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

go version go1.20.3 darwin/arm64

Does this issue reproduce with the latest release?

yes

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

$ go env
GO111MODULE="on"

GOARCH="arm64"

GOEXE=""

GOEXPERIMENT=""

GOFLAGS=""

GOHOSTARCH="arm64"

GOHOSTOS="darwin"

GOOS="darwin"

GOPATH="/Users/jsteenbergen/go"

GOPRIVATE="go.crwd.dev/*"

GOPROXY="https://go-proxy.crwd.dev"

GOTMPDIR=""

GOVCS=""

GOVERSION="go1.20.3"

GCCGO="gccgo"

AR="ar"

CC="clang"

CXX="clang++"

CGO_ENABLED="1"

CGO_CPPFLAGS=""

CGO_CXXFLAGS="-O2 -g"

CGO_FFLAGS="-O2 -g"

CGO_LDFLAGS="-O2 -g"

PKG_CONFIG="pkg-config"

GOGCCFLAGS="-fPIC -arch arm64 -pthread -fno-caret-diagnostics -Qunused-arguments -fmessage-length=0 -fdebug-prefix-map=/var/folders/nc/_09t16c10vl89ld5s0jkkg3h0000gn/T/go-build2783719398=/tmp/go-build -gno-record-gcc-switches -fno-common"

What did you do?

I was initially attempting to tar and gzip compress a module. I had run go mod vendor in this module to have all the module deps available in the tar. I quickly ran into errors in the tar reader (no issues with the tar writer). I get an unexpected EOF error.

I spent time bisecting this. I narrowed it down to a single dependency, the golang.org/x/sys (from go.mod file: golang.org/x/sys v0.0.0-20220811171246-fbc7d0a398ab) module. I then remove the go code that was creating the compresssed tarchive and replaced it with with running tar -czvf in my shell to create a tar of a directory of the module with nothing but the vendor/golang.org/x/sys directory. The issue reproduces.

example here: testtar.tar.gz

What did you expect to see?

I expected reading the tar would work without a hitch.

What did you see instead?

I see an unexpected EOF error. When the module golang.org/x/sys from the first module I tested, is removed, the reading of the tar archive works fine though.