#!/bin/bash
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#
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# Run a kvm-based test of the specified tree on the specified configs.
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# Fully automated run and error checking, no graphics console.
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#
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# Execute this in the source tree. Do not run it as a background task
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# because qemu does not seem to like that much.
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#
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# Usage: kvm-test-1-run.sh config builddir resdir seconds qemu-args boot_args
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#
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# qemu-args defaults to "-enable-kvm -nographic", along with arguments
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# specifying the number of CPUs and other options
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# generated from the underlying CPU architecture.
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# boot_args defaults to value returned by the per_version_boot_params
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# shell function.
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#
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# Anything you specify for either qemu-args or boot_args is appended to
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# the default values. The "-smp" value is deduced from the contents of
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# the config fragment.
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#
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# More sophisticated argument parsing is clearly needed.
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#
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# This program is free software; you can redistribute it and/or modify
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# it under the terms of the GNU General Public License as published by
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# the Free Software Foundation; either version 2 of the License, or
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# (at your option) any later version.
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#
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# This program is distributed in the hope that it will be useful,
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# but WITHOUT ANY WARRANTY; without even the implied warranty of
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# MERCHANTABILITY or FITNESS FOR A PARTICULAR PURPOSE. See the
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# GNU General Public License for more details.
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#
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# You should have received a copy of the GNU General Public License
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# along with this program; if not, you can access it online at
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# http://www.gnu.org/licenses/gpl-2.0.html.
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#
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# Copyright (C) IBM Corporation, 2011
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#
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# Authors: Paul E. McKenney <paulmck@linux.vnet.ibm.com>
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T=${TMPDIR-/tmp}/kvm-test-1-run.sh.$$
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trap 'rm -rf $T' 0
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mkdir $T
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. functions.sh
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. $CONFIGFRAG/ver_functions.sh
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config_template=${1}
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config_dir=`echo $config_template | sed -e 's,/[^/]*$,,'`
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title=`echo $config_template | sed -e 's/^.*\///'`
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builddir=${2}
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if test -z "$builddir" -o ! -d "$builddir" -o ! -w "$builddir"
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then
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echo "kvm-test-1-run.sh :$builddir: Not a writable directory, cannot build into it"
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exit 1
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fi
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resdir=${3}
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if test -z "$resdir" -o ! -d "$resdir" -o ! -w "$resdir"
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then
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echo "kvm-test-1-run.sh :$resdir: Not a writable directory, cannot store results into it"
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exit 1
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fi
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echo ' ---' `date`: Starting build
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echo ' ---' Kconfig fragment at: $config_template >> $resdir/log
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touch $resdir/ConfigFragment.input $resdir/ConfigFragment
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if test -r "$config_dir/CFcommon"
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then
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echo " --- $config_dir/CFcommon" >> $resdir/ConfigFragment.input
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cat < $config_dir/CFcommon >> $resdir/ConfigFragment.input
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config_override.sh $config_dir/CFcommon $config_template > $T/Kc1
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grep '#CHECK#' $config_dir/CFcommon >> $resdir/ConfigFragment
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else
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cp $config_template $T/Kc1
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fi
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echo " --- $config_template" >> $resdir/ConfigFragment.input
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cat $config_template >> $resdir/ConfigFragment.input
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grep '#CHECK#' $config_template >> $resdir/ConfigFragment
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if test -n "$TORTURE_KCONFIG_ARG"
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then
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echo $TORTURE_KCONFIG_ARG | tr -s " " "\012" > $T/cmdline
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echo " --- --kconfig argument" >> $resdir/ConfigFragment.input
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cat $T/cmdline >> $resdir/ConfigFragment.input
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config_override.sh $T/Kc1 $T/cmdline > $T/Kc2
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# Note that "#CHECK#" is not permitted on commandline.
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else
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cp $T/Kc1 $T/Kc2
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fi
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cat $T/Kc2 >> $resdir/ConfigFragment
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base_resdir=`echo $resdir | sed -e 's/\.[0-9]\+$//'`
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if test "$base_resdir" != "$resdir" -a -f $base_resdir/bzImage -a -f $base_resdir/vmlinux
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then
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# Rerunning previous test, so use that test's kernel.
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QEMU="`identify_qemu $base_resdir/vmlinux`"
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BOOT_IMAGE="`identify_boot_image $QEMU`"
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KERNEL=$base_resdir/${BOOT_IMAGE##*/} # use the last component of ${BOOT_IMAGE}
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ln -s $base_resdir/Make*.out $resdir # for kvm-recheck.sh
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ln -s $base_resdir/.config $resdir # for kvm-recheck.sh
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# Arch-independent indicator
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touch $resdir/builtkernel
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elif kvm-build.sh $T/Kc2 $builddir $resdir
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then
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# Had to build a kernel for this test.
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QEMU="`identify_qemu $builddir/vmlinux`"
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BOOT_IMAGE="`identify_boot_image $QEMU`"
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cp $builddir/vmlinux $resdir
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cp $builddir/.config $resdir
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cp $builddir/Module.symvers $resdir > /dev/null || :
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cp $builddir/System.map $resdir > /dev/null || :
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if test -n "$BOOT_IMAGE"
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then
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cp $builddir/$BOOT_IMAGE $resdir
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KERNEL=$resdir/${BOOT_IMAGE##*/}
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# Arch-independent indicator
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touch $resdir/builtkernel
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else
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echo No identifiable boot image, not running KVM, see $resdir.
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echo Do the torture scripts know about your architecture?
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fi
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parse-build.sh $resdir/Make.out $title
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else
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# Build failed.
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cp $builddir/Make*.out $resdir
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cp $builddir/.config $resdir || :
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echo Build failed, not running KVM, see $resdir.
