2a63c962fc
Remove old build system at the same time Change-Id: Ifdffe1fcd4cfece05f036d8de6e7cb74aca65f62
138 lines
3.5 KiB
Bash
138 lines
3.5 KiB
Bash
#!/bin/bash
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# mcstop+release-smp-x86.sh.in COPYRIGHT FUJITSU LIMITED 2018
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# IHK SMP-x86 example McKernel unload script.
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# author: Balazs Gerofi <bgerofi@riken.jp>
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# Copyright (C) 2015 RIKEN AICS
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#
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# This is an example script for destroying McKernel and releasing IHK resources
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# Note that the script does no output anything unless an error occurs.
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prefix="@prefix@"
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BINDIR="@BINDIR@"
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SBINDIR="@SBINDIR@"
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ETCDIR=@ETCDIR@
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KMODDIR="@KMODDIR@"
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KERNDIR="@KERNDIR@"
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mem=""
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cpus=""
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irqbalance_used=""
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disable_irqbalance_mck() {
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if [ -f /etc/systemd/system/irqbalance_mck.service ]; then
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systemctl disable irqbalance_mck.service >/dev/null 2>/dev/null
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# Invalid .service file persists so remove it
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rm -f /etc/systemd/system/irqbalance_mck.service
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fi
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}
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# No SMP module? Exit.
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if ! grep ihk_smp_@ARCH@ /proc/modules &>/dev/null; then exit 0; fi
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if [ "`systemctl status irqbalance_mck.service 2> /dev/null |grep -E 'Active: active'`" != "" ]; then
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irqbalance_used="yes"
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if ! systemctl stop irqbalance_mck.service 2>/dev/null; then
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echo "warning: failed to stop irqbalance_mck" >&2
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fi
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disable_irqbalance_mck
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fi
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# Destroy all LWK instances
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if ls /dev/mcos* 1>/dev/null 2>&1; then
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for i in /dev/mcos*; do
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ind=`echo $i|cut -c10-`;
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# Retry when conflicting with ihkmond
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nretry=0
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until ${SBINDIR}/ihkconfig 0 destroy $ind || [ $nretry -ge 4 ]; do
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sleep 0.25
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nretry=$[ $nretry + 1 ]
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done
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if [ $nretry -eq 4 ]; then
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echo "error: destroying LWK instance $ind failed" >&2
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exit 1
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fi
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done
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fi
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# Allow ihkmond to flush kmsg buffer
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sleep 2.0
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# Query IHK-SMP resources and release them
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if ! ${SBINDIR}/ihkconfig 0 query cpu > /dev/null; then
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echo "error: querying cpus" >&2
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exit 1
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fi
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cpus=`${SBINDIR}/ihkconfig 0 query cpu`
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if [ "${cpus}" != "" ]; then
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if ! ${SBINDIR}/ihkconfig 0 release cpu $cpus > /dev/null; then
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echo "error: releasing CPUs" >&2
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exit 1
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fi
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fi
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#if ! ${SBINDIR}/ihkconfig 0 query mem > /dev/null; then
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# echo "error: querying memory" >&2
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# exit 1
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#fi
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#
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#mem=`${SBINDIR}/ihkconfig 0 query mem`
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#if [ "${mem}" != "" ]; then
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# if ! ${SBINDIR}/ihkconfig 0 release mem $mem > /dev/null; then
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# echo "error: releasing memory" >&2
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# exit 1
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# fi
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#fi
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# Release all memory
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if ! ${SBINDIR}/ihkconfig 0 release mem "all" > /dev/null; then
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echo "error: releasing memory" >&2
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exit 1
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fi
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# Remove delegator if loaded
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if grep mcctrl /proc/modules &>/dev/null; then
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if ! rmmod mcctrl 2>/dev/null; then
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echo "error: removing mcctrl" >&2
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exit 1
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fi
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fi
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# Remove SMP module
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if grep ihk_smp_@ARCH@ /proc/modules &>/dev/null; then
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if ! rmmod ihk_smp_@ARCH@ 2>/dev/null; then
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echo "error: removing ihk_smp_@ARCH@" >&2
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exit 1
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fi
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fi
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# Remove core module
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if grep -E 'ihk\s' /proc/modules &>/dev/null; then
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if ! rmmod ihk 2>/dev/null; then
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echo "error: removing ihk" >&2
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exit 1
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fi
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fi
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# Stop ihkmond
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pid=`pidof ihkmond`
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if [ "${pid}" != "" ]; then
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sudo kill -9 ${pid} > /dev/null 2> /dev/null
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fi
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# Start irqbalance with the original settings
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if [ "${irqbalance_used}" != "" ]; then
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if ! perl -e '$tmpdir="/tmp/mcreboot"; @files = grep { -f } glob "$tmpdir/proc/irq/*/smp_affinity"; foreach $file (@files) { $dest = substr($file, length($tmpdir)); if (0) {print "cp $file $dest\n";} system("cp $file $dest 2>/dev/null"); }'; then
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echo "warning: failed to restore /proc/irq/*/smp_affinity" >&2
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fi
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if [ -e /tmp/mcreboot ]; then rm -rf /tmp/mcreboot; fi
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if ! systemctl start irqbalance.service; then
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echo "warning: failed to start irqbalance" >&2;
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fi
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fi
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# Set back default swappiness
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echo 60 > /proc/sys/vm/swappiness
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