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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 99 100 101 102 103 104 105 106 107 108 109 110 111 112 113 114 115 116 117 118 119 120 121 122 123 124 125 126 127 128 129 130 131 132 133 134 135 136 137 138 139 140 141 142 143 144 145 146 147 148 149 150 151 152 153 154 155 156 157 158 159 160 161 162 163 164 165 166 167 168 169 170 171 172 173 174 175 176 177 178 179 180 181 182 183 184 185 186 187 188 189 190 191 192 193 194 195 196 197 198 199 200 201 202 203 204 205 206 207 208 209 210 211 212 213 214 215 216 217 218 219 220 221 222 223 224 225 226 227 228 229 230 231 232 233 234 235 236 237 238 239 240 241 242 243 244 245 246 247 248 249 250 251 252 253 254 255 256 257 258 259 260 261 262 263 264 265 266 267 268 269 270 271 272 273 274 275 276 277 278 279 280 281 282 283 284 285 286 287 288 289 290 291 292 293 294 295 296 297 298 299 300 301 302 303 304 305 306 307 308 309 310 311 312 313 314 315 316 317 318 319 320 321 322 323 324 325 326 327 328 329 330 331 332 333 334 335 336 337 338 339 340 341 342 343 344 345 346 347 348 349 350 351 352 353 354 355 356 357 358 359 360 361 362 363 364 365 366 367 368 369 370 371 372 373 374 375 376 377 378 379 380 381 382 383 384 385 386 387 388 389 390 391 392 393 394 395 396 397 398 399 400 401 402 403 404 405 406 407 408 409 410 411 412 413 414 415 416 417 418 419 420 421 422 423 424 425 426 427 428 429 430 431 432 433 434 435 436 437 438 439 440 441 442 443 444 445 446 447 448 449 450 451 452 453 454 455 456 457 458 459 460 461 462 463 464 465 466 467 468 469 470 471 472 473 474 475 476 477 478 479 480 481 482 483 484 485 486 487 488 489 490 491 492 493 494 495 496 497 498 499 500 501 502 503 504 505 506 507 508 509 510 511 512 513 514 515 516 517 518 519 520 521 522 523 524 525 526 527 528 529 530 531 532 533 534 535 536 537 538 539 540 541 542 543 544 545 546 547 548 549 550 551 552 553 554 555 556 557 558 559 560 561 562 563 564 565 566 567 568 569 570 571 572 573 574 575 576 577 578 579 580 581 582 583 584 585 586 587 588 589 590 591 592 593 594 595 596 597 598 599 600 601 602 603 604 605 606 607 608 609 610 611 612 613 614 615 616 617 618 619 620 621 622 623 624 625 626 627 628 629 630 631 632 633 634 635 636 637 638 639 640 641 642 643 644 645 646 647 648 649 650 651 652 653 654 655 656 657 658 659 660 661 662 663 664 665 666 667 668 669 670 671 672 673 674 675 | #!