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if test -f $builddir.wait
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then
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mv $builddir.wait $builddir.ready
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fi
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exit 1
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fi
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if test -f $builddir.wait
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then
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mv $builddir.wait $builddir.ready
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fi
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while test -f $builddir.ready
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do
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sleep 1
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done
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seconds=$4
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qemu_args=$5
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boot_args=$6
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cd $KVM
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kstarttime=`awk 'BEGIN { print systime() }' < /dev/null`
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if test -z "$TORTURE_BUILDONLY"
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then
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echo ' ---' `date`: Starting kernel
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fi
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# Generate -smp qemu argument.
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qemu_args="-enable-kvm -nographic $qemu_args"
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cpu_count=`configNR_CPUS.sh $resdir/ConfigFragment`
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cpu_count=`configfrag_boot_cpus "$boot_args" "$config_template" "$cpu_count"`
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vcpus=`identify_qemu_vcpus`
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if test $cpu_count -gt $vcpus
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then
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echo CPU count limited from $cpu_count to $vcpus | tee -a $resdir/Warnings
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cpu_count=$vcpus
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fi
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qemu_args="`specify_qemu_cpus "$QEMU" "$qemu_args" "$cpu_count"`"
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# Generate architecture-specific and interaction-specific qemu arguments
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qemu_args="$qemu_args `identify_qemu_args "$QEMU" "$resdir/console.log"`"
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# Generate qemu -append arguments
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qemu_append="`identify_qemu_append "$QEMU"`"
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# Pull in Kconfig-fragment boot parameters
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boot_args="`configfrag_boot_params "$boot_args" "$config_template"`"
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# Generate kernel-version-specific boot parameters
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boot_args="`per_version_boot_params "$boot_args" $resdir/.config $seconds`"
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if test -n "$TORTURE_BUILDONLY"
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then
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echo Build-only run specified, boot/test omitted.
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touch $resdir/buildonly
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exit 0
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fi
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echo "NOTE: $QEMU either did not run or was interactive" > $resdir/console.log
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echo $QEMU $qemu_args -m $TORTURE_QEMU_MEM -kernel $KERNEL -append \"$qemu_append $boot_args\" > $resdir/qemu-cmd
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( $QEMU $qemu_args -m $TORTURE_QEMU_MEM -kernel $KERNEL -append "$qemu_append $boot_args"& echo $! > $resdir/qemu_pid; wait `cat $resdir/qemu_pid`; echo $? > $resdir/qemu-retval ) &
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commandcompleted=0
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sleep 10 # Give qemu's pid a chance to reach the file
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if test -s "$resdir/qemu_pid"
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then
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qemu_pid=`cat "$resdir/qemu_pid"`
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echo Monitoring qemu job at pid $qemu_pid
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else
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qemu_pid=""
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echo Monitoring qemu job at yet-as-unknown pid
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fi
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while :
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do
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if test -z "$qemu_pid" -a -s "$resdir/qemu_pid"
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then
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qemu_pid=`cat "$resdir/qemu_pid"`
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fi
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kruntime=`awk 'BEGIN { print systime() - '"$kstarttime"' }' < /dev/null`
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if test -z "$qemu_pid" || kill -0 "$qemu_pid" > /dev/null 2>&1
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then
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if test $kruntime -ge $seconds
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then
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break;
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fi
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sleep 1
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else
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commandcompleted=1
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if test $kruntime -lt $seconds
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then
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echo Completed in $kruntime vs. $seconds >> $resdir/Warnings 2>&1
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grep "^(qemu) qemu:" $resdir/kvm-test-1-run.sh.out >> $resdir/Warnings 2>&1
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killpid="`sed -n "s/^(qemu) qemu: terminating on signal [0-9]* from pid \([0-9]*\).*$/\1/p" $resdir/Warnings`"
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if test -n "$killpid"
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then
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echo "ps -fp $killpid" >> $resdir/Warnings 2>&1
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ps -fp $killpid >> $resdir/Warnings 2>&1
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fi
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else
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echo ' ---' `date`: "Kernel done"
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fi
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break
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fi
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done
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if test -z "$qemu_pid" -a -s "$resdir/qemu_pid"
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then
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qemu_pid=`cat "$resdir/qemu_pid"`
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fi
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if test $commandcompleted -eq 0 -a -n "$qemu_pid"
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then
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echo Grace period for qemu job at pid $qemu_pid
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oldline="`tail $resdir/console.log`"
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while :
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do
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kruntime=`awk 'BEGIN { print systime() - '"$kstarttime"' }' < /dev/null`
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if kill -0 $qemu_pid > /dev/null 2>&1
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then
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:
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else
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break
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fi
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must_continue=no
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newline="`tail $resdir/console.log`"
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if test "$newline" != "$oldline" && echo $newline | grep -q ' [0-9]\+us : '
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then
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must_continue=yes
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fi
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last_ts="`tail $resdir/console.log | grep '^\[ *[0-9]\+\.[0-9]\+]' | tail -1 | sed -e 's/^\[ *//' -e 's/\..*$//'`"
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if test -z "last_ts"
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then
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last_ts=0
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fi
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if test "$newline" != "$oldline" -a "$last_ts" -lt $((seconds + $TORTURE_SHUTDOWN_GRACE))
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then
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must_continue=yes
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fi
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if test $must_continue = no -a $kruntime -ge $((seconds + $TORTURE_SHUTDOWN_GRACE))
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then
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echo "!!! PID $qemu_pid hung at $kruntime vs. $seconds seconds" >> $resdir/Warnings 2>&1
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kill -KILL $qemu_pid
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break
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fi
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oldline=$newline
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sleep 10
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done
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elif test -z "$qemu_pid"
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then
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echo Unknown PID, cannot kill qemu command
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fi
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parse-console.sh $resdir/console.log $title
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