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#! /bin/sh
MODULE_DIR=/lib/modules/`uname -r`/kernel
case "$1" in
mount-unmount)
trap "umount $3; rm -f $2; rmdir $3" 0
mkdir $3
dd bs=1204k count=20 if=/dev/zero of=$2
mke2fs -F $2
tune2fs -c 0 $2
modprobe loop
while true; do mount -o loop $2 $3; umount $3; sleep 1; done
;;
bang-one)
trap "rmmod $2" 0
while true; do modprobe $2; rmmod $2; done
;;
bang-all)
while true; do
# Randomize order
find $MODULE_DIR -name '*.ko' | ( while read mod; do echo $RANDOM $mod; done ) | sort -n |
while read junk modname; do
if [ $RANDOM -gt $RANDOM ]; then
rmmod `basename $modname .ko`
else
modprobe `basename $modname .ko`
fi
done
done
;;
"")
$0 mount-unmount testfs.$$ /tmp/$$ &
$0 bang-one ext2 &
$0 bang-all &
exit 0
;;
*)
echo Unknown arg "$1"
exit 1
;;
esac
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