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Linux 6.16-rc6
[linux-2.6-block.git] / tools / testing / selftests / rcutorture / bin / kvm.sh
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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_NO_AFFINITY=""
46TORTURE_QEMU_MEM=512
47torture_qemu_mem_default=1
48TORTURE_REMOTE=
49TORTURE_SHUTDOWN_GRACE=180
50TORTURE_SUITE=rcu
51TORTURE_MOD=rcutorture
52TORTURE_TRUST_MAKE=""
53debuginfo="CONFIG_DEBUG_INFO_NONE=n CONFIG_DEBUG_INFO_DWARF_TOOLCHAIN_DEFAULT=y"
54resdir=""
55configs=""
56cpus=0
57ds=`date +%Y.%m.%d-%H.%M.%S`
58jitter="-1"
59
60startdate="`date`"
61starttime="`get_starttime`"
62
63usage () {
64 echo "Usage: $scriptname optional arguments:"
65 echo " --allcpus"
66 echo " --bootargs kernel-boot-arguments"
67 echo " --bootimage relative-path-to-kernel-boot-image"
68 echo " --buildonly"
69 echo " --configs \"config-file list w/ repeat factor (3*TINY01)\""
70 echo " --cpus N"
71 echo " --datestamp string"
72 echo " --defconfig string"
73 echo " --debug-info"
74 echo " --dryrun batches|scenarios|sched|script"
75 echo " --duration minutes | <seconds>s | <hours>h | <days>d"
76 echo " --gdb"
77 echo " --help"
78 echo " --interactive"
79 echo " --jitter N [ maxsleep (us) [ maxspin (us) ] ]"
80 echo " --kasan"
81 echo " --kconfig Kconfig-options"
82 echo " --kcsan"
83 echo " --kmake-arg kernel-make-arguments"
84 echo " --mac nn:nn:nn:nn:nn:nn"
85 echo " --memory megabytes|nnnG"
86 echo " --no-affinity"
87 echo " --no-initrd"
88 echo " --qemu-args qemu-arguments"
89 echo " --qemu-cmd qemu-system-..."
90 echo " --remote"
91 echo " --results absolute-pathname"
92 echo " --shutdown-grace seconds"
93 echo " --torture lock|rcu|rcuscale|refscale|scf|X*"
94 echo " --trust-make"
95 exit 1
96}
97
98while test $# -gt 0
99do
100 case "$1" in
101 --allcpus)
102 cpus=$TORTURE_ALLOTED_CPUS
103 max_cpus=$TORTURE_ALLOTED_CPUS
104 ;;
105 --bootargs|--bootarg)
106 checkarg --bootargs "(list of kernel boot arguments)" "$#" "$2" '.*' '^--'
107 TORTURE_BOOTARGS="$TORTURE_BOOTARGS $2"
108 shift
109 ;;
110 --bootimage)
111 checkarg --bootimage "(relative path to kernel boot image)" "$#" "$2" '[a-zA-Z0-9][a-zA-Z0-9_]*' '^--'
112 TORTURE_BOOT_IMAGE="$2"
113 shift
114 ;;
115 --buildonly|--build-only)
116 TORTURE_BUILDONLY=1
117 ;;
118 --configs|--config)
119 checkarg --configs "(list of config files)" "$#" "$2" '^[^/.a-z]\+$' '^--'
120 configs="$configs $2"
121 shift
122 ;;
123 --cpus)
124 checkarg --cpus "(number)" "$#" "$2" '^[0-9]*$' '^--'
125 cpus=$2
126 TORTURE_ALLOTED_CPUS="$2"
127 if test -z "$TORTURE_REMOTE"
128 then
129 max_cpus="`identify_qemu_vcpus`"
130 if test "$TORTURE_ALLOTED_CPUS" -gt "$max_cpus"
131 then
132 TORTURE_ALLOTED_CPUS=$max_cpus
