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       xfs_logprint [ options ] device-name
       xfs_logprint -f [ options ] filename


       xfs_logprint  prints  the  log  of  an XFS filesystem (see
       xfs(5)).  The device-name argument is the pathname of  the
       partition  or  logical  volume  containing the filesystem.
       The contents of the filesystem remain undisturbed.   There
       are two major modes of operation in xfs_logprint.

       One mode is better for filesystem operation debugging.  It
       is called the transactional view and  is  enabled  through
       the  -t  option.   The  transactional view prints only the
       portion of the log that pertains to  recovery.   In  other
       words,  it  prints  out  complete transactions between the
       tail and the head.  This view tries to display each trans­
       action  without  regard  to  how they are split across log

       The second mode starts printing out information  from  the
       beginning  of  the log.  Some error blocks might print out
       in the beginning because the last log record usually over­
       laps the oldest log record.  A message is printed when the
       physical end of the log is reached and  when  the  logical
       end of the log is reached.  A log record view is displayed
       one record at a time.  Transactions that span log  records
       may not be decoded fully.

       Common options are:

       -b     Extract and print buffer information.  Only used in
              transactional view.

       -D     Don't decode anything; just print data.

       -e     Exit when an error is found in the log.   Normally,
              xfs_logprint  tries to continue and unwind from bad
              logs.  However, sometimes it just dies in bad ways.
              Using this option prevents core dumps.

       -f     The log is a file.

       -l     External  log  device.   Only for those filesystems
              which use an external log.

       -i     Extract and print inode information.  Only used  in
              transactional view.

       -q     Extract  and print quota information.  Only used in
              transactional view.




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