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

   1 #!/bin/bash
   2 # SPDX-License-Identifier: GPL-2.0+
   3 #
   4 # Run a kvm-based test of the specified tree on the specified configs.
   5 # Fully automated run and error checking, no graphics console.
   6 #
   7 # Execute this in the source tree.  Do not run it as a background task
   8 # because qemu does not seem to like that much.
   9 #
  10 # Usage: kvm-test-1-run.sh config builddir resdir seconds qemu-args boot_args
  11 #
  12 # qemu-args defaults to "-enable-kvm -nographic", along with arguments
  13 #                       specifying the number of CPUs and other options
  14 #                       generated from the underlying CPU architecture.
  15 # boot_args defaults to value returned by the per_version_boot_params
  16 #                       shell function.
  17 #
  18 # Anything you specify for either qemu-args or boot_args is appended to
  19 # the default values.  The "-smp" value is deduced from the contents of
  20 # the config fragment.
  21 #
  22 # More sophisticated argument parsing is clearly needed.
  23 #
  24 # Copyright (C) IBM Corporation, 2011
  25 #
  26 # Authors: Paul E. McKenney <paulmck@linux.ibm.com>
  27
  28 T=${TMPDIR-/tmp}/kvm-test-1-run.sh.$$
  29 trap 'rm -rf $T' 0
  30 mkdir $T
  31
  32 . functions.sh
  33 . $CONFIGFRAG/ver_functions.sh
  34
  35 config_template=${1}
  36 config_dir=`echo $config_template | sed -e 's,/[^/]*$,,'`
  37 title=`echo $config_template | sed -e 's/^.*\///'`
  38 builddir=${2}
  39 resdir=${3}
  40 if test -z "$resdir" -o ! -d "$resdir" -o ! -w "$resdir"
  41 then
  42         echo "kvm-test-1-run.sh :$resdir: Not a writable directory, cannot store results into it"
  43         exit 1
  44 fi
  45 echo ' ---' `date`: Starting build
  46 echo ' ---' Kconfig fragment at: $config_template >> $resdir/log
  47 touch $resdir/ConfigFragment.input $resdir/ConfigFragment
  48 if test -r "$config_dir/CFcommon"
  49 then
  50         echo " --- $config_dir/CFcommon" >> $resdir/ConfigFragment.input
  51         cat < $config_dir/CFcommon >> $resdir/ConfigFragment.input
  52         config_override.sh $config_dir/CFcommon $config_template > $T/Kc1
  53         grep '#CHECK#' $config_dir/CFcommon >> $resdir/ConfigFragment
  54 else
  55         cp $config_template $T/Kc1
  56 fi
  57 echo " --- $config_template" >> $resdir/ConfigFragment.input
  58 cat $config_template >> $resdir/ConfigFragment.input
  59 grep '#CHECK#' $config_template >> $resdir/ConfigFragment
  60 if test -n "$TORTURE_KCONFIG_ARG"
  61 then
  62         echo $TORTURE_KCONFIG_ARG | tr -s " " "\012" > $T/cmdline
  63         echo " --- --kconfig argument" >> $resdir/ConfigFragment.input
  64         cat $T/cmdline >> $resdir/ConfigFragment.input
  65         config_override.sh $T/Kc1 $T/cmdline > $T/Kc2
  66         # Note that "#CHECK#" is not permitted on commandline.
  67 else
  68         cp $T/Kc1 $T/Kc2
  69 fi
  70 cat $T/Kc2 >> $resdir/ConfigFragment
  71
  72 base_resdir=`echo $resdir | sed -e 's/\.[0-9]\+$//'`
  73 if test "$base_resdir" != "$resdir" -a -f $base_resdir/bzImage -a -f $base_resdir/vmlinux
  74 then
  75         # Rerunning previous test, so use that test's kernel.
