185 lines
4.0 KiB
Bash
Executable File
185 lines
4.0 KiB
Bash
Executable File
#!/bin/bash
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# SPDX-License-Identifier: GPL-2.0+
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#
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# Rerun a series of tests under KVM.
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#
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# Usage: kvm-again.sh /path/to/old/run [ options ]
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#
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# Copyright (C) 2021 Facebook, Inc.
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#
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# Authors: Paul E. McKenney <paulmck@kernel.org>
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scriptname=$0
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args="$*"
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T=${TMPDIR-/tmp}/kvm-again.sh.$$
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trap 'rm -rf $T' 0
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mkdir $T
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if ! test -d tools/testing/selftests/rcutorture/bin
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then
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echo $scriptname must be run from top-level directory of kernel source tree.
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exit 1
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fi
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oldrun=$1
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shift
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if ! test -d "$oldrun"
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then
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echo "Usage: $scriptname /path/to/old/run [ options ]"
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exit 1
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fi
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if ! cp "$oldrun/scenarios" $T/scenarios.oldrun
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then
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# Later on, can reconstitute this from console.log files.
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echo Prior run batches file does not exist: $oldrun/batches
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exit 1
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fi
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if test -f "$oldrun/torture_suite"
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then
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torture_suite="`cat $oldrun/torture_suite`"
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elif test -f "$oldrun/TORTURE_SUITE"
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then
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torture_suite="`cat $oldrun/TORTURE_SUITE`"
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else
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echo "Prior run torture_suite file does not exist: $oldrun/{torture_suite,TORTURE_SUITE}"
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exit 1
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fi
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RCUTORTURE="`pwd`/tools/testing/selftests/rcutorture"; export RCUTORTURE
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PATH=${RCUTORTURE}/bin:$PATH; export PATH
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. functions.sh
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dryrun=
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dur=
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default_link="cp -R"
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rundir="`pwd`/tools/testing/selftests/rcutorture/res/`date +%Y.%m.%d-%H.%M.%S-again`"
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startdate="`date`"
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starttime="`get_starttime`"
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usage () {
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echo "Usage: $scriptname $oldrun [ arguments ]:"
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echo " --dryrun"
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echo " --duration minutes | <seconds>s | <hours>h | <days>d"
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echo " --link hard|soft|copy"
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echo " --remote"
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echo " --rundir /new/res/path"
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exit 1
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}
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while test $# -gt 0
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do
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case "$1" in
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--dryrun)
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dryrun=1
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;;
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--duration)
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checkarg --duration "(minutes)" $# "$2" '^[0-9][0-9]*\(s\|m\|h\|d\|\)$' '^error'
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mult=60
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if echo "$2" | grep -q 's$'
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then
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mult=1
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elif echo "$2" | grep -q 'h$'
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then
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mult=3600
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elif echo "$2" | grep -q 'd$'
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then
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mult=86400
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fi
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ts=`echo $2 | sed -e 's/[smhd]$//'`
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dur=$(($ts*mult))
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shift
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;;
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--link)
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checkarg --link "hard|soft|copy" "$#" "$2" 'hard\|soft\|copy' '^--'
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case "$2" in
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copy)
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arg_link="cp -R"
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;;
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hard)
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arg_link="cp -Rl"
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;;
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soft)
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arg_link="cp -Rs"
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;;
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esac
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shift
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;;
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--remote)
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arg_remote=1
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default_link="cp -as"
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;;
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--rundir)
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checkarg --rundir "(absolute pathname)" "$#" "$2" '^/' '^error'
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rundir=$2
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if test -e "$rundir"
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then
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echo "--rundir $2: Already exists."
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usage
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fi
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shift
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;;
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*)
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echo Unknown argument $1
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usage
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;;
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esac
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shift
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done
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if test -z "$arg_link"
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then
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arg_link="$default_link"
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fi
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echo ---- Re-run results directory: $rundir
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# Copy old run directory tree over and adjust.
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mkdir -p "`dirname "$rundir"`"
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if ! $arg_link "$oldrun" "$rundir"
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then
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echo "Cannot copy from $oldrun to $rundir."
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usage
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fi
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rm -f "$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} "$rundir"/log
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touch "$rundir/log"
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echo $scriptname $args | tee -a "$rundir/log"
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echo $oldrun > "$rundir/re-run"
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if ! test -d "$rundir/../../bin"
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then
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$arg_link "$oldrun/../../bin" "$rundir/../.."
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fi
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for i in $rundir/*/qemu-cmd
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do
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cp "$i" $T
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qemu_cmd_dir="`dirname "$i"`"
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kernel_dir="`echo $qemu_cmd_dir | sed -e 's/\.[0-9]\+$//'`"
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jitter_dir="`dirname "$kernel_dir"`"
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kvm-transform.sh "$kernel_dir/bzImage" "$qemu_cmd_dir/console.log" "$jitter_dir" $dur < $T/qemu-cmd > $i
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if test -n "$arg_remote"
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then
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echo "# TORTURE_KCONFIG_GDB_ARG=''" >> $i
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fi
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done
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# Extract settings from the last qemu-cmd file transformed above.
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grep '^#' $i | sed -e 's/^# //' > $T/qemu-cmd-settings
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. $T/qemu-cmd-settings
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grep -v '^#' $T/scenarios.oldrun | awk '
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{
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curbatch = "";
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for (i = 2; i <= NF; i++)
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curbatch = curbatch " " $i;
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print "kvm-test-1-run-batch.sh" curbatch;
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}' > $T/runbatches.sh
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if test -n "$dryrun"
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then
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echo ---- Dryrun complete, directory: $rundir | tee -a "$rundir/log"
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else
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( cd "$rundir"; sh $T/runbatches.sh ) | tee -a "$rundir/log"
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kvm-end-run-stats.sh "$rundir" "$starttime"
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fi
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