670 lines · bash
1#!/bin/bash2# SPDX-License-Identifier: GPL-2.0+3#4# Run a series of tests under KVM. By default, this series is specified5# by the relevant CFLIST file, but can be overridden by the --configs6# command-line argument.7#8# Usage: kvm.sh [ options ]9#10# Copyright (C) IBM Corporation, 201111#12# Authors: Paul E. McKenney <paulmck@linux.ibm.com>13 14scriptname=$015args="$*"16 17T="`mktemp -d ${TMPDIR-/tmp}/kvm.sh.XXXXXX`"18trap 'rm -rf $T' 019 20cd `dirname $scriptname`/../../../../../21 22# This script knows only English.23LANG=en_US.UTF-8; export LANG24 25dur=$((30*60))26dryrun=""27RCUTORTURE="`pwd`/tools/testing/selftests/rcutorture"; export RCUTORTURE28PATH=${RCUTORTURE}/bin:$PATH; export PATH29. functions.sh30 31TORTURE_ALLOTED_CPUS="`identify_qemu_vcpus`"32TORTURE_DEFCONFIG=defconfig33TORTURE_BOOT_IMAGE=""34TORTURE_BUILDONLY=35TORTURE_INITRD="$RCUTORTURE/initrd"; export TORTURE_INITRD36TORTURE_KCONFIG_ARG=""37TORTURE_KCONFIG_GDB_ARG=""38TORTURE_BOOT_GDB_ARG=""39TORTURE_QEMU_GDB_ARG=""40TORTURE_JITTER_START=""41TORTURE_JITTER_STOP=""42TORTURE_KCONFIG_KASAN_ARG=""43TORTURE_KCONFIG_KCSAN_ARG=""44TORTURE_KMAKE_ARG=""45TORTURE_QEMU_MEM=51246torture_qemu_mem_default=147TORTURE_REMOTE=48TORTURE_SHUTDOWN_GRACE=18049TORTURE_SUITE=rcu50TORTURE_MOD=rcutorture51TORTURE_TRUST_MAKE=""52debuginfo="CONFIG_DEBUG_INFO_NONE=n CONFIG_DEBUG_INFO_DWARF_TOOLCHAIN_DEFAULT=y"53resdir=""54configs=""55cpus=056ds=`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 " --debug-info"73 echo " --dryrun batches|scenarios|sched|script"74 echo " --duration minutes | <seconds>s | <hours>h | <days>d"75 echo " --gdb"76 echo " --help"77 echo " --interactive"78 echo " --jitter N [ maxsleep (us) [ maxspin (us) ] ]"79 echo " --kasan"80 echo " --kconfig Kconfig-options"81 echo " --kcsan"82 echo " --kmake-arg kernel-make-arguments"83 echo " --mac nn:nn:nn:nn:nn:nn"84 echo " --memory megabytes|nnnG"85 echo " --no-initrd"86 echo " --qemu-args qemu-arguments"87 echo " --qemu-cmd qemu-system-..."88 echo " --remote"89 echo " --results absolute-pathname"90 echo " --shutdown-grace seconds"91 echo " --torture lock|rcu|rcuscale|refscale|scf|X*"92 echo " --trust-make"93 exit 194}95 96while test $# -gt 097do98 case "$1" in99 --allcpus)100 cpus=$TORTURE_ALLOTED_CPUS101 max_cpus=$TORTURE_ALLOTED_CPUS102 ;;103 --bootargs|--bootarg)104 checkarg --bootargs "(list of kernel boot arguments)" "$#" "$2" '.