libgocryptfs/tests/stress_tests/fsstress-gocryptfs.bash
Jakob Unterwurzacher af7386713c stress_tests/fsstress-gocryptfs.bash: use rm -Rf for cleanup
Apparently, kernel 5.8 now allows unprivileged "mknod /tmp/x c 0 0":

	vfs: allow unprivileged whiteout creation
	https://git.kernel.org/pub/scm/linux/kernel/git/stable/linux.git/commit/?h=v5.8.9&id=a3c751a50fe6bbe50eb7622a14b18b361804ee0c

which is why rm throws a new prompt:

	rm: remove write-protected character special file '...'?

Use rm -Rf to suppress that.
2020-09-13 14:14:23 +02:00

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#!/bin/bash
#
# Mount a go-fuse loopback filesystem in /tmp and run fsstress against it
# in an infinite loop, only exiting on errors.
#
# When called as "fsstress-gocryptfs.bash", a gocryptfs filesystem is tested
# instead.
#
# This test used to fail on older go-fuse versions after a few iterations with
# errors like this:
# "rm: cannot remove /tmp/b/fsstress.2/pd/d1XXX/f4a: No such file or directory"
#
# Nowadays it should pass an indefinite number of iterations.
if [[ -z $TMPDIR ]]; then
TMPDIR=/var/tmp
export TMPDIR
fi
set -eu
cd "$(dirname "$0")"
MYNAME=$(basename $0)
source ../fuse-unmount.bash
# fsstress binary
FSSTRESS=$HOME/fuse-xfstests/ltp/fsstress
if [ ! -x $FSSTRESS ]
then
echo "$MYNAME: fsstress binary not found at $FSSTRESS"
echo "Please clone and compile https://github.com/rfjakob/fuse-xfstests"
exit 1
fi
# Backing directory
DIR=$(mktemp -d $TMPDIR/$MYNAME.XXX)
# Mountpoint
MNT="$DIR.mnt"
mkdir $MNT
# Set the GOPATH variable to the default if it is empty
GOPATH=$(go env GOPATH)
# Clean up old mounts
for i in $(mount | cut -d" " -f3 | grep $TMPDIR/$MYNAME) ; do
fusermount -u $i
done
# FS-specific compile and mount
if [ $MYNAME = fsstress-loopback.bash ]; then
echo "Recompile go-fuse loopback"
cd $GOPATH/src/github.com/hanwen/go-fuse/example/loopback
go build -race && go install
$GOPATH/bin/loopback -q $MNT $DIR &
disown
elif [ $MYNAME = fsstress-gocryptfs.bash ]; then
echo "Recompile gocryptfs"
cd $GOPATH/src/github.com/rfjakob/gocryptfs
./build.bash
$GOPATH/bin/gocryptfs -q -init -extpass "echo test" -scryptn=10 $DIR
$GOPATH/bin/gocryptfs -q -extpass "echo test" -nosyslog $DIR $MNT
elif [ $MYNAME = fsstress-encfs.bash ]; then
# You probably want do adjust this path to your system
/home/jakob.donotbackup/encfs/build/encfs --extpass "echo test" --standard $DIR $MNT
else
echo Unknown mode: $MYNAME
exit 1
fi
sleep 0.5
echo -n "Waiting for mount: "
while ! grep "$MNT fuse" /proc/self/mounts > /dev/null
do
sleep 1
echo -n x
done
echo " ok"
# Cleanup trap
trap "kill %1 ; cd / ; fuse-unmount -z $MNT ; rm -rf $DIR $MNT" EXIT
echo "Starting fsstress loop"
N=1
while true
do
echo $N
mkdir $MNT/fsstress.1
echo -n " fsstress.1 "
$FSSTRESS -r -m 8 -n 1000 -d $MNT/fsstress.1 &
wait
mkdir $MNT/fsstress.2
echo -n " fsstress.2 "
$FSSTRESS -p 20 -r -m 8 -n 1000 -d $MNT/fsstress.2 &
wait
mkdir $MNT/fsstress.3
echo -n " fsstress.3 "
$FSSTRESS -p 4 -z -f rmdir=10 -f link=10 -f creat=10 -f mkdir=10 \
-f rename=30 -f stat=30 -f unlink=30 -f truncate=20 -m 8 \
-n 1000 -d $MNT/fsstress.3 &
wait
echo " rm"
rm -Rf $MNT/*
let N=$N+1
done