summaryrefslogtreecommitdiff
path: root/tools/testing/selftests/rcutorture/bin/kvm-again.sh
blob: 0941f1ddab65818528495ab07ee12c4c9fd56e96 (plain)
1
2
3
4
5
6
7
8
9
10
11
12
13
14
15
16
17
18
19
20
21
22
23
24
25
26
27
28
29
30
31
32
33
34
35
36
37
38
39
40
41
42
43
44
45
46
47
48
49
50
51
52
53
54
55
56
57
58
59
60
61
62
63
64
65
66
67
68
69
70
71
72
73
74
75
76
77
78
79
80
81
82
83
84
85
86
87
88
89
90
91
92
93
94
95
96
97
98
99
100
101
102
103
104
105
106
107
108
109
110
111
112
113
114
115
116
117
118
119
120
121
122
123
124
125
126
127
128
129
130
131
132
133
134
135
136
137
138
139
140
141
142
143
144
145
146
147
148
149
150
151
152
153
154
155
156
157
158
159
160
161
162
163
164
165
166
167
168
169
170
171
172
173
174
175
176
177
178
179
180
181
182
183
184
#!/bin/bash
# SPDX-License-Identifier: GPL-2.0+
#
# Rerun a series of tests under KVM.
#
# Usage: kvm-again.sh /path/to/old/run [ options ]
#
# Copyright (C) 2021 Facebook, Inc.
#
# Authors: Paul E. McKenney <paulmck@kernel.org>

scriptname=$0
args="$*"

T=${TMPDIR-/tmp}/kvm-again.sh.$$
trap 'rm -rf $T' 0
mkdir $T

if ! test -d tools/testing/selftests/rcutorture/bin
then
	echo $scriptname must be run from top-level directory of kernel source tree.
	exit 1
fi

oldrun=$1
shift
if ! test -d "$oldrun"
then
	echo "Usage: $scriptname /path/to/old/run [ options ]"
	exit 1
fi
if ! cp "$oldrun/scenarios" $T/scenarios.oldrun
then
	# Later on, can reconstitute this from console.log files.
	echo Prior run batches file does not exist: $oldrun/batches
	exit 1
fi

if test -f "$oldrun/torture_suite"
then
	torture_suite="`cat $oldrun/torture_suite`"
elif test -f "$oldrun/TORTURE_SUITE"
then
	torture_suite="`cat $oldrun/TORTURE_SUITE`"
else
	echo "Prior run torture_suite file does not exist: $oldrun/{torture_suite,TORTURE_SUITE}"
	exit 1
fi

RCUTORTURE="`pwd`/tools/testing/selftests/rcutorture"; export RCUTORTURE
PATH=${RCUTORTURE}/bin:$PATH; export PATH
. functions.sh

dryrun=
dur=
default_link="cp -R"
rundir="`pwd`/tools/testing/selftests/rcutorture/res/`date +%Y.%m.%d-%H.%M.%S-again`"

startdate="`date`"
starttime="`get_starttime`"

usage () {
	echo "Usage: $scriptname $oldrun [ arguments ]:"
	echo "       --dryrun"
	echo "       --duration minutes | <seconds>s | <hours>h | <days>d"
	echo "       --link hard|soft|copy"
	echo "       --remote"
	echo "       --rundir /new/res/path"
	exit 1
}

while test $# -gt 0
do
	case "$1" in
	--dryrun)
		dryrun=1
		;;
	--duration)
		checkarg --duration "(minutes)" $# "$2" '^[0-9][0-9]*\(s\|m\|h\|d\|\)$' '^error'
		mult=60
		if echo "$2" | grep -q 's$'
		then
			mult=1
		elif echo "$2" | grep -q 'h$'
		then
			mult=3600
		elif echo "$2" | grep -q 'd$'
		then
			mult=86400
		fi
		ts=`echo $2 | sed -e 's/[smhd]$//'`
		dur=$(($ts*mult))
		shift
		;;
	--link)
		checkarg --link "hard|soft|copy" "$#" "$2" 'hard\|soft\|copy' '^--'
		case "$2" in
		copy)
			arg_link="cp -R"
			;;
		hard)
			arg_link="cp -Rl"
			;;
		soft)
			arg_link="cp -Rs"
			;;
		esac
		shift
		;;
	--remote)
		arg_remote=1
		default_link="cp -as"
		;;
	--rundir)
		checkarg --rundir "(absolute pathname)" "$#" "$2" '^/' '^error'
		rundir=$2
		if test -e "$rundir"
		then
			echo "--rundir $2: Already exists."
			usage
		fi
		shift
		;;
	*)
		echo Unknown argument $1
		usage
		;;
	esac
	shift
done
if test -z "$arg_link"
then
	arg_link="$default_link"
fi

echo ---- Re-run results directory: $rundir

# Copy old run directory tree over and adjust.
mkdir -p "`dirname "$rundir"`"
if ! $arg_link "$oldrun" "$rundir"
then
	echo "Cannot copy from $oldrun to $rundir."
	usage
fi
rm -f "$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} "$rundir"/log
touch "$rundir/log"
echo $scriptname $args | tee -a "$rundir/log"
echo $oldrun > "$rundir/re-run"
if ! test -d "$rundir/../../bin"
then
	$arg_link "$oldrun/../../bin" "$rundir/../.."
fi
for i in $rundir/*/qemu-cmd
do
	cp "$i" $T
	qemu_cmd_dir="`dirname "$i"`"
	kernel_dir="`echo $qemu_cmd_dir | sed -e 's/\.[0-9]\+$//'`"
	jitter_dir="`dirname "$kernel_dir"`"
	kvm-transform.sh "$kernel_dir/bzImage" "$qemu_cmd_dir/console.log" "$jitter_dir" $dur < $T/qemu-cmd > $i
	if test -n "$arg_remote"
	then
		echo "# TORTURE_KCONFIG_GDB_ARG=''" >> $i
	fi
done

# Extract settings from the last qemu-cmd file transformed above.
grep '^#' $i | sed -e 's/^# //' > $T/qemu-cmd-settings
. $T/qemu-cmd-settings

grep -v '^#' $T/scenarios.oldrun | awk '
{
	curbatch = "";
	for (i = 2; i <= NF; i++)
		curbatch = curbatch " " $i;
	print "kvm-test-1-run-batch.sh" curbatch;
}' > $T/runbatches.sh

if test -n "$dryrun"
then
	echo ---- Dryrun complete, directory: $rundir | tee -a "$rundir/log"
else
	( cd "$rundir"; sh $T/runbatches.sh ) | tee -a "$rundir/log"
	kvm-end-run-stats.sh "$rundir" "$starttime"
fi