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="`mktemp -d ${TMPDIR-/tmp}/kvm.sh.XXXXXX`"
18 trap 'rm -rf $T' 0
19
20 cd `dirname $scriptname`/../../../../../
21
22 # This script knows only English.
23 LANG=en_US.UTF-8; export LANG
24
25 dur=$((30*60))
26 dryrun=""
27 RCUTORTURE="`pwd`/tools/testing/selftests/rcutorture"; export RCUTORTURE
28 PATH=${RCUTORTURE}/bin:$PATH; export PATH
29 . functions.sh
30
31 TORTURE_ALLOTED_CPUS="`identify_qemu_vcpus`"
32 TORTURE_DEFCONFIG=defconfig
33 TORTURE_BOOT_IMAGE=""
34 TORTURE_BUILDONLY=
35 TORTURE_INITRD="$RCUTORTURE/initrd"; export TORTURE_INITRD
36 TORTURE_KCONFIG_ARG=""
37 TORTURE_KCONFIG_GDB_ARG=""
38 TORTURE_BOOT_GDB_ARG=""
39 TORTURE_QEMU_GDB_ARG=""
40 TORTURE_JITTER_START=""
41 TORTURE_JITTER_STOP=""
42 TORTURE_KCONFIG_KASAN_ARG=""
43 TORTURE_KCONFIG_KCSAN_ARG=""
44 TORTURE_KMAKE_ARG=""
45 TORTURE_QEMU_MEM=512
46 torture_qemu_mem_default=1
47 TORTURE_REMOTE=
48 TORTURE_SHUTDOWN_GRACE=180
49 TORTURE_SUITE=rcu
50 TORTURE_MOD=rcutorture
51 TORTURE_TRUST_MAKE=""
52 debuginfo="CONFIG_DEBUG_INFO_NONE=n CONFIG_DEBUG_INFO_DWARF_TOOLCHAIN_DEFAULT=y"
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 " --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 1
94 }
95
96 while test $# -gt 0
97 do
98 case "$1" in
99 --allcpus)
100 cpus=$TORTURE_ALLOTED_CPUS
101 max_cpus=$TORTURE_ALLOTED_CPUS
102 ;;
103 --bootargs|--bootarg)
104 checkarg --bootargs "(list of kernel boot arguments)" "$#" "$2" '.*' '^--'
105 TORTURE_BOOTARGS="$TORTURE_BOOTARGS $2"
106 shift
107 ;;
108 --bootimage)
109 checkarg --bootimage "(relative path to kernel boot image)" "$#" "$2" '[a-zA-Z0-9][a-zA-Z0-9_]*' '^--'
110 TORTURE_BOOT_IMAGE="$2"
111 shift
112 ;;
113 --buildonly|--build-only)
114 TORTURE_BUILDONLY=1
115 ;;
116 --configs|--config)
117 checkarg --configs "(list of config files)" "$#" "$2" '^[^/.a-z]\+$' '^--'
118 configs="$configs $2"
119 shift
120 ;;
121 --cpus)
122 checkarg --cpus "(number)" "$#" "$2" '^[0-9]*$' '^--'
123 cpus=$2
124 TORTURE_ALLOTED_CPUS="$2"
125 if test -z "$TORTURE_REMOTE"
126 then
127 max_cpus="`identify_qemu_vcpus`"
128 if test "$TORTURE_ALLOTED_CPUS" -gt "$max_cpus"
129 then
130 TORTURE_ALLOTED_CPUS=$max_cpus
131 fi
132 fi
133 shift
134 ;;
135 --datestamp)
136 checkarg --datestamp "(relative pathname)" "$#" "$2" '^[a-zA-Z0-9._/-]*$' '^--'
137 ds=$2
138 shift
139 ;;
140 --debug-info|--debuginfo)
141 if test -z "$TORTURE_KCONFIG_KCSAN_ARG" && test -z "$TORTURE_BOOT_GDB_ARG"
142 then
143 TORTURE_KCONFIG_KCSAN_ARG="$debuginfo"; export TORTURE_KCONFIG_KCSAN_ARG
144 TORTURE_BOOT_GDB_ARG="nokaslr"; export TORTURE_BOOT_GDB_ARG
145 else
146 echo "Ignored redundant --debug-info (implied by --kcsan &c)"
147 fi
148 ;;
149 --defconfig)
150 checkarg --defconfig "defconfigtype" "$#" "$2" '^[^/][^/]*$' '^--'
