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-rwxr-xr-xtools/testing/selftests/rcutorture/bin/kvm-test-1-run.sh218
1 files changed, 64 insertions, 154 deletions
diff --git a/tools/testing/selftests/rcutorture/bin/kvm-test-1-run.sh b/tools/testing/selftests/rcutorture/bin/kvm-test-1-run.sh
index 536d103ef166..420ed5ce9d32 100755
--- a/tools/testing/selftests/rcutorture/bin/kvm-test-1-run.sh
+++ b/tools/testing/selftests/rcutorture/bin/kvm-test-1-run.sh
@@ -7,15 +7,15 @@
# 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
+# Usage: kvm-test-1-run.sh config resdir seconds qemu-args boot_args_in
#
# 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
+# 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 is appended to
+# 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.
#
@@ -35,14 +35,13 @@ mkdir $T
config_template=${1}
config_dir=`echo $config_template | sed -e 's,/[^/]*$,,'`
title=`echo $config_template | sed -e 's/^.*\///'`
-builddir=${2}
-resdir=${3}
+resdir=${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
+echo ' ---' `date`: Starting build, PID $$
echo ' ---' Kconfig fragment at: $config_template >> $resdir/log
touch $resdir/ConfigFragment.input
@@ -73,7 +72,7 @@ config_override_param "--kconfig argument" KcList "$TORTURE_KCONFIG_ARG"
cp $T/KcList $resdir/ConfigFragment
base_resdir=`echo $resdir | sed -e 's/\.[0-9]\+$//'`
-if test "$base_resdir" != "$resdir" -a -f $base_resdir/bzImage -a -f $base_resdir/vmlinux
+if test "$base_resdir" != "$resdir" && test -f $base_resdir/bzImage && test -f $base_resdir/vmlinux
then
# Rerunning previous test, so use that test's kernel.
QEMU="`identify_qemu $base_resdir/vmlinux`"
@@ -83,6 +82,17 @@ then
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.
@@ -107,23 +117,23 @@ else
# Build failed.
cp .config $resdir || :
echo Build failed, not running KVM, see $resdir.
- if test -f $builddir.wait
+ if test -f $resdir/build.wait
then
- mv $builddir.wait $builddir.ready
+ mv $resdir/build.wait $resdir/build.ready
fi
exit 1
fi
-if test -f $builddir.wait
+if test -f $resdir/build.wait
then
- mv $builddir.wait $builddir.ready
+ mv $resdir/build.wait $resdir/build.ready
fi
-while test -f $builddir.ready
+while test -f $resdir/build.ready
do
sleep 1
done
-seconds=$4
-qemu_args=$5
-boot_args=$6
+seconds=$3
+qemu_args=$4
+boot_args_in=$5
if test -z "$TORTURE_BUILDONLY"
