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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.
set -eu
# Backing directory
DIR=$(mktemp -d /tmp/fsstress.XXX)
# Mountpoint
MNT="$DIR.mnt"
# fsstress binary
FSSTRESS=~/src/xfstests/ltp/fsstress
if [ ! -x $FSSTRESS ]
then
echo "fsstress binary not found, adjust FSSTRESS=$FSSTRESS"
exit 1
fi
# Setup
fusermount -u -z $MNT &> /dev/null || true
mkdir -p $DIR $MNT
rm -Rf $DIR/*
rm -Rf $MNT/*
# FