 May 7, 2015

@mikioh mikioh removed their assignment May 27, 2015

@golang golang locked and limited conversation to collaborators Jun 25, 2016

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