Quelle  srcu_lockdep.sh   Sprache: Shell

#!/bin/bash
# SPDX-License-Identifier: GPL-2.0+
#
# Run SRCU-lockdep tests and report any that fail to meet expectations.
#
# Copyright (C) 2021 Meta Platforms, Inc.
#
# Authors: Paul E. McKenney <paulmck@kernel.org>

usage () {
 echo "Usage: $scriptname optional arguments:"
 echo " --datestamp string"
 exit 1
}

ds=`date +%Y.%m.%d-%H.%M.%S`-srcu_lockdep
scriptname="$0"

T="`mktemp -d ${TMPDIR-/tmp}/srcu_lockdep.sh.XXXXXX`"
trap 'rm -rf $T' 0

RCUTORTURE="`pwd`/tools/testing/selftests/rcutorture"; export RCUTORTURE
PATH=${RCUTORTURE}/bin:$PATH; export PATH
. functions.sh

while test $# -gt 0
do
 case "$1" in
 --datestamp)
  checkarg --datestamp "(relative pathname)" "$#" "$2" '^[a-zA-Z0-9._/-]*$' '^--'
  ds=$2
  shift
  ;;
 *)
  echo Unknown argument $1
  usage
  ;;
 esac
 shift
done

nerrs=0

# Test lockdep's handling of deadlocks.
for d in 0 1
do
 for t in 0 1 2
 do
  for c in 1 2 3
  do
   err=
   val=$((d*1000+t*10+c))
   tools/testing/selftests/rcutorture/bin/kvm.sh --allcpus --duration 5s --configs "SRCU-P" --kconfig "CONFIG_FORCE_NEED_SRCU_NMI_SAFE=y" --bootargs "rcutorture.test_srcu_lockdep=$val rcutorture.reader_flavor=0x2" --trust-make --datestamp "$ds/$val" > "$T/kvm.sh.out" 2>&1
   ret=$?
   mv "$T/kvm.sh.out" "$RCUTORTURE/res/$ds/$val"
   if ! grep -q '^CONFIG_PROVE_LOCKING=y' .config
   then
    echo "rcu_torture_init_srcu_lockdep:Error: CONFIG_PROVE_LOCKING disabled in rcutorture SRCU-P scenario"
    nerrs=$((nerrs+1))
    err=1
   fi
   if test "$d" -ne 0 && test "$ret" -eq 0
   then
    err=1
    echo -n Unexpected success for > "$RCUTORTURE/res/$ds/$val/kvm.sh.err"
   fi
   if test "$d" -eq 0 && test "$ret" -ne 0
   then
    err=1
    echo -n Unexpected failure for > "$RCUTORTURE/res/$ds/$val/kvm.sh.err"
   fi
   if test -n "$err"
   then
    grep "rcu_torture_init_srcu_lockdep: test_srcu_lockdep = " "$RCUTORTURE/res/$ds/$val/SRCU-P/console.log" | sed -e 's/^.*rcu_torture_init_srcu_lockdep://' >> "$RCUTORTURE/res/$ds/$val/kvm.sh.err"
    cat "$RCUTORTURE/res/$ds/$val/kvm.sh.err"
    nerrs=$((nerrs+1))
   fi
  done
 done
done

# Test lockdep-enabled testing of mixed SRCU readers.
for val in 0x1 0xf
do
 err=
 tools/testing/selftests/rcutorture/bin/kvm.sh --allcpus --duration 5s --configs "SRCU-P" --kconfig "CONFIG_FORCE_NEED_SRCU_NMI_SAFE=y" --bootargs "rcutorture.reader_flavor=$val" --trust-make --datestamp "$ds/$val" > "$T/kvm.sh.out" 2>&1
 ret=$?
 mv "$T/kvm.sh.out" "$RCUTORTURE/res/$ds/$val"
 if ! grep -q '^CONFIG_PROVE_LOCKING=y' .config
 then
  echo "rcu_torture_init_srcu_lockdep:Error: CONFIG_PROVE_LOCKING disabled in rcutorture SRCU-P scenario"
  nerrs=$((nerrs+1))
  err=1
 fi
 if test "$val" -eq 0xf && test "$ret" -eq 0
 then
  err=1
  echo -n Unexpected success for > "$RCUTORTURE/res/$ds/$val/kvm.sh.err"
 fi
 if test "$val" -eq 0x1 && test "$ret" -ne 0
 then
  err=1
  echo -n Unexpected failure for > "$RCUTORTURE/res/$ds/$val/kvm.sh.err"
 fi
 if test -n "$err"
 then
  grep "rcu_torture_init_srcu_lockdep: test_srcu_lockdep = " "$RCUTORTURE/res/$ds/$val/SRCU-P/console.log" | sed -e 's/^.*rcu_torture_init_srcu_lockdep://' >> "$RCUTORTURE/res/$ds/$val/kvm.sh.err"
  cat "$RCUTORTURE/res/$ds/$val/kvm.sh.err"
  nerrs=$((nerrs+1))
 fi
done

# Set up exit code.
if test "$nerrs" -ne 0
then
 exit 1
fi
exit 0