151 TORTURE_DEFCONFIG=$2
152 shift
153 ;;
154 --dryrun)
155 checkarg --dryrun "batches|sched|script" $# "$2" 'batches\|scenarios\|sched\|script' '^--'
156 dryrun=$2
157 shift
158 ;;
159 --duration)
160 checkarg --duration "(minutes)" $# "$2" '^[0-9][0-9]*\(s\|m\|h\|d\|\)$' '^error'
161 mult=60
162 if echo "$2" | grep -q 's$'
163 then
164 mult=1
165 elif echo "$2" | grep -q 'h$'
166 then
167 mult=3600
168 elif echo "$2" | grep -q 'd$'
169 then
170 mult=86400
171 fi
172 ts=`echo $2 | sed -e 's/[smhd]$//'`
173 dur=$(($ts*mult))
174 shift
175 ;;
176 --gdb)
177 TORTURE_KCONFIG_GDB_ARG="$debuginfo"; export TORTURE_KCONFIG_GDB_ARG
178 TORTURE_BOOT_GDB_ARG="nokaslr"; export TORTURE_BOOT_GDB_ARG
179 TORTURE_QEMU_GDB_ARG="-s -S"; export TORTURE_QEMU_GDB_ARG
180 ;;
181 --help|-h)
182 usage
183 ;;
184 --interactive)
185 TORTURE_QEMU_INTERACTIVE=1; export TORTURE_QEMU_INTERACTIVE
186 ;;
187 --jitter)
188 checkarg --jitter "(# threads [ sleep [ spin ] ])" $# "$2" '^-\{,1\}[0-9]\+\( \+[0-9]\+\)\{,2\} *$' '^error$'
189 jitter="$2"
190 shift
191 ;;
192 --kasan)
193 TORTURE_KCONFIG_KASAN_ARG="$debuginfo CONFIG_KASAN=y"; export TORTURE_KCONFIG_KASAN_ARG
194 if test -n "$torture_qemu_mem_default"
195 then
196 TORTURE_QEMU_MEM=2G
197 fi
198 ;;
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 shift
203 ;;
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_ARG
206 ;;
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 shift
211 ;;
212 --mac)
213 checkarg --mac "(MAC address)" $# "$2" '^\([0-9a-fA-F]\{2\}:\)\{5\}[0-9a-fA-F]\{2\}$' error
214 TORTURE_QEMU_MAC=$2
215 shift
216 ;;
217 --memory)
218 checkarg --memory "(memory size)" $# "$2" '^[0-9]\+[MG]\?$' error
219 TORTURE_QEMU_MEM=$2
220 torture_qemu_mem_default=
221 shift
222 ;;
223 --no-initrd)
224 TORTURE_INITRD=""; export TORTURE_INITRD
225 ;;
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 shift
230 ;;
231 --qemu-cmd)
232 checkarg --qemu-cmd "(qemu-system-...)" $# "$2" 'qemu-system-' '^--'
233 TORTURE_QEMU_CMD="$2"
234 shift
235 ;;
236 --remote)
237 TORTURE_REMOTE=1
238 ;;
239 --results)
240 checkarg --results "(absolute pathname)" "$#" "$2" '^/' '^error'
241 resdir=$2
242 shift
243 ;;
244 --shutdown-grace)
245 checkarg --shutdown-grace "(seconds)" "$#" "$2" '^[0-9]*$' '^error'
246 TORTURE_SHUTDOWN_GRACE=$2
247 shift
248 ;;
249 --torture)
250 checkarg --torture "(suite name)" "$#" "$2" '^\(lock\|rcu\|rcuscale\|refscale\|scf\|X.*\)$' '^--'
251 TORTURE_SUITE=$2
252 TORTURE_MOD="`echo $TORTURE_SUITE | sed -e 's/^\(lock\|rcu\|scf\)$/\1torture/'`"
253 shift
254 if test "$TORTURE_SUITE" = rcuscale || test "$TORTURE_SUITE" = refscale
255 then
256 # If you really want jitter for refscale or
257 # rcuscale, specify it after specifying the rcuscale
258 # or the refscale. (But why jitter in these cases?)
