tjh.dev
Linux kernel mirror (for testing)
git.kernel.org/pub/scm/linux/kernel/git/torvalds/linux.git
kernel
os
linux
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=${TMPDIR-/tmp}/kvm.sh.$$
18trap 'rm -rf $T' 0
19mkdir $T
20
21cd `dirname $scriptname`/../../../../../
22
23dur=$((30*60))
24dryrun=""
25KVM="`pwd`/tools/testing/selftests/rcutorture"; export KVM
26PATH=${KVM}/bin:$PATH; export PATH
27. functions.sh
28
29TORTURE_ALLOTED_CPUS="`identify_qemu_vcpus`"
30TORTURE_DEFCONFIG=defconfig
31TORTURE_BOOT_IMAGE=""
32TORTURE_INITRD="$KVM/initrd"; export TORTURE_INITRD
33TORTURE_KCONFIG_ARG=""
34TORTURE_KCONFIG_GDB_ARG=""
35TORTURE_BOOT_GDB_ARG=""
36TORTURE_QEMU_GDB_ARG=""
37TORTURE_KCONFIG_KASAN_ARG=""
38TORTURE_KCONFIG_KCSAN_ARG=""
39TORTURE_KMAKE_ARG=""
40TORTURE_QEMU_MEM=512
41TORTURE_SHUTDOWN_GRACE=180
42TORTURE_SUITE=rcu
43TORTURE_TRUST_MAKE=""
44resdir=""
45configs=""
46cpus=0
47ds=`date +%Y.%m.%d-%H.%M.%S`
48jitter="-1"
49
50startdate="`date`"
51starttime="`get_starttime`"
52
53usage () {
54 echo "Usage: $scriptname optional arguments:"
55 echo " --allcpus"
56 echo " --bootargs kernel-boot-arguments"
57 echo " --bootimage relative-path-to-kernel-boot-image"
58 echo " --buildonly"
59 echo " --configs \"config-file list w/ repeat factor (3*TINY01)\""
60 echo " --cpus N"
61 echo " --datestamp string"
62 echo " --defconfig string"
63 echo " --dryrun batches|sched|script"
64 echo " --duration minutes | <seconds>s | <hours>h | <days>d"
65 echo " --gdb"
66 echo " --help"
67 echo " --interactive"
68 echo " --jitter N [ maxsleep (us) [ maxspin (us) ] ]"
69 echo " --kconfig Kconfig-options"
70 echo " --kmake-arg kernel-make-arguments"
71 echo " --mac nn:nn:nn:nn:nn:nn"
72 echo " --memory megabytes|nnnG"
73 echo " --no-initrd"
74 echo " --qemu-args qemu-arguments"
75 echo " --qemu-cmd qemu-system-..."
76 echo " --results absolute-pathname"
77 echo " --torture lock|rcu|rcuscale|refscale|scf"
78 echo " --trust-make"
79 exit 1
80}
81
82while test $# -gt 0
83do
84 case "$1" in
85 --allcpus)
86 cpus=$TORTURE_ALLOTED_CPUS
87 max_cpus=$TORTURE_ALLOTED_CPUS
88 ;;
89 --bootargs|--bootarg)
90 checkarg --bootargs "(list of kernel boot arguments)" "$#" "$2" '.*' '^--'
91 TORTURE_BOOTARGS="$TORTURE_BOOTARGS $2"
92 shift
93 ;;
94 --bootimage)
95 checkarg --bootimage "(relative path to kernel boot image)" "$#" "$2" '[a-zA-Z0-9][a-zA-Z0-9_]*' '^--'