133 fi
134 fi
135 shift
136 ;;
137 --datestamp)
138 checkarg --datestamp "(relative pathname)" "$#" "$2" '^[a-zA-Z0-9._/-]*$' '^--'
139 ds=$2
140 shift
141 ;;
142 --debug-info|--debuginfo)
143 if test -z "$TORTURE_KCONFIG_KCSAN_ARG" && test -z "$TORTURE_BOOT_GDB_ARG"
144 then
145 TORTURE_KCONFIG_KCSAN_ARG="$debuginfo"; export TORTURE_KCONFIG_KCSAN_ARG
146 TORTURE_BOOT_GDB_ARG="nokaslr"; export TORTURE_BOOT_GDB_ARG
147 else
148 echo "Ignored redundant --debug-info (implied by --kcsan &c)"
149 fi
150 ;;
151 --defconfig)
152 checkarg --defconfig "defconfigtype" "$#" "$2" '^[^/][^/]*$' '^--'
153 TORTURE_DEFCONFIG=$2
154 shift
155 ;;
156 --dryrun)
157 checkarg --dryrun "batches|sched|script" $# "$2" 'batches\|scenarios\|sched\|script' '^--'
158 dryrun=$2
159 shift
160 ;;
161 --duration)
162 checkarg --duration "(minutes)" $# "$2" '^[0-9][0-9]*\(s\|m\|h\|d\|\)$' '^error'
163 mult=60
164 if echo "$2" | grep -q 's$'
165 then
166 mult=1
167 elif echo "$2" | grep -q 'h$'
168 then
169 mult=3600
170 elif echo "$2" | grep -q 'd$'
171 then
172 mult=86400
173 fi
174 ts=`echo $2 | sed -e 's/[smhd]$//'`
175 dur=$(($ts*mult))
176 shift
177 ;;
178 --gdb)
179 TORTURE_KCONFIG_GDB_ARG="$debuginfo"; export TORTURE_KCONFIG_GDB_ARG
180 TORTURE_BOOT_GDB_ARG="nokaslr"; export TORTURE_BOOT_GDB_ARG
181 TORTURE_QEMU_GDB_ARG="-s -S"; export TORTURE_QEMU_GDB_ARG
182 ;;
183 --help|-h)
184 usage
185 ;;
186 --interactive)
187 TORTURE_QEMU_INTERACTIVE=1; export TORTURE_QEMU_INTERACTIVE
188 ;;
189 --jitter)
190 checkarg --jitter "(# threads [ sleep [ spin ] ])" $# "$2" '^-\{,1\}[0-9]\+\( \+[0-9]\+\)\{,2\} *$' '^error$'
191 jitter="$2"
192 shift
193 ;;
194 --kasan)
195 TORTURE_KCONFIG_KASAN_ARG="$debuginfo CONFIG_KASAN=y"; export TORTURE_KCONFIG_KASAN_ARG
196 if test -n "$torture_qemu_mem_default"
197 then
198 TORTURE_QEMU_MEM=2G
199 fi
200 ;;
201 --kconfig|--kconfigs)
202 checkarg --kconfig "(Kconfig options)" $# "$2" '^\(#CHECK#\)\?CONFIG_[A-Z0-9_]\+=\([ynm]\|[0-9]\+\|"[^"]*"\)\( \(#CHECK#\)\?CONFIG_[A-Z0-9_]\+=\([ynm]\|[0-9]\+\|"[^"]*"\)\)*$' '^error$'
203 TORTURE_KCONFIG_ARG="`echo "$TORTURE_KCONFIG_ARG $2" | sed -e 's/^ *//' -e 's/ *$//'`"
204 shift
205 ;;
206 --kcsan)
207 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
208 ;;
209 --kmake-arg|--kmake-args)
210 checkarg --kmake-arg "(kernel make arguments)" $# "$2" '.*' '^error$'
211 TORTURE_KMAKE_ARG="`echo "$TORTURE_KMAKE_ARG $2" | sed -e 's/^ *//' -e 's/ *$//'`"
212 shift
213 ;;
214 --mac)
215 checkarg --mac "(MAC address)" $# "$2" '^\([0-9a-fA-F]\{2\}:\)\{5\}[0-9a-fA-F]\{2\}$' error
216 TORTURE_QEMU_MAC=$2
217 shift
218 ;;
219 --memory)
220 checkarg --memory "(memory size)" $# "$2" '^[0-9]\+[MG]\?$' error
221 TORTURE_QEMU_MEM=$2