259 jitter=0
260 fi
261 ;;
262 --trust-make)
263 TORTURE_TRUST_MAKE="y"
264 ;;
265 *)
266 echo Unknown argument $1
267 usage
268 ;;
269 esac
270 shift
271 done
272
273 if test -n "$dryrun" || test -z "$TORTURE_INITRD" || tools/testing/selftests/rcutorture/bin/mkinitrd.sh
274 then
275 :
276 else
277 echo No initrd and unable to create one, aborting test >&2
278 exit 1
279 fi
280
281 CONFIGFRAG=${RCUTORTURE}/configs/${TORTURE_SUITE}; export CONFIGFRAG
282
283 defaultconfigs="`tr '\012' ' ' < $CONFIGFRAG/CFLIST`"
284 if test -z "$configs"
285 then
286 configs=$defaultconfigs
287 fi
288
289 if test -z "$resdir"
290 then
291 resdir=$RCUTORTURE/res
292 fi
293
294 # Create a file of test-name/#cpus pairs, sorted by decreasing #cpus.
295 configs_derep=
296 for CF in $configs
297 do
298 case $CF in
299 [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 $CF | sed -e 's/^[^*]*\*//'`
302 ;;
303 *)
304 config_reps=1
305 CF1=$CF
306 ;;
307 esac
308 for ((cur_rep=0;cur_rep<$config_reps;cur_rep++))
309 do
310 configs_derep="$configs_derep $CF1"
311 done
312 done
313 touch $T/cfgcpu
314 configs_derep="`echo $configs_derep | sed -e "s/\<CFLIST\>/$defaultconfigs/g"`"
315 if test -n "$TORTURE_KCONFIG_GDB_ARG"
316 then
317 if test "`echo $configs_derep | wc -w`" -gt 1
318 then
319 echo "The --config list is: $configs_derep."
320 echo "Only one --config permitted with --gdb, terminating."
321 exit 1
322 fi
323 fi
324 echo 'BEGIN {' > $T/cfgcpu.awk
325 for CF1 in `echo $configs_derep | tr -s ' ' '\012' | sort -u`
326 do
327 if test -f "$CONFIGFRAG/$CF1"
328 then
329 if echo "$TORTURE_KCONFIG_ARG" | grep -q '\<CONFIG_NR_CPUS='
330 then
331 echo "$TORTURE_KCONFIG_ARG" | tr -s ' ' | tr ' ' '\012' > $T/KCONFIG_ARG
332 cpu_count=`configNR_CPUS.sh $T/KCONFIG_ARG`
333 else
334 cpu_count=`configNR_CPUS.sh $CONFIGFRAG/$CF1`
335 fi
336 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.awk
339 else
340 echo "The --configs file $CF1 does not exist, terminating."
341 exit 1
342 fi
343 done
344 cat << '___EOF___' >> $T/cfgcpu.awk
345 }
346 {
347 for (i = 1; i <= NF; i++)
348 print $i, scenariocpu[$i];
349 }
350 ___EOF___
351 echo $configs_derep | awk -f $T/cfgcpu.awk > $T/cfgcpu
352 sort -k2nr $T/cfgcpu -T="$T" > $T/cfgcpu.sort
353
354 # Use a greedy bin-packing algorithm, sorting the list accordingly.
355 awk < $T/cfgcpu.sort > $T/cfgcpu.pack -v ncpus=$cpus '
356 BEGIN {
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
367 END {
368 batch = 0;
369 nc = -1;
370
371 # Each pass through the following loop creates on test batch that
372 # can be executed concurrently given ncpus. Note that a given test
373 # that requires more than the available CPUs will run in its own
374 # 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 one
380 # 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.
