222 lines · bash
1#!/bin/bash2# 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=$013args="$*"14 15T="`mktemp -d ${TMPDIR-/tmp}/kvm-again.sh.XXXXXX`"16trap 'rm -rf $T' 017 18if ! test -d tools/testing/selftests/rcutorture/bin19then20 echo $scriptname must be run from top-level directory of kernel source tree.21 exit 122fi23 24oldrun=$125shift26if ! test -d "$oldrun"27then28 echo "Usage: $scriptname /path/to/old/run [ options ]"29 exit 130fi31if ! cp "$oldrun/scenarios" $T/scenarios.oldrun32then33 # Later on, can reconstitute this from console.log files.34 echo Prior run batches file does not exist: $oldrun/batches35 exit 136fi37 38if test -f "$oldrun/torture_suite"39then40 torture_suite="`cat $oldrun/torture_suite`"41elif test -f "$oldrun/TORTURE_SUITE"42then43 torture_suite="`cat $oldrun/TORTURE_SUITE`"44else45 echo "Prior run torture_suite file does not exist: $oldrun/{torture_suite,TORTURE_SUITE}"46 exit 147fi48 49RCUTORTURE="`pwd`/tools/testing/selftests/rcutorture"; export RCUTORTURE50PATH=${RCUTORTURE}/bin:$PATH; export PATH51. functions.sh52 53bootargs=54dryrun=55dur=56default_link="cp -R"57resdir="`pwd`/tools/testing/selftests/rcutorture/res"58rundir="$resdir/`date +%Y.%m.%d-%H.%M.%S-again`"59got_datestamp=60got_rundir=61 62startdate="`date`"63starttime="`get_starttime`"64 65usage () {66 echo "Usage: $scriptname $oldrun [ arguments ]:"67 echo " --bootargs kernel-boot-arguments"68 echo " --datestamp string"69 echo " --dryrun"70 echo " --duration minutes | <seconds>s | <hours>h | <days>d"71 echo " --link hard|soft|copy"72 echo " --remote"73 echo " --rundir /new/res/path"74 echo "Command line: $scriptname $args"75 exit 176}77 78while test $# -gt 079do80 case "$1" in81 --bootargs|--bootarg)82 checkarg --bootargs "(list of kernel boot arguments)" "$#" "$2" '.*' '^--'83 bootargs="$bootargs $2"84 shift85 ;;86 --datestamp)87 checkarg --datestamp "(relative pathname)" "$#" "$2" '^[a-zA-Z0-9._/-]*$' '^--'88 if test -n "$got_rundir" || test -n "$got_datestamp"89 then90 echo Only one of --datestamp or --rundir may be specified91 usage92 fi93 got_datestamp=y94 ds=$295 rundir="$resdir/$ds"96 if test -e "$rundir"97 then98 echo "--datestamp $2: Already exists."99 usage100 fi101 shift102 ;;103 --dryrun)104 dryrun=1105 ;;106 --duration)107 checkarg --duration "(minutes)" $# "$2" '^[0-9][0-9]*\(s\|m\|h\|d\|\)$' '^error'108 mult=60109 if echo "$2" | grep -q 's$'110 then111 mult=1112 elif echo "$2" | grep -q 'h$'113 then114 mult=3600115 elif echo "$2" | grep -q 'd$'116 then117 mult=86400118 fi119 ts=`echo $2 | sed -e 's/[smhd]$//'`120 dur=$(($ts*mult))121 shift122 ;;123 --link)124 checkarg --link "hard|soft|copy" "$#" "$2" 'hard\|soft\|copy' '^--'125 case "$2" in126 copy)127 arg_link="cp -R"128 ;;129 hard)130 arg_link="cp -Rl"131 ;;132 soft)133 arg_link="cp -Rs"134 ;;135 esac136 shift137 ;;138 --remote)139 arg_remote=1140 default_link="cp -as"141 ;;142 --rundir)143 checkarg --rundir "(absolute pathname)" "$#" "$2" '^/' '^error'144 if test -n "$got_rundir" || test -n "$got_datestamp"145 then146 echo Only one of --datestamp or --rundir may be specified147 usage148 fi149 got_rundir=y150 rundir=$2151 if test -e "$rundir"152 then153 echo "--rundir $2: Already exists."154 usage155 fi156 shift157 ;;158 *)159 if test -n "$1"160 then161 echo Unknown argument $1162 usage163 fi164 ;;165 esac166 shift167done168if test -z "$arg_link"169then170 arg_link="$default_link"171fi172 173echo ---- Re-run results directory: $rundir174 175# Copy old run directory tree over and adjust.176mkdir -p "`dirname "$rundir"`"177if ! $arg_link "$oldrun" "$rundir"178then179 echo "Cannot copy from $oldrun to $rundir."180 usage181fi182rm -f "$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} "$rundir"/log183touch "$rundir/log"184echo $scriptname $args | tee -a "$rundir/log"185echo $oldrun > "$rundir/re-run"186if ! test -d "$rundir/../../bin"187then188 $arg_link "$oldrun/../../bin" "$rundir/../.."189fi190for i in $rundir/*/qemu-cmd191do192 cp "$i" $T193 qemu_cmd_dir="`dirname "$i"`"194 kernel_dir="`echo $qemu_cmd_dir | sed -e 's/\.[0-9]\+$//'`"195 jitter_dir="`dirname "$kernel_dir"`"196 kvm-transform.sh "$kernel_dir/bzImage" "$qemu_cmd_dir/console.log" "$jitter_dir" "$dur" "$bootargs" < $T/qemu-cmd > $i197 if test -n "$arg_remote"198 then199 echo "# TORTURE_KCONFIG_GDB_ARG=''" >> $i200 fi201done202 203# Extract settings from the last qemu-cmd file transformed above.204grep '^#' $i | sed -e 's/^# //' > $T/qemu-cmd-settings205. $T/qemu-cmd-settings206 207grep -v '^#' $T/scenarios.oldrun | awk '208{209 curbatch = "";210 for (i = 2; i <= NF; i++)211 curbatch = curbatch " " $i;212 print "kvm-test-1-run-batch.sh" curbatch;213}' > $T/runbatches.sh214 215if test -n "$dryrun"216then217 echo ---- Dryrun complete, directory: $rundir | tee -a "$rundir/log"218else219 ( cd "$rundir"; sh $T/runbatches.sh ) | tee -a "$rundir/log"220 kvm-end-run-stats.sh "$rundir" "$starttime"221fi222