Process is in sleep state but WCHAN shows - in Red Hat Enterpris Linux 8

Solution Unverified - Updated -

Issue

  • Some user processes' WCHANs show - though the processes are in sleep (S) state.

    # ps alx
    F   UID   PID  PPID PRI  NI    VSZ   RSS WCHAN  STAT TTY        TIME COMMAND
    [...]
    4     0   807     1  20   0 399784 28448 -      Ssl  ?          0:13 /usr/libexec/platform-python -Es /usr/sbin/tuned -l -P
    [...]
    4     0  1644     1  20   0  93048  9492 do_epo Ss   ?          0:00 /usr/lib/systemd/systemd --user
    [...]
    

Environment

  • Red Hat Enterprise Linux 8

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