403 cat << ___EOF___ > $T/script
404 CONFIGFRAG="$CONFIGFRAG"; export CONFIGFRAG
405 RCUTORTURE="$RCUTORTURE"; export RCUTORTURE
406 PATH="$PATH"; export PATH
407 TORTURE_ALLOTED_CPUS="$TORTURE_ALLOTED_CPUS"; export TORTURE_ALLOTED_CPUS
408 TORTURE_BOOT_IMAGE="$TORTURE_BOOT_IMAGE"; export TORTURE_BOOT_IMAGE
409 TORTURE_BUILDONLY="$TORTURE_BUILDONLY"; export TORTURE_BUILDONLY
410 TORTURE_DEFCONFIG="$TORTURE_DEFCONFIG"; export TORTURE_DEFCONFIG
411 TORTURE_INITRD="$TORTURE_INITRD"; export TORTURE_INITRD
412 TORTURE_KCONFIG_ARG="$TORTURE_KCONFIG_ARG"; export TORTURE_KCONFIG_ARG
413 TORTURE_KCONFIG_GDB_ARG="$TORTURE_KCONFIG_GDB_ARG"; export TORTURE_KCONFIG_GDB_ARG
414 TORTURE_BOOT_GDB_ARG="$TORTURE_BOOT_GDB_ARG"; export TORTURE_BOOT_GDB_ARG
415 TORTURE_QEMU_GDB_ARG="$TORTURE_QEMU_GDB_ARG"; export TORTURE_QEMU_GDB_ARG
416 TORTURE_KCONFIG_KASAN_ARG="$TORTURE_KCONFIG_KASAN_ARG"; export TORTURE_KCONFIG_KASAN_ARG
417 TORTURE_KCONFIG_KCSAN_ARG="$TORTURE_KCONFIG_KCSAN_ARG"; export TORTURE_KCONFIG_KCSAN_ARG
418 TORTURE_KMAKE_ARG="$TORTURE_KMAKE_ARG"; export TORTURE_KMAKE_ARG
419 TORTURE_MOD="$TORTURE_MOD"; export TORTURE_MOD
420 TORTURE_QEMU_CMD="$TORTURE_QEMU_CMD"; export TORTURE_QEMU_CMD
421 TORTURE_QEMU_INTERACTIVE="$TORTURE_QEMU_INTERACTIVE"; export TORTURE_QEMU_INTERACTIVE
422 TORTURE_QEMU_MAC="$TORTURE_QEMU_MAC"; export TORTURE_QEMU_MAC
423 TORTURE_QEMU_MEM="$TORTURE_QEMU_MEM"; export TORTURE_QEMU_MEM
424 TORTURE_SHUTDOWN_GRACE="$TORTURE_SHUTDOWN_GRACE"; export TORTURE_SHUTDOWN_GRACE
425 TORTURE_SUITE="$TORTURE_SUITE"; export TORTURE_SUITE
426 TORTURE_TRUST_MAKE="$TORTURE_TRUST_MAKE"; export TORTURE_TRUST_MAKE
427 if ! test -e $resdir
428 then
429 mkdir -p "$resdir" || :
430 fi
431 mkdir -p $resdir/$ds
432 TORTURE_RESDIR="$resdir/$ds"; export TORTURE_RESDIR
433 TORTURE_STOPFILE="$resdir/$ds/STOP.1"; export TORTURE_STOPFILE
434 echo Results directory: $resdir/$ds
435 echo $scriptname $args
436 touch $resdir/$ds/log
437 echo $scriptname $args >> $resdir/$ds/log
438 echo ${TORTURE_SUITE} > $resdir/$ds/torture_suite
439 echo Build directory: `pwd` > $resdir/$ds/testid.txt
440 if test -d .git
441 then
442 echo Current commit: `git rev-parse HEAD` >> $resdir/$ds/testid.txt
443 echo >> $resdir/$ds/testid.txt
444 echo ' ---' Output of "'"git status"'": >> $resdir/$ds/testid.txt
445 git status >> $resdir/$ds/testid.txt
446 echo >> $resdir/$ds/testid.txt
447 echo >> $resdir/$ds/testid.txt
448 echo ' ---' Output of "'"git diff HEAD"'": >> $resdir/$ds/testid.txt
449 git diff HEAD >> $resdir/$ds/testid.txt
450 fi
451 ___EOF___
452 kvm-assign-cpus.sh /sys/devices/system/node > $T/cpuarray.awk
453 kvm-get-cpus-script.sh $T/cpuarray.awk $T/dumpbatches.awk
454 cat << '___EOF___' >> $T/dumpbatches.awk
455 BEGIN {
456 i = 0;
457 }
458
459 {
460 cf[i] = $1;
461 cpus[i] = $2;
462 i++;
463 }
464
465 # Dump out the scripting required to run one test batch.