222 torture_qemu_mem_default=
223 shift
224 ;;
225 --no-affinity)
226 TORTURE_NO_AFFINITY="no-affinity"
227 ;;
228 --no-initrd)
229 TORTURE_INITRD=""; export TORTURE_INITRD
230 ;;
231 --qemu-args|--qemu-arg)
232 checkarg --qemu-args "(qemu arguments)" $# "$2" '^-' '^error'
233 TORTURE_QEMU_ARG="`echo "$TORTURE_QEMU_ARG $2" | sed -e 's/^ *//' -e 's/ *$//'`"
234 shift
235 ;;
236 --qemu-cmd)
237 checkarg --qemu-cmd "(qemu-system-...)" $# "$2" 'qemu-system-' '^--'
238 TORTURE_QEMU_CMD="$2"
239 shift
240 ;;
241 --remote)
242 TORTURE_REMOTE=1
243 ;;
244 --results)
245 checkarg --results "(absolute pathname)" "$#" "$2" '^/' '^error'
246 resdir=$2
247 shift
248 ;;
249 --shutdown-grace)
250 checkarg --shutdown-grace "(seconds)" "$#" "$2" '^[0-9]*$' '^error'
251 TORTURE_SHUTDOWN_GRACE=$2
252 shift
253 ;;
254 --torture)
255 checkarg --torture "(suite name)" "$#" "$2" '^\(lock\|rcu\|rcuscale\|refscale\|scf\|X.*\)$' '^--'
256 TORTURE_SUITE=$2
257 TORTURE_MOD="`echo $TORTURE_SUITE | sed -e 's/^\(lock\|rcu\|scf\)$/\1torture/'`"
258 shift
259 if test "$TORTURE_SUITE" = rcuscale || test "$TORTURE_SUITE" = refscale
260 then
261 # If you really want jitter for refscale or
262 # rcuscale, specify it after specifying the rcuscale
263 # or the refscale. (But why jitter in these cases?)
264 jitter=0
265 fi
266 ;;
267 --trust-make)
268 TORTURE_TRUST_MAKE="y"
269 ;;
270 *)
271 echo Unknown argument $1
272 usage
273 ;;
274 esac
275 shift
276done
277
278if test -n "$dryrun" || test -z "$TORTURE_INITRD" || tools/testing/selftests/rcutorture/bin/mkinitrd.sh
279then
280 :
281else
282 echo No initrd and unable to create one, aborting test >&2
283 exit 1
284fi
285
286CONFIGFRAG=${RCUTORTURE}/configs/${TORTURE_SUITE}; export CONFIGFRAG
287
288defaultconfigs="`tr '\012' ' ' < $CONFIGFRAG/CFLIST`"
289if test -z "$configs"
290then
291 configs=$defaultconfigs
292fi
293
294if test -z "$resdir"
295then
296 resdir=$RCUTORTURE/res
297fi
298
299# Create a file of test-name/#cpus pairs, sorted by decreasing #cpus.
300configs_derep=
301for CF in $configs
302do
303 case $CF in
304 [0-9]\**|[0-9][0-9]\**|[0-9][0-9][0-9]\**|[0-9][0-9][0-9][0-9]\**)
305 config_reps=`echo $CF | sed -e 's/\*.*$//'`
306 CF1=`echo $CF | sed -e 's/^[^*]*\*//'`
307 ;;
308 *)
309 config_reps=1
310 CF1=$CF
311 ;;
312 esac
313 for ((cur_rep=0;cur_rep<$config_reps;cur_rep++))
314 do
315 configs_derep="$configs_derep $CF1"
316 done
317done
318touch $T/cfgcpu
319configs_derep="`echo $configs_derep | sed -e "s/\<CFLIST\>/$defaultconfigs/g"`"
320if test -n "$TORTURE_KCONFIG_GDB_ARG"
321then
322 if test "`echo $configs_derep | wc -w`" -gt 1
323 then
324 echo "The --config list is: $configs_derep."
325 echo "Only one --config permitted with --gdb, terminating."
