tools/testing/selftests/rcutorture/bin/kvm.sh

   1 #!/bin/bash
   2 # SPDX-License-Identifier: GPL-2.0+
   3 #
   4 # Run a series of tests under KVM.  By default, this series is specified
   5 # by the relevant CFLIST file, but can be overridden by the --configs
   6 # command-line argument.
   7 #
   8 # Usage: kvm.sh [ options ]
   9 #
  10 # Copyright (C) IBM Corporation, 2011
  11 #
  12 # Authors: Paul E. McKenney <paulmck@linux.ibm.com>
  13
  14 scriptname=$0
  15 args="$*"
  16
  17 T=${TMPDIR-/tmp}/kvm.sh.$$
  18 trap 'rm -rf $T' 0
  19 mkdir $T
  20
  21 cd `dirname $scriptname`/../../../../../
  22
  23 # This script knows only English.
  24 LANG=en_US.UTF-8; export LANG
  25
  26 dur=$((30*60))
  27 dryrun=""
  28 RCUTORTURE="`pwd`/tools/testing/selftests/rcutorture"; export RCUTORTURE
  29 PATH=${RCUTORTURE}/bin:$PATH; export PATH
  30 . functions.sh
  31
  32 TORTURE_ALLOTED_CPUS="`identify_qemu_vcpus`"
  33 TORTURE_DEFCONFIG=defconfig
  34 TORTURE_BOOT_IMAGE=""
  35 TORTURE_BUILDONLY=
  36 TORTURE_INITRD="$RCUTORTURE/initrd"; export TORTURE_INITRD
  37 TORTURE_KCONFIG_ARG=""
  38 TORTURE_KCONFIG_GDB_ARG=""
  39 TORTURE_BOOT_GDB_ARG=""
  40 TORTURE_QEMU_GDB_ARG=""
  41 TORTURE_JITTER_START=""
  42 TORTURE_JITTER_STOP=""
  43 TORTURE_KCONFIG_KASAN_ARG=""
  44 TORTURE_KCONFIG_KCSAN_ARG=""
  45 TORTURE_KMAKE_ARG=""
  46 TORTURE_QEMU_MEM=512
  47 torture_qemu_mem_default=1
  48 TORTURE_REMOTE=
  49 TORTURE_SHUTDOWN_GRACE=180
  50 TORTURE_SUITE=rcu
  51 TORTURE_MOD=rcutorture
  52 TORTURE_TRUST_MAKE=""
  53 resdir=""
  54 configs=""
  55 cpus=0
  56 ds=`date +%Y.%m.%d-%H.%M.%S`
  57 jitter="-1"
  58
  59 startdate="`date`"
  60 starttime="`get_starttime`"
  61
  62 usage () {
  63         echo "Usage: $scriptname optional arguments:"
  64         echo "       --allcpus"
  65         echo "       --bootargs kernel-boot-arguments"
  66         echo "       --bootimage relative-path-to-kernel-boot-image"
  67         echo "       --buildonly"
  68         echo "       --configs \"config-file list w/ repeat factor (3*TINY01)\""
  69         echo "       --cpus N"
  70         echo "       --datestamp string"
  71         echo "       --defconfig string"
  72         echo "       --dryrun batches|scenarios|sched|script"
  73         echo "       --duration minutes | <seconds>s | <hours>h | <days>d"
  74         echo "       --gdb"
  75         echo "       --help"
  76         echo "       --interactive"
  77         echo "       --jitter N [ maxsleep (us) [ maxspin (us) ] ]"
  78         echo "       --kasan"
  79         echo "       --kconfig Kconfig-options"
  80         echo "       --kcsan"
  81         echo "       --kmake-arg kernel-make-arguments"
  82         echo "       --mac nn:nn:nn:nn:nn:nn"
  83         echo "       --memory megabytes|nnnG"
  84         echo "       --no-initrd"
  85         echo "       --qemu-args qemu-arguments"
  86         echo "       --qemu-cmd qemu-system-..."
