tools/testing/selftests/rcutorture/bin/kvm-test-1-run.sh

   1 #!/bin/bash
   2 #
   3 # Run a kvm-based test of the specified tree on the specified configs.
   4 # Fully automated run and error checking, no graphics console.
   5 #
   6 # Execute this in the source tree.  Do not run it as a background task
   7 # because qemu does not seem to like that much.
   8 #
   9 # Usage: kvm-test-1-run.sh config builddir resdir seconds qemu-args boot_args
  10 #
  11 # qemu-args defaults to "-enable-kvm -nographic", along with arguments
  12 #                       specifying the number of CPUs and other options
  13 #                       generated from the underlying CPU architecture.
  14 # boot_args defaults to value returned by the per_version_boot_params
  15 #                       shell function.
  16 #
  17 # Anything you specify for either qemu-args or boot_args is appended to
  18 # the default values.  The "-smp" value is deduced from the contents of
  19 # the config fragment.
  20 #
  21 # More sophisticated argument parsing is clearly needed.
  22 #
  23 # This program is free software; you can redistribute it and/or modify
  24 # it under the terms of the GNU General Public License as published by
  25 # the Free Software Foundation; either version 2 of the License, or
  26 # (at your option) any later version.
  27 #
  28 # This program is distributed in the hope that it will be useful,
  29 # but WITHOUT ANY WARRANTY; without even the implied warranty of
  30 # MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE.  See the
  31 # GNU General Public License for more details.
  32 #
  33 # You should have received a copy of the GNU General Public License
  34 # along with this program; if not, you can access it online at
  35 # http://www.gnu.org/licenses/gpl-2.0.html.
  36 #
  37 # Copyright (C) IBM Corporation, 2011
  38 #
  39 # Authors: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
  40
  41 T=/tmp/kvm-test-1-run.sh.$$
  42 trap 'rm -rf $T' 0
  43 touch $T
  44
  45 . $KVM/bin/functions.sh
  46 . $CONFIGFRAG/ver_functions.sh
  47
  48 config_template=${1}
  49 config_dir=`echo $config_template | sed -e 's,/[^/]*$,,'`
  50 title=`echo $config_template | sed -e 's/^.*\///'`
  51 builddir=${2}
  52 if test -z "$builddir" -o ! -d "$builddir" -o ! -w "$builddir"
  53 then
  54         echo "kvm-test-1-run.sh :$builddir: Not a writable directory, cannot build into it"
  55         exit 1
  56 fi
  57 resdir=${3}
  58 if test -z "$resdir" -o ! -d "$resdir" -o ! -w "$resdir"
  59 then
  60         echo "kvm-test-1-run.sh :$resdir: Not a writable directory, cannot store results into it"
  61         exit 1
  62 fi
  63 cp $config_template $resdir/ConfigFragment
  64 echo ' ---' `date`: Starting build
  65 echo ' ---' Kconfig fragment at: $config_template >> $resdir/log
  66 if test -r "$config_dir/CFcommon"
  67 then
  68         cat < $config_dir/CFcommon >> $T
  69 fi
  70 # Optimizations below this point
  71 # CONFIG_USB=n
  72 # CONFIG_SECURITY=n
  73 # CONFIG_NFS_FS=n
  74 # CONFIG_SOUND=n
  75 # CONFIG_INPUT_JOYSTICK=n
  76 # CONFIG_INPUT_TABLET=n
  77 # CONFIG_INPUT_TOUCHSCREEN=n
  78 # CONFIG_INPUT_MISC=n
  79 # CONFIG_INPUT_MOUSE=n
  80 # # CONFIG_NET=n # disables console access, so accept the slower build.
  81 # CONFIG_SCSI=n
  82 # CONFIG_ATA=n
  83 # CONFIG_FAT_FS=n
  84 # CONFIG_MSDOS_FS=n
  85 # CONFIG_VFAT_FS=n
  86 # CONFIG_ISO9660_FS=n
  87 # CONFIG_QUOTA=n
  88 # CONFIG_HID=n
  89 # CONFIG_CRYPTO=n
  90 # CONFIG_PCCARD=n
  91 # CONFIG_PCMCIA=n
  92 # CONFIG_CARDBUS=n
  93 # CONFIG_YENTA=n
  94 base_resdir=`echo $resdir | sed -e 's/\.[0-9]\+$//'`
  95 if test "$base_resdir" != "$resdir" -a -f $base_resdir/bzImage -a -f $base_resdir/vmlinux
  96 then
  97         # Rerunning previous test, so use that test's kernel.
