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syscall: TestAmbientCapsUserns failed while unprivileged_userns_clone file is missing #32459

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mengzhuo opened this issue Jun 6, 2019 · 1 comment
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syscall: TestAmbientCapsUserns failed while unprivileged_userns_clone file is missing #32459

mengzhuo opened this issue Jun 6, 2019 · 1 comment
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FrozenDueToAge OS-Linux

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@mengzhuo
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mengzhuo commented Jun 6, 2019

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

$ go version
go version devel +064ce85c20 Thu Jun 6 00:12:22 2019 +0000 linux/arm64

Does this issue reproduce with the latest release?

No

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

go env Output
$ go env
GO111MODULE=""
GOARCH="arm64"
GOBIN=""
GOCACHE="/root/.cache/go-build"
GOENV="/root/.config/go/env"
GOEXE=""
GOFLAGS=""
GOHOSTARCH="arm64"
GOHOSTOS="linux"
GONOPROXY=""
GONOSUMDB=""
GOOS="linux"
GOPATH="/root/go"
GOPROXY="https://proxy.golang.org,direct"
GOROOT="/root/godev"
GOSUMDB="sum.golang.org"
GOTMPDIR=""
GOTOOLDIR="/root/godev/pkg/tool/linux_arm64"
GCCGO="gccgo"
AR="ar"
CC="gcc"
CXX="g++"
CGO_ENABLED="1"
GOMOD="/root/godev/src/go.mod"
CGO_CFLAGS="-g -O2"
CGO_CPPFLAGS=""
CGO_CXXFLAGS="-g -O2"
CGO_FFLAGS="-g -O2"
CGO_LDFLAGS="-g -O2"
PKG_CONFIG="pkg-config"
GOGCCFLAGS="-fPIC -pthread -fmessage-length=0 -fdebug-prefix-map=/tmp/go-build9264487
45=/tmp/go-build -gno-record-gcc-switches"

What did you do?

build go with ./all.bash -v

What did you expect to see?

all build and test passed

What did you see instead?

--- FAIL: TestAmbientCapsUserns (0.02s)
    exec_linux_test.go:666: fork/exec /tmp/gotest616948564: invalid argument

I think it's related to CL166460 and #30698.

If /proc/sys/kernel/unprivileged_userns_clone is missing the test will continue and failed eventually.
@gopherbot
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Change https://golang.org/cl/180877 mentions this issue: syscall: skip non-root user namespace test if kernel file is missing

@golang golang locked and limited conversation to collaborators Jun 5, 2020
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@tklauser @mengzhuo @gopherbot