  87         echo "       --remote"
  88         echo "       --results absolute-pathname"
  89         echo "       --shutdown-grace seconds"
  90         echo "       --torture lock|rcu|rcuscale|refscale|scf|X*"
  91         echo "       --trust-make"
  92         exit 1
  93 }
  94
  95 while test $# -gt 0
  96 do
  97         case "$1" in
  98         --allcpus)
  99                 cpus=$TORTURE_ALLOTED_CPUS
 100                 max_cpus=$TORTURE_ALLOTED_CPUS
 101                 ;;
 102         --bootargs|--bootarg)
 103                 checkarg --bootargs "(list of kernel boot arguments)" "$#" "$2" '.*' '^--'
 104                 TORTURE_BOOTARGS="$TORTURE_BOOTARGS $2"
 105                 shift
 106                 ;;
 107         --bootimage)
 108                 checkarg --bootimage "(relative path to kernel boot image)" "$#" "$2" '[a-zA-Z0-9][a-zA-Z0-9_]*' '^--'
 109                 TORTURE_BOOT_IMAGE="$2"
 110                 shift
 111                 ;;
 112         --buildonly|--build-only)
 113                 TORTURE_BUILDONLY=1
 114                 ;;
 115         --configs|--config)
 116                 checkarg --configs "(list of config files)" "$#" "$2" '^[^/.a-z]\+$' '^--'
 117                 configs="$configs $2"
 118                 shift
 119                 ;;
 120         --cpus)
 121                 checkarg --cpus "(number)" "$#" "$2" '^[0-9]*$' '^--'
 122                 cpus=$2
 123                 TORTURE_ALLOTED_CPUS="$2"
 124                 if test -z "$TORTURE_REMOTE"
 125                 then
 126                         max_cpus="`identify_qemu_vcpus`"
 127                         if test "$TORTURE_ALLOTED_CPUS" -gt "$max_cpus"
 128                         then
 129                                 TORTURE_ALLOTED_CPUS=$max_cpus
 130                         fi
 131                 fi
 132                 shift
 133                 ;;
 134         --datestamp)
 135                 checkarg --datestamp "(relative pathname)" "$#" "$2" '^[a-zA-Z0-9._/-]*$' '^--'
 136                 ds=$2
 137                 shift
 138                 ;;
 139         --defconfig)
 140                 checkarg --defconfig "defconfigtype" "$#" "$2" '^[^/][^/]*$' '^--'
 141                 TORTURE_DEFCONFIG=$2
 142                 shift
 143                 ;;
 144         --dryrun)
 145                 checkarg --dryrun "batches|sched|script" $# "$2" 'batches\|scenarios\|sched\|script' '^--'
 146                 dryrun=$2
 147                 shift
 148                 ;;
 149         --duration)
 150                 checkarg --duration "(minutes)" $# "$2" '^[0-9][0-9]*\(s\|m\|h\|d\|\)$' '^error'
 151                 mult=60
 152                 if echo "$2" | grep -q 's$'
 153                 then
 154                         mult=1
 155                 elif echo "$2" | grep -q 'h$'
 156                 then
 157                         mult=3600
 158                 elif echo "$2" | grep -q 'd$'
 159                 then
 160                         mult=86400
 161                 fi
 162                 ts=`echo $2 | sed -e 's/[smhd]$//'`
 163                 dur=$(($ts*mult))
 164                 shift
 165                 ;;
 166         --gdb)
 167                 TORTURE_KCONFIG_GDB_ARG="CONFIG_DEBUG_INFO=y"; export TORTURE_KCONFIG_GDB_ARG
 168                 TORTURE_BOOT_GDB_ARG="nokaslr"; export TORTURE_BOOT_GDB_ARG
 169                 TORTURE_QEMU_GDB_ARG="-s -S"; export TORTURE_QEMU_GDB_ARG
 170                 ;;
 171         --help|-h)
 172                 usage
 173                 ;;
 174         --interactive)
 175                 TORTURE_QEMU_INTERACTIVE=1; export TORTURE_QEMU_INTERACTIVE
 176                 ;;
