tools/testing/selftests/vm/run_vmtests

   1 #!/bin/bash
   2 # SPDX-License-Identifier: GPL-2.0
   3 #please run as root
   4
   5 # Kselftest framework requirement - SKIP code is 4.
   6 ksft_skip=4
   7
   8 mnt=./huge
   9 exitcode=0
  10
  11 #get huge pagesize and freepages from /proc/meminfo
  12 while read name size unit; do
  13         if [ "$name" = "HugePages_Free:" ]; then
  14                 freepgs=$size
  15         fi
  16         if [ "$name" = "Hugepagesize:" ]; then
  17                 hpgsize_KB=$size
  18         fi
  19 done < /proc/meminfo
  20
  21 # Simple hugetlbfs tests have a hardcoded minimum requirement of
  22 # huge pages totaling 256MB (262144KB) in size.  The userfaultfd
  23 # hugetlb test requires a minimum of 2 * nr_cpus huge pages.  Take
  24 # both of these requirements into account and attempt to increase
  25 # number of huge pages available.
  26 nr_cpus=$(nproc)
  27 hpgsize_MB=$((hpgsize_KB / 1024))
  28 half_ufd_size_MB=$((((nr_cpus * hpgsize_MB + 127) / 128) * 128))
  29 needmem_KB=$((half_ufd_size_MB * 2 * 1024))
  30
  31 #set proper nr_hugepages
  32 if [ -n "$freepgs" ] && [ -n "$hpgsize_KB" ]; then
  33         nr_hugepgs=`cat /proc/sys/vm/nr_hugepages`
  34         needpgs=$((needmem_KB / hpgsize_KB))
  35         tries=2
  36         while [ $tries -gt 0 ] && [ $freepgs -lt $needpgs ]; do
  37                 lackpgs=$(( $needpgs - $freepgs ))
  38                 echo 3 > /proc/sys/vm/drop_caches
  39                 echo $(( $lackpgs + $nr_hugepgs )) > /proc/sys/vm/nr_hugepages
  40                 if [ $? -ne 0 ]; then
  41                         echo "Please run this test as root"
  42                         exit $ksft_skip
  43                 fi
  44                 while read name size unit; do
  45                         if [ "$name" = "HugePages_Free:" ]; then
  46                                 freepgs=$size
  47                         fi
  48                 done < /proc/meminfo
  49                 tries=$((tries - 1))
  50         done
  51         if [ $freepgs -lt $needpgs ]; then
  52                 printf "Not enough huge pages available (%d < %d)\n" \
  53                        $freepgs $needpgs
  54                 exit 1
  55         fi
  56 else
  57         echo "no hugetlbfs support in kernel?"
  58         exit 1
  59 fi
  60
  61 mkdir $mnt
  62 mount -t hugetlbfs none $mnt
  63
  64 echo "---------------------"
  65 echo "running hugepage-mmap"
  66 echo "---------------------"
  67 ./hugepage-mmap
  68 if [ $? -ne 0 ]; then
  69         echo "[FAIL]"
  70         exitcode=1
  71 else
  72         echo "[PASS]"
  73 fi
  74
  75 shmmax=`cat /proc/sys/kernel/shmmax`
  76 shmall=`cat /proc/sys/kernel/shmall`
  77 echo 268435456 > /proc/sys/kernel/shmmax
  78 echo 4194304 > /proc/sys/kernel/shmall
  79 echo "--------------------"
  80 echo "running hugepage-shm"
  81 echo "--------------------"
  82 ./hugepage-shm
  83 if [ $? -ne 0 ]; then
  84         echo "[FAIL]"
  85         exitcode=1
  86 else
  87         echo "[PASS]"
  88 fi
  89 echo $shmmax > /proc/sys/kernel/shmmax
  90 echo $shmall > /proc/sys/kernel/shmall
  91
  92 echo "-------------------"
  93 echo "running map_hugetlb"
  94 echo "-------------------"
  95 ./map_hugetlb
  96 if [ $? -ne 0 ]; then
  97         echo "[FAIL]"
  98         exitcode=1
  99 else
 100         echo "[PASS]"
 101 fi
 102
 103 echo "NOTE: The above hugetlb tests provide minimal coverage.  Use"
 104 echo "      https://github.com/libhugetlbfs/libhugetlbfs.git for"
 105 echo "      hugetlb regression testing."
 106
 107 echo "-------------------"
 108 echo "running userfaultfd"
 109 echo "-------------------"
 110 ./userfaultfd anon 128 32
 111 if [ $? -ne 0 ]; then
 112         echo "[FAIL]"
 113         exitcode=1
 114 else
 115         echo "[PASS]"
 116 fi
 117
 118 echo "---------------------------"
 119 echo "running userfaultfd_hugetlb"
 120 echo "---------------------------"
 121 # Test requires source and destination huge pages.  Size of source
 122 # (half_ufd_size_MB) is passed as argument to test.
 123 ./userfaultfd hugetlb $half_ufd_size_MB 32 $mnt/ufd_test_file
 124 if [ $? -ne 0 ]; then
 125         echo "[FAIL]"
 126         exitcode=1
 127 else
 128         echo "[PASS]"
 129 fi
 130 rm -f $mnt/ufd_test_file
 131
 132 echo "-------------------------"
 133 echo "running userfaultfd_shmem"
 134 echo "-------------------------"
 135 ./userfaultfd shmem 128 32
 136 if [ $? -ne 0 ]; then
 137         echo "[FAIL]"
 138         exitcode=1
 139 else
 140         echo "[PASS]"
 141 fi
 142
 143 #cleanup
 144 umount $mnt
 145 rm -rf $mnt
 146 echo $nr_hugepgs > /proc/sys/vm/nr_hugepages
 147
 148 echo "-----------------------"
 149 echo "running compaction_test"
 150 echo "-----------------------"
 151 ./compaction_test
 152 if [ $? -ne 0 ]; then
 153         echo "[FAIL]"
 154         exitcode=1
 155 else
 156         echo "[PASS]"
 157 fi
 158
 159 echo "----------------------"
 160 echo "running on-fault-limit"
 161 echo "----------------------"
 162 sudo -u nobody ./on-fault-limit
 163 if [ $? -ne 0 ]; then
 164         echo "[FAIL]"
 165         exitcode=1
 166 else
 167         echo "[PASS]"
 168 fi
 169
 170 echo "--------------------"
 171 echo "running mlock2-tests"
 172 echo "--------------------"
 173 ./mlock2-tests
 174 if [ $? -ne 0 ]; then
 175         echo "[FAIL]"
 176         exitcode=1
 177 else
 178         echo "[PASS]"
 179 fi
 180
 181 echo "-----------------------------"
 182 echo "running virtual_address_range"
 183 echo "-----------------------------"
 184 ./virtual_address_range
 185 if [ $? -ne 0 ]; then
 186         echo "[FAIL]"
 187         exitcode=1
 188 else
 189         echo "[PASS]"
 190 fi
 191
 192 echo "-----------------------------"
 193 echo "running virtual address 128TB switch test"
 194 echo "-----------------------------"
 195 ./va_128TBswitch
 196 if [ $? -ne 0 ]; then
 197     echo "[FAIL]"
 198     exitcode=1
 199 else
 200     echo "[PASS]"
 201 fi
 202
 203 exit $exitcode