tools/testing/selftests/vm/run_vmtests

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