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mcstop: add -k to kill processses using /dev/mcos* before shutdown

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Use lsof to check for processes that still open /dev/mcosX at shutdown
time.
If lsof is not installed then the check is just not done (empty PROCS
result)

If -k is not passed, print a message listing pids of users and exit
(taking bets someone will use that and sed to kill out of mcstop+release
and rerun the stop script instead of passing -k at some point)

Change-Id: Idba7486fdede4990d9885d23f8077f33839daeed
This commit is contained in:
Dominique Martinet
2019-03-14 15:43:25 +01:00
committed by Dominique Martinet
parent 21c9e57646
commit c96dfb0c68
1 changed files with 29 additions and 0 deletions
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29
arch/x86_64/tools/mcstop+release-smp-x86.sh.in
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@ -18,6 +18,23 @@ KERNDIR="@KERNDIR@"
mem="" mem=""
cpus="" cpus=""
irqbalance_used="" irqbalance_used=""
kill_in_use=""
while getopts k OPT
do
case ${OPT} in
k)
kill_in_use=1
;;
\?) exit 1
;;
esac
done
if [[ "$#" -ge "$OPTIND" ]]; then
shift $((OPTIND - 1))
echo "Extra arguments: $@" >&2
exit 1
fi
disable_irqbalance_mck() { disable_irqbalance_mck() {
if [ -f /etc/systemd/system/irqbalance_mck.service ]; then if [ -f /etc/systemd/system/irqbalance_mck.service ]; then
@ -43,6 +60,18 @@ fi
if ls /dev/mcos* 1>/dev/null 2>&1; then if ls /dev/mcos* 1>/dev/null 2>&1; then
for i in /dev/mcos*; do for i in /dev/mcos*; do
ind=`echo $i|cut -c10-`; ind=`echo $i|cut -c10-`;
# Are processes still using it?
PROCS=$(lsof -t $i 2>/dev/null)
if [[ -n "$PROCS" ]]; then
if ((kill_in_use)); then
kill -9 $PROCS
else
echo "Proesses still using $i: $PROCS" >&2
exit 1
fi
fi
# Retry when conflicting with ihkmond # Retry when conflicting with ihkmond
nretry=0 nretry=0
until ${SBINDIR}/ihkconfig 0 destroy $ind || [ $nretry -ge 4 ]; do until ${SBINDIR}/ihkconfig 0 destroy $ind || [ $nretry -ge 4 ]; do