LVMS currently relies on https://github.com/openshift/lvm-operator/blob/main/internal/controllers/vgmanager/exec/exec.go#L84 to determine stdErr output, but this is not filled when using streaming output. We will need to adjust and add the error logging buffer when the close of a command fails.
    

4.16 release candidate up to 4.14, below stderr is also not logged but not because of the streaming of stdout, but because we ignore it completely
4.13.z and below are still affected but might be even harder to fix
    

100%, any failing lvm command is affected
    

    1. Configure LVMS with a deviceSelector for a broken device (e.g. a device with 0B)
    

observe the failure message is done only with an exit status but not the actual output
    

failure should indicate the stderr output in the status