 177         --jitter)
 178                 checkarg --jitter "(# threads [ sleep [ spin ] ])" $# "$2" '^-\{,1\}[0-9]\+\( \+[0-9]\+\)\{,2\} *$' '^error$'
 179                 jitter="$2"
 180                 shift
 181                 ;;
 182         --kasan)
 183                 TORTURE_KCONFIG_KASAN_ARG="CONFIG_DEBUG_INFO=y CONFIG_KASAN=y"; export TORTURE_KCONFIG_KASAN_ARG
 184                 if test -n "$torture_qemu_mem_default"
 185                 then
 186                         TORTURE_QEMU_MEM=2G
 187                 fi
 188                 ;;
 189         --kconfig|--kconfigs)
 190                 checkarg --kconfig "(Kconfig options)" $# "$2" '^CONFIG_[A-Z0-9_]\+=\([ynm]\|[0-9]\+\)\( CONFIG_[A-Z0-9_]\+=\([ynm]\|[0-9]\+\)\)*$' '^error$'
 191                 TORTURE_KCONFIG_ARG="`echo "$TORTURE_KCONFIG_ARG $2" | sed -e 's/^ *//' -e 's/ *$//'`"
 192                 shift
 193                 ;;
 194         --kcsan)
 195                 TORTURE_KCONFIG_KCSAN_ARG="CONFIG_DEBUG_INFO=y CONFIG_KCSAN=y CONFIG_KCSAN_STRICT=y CONFIG_KCSAN_REPORT_ONCE_IN_MS=100000 CONFIG_KCSAN_VERBOSE=y CONFIG_DEBUG_LOCK_ALLOC=y CONFIG_PROVE_LOCKING=y"; export TORTURE_KCONFIG_KCSAN_ARG
 196                 ;;
 197         --kmake-arg|--kmake-args)
 198                 checkarg --kmake-arg "(kernel make arguments)" $# "$2" '.*' '^error$'
 199                 TORTURE_KMAKE_ARG="`echo "$TORTURE_KMAKE_ARG $2" | sed -e 's/^ *//' -e 's/ *$//'`"
 200                 shift
 201                 ;;
 202         --mac)
 203                 checkarg --mac "(MAC address)" $# "$2" '^\([0-9a-fA-F]\{2\}:\)\{5\}[0-9a-fA-F]\{2\}$' error
 204                 TORTURE_QEMU_MAC=$2
 205                 shift
 206                 ;;
 207         --memory)
 208                 checkarg --memory "(memory size)" $# "$2" '^[0-9]\+[MG]\?$' error
 209                 TORTURE_QEMU_MEM=$2
 210                 torture_qemu_mem_default=
 211                 shift
 212                 ;;
 213         --no-initrd)
 214                 TORTURE_INITRD=""; export TORTURE_INITRD
 215                 ;;
 216         --qemu-args|--qemu-arg)
 217                 checkarg --qemu-args "(qemu arguments)" $# "$2" '^-' '^error'
 218                 TORTURE_QEMU_ARG="`echo "$TORTURE_QEMU_ARG $2" | sed -e 's/^ *//' -e 's/ *$//'`"
 219                 shift
 220                 ;;
 221         --qemu-cmd)
 222                 checkarg --qemu-cmd "(qemu-system-...)" $# "$2" 'qemu-system-' '^--'
 223                 TORTURE_QEMU_CMD="$2"
 224                 shift
 225                 ;;
 226         --remote)
 227                 TORTURE_REMOTE=1
 228                 ;;
 229         --results)
 230                 checkarg --results "(absolute pathname)" "$#" "$2" '^/' '^error'
 231                 resdir=$2
 232                 shift
 233                 ;;
 234         --shutdown-grace)
 235                 checkarg --shutdown-grace "(seconds)" "$#" "$2" '^[0-9]*$' '^error'
 236                 TORTURE_SHUTDOWN_GRACE=$2
 237                 shift
 238                 ;;
 239         --torture)
 240                 checkarg --torture "(suite name)" "$#" "$2" '^\(lock\|rcu\|rcuscale\|refscale\|scf\|X.*\)$' '^--'
 241                 TORTURE_SUITE=$2
 242                 TORTURE_MOD="`echo $TORTURE_SUITE | sed -e 's/^\(lock\|rcu\|scf\)$/\1torture/'`"
 243                 shift
 244                 if test "$TORTURE_SUITE" = rcuscale || test "$TORTURE_SUITE" = refscale
 245                 then
 246                         # If you really want jitter for refscale or
 247                         # rcuscale, specify it after specifying the rcuscale
 248                         # or the refscale.  (But why jitter in these cases?)