96 TORTURE_BOOT_IMAGE="$2"
97 shift
98 ;;
99 --buildonly|--build-only)
100 TORTURE_BUILDONLY=1
101 ;;
102 --configs|--config)
103 checkarg --configs "(list of config files)" "$#" "$2" '^[^/]\+$' '^--'
104 configs="$configs $2"
105 shift
106 ;;
107 --cpus)
108 checkarg --cpus "(number)" "$#" "$2" '^[0-9]*$' '^--'
109 cpus=$2
110 TORTURE_ALLOTED_CPUS="$2"
111 max_cpus="`identify_qemu_vcpus`"
112 if test "$TORTURE_ALLOTED_CPUS" -gt "$max_cpus"
113 then
114 TORTURE_ALLOTED_CPUS=$max_cpus
115 fi
116 shift
117 ;;
118 --datestamp)
119 checkarg --datestamp "(relative pathname)" "$#" "$2" '^[a-zA-Z0-9._-/]*$' '^--'
120 ds=$2
121 shift
122 ;;
123 --defconfig)
124 checkarg --defconfig "defconfigtype" "$#" "$2" '^[^/][^/]*$' '^--'
125 TORTURE_DEFCONFIG=$2
126 shift
127 ;;
128 --dryrun)
129 checkarg --dryrun "batches|sched|script" $# "$2" 'batches\|sched\|script' '^--'
130 dryrun=$2
131 shift
132 ;;
133 --duration)
134 checkarg --duration "(minutes)" $# "$2" '^[0-9][0-9]*\(s\|m\|h\|d\|\)$' '^error'
135 mult=60
136 if echo "$2" | grep -q 's$'
137 then
138 mult=1
139 elif echo "$2" | grep -q 'h$'
140 then
141 mult=3600
142 elif echo "$2" | grep -q 'd$'
143 then
144 mult=86400
145 fi
146 ts=`echo $2 | sed -e 's/[smhd]$//'`
147 dur=$(($ts*mult))
148 shift
149 ;;
150 --gdb)
151 TORTURE_KCONFIG_GDB_ARG="CONFIG_DEBUG_INFO=y"; export TORTURE_KCONFIG_GDB_ARG
152 TORTURE_BOOT_GDB_ARG="nokaslr"; export TORTURE_BOOT_GDB_ARG
153 TORTURE_QEMU_GDB_ARG="-s -S"; export TORTURE_QEMU_GDB_ARG
154 ;;
155 --help|-h)
156 usage
157 ;;
158 --interactive)
159 TORTURE_QEMU_INTERACTIVE=1; export TORTURE_QEMU_INTERACTIVE
160 ;;
161 --jitter)
162 checkarg --jitter "(# threads [ sleep [ spin ] ])" $# "$2" '^-\{,1\}[0-9]\+\( \+[0-9]\+\)\{,2\} *$' '^error$'
163 jitter="$2"
164 shift
165 ;;
166 --kconfig|--kconfigs)
167 checkarg --kconfig "(Kconfig options)" $# "$2" '^CONFIG_[A-Z0-9_]\+=\([ynm]\|[0-9]\+\)\( CONFIG_[A-Z0-9_]\+=\([ynm]\|[0-9]\+\)\)*$' '^error$'
168 TORTURE_KCONFIG_ARG="`echo "$TORTURE_KCONFIG_ARG $2" | sed -e 's/^ *//' -e 's/ *$//'`"
169 shift
170 ;;
171 --kasan)
172 TORTURE_KCONFIG_KASAN_ARG="CONFIG_DEBUG_INFO=y CONFIG_KASAN=y"; export TORTURE_KCONFIG_KASAN_ARG
173 ;;
174 --kcsan)
175 TORTURE_KCONFIG_KCSAN_ARG="CONFIG_DEBUG_INFO=y CONFIG_KCSAN=y CONFIG_KCSAN_ASSUME_PLAIN_WRITES_ATOMIC=n CONFIG_KCSAN_REPORT_VALUE_CHANGE_ONLY=n CONFIG_KCSAN_REPORT_ONCE_IN_MS=100000 CONFIG_KCSAN_INTERRUPT_WATCHER=y CONFIG_KCSAN_VERBOSE=y CONFIG_DEBUG_LOCK_ALLOC=y CONFIG_PROVE_LOCKING=y"; export TORTURE_KCONFIG_KCSAN_ARG