/bin/bash # SPDX-License-Identifier: GPL-2.0 # # Test for cpuset v2 partition root state (PRS) # # The sched verbose flag is set, if available, so that the console log # can be examined for the correct setting of scheduling domain. # skip_test() { echo "$1" echo "Test SKIPPED" exit 0 } [[ $(id -u) -eq 0 ]] || skip_test "Test must be run as root!" # Set sched verbose flag, if available [[ -d /sys/kernel/debug/sched ]] && echo Y > /sys/kernel/debug/sched/verbose # Get wait_inotify location WAIT_INOTIFY=$(cd $(dirname $0); pwd)/wait_inotify # Find cgroup v2 mount point CGROUP2=$(mount -t cgroup2 | head -1 | awk -e '{print $3}') [[ -n "$CGROUP2" ]] || skip_test "Cgroup v2 mount point not found!" CPUS=$(lscpu | grep "^CPU(s)" | sed -e "s/.*:[[:space:]]*//") [[ $CPUS -lt 8 ]] && skip_test "Test needs at least 8 cpus available!" # Set verbose flag and delay factor PROG=$1 VERBOSE= DELAY_FACTOR=1 while [[ "$1" = -* ]] do case "$1" in -v) VERBOSE=1 break ;; -d) DELAY_FACTOR=$2 shift break ;; *) echo "Usage: $PROG [-v] [-d <delay-factor>" exit ;; esac shift done cd $CGROUP2 echo +cpuset > cgroup.subtree_control [[ -d test ]] || mkdir test cd test # Pause in ms pause() { DELAY=$1 LOOP=0 while [[ $LOOP -lt $DELAY_FACTOR ]] do sleep $DELAY ((LOOP++)) done return 0 } console_msg() { MSG=$1 echo "$MSG" echo "" > /dev/console echo "$MSG" > /dev/console pause 0.01 } test_partition() { EXPECTED_VAL=$1 echo $EXPECTED_VAL > cpuset.cpus.partition [[ $? -eq 0 ]] || exit 1 ACTUAL_VAL=$(cat cpuset.cpus.partition) [[ $ACTUAL_VAL != $EXPECTED_VAL ]] && { echo "cpuset.cpus.partition: expect $EXPECTED_VAL, found $EXPECTED_VAL" echo "Test FAILED" exit 1 } } test_effective_cpus() { EXPECTED_VAL=$1 ACTUAL_VAL=$(cat cpuset.cpus.effective) [[ "$ACTUAL_VAL" != "$EXPECTED_VAL" ]] && { echo "cpuset.cpus.effective: expect '$EXPECTED_VAL', found '$EXPECTED_VAL'" echo "Test FAILED" exit 1 } } # Adding current process to cgroup.procs as a test test_add_proc() { OUTSTR="$1" ERRMSG=$((echo $$ > cgroup.procs) |& cat) echo $ERRMSG | grep -q "$OUTSTR" [[ $? -ne 0 ]] && { echo "cgroup.procs: expect '$OUTSTR', got '$ERRMSG'" echo "Test FAILED" exit 1 } echo $$ > $CGROUP2/cgroup.procs # Move out the task } # # Testing the new "isolated" partition root type # test_isolated() { echo 2-3 > cpuset.cpus TYPE=$(cat cpuset.cpus.partition) [[ $TYPE = member ]] || echo member > cpuset.cpus.partition console_msg "Change from member to root" test_partition root console_msg "Change from root to isolated" test_partition isolated console_msg "Change from isolated to member" test_partition member console_msg "Change from member to isolated" test_partition isolated console_msg "Change from isolated to