326 exit 1
327 fi
328fi
329echo 'BEGIN {' > $T/cfgcpu.awk
330for CF1 in `echo $configs_derep | tr -s ' ' '\012' | sort -u`
331do
332 if test -f "$CONFIGFRAG/$CF1"
333 then
334 if echo "$TORTURE_KCONFIG_ARG" | grep -q '\<CONFIG_NR_CPUS='
335 then
336 echo "$TORTURE_KCONFIG_ARG" | tr -s ' ' | tr ' ' '\012' > $T/KCONFIG_ARG
337 cpu_count=`configNR_CPUS.sh $T/KCONFIG_ARG`
338 else
339 cpu_count=`configNR_CPUS.sh $CONFIGFRAG/$CF1`
340 fi
341 cpu_count=`configfrag_boot_cpus "$TORTURE_BOOTARGS" "$CONFIGFRAG/$CF1" "$cpu_count"`
342 cpu_count=`configfrag_boot_maxcpus "$TORTURE_BOOTARGS" "$CONFIGFRAG/$CF1" "$cpu_count"`
343 echo 'scenariocpu["'"$CF1"'"] = '"$cpu_count"';' >> $T/cfgcpu.awk
344 else
345 echo "The --configs file $CF1 does not exist, terminating."
346 exit 1
347 fi
348done
349cat << '___EOF___' >> $T/cfgcpu.awk
350}
351{
352 for (i = 1; i <= NF; i++)
353 print $i, scenariocpu[$i];
354}
355___EOF___
356echo $configs_derep | awk -f $T/cfgcpu.awk > $T/cfgcpu
357sort -k2nr $T/cfgcpu -T="$T" > $T/cfgcpu.sort
358
359# Use a greedy bin-packing algorithm, sorting the list accordingly.
360awk < $T/cfgcpu.sort > $T/cfgcpu.pack -v ncpus=$cpus '
361BEGIN {
362 njobs = 0;
363}
364
365{
366 # Read file of tests and corresponding required numbers of CPUs.
367 cf[njobs] = $1;
368 cpus[njobs] = $2;
369 njobs++;
370}
371
372END {
373 batch = 0;
374 nc = -1;
375
376 # Each pass through the following loop creates on test batch that
377 # can be executed concurrently given ncpus. Note that a given test
378 # that requires more than the available CPUs will run in its own
379 # batch. Such tests just have to make do with what is available.
380 while (nc != ncpus) {
381 batch++;
382 nc = ncpus;
383
384 # Each pass through the following loop considers one
385 # test for inclusion in the current batch.
386 for (i = 0; i < njobs; i++) {
387 if (done[i])
388 continue; # Already part of a batch.
389 if (nc >= cpus[i] || nc == ncpus) {
390
391 # This test fits into the current batch.
392 done[i] = batch;
393 nc -= cpus[i];
394 if (nc <= 0)
395 break; # Too-big test in its own batch.
396 }
397 }
398 }
399
400 # Dump out the tests in batch order.
401 for (b = 1; b <= batch; b++)
402 for (i = 0; i < njobs; i++)
403 if (done[i] == b)
404 print cf[i], cpus[i];
405}'
406
407# Generate a script to execute the tests in appropriate batches.