176 ;;
177 --kmake-arg|--kmake-args)
178 checkarg --kmake-arg "(kernel make arguments)" $# "$2" '.*' '^error$'
179 TORTURE_KMAKE_ARG="`echo "$TORTURE_KMAKE_ARG $2" | sed -e 's/^ *//' -e 's/ *$//'`"
180 shift
181 ;;
182 --mac)
183 checkarg --mac "(MAC address)" $# "$2" '^\([0-9a-fA-F]\{2\}:\)\{5\}[0-9a-fA-F]\{2\}$' error
184 TORTURE_QEMU_MAC=$2
185 shift
186 ;;
187 --memory)
188 checkarg --memory "(memory size)" $# "$2" '^[0-9]\+[MG]\?$' error
189 TORTURE_QEMU_MEM=$2
190 shift
191 ;;
192 --no-initrd)
193 TORTURE_INITRD=""; export TORTURE_INITRD
194 ;;
195 --qemu-args|--qemu-arg)
196 checkarg --qemu-args "(qemu arguments)" $# "$2" '^-' '^error'
197 TORTURE_QEMU_ARG="`echo "$TORTURE_QEMU_ARG $2" | sed -e 's/^ *//' -e 's/ *$//'`"
198 shift
199 ;;
200 --qemu-cmd)
201 checkarg --qemu-cmd "(qemu-system-...)" $# "$2" 'qemu-system-' '^--'
202 TORTURE_QEMU_CMD="$2"
203 shift
204 ;;
205 --results)
206 checkarg --results "(absolute pathname)" "$#" "$2" '^/' '^error'
207 resdir=$2
208 shift
209 ;;
210 --shutdown-grace)
211 checkarg --shutdown-grace "(seconds)" "$#" "$2" '^[0-9]*$' '^error'
212 TORTURE_SHUTDOWN_GRACE=$2
213 shift
214 ;;
215 --torture)
216 checkarg --torture "(suite name)" "$#" "$2" '^\(lock\|rcu\|rcuscale\|refscale\|scf\)$' '^--'
217 TORTURE_SUITE=$2
218 shift
219 if test "$TORTURE_SUITE" = rcuscale || test "$TORTURE_SUITE" = refscale
220 then
221 # If you really want jitter for refscale or
222 # rcuscale, specify it after specifying the rcuscale
223 # or the refscale. (But why jitter in these cases?)
224 jitter=0
225 fi
226 ;;
227 --trust-make)
228 TORTURE_TRUST_MAKE="y"
229 ;;
230 *)
231 echo Unknown argument $1
232 usage
233 ;;
234 esac
235 shift
236done
237
238if test -n "$dryrun" || test -z "$TORTURE_INITRD" || tools/testing/selftests/rcutorture/bin/mkinitrd.sh
239then
240 :
241else
242 echo No initrd and unable to create one, aborting test >&2
243 exit 1
244fi
245
246CONFIGFRAG=${KVM}/configs/${TORTURE_SUITE}; export CONFIGFRAG
247
248defaultconfigs="`tr '\012' ' ' < $CONFIGFRAG/CFLIST`"
249if test -z "$configs"
250then
251 configs=$defaultconfigs
252fi
253
254if test -z "$resdir"
255then
256 resdir=$KVM/res
257fi
258
259# Create a file of test-name/#cpus pairs, sorted by decreasing #cpus.