root" test_partition root console_msg "Change from root to member" test_partition member # # Testing partition root with no cpu # console_msg "Distribute all cpus to child partition" echo +cpuset > cgroup.subtree_control test_partition root mkdir A1 cd A1 echo 2-3 > cpuset.cpus test_partition root test_effective_cpus 2-3 cd .. test_effective_cpus "" console_msg "Moving task to partition test" test_add_proc "No space left" cd A1 test_add_proc "" cd .. console_msg "Shrink and expand child partition" cd A1 echo 2 > cpuset.cpus cd .. test_effective_cpus 3 cd A1 echo 2-3 > cpuset.cpus cd .. test_effective_cpus "" # Cleaning up console_msg "Cleaning up" echo $$ > $CGROUP2/cgroup.procs [[ -d A1 ]] && rmdir A1 } # # Cpuset controller state transition test matrix. # # Cgroup test hierarchy # # test -- A1 -- A2 -- A3 # \- B1 # # P<v> = set cpus.partition (0:member, 1:root, 2:isolated, -1:root invalid) # C<l> = add cpu-list # S<p> = use prefix in subtree_control # T = put a task into cgroup # O<c>-<v> = Write <v> to CPU online file of <c> # SETUP_A123_PARTITIONS="C1-3:P1:S+ C2-3:P1:S+ C3:P1" TEST_MATRIX=( # test old-A1 old-A2 old-A3 old-B1 new-A1 new-A2 new-A3 new-B1 fail ECPUs Pstate # ---- ------ ------ ------ ------ ------ ------ ------ ------ ---- ----- ------ " S+ C0-1 . . C2-3 S+ C4-5 . . 0 A2:0-1" " S+ C0-1 . . C2-3 P1 . . . 0 " " S+ C0-1 . . C2-3 P1:S+ C0-1:P1 . . 0 " " S+ C0-1 . . C2-3 P1:S+ C1:P1 . . 0 " " S+ C0-1:S+ . . C2-3 . . . P1 0 " " S+ C0-1:P1 . . C2-3 S+ C1 . . 0 " " S+ C0-1:P1 . . C2-3 S+ C1:P1 . . 0 " " S+ C0-1:P1 . . C2-3 S+ C1:P1 . P1 0 " " S+ C0-1:P1 . . C2-3 C4-5 . . . 0 A1:4-5" " S+ C0-1:P1 . . C2-3 S+:C4-5 . . . 0 A1:4-5" " S+ C0-1 . . C2-3:P1 . . . C2 0 " " S+ C0-1 . . C2-3:P1 . . . C4-5 0 B1:4-5" " S+ C0-3:P1:S+ C2-3:P1 . . . . . . 0 A1:0-1,A2:2-3" " S+ C0-3:P1:S+ C2-3:P1 . . C1-3 . . . 0 A1:1,A2:2-3" " S+ C2-3:P1:S+ C3:P1 . . C3 . . . 0 A1:,A2:3 A1:P1,A2:P1" " S+ C2-3:P1:S+ C3:P1 . . C3 P0 . . 0 A1:3,A2:3 A1:P1,A2:P0" " S+ C2-3:P1:S+ C2:P1 . . C2-4 . . . 0 A1:3-4,A2:2" " S+ C2-3:P1:S+ C3:P1 . . C3 . . C0-2 0 A1:,B1:0-2 A1:P1,A2:P1" " S+ $SETUP_A123_PARTITIONS . C2-3 . . . 0 A1:,A2:2,A3:3 A1:P1,A2:P1,A3:P1" # CPU offlining cases: " S+ C0-1 . . C2-3 S+ C4-5 . O2-0 0 A1:0-1,B1:3" " S+ C0-3:P1:S+ C2-3:P1 . . O2-0 . . . 0 A1:0-1,A2:3" " S+ C0-3:P1:S+ C2-3:P1 . . O2-0 O2-1 . . 0 A1:0-1,A2:2-3" " S+ C0-3:P1:S+ C2-3:P1 . . O1-0 . . . 0 A1:0,A2:2-3" " S+ C0-3:P1:S+ C2-3:P1 . . O1-0 O1-1 . . 0 A1:0-1,A2:2-3" " S+ C2-3:P1:S+ C3:P1 . . O3-0 O3-1 . . 0 A1:2,A2:3 A1:P1,A2:P1" " S+ C2-3:P1:S+ C3:P2 . . O3-0 O3-1 . . 