#!/bin/bash
#
# Run a kvm-based test of the specified tree on the specified configs.
# Fully automated run and error checking, no graphics console.
#
# Execute this in the source tree. Do not run it as a background task
# because qemu does not seem to like that much.
#
# Usage: kvm-test-1-run.sh config builddir resdir seconds qemu-args boot_args
#
# qemu-args defaults to "-enable-kvm -nographic", along with arguments
# specifying the number of CPUs and other options
# generated from the underlying CPU architecture.
# boot_args defaults to value returned by the per_version_boot_params
# shell function.
#
# Anything you specify for either qemu-args or boot_args is appended to
# the default values. The "-smp" value is deduced from the contents of
# the config fragment.
#
# More sophisticated argument parsing is clearly needed.
#
# This program is free software; you can redistribute it and/or modify
# it under the terms of the GNU General Public License as published by
# the Free Software Foundation; either version 2 of the License, or
# (at your option) any later version.
#
# This program is distributed in the hope that it will be useful,
# but WITHOUT ANY WARRANTY; without even the implied warranty of
# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
# GNU General Public License for more details.
#
# You should have received a copy of the GNU General Public License
# along with this program; if not, you can access it online at
# http://www.gnu.org/licenses/gpl-2.0.html.
#
# Copyright (C) IBM Corporation, 2011
#
# Authors: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
T=/tmp/kvm-test-1-run.sh.$$
trap 'rm -rf $T' 0
touch $T
. $KVM/bin/functions.sh
. $CONFIGFRAG/ver_functions.sh
config_template=${1}
config_dir=`echo $config_template | sed -e 's,/[^/]*$,,'`
title=`echo $config_template | sed -e 's/^.*\///'`
builddir=${2}
if test -z "$builddir" -o ! -d "$builddir" -o ! -w "$builddir"
then
echo "kvm-test-1-run.sh :$builddir: Not a writable directory, cannot build into it"
exit 1
fi
resdir=${3}
if test -z "$resdir" -o ! -d "$resdir" -o ! -w "$resdir"
then
echo "kvm-test-1-run.sh :$resdir: Not a writable directory, cannot store results into it"
exit 1
fi
cp $config_template $resdir/ConfigFragment
echo ' ---' `date`: Starting build
echo ' ---' Kconfig fragment at: $config_template >> $resdir/log
if test -r "$config_dir/CFcommon"
then
cat < $config_dir/CFcommon >> $T
fi
# Optimizations below this point
# CONFIG_USB=n
# CONFIG_SECURITY=n
# CONFIG_NFS_FS=n
# CONFIG_SOUND=n
# CONFIG_INPUT_JOYSTICK=n
# CONFIG_INPUT_TABLET=n
# CONFIG_INPUT_TOUCHSCREEN=n
# CONFIG_INPUT_MISC=n
# CONFIG_INPUT_MOUSE=n
# # CONFIG_NET=n # disables console access, so accept the slower build.
# CONFIG_SCSI=n
# CONFIG_ATA=n
# CONFIG_FAT_FS=n
# CONFIG_MSDOS_FS=n
# CONFIG_VFAT_FS=n
# CONFIG_ISO9660_FS=n
# CONFIG_QUOTA=n
# CONFIG_HID=n
# CONFIG_CRYPTO=n
# CONFIG_PCCARD=n
# CONFIG_PCMCIA=n
# CONFIG_CARDBUS=n
# CONFIG_YENTA=n
base_resdir=`echo $resdir | sed -e 's/\.[0-9]\+$//'`
if test "$base_resdir" != "$resdir" -a -f $base_resdir/bzImage -a -f $base_resdir/vmlinux
then
# Rerunning previous test, so use that test's kernel.
QEMU="`identify_qemu $base_resdir/vmlinux`"
BOOT_IMAGE="`identify_boot_image $QEMU`"
KERNEL=$base_resdir/${BOOT_IMAGE##*/} # use the last component of ${BOOT_IMAGE}
ln -s $base_resdir/Make*.out $resdir # for kvm-recheck.sh
ln -s $base_resdir/.config $resdir # for kvm-recheck.sh
elif kvm-build.sh $config_template $builddir $T
then
# Had to build a kernel for this test.
QEMU="`identify_qemu $builddir/vmlinux`"
BOOT_IMAGE="`identify_boot_image $QEMU`"
cp $builddir/Make*.out $resdir
cp $builddir/vmlinux $resdir
cp $builddir/.config $resdir
if test -n "$BOOT_IMAGE"
then
cp $builddir/$BOOT_IMAGE $resdir
KERNEL=$resdir/${BOOT_IMAGE##*/}
else
echo No identifiable boot image, not running KVM, see $resdir.
echo Do the torture scripts know about your architecture?
fi
parse-build.sh $resdir/Make.out $title
else
# Build failed.
cp $builddir/Make*.out $resdir
cp $builddir/.config $resdir || :
echo Build failed, not running KVM, see $resdir.