 249                         jitter=0
 250                 fi
 251                 ;;
 252         --trust-make)
 253                 TORTURE_TRUST_MAKE="y"
 254                 ;;
 255         *)
 256                 echo Unknown argument $1
 257                 usage
 258                 ;;
 259         esac
 260         shift
 261 done
 262
 263 if test -n "$dryrun" || test -z "$TORTURE_INITRD" || tools/testing/selftests/rcutorture/bin/mkinitrd.sh
 264 then
 265         :
 266 else
 267         echo No initrd and unable to create one, aborting test >&2
 268         exit 1
 269 fi
 270
 271 CONFIGFRAG=${RCUTORTURE}/configs/${TORTURE_SUITE}; export CONFIGFRAG
 272
 273 defaultconfigs="`tr '\012' ' ' < $CONFIGFRAG/CFLIST`"
 274 if test -z "$configs"
 275 then
 276         configs=$defaultconfigs
 277 fi
 278
 279 if test -z "$resdir"
 280 then
 281         resdir=$RCUTORTURE/res
 282 fi
 283
 284 # Create a file of test-name/#cpus pairs, sorted by decreasing #cpus.
 285 configs_derep=
 286 for CF in $configs
 287 do
 288         case $CF in
 289         [0-9]\**|[0-9][0-9]\**|[0-9][0-9][0-9]\**|[0-9][0-9][0-9][0-9]\**)
 290                 config_reps=`echo $CF | sed -e 's/\*.*$//'`
 291                 CF1=`echo $CF | sed -e 's/^[^*]*\*//'`
 292                 ;;
 293         *)
 294                 config_reps=1
 295                 CF1=$CF
 296                 ;;
 297         esac
 298         for ((cur_rep=0;cur_rep<$config_reps;cur_rep++))
 299         do
 300                 configs_derep="$configs_derep $CF1"
 301         done
 302 done
 303 touch $T/cfgcpu
 304 configs_derep="`echo $configs_derep | sed -e "s/\<CFLIST\>/$defaultconfigs/g"`"
 305 if test -n "$TORTURE_KCONFIG_GDB_ARG"
 306 then
 307         if test "`echo $configs_derep | wc -w`" -gt 1
 308         then
 309                 echo "The --config list is: $configs_derep."
 310                 echo "Only one --config permitted with --gdb, terminating."
 311                 exit 1
 312         fi
 313 fi
 314 echo 'BEGIN {' > $T/cfgcpu.awk
 315 for CF1 in `echo $configs_derep | tr -s ' ' '\012' | sort -u`
 316 do
 317         if test -f "$CONFIGFRAG/$CF1"
 318         then
 319                 if echo "$TORTURE_KCONFIG_ARG" | grep -q '\<CONFIG_NR_CPUS='
 320                 then
 321                         echo "$TORTURE_KCONFIG_ARG" | tr -s ' ' | tr ' ' '\012' > $T/KCONFIG_ARG
 322                         cpu_count=`configNR_CPUS.sh $T/KCONFIG_ARG`
 323                 else
 324                         cpu_count=`configNR_CPUS.sh $CONFIGFRAG/$CF1`
 325                 fi
 326                 cpu_count=`configfrag_boot_cpus "$TORTURE_BOOTARGS" "$CONFIGFRAG/$CF1" "$cpu_count"`
 327                 cpu_count=`configfrag_boot_maxcpus "$TORTURE_BOOTARGS" "$CONFIGFRAG/$CF1" "$cpu_count"`
 328                 echo 'scenariocpu["'"$CF1"'"] = '"$cpu_count"';' >> $T/cfgcpu.awk
 329         else
 330                 echo "The --configs file $CF1 does not exist, terminating."
 331                 exit 1
 332         fi
 333 done
 334 cat << '___EOF___' >> $T/cfgcpu.awk
 335 }
 336 {
 337         for (i = 1; i <= NF; i++)
 338                 print $i, scenariocpu[$i];
 339 }
 340 ___EOF___
 341 echo $configs_derep | awk -f $T/cfgcpu.awk > $T/cfgcpu
 342 sort -k2nr $T/cfgcpu -T="$T" > $T/cfgcpu.sort
 343
 344 # Use a greedy bin-packing algorithm, sorting the list accordingly.
