#!/bin/bash # SPDX-License-Identifier: GPL-2.0+ # # 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 resdir seconds qemu-args boot_args_in # # qemu-args defaults to "-enable-kvm -display none -no-reboot", along # with arguments specifying the number of CPUs # and other options generated from the underlying # CPU architecture. # boot_args_in defaults to value returned by the per_version_boot_params # shell function. # # Anything you specify for either qemu-args or boot_args_in 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. # # Copyright (C) IBM Corporation, 2011 # # Authors: Paul E. McKenney <paulmck@linux.ibm.com>
config_template=${1}
config_dir=`echo $config_template | sed -e 's,/[^/]*$,,'`
title=`echo $config_template | sed -e 's/^.*\///'`
resdir=${2} 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 echo' ---' `date`: Starting build, PID $$ echo' ---' Kconfig fragment at: $config_template >> $resdir/log
touch $resdir/ConfigFragment.input
# Combine additional Kconfig options into an existing set such that # newer options win. The first argument is the Kconfig source ID, the # second the to-be-updated file within $T, and the third and final the # list of additional Kconfig options. Note that a $2.tmp file is # created when doing the update.
config_override_param () { if test -n "$3" then echo $3 | sed -e 's/^ *//' -e 's/ *$//' | tr -s " ""\012" > $T/Kconfig_args echo" --- $1" >> $resdir/ConfigFragment.input cat $T/Kconfig_args >> $resdir/ConfigFragment.input
config_override.sh $T/$2 $T/Kconfig_args > $T/$2.tmp
mv $T/$2.tmp $T/$2 fi
}
base_resdir=`echo $resdir | sed -e 's/\.[0-9]\+$//'` if test "$base_resdir" != "$resdir" && (test -f $base_resdir/bzImage || test -f $base_resdir/Image) && test -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 # Arch-independent indicator
touch $resdir/builtkernel elif test "$base_resdir" != "$resdir" then # Rerunning previous test for which build failed
ln -s $base_resdir/Make*.out $resdir # for kvm-recheck.sh
ln -s $base_resdir/.config $resdir # for kvm-recheck.sh echo Initial build failed, not running KVM, see $resdir. if test -f $resdir/build.wait then
mv $resdir/build.wait $resdir/build.ready fi
exit 1 elif kvm-build.sh $T/KcList $resdir then # Had to build a kernel for this test.
QEMU="`identify_qemu vmlinux`"
BOOT_IMAGE="`identify_boot_image $QEMU`" cp vmlinux $resdir cp .config $resdir cp Module.symvers $resdir > /dev/null || : cp System.map $resdir > /dev/null || : if test -n "$BOOT_IMAGE" then cp $BOOT_IMAGE $resdir
KERNEL=$resdir/${BOOT_IMAGE##*/} # Arch-independent indicator
touch $resdir/builtkernel else echo No identifiable boot image, not running KVM, see $resdir. echoDo the torture scripts know about your architecture? fi
parse-build.sh $resdir/Make.out $title else # Build failed. cp .config $resdir || : echo Build failed, not running KVM, see $resdir. if test -f $resdir/build.wait then
mv $resdir/build.wait $resdir/build.ready fi
exit 1 fi if test -f $resdir/build.wait then
mv $resdir/build.wait $resdir/build.ready fi while test -f $resdir/build.ready do
sleep 1 done
seconds=$3
qemu_args=$4
boot_args_in=$5
if test -z "$TORTURE_BUILDONLY" then echo' ---' `date`: Starting kernel fi
# Generate -smp qemu argument.
qemu_args="-enable-kvm -display none -no-reboot $qemu_args"
cpu_count=`configNR_CPUS.sh $resdir/ConfigFragment`
cpu_count=`configfrag_boot_cpus "$boot_args_in""$config_template""$cpu_count"` if test "$cpu_count" -gt "$TORTURE_ALLOTED_CPUS" then echo CPU count limited from $cpu_count to $TORTURE_ALLOTED_CPUS | tee -a $resdir/Warnings
cpu_count=$TORTURE_ALLOTED_CPUS fi
qemu_args="`specify_qemu_cpus "$QEMU" "$qemu_args" "$cpu_count"`"
qemu_args="`specify_qemu_net "$qemu_args"`"
# Pull in Kconfig-fragment boot parameters
boot_args="`configfrag_boot_params "$boot_args_in" "$config_template"`" # Generate kernel-version-specific boot parameters
boot_args="`per_version_boot_params "$boot_args" $resdir/.config $seconds`" if test -n "$TORTURE_BOOT_GDB_ARG" then
boot_args="$TORTURE_BOOT_GDB_ARG $boot_args" fi
# Give bare-metal advice
modprobe_args="`echo $boot_args | tr -s ' ' '\012' | grep "^$TORTURE_MOD\." | sed -e "s/$TORTURE_MOD\.//g"`"
kboot_args="`echo $boot_args | tr -s ' ' '\012' | grep -v "^$TORTURE_MOD\."`"
testid_txt="`dirname $resdir`/testid.txt"
touch $resdir/bare-metal echo To run this scenario on bare metal: >> $resdir/bare-metal echo >> $resdir/bare-metal echo" 1." Set your bare-metal build tree to the state shown in this file: >> $resdir/bare-metal echo" " $testid_txt >> $resdir/bare-metal echo" 2." Update your bare-metal build tree"'"s .config based on this file: >> $resdir/bare-metal echo" " $resdir/ConfigFragment >> $resdir/bare-metal echo" 3."Make the bare-metal kernel"'"s build system aware of your .config updates: >> $resdir/bare-metal echo" " $ 'yes "" | make oldconfig' >> $resdir/bare-metal echo" 4." Build your bare-metal kernel. >> $resdir/bare-metal echo" 5." Boot your bare-metal kernel with the following parameters: >> $resdir/bare-metal echo" " $kboot_args >> $resdir/bare-metal echo" 6." Start the test with the following command: >> $resdir/bare-metal echo" " $ modprobe $TORTURE_MOD $modprobe_args >> $resdir/bare-metal echo" 7." After some time, end the test with the following command: >> $resdir/bare-metal echo" " $ rmmod $TORTURE_MOD >> $resdir/bare-metal echo" 8."Copy your bare-metal kernel"'"s .config file, overwriting this file: >> $resdir/bare-metal echo" " $resdir/.config >> $resdir/bare-metal echo" 9."Copy the console output from just before the modprobe to just after >> $resdir/bare-metal echo" " the rmmod into this file: >> $resdir/bare-metal echo" " $resdir/console.log >> $resdir/bare-metal echo"10." Check for runtime errors using the following command: >> $resdir/bare-metal echo" " $ tools/testing/selftests/rcutorture/bin/kvm-recheck.sh `dirname $resdir` >> $resdir/bare-metal echo >> $resdir/bare-metal echo Some of the above steps may be skipped if you build your bare-metal >> $resdir/bare-metal echo kernel here: `head -n 1 $testid_txt | sed -e 's/^Build directory: //'` >> $resdir/bare-metal
Die Informationen auf dieser Webseite wurden
nach bestem Wissen sorgfältig zusammengestellt. Es wird jedoch weder Vollständigkeit, noch Richtigkeit,
noch Qualität der bereit gestellten Informationen zugesichert.
Bemerkung:
Die farbliche Syntaxdarstellung und die Messung sind noch experimentell.