*' '^--'105 TORTURE_BOOTARGS="$TORTURE_BOOTARGS $2"106 shift107 ;;108 --bootimage)109 checkarg --bootimage "(relative path to kernel boot image)" "$#" "$2" '[a-zA-Z0-9][a-zA-Z0-9_]*' '^--'110 TORTURE_BOOT_IMAGE="$2"111 shift112 ;;113 --buildonly|--build-only)114 TORTURE_BUILDONLY=1115 ;;116 --configs|--config)117 checkarg --configs "(list of config files)" "$#" "$2" '^[^/.a-z]\+$' '^--'118 configs="$configs $2"119 shift120 ;;121 --cpus)122 checkarg --cpus "(number)" "$#" "$2" '^[0-9]*$' '^--'123 cpus=$2124 TORTURE_ALLOTED_CPUS="$2"125 if test -z "$TORTURE_REMOTE"126 then127 max_cpus="`identify_qemu_vcpus`"128 if test "$TORTURE_ALLOTED_CPUS" -gt "$max_cpus"129 then130 TORTURE_ALLOTED_CPUS=$max_cpus131 fi132 fi133 shift134 ;;135 --datestamp)136 checkarg --datestamp "(relative pathname)" "$#" "$2" '^[a-zA-Z0-9._/-]*$' '^--'137 ds=$2138 shift139 ;;140 --debug-info|--debuginfo)141 if test -z "$TORTURE_KCONFIG_KCSAN_ARG" && test -z "$TORTURE_BOOT_GDB_ARG"142 then143 TORTURE_KCONFIG_KCSAN_ARG="$debuginfo"; export TORTURE_KCONFIG_KCSAN_ARG144 TORTURE_BOOT_GDB_ARG="nokaslr"; export TORTURE_BOOT_GDB_ARG145 else146 echo "Ignored redundant --debug-info (implied by --kcsan &c)"147 fi148 ;;149 --defconfig)150 checkarg --defconfig "defconfigtype" "$#" "$2" '^[^/][^/]*$' '^--'151 TORTURE_DEFCONFIG=$2152 shift153 ;;154 --dryrun)155 checkarg --dryrun "batches|sched|script" $# "$2" 'batches\|scenarios\|sched\|script' '^--'156 dryrun=$2157 shift158 ;;159 --duration)160 checkarg --duration "(minutes)" $# "$2" '^[0-9][0-9]*\(s\|m\|h\|d\|\)$' '^error'161 mult=60162 if echo "$2" | grep -q 's$'163 then164 mult=1165 elif echo "$2" | grep -q 'h$'166 then167 mult=3600168 elif echo "$2" | grep -q 'd$'169 then170 mult=86400171 fi172 ts=`echo $2 | sed -e 's/[smhd]$//'`173 dur=$(($ts*mult))174 shift175 ;;176 --gdb)177 TORTURE_KCONFIG_GDB_ARG="$debuginfo"; export TORTURE_KCONFIG_GDB_ARG178 TORTURE_BOOT_GDB_ARG="nokaslr"; export TORTURE_BOOT_GDB_ARG179 TORTURE_QEMU_GDB_ARG="-s -S"; export TORTURE_QEMU_GDB_ARG180 ;;181 --help|-h)182 usage183 ;;184 --interactive)185 TORTURE_QEMU_INTERACTIVE=1; export TORTURE_QEMU_INTERACTIVE186 ;;187 --jitter)188 checkarg --jitter "(# threads [ sleep [ spin ] ])" $# "$2" '^-\{,1\}[0-9]\+\( \+[0-9]\+\)\{,2\} *$' '^error$'189 jitter="$2"190 shift191 ;;192 --kasan)193 TORTURE_KCONFIG_KASAN_ARG="$debuginfo CONFIG_KASAN=y"; export TORTURE_KCONFIG_KASAN_ARG194 if test -n "$torture_qemu_mem_default"195 then196 TORTURE_QEMU_MEM=2G197 fi198 ;;199 --kconfig|--kconfigs)200 checkarg --kconfig "(Kconfig options)" $# "$2" '^\(#CHECK#\)\?CONFIG_[A-Z0-9_]\+=\([ynm]\|[0-9]\+\|"[^"]*"\)\( \(#CHECK#\)\?CONFIG_[A-Z0-9_]\+=\([ynm]\|[0-9]\+\|"[^"]*"\)\)*$' '^error$'201 TORTURE_KCONFIG_ARG="`echo "$TORTURE_KCONFIG_ARG $2" | sed -e 's/^ *//' -e 's/ *$//'`"202 shift203 ;;204 --kcsan)205 TORTURE_KCONFIG_KCSAN_ARG="$debuginfo 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_ARG206 ;;207 --kmake-arg|--kmake-args)208 checkarg --kmake-arg "(kernel make arguments)" $# "$2" '.