0 A1:2,A2:3 A1:P1,A2:P2" " S+ C2-3:P1:S+ C3:P1 . . O2-0 O2-1 . . 0 A1:2,A2:3 A1:P1,A2:P1" " S+ C2-3:P1:S+ C3:P2 . . O2-0 O2-1 . . 0 A1:2,A2:3 A1:P1,A2:P2" " S+ C2-3:P1:S+ C3:P1 . . O2-0 . . . 0 A1:,A2:3 A1:P1,A2:P1" " S+ C2-3:P1:S+ C3:P1 . . O3-0 . . . 0 A1:2,A2: A1:P1,A2:P1" " S+ C2-3:P1:S+ C3:P1 . . T:O2-0 . . . 0 A1:3,A2:3 A1:P1,A2:P-1" " S+ C2-3:P1:S+ C3:P1 . . . T:O3-0 . . 0 A1:2,A2:2 A1:P1,A2:P-1" " S+ $SETUP_A123_PARTITIONS . O1-0 . . . 0 A1:,A2:2,A3:3 A1:P1,A2:P1,A3:P1" " S+ $SETUP_A123_PARTITIONS . O2-0 . . . 0 A1:1,A2:,A3:3 A1:P1,A2:P1,A3:P1" " S+ $SETUP_A123_PARTITIONS . O3-0 . . . 0 A1:1,A2:2,A3: A1:P1,A2:P1,A3:P1" " S+ $SETUP_A123_PARTITIONS . T:O1-0 . . . 0 A1:2-3,A2:2-3,A3:3 A1:P1,A2:P-1,A3:P-1" " S+ $SETUP_A123_PARTITIONS . . T:O2-0 . . 0 A1:1,A2:3,A3:3 A1:P1,A2:P1,A3:P-1" " S+ $SETUP_A123_PARTITIONS . . . T:O3-0 . 0 A1:1,A2:2,A3:2 A1:P1,A2:P1,A3:P-1" " S+ $SETUP_A123_PARTITIONS . T:O1-0 O1-1 . . 0 A1:1,A2:2,A3:3 A1:P1,A2:P1,A3:P1" " S+ $SETUP_A123_PARTITIONS . . T:O2-0 O2-1 . 0 A1:1,A2:2,A3:3 A1:P1,A2:P1,A3:P1" " S+ $SETUP_A123_PARTITIONS . . . T:O3-0 O3-1 0 A1:1,A2:2,A3:3 A1:P1,A2:P1,A3:P1" " S+ $SETUP_A123_PARTITIONS . T:O1-0 O2-0 O1-1 . 0 A1:1,A2:,A3:3 A1:P1,A2:P1,A3:P1" " S+ $SETUP_A123_PARTITIONS . T:O1-0 O2-0 O2-1 . 0 A1:2-3,A2:2-3,A3:3 A1:P1,A2:P-1,A3:P-1" # test old-A1 old-A2 old-A3 old-B1 new-A1 new-A2 new-A3 new-B1 fail ECPUs Pstate # ---- ------ ------ ------ ------ ------ ------ ------ ------ ---- ----- ------ # # Incorrect change to cpuset.cpus invalidates partition root # # Adding CPUs to partition root that are not in parent's # cpuset.cpus is allowed, but those extra CPUs are ignored. " S+ C2-3:P1:S+ C3:P1 . . . C2-4 . . 0 A1:,A2:2-3 A1:P1,A2:P1" # Taking away all CPUs from parent or itself if there are tasks # will make the partition invalid. " S+ C2-3:P1:S+ C3:P1 . . T C2-3 . . 0 A1:2-3,A2:2-3 A1:P1,A2:P-1" " S+ C3:P1:S+ C3 . . T P1 . . 0 A1:3,A2:3 A1:P1,A2:P-1" " S+ $SETUP_A123_PARTITIONS . T:C2-3 . . . 0 A1:2-3,A2:2-3,A3:3 A1:P1,A2:P-1,A3:P-1" " S+ $SETUP_A123_PARTITIONS . T:C2-3:C1-3 . . . 0 A1:1,A2:2,A3:3 A1:P1,A2:P1,A3:P1" # Changing a partition root to member makes child partitions invalid " S+ C2-3:P1:S+ C3:P1 . . P0 . . . 0 A1:2-3,A2:3 A1:P0,A2:P-1" " S+ $SETUP_A123_PARTITIONS . C2-3 P0 . . 0 A1:2-3,A2:2-3,A3:3 A1:P1,A2:P0,A3:P-1" # cpuset.cpus can contains cpus not in parent's cpuset.cpus as long # as they overlap. " S+ C2-3:P1:S+ . . . . C3-4:P1 . . 0 A1:2,A2:3 A1:P1,A2:P1" # Deletion of CPUs distributed to child cgroup is allowed. " S+ C0-1:P1:S+ C1 . C2-3 C4-5 . . . 