  98         QEMU="`identify_qemu $base_resdir/vmlinux`"
  99         BOOT_IMAGE="`identify_boot_image $QEMU`"
 100         KERNEL=$base_resdir/${BOOT_IMAGE##*/} # use the last component of ${BOOT_IMAGE}
 101         ln -s $base_resdir/Make*.out $resdir  # for kvm-recheck.sh
 102         ln -s $base_resdir/.config $resdir  # for kvm-recheck.sh
 103 elif kvm-build.sh $config_template $builddir $T
 104 then
 105         # Had to build a kernel for this test.
 106         QEMU="`identify_qemu $builddir/vmlinux`"
 107         BOOT_IMAGE="`identify_boot_image $QEMU`"
 108         cp $builddir/Make*.out $resdir
 109         cp $builddir/vmlinux $resdir
 110         cp $builddir/.config $resdir
 111         if test -n "$BOOT_IMAGE"
 112         then
 113                 cp $builddir/$BOOT_IMAGE $resdir
 114                 KERNEL=$resdir/${BOOT_IMAGE##*/}
 115         else
 116                 echo No identifiable boot image, not running KVM, see $resdir.
 117                 echo Do the torture scripts know about your architecture?
 118         fi
 119         parse-build.sh $resdir/Make.out $title
 120 else
 121         # Build failed.
 122         cp $builddir/Make*.out $resdir
 123         cp $builddir/.config $resdir || :
 124         echo Build failed, not running KVM, see $resdir.
 125         if test -f $builddir.wait
 126         then
 127                 mv $builddir.wait $builddir.ready
 128         fi
 129         exit 1
 130 fi
 131 if test -f $builddir.wait
 132 then
 133         mv $builddir.wait $builddir.ready
 134 fi
 135 while test -f $builddir.ready
 136 do
 137         sleep 1
 138 done
 139 seconds=$4
 140 qemu_args=$5
 141 boot_args=$6
 142
 143 cd $KVM
 144 kstarttime=`awk 'BEGIN { print systime() }' < /dev/null`
 145 if test -z "$TORTURE_BUILDONLY"
 146 then
 147         echo ' ---' `date`: Starting kernel
 148 fi
 149
 150 # Generate -smp qemu argument.
 151 qemu_args="-enable-kvm -nographic $qemu_args"
 152 cpu_count=`configNR_CPUS.sh $config_template`
 153 cpu_count=`configfrag_boot_cpus "$boot_args" "$config_template" "$cpu_count"`
 154 vcpus=`identify_qemu_vcpus`
 155 if test $cpu_count -gt $vcpus
 156 then
 157         echo CPU count limited from $cpu_count to $vcpus
 158         touch $resdir/Warnings
 159         echo CPU count limited from $cpu_count to $vcpus >> $resdir/Warnings
 160         cpu_count=$vcpus
 161 fi
 162 qemu_args="`specify_qemu_cpus "$QEMU" "$qemu_args" "$cpu_count"`"
 163
 164 # Generate architecture-specific and interaction-specific qemu arguments
 165 qemu_args="$qemu_args `identify_qemu_args "$QEMU" "$resdir/console.log"`"
 166
 167 # Generate qemu -append arguments
 168 qemu_append="`identify_qemu_append "$QEMU"`"
 169
 170 # Pull in Kconfig-fragment boot parameters
 171 boot_args="`configfrag_boot_params "$boot_args" "$config_template"`"
 172 # Generate kernel-version-specific boot parameters
 173 boot_args="`per_version_boot_params "$boot_args" $builddir/.config $seconds`"
 174
 175 if test -n "$TORTURE_BUILDONLY"
 176 then
 177         echo Build-only run specified, boot/test omitted.
