kvm.sh (19169B)
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 14scriptname=$0 15args="$*" 16 17T=${TMPDIR-/tmp}/kvm.sh.$$ 18trap 'rm -rf $T' 0 19mkdir $T 20 21cd `dirname $scriptname`/../../../../../ 22 23# This script knows only English. 24LANG=en_US.UTF-8; export LANG 25 26dur=$((30*60)) 27dryrun="" 28RCUTORTURE="`pwd`/tools/testing/selftests/rcutorture"; export RCUTORTURE 29PATH=${RCUTORTURE}/bin:$PATH; export PATH 30. functions.sh 31 32TORTURE_ALLOTED_CPUS="`identify_qemu_vcpus`" 33TORTURE_DEFCONFIG=defconfig 34TORTURE_BOOT_IMAGE="" 35TORTURE_BUILDONLY= 36TORTURE_INITRD="$RCUTORTURE/initrd"; export TORTURE_INITRD 37TORTURE_KCONFIG_ARG="" 38TORTURE_KCONFIG_GDB_ARG="" 39TORTURE_BOOT_GDB_ARG="" 40TORTURE_QEMU_GDB_ARG="" 41TORTURE_JITTER_START="" 42TORTURE_JITTER_STOP="" 43TORTURE_KCONFIG_KASAN_ARG="" 44TORTURE_KCONFIG_KCSAN_ARG="" 45TORTURE_KMAKE_ARG="" 46TORTURE_QEMU_MEM=512 47torture_qemu_mem_default=1 48TORTURE_REMOTE= 49TORTURE_SHUTDOWN_GRACE=180 50TORTURE_SUITE=rcu 51TORTURE_MOD=rcutorture 52TORTURE_TRUST_MAKE="" 53resdir="" 54configs="" 55cpus=0 56ds=`date +%Y.%m.%d-%H.%M.%S` 57jitter="-1" 58 59startdate="`date`" 60starttime="`get_starttime`" 61 62usage () { 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 95while test $# -gt 0 96do 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 $1 257 usage 258 ;; 259 esac 260 shift 261done 262 263if test -n "$dryrun" || test -z "$TORTURE_INITRD" || tools/testing/selftests/rcutorture/bin/mkinitrd.sh 264then 265 : 266else 267 echo No initrd and unable to create one, aborting test >&2 268 exit 1 269fi 270 271CONFIGFRAG=${RCUTORTURE}/configs/${TORTURE_SUITE}; export CONFIGFRAG 272 273defaultconfigs="`tr '\012' ' ' < $CONFIGFRAG/CFLIST`" 274if test -z "$configs" 275then 276 configs=$defaultconfigs 277fi 278 279if test -z "$resdir" 280then 281 resdir=$RCUTORTURE/res 282fi 283 284# Create a file of test-name/#cpus pairs, sorted by decreasing #cpus. 285configs_derep= 286for CF in $configs 287do 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 302done 303touch $T/cfgcpu 304configs_derep="`echo $configs_derep | sed -e "s/\<CFLIST\>/$defaultconfigs/g"`" 305if test -n "$TORTURE_KCONFIG_GDB_ARG" 306then 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 313fi 314echo 'BEGIN {' > $T/cfgcpu.awk 315for CF1 in `echo $configs_derep | tr -s ' ' '\012' | sort -u` 316do 317 if test -f "$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 333done 334cat << '___EOF___' >> $T/cfgcpu.awk 335} 336{ 337 for (i = 1; i <= NF; i++) 338 print $i, scenariocpu[$i]; 339} 340___EOF___ 341echo $configs_derep | awk -f $T/cfgcpu.awk > $T/cfgcpu 342sort -k2nr $T/cfgcpu -T="$T" > $T/cfgcpu.sort 343 344# Use a greedy bin-packing algorithm, sorting the list accordingly. 345awk < $T/cfgcpu.sort > $T/cfgcpu.pack -v ncpus=$cpus ' 346BEGIN { 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 357END { 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. 393cat << ___EOF___ > $T/script 394CONFIGFRAG="$CONFIGFRAG"; export CONFIGFRAG 395RCUTORTURE="$RCUTORTURE"; export RCUTORTURE 396PATH="$PATH"; export PATH 397TORTURE_ALLOTED_CPUS="$TORTURE_ALLOTED_CPUS"; export TORTURE_ALLOTED_CPUS 398TORTURE_BOOT_IMAGE="$TORTURE_BOOT_IMAGE"; export TORTURE_BOOT_IMAGE 399TORTURE_BUILDONLY="$TORTURE_BUILDONLY"; export TORTURE_BUILDONLY 400TORTURE_DEFCONFIG="$TORTURE_DEFCONFIG"; export TORTURE_DEFCONFIG 401TORTURE_INITRD="$TORTURE_INITRD"; export TORTURE_INITRD 402TORTURE_KCONFIG_ARG="$TORTURE_KCONFIG_ARG"; export TORTURE_KCONFIG_ARG 403TORTURE_KCONFIG_GDB_ARG="$TORTURE_KCONFIG_GDB_ARG"; export TORTURE_KCONFIG_GDB_ARG 404TORTURE_BOOT_GDB_ARG="$TORTURE_BOOT_GDB_ARG"; export TORTURE_BOOT_GDB_ARG 405TORTURE_QEMU_GDB_ARG="$TORTURE_QEMU_GDB_ARG"; export TORTURE_QEMU_GDB_ARG 406TORTURE_KCONFIG_KASAN_ARG="$TORTURE_KCONFIG_KASAN_ARG"; export