0 A1:4-5,A2:4-5" # To become a valid partition root, cpuset.cpus must overlap parent's # cpuset.cpus. " S+ C0-1:P1 . . C2-3 S+ C4-5:P1 . . 0 A1:0-1,A2:0-1 A1:P1,A2:P-1" # Enabling partition with child cpusets is allowed " S+ C0-1:S+ C1 . C2-3 P1 . . . 0 A1:0-1,A2:1 A1:P1" # A partition root with non-partition root parent is invalid, but it # can be made valid if its parent becomes a partition root too. " S+ C0-1:S+ C1 . C2-3 . P2 . . 0 A1:0-1,A2:1 A1:P0,A2:P-2" " S+ C0-1:S+ C1:P2 . C2-3 P1 . . . 0 A1:0,A2:1 A1:P1,A2:P2" # A non-exclusive cpuset.cpus change will invalidate partition and its siblings " S+ C0-1:P1 . . C2-3 C0-2 . . . 0 A1:0-2,B1:2-3 A1:P-1,B1:P0" " S+ C0-1:P1 . . P1:C2-3 C0-2 . . . 0 A1:0-2,B1:2-3 A1:P-1,B1:P-1" " S+ C0-1 . . P1:C2-3 C0-2 . . . 0 A1:0-2,B1:2-3 A1:P0,B1:P-1" # test old-A1 old-A2 old-A3 old-B1 new-A1 new-A2 new-A3 new-B1 fail ECPUs Pstate # ---- ------ ------ ------ ------ ------ ------ ------ ------ ---- ----- ------ # Failure cases: # A task cannot be added to a partition with no cpu " S+ C2-3:P1:S+ C3:P1 . . O2-0:T . . . 1 A1:,A2:3 A1:P1,A2:P1" ) # # Write to the cpu online file # $1 - <c>-<v> where <c> = cpu number, <v> value to be written # write_cpu_online() { CPU=${1%-*} VAL=${1#*-} CPUFILE=//sys/devices/system/cpu/cpu${CPU}/online if [[ $VAL -eq 0 ]] then OFFLINE_CPUS="$OFFLINE_CPUS $CPU" else [[ -n "$OFFLINE_CPUS" ]] && { OFFLINE_CPUS=$(echo $CPU $CPU $OFFLINE_CPUS | fmt -1 |\ sort | uniq -u) } fi echo $VAL > $CPUFILE pause 0.01 } # # Set controller state # $1 - cgroup directory # $2 - state # $3 - showerr # # The presence of ":" in state means transition from one to the next. # set_ctrl_state() { TMPMSG=/tmp/.msg_$$ CGRP=$1 STATE=$2 SHOWERR=${3}${VERBOSE} CTRL=${CTRL:=$CONTROLLER} HASERR=0 REDIRECT="2> $TMPMSG" [[ -z "$STATE" || "$STATE" = '.' ]] && return 0 rm -f $TMPMSG for CMD in $(echo $STATE | sed -e "s/:/ /g") do TFILE=$CGRP/cgroup.procs SFILE=$CGRP/cgroup.subtree_control PFILE=$CGRP/cpuset.cpus.partition CFILE=$CGRP/cpuset.cpus S=$(expr substr $CMD 1 1) if [[ $S = S ]] then PREFIX=${CMD#?} COMM="echo ${PREFIX}${CTRL} > $SFILE" eval $COMM $REDIRECT elif [[ $S = C ]] then CPUS=${CMD#?} COMM="echo $CPUS > $CFILE" eval $COMM $REDIRECT elif [[ $S = P ]] then VAL=${CMD#?} case $VAL in 0) VAL=member ;; 1) VAL=root ;; 2) VAL=isolated ;; *) echo "Invalid partition state - $VAL" exit 1 ;; esac COMM="echo $VAL > $PFILE" eval $COMM $REDIRECT elif [[ $S = O ]] then VAL=${CMD#?