if test -f $builddir.wait
then
mv $builddir.wait $builddir.ready
fi
exit 1
fi
if test -f $builddir.wait
then
mv $builddir.wait $builddir.ready
fi
while test -f $builddir.ready
do
sleep 1
done
seconds=$4
qemu_args=$5
boot_args=$6
cd $KVM
kstarttime=`awk 'BEGIN { print systime() }' < /dev/null`
if test -z "$TORTURE_BUILDONLY"
then
echo ' ---' `date`: Starting kernel
fi
# Generate -smp qemu argument.
qemu_args="-enable-kvm -nographic $qemu_args"
cpu_count=`configNR_CPUS.sh $config_template`
cpu_count=`configfrag_boot_cpus "$boot_args" "$config_template" "$cpu_count"`
vcpus=`identify_qemu_vcpus`
if test $cpu_count -gt $vcpus
then
echo CPU count limited from $cpu_count to $vcpus
touch $resdir/Warnings
echo CPU count limited from $cpu_count to $vcpus >> $resdir/Warnings
cpu_count=$vcpus
fi
qemu_args="`specify_qemu_cpus "$QEMU" "$qemu_args" "$cpu_count"`"
# Generate architecture-specific and interaction-specific qemu arguments
qemu_args="$qemu_args `identify_qemu_args "$QEMU" "$resdir/console.log"`"
# Generate qemu -append arguments
qemu_append="`identify_qemu_append "$QEMU"`"
# Pull in Kconfig-fragment boot parameters
boot_args="`configfrag_boot_params "$boot_args" "$config_template"`"
# Generate kernel-version-specific boot parameters
boot_args="`per_version_boot_params "$boot_args" $builddir/.config $seconds`"
if test -n "$TORTURE_BUILDONLY"
then
echo Build-only run specified, boot/test omitted.
touch $resdir/buildonly
exit 0
fi
echo "NOTE: $QEMU either did not run or was interactive" > $resdir/console.log
echo $QEMU $qemu_args -m 512 -kernel $KERNEL -append \"$qemu_append $boot_args\" > $resdir/qemu-cmd
( $QEMU $qemu_args -m 512 -kernel $KERNEL -append "$qemu_append $boot_args"& echo $! > $resdir/qemu_pid; wait `cat $resdir/qemu_pid`; echo $? > $resdir/qemu-retval ) &
commandcompleted=0
sleep 10 # Give qemu's pid a chance to reach the file
if test -s "$resdir/qemu_pid"
then
qemu_pid=`cat "$resdir/qemu_pid"`
echo Monitoring qemu job at pid $qemu_pid
else
qemu_pid=""
echo Monitoring qemu job at yet-as-unknown pid
fi
while :
do
if test -z "$qemu_pid" -a -s "$resdir/qemu_pid"
then
qemu_pid=`cat "$resdir/qemu_pid"`
fi
kruntime=`awk 'BEGIN { print systime() - '"$kstarttime"' }' < /dev/null`
if test -z "$qemu_pid" || kill -0 "$qemu_pid" > /dev/null 2>&1
then
if test $kruntime -ge $seconds
then
break;
fi
sleep 1
else
commandcompleted=1
if test $kruntime -lt $seconds
then
echo Completed in $kruntime vs. $seconds >> $resdir/Warnings 2>&1
grep "^(qemu) qemu:" $resdir/kvm-test-1-run.sh.out >> $resdir/Warnings 2>&1
killpid="`sed -n "s/^(qemu) qemu: terminating on signal [0-9]* from pid \([0-9]*\).*$/\1/p" $resdir/Warnings`"
if test -n "$killpid"
then
echo "ps -fp $killpid" >> $resdir/Warnings 2>&1
ps -fp $killpid >> $resdir/Warnings 2>&1
fi
else
echo ' ---' `date`: "Kernel done"
fi
break
fi
done
if test -z "$qemu_pid" -a -s "$resdir/qemu_pid"
then
qemu_pid=`cat "$resdir/qemu_pid"`
fi
if test $commandcompleted -eq 0 -a -n "$qemu_pid"
then
echo Grace period for qemu job at pid $qemu_pid
oldline="`tail $resdir/console.log`"
while :
do
kruntime=`awk 'BEGIN { print systime() - '"$kstarttime"' }' < /dev/null`
if kill -0 $qemu_pid > /dev/null 2>&1
then
:
else
break
fi
must_continue=no
newline="`tail $resdir/console.log`"
if test "$newline" != "$oldline" && echo $newline | grep -q ' [0-9]\+us : '
then
must_continue=yes
fi
last_ts="`tail $resdir/console.log | grep '^\[ *[0-9]\+\.[0-9]\+]' | tail -1 | sed -e 's/^\[ *//' -e 's/\..*$//'`"
if test -z "last_ts"
then
last_ts=0
fi
if test "$newline" != "$oldline" -a "$last_ts" -lt $((seconds + $TORTURE_SHUTDOWN_GRACE))
then
must_continue=yes
fi
if test $must_continue = no -a $kruntime -ge $((seconds + $TORTURE_SHUTDOWN_GRACE))
then
echo "!!! PID $qemu_pid hung at $kruntime vs. $seconds seconds" >> $resdir/Warnings 2>&1
kill -KILL $qemu_pid
break
fi
oldline=$newline
sleep 10
done
elif test -z "$qemu_pid"
then
echo Unknown PID, cannot kill qemu command
fi
parse-torture.sh $resdir/console.log $title
parse-console.sh $resdir/console.log $title
