Command "df --direct" run on /root file system results into segfault

Solution Unverified - Updated -

Issue

  • Why df --direct /root command run as a normal user results into segfault?
  • The df command segfaults if it cannot resolve mount point of --direct argument. The same command works on RHEL6 and why does it fails on RHEL7 and RHEL8?

Environment

  • Red Hat Enterprise Linux 7
  • Red Hat Enterprise Linux 8

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