Files
linux/tools/testing/selftests/rcutorture/bin/srcu_lockdep.sh
Paul E. McKenney 6be43acb2a torture: Make SRCU lockdep testing use srcu_read_lock_nmisafe()
Recent experience shows that the srcu_read_lock_nmisafe() and
srcu_read_unlock_nmisafe() functions are not sufficiently tested.
This commit therefore causes the torture.sh script's SRCU lockdep testing
to use these two functions.  This will cause these two functions to
be regularly tested by several developers (myself included) who use
torture.sh as an RCU acceptance test.

Signed-off-by: Paul E. McKenney <paulmck@kernel.org>
Signed-off-by: Boqun Feng <boqun.feng@gmail.com>
2025-02-05 07:14:40 -08:00

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#!/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 $1
usage
;;
esac
shift
done
err=
nerrs=0
for d in 0 1
do
for t in 0 1 2
do
for c in 1 2 3
do
err=
val=$((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/$val"
if test "$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
if test "$nerrs" -ne 0
then
exit 1
fi
exit 0