 345 awk < $T/cfgcpu.sort > $T/cfgcpu.pack -v ncpus=$cpus '
 346 BEGIN {
 347         njobs = 0;
 348 }
 349
 350 {
 351         # Read file of tests and corresponding required numbers of CPUs.
 352         cf[njobs] = $1;
 353         cpus[njobs] = $2;
 354         njobs++;
 355 }
 356
 357 END {
 358         batch = 0;
 359         nc = -1;
 360
 361         # Each pass through the following loop creates on test batch that
 362         # can be executed concurrently given ncpus.  Note that a given test
 363         # that requires more than the available CPUs will run in its own
 364         # batch.  Such tests just have to make do with what is available.
 365         while (nc != ncpus) {
 366                 batch++;
 367                 nc = ncpus;
 368
 369                 # Each pass through the following loop considers one
 370                 # test for inclusion in the current batch.
 371                 for (i = 0; i < njobs; i++) {
 372                         if (done[i])
 373                                 continue; # Already part of a batch.
 374                         if (nc >= cpus[i] || nc == ncpus) {
 375
 376                                 # This test fits into the current batch.
 377                                 done[i] = batch;
 378                                 nc -= cpus[i];
 379                                 if (nc <= 0)
 380                                         break; # Too-big test in its own batch.
 381                         }
 382                 }
 383         }
 384
 385         # Dump out the tests in batch order.
 386         for (b = 1; b <= batch; b++)
 387                 for (i = 0; i < njobs; i++)
 388                         if (done[i] == b)
 389                                 print cf[i], cpus[i];
 390 }'
 391
 392 # Generate a script to execute the tests in appropriate batches.
 393 cat << ___EOF___ > $T/script
 394 CONFIGFRAG="$CONFIGFRAG"; export CONFIGFRAG
 395 RCUTORTURE="$RCUTORTURE"; export RCUTORTURE
 396 PATH="$PATH"; export PATH
 397 TORTURE_ALLOTED_CPUS="$TORTURE_ALLOTED_CPUS"; export TORTURE_ALLOTED_CPUS
 398 TORTURE_BOOT_IMAGE="$TORTURE_BOOT_IMAGE"; export TORTURE_BOOT_IMAGE
 399 TORTURE_BUILDONLY="$TORTURE_BUILDONLY"; export TORTURE_BUILDONLY
 400 TORTURE_DEFCONFIG="$TORTURE_DEFCONFIG"; export TORTURE_DEFCONFIG
 401 TORTURE_INITRD="$TORTURE_INITRD"; export TORTURE_INITRD
 402 TORTURE_KCONFIG_ARG="$TORTURE_KCONFIG_ARG"; export TORTURE_KCONFIG_ARG
 403 TORTURE_KCONFIG_GDB_ARG="$TORTURE_KCONFIG_GDB_ARG"; export TORTURE_KCONFIG_GDB_ARG
 404 TORTURE_BOOT_GDB_ARG="$TORTURE_BOOT_GDB_ARG"; export TORTURE_BOOT_GDB_ARG
 405 TORTURE_QEMU_GDB_ARG="$TORTURE_QEMU_GDB_ARG"; export TORTURE_QEMU_GDB_ARG
 406 TORTURE_KCONFIG_KASAN_ARG="$TORTURE_KCONFIG_KASAN_ARG"; export TORTURE_KCONFIG_KASAN_ARG
 407 TORTURE_KCONFIG_KCSAN_ARG="$TORTURE_KCONFIG_KCSAN_ARG"; export TORTURE_KCONFIG_KCSAN_ARG
 408 TORTURE_KMAKE_ARG="$TORTURE_KMAKE_ARG"; export TORTURE_KMAKE_ARG
 409 TORTURE_MOD="$TORTURE_MOD"; export TORTURE_MOD
 410 TORTURE_QEMU_CMD="$TORTURE_QEMU_CMD"; export TORTURE_QEMU_CMD
 411 TORTURE_QEMU_INTERACTIVE="$TORTURE_QEMU_INTERACTIVE"; export TORTURE_QEMU_INTERACTIVE
 412 TORTURE_QEMU_MAC="$TORTURE_QEMU_MAC"; export TORTURE_QEMU_MAC
 413 TORTURE_QEMU_MEM="$TORTURE_QEMU_MEM"; export TORTURE_QEMU_MEM
 414 TORTURE_SHUTDOWN_GRACE="$TORTURE_SHUTDOWN_GRACE"; export TORTURE_SHUTDOWN_GRACE
 415 TORTURE_SUITE="$TORTURE_SUITE"; export TORTURE_SUITE
