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test: fix race when listing cgroups

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A cgroup could have been deleted by the time WalkDir is trying to
access it.  Ignore the error and continue.

Closes: https://github.com/containers/podman/issues/17989

Signed-off-by: Giuseppe Scrivano <gscrivan@redhat.com>
This commit is contained in:
Giuseppe Scrivano
2023-04-20 10:16:36 +02:00
parent 911be1cbcb
commit 0364aef1e0
1 changed files with 6 additions and 3 deletions
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9
test/e2e/pod_rm_test.go
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@ -1,6 +1,7 @@
package integration
import (
"errors"
"fmt"
"io/fs"
"os"
@ -47,11 +48,13 @@ var _ = Describe("Podman pod rm", func() {
// Also check that we don't leak cgroups
err := filepath.WalkDir("/sys/fs/cgroup", func(path string, d fs.DirEntry, err error) error {
if err != nil {
// A cgroup directory could have been deleted in the meanwhile filepath.WalkDir was
// accessing it. If that happens, we just ignore the error.
if d.IsDir() && errors.Is(err, os.ErrNotExist) {
return nil
}
return err
}
if !d.IsDir() {
Expect(err).ToNot(HaveOccurred())
}
if strings.Contains(d.Name(), podid) {
return fmt.Errorf("leaking cgroup path %s", path)
}