then
@@ -133,7 +143,7 @@ fi
# Generate -smp qemu argument.
qemu_args="-enable-kvm -nographic $qemu_args"
cpu_count=`configNR_CPUS.sh $resdir/ConfigFragment`
-cpu_count=`configfrag_boot_cpus "$boot_args" "$config_template" "$cpu_count"`
+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 $resdir/Warnings
@@ -149,16 +159,52 @@ qemu_args="$qemu_args `identify_qemu_args "$QEMU" "$resdir/console.log"`"
qemu_append="`identify_qemu_append "$QEMU"`"
# Pull in Kconfig-fragment boot parameters
-boot_args="`configfrag_boot_params "$boot_args" "$config_template"`"
+boot_args="`configfrag_boot_params "$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="$boot_args $TORTURE_BOOT_GDB_ARG"
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
+
echo $QEMU $qemu_args -m $TORTURE_QEMU_MEM -kernel $KERNEL -append \"$qemu_append $boot_args\" $TORTURE_QEMU_GDB_ARG > $resdir/qemu-cmd
echo "# TORTURE_SHUTDOWN_GRACE=$TORTURE_SHUTDOWN_GRACE" >> $resdir/qemu-cmd
echo "# seconds=$seconds" >> $resdir/qemu-cmd
+echo "# TORTURE_KCONFIG_GDB_ARG=\"$TORTURE_KCONFIG_GDB_ARG\"" >> $resdir/qemu-cmd
+echo "# TORTURE_JITTER_START=\"$TORTURE_JITTER_START\"" >> $resdir/qemu-cmd
+echo "# TORTURE_JITTER_STOP=\"$TORTURE_JITTER_STOP\"" >> $resdir/qemu-cmd
+echo "# TORTURE_TRUST_MAKE=\"$TORTURE_TRUST_MAKE\"; export TORTURE_TRUST_MAKE" >> $resdir/qemu-cmd
if test -n "$TORTURE_BUILDONLY"
then
@@ -167,140 +213,4 @@ then
exit 0
fi
-# Decorate qemu-cmd with redirection, backgrounding, and PID capture
-sed -e 's/$/ 2>\&1 \&/' < $resdir/qemu-cmd > $T/qemu-cmd
-echo 'echo $! > $resdir/qemu_pid' >> $T/qemu-cmd
-
-# In case qemu refuses to run...
-echo "NOTE: $QEMU either did not run or was interactive" > $resdir/console.log
-
-# Attempt to run qemu
-kstarttime=`gawk 'BEGIN { print systime() }' < /dev/null`
-( . $T/qemu-cmd; wait `cat $resdir/qemu_pid`; echo $? > $resdir/qemu-retval ) &
-commandcompleted=0
-if test -z "$TORTURE_KCONFIG_GDB_ARG"
-then
- 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 $qemu_pid
- else
- qemu_pid=""
- echo Monitoring qemu job at yet-as-unknown pid
- fi
-fi
-if test -n "$TORTURE_KCONFIG_GDB_ARG"
-then
- echo Waiting for you to attach a debug session, for example: > /dev/tty
- echo " gdb $base_resdir/vmlinux" > /dev/tty
- echo 'After symbols load and the "(gdb)" prompt appears:' > /dev/tty
- echo " target remote :1234" > /dev/tty
- echo " continue" > /dev/tty
- kstarttime=`gawk 'BEGIN { print systime() }' < /dev/null`
-fi
-while :
-do
- if test -z "$qemu_pid" -a -s "$resdir/qemu_pid"
- then
- qemu_pid=`cat "$resdir/qemu_pid"`
- fi
- kruntime=`gawk 'BEGIN { print systime() - '"$kstarttime"' }' < /dev/null`
- if test -z "$qemu_pid" || kill -0 "$qemu_pid" > /dev/null 2>&1
- then
- if test -n "$TORTURE_KCONFIG_GDB_ARG"
- then
- :
- elif test $kruntime -ge $seconds || test -f "$resdir/../STOP.1"
- 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
- # Reduce probability of PID reuse by allowing a one-minute buffer
- if test $((kruntime + 60)) -lt $seconds && test -s "$resdir/../jitter_pids"
- then
- awk < "$resdir/../jitter_pids" '
- NF > 0 {
- pidlist = pidlist " " $1;
- n++;
- }
- END {
- if (n > 0) {
- print "kill " pidlist;
- }
- }' | sh
- fi
- else
- echo ' ---' `date`: "Kernel done"
- fi
- break
- fi
-done
-if test -z "$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
- if ! test -f "$resdir/../STOP.1"
- then
- echo Grace period for qemu job at pid $qemu_pid
- fi
- oldline="`tail $resdir/console.log`"
- while :
- do
- if test -f "$resdir/../STOP.1"
- then
- echo "PID $qemu_pid killed due to run STOP.1 request" >> $resdir/Warnings 2>&1
- kill -KILL $qemu_pid
- break
- fi
- kruntime=`gawk 'BEGIN { print systime() - '"$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-console.sh $resdir/console.log $title
+kvm-test-1-run-qemu.sh $resdir