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