*' '^error$'209 TORTURE_KMAKE_ARG="`echo "$TORTURE_KMAKE_ARG $2" | sed -e 's/^ *//' -e 's/ *$//'`"210 shift211 ;;212 --mac)213 checkarg --mac "(MAC address)" $# "$2" '^\([0-9a-fA-F]\{2\}:\)\{5\}[0-9a-fA-F]\{2\}$' error214 TORTURE_QEMU_MAC=$2215 shift216 ;;217 --memory)218 checkarg --memory "(memory size)" $# "$2" '^[0-9]\+[MG]\?$' error219 TORTURE_QEMU_MEM=$2220 torture_qemu_mem_default=221 shift222 ;;223 --no-initrd)224 TORTURE_INITRD=""; export TORTURE_INITRD225 ;;226 --qemu-args|--qemu-arg)227 checkarg --qemu-args "(qemu arguments)" $# "$2" '^-' '^error'228 TORTURE_QEMU_ARG="`echo "$TORTURE_QEMU_ARG $2" | sed -e 's/^ *//' -e 's/ *$//'`"229 shift230 ;;231 --qemu-cmd)232 checkarg --qemu-cmd "(qemu-system-...)" $# "$2" 'qemu-system-' '^--'233 TORTURE_QEMU_CMD="$2"234 shift235 ;;236 --remote)237 TORTURE_REMOTE=1238 ;;239 --results)240 checkarg --results "(absolute pathname)" "$#" "$2" '^/' '^error'241 resdir=$2242 shift243 ;;244 --shutdown-grace)245 checkarg --shutdown-grace "(seconds)" "$#" "$2" '^[0-9]*$' '^error'246 TORTURE_SHUTDOWN_GRACE=$2247 shift248 ;;249 --torture)250 checkarg --torture "(suite name)" "$#" "$2" '^\(lock\|rcu\|rcuscale\|refscale\|scf\|X.*\)$' '^--'251 TORTURE_SUITE=$2252 TORTURE_MOD="`echo $TORTURE_SUITE | sed -e 's/^\(lock\|rcu\|scf\)$/\1torture/'`"253 shift254 if test "$TORTURE_SUITE" = rcuscale || test "$TORTURE_SUITE" = refscale255 then256 # If you really want jitter for refscale or257 # rcuscale, specify it after specifying the rcuscale258 # or the refscale. (But why jitter in these cases?)259 jitter=0260 fi261 ;;262 --trust-make)263 TORTURE_TRUST_MAKE="y"264 ;;265 *)266 echo Unknown argument $1267 usage268 ;;269 esac270 shift271done272 273if test -n "$dryrun" || test -z "$TORTURE_INITRD" || tools/testing/selftests/rcutorture/bin/mkinitrd.sh274then275 :276else277 echo No initrd and unable to create one, aborting test >&2278 exit 1279fi280 281CONFIGFRAG=${RCUTORTURE}/configs/${TORTURE_SUITE}; export CONFIGFRAG282 283defaultconfigs="`tr '\012' ' ' < $CONFIGFRAG/CFLIST`"284if test -z "$configs"285then286 configs=$defaultconfigs287fi288 289if test -z "$resdir"290then291 resdir=$RCUTORTURE/res292fi293 294# Create a file of test-name/#cpus pairs, sorted by decreasing #cpus.295configs_derep=296for CF in $configs297do298 case $CF in299 [0-9]\**|[0-9][0-9]\**|[0-9][0-9][0-9]\**|[0-9][0-9][0-9][0-9]\**)300 config_reps=`echo $CF | sed -e 's/\*.*$//'`301 CF1=`echo $CF | sed -e 's/^[^*]*\*//'`302 ;;303 *)304 config_reps=1305 CF1=$CF306 ;;307 esac308 for ((cur_rep=0;cur_rep<$config_reps;cur_rep++))309 do310 configs_derep="$configs_derep $CF1"311 done312done313touch $T/cfgcpu314configs_derep="`echo $configs_derep | sed -e "s/\<CFLIST\>/$defaultconfigs/g"`"315if test -n "$TORTURE_KCONFIG_GDB_ARG"316then317 if test "`echo $configs_derep | wc -w`" -gt 1318 then319 echo "The --config list is: $configs_derep."320 echo "Only one --config permitted with --gdb, terminating."321 exit 