github/kubernetes
1
0
Fork 0
mirror of https://github.com/k3s-io/kubernetes.git synced 2025-07-30 06:54:01 +00:00
Code Issues Projects Releases Wiki Activity

Merge pull request #103780 from shyamjvs/fix-exec-command

Browse Source 
Ignore 'wait: no child processes' error when calling mount/umount
This commit is contained in:
Kubernetes Prow Robot 2021-08-05 01:43:25 -07:00 committed by GitHub
commit f3e9fdc642
No known key found for this signature in database
GPG Key ID: 4AEE18F83AFDEB23
1 changed files with 18 additions and 0 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

18
staging/src/k8s.io/mount-utils/mount_linux.go
View File

@ -45,6 +45,8 @@ const (
fsckErrorsCorrected = 1
// 'fsck' found errors but exited without correcting them
fsckErrorsUncorrected = 4
// Error thrown by exec cmd.Run() when process spawned by cmd.Start() completes before cmd.Wait() is called (see - k/k issue #103753)
errNoChildProcesses = "wait: no child processes"
)
// Mounter provides the default implementation of mount.Interface
@ -176,6 +178,14 @@ func (mounter *Mounter) doMount(mounterPath string, mountCmd string, source stri
command := exec.Command(mountCmd, mountArgs...)
output, err := command.CombinedOutput()
if err != nil {
if err.Error() == errNoChildProcesses {
if command.ProcessState.Success() {
// We don't consider errNoChildProcesses an error if the process itself succeeded (see - k/k issue #103753).
return nil
}
// Rewrite err with the actual exit error of the process.
err = &exec.ExitError{ProcessState: command.ProcessState}
}
klog.Errorf("Mount failed: %v\nMounting command: %s\nMounting arguments: %s\nOutput: %s\n", err, mountCmd, mountArgsLogStr, string(output))
return fmt.Errorf("mount failed: %v\nMounting command: %s\nMounting arguments: %s\nOutput: %s",
err, mountCmd, mountArgsLogStr, string(output))
@ -267,6 +277,14 @@ func (mounter *Mounter) Unmount(target string) error {
command := exec.Command("umount", target)
output, err := command.CombinedOutput()
if err != nil {
if err.Error() == errNoChildProcesses {
if command.ProcessState.Success() {
// We don't consider errNoChildProcesses an error if the process itself succeeded (see - k/k issue #103753).
return nil
}
// Rewrite err with the actual exit error of the process.
err = &exec.ExitError{ProcessState: command.ProcessState}
}
return fmt.Errorf("unmount failed: %v\nUnmounting arguments: %s\nOutput: %s", err, target, string(output))
}
return nil