} write_cpu_online $VAL elif [[ $S = T ]] then COMM="echo 0 > $TFILE" eval $COMM $REDIRECT fi RET=$? [[ $RET -ne 0 ]] && { [[ -n "$SHOWERR" ]] && { echo "$COMM" cat $TMPMSG } HASERR=1 } pause 0.01 rm -f $TMPMSG done return $HASERR } set_ctrl_state_noerr() { CGRP=$1 STATE=$2 [[ -d $CGRP ]] || mkdir $CGRP set_ctrl_state $CGRP $STATE 1 [[ $? -ne 0 ]] && { echo "ERROR: Failed to set $2 to cgroup $1!" exit 1 } } online_cpus() { [[ -n "OFFLINE_CPUS" ]] && { for C in $OFFLINE_CPUS do write_cpu_online ${C}-1 done } } # # Return 1 if the list of effective cpus isn't the same as the initial list. # reset_cgroup_states() { echo 0 > $CGROUP2/cgroup.procs online_cpus rmdir A1/A2/A3 A1/A2 A1 B1 > /dev/null 2>&1 set_ctrl_state . S- pause 0.01 } dump_states() { for DIR in A1 A1/A2 A1/A2/A3 B1 do ECPUS=$DIR/cpuset.cpus.effective PRS=$DIR/cpuset.cpus.partition [[ -e $ECPUS ]] && echo "$ECPUS: $(cat $ECPUS)" [[ -e $PRS ]] && echo "$PRS: $(cat $PRS)" done } # # Check effective cpus # $1 - check string, format: <cgroup>:<cpu-list>[,<cgroup>:<cpu-list>]* # check_effective_cpus() { CHK_STR=$1 for CHK in $(echo $CHK_STR | sed -e "s/,/ /g") do set -- $(echo $CHK | sed -e "s/:/ /g") CGRP=$1 CPUS=$2 [[ $CGRP = A2 ]] && CGRP=A1/A2 [[ $CGRP = A3 ]] && CGRP=A1/A2/A3 FILE=$CGRP/cpuset.cpus.effective [[ -e $FILE ]] || return 1 [[ $CPUS = $(cat $FILE) ]] || return 1 done } # # Check cgroup states # $1 - check string, format: <cgroup>:<state>[,<cgroup>:<state>]* # check_cgroup_states() { CHK_STR=$1 for CHK in $(echo $CHK_STR | sed -e "s/,/ /g") do set -- $(echo $CHK | sed -e "s/:/ /g") CGRP=$1 STATE=$2 FILE= EVAL=$(expr substr $STATE 2 2) [[ $CGRP = A2 ]] && CGRP=A1/A2 [[ $CGRP = A3 ]] && CGRP=A1/A2/A3 case $STATE in P*) FILE=$CGRP/cpuset.cpus.partition ;; *) echo "Unknown state: $STATE!" exit 1 ;; esac VAL=$(cat $FILE) case "$VAL" in member) VAL=0 ;; root) VAL=1 ;; isolated) VAL=2 ;; "root invalid"*) VAL=-1 ;; "isolated invalid"*) VAL=-2 ;; esac [[ $EVAL != $VAL ]] && return 1 done return 0 } # # Run cpuset state transition test # $1 - test matrix name # # This test is somewhat fragile as delays (sleep x) are added in various # places to make sure state changes are fully propagated before the next # action. These delays may need to be adjusted if running in a slower machine. # run_state_test() { TEST=$1 CONTROLLER=cpuset CPULIST=0-6 I=0 eval CNT="\${#$TEST[@]}" reset_cgroup_states echo $CPULIST > cpuset.cpus echo root > cpuset.cpus.partition console_msg "Running state transition test ..." while [[ $I -lt $CNT ]] do echo "Running test $I ..." > /dev/console eval set -- "\${$TEST[$I]}" ROOT=$1 OLD_A1=$2 OLD_A2=$3 OLD_A3=$4 