TORTURE_KCONFIG_KASAN_ARG 407TORTURE_KCONFIG_KCSAN_ARG="$TORTURE_KCONFIG_KCSAN_ARG"; export TORTURE_KCONFIG_KCSAN_ARG 408TORTURE_KMAKE_ARG="$TORTURE_KMAKE_ARG"; export TORTURE_KMAKE_ARG 409TORTURE_MOD="$TORTURE_MOD"; export TORTURE_MOD 410TORTURE_QEMU_CMD="$TORTURE_QEMU_CMD"; export TORTURE_QEMU_CMD 411TORTURE_QEMU_INTERACTIVE="$TORTURE_QEMU_INTERACTIVE"; export TORTURE_QEMU_INTERACTIVE 412TORTURE_QEMU_MAC="$TORTURE_QEMU_MAC"; export TORTURE_QEMU_MAC 413TORTURE_QEMU_MEM="$TORTURE_QEMU_MEM"; export TORTURE_QEMU_MEM 414TORTURE_SHUTDOWN_GRACE="$TORTURE_SHUTDOWN_GRACE"; export TORTURE_SHUTDOWN_GRACE 415TORTURE_SUITE="$TORTURE_SUITE"; export TORTURE_SUITE 416TORTURE_TRUST_MAKE="$TORTURE_TRUST_MAKE"; export TORTURE_TRUST_MAKE 417if ! test -e $resdir 418then 419 mkdir -p "$resdir" || : 420fi 421mkdir -p $resdir/$ds 422TORTURE_RESDIR="$resdir/$ds"; export TORTURE_RESDIR 423TORTURE_STOPFILE="$resdir/$ds/STOP.1"; export TORTURE_STOPFILE 424echo Results directory: $resdir/$ds 425echo $scriptname $args 426touch $resdir/$ds/log 427echo $scriptname $args >> $resdir/$ds/log 428echo ${TORTURE_SUITE} > $resdir/$ds/torture_suite 429echo Build directory: `pwd` > $resdir/$ds/testid.txt 430if test -d .git 431then 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 440fi 441___EOF___ 442kvm-assign-cpus.sh /sys/devices/system/node > $T/cpuarray.awk 443kvm-get-cpus-script.sh $T/cpuarray.awk $T/dumpbatches.awk 444cat << '___EOF___' >> $T/dumpbatches.awk 445BEGIN { 446 i = 0; 447} 448 449{ 450 cf[i] = $1; 451 cpus[i] = $2; 452 i++; 453} 454 455# Dump out the scripting required to run one test batch. 456function dump(first, pastlast, batchnum, affinitylist) 457{ 458 print "echo ----Start batch " batchnum ": `date` | tee -a " rd "log"; 459 print "needqemurun=" 460 jn=1 461 njitter = 0; 462 split(jitter, ja); 463 if (ja[1] == -1 && ncpus == 0) 464 njitter = 1; 465 else if (ja[1] == -1) 466 njitter = ncpus; 467 else 468 njitter = ja[1]; 469 print "TORTURE_JITTER_START=\". jitterstart.sh " njitter " " rd " " dur " " ja[2] " " ja[3] "\"; export TORTURE_JITTER_START"; 470 print "TORTURE_JITTER_STOP=\". jitterstop.sh " rd " \"; export TORTURE_JITTER_STOP" 471 for (j = first; j < pastlast; j++) { 472 cpusr[jn] = cpus[j]; 473 if (cfrep[cf[j]] == "") { 474 cfr[jn] = cf[j]; 475 cfrep[cf[j]] = 1; 476 } else { 477 cfrep[cf[j]]++; 478 cfr[jn] = cf[j] "." cfrep[cf[j]]; 479 } 480 builddir=rd cfr[jn] "/build"; 481 if (cpusr[jn] > ncpus && ncpus != 0) 482 ovf = "-ovf"; 483 else 484 ovf = ""; 485 print "echo ", cfr[jn], cpusr[jn] ovf ": Starting build. `date` | tee -a " rd "log"; 486 print "mkdir " rd cfr[jn] " || :"; 487 print "touch " builddir ".wait"; 488 affinitylist = ""; 489 if (gotcpus()) { 490 affinitylist = nextcpus(cpusr[jn]); 491 } 492 if (affinitylist ~ /^[0-9,-][0-9,-]*$/) 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 547END { 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___ 575awk < $T/cfgcpu.pack \ 576 -v TORTURE_BUILDONLY="$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 >> $T/script 586echo kvm-end-run-stats.sh "$resdir/$ds" "$starttime" >> $T/script 587 588# Extract the tests and their batches from the script. 589egrep '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. 601grep -v '^#' $T/batches | awk ' 602BEGIN { 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 615END { 616 print ++n ". " curbatch; 617}' > $T/scenarios 618 619if test "$dryrun" = script 620then 621 cat $T/script 622 exit 0 623elif test "$dryrun" = sched 624then 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: $nbatches 634 exit 0 635elif test "$dryrun" = batches 636then 637 cat $T/batches 638 exit 0 639elif test "$dryrun" = scenarios 640then 641 cat $T/scenarios 642 exit 0 643else 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 651fi 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