tools/testing/selftests/rcutorture/bin/kvm-test-1-rcu.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: sh kvm-test-1-rcu.sh config builddir resdir minutes qemu-args bootargs
  10 #
  11 # qemu-args defaults to "" -- you will want "-nographic" if running headless.
  12 # bootargs defaults to  "root=/dev/sda noapic selinux=0 console=ttyS0"
  13 #                       "initcall_debug debug rcutorture.stat_interval=15"
  14 #                       "rcutorture.shutdown_secs=$((minutes * 60))"
  15 #                       "rcutorture.rcutorture_runnable=1"
  16 #
  17 # Anything you specify for either qemu-args or bootargs 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 grace=120
  42
  43 T=/tmp/kvm-test-1-rcu.sh.$$
  44 trap 'rm -rf $T' 0
  45
  46 . $KVM/bin/functions.sh
  47 . $KVPATH/ver_functions.sh
  48
  49 config_template=${1}
  50 title=`echo $config_template | sed -e 's/^.*\///'`
  51 builddir=${2}
  52 if test -z "$builddir" -o ! -d "$builddir" -o ! -w "$builddir"
  53 then
  54         echo "kvm-test-1-rcu.sh :$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-rcu.sh :$resdir: Not a writable directory, cannot build 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 cat << '___EOF___' >> $T
  67 CONFIG_RCU_TORTURE_TEST=y
  68 ___EOF___
  69 # Optimizations below this point
  70 # CONFIG_USB=n
  71 # CONFIG_SECURITY=n
  72 # CONFIG_NFS_FS=n
  73 # CONFIG_SOUND=n
  74 # CONFIG_INPUT_JOYSTICK=n
  75 # CONFIG_INPUT_TABLET=n
  76 # CONFIG_INPUT_TOUCHSCREEN=n
  77 # CONFIG_INPUT_MISC=n
  78 # CONFIG_INPUT_MOUSE=n
  79 # # CONFIG_NET=n # disables console access, so accept the slower build.
  80 # CONFIG_SCSI=n
  81 # CONFIG_ATA=n
  82 # CONFIG_FAT_FS=n
  83 # CONFIG_MSDOS_FS=n
  84 # CONFIG_VFAT_FS=n
  85 # CONFIG_ISO9660_FS=n
  86 # CONFIG_QUOTA=n
  87 # CONFIG_HID=n
  88 # CONFIG_CRYPTO=n
  89 # CONFIG_PCCARD=n
  90 # CONFIG_PCMCIA=n
  91 # CONFIG_CARDBUS=n
  92 # CONFIG_YENTA=n
  93 if kvm-build.sh $config_template $builddir $T
  94 then
  95         cp $builddir/Make*.out $resdir
  96         cp $builddir/.config $resdir
  97         cp $builddir/arch/x86/boot/bzImage $resdir
  98         parse-build.sh $resdir/Make.out $title
  99 else
 100         cp $builddir/Make*.out $resdir
 101         echo Build failed, not running KVM, see $resdir.
 102         exit 1
 103 fi
 104 minutes=$4
 105 seconds=$(($minutes * 60))
 106 qemu_args=$5
 107 boot_args=$6
 108
 109 cd $KVM
 110 kstarttime=`awk 'BEGIN { print systime() }' < /dev/null`
 111 echo ' ---' `date`: Starting kernel
 112
 113 # Determine the appropriate flavor of qemu command.
 114 QEMU="`identify_qemu $builddir/vmlinux.o`"
 115
 116 # Generate -smp qemu argument.
 117 cpu_count=`configNR_CPUS.sh $config_template`
 118 vcpus=`identify_qemu_vcpus`
 119 if test $cpu_count -gt $vcpus
 120 then
 121         echo CPU count limited from $cpu_count to $vcpus
 122         touch $resdir/Warnings
 123         echo CPU count limited from $cpu_count to $vcpus >> $resdir/Warnings
 124         cpu_count=$vcpus
 125 fi
 126 qemu_args="`specify_qemu_cpus "$QEMU" "$qemu_args" "$cpu_count"`"
 127
 128 # Generate architecture-specific and interaction-specific qemu arguments
 129 qemu_args="$qemu_args `identify_qemu_args "$QEMU" "$builddir/console.log"`"
 130
 131 # Generate qemu -append arguments
 132 qemu_append="`identify_qemu_append "$QEMU"`"
 133
 134 # Pull in Kconfig-fragment boot parameters
 135 boot_args="`configfrag_boot_params "$boot_args" "$config_template"`"
 136 # Generate CPU-hotplug boot parameters
 137 boot_args="`rcutorture_param_onoff "$boot_args" $builddir/.config`"
 138 # Generate rcu_barrier() boot parameter
 139 boot_args="`rcutorture_param_n_barrier_cbs "$boot_args"`"
 140 # Pull in standard rcutorture boot arguments
 141 boot_args="$boot_args rcutorture.stat_interval=15 rcutorture.shutdown_secs=$seconds rcutorture.rcutorture_runnable=1"
 142
 143 echo $QEMU $qemu_args -m 512 -kernel $builddir/arch/x86/boot/bzImage -append \"$qemu_append $boot_args\" > $resdir/qemu-cmd
 144 if test -n "$RCU_BUILDONLY"
 145 then
 146         echo Build-only run specified, boot/test omitted.
 147         exit 0
 148 fi
 149 $QEMU $qemu_args -m 512 -kernel $builddir/arch/x86/boot/bzImage -append "$qemu_append $boot_args" &
 150 qemu_pid=$!
 151 commandcompleted=0
 152 echo Monitoring qemu job at pid $qemu_pid
 153 for ((i=0;i<$seconds;i++))
 154 do
 155         if kill -0 $qemu_pid > /dev/null 2>&1
 156         then
 157                 sleep 1
 158         else
 159                 commandcompleted=1
 160                 kruntime=`awk 'BEGIN { print systime() - '"$kstarttime"' }' < /dev/null`
 161                 if test $kruntime -lt $seconds
 162                 then
 163                         echo Completed in $kruntime vs. $seconds >> $resdir/Warnings 2>&1
 164                 else
 165                         echo ' ---' `date`: Kernel done
 166                 fi
 167                 break
 168         fi
 169 done
 170 if test $commandcompleted -eq 0
 171 then
 172         echo Grace period for qemu job at pid $qemu_pid
 173         for ((i=0;i<=$grace;i++))
 174         do
 175                 if kill -0 $qemu_pid > /dev/null 2>&1
 176                 then
 177                         sleep 1
 178                 else
 179                         break
 180                 fi
 181                 if test $i -eq $grace
 182                 then
 183                         kruntime=`awk 'BEGIN { print systime() - '"$kstarttime"' }'`
 184                         echo "!!! Hang at $kruntime vs. $seconds seconds" >> $resdir/Warnings 2>&1
 185                         kill -KILL $qemu_pid
 186                 fi
 187         done
 188 fi
 189
 190 cp $builddir/console.log $resdir
 191 parse-rcutorture.sh $resdir/console.log $title
 192 parse-console.sh $resdir/console.log $title