 416 TORTURE_TRUST_MAKE="$TORTURE_TRUST_MAKE"; export TORTURE_TRUST_MAKE
 417 if ! test -e $resdir
 418 then
 419         mkdir -p "$resdir" || :
 420 fi
 421 mkdir -p $resdir/$ds
 422 TORTURE_RESDIR="$resdir/$ds"; export TORTURE_RESDIR
 423 TORTURE_STOPFILE="$resdir/$ds/STOP.1"; export TORTURE_STOPFILE
 424 echo Results directory: $resdir/$ds
 425 echo $scriptname $args
 426 touch $resdir/$ds/log
 427 echo $scriptname $args >> $resdir/$ds/log
 428 echo ${TORTURE_SUITE} > $resdir/$ds/torture_suite
 429 echo Build directory: `pwd` > $resdir/$ds/testid.txt
 430 if test -d .git
 431 then
 432         echo Current commit: `git rev-parse HEAD` >> $resdir/$ds/testid.txt
 433         echo >> $resdir/$ds/testid.txt
 434         echo ' ---' Output of "'"git status"'": >> $resdir/$ds/testid.txt
 435         git status >> $resdir/$ds/testid.txt
 436         echo >> $resdir/$ds/testid.txt
 437         echo >> $resdir/$ds/testid.txt
 438         echo ' ---' Output of "'"git diff HEAD"'": >> $resdir/$ds/testid.txt
 439         git diff HEAD >> $resdir/$ds/testid.txt
 440 fi
 441 ___EOF___
 442 kvm-assign-cpus.sh /sys/devices/system/node > $T/cpuarray.awk
 443 kvm-get-cpus-script.sh $T/cpuarray.awk $T/dumpbatches.awk
 444 cat << '___EOF___' >> $T/dumpbatches.awk
 445 BEGIN {
 446         i = 0;
 447 }
 448
 449 {
 450         cf[i] = $1;
 451         cpus[i] = $2;
 452         i++;
 453 }
 454
 455 # Dump out the scripting required to run one test batch.
 456 function dump(first, pastlast, batchnum,  affinitylist)
 457 {
 458         print "echo ----Start batch " batchnum ": `date` | tee -a " rd "log";
 459         print "needqemurun="
 460         jn=1
 461         njitter = 0;
 462         split(jitter, ja);
 463         if (ja[1] == -1 && ncpus == 0)
 464                 njitter = 1;
 465         else if (ja[1] == -1)
 466                 njitter = ncpus;
 467         else
 468                 njitter = ja[1];
 469         print "TORTURE_JITTER_START=\". jitterstart.sh " njitter " " rd " " dur " " ja[2] " " ja[3] "\"; export TORTURE_JITTER_START";
 470         print "TORTURE_JITTER_STOP=\". jitterstop.sh " rd " \"; export TORTURE_JITTER_STOP"
 471         for (j = first; j < pastlast; j++) {
 472                 cpusr[jn] = cpus[j];
 473                 if (cfrep[cf[j]] == "") {
 474                         cfr[jn] = cf[j];
 475                         cfrep[cf[j]] = 1;
 476                 } else {
 477                         cfrep[cf[j]]++;
 478                         cfr[jn] = cf[j] "." cfrep[cf[j]];
 479                 }
 480                 builddir=rd cfr[jn] "/build";
 481                 if (cpusr[jn] > ncpus && ncpus != 0)
 482                         ovf = "-ovf";
 483                 else
 484                         ovf = "";
 485                 print "echo ", cfr[jn], cpusr[jn] ovf ": Starting build. `date` | tee -a " rd "log";
 486                 print "mkdir " rd cfr[jn] " || :";
 487                 print "touch " builddir ".wait";
 488                 affinitylist = "";
 489                 if (gotcpus()) {
 490                         affinitylist = nextcpus(cpusr[jn]);
 491                 }
 492                 if (affinitylist ~ /^[0-9,-][0-9,-]*$/)
 493                         print "export TORTURE_AFFINITY=" affinitylist;
 494                 else
 495                         print "export TORTURE_AFFINITY=";
