tests/zfs-tests/callbacks/zfs_dmesg.ksh

   1 #!/bin/ksh -p
   2
   3 #
   4 # This file and its contents are supplied under the terms of the
   5 # Common Development and Distribution License ("CDDL"), version 1.0.
   6 # You may only use this file in accordance with the terms of version
   7 # 1.0 of the CDDL.
   8 #
   9 # A full copy of the text of the CDDL should have accompanied this
  10 # source.  A copy of the CDDL is also available via the Internet at
  11 # http://www.illumos.org/license/CDDL.
  12 #
  13
  14 #
  15 # Copyright (c) 2016 by Delphix. All rights reserved.
  16 # Copyright (c) 2017 Lawrence Livermore National Security, LLC.
  17 #
  18
  19 # $1: number of lines to output (default: 200)
  20 typeset lines=${1:-200}
  21
  22 echo "================================================================="
  23 echo " Tailing last $lines lines of dmesg log"
  24 echo "================================================================="
  25
  26 # report and reset afterwards
  27 sudo dmesg -c | tail -n $lines
  28
  29 echo "================================================================="
  30 echo " End of dmesg log"
  31 echo "================================================================="