260configs_derep=
261for CF in $configs
262do
263 case $CF in
264 [0-9]\**|[0-9][0-9]\**|[0-9][0-9][0-9]\**)
265 config_reps=`echo $CF | sed -e 's/\*.*$//'`
266 CF1=`echo $CF | sed -e 's/^[^*]*\*//'`
267 ;;
268 *)
269 config_reps=1
270 CF1=$CF
271 ;;
272 esac
273 for ((cur_rep=0;cur_rep<$config_reps;cur_rep++))
274 do
275 configs_derep="$configs_derep $CF1"
276 done
277done
278touch $T/cfgcpu
279configs_derep="`echo $configs_derep | sed -e "s/\<CFLIST\>/$defaultconfigs/g"`"
280if test -n "$TORTURE_KCONFIG_GDB_ARG"
281then
282 if test "`echo $configs_derep | wc -w`" -gt 1
283 then
284 echo "The --config list is: $configs_derep."
285 echo "Only one --config permitted with --gdb, terminating."
286 exit 1
287 fi
288fi
289echo 'BEGIN {' > $T/cfgcpu.awk
290for CF1 in `echo $configs_derep | tr -s ' ' '\012' | sort -u`
291do
292 if test -f "$CONFIGFRAG/$CF1"
293 then
294 if echo "$TORTURE_KCONFIG_ARG" | grep -q '\<CONFIG_NR_CPUS='
295 then
296 echo "$TORTURE_KCONFIG_ARG" | tr -s ' ' | tr ' ' '\012' > $T/KCONFIG_ARG
297 cpu_count=`configNR_CPUS.sh $T/KCONFIG_ARG`
298 else
299 cpu_count=`configNR_CPUS.sh $CONFIGFRAG/$CF1`
300 fi
301 cpu_count=`configfrag_boot_cpus "$TORTURE_BOOTARGS" "$CONFIGFRAG/$CF1" "$cpu_count"`
302 cpu_count=`configfrag_boot_maxcpus "$TORTURE_BOOTARGS" "$CONFIGFRAG/$CF1" "$cpu_count"`
303 echo 'scenariocpu["'"$CF1"'"] = '"$cpu_count"';' >> $T/cfgcpu.awk
304 else
305 echo "The --configs file $CF1 does not exist, terminating."
306 exit 1
307 fi
308done
309cat << '___EOF___' >> $T/cfgcpu.awk
310}
311{
312 for (i = 1; i <= NF; i++)
313 print $i, scenariocpu[$i];
314}
315___EOF___
316echo $configs_derep | awk -f $T/cfgcpu.awk > $T/cfgcpu
317sort -k2nr $T/cfgcpu -T="$T" > $T/cfgcpu.sort
318
319# Use a greedy bin-packing algorithm, sorting the list accordingly.
320awk < $T/cfgcpu.sort > $T/cfgcpu.pack -v ncpus=$cpus '
321BEGIN {
322 njobs = 0;
323}
324
325{
326 # Read file of tests and corresponding required numbers of CPUs.
327 cf[njobs] = $1;
328 cpus[njobs] = $2;
329 njobs++;
330}
331
332END {
333 batch = 0;
334 nc = -1;
335
336 # Each pass through the following loop creates on test batch that
337 # can be executed concurrently given ncpus. Note that a given test
338 # that requires more than the available CPUs will run in its own
339 # batch. Such tests just have to make do with what is available.
340 while (nc != ncpus) {
341 batch++;
342 nc = ncpus;
343
344 # Each pass through the following loop considers one
345 # test for inclusion in the current batch.
346 for (i = 0; i < njobs; i++) {
347 if (done[i])
348 continue; # Already part of a batch.
349 if (nc >= cpus[i] || nc == ncpus) {
350
351 # This test fits into the current batch.
352 done[i] = batch;
353 nc -= cpus[i];
354 if (nc <= 0)
355 break; # Too-big test in its own batch.
356 }
357 }
358 }
359
360 # Dump out the tests in batch order.
361 for (b = 1; b <= batch; b++)
362 for (i = 0; i < njobs; i++)
363 if (done[i] == b)
364 print cf[i], cpus[i];
365}'
366
367# Generate a script to execute the tests in appropriate batches.