 496                 print "kvm-test-1-run.sh " CONFIGDIR cf[j], rd cfr[jn], dur " \"" TORTURE_QEMU_ARG "\" \"" TORTURE_BOOTARGS "\" > " rd cfr[jn]  "/kvm-test-1-run.sh.out 2>&1 &"
 497                 print "echo ", cfr[jn], cpusr[jn] ovf ": Waiting for build to complete. `date` | tee -a " rd "log";
 498                 print "while test -f " builddir ".wait"
 499                 print "do"
 500                 print "\tsleep 1"
 501                 print "done"
 502                 print "echo ", cfr[jn], cpusr[jn] ovf ": Build complete. `date` | tee -a " rd "log";
 503                 jn++;
 504         }
 505         print "runfiles="
 506         for (j = 1; j < jn; j++) {
 507                 builddir=rd cfr[j] "/build";
 508                 if (TORTURE_BUILDONLY)
 509                         print "rm -f " builddir ".ready"
 510                 else
 511                         print "mv " builddir ".ready " builddir ".run"
 512                         print "runfiles=\"$runfiles " builddir ".run\""
 513                 fi
 514                 print "if test -f \"" rd cfr[j] "/builtkernel\""
 515                 print "then"
 516                 print "\techo ----", cfr[j], cpusr[j] ovf ": Kernel present. `date` | tee -a " rd "log";
 517                 print "\tneedqemurun=1"
 518                 print "fi"
 519         }
 520         if (TORTURE_BUILDONLY && njitter != 0) {
 521                 njitter = 0;
 522                 print "echo Build-only run, so suppressing jitter | tee -a " rd "log"
 523         }
 524         if (TORTURE_BUILDONLY) {
 525                 print "needqemurun="
 526         }
 527         print "if test -n \"$needqemurun\""
 528         print "then"
 529         print "\techo ---- Starting kernels. `date` | tee -a " rd "log";
 530         print "\t$TORTURE_JITTER_START";
 531         print "\twhile ls $runfiles > /dev/null 2>&1"
 532         print "\tdo"
 533         print "\t\t:"
 534         print "\tdone"
 535         print "\t$TORTURE_JITTER_STOP";
 536         print "\techo ---- All kernel runs complete. `date` | tee -a " rd "log";
 537         print "else"
 538         print "\twait"
 539         print "\techo ---- No kernel runs. `date` | tee -a " rd "log";
 540         print "fi"
 541         for (j = 1; j < jn; j++) {
 542                 print "echo ----", cfr[j], cpusr[j] ovf ": Build/run results: | tee -a " rd "log";
 543                 print "cat " rd cfr[j]  "/kvm-test-1-run.sh.out | tee -a " rd "log";
 544         }
 545 }
 546
 547 END {
 548         njobs = i;
 549         nc = ncpus;
 550         first = 0;
 551         batchnum = 1;
 552
 553         # Each pass through the following loop considers one test.
 554         for (i = 0; i < njobs; i++) {
 555                 if (ncpus == 0) {
 556                         # Sequential test specified, each test its own batch.
 557                         dump(i, i + 1, batchnum);
 558                         first = i;
 559                         batchnum++;
 560                 } else if (nc < cpus[i] && i != 0) {
 561                         # Out of CPUs, dump out a batch.
 562                         dump(first, i, batchnum);
 563                         first = i;
 564                         nc = ncpus;
 565                         batchnum++;
 566                 }
 567                 # Account for the CPUs needed by the current test.
 568                 nc -= cpus[i];
 569         }
 570         # Dump the last batch.
