[systemd-bugs] [Bug 56459] New: journalctl doesn't follow empty logs in verbose modes but exits with an error message

[bugzilla-daemon at freedesktop.org]

https://bugs.freedesktop.org/show_bug.cgi?id=56459

          Priority: medium
            Bug ID: 56459
          Assignee: systemd-bugs at lists.freedesktop.org
           Summary: journalctl doesn't follow empty logs in verbose modes
                    but exits with an error message
        QA Contact: systemd-bugs at lists.freedesktop.org
          Severity: normal
    Classification: Unclassified
                OS: Linux (All)
          Reporter: felix.spammagnet at nurfuerspam.de
          Hardware: x86-64 (AMD64)
            Status: NEW
           Version: unspecified
         Component: general
           Product: systemd

Hello,

I'm running systemd-195 on ArchLinux. When starting journalctl in a verbose
follow mode on an empty log it immediately exits with an error message:

$ journalctl -o verbose -f _EXE=/quiet/binary
-- Logs begin at Wed, 2012-10-24 06:32:32 CEST. --
Failed to get realtime timestamp: Cannot assign requested address

Since the given binary could be a daemon that's currently not running but is
going to be started later, I would expect journalctl to wait for messages to
appear (as specified in the manual).

Note that the expected behaviour is achieved in the "short" and
"short-monotonic" output modes. Using another output mode results in the above
error message.

Cheers,
  Felix

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