  76         QEMU="`identify_qemu $base_resdir/vmlinux`"
  77         BOOT_IMAGE="`identify_boot_image $QEMU`"
  78         KERNEL=$base_resdir/${BOOT_IMAGE##*/} # use the last component of ${BOOT_IMAGE}
  79         ln -s $base_resdir/Make*.out $resdir  # for kvm-recheck.sh
  80         ln -s $base_resdir/.config $resdir  # for kvm-recheck.sh
  81         # Arch-independent indicator
  82         touch $resdir/builtkernel
  83 elif kvm-build.sh $T/Kc2 $resdir
  84 then
  85         # Had to build a kernel for this test.
  86         QEMU="`identify_qemu vmlinux`"
  87         BOOT_IMAGE="`identify_boot_image $QEMU`"
  88         cp vmlinux $resdir
  89         cp .config $resdir
  90         cp Module.symvers $resdir > /dev/null || :
  91         cp System.map $resdir > /dev/null || :
  92         if test -n "$BOOT_IMAGE"
  93         then
  94                 cp $BOOT_IMAGE $resdir
  95                 KERNEL=$resdir/${BOOT_IMAGE##*/}
  96                 # Arch-independent indicator
  97                 touch $resdir/builtkernel
  98         else
  99                 echo No identifiable boot image, not running KVM, see $resdir.
 100                 echo Do the torture scripts know about your architecture?
 101         fi
 102         parse-build.sh $resdir/Make.out $title
 103 else
 104         # Build failed.
 105         cp .config $resdir || :
 106         echo Build failed, not running KVM, see $resdir.
 107         if test -f $builddir.wait
 108         then
 109                 mv $builddir.wait $builddir.ready
 110         fi
 111         exit 1
 112 fi
 113 if test -f $builddir.wait
 114 then
 115         mv $builddir.wait $builddir.ready
 116 fi
 117 while test -f $builddir.ready
 118 do
 119         sleep 1
 120 done
 121 seconds=$4
 122 qemu_args=$5
 123 boot_args=$6
 124
 125 cd $KVM
 126 kstarttime=`awk 'BEGIN { print systime() }' < /dev/null`
 127 if test -z "$TORTURE_BUILDONLY"
 128 then
 129         echo ' ---' `date`: Starting kernel
 130 fi
 131
 132 # Generate -smp qemu argument.
 133 qemu_args="-enable-kvm -nographic $qemu_args"
 134 cpu_count=`configNR_CPUS.sh $resdir/ConfigFragment`
 135 cpu_count=`configfrag_boot_cpus "$boot_args" "$config_template" "$cpu_count"`
 136 vcpus=`identify_qemu_vcpus`
 137 if test $cpu_count -gt $vcpus
 138 then
 139         echo CPU count limited from $cpu_count to $vcpus | tee -a $resdir/Warnings
 140         cpu_count=$vcpus
 141 fi
 142 qemu_args="`specify_qemu_cpus "$QEMU" "$qemu_args" "$cpu_count"`"
 143
 144 # Generate architecture-specific and interaction-specific qemu arguments
 145 qemu_args="$qemu_args `identify_qemu_args "$QEMU" "$resdir/console.log"`"
 146
 147 # Generate qemu -append arguments
 148 qemu_append="`identify_qemu_append "$QEMU"`"
 149
 150 # Pull in Kconfig-fragment boot parameters
 151 boot_args="`configfrag_boot_params "$boot_args" "$config_template"`"
 152 # Generate kernel-version-specific boot parameters
 153 boot_args="`per_version_boot_params "$boot_args" $resdir/.config $seconds`"
 154
 155 if test -n "$TORTURE_BUILDONLY"
 156 then
 157         echo Build-only run specified, boot/test omitted.