 571         if (ncpus != 0)
 572                 dump(first, i, batchnum);
 573 }
 574 ___EOF___
 575 awk < $T/cfgcpu.pack \
 576         -v TORTURE_BUILDONLY="$TORTURE_BUILDONLY" \
 577         -v CONFIGDIR="$CONFIGFRAG/" \
 578         -v RCUTORTURE="$RCUTORTURE" \
 579         -v ncpus=$cpus \
 580         -v jitter="$jitter" \
 581         -v rd=$resdir/$ds/ \
 582         -v dur=$dur \
 583         -v TORTURE_QEMU_ARG="$TORTURE_QEMU_ARG" \
 584         -v TORTURE_BOOTARGS="$TORTURE_BOOTARGS" \
 585         -f $T/dumpbatches.awk >> $T/script
 586 echo kvm-end-run-stats.sh "$resdir/$ds" "$starttime" >> $T/script
 587
 588 # Extract the tests and their batches from the script.
 589 egrep 'Start batch|Starting build\.' $T/script | grep -v ">>" |
 590         sed -e 's/:.*$//' -e 's/^echo //' -e 's/-ovf//' |
 591         awk '
 592         /^----Start/ {
 593                 batchno = $3;
 594                 next;
 595         }
 596         {
 597                 print batchno, $1, $2
 598         }' > $T/batches
 599
 600 # As above, but one line per batch.
 601 grep -v '^#' $T/batches | awk '
 602 BEGIN {
 603         oldbatch = 1;
 604 }
 605
 606 {
 607         if (oldbatch != $1) {
 608                 print ++n ". " curbatch;
 609                 curbatch = "";
 610                 oldbatch = $1;
 611         }
 612         curbatch = curbatch " " $2;
 613 }
 614
 615 END {
 616         print ++n ". " curbatch;
 617 }' > $T/scenarios
 618
 619 if test "$dryrun" = script
 620 then
 621         cat $T/script
 622         exit 0
 623 elif test "$dryrun" = sched
 624 then
 625         # Extract the test run schedule from the script.
 626         egrep 'Start batch|Starting build\.' $T/script | grep -v ">>" |
 627                 sed -e 's/:.*$//' -e 's/^echo //'
 628         nbuilds="`grep 'Starting build\.' $T/script |
 629                   grep -v ">>" | sed -e 's/:.*$//' -e 's/^echo //' |
 630                   awk '{ print $1 }' | grep -v '\.' | wc -l`"
 631         echo Total number of builds: $nbuilds
 632         nbatches="`grep 'Start batch' $T/script | grep -v ">>" | wc -l`"
 633         echo Total number of batches: $nbatches
 634         exit 0
 635 elif test "$dryrun" = batches
 636 then
 637         cat $T/batches
 638         exit 0
 639 elif test "$dryrun" = scenarios
 640 then
 641         cat $T/scenarios
 642         exit 0
 643 else
 644         # Not a dryrun.  Record the batches and the number of CPUs, then run the script.
 645         bash $T/script
 646         ret=$?
 647         cp $T/batches $resdir/$ds/batches
 648         cp $T/scenarios $resdir/$ds/scenarios
 649         echo '#' cpus=$cpus >> $resdir/$ds/batches
 650         exit $ret
 651 fi
 652
 653 # Tracing: trace_event=rcu:rcu_grace_period,rcu:rcu_future_grace_period,rcu:rcu_grace_period_init,rcu:rcu_nocb_wake,rcu:rcu_preempt_task,rcu:rcu_unlock_preempted_task,rcu:rcu_quiescent_state_report,rcu:rcu_fqs,rcu:rcu_callback,rcu:rcu_kfree_callback,rcu:rcu_batch_start,rcu:rcu_invoke_callback,rcu:rcu_invoke_kfree_callback,rcu:rcu_batch_end,rcu:rcu_torture_read,rcu:rcu_barrier
 654 # Function-graph tracing: ftrace=function_graph ftrace_graph_filter=sched_setaffinity,migration_cpu_stop
 655 # Also --kconfig "CONFIG_FUNCTION_TRACER=y CONFIG_FUNCTION_GRAPH_TRACER=y"
 656 # Control buffer size: --bootargs trace_buf_size=3k
 657 # Get trace-buffer dumps on all oopses: --bootargs ftrace_dump_on_oops
 658 # Ditto, but dump only the oopsing CPU: --bootargs ftrace_dump_on_oops=orig_cpu
 659 # Heavy-handed way to also dump on warnings: --bootargs panic_on_warn