368cat << ___EOF___ > $T/script
369CONFIGFRAG="$CONFIGFRAG"; export CONFIGFRAG
370KVM="$KVM"; export KVM
371PATH="$PATH"; export PATH
372TORTURE_ALLOTED_CPUS="$TORTURE_ALLOTED_CPUS"; export TORTURE_ALLOTED_CPUS
373TORTURE_BOOT_IMAGE="$TORTURE_BOOT_IMAGE"; export TORTURE_BOOT_IMAGE
374TORTURE_BUILDONLY="$TORTURE_BUILDONLY"; export TORTURE_BUILDONLY
375TORTURE_DEFCONFIG="$TORTURE_DEFCONFIG"; export TORTURE_DEFCONFIG
376TORTURE_INITRD="$TORTURE_INITRD"; export TORTURE_INITRD
377TORTURE_KCONFIG_ARG="$TORTURE_KCONFIG_ARG"; export TORTURE_KCONFIG_ARG
378TORTURE_KCONFIG_GDB_ARG="$TORTURE_KCONFIG_GDB_ARG"; export TORTURE_KCONFIG_GDB_ARG
379TORTURE_BOOT_GDB_ARG="$TORTURE_BOOT_GDB_ARG"; export TORTURE_BOOT_GDB_ARG
380TORTURE_QEMU_GDB_ARG="$TORTURE_QEMU_GDB_ARG"; export TORTURE_QEMU_GDB_ARG
381TORTURE_KCONFIG_KASAN_ARG="$TORTURE_KCONFIG_KASAN_ARG"; export TORTURE_KCONFIG_KASAN_ARG
382TORTURE_KCONFIG_KCSAN_ARG="$TORTURE_KCONFIG_KCSAN_ARG"; export TORTURE_KCONFIG_KCSAN_ARG
383TORTURE_KMAKE_ARG="$TORTURE_KMAKE_ARG"; export TORTURE_KMAKE_ARG
384TORTURE_QEMU_CMD="$TORTURE_QEMU_CMD"; export TORTURE_QEMU_CMD
385TORTURE_QEMU_INTERACTIVE="$TORTURE_QEMU_INTERACTIVE"; export TORTURE_QEMU_INTERACTIVE
386TORTURE_QEMU_MAC="$TORTURE_QEMU_MAC"; export TORTURE_QEMU_MAC
387TORTURE_QEMU_MEM="$TORTURE_QEMU_MEM"; export TORTURE_QEMU_MEM
388TORTURE_SHUTDOWN_GRACE="$TORTURE_SHUTDOWN_GRACE"; export TORTURE_SHUTDOWN_GRACE
389TORTURE_SUITE="$TORTURE_SUITE"; export TORTURE_SUITE
390TORTURE_TRUST_MAKE="$TORTURE_TRUST_MAKE"; export TORTURE_TRUST_MAKE
391if ! test -e $resdir
392then
393 mkdir -p "$resdir" || :
394fi
395mkdir -p $resdir/$ds
396TORTURE_RESDIR="$resdir/$ds"; export TORTURE_RESDIR
397TORTURE_STOPFILE="$resdir/$ds/STOP.1"; export TORTURE_STOPFILE
398echo Results directory: $resdir/$ds
399echo $scriptname $args
400touch $resdir/$ds/log
401echo $scriptname $args >> $resdir/$ds/log
402echo ${TORTURE_SUITE} > $resdir/$ds/TORTURE_SUITE
403pwd > $resdir/$ds/testid.txt
404if test -d .git
405then
406 git status >> $resdir/$ds/testid.txt
407 git rev-parse HEAD >> $resdir/$ds/testid.txt
408 git diff HEAD >> $resdir/$ds/testid.txt
409fi
410___EOF___
411awk < $T/cfgcpu.pack \
412 -v TORTURE_BUILDONLY="$TORTURE_BUILDONLY" \
413 -v CONFIGDIR="$CONFIGFRAG/" \
414 -v KVM="$KVM" \
415 -v ncpus=$cpus \
416 -v jitter="$jitter" \
417 -v rd=$resdir/$ds/ \
418 -v dur=$dur \
419 -v TORTURE_QEMU_ARG="$TORTURE_QEMU_ARG" \
420 -v TORTURE_BOOTARGS="$TORTURE_BOOTARGS" \
421'BEGIN {
422 i = 0;
423}
424
425{
426 cf[i] = $1;
427 cpus[i] = $2;
428 i++;
429}
430
431# Dump out the scripting required to run one test batch.