1322 fi323fi324echo 'BEGIN {' > $T/cfgcpu.awk325for CF1 in `echo $configs_derep | tr -s ' ' '\012' | sort -u`326do327 if test -f "$CONFIGFRAG/$CF1"328 then329 if echo "$TORTURE_KCONFIG_ARG" | grep -q '\<CONFIG_NR_CPUS='330 then331 echo "$TORTURE_KCONFIG_ARG" | tr -s ' ' | tr ' ' '\012' > $T/KCONFIG_ARG332 cpu_count=`configNR_CPUS.sh $T/KCONFIG_ARG`333 else334 cpu_count=`configNR_CPUS.sh $CONFIGFRAG/$CF1`335 fi336 cpu_count=`configfrag_boot_cpus "$TORTURE_BOOTARGS" "$CONFIGFRAG/$CF1" "$cpu_count"`337 cpu_count=`configfrag_boot_maxcpus "$TORTURE_BOOTARGS" "$CONFIGFRAG/$CF1" "$cpu_count"`338 echo 'scenariocpu["'"$CF1"'"] = '"$cpu_count"';' >> $T/cfgcpu.awk339 else340 echo "The --configs file $CF1 does not exist, terminating."341 exit 1342 fi343done344cat << '___EOF___' >> $T/cfgcpu.awk345}346{347 for (i = 1; i <= NF; i++)348 print $i, scenariocpu[$i];349}350___EOF___351echo $configs_derep | awk -f $T/cfgcpu.awk > $T/cfgcpu352sort -k2nr $T/cfgcpu -T="$T" > $T/cfgcpu.sort353 354# Use a greedy bin-packing algorithm, sorting the list accordingly.355awk < $T/cfgcpu.sort > $T/cfgcpu.pack -v ncpus=$cpus '356BEGIN {357 njobs = 0;358}359 360{361 # Read file of tests and corresponding required numbers of CPUs.362 cf[njobs] = $1;363 cpus[njobs] = $2;364 njobs++;365}366 367END {368 batch = 0;369 nc = -1;370 371 # Each pass through the following loop creates on test batch that372 # can be executed concurrently given ncpus. Note that a given test373 # that requires more than the available CPUs will run in its own374 # batch. Such tests just have to make do with what is available.375 while (nc != ncpus) {376 batch++;377 nc = ncpus;378 379 # Each pass through the following loop considers one380 # test for inclusion in the current batch.381 for (i = 0; i < njobs; i++) {382 if (done[i])383 continue; # Already part of a batch.384 if (nc >= cpus[i] || nc == ncpus) {385 386 # This test fits into the current batch.387 done[i] = batch;388 nc -= cpus[i];389 if (nc <= 0)390 break; # Too-big test in its own batch.391 }392 }393 }394 395 # Dump out the tests in batch order.396 for (b = 1; b <= batch; b++)397 for (i = 0; i < njobs; i++)398 if (done[i] == b)399 print cf[i], cpus[i];400}'401 402# Generate a script to execute the tests in appropriate batches.403cat << ___EOF___ > $T/script404CONFIGFRAG="$CONFIGFRAG"; export CONFIGFRAG405RCUTORTURE="$RCUTORTURE"; export RCUTORTURE406PATH="$PATH"; export PATH407TORTURE_ALLOTED_CPUS="$TORTURE_ALLOTED_CPUS"; export TORTURE_ALLOTED_CPUS408TORTURE_BOOT_IMAGE="$TORTURE_BOOT_IMAGE"; export TORTURE_BOOT_IMAGE409TORTURE_BUILDONLY="$TORTURE_BUILDONLY"; export TORTURE_BUILDONLY410TORTURE_DEFCONFIG="$TORTURE_DEFCONFIG"; export TORTURE_DEFCONFIG411TORTURE_INITRD="$TORTURE_INITRD"; export TORTURE_INITRD412TORTURE_KCONFIG_ARG="$TORTURE_KCONFIG_ARG"; export