408cat << ___EOF___ > $T/script
409CONFIGFRAG="$CONFIGFRAG"; export CONFIGFRAG
410RCUTORTURE="$RCUTORTURE"; export RCUTORTURE
411PATH="$PATH"; export PATH
412TORTURE_ALLOTED_CPUS="$TORTURE_ALLOTED_CPUS"; export TORTURE_ALLOTED_CPUS
413TORTURE_BOOT_IMAGE="$TORTURE_BOOT_IMAGE"; export TORTURE_BOOT_IMAGE
414TORTURE_BUILDONLY="$TORTURE_BUILDONLY"; export TORTURE_BUILDONLY
415TORTURE_DEFCONFIG="$TORTURE_DEFCONFIG"; export TORTURE_DEFCONFIG
416TORTURE_INITRD="$TORTURE_INITRD"; export TORTURE_INITRD
417TORTURE_KCONFIG_ARG="$TORTURE_KCONFIG_ARG"; export TORTURE_KCONFIG_ARG
418TORTURE_KCONFIG_GDB_ARG="$TORTURE_KCONFIG_GDB_ARG"; export TORTURE_KCONFIG_GDB_ARG
419TORTURE_BOOT_GDB_ARG="$TORTURE_BOOT_GDB_ARG"; export TORTURE_BOOT_GDB_ARG
420TORTURE_QEMU_GDB_ARG="$TORTURE_QEMU_GDB_ARG"; export TORTURE_QEMU_GDB_ARG
421TORTURE_KCONFIG_KASAN_ARG="$TORTURE_KCONFIG_KASAN_ARG"; export TORTURE_KCONFIG_KASAN_ARG
422TORTURE_KCONFIG_KCSAN_ARG="$TORTURE_KCONFIG_KCSAN_ARG"; export TORTURE_KCONFIG_KCSAN_ARG
423TORTURE_KMAKE_ARG="$TORTURE_KMAKE_ARG"; export TORTURE_KMAKE_ARG
424TORTURE_MOD="$TORTURE_MOD"; export TORTURE_MOD
425TORTURE_NO_AFFINITY="$TORTURE_NO_AFFINITY"; export TORTURE_NO_AFFINITY
426TORTURE_QEMU_CMD="$TORTURE_QEMU_CMD"; export TORTURE_QEMU_CMD
427TORTURE_QEMU_INTERACTIVE="$TORTURE_QEMU_INTERACTIVE"; export TORTURE_QEMU_INTERACTIVE
428TORTURE_QEMU_MAC="$TORTURE_QEMU_MAC"; export TORTURE_QEMU_MAC
429TORTURE_QEMU_MEM="$TORTURE_QEMU_MEM"; export TORTURE_QEMU_MEM
430TORTURE_SHUTDOWN_GRACE="$TORTURE_SHUTDOWN_GRACE"; export TORTURE_SHUTDOWN_GRACE
431TORTURE_SUITE="$TORTURE_SUITE"; export TORTURE_SUITE
432TORTURE_TRUST_MAKE="$TORTURE_TRUST_MAKE"; export TORTURE_TRUST_MAKE
433if ! test -e $resdir
434then
435 mkdir -p "$resdir" || :
436fi
437mkdir -p $resdir/$ds
438TORTURE_RESDIR="$resdir/$ds"; export TORTURE_RESDIR
439TORTURE_STOPFILE="$resdir/$ds/STOP.1"; export TORTURE_STOPFILE
440echo Results directory: $resdir/$ds
441echo $scriptname $args
442touch $resdir/$ds/log
443echo $scriptname $args >> $resdir/$ds/log
444echo ${TORTURE_SUITE} > $resdir/$ds/torture_suite
445echo Build directory: `pwd` > $resdir/$ds/testid.txt
446if test -d .git
447then
448 echo Current commit: `git rev-parse HEAD` >> $resdir/$ds/testid.txt
449 echo >> $resdir/$ds/testid.txt
450 echo ' ---' Output of "'"git status"'": >> $resdir/$ds/testid.txt
451 git status >> $resdir/$ds/testid.txt
452 echo >> $resdir/$ds/testid.txt
453 echo >> $resdir/$ds/testid.txt
454 echo ' ---' Output of "'"git diff HEAD"'": >> $resdir/$ds/testid.txt
455 git diff HEAD >> $resdir/$ds/testid.txt
456fi
457___EOF___
458kvm-assign-cpus.sh /sys/devices/system/node > $T/cpuarray.awk
459kvm-get-cpus-script.sh $T/cpuarray.awk $T/dumpbatches.awk
460cat << '___EOF___' >> $T/dumpbatches.awk
461BEGIN {
462 i = 0;
463}
464
465{
466 cf[i] = $1;
467 cpus[i] = $2;
468 i++;
469}
470
471# Dump out the scripting required to run one test batch.
