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https://github.com/torvalds/linux
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torture: Add kvm-again.sh to rerun a previous torture-test
This commit adds a kvm-again.sh script that, given the results directory of a torture-test run, re-runs that test. This means that the kernels need not be rebuilt, but it also is a step towards running torture tests on remote systems. This commit also adds a kvm-test-1-run-batch.sh script that runs one batch out of the torture test. The idea is to copy a results directory tree to remote systems, then use kvm-test-1-run-batch.sh to run batches on these systems. Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
This commit is contained in:
Paul E. McKenney
parent
d6100d764c
commit
7cf86c0b62
171
tools/testing/selftests/rcutorture/bin/kvm-again.sh
Executable file
171
tools/testing/selftests/rcutorture/bin/kvm-again.sh
Executable file
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#!/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/batches" $T/batches.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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KVM="`pwd`/tools/testing/selftests/rcutorture"; export KVM
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PATH=${KVM}/bin:$PATH; export PATH
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. functions.sh
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dryrun=
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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 " --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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--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-retval,Warnings,kvm-test-1-run.sh.out,kvm-test-1-run-qemu.sh.out,vmlinux} "$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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kvm-transform.sh $kernel_dir/bzImage $qemu_cmd_dir/console.log < $T/qemu-cmd > $i
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echo "# TORTURE_KCONFIG_GDB_ARG=''" >> $i
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done
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grep -v '^#' $T/batches.oldrun | awk '
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BEGIN {
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oldbatch = 1;
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}
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{
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if (oldbatch != $1) {
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print "kvm-test-1-run-batch.sh" curbatch;
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curbatch = "";
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oldbatch = $1;
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}
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curbatch = curbatch " " $2;
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}
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END {
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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 )
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kcsan-collapse.sh "$rundir" | tee -a "$rundir/log"
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echo | tee -a "$rundir/log"
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echo ---- Results directory: $rundir | tee -a "$rundir/log"
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kvm-recheck.sh "$rundir" > $T/kvm-recheck.sh.out 2>&1
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ret=$?
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cat $T/kvm-recheck.sh.out | tee -a "$rundir/log"
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echo " --- Done at `date` (`get_starttime_duration $starttime`) exitcode $ret" | tee -a "$rundir/log"
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exit $ret
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fi
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67
tools/testing/selftests/rcutorture/bin/kvm-test-1-run-batch.sh
Executable file
67
tools/testing/selftests/rcutorture/bin/kvm-test-1-run-batch.sh
Executable file
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@ -0,0 +1,67 @@
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#!/bin/bash
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# SPDX-License-Identifier: GPL-2.0+
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#
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# Carry out a kvm-based run for the specified batch of scenarios, which
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# might have been built by --build-only kvm.sh run.
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#
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# Usage: kvm-test-1-run-batch.sh SCENARIO [ SCENARIO ... ]
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#
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# Each SCENARIO is the name of a directory in the current directory
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# containing a ready-to-run qemu-cmd file.
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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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T=${TMPDIR-/tmp}/kvm-test-1-run-batch.sh.$$
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trap 'rm -rf $T' 0
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mkdir $T
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echo ---- Running batch $*
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# Check arguments
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runfiles=
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for i in "$@"
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do
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if ! echo $i | grep -q '^[^/.a-z]\+\(\.[0-9]\+\)\?$'
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then
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echo Bad scenario name: \"$i\" 1>&2
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exit 1
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fi
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if ! test -d "$i"
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then
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echo Scenario name not a directory: \"$i\" 1>&2
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exit 2
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fi
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if ! test -f "$i/qemu-cmd"
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then
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echo Scenario lacks a command file: \"$i/qemu-cmd\" 1>&2
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exit 3
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fi
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rm -f $i/build.*
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touch $i/build.run
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runfiles="$runfiles $i/build.run"
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done
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# Extract settings from the qemu-cmd file.
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grep '^#' $1/qemu-cmd | sed -e 's/^# //' > $T/qemu-cmd-settings
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. $T/qemu-cmd-settings
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# Start up jitter, start each scenario, wait, end jitter.
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echo ---- System running test: `uname -a`
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echo ---- Starting kernels. `date` | tee -a log
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$TORTURE_JITTER_START
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for i in "$@"
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do
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echo ---- System running test: `uname -a` > $i/kvm-test-1-run-qemu.sh.out
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echo > $i/kvm-test-1-run-qemu.sh.out
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kvm-test-1-run-qemu.sh $i >> $i/kvm-test-1-run-qemu.sh.out 2>&1 &
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done
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for i in $runfiles
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do
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while ls $i > /dev/null 2>&1
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do
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:
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done
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done
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echo ---- All kernel runs complete. `date` | tee -a log
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$TORTURE_JITTER_STOP
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