TORTURE_KCONFIG_ARG413TORTURE_KCONFIG_GDB_ARG="$TORTURE_KCONFIG_GDB_ARG"; export TORTURE_KCONFIG_GDB_ARG414TORTURE_BOOT_GDB_ARG="$TORTURE_BOOT_GDB_ARG"; export TORTURE_BOOT_GDB_ARG415TORTURE_QEMU_GDB_ARG="$TORTURE_QEMU_GDB_ARG"; export TORTURE_QEMU_GDB_ARG416TORTURE_KCONFIG_KASAN_ARG="$TORTURE_KCONFIG_KASAN_ARG"; export TORTURE_KCONFIG_KASAN_ARG417TORTURE_KCONFIG_KCSAN_ARG="$TORTURE_KCONFIG_KCSAN_ARG"; export TORTURE_KCONFIG_KCSAN_ARG418TORTURE_KMAKE_ARG="$TORTURE_KMAKE_ARG"; export TORTURE_KMAKE_ARG419TORTURE_MOD="$TORTURE_MOD"; export TORTURE_MOD420TORTURE_QEMU_CMD="$TORTURE_QEMU_CMD"; export TORTURE_QEMU_CMD421TORTURE_QEMU_INTERACTIVE="$TORTURE_QEMU_INTERACTIVE"; export TORTURE_QEMU_INTERACTIVE422TORTURE_QEMU_MAC="$TORTURE_QEMU_MAC"; export TORTURE_QEMU_MAC423TORTURE_QEMU_MEM="$TORTURE_QEMU_MEM"; export TORTURE_QEMU_MEM424TORTURE_SHUTDOWN_GRACE="$TORTURE_SHUTDOWN_GRACE"; export TORTURE_SHUTDOWN_GRACE425TORTURE_SUITE="$TORTURE_SUITE"; export TORTURE_SUITE426TORTURE_TRUST_MAKE="$TORTURE_TRUST_MAKE"; export TORTURE_TRUST_MAKE427if ! test -e $resdir428then429 mkdir -p "$resdir" || :430fi431mkdir -p $resdir/$ds432TORTURE_RESDIR="$resdir/$ds"; export TORTURE_RESDIR433TORTURE_STOPFILE="$resdir/$ds/STOP.1"; export TORTURE_STOPFILE434echo Results directory: $resdir/$ds435echo $scriptname $args436touch $resdir/$ds/log437echo $scriptname $args >> $resdir/$ds/log438echo ${TORTURE_SUITE} > $resdir/$ds/torture_suite439echo Build directory: `pwd` > $resdir/$ds/testid.txt440if test -d .git441then442 echo Current commit: `git rev-parse HEAD` >> $resdir/$ds/testid.txt443 echo >> $resdir/$ds/testid.txt444 echo ' ---' Output of "'"git status"'": >> $resdir/$ds/testid.txt445 git status >> $resdir/$ds/testid.txt446 echo >> $resdir/$ds/testid.txt447 echo >> $resdir/$ds/testid.txt448 echo ' ---' Output of "'"git diff HEAD"'": >> $resdir/$ds/testid.txt449 git diff HEAD >> $resdir/$ds/testid.txt450fi451___EOF___452kvm-assign-cpus.sh /sys/devices/system/node > $T/cpuarray.awk453kvm-get-cpus-script.sh $T/cpuarray.awk $T/dumpbatches.awk454cat << '___EOF___' >> $T/dumpbatches.awk455BEGIN {456 i = 0;457}458 459{460 cf[i] = $1;461 cpus[i] = $2;462 i++;463}464 465# Dump out the scripting required to run one test batch.466function dump(first, pastlast, batchnum, affinitylist)467{468 print "echo ----Start batch " batchnum ": `date` | tee -a " rd "log";469 print "needqemurun="470 jn=1471 njitter = 0;472 split(jitter, ja);473 if (ja[1] == -1 && ncpus == 0)474 njitter = 1;475 else if (ja[1] == -1)476 njitter = ncpus;477 else478 njitter = ja[1];479 print "TORTURE_JITTER_START=\". jitterstart.sh " njitter " " rd " " dur " " ja[2] " " ja[3] "\"; export TORTURE_JITTER_START";480 print "TORTURE_JITTER_STOP=\". jitterstop.sh " rd " \"; export