116 lines
3.2 KiB
Bash
116 lines
3.2 KiB
Bash
#!/bin/bash
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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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# No SMP module? Exit.
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if [ "`lsmod | grep ihk_smp_x86`" == "" ]; then exit 0; 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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if ! ${SBINDIR}/ihkconfig 0 destroy $ind; 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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# 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 ! ${SBINDIR}/ihkconfig 0 query mem > /dev/null; then
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echo "error: querying memory" >&2
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exit 1
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fi
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mem=`${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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# Remove delegator if loaded
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if [ "`lsmod | grep mcctrl`" != "" ]; then
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if ! rmmod mcctrl; 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 mcoverlay if loaded
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if [ "`lsmod | grep mcoverlay`" != "" ]; then
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if [ "`cat /proc/mounts | grep /tmp/mcos/mcos0_sys`" != "" ]; then umount -l /tmp/mcos/mcos0_sys; fi
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if [ "`cat /proc/mounts | grep /tmp/mcos/mcos0_proc`" != "" ]; then umount -l /tmp/mcos/mcos0_proc; fi
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if [ "`cat /proc/mounts | grep /tmp/mcos/linux_proc`" != "" ]; then umount -l /tmp/mcos/linux_proc; fi
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if [ "`cat /proc/mounts | grep /tmp/mcos`" != "" ]; then umount -l /tmp/mcos; fi
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if [ -e /tmp/mcos ]; then rm -rf /tmp/mcos; fi
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if ! rmmod mcoverlay; then
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echo "warning: failed to remove mcoverlay" >&2
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fi
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fi
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# Remove SMP module
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if [ "`lsmod | grep ihk_smp_x86`" != "" ]; then
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if ! rmmod ihk_smp_x86; then
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echo "error: removing ihk_smp_x86" >&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 [ "`lsmod | grep -E 'ihk\s' | awk '{print $1}'`" != "" ]; then
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if ! rmmod ihk; then
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echo "error: removing ihk" >&2
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exit 1
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fi
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fi
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# Stop mcklogd
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pkill mcklogd
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# Start irqbalance with the original settings
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if [ "`systemctl status irqbalance_mck.service 2> /dev/null |grep -E 'Active: active'`" != "" ]; then
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if ! systemctl stop irqbalance_mck.service 2>/dev/null; then
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echo "warning: failed to stop irqbalance_mck" >&2
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fi
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if ! systemctl disable irqbalance_mck.service >/dev/null 2>/dev/null; then
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echo "warning: failed to disable irqbalance_mck" >&2
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fi
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if ! etcdir=@ETCDIR@ perl -e '$etcdir=$ENV{'etcdir'}; @files = grep { -f } glob "$etcdir/proc/irq/*/smp_affinity"; foreach $file (@files) { $dest = substr($file, length($etcdir)); 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 ! 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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