OLD_B1=$5 NEW_A1=$6 NEW_A2=$7 NEW_A3=$8 NEW_B1=$9 RESULT=${10} ECPUS=${11} STATES=${12} set_ctrl_state_noerr . $ROOT set_ctrl_state_noerr A1 $OLD_A1 set_ctrl_state_noerr A1/A2 $OLD_A2 set_ctrl_state_noerr A1/A2/A3 $OLD_A3 set_ctrl_state_noerr B1 $OLD_B1 RETVAL=0 set_ctrl_state A1 $NEW_A1; ((RETVAL += $?)) set_ctrl_state A1/A2 $NEW_A2; ((RETVAL += $?)) set_ctrl_state A1/A2/A3 $NEW_A3; ((RETVAL += $?)) set_ctrl_state B1 $NEW_B1; ((RETVAL += $?)) [[ $RETVAL -ne $RESULT ]] && { echo "Test $TEST[$I] failed result check!" eval echo \"\${$TEST[$I]}\" dump_states online_cpus exit 1 } [[ -n "$ECPUS" && "$ECPUS" != . ]] && { check_effective_cpus $ECPUS [[ $? -ne 0 ]] && { echo "Test $TEST[$I] failed effective CPU check!" eval echo \"\${$TEST[$I]}\" echo dump_states online_cpus exit 1 } } [[ -n "$STATES" ]] && { check_cgroup_states $STATES [[ $? -ne 0 ]] && { echo "FAILED: Test $TEST[$I] failed states check!" eval echo \"\${$TEST[$I]}\" echo dump_states online_cpus exit 1 } } reset_cgroup_states # # Check to see if effective cpu list changes # pause 0.05 NEWLIST=$(cat cpuset.cpus.effective) [[ $NEWLIST != $CPULIST ]] && { echo "Effective cpus changed to $NEWLIST after test $I!" exit 1 } [[ -n "$VERBOSE" ]] && echo "Test $I done." ((I++)) done echo "All $I tests of $TEST PASSED." echo member > cpuset.cpus.partition } # # Wait for inotify event for the given file and read it # $1: cgroup file to wait for # $2: file to store the read result # wait_inotify() { CGROUP_FILE=$1 OUTPUT_FILE=$2 $WAIT_INOTIFY $CGROUP_FILE cat $CGROUP_FILE > $OUTPUT_FILE } # # Test if inotify events are properly generated when going into and out of # invalid partition state. # test_inotify() { ERR=0 PRS=/tmp/.prs_$$ [[ -f $WAIT_INOTIFY ]] || { echo "wait_inotify not found, inotify test SKIPPED." return } pause 0.01 echo 1 > cpuset.cpus echo 0 > cgroup.procs echo root > cpuset.cpus.partition pause 0.01 rm -f $PRS wait_inotify $PWD/cpuset.cpus.partition $PRS & pause 0.01 set_ctrl_state . "O1-0" pause 0.01 check_cgroup_states ".:P-1" if [[ $? -ne 0 ]] then echo "FAILED: Inotify test - partition not invalid" ERR=1 elif [[ ! -f $PRS ]] then echo "FAILED: Inotify test - event not generated" ERR=1 kill %1 elif [[ $(cat $PRS) != "root invalid"* ]] then echo "FAILED: Inotify test - incorrect state" cat $PRS ERR=1 fi online_cpus echo member > cpuset.cpus.partition echo 0 > ../cgroup.procs if [[ $ERR -ne 0 ]] then exit 1 else echo "Inotify test PASSED" fi } run_state_test TEST_MATRIX test_isolated test_inotify echo "All tests PASSED." cd .. rmdir test |