TORTURE_JITTER_STOP"481 for (j = first; j < pastlast; j++) {482 cpusr[jn] = cpus[j];483 if (cfrep[cf[j]] == "") {484 cfr[jn] = cf[j];485 cfrep[cf[j]] = 1;486 } else {487 cfrep[cf[j]]++;488 cfr[jn] = cf[j] "." cfrep[cf[j]];489 }490 builddir=rd cfr[jn] "/build";491 if (cpusr[jn] > ncpus && ncpus != 0)492 ovf = "-ovf";493 else494 ovf = "";495 print "echo ", cfr[jn], cpusr[jn] ovf ": Starting build. `date` | tee -a " rd "log";496 print "mkdir " rd cfr[jn] " || :";497 print "touch " builddir ".wait";498 affinitylist = "";499 if (gotcpus()) {500 affinitylist = nextcpus(cpusr[jn]);501 }502 if (affinitylist ~ /^[0-9,-][0-9,-]*$/)503 print "export TORTURE_AFFINITY=" affinitylist;504 else505 print "export TORTURE_AFFINITY=";506 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 &"507 print "echo ", cfr[jn], cpusr[jn] ovf ": Waiting for build to complete. `date` | tee -a " rd "log";508 print "while test -f " builddir ".wait"509 print "do"510 print "\tsleep 1"511 print "done"512 print "echo ", cfr[jn], cpusr[jn] ovf ": Build complete. `date` | tee -a " rd "log";513 jn++;514 }515 print "runfiles="516 for (j = 1; j < jn; j++) {517 builddir=rd cfr[j] "/build";518 if (TORTURE_BUILDONLY)519 print "rm -f " builddir ".ready"520 else521 print "mv " builddir ".ready " builddir ".run"522 print "runfiles=\"$runfiles " builddir ".run\""523 fi524 print "if test -f \"" rd cfr[j] "/builtkernel\""525 print "then"526 print "\techo ----", cfr[j], cpusr[j] ovf ": Kernel present. `date` | tee -a " rd "log";527 print "\tneedqemurun=1"528 print "fi"529 }530 if (TORTURE_BUILDONLY && njitter != 0) {531 njitter = 0;532 print "echo Build-only run, so suppressing jitter | tee -a " rd "log"533 }534 if (TORTURE_BUILDONLY) {535 print "needqemurun="536 }537 print "if test -n \"$needqemurun\""538 print "then"539 print "\techo ---- Starting kernels. `date` | tee -a " rd "log";540 print "\t$TORTURE_JITTER_START";541 print "\twhile ls $runfiles > /dev/null 2>&1"542 print "\tdo"543 print "\t\t:"544 print "\tdone"545 print "\t$TORTURE_JITTER_STOP";546 print "\techo ---- All kernel runs complete. `date` | tee -a " rd "log";547 print "else"548 print "\twait"549 print "\techo ---- No kernel runs. `date` | tee -a " rd "log";550 print "fi"551 for (j = 1; j < jn; j++) {552 print "echo ----", cfr[j], cpusr[j] ovf ": Build/run results: | tee -a " rd "log";553 print "cat " rd cfr[j] "/kvm-test-1-run.sh.out | tee -a " rd "log";554 }555}556 557END {558 njobs = i;559 nc = ncpus;560 first = 0;561 batchnum = 1;562 563 # Each pass through the following loop considers one test.564 for (i = 0; i < njobs; i++) {565 if (ncpus == 0) {566 # Sequential test specified, each test its own batch.567 dump(i, i + 1, batchnum);568 first = i;569 batchnum++;570 } else if (nc < cpus[i] && i != 0) {571 # Out of CPUs, dump