1#!/bin/bash 2# SPDX-License-Identifier: GPL-2.0+ 3# 4# Rerun a series of tests under KVM. 5# 6# Usage: kvm-again.sh /path/to/old/run [ options ] 7# 8# Copyright (C) 2021 Facebook, Inc. 9# 10# Authors: Paul E. McKenney <paulmck@kernel.org> 11 12scriptname=$0 13args="$*" 14 15T=${TMPDIR-/tmp}/kvm-again.sh.$$ 16trap 'rm -rf $T' 0 17mkdir $T 18 19if ! test -d tools/testing/selftests/rcutorture/bin 20then 21 echo $scriptname must be run from top-level directory of kernel source tree. 22 exit 1 23fi 24 25oldrun=$1 26shift 27if ! test -d "$oldrun" 28then 29 echo "Usage: $scriptname /path/to/old/run [ options ]" 30 exit 1 31fi 32if ! cp "$oldrun/scenarios" $T/scenarios.oldrun 33then 34 # Later on, can reconstitute this from console.log files. 35 echo Prior run batches file does not exist: $oldrun/batches 36 exit 1 37fi 38 39if test -f "$oldrun/torture_suite" 40then 41 torture_suite="`cat $oldrun/torture_suite`" 42elif test -f "$oldrun/TORTURE_SUITE" 43then 44 torture_suite="`cat $oldrun/TORTURE_SUITE`" 45else 46 echo "Prior run torture_suite file does not exist: $oldrun/{torture_suite,TORTURE_SUITE}" 47 exit 1 48fi 49 50RCUTORTURE="`pwd`/tools/testing/selftests/rcutorture"; export RCUTORTURE 51PATH=${RCUTORTURE}/bin:$PATH; export PATH 52. functions.sh 53 54dryrun= 55dur= 56default_link="cp -R" 57rundir="`pwd`/tools/testing/selftests/rcutorture/res/`date +%Y.%m.%d-%H.%M.%S-again`" 58 59startdate="`date`" 60starttime="`get_starttime`" 61 62usage () { 63 echo "Usage: $scriptname $oldrun [ arguments ]:" 64 echo " --dryrun" 65 echo " --duration minutes | <seconds>s | <hours>h | <days>d" 66 echo " --link hard|soft|copy" 67 echo " --remote" 68 echo " --rundir /new/res/path" 69 exit 1 70} 71 72while test $# -gt 0 73do 74 case "$1" in 75 --dryrun) 76 dryrun=1 77 ;; 78 --duration) 79 checkarg --duration "(minutes)" $# "$2" '^[0-9][0-9]*\(s\|m\|h\|d\|\)$' '^error' 80 mult=60 81 if echo "$2" | grep -q 's$' 82 then 83 mult=1 84 elif echo "$2" | grep -q 'h$' 85 then 86 mult=3600 87 elif echo "$2" | grep -q 'd$' 88 then 89 mult=86400 90 fi 91 ts=`echo $2 | sed -e 's/[smhd]$//'` 92 dur=$(($ts*mult)) 93 shift 94 ;; 95 --link) 96 checkarg --link "hard|soft|copy" "$#" "$2" 'hard\|soft\|copy' '^--' 97 case "$2" in 98 copy) 99 arg_link="cp -R" 100 ;; 101 hard) 102 arg_link="cp -Rl" 103 ;; 104 soft) 105 arg_link="cp -Rs" 106 ;; 107 esac 108 shift 109 ;; 110 --remote) 111 arg_remote=1 112 default_link="cp -as" 113 ;; 114 --rundir) 115 checkarg --rundir "(absolute pathname)" "$#" "$2" '^/' '^error' 116 rundir=$2 117 if test -e "$rundir" 118 then 119 echo "--rundir $2: Already exists." 120 usage 121 fi 122 shift 123 ;; 124 *) 125 echo Unknown argument $1 126 usage 127 ;; 128 esac 129 shift 130done 131if test -z "$arg_link" 132then 133 arg_link="$default_link" 134fi 135 136echo ---- Re-run results directory: $rundir 137 138# Copy old run directory tree over and adjust. 139mkdir -p "`dirname "$rundir"`" 140if ! $arg_link "$oldrun" "$rundir" 141then 142 echo "Cannot copy from $oldrun to $rundir." 143 usage 144fi 145rm -f "$rundir"/*/{console.log,console.log.diags,qemu_pid,qemu-pid,qemu-retval,Warnings,kvm-test-1-run.sh.out,kvm-test-1-run-qemu.sh.out,vmlinux} "$rundir"/log 146touch "$rundir/log" 147echo $scriptname $args | tee -a "$rundir/log" 148echo $oldrun > "$rundir/re-run" 149if ! test -d "$rundir/../../bin" 150then 151 $arg_link "$oldrun/../../bin" "$rundir/../.." 152fi 153for i in $rundir/*/qemu-cmd 154do 155 cp "$i" $T 156 qemu_cmd_dir="`dirname "$i"`" 157 kernel_dir="`echo $qemu_cmd_dir | sed -e 's/\.[0-9]\+$//'`" 158 jitter_dir="`dirname "$kernel_dir"`" 159 kvm-transform.sh "$kernel_dir/bzImage" "$qemu_cmd_dir/console.log" "$jitter_dir" $dur < $T/qemu-cmd > $i 160 if test -n "$arg_remote" 161 then 162 echo "# TORTURE_KCONFIG_GDB_ARG=''" >> $i 163 fi 164done 165 166# Extract settings from the last qemu-cmd file transformed above. 167grep '^#' $i | sed -e 's/^# //' > $T/qemu-cmd-settings 168. $T/qemu-cmd-settings 169 170grep -v '^#' $T/scenarios.oldrun | awk ' 171{ 172 curbatch = ""; 173 for (i = 2; i <= NF; i++) 174 curbatch = curbatch " " $i; 175 print "kvm-test-1-run-batch.sh" curbatch; 176}' > $T/runbatches.sh 177 178if test -n "$dryrun" 179then 180 echo ---- Dryrun complete, directory: $rundir | tee -a "$rundir/log" 181else 182 ( cd "$rundir"; sh $T/runbatches.sh ) | tee -a "$rundir/log" 183 kvm-end-run-stats.sh "$rundir" "$starttime" 184fi 185