432function dump(first, pastlast, batchnum)
433{
434 print "echo ----Start batch " batchnum ": `date` | tee -a " rd "log";
435 print "needqemurun="
436 jn=1
437 for (j = first; j < pastlast; j++) {
438 builddir=KVM "/b" j - first + 1
439 cpusr[jn] = cpus[j];
440 if (cfrep[cf[j]] == "") {
441 cfr[jn] = cf[j];
442 cfrep[cf[j]] = 1;
443 } else {
444 cfrep[cf[j]]++;
445 cfr[jn] = cf[j] "." cfrep[cf[j]];
446 }
447 if (cpusr[jn] > ncpus && ncpus != 0)
448 ovf = "-ovf";
449 else
450 ovf = "";
451 print "echo ", cfr[jn], cpusr[jn] ovf ": Starting build. `date` | tee -a " rd "log";
452 print "rm -f " builddir ".*";
453 print "touch " builddir ".wait";
454 print "mkdir " rd cfr[jn] " || :";
455 print "kvm-test-1-run.sh " CONFIGDIR cf[j], builddir, rd cfr[jn], dur " \"" TORTURE_QEMU_ARG "\" \"" TORTURE_BOOTARGS "\" > " rd cfr[jn] "/kvm-test-1-run.sh.out 2>&1 &"
456 print "echo ", cfr[jn], cpusr[jn] ovf ": Waiting for build to complete. `date` | tee -a " rd "log";
457 print "while test -f " builddir ".wait"
458 print "do"
459 print "\tsleep 1"
460 print "done"
461 print "echo ", cfr[jn], cpusr[jn] ovf ": Build complete. `date` | tee -a " rd "log";
462 jn++;
463 }
464 for (j = 1; j < jn; j++) {
465 builddir=KVM "/b" j
466 print "rm -f " builddir ".ready"
467 print "if test -f \"" rd cfr[j] "/builtkernel\""
468 print "then"
469 print "\techo ----", cfr[j], cpusr[j] ovf ": Kernel present. `date` | tee -a " rd "log";
470 print "\tneedqemurun=1"
471 print "fi"
472 }
473 njitter = 0;
474 split(jitter, ja);
475 if (ja[1] == -1 && ncpus == 0)
476 njitter = 1;
477 else if (ja[1] == -1)
478 njitter = ncpus;
479 else
480 njitter = ja[1];
481 if (TORTURE_BUILDONLY && njitter != 0) {
482 njitter = 0;
483 print "echo Build-only run, so suppressing jitter | tee -a " rd "log"
484 }
485 if (TORTURE_BUILDONLY) {
486 print "needqemurun="
487 }
488 print "if test -n \"$needqemurun\""
489 print "then"
490 print "\techo ---- Starting kernels. `date` | tee -a " rd "log";
491 print "\techo > " rd "jitter_pids"
492 for (j = 0; j < njitter; j++) {
493 print "\tjitter.sh " j " " dur " " ja[2] " " ja[3] "&"
494 print "\techo $! >> " rd "jitter_pids"
495 }
496 print "\twait"
497 print "\techo ---- All kernel runs complete. `date` | tee -a " rd "log";
498 print "else"
499 print "\twait"
500 print "\techo ---- No kernel runs. `date` | tee -a " rd "log";
501 print "fi"
502 for (j = 1; j < jn; j++) {
503 builddir=KVM "/b" j
504 print "echo ----", cfr[j], cpusr[j] ovf ": Build/run results: | tee -a " rd "log";
505 print "cat " rd cfr[j] "/kvm-test-1-run.sh.out | tee -a " rd "log";
506 }
507}
508
509END {
510 njobs = i;
511 nc = ncpus;
512 first = 0;
513 batchnum = 1;
514
515 # Each pass through the following loop considers one test.