 178         touch $resdir/buildonly
 179         exit 0
 180 fi
 181 echo "NOTE: $QEMU either did not run or was interactive" > $resdir/console.log
 182 echo $QEMU $qemu_args -m 512 -kernel $KERNEL -append \"$qemu_append $boot_args\" > $resdir/qemu-cmd
 183 ( $QEMU $qemu_args -m 512 -kernel $KERNEL -append "$qemu_append $boot_args"& echo $! > $resdir/qemu_pid; wait `cat  $resdir/qemu_pid`; echo $? > $resdir/qemu-retval ) &
 184 commandcompleted=0
 185 sleep 10 # Give qemu's pid a chance to reach the file
 186 if test -s "$resdir/qemu_pid"
 187 then
 188         qemu_pid=`cat "$resdir/qemu_pid"`
 189         echo Monitoring qemu job at pid $qemu_pid
 190 else
 191         qemu_pid=""
 192         echo Monitoring qemu job at yet-as-unknown pid
 193 fi
 194 while :
 195 do
 196         if test -z "$qemu_pid" -a -s "$resdir/qemu_pid"
 197         then
 198                 qemu_pid=`cat "$resdir/qemu_pid"`
 199         fi
 200         kruntime=`awk 'BEGIN { print systime() - '"$kstarttime"' }' < /dev/null`
 201         if test -z "$qemu_pid" || kill -0 "$qemu_pid" > /dev/null 2>&1
 202         then
 203                 if test $kruntime -ge $seconds
 204                 then
 205                         break;
 206                 fi
 207                 sleep 1
 208         else
 209                 commandcompleted=1
 210                 if test $kruntime -lt $seconds
 211                 then
 212                         echo Completed in $kruntime vs. $seconds >> $resdir/Warnings 2>&1
 213                         grep "^(qemu) qemu:" $resdir/kvm-test-1-run.sh.out >> $resdir/Warnings 2>&1
 214                         killpid="`sed -n "s/^(qemu) qemu: terminating on signal [0-9]* from pid \([0-9]*\).*$/\1/p" $resdir/Warnings`"
 215                         if test -n "$killpid"
 216                         then
 217                                 echo "ps -fp $killpid" >> $resdir/Warnings 2>&1
 218                                 ps -fp $killpid >> $resdir/Warnings 2>&1
 219                         fi
 220                 else
 221                         echo ' ---' `date`: "Kernel done"
 222                 fi
 223                 break
 224         fi
 225 done
 226 if test -z "$qemu_pid" -a -s "$resdir/qemu_pid"
 227 then
 228         qemu_pid=`cat "$resdir/qemu_pid"`
 229 fi
 230 if test $commandcompleted -eq 0 -a -n "$qemu_pid"
 231 then
 232         echo Grace period for qemu job at pid $qemu_pid
 233         oldline="`tail $resdir/console.log`"
 234         while :
 235         do
 236                 kruntime=`awk 'BEGIN { print systime() - '"$kstarttime"' }' < /dev/null`
 237                 if kill -0 $qemu_pid > /dev/null 2>&1
 238                 then
 239                         :
 240                 else
 241                         break
 242                 fi
 243                 must_continue=no
 244                 newline="`tail $resdir/console.log`"
 245                 if test "$newline" != "$oldline" && echo $newline | grep -q ' [0-9]\+us : '
 246                 then
 247                         must_continue=yes
 248                 fi
 249                 last_ts="`tail $resdir/console.log | grep '^\[ *[0-9]\+\.[0-9]\+]' | tail -1 | sed -e 's/^\[ *//' -e 's/\..*$//'`"
 250                 if test -z "last_ts"
 251                 then
 252                         last_ts=0
 253                 fi
 254                 if test "$newline" != "$oldline" -a "$last_ts" -lt $((seconds + $TORTURE_SHUTDOWN_GRACE))
 255                 then
 256                         must_continue=yes
 257                 fi
 258                 if test $must_continue = no -a $kruntime -ge $((seconds + $TORTURE_SHUTDOWN_GRACE))
 259                 then
 260                         echo "!!! PID $qemu_pid hung at $kruntime vs. $seconds seconds" >> $resdir/Warnings 2>&1
 261                         kill -KILL $qemu_pid
 262                         break
 263                 fi
 264                 oldline=$newline
 265                 sleep 10
 266         done
 267 elif test -z "$qemu_pid"
 268 then
 269         echo Unknown PID, cannot kill qemu command
 270 fi
 271
 272 parse-torture.sh $resdir/console.log $title
 273 parse-console.sh $resdir/console.log $title