472function dump(first, pastlast, batchnum, affinitylist)
473{
474 print "echo ----Start batch " batchnum ": `date` | tee -a " rd "log";
475 print "needqemurun="
476 jn=1
477 njitter = 0;
478 split(jitter, ja);
479 if (ja[1] == -1 && ncpus == 0)
480 njitter = 1;
481 else if (ja[1] == -1)
482 njitter = ncpus;
483 else
484 njitter = ja[1];
485 print "TORTURE_JITTER_START=\". jitterstart.sh " njitter " " rd " " dur " " ja[2] " " ja[3] "\"; export TORTURE_JITTER_START";
486 print "TORTURE_JITTER_STOP=\". jitterstop.sh " rd " \"; export TORTURE_JITTER_STOP"
487 for (j = first; j < pastlast; j++) {
488 cpusr[jn] = cpus[j];
489 if (cfrep[cf[j]] == "") {
490 cfr[jn] = cf[j];
491 cfrep[cf[j]] = 1;
492 } else {
493 cfrep[cf[j]]++;
494 cfr[jn] = cf[j] "." cfrep[cf[j]];
495 }
496 builddir=rd cfr[jn] "/build";
497 if (cpusr[jn] > ncpus && ncpus != 0)
498 ovf = "-ovf";
499 else
500 ovf = "";
501 print "echo ", cfr[jn], cpusr[jn] ovf ": Starting build. `date` | tee -a " rd "log";
502 print "mkdir " rd cfr[jn] " || :";
503 print "touch " builddir ".wait";
504 affinitylist = "";
505 if (gotcpus()) {
506 affinitylist = nextcpus(cpusr[jn]);
507 }
508 if (affinitylist ~ /^[0-9,-][0-9,-]*$/)
509 print "export TORTURE_AFFINITY=" affinitylist;
510 else
511 print "export TORTURE_AFFINITY=";
512 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 &"
513 print "echo ", cfr[jn], cpusr[jn] ovf ": Waiting for build to complete. `date` | tee -a " rd "log";
514 print "while test -f " builddir ".wait"
515 print "do"
516 print "\tsleep 1"
517 print "done"
518 print "echo ", cfr[jn], cpusr[jn] ovf ": Build complete. `date` | tee -a " rd "log";
519 jn++;
520 }
521 print "runfiles="
522 for (j = 1; j < jn; j++) {
523 builddir=rd cfr[j] "/build";
524 if (TORTURE_BUILDONLY)
525 print "rm -f " builddir ".ready"
526 else
527 print "mv " builddir ".ready " builddir ".run"
528 print "runfiles=\"$runfiles " builddir ".run\""
529 fi
530 print "if test -f \"" rd cfr[j] "/builtkernel\""
531 print "then"
532 print "\techo ----", cfr[j], cpusr[j] ovf ": Kernel present. `date` | tee -a " rd "log";
533 print "\tneedqemurun=1"
534 print "fi"
535 }
536 if (TORTURE_BUILDONLY && njitter != 0) {
537 njitter = 0;
538 print "echo Build-only run, so suppressing jitter | tee -a " rd "log"
539 }
540 if (TORTURE_BUILDONLY) {
541 print "needqemurun="
542 }
543 print "if test -n \"$needqemurun\""
544 print "then"
545 print "\techo ---- Starting kernels. `date` | tee -a " rd "log";
546 print "\t$TORTURE_JITTER_START";
547 print "\twhile ls $runfiles > /dev/null 2>&1"
548 print "\tdo"
549 print "\t\t:"
550 print "\tdone"
551 print "\t$TORTURE_JITTER_STOP";
552 print "\techo ---- All kernel runs complete. `date` | tee -a " rd "log";
553 print "else"
554 print "\twait"
555 print "\techo ---- No kernel runs. `date` | tee -a " rd "log";
556 print "fi"
557 for (j = 1; j < jn; j++) {
558 print "echo ----", cfr[j], cpusr[j] ovf ": Build/run results: | tee -a " rd "log";
559 print "cat " rd cfr[j] "/kvm-test-1-run.sh.out | tee -a " rd "log";
560 }
561}
562
563END {
564 njobs = i;
565 nc = ncpus;
566 first = 0;
567 batchnum = 1;
568
569 # Each pass through the following loop considers one test.
570 for (i = 0; i < njobs; i++) {
571 if (ncpus == 0) {
572 # Sequential test specified, each test its own batch.