out a batch.572 dump(first, i, batchnum);573 first = i;574 nc = ncpus;575 batchnum++;576 }577 # Account for the CPUs needed by the current test.578 nc -= cpus[i];579 }580 # Dump the last batch.581 if (ncpus != 0)582 dump(first, i, batchnum);583}584___EOF___585awk < $T/cfgcpu.pack \586 -v TORTURE_BUILDONLY="$TORTURE_BUILDONLY" \587 -v CONFIGDIR="$CONFIGFRAG/" \588 -v RCUTORTURE="$RCUTORTURE" \589 -v ncpus=$cpus \590 -v jitter="$jitter" \591 -v rd=$resdir/$ds/ \592 -v dur=$dur \593 -v TORTURE_QEMU_ARG="$TORTURE_QEMU_ARG" \594 -v TORTURE_BOOTARGS="$TORTURE_BOOTARGS" \595 -f $T/dumpbatches.awk >> $T/script596echo kvm-end-run-stats.sh "$resdir/$ds" "$starttime" >> $T/script597 598# Extract the tests and their batches from the script.599grep -E 'Start batch|Starting build\.' $T/script | grep -v ">>" |600 sed -e 's/:.*$//' -e 's/^echo //' -e 's/-ovf//' |601 awk '602 /^----Start/ {603 batchno = $3;604 next;605 }606 {607 print batchno, $1, $2608 }' > $T/batches609 610# As above, but one line per batch.611grep -v '^#' $T/batches | awk '612BEGIN {613 oldbatch = 1;614}615 616{617 if (oldbatch != $1) {618 print ++n ". " curbatch;619 curbatch = "";620 oldbatch = $1;621 }622 curbatch = curbatch " " $2;623}624 625END {626 print ++n ". " curbatch;627}' > $T/scenarios628 629if test "$dryrun" = script630then631 cat $T/script632 exit 0633elif test "$dryrun" = sched634then635 # Extract the test run schedule from the script.636 grep -E 'Start batch|Starting build\.' $T/script | grep -v ">>" |637 sed -e 's/:.*$//' -e 's/^echo //'638 nbuilds="`grep 'Starting build\.' $T/script |639 grep -v ">>" | sed -e 's/:.*$//' -e 's/^echo //' |640 awk '{ print $1 }' | grep -v '\.' | wc -l`"641 echo Total number of builds: $nbuilds642 nbatches="`grep 'Start batch' $T/script | grep -v ">>" | wc -l`"643 echo Total number of batches: $nbatches644 exit 0645elif test "$dryrun" = batches646then647 cat $T/batches648 exit 0649elif test "$dryrun" = scenarios650then651 cat $T/scenarios652 exit 0653else654 # Not a dryrun. Record the batches and the number of CPUs, then run the script.655 bash $T/script656 ret=$?657 cp $T/batches $resdir/$ds/batches658 cp $T/scenarios $resdir/$ds/scenarios659 echo '#' cpus=$cpus >> $resdir/$ds/batches660 exit $ret661fi662 663# 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_barrier664# Function-graph tracing: ftrace=function_graph ftrace_graph_filter=sched_setaffinity,migration_cpu_stop665# Also --kconfig "CONFIG_FUNCTION_TRACER=y CONFIG_FUNCTION_GRAPH_TRACER=y"666# Control buffer size: --bootargs trace_buf_size=3k667# Get trace-buffer dumps on all oopses: --bootargs ftrace_dump_on_oops668# Ditto, but dump only the oopsing CPU: --bootargs ftrace_dump_on_oops=orig_cpu669# Heavy-handed way to also dump on warnings: --bootargs panic_on_warn=1670