466 function dump(first, pastlast, batchnum, affinitylist)
467 {
468 print "echo ----Start batch " batchnum ": `date` | tee -a " rd "log";
469 print "needqemurun="
470 jn=1
471 njitter = 0;
472 split(jitter, ja);
473 if (ja[1] == -1 && ncpus == 0)
474 njitter = 1;
475 else if (ja[1] == -1)
476 njitter = ncpus;
477 else
478 njitter = ja[1];
479 print "TORTURE_JITTER_START=\". jitterstart.sh " njitter " " rd " " dur " " ja[2] " " ja[3] "\"; export TORTURE_JITTER_START";
480 print "TORTURE_JITTER_STOP=\". jitterstop.sh " rd " \"; export TORTURE_JITTER_STOP"
481 for (j = first; j < pastlast; j++) {
482 cpusr[jn] = cpus[j];
483 if (cfrep[cf[j]] == "") {
484 cfr[jn] = cf[j];
485 cfrep[cf[j]] = 1;
486 } else {
487 cfrep[cf[j]]++;
488 cfr[jn] = cf[j] "." cfrep[cf[j]];
489 }
490 builddir=rd cfr[jn] "/build";
491 if (cpusr[jn] > ncpus && ncpus != 0)
492 ovf = "-ovf";
493 else
494 ovf = "";
495 print "echo ", cfr[jn], cpusr[jn] ovf ": Starting build. `date` | tee -a " rd "log";
496 print "mkdir " rd cfr[jn] " || :";
497 print "touch " builddir ".wait";
498 affinitylist = "";
499 if (gotcpus()) {
500 affinitylist = nextcpus(cpusr[jn]);
501 }
502 if (affinitylist ~ /^[0-9,-][0-9,-]*$/)
503 print "export TORTURE_AFFINITY=" affinitylist;
504 else
505 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 else
521 print "mv " builddir ".ready " builddir ".run"
522 print "runfiles=\"$runfiles " builddir ".run\""
523 fi
524 print "if test -f \"" rd cfr[j] "/builtkernel\""
525 print "then"
526 print "\techo ----", cfr[j], cpusr[j] ovf ": Kernel present. `date` | tee -a " rd "log";
527 print "\tneedqemurun=1"
528 print "fi"
529 }
530 if (TORTURE_BUILDONLY && njitter != 0) {
531 njitter = 0;
532 print "echo Build-only run, so suppressing jitter | tee -a " rd "log"
533 }
534 if (TORTURE_BUILDONLY) {
535 print "needqemurun="
536 }
537 print "if test -n \"$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
557 END {
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___
585 awk < $T/cfgcpu.pack \
586 -v TORTURE_BUILDONLY="$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 >> $T/script
596 echo kvm-end-run-stats.sh "$resdir/$ds" "$starttime" >> $T/script
597
598 # Extract the tests and their batches from the script.
599 grep -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, $2
608 }' > $T/batches
609
610 # As above, but one line per batch.
611 grep -v '^#' $T/batches | awk '
612 BEGIN {
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
625 END {
626 print ++n ". " curbatch;
627 }' > $T/scenarios
628
629 if test "$dryrun" = script
630 then
631 cat $T/script
632 exit 0
633 elif test "$dryrun" = sched
634 then
635 # 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: $nbuilds
642 nbatches="`grep 'Start batch' $T/script | grep -v ">>" | wc -l`"
643 echo Total number of batches: $nbatches
644 exit 0
645 elif test "$dryrun" = batches
646 then
647 cat $T/batches
648 exit 0
649 elif test "$dryrun" = scenarios
650 then
651 cat $T/scenarios
652 exit 0
653 else
654 # Not a dryrun. Record the batches and the number of CPUs, then run the script.
655 bash $T/script
656 ret=$?
657 cp $T/batches $resdir/$ds/batches
658 cp $T/scenarios $resdir/$ds/scenarios
659 echo '#' cpus=$cpus >> $resdir/$ds/batches
660 exit $ret
661 fi
662
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_barrier
664 # Function-graph tracing: ftrace=function_graph ftrace_graph_filter=sched_setaffinity,migration_cpu_stop
665 # Also --kconfig "CONFIG_FUNCTION_TRACER=y CONFIG_FUNCTION_GRAPH_TRACER=y"
666 # Control buffer size: --bootargs trace_buf_size=3k
667 # Get trace-buffer dumps on all oopses: --bootargs ftrace_dump_on_oops
668 # Ditto, but dump only the oopsing CPU: --bootargs ftrace_dump_on_oops=orig_cpu
669 # Heavy-handed way to also dump on warnings: --bootargs panic_on_warn=1
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