573 dump(i, i + 1, batchnum);
574 first = i;
575 batchnum++;
576 } else if (nc < cpus[i] && i != 0) {
577 # Out of CPUs, dump out a batch.
578 dump(first, i, batchnum);
579 first = i;
580 nc = ncpus;
581 batchnum++;
582 }
583 # Account for the CPUs needed by the current test.
584 nc -= cpus[i];
585 }
586 # Dump the last batch.
587 if (ncpus != 0)
588 dump(first, i, batchnum);
589}
590___EOF___
591awk < $T/cfgcpu.pack \
592 -v TORTURE_BUILDONLY="$TORTURE_BUILDONLY" \
593 -v CONFIGDIR="$CONFIGFRAG/" \
594 -v RCUTORTURE="$RCUTORTURE" \
595 -v ncpus=$cpus \
596 -v jitter="$jitter" \
597 -v rd=$resdir/$ds/ \
598 -v dur=$dur \
599 -v TORTURE_QEMU_ARG="$TORTURE_QEMU_ARG" \
600 -v TORTURE_BOOTARGS="$TORTURE_BOOTARGS" \
601 -f $T/dumpbatches.awk >> $T/script
602echo kvm-end-run-stats.sh "$resdir/$ds" "$starttime" >> $T/script
603
604# Extract the tests and their batches from the script.
605grep -E 'Start batch|Starting build\.' $T/script | grep -v ">>" |
606 sed -e 's/:.*$//' -e 's/^echo //' -e 's/-ovf//' |
607 awk '
608 /^----Start/ {
609 batchno = $3;
610 next;
611 }
612 {
613 print batchno, $1, $2
614 }' > $T/batches
615
616# As above, but one line per batch.
617grep -v '^#' $T/batches | awk '
618BEGIN {
619 oldbatch = 1;
620}
621
622{
623 if (oldbatch != $1) {
624 print ++n ". " curbatch;
625 curbatch = "";
626 oldbatch = $1;
627 }
628 curbatch = curbatch " " $2;
629}
630
631END {
632 print ++n ". " curbatch;
633}' > $T/scenarios
634
635if test "$dryrun" = script
636then
637 cat $T/script
638 exit 0
639elif test "$dryrun" = sched
640then
641 # Extract the test run schedule from the script.
642 grep -E 'Start batch|Starting build\.' $T/script | grep -v ">>" |
643 sed -e 's/:.*$//' -e 's/^echo //'
644 nbuilds="`grep 'Starting build\.' $T/script |
645 grep -v ">>" | sed -e 's/:.*$//' -e 's/^echo //' |
646 awk '{ print $1 }' | grep -v '\.' | wc -l`"
647 echo Total number of builds: $nbuilds
648 nbatches="`grep 'Start batch' $T/script | grep -v ">>" | wc -l`"
649 echo Total number of batches: $nbatches
650 exit 0
651elif test "$dryrun" = batches
652then
653 cat $T/batches
654 exit 0
655elif test "$dryrun" = scenarios
656then
657 cat $T/scenarios
658 exit 0
659else
660 # Not a dryrun. Record the batches and the number of CPUs, then run the script.
661 bash $T/script
662 ret=$?
663 cp $T/batches $resdir/$ds/batches
664 cp $T/scenarios $resdir/$ds/scenarios
665 echo '#' cpus=$cpus >> $resdir/$ds/batches
666 exit $ret
667fi
668
669# 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
670# Function-graph tracing: ftrace=function_graph ftrace_graph_filter=sched_setaffinity,migration_cpu_stop
671# Also --kconfig "CONFIG_FUNCTION_TRACER=y CONFIG_FUNCTION_GRAPH_TRACER=y"
672# Control buffer size: --bootargs trace_buf_size=3k
673# Get trace-buffer dumps on all oopses: --bootargs ftrace_dump_on_oops
674# Ditto, but dump only the oopsing CPU: --bootargs ftrace_dump_on_oops=orig_cpu
675# Heavy-handed way to also dump on warnings: --bootargs panic_on_warn=1
Linux 6.x block layer and io_uring tree(s)