1#!/bin/bash 2# SPDX-License-Identifier: GPL-2.0+ 3# 4# Run SRCU-lockdep tests and report any that fail to meet expectations. 5# 6# Copyright (C) 2021 Meta Platforms, Inc. 7# 8# Authors: Paul E. McKenney <paulmck@kernel.org> 9 10usage () { 11 echo "Usage: $scriptname optional arguments:" 12 echo " --datestamp string" 13 exit 1 14} 15 16ds=`date +%Y.%m.%d-%H.%M.%S`-srcu_lockdep 17scriptname="$0" 18 19T="`mktemp -d ${TMPDIR-/tmp}/srcu_lockdep.sh.XXXXXX`" 20trap 'rm -rf $T' 0 21 22RCUTORTURE="`pwd`/tools/testing/selftests/rcutorture"; export RCUTORTURE 23PATH=${RCUTORTURE}/bin:$PATH; export PATH 24. functions.sh 25 26while test $# -gt 0 27do 28 case "$1" in 29 --datestamp) 30 checkarg --datestamp "(relative pathname)" "$#" "$2" '^[a-zA-Z0-9._/-]*$' '^--' 31 ds=$2 32 shift 33 ;; 34 *) 35 echo Unknown argument $1 36 usage 37 ;; 38 esac 39 shift 40done 41 42nerrs=0 43 44# Test lockdep's handling of deadlocks. 45for d in 0 1 46do 47 for t in 0 1 2 48 do 49 for c in 1 2 3 50 do 51 err= 52 val=$((d*1000+t*10+c)) 53 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 54 ret=$? 55 mv "$T/kvm.sh.out" "$RCUTORTURE/res/$ds/$val" 56 if ! grep -q '^CONFIG_PROVE_LOCKING=y' .config 57 then 58 echo "rcu_torture_init_srcu_lockdep:Error: CONFIG_PROVE_LOCKING disabled in rcutorture SRCU-P scenario" 59 nerrs=$((nerrs+1)) 60 err=1 61 fi 62 if test "$d" -ne 0 && test "$ret" -eq 0 63 then 64 err=1 65 echo -n Unexpected success for > "$RCUTORTURE/res/$ds/$val/kvm.sh.err" 66 fi 67 if test "$d" -eq 0 && test "$ret" -ne 0 68 then 69 err=1 70 echo -n Unexpected failure for > "$RCUTORTURE/res/$ds/$val/kvm.sh.err" 71 fi 72 if test -n "$err" 73 then 74 grep "rcu_torture_init_srcu_lockdep: test_srcu_lockdep = " "$RCUTORTURE/res/$ds/$val/SRCU-P/console.log" | sed -e 's/^.*rcu_torture_init_srcu_lockdep://' >> "$RCUTORTURE/res/$ds/$val/kvm.sh.err" 75 cat "$RCUTORTURE/res/$ds/$val/kvm.sh.err" 76 nerrs=$((nerrs+1)) 77 fi 78 done 79 done 80done 81 82# Test lockdep-enabled testing of mixed SRCU readers. 83for val in 0x1 0xf 84do 85 err= 86 tools/testing/selftests/rcutorture/bin/kvm.sh --allcpus --duration 5s --configs "SRCU-P" --kconfig "CONFIG_FORCE_NEED_SRCU_NMI_SAFE=y" --bootargs "rcutorture.reader_flavor=$val" --trust-make --datestamp "$ds/$val" > "$T/kvm.sh.out" 2>&1 87 ret=$? 88 mv "$T/kvm.sh.out" "$RCUTORTURE/res/$ds/$val" 89 if ! grep -q '^CONFIG_PROVE_LOCKING=y' .config 90 then 91 echo "rcu_torture_init_srcu_lockdep:Error: CONFIG_PROVE_LOCKING disabled in rcutorture SRCU-P scenario" 92 nerrs=$((nerrs+1)) 93 err=1 94 fi 95 if test "$val" -eq 0xf && test "$ret" -eq 0 96 then 97 err=1 98 echo -n Unexpected success for > "$RCUTORTURE/res/$ds/$val/kvm.sh.err" 99 fi 100 if test "$val" -eq 0x1 && test "$ret" -ne 0 101 then 102 err=1 103 echo -n Unexpected failure for > "$RCUTORTURE/res/$ds/$val/kvm.sh.err" 104 fi 105 if test -n "$err" 106 then 107 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" 108 cat "$RCUTORTURE/res/$ds/$val/kvm.sh.err" 109 nerrs=$((nerrs+1)) 110 fi 111done 112 113# Set up exit code. 114if test "$nerrs" -ne 0 115then 116 exit 1 117fi 118exit 0 119