 158         touch $resdir/buildonly
 159         exit 0
 160 fi
 161 echo "NOTE: $QEMU either did not run or was interactive" > $resdir/console.log
 162 echo $QEMU $qemu_args -m $TORTURE_QEMU_MEM -kernel $KERNEL -append \"$qemu_append $boot_args\" > $resdir/qemu-cmd
 163 ( $QEMU $qemu_args -m $TORTURE_QEMU_MEM -kernel $KERNEL -append "$qemu_append $boot_args" > $resdir/qemu-output 2>&1 & echo $! > $resdir/qemu_pid; wait `cat  $resdir/qemu_pid`; echo $? > $resdir/qemu-retval ) &
 164 commandcompleted=0
 165 sleep 10 # Give qemu's pid a chance to reach the file
 166 if test -s "$resdir/qemu_pid"
 167 then
 168         qemu_pid=`cat "$resdir/qemu_pid"`
 169         echo Monitoring qemu job at pid $qemu_pid
 170 else
 171         qemu_pid=""
 172         echo Monitoring qemu job at yet-as-unknown pid
 173 fi
 174 while :
 175 do
 176         if test -z "$qemu_pid" -a -s "$resdir/qemu_pid"
 177         then
 178                 qemu_pid=`cat "$resdir/qemu_pid"`
 179         fi
 180         kruntime=`awk 'BEGIN { print systime() - '"$kstarttime"' }' < /dev/null`
 181         if test -z "$qemu_pid" || kill -0 "$qemu_pid" > /dev/null 2>&1
 182         then
 183                 if test $kruntime -ge $seconds
 184                 then
 185                         break;
 186                 fi
 187                 sleep 1
 188         else
 189                 commandcompleted=1
 190                 if test $kruntime -lt $seconds
 191                 then
 192                         echo Completed in $kruntime vs. $seconds >> $resdir/Warnings 2>&1
 193                         grep "^(qemu) qemu:" $resdir/kvm-test-1-run.sh.out >> $resdir/Warnings 2>&1
 194                         killpid="`sed -n "s/^(qemu) qemu: terminating on signal [0-9]* from pid \([0-9]*\).*$/\1/p" $resdir/Warnings`"
 195                         if test -n "$killpid"
 196                         then
 197                                 echo "ps -fp $killpid" >> $resdir/Warnings 2>&1
 198                                 ps -fp $killpid >> $resdir/Warnings 2>&1
 199                         fi
 200                 else
 201                         echo ' ---' `date`: "Kernel done"
 202                 fi
 203                 break
 204         fi
 205 done
 206 if test -z "$qemu_pid" -a -s "$resdir/qemu_pid"
 207 then
 208         qemu_pid=`cat "$resdir/qemu_pid"`
 209 fi
 210 if test $commandcompleted -eq 0 -a -n "$qemu_pid"
 211 then
 212         echo Grace period for qemu job at pid $qemu_pid
 213         oldline="`tail $resdir/console.log`"
 214         while :
 215         do
 216                 kruntime=`awk 'BEGIN { print systime() - '"$kstarttime"' }' < /dev/null`
 217                 if kill -0 $qemu_pid > /dev/null 2>&1
 218                 then
 219                         :
 220                 else
 221                         break
 222                 fi
 223                 must_continue=no
 224                 newline="`tail $resdir/console.log`"
 225                 if test "$newline" != "$oldline" && echo $newline | grep -q ' [0-9]\+us : '
 226                 then
 227                         must_continue=yes
 228                 fi
 229                 last_ts="`tail $resdir/console.log | grep '^\[ *[0-9]\+\.[0-9]\+]' | tail -1 | sed -e 's/^\[ *//' -e 's/\..*$//'`"
 230                 if test -z "last_ts"
 231                 then
 232                         last_ts=0
 233                 fi
 234                 if test "$newline" != "$oldline" -a "$last_ts" -lt $((seconds + $TORTURE_SHUTDOWN_GRACE))
 235                 then
 236                         must_continue=yes
 237                 fi
 238                 if test $must_continue = no -a $kruntime -ge $((seconds + $TORTURE_SHUTDOWN_GRACE))
 239                 then
 240                         echo "!!! PID $qemu_pid hung at $kruntime vs. $seconds seconds" >> $resdir/Warnings 2>&1
 241                         kill -KILL $qemu_pid
 242                         break
 243                 fi
 244                 oldline=$newline
 245                 sleep 10
 246         done
 247 elif test -z "$qemu_pid"
 248 then
 249         echo Unknown PID, cannot kill qemu command
 250 fi
 251
 252 parse-console.sh $resdir/console.log $title