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os: Root.RemoveAll error does not name correct filepath #82509
Description
Go version
go version go1.27.3 linux/amd64
Output of go env in your module/workspace:
AR='ar'
CC='gcc'
CGO_CFLAGS='-O2 -g'
CGO_CPPFLAGS=''
CGO_CXXFLAGS='-O2 -g'
CGO_ENABLED='1'
CGO_FFLAGS='-O2 -g'
CGO_LDFLAGS='-O2 -g'
CXX='g++'
GCCGO='gccgo'
GO111MODULE=''
GOAMD64='v1'
GOARCH='amd64'
GOAUTH='netrc'
GOBIN='/home/user/.local/go/bin'
GOCACHE='/home/user/.cache/go-build'
GOCACHEPROG=''
GODEBUG=''
GOENV='/home/user/.config/go/env'
GOEXE=''
GOEXPERIMENT='nodwarf5'
GOFIPS140='off'
GOFLAGS=''
GOGCCFLAGS='-fPIC -m64 -pthread -Wl,--no-gc-sections -fmessage-length=0 -ffile-prefix-map=/tmp/go-build2228693577=/tmp/go-build -gno-record-gcc-switches'
GOHOSTARCH='amd64'
GOHOSTOS='linux'
GOINSECURE=''
GOMOD='/dev/null'
GOMODCACHE='/home/user/.local/go/pkg/mod'
GONOPROXY=''
GONOSUMDB=''
GOOS='linux'
GOPACKAGESDRIVER=''
GOPATH='/home/user/.local/go'
GOPRIVATE=''
GOPROXY='https://proxy.golang.org,direct'
GOROOT='/usr/lib/go'
GOSUMDB='sum.golang.org'
GOTELEMETRY='local'
GOTELEMETRYDIR='/home/user/.config/go/telemetry'
GOTMPDIR=''
GOTOOLCHAIN='auto'
GOTOOLDIR='/usr/lib/go/pkg/tool/linux_amd64'
GOVCS=''
GOVERSION='go1.27.3-X:nodwarf5'
GOWORK=''
PKG_CONFIG='pkg-config'What did you do?
This example removes a directory with a read-only subdirectory, once with os.RemoveAll and once with Root.RemoveAll for comparison.
Both fail on the same file but only os.RemoveAll reports the correct file path.
package main
import (
"fmt"
"os"
)
func main() {
// test/dir/locked/file where locked is read-only
os.MkdirAll("test/dir/locked", 0o755)
os.WriteFile("test/dir/locked/file", nil, 0o644)
os.Chmod("test/dir/locked", 0o555)
fmt.Println(os.RemoveAll("test/dir"))
root, err := os.OpenRoot("test")
if err != nil {
panic(err)
}
fmt.Println(root.RemoveAll("dir"))
}What did you see happen?
os.RemoveAll: unlinkat test/dir/locked/file: permission denied
Root.RemoveAll: RemoveAll dir: permission denied
Root.RemoveAll reports only the name it was given and the caller cannot tell which entry could not be removed. All other similar functiosn report the correct path like os.RemoveAll does
What did you expect to see?
Root.RemoveAll should correctly report the full path of the file that triggered the error, like or.RemoveAll and others do.
there was a related bug in os.RemoveAll reported in #30491
Activity
gabyhelp commentedon Oct 25, 2026
Related Issues
Related Code Changes
(Emoji vote if this was helpful or unhelpful; more detailed feedback welcome in this discussion.)
gopherbot commentedon Oct 26, 2026
Change https://go.dev/cl/853985 mentions this issue:
os: preserve child paths in Root.RemoveAll errors