516 for (i = 0; i < njobs; i++) {
517 if (ncpus == 0) {
518 # Sequential test specified, each test its own batch.
519 dump(i, i + 1, batchnum);
520 first = i;
521 batchnum++;
522 } else if (nc < cpus[i] && i != 0) {
523 # Out of CPUs, dump out a batch.
524 dump(first, i, batchnum);
525 first = i;
526 nc = ncpus;
527 batchnum++;
528 }
529 # Account for the CPUs needed by the current test.
530 nc -= cpus[i];
531 }
532 # Dump the last batch.
533 if (ncpus != 0)
534 dump(first, i, batchnum);
535}' >> $T/script
536
537cat << '___EOF___' >> $T/script
538echo | tee -a $TORTURE_RESDIR/log
539echo | tee -a $TORTURE_RESDIR/log
540echo " --- `date` Test summary:" | tee -a $TORTURE_RESDIR/log
541___EOF___
542cat << ___EOF___ >> $T/script
543echo Results directory: $resdir/$ds | tee -a $resdir/$ds/log
544kcsan-collapse.sh $resdir/$ds | tee -a $resdir/$ds/log
545kvm-recheck.sh $resdir/$ds > $T/kvm-recheck.sh.out 2>&1
546___EOF___
547echo 'ret=$?' >> $T/script
548echo "cat $T/kvm-recheck.sh.out | tee -a $resdir/$ds/log" >> $T/script
549echo 'exit $ret' >> $T/script
550
551if test "$dryrun" = script
552then
553 cat $T/script
554 exit 0
555elif test "$dryrun" = sched
556then
557 # Extract the test run schedule from the script.
558 egrep 'Start batch|Starting build\.' $T/script | grep -v ">>" |
559 sed -e 's/:.*$//' -e 's/^echo //'
560 nbuilds="`grep 'Starting build\.' $T/script |
561 grep -v ">>" | sed -e 's/:.*$//' -e 's/^echo //' |
562 awk '{ print $1 }' | grep -v '\.' | wc -l`"
563 echo Total number of builds: $nbuilds
564 nbatches="`grep 'Start batch' $T/script | grep -v ">>" | wc -l`"
565 echo Total number of batches: $nbatches
566 exit 0
567elif test "$dryrun" = batches
568then
569 # Extract the tests and their batches from the script.
570 egrep 'Start batch|Starting build\.' $T/script | grep -v ">>" |
571 sed -e 's/:.*$//' -e 's/^echo //' -e 's/-ovf//' |
572 awk '
573 /^----Start/ {
574 batchno = $3;
575 next;
576 }
577 {
578 print batchno, $1, $2
579 }'
580else
581 # Not a dryrun, so run the script.
582 bash $T/script
583 ret=$?
584 echo " --- Done at `date` (`get_starttime_duration $starttime`) exitcode $ret" | tee -a $resdir/$ds/log
585 exit $ret
586fi
587
588# 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
589# Function-graph tracing: ftrace=function_graph ftrace_graph_filter=sched_setaffinity,migration_cpu_stop
590# Also --kconfig "CONFIG_FUNCTION_TRACER=y CONFIG_FUNCTION_GRAPH_TRACER=y"
591# Control buffer size: --bootargs trace_buf_size=3k
592# Get trace-buffer dumps on all oopses: --bootargs ftrace_dump_on_oops
593# Ditto, but dump only the oopsing CPU: --bootargs ftrace_dump_on_oops=orig_cpu
594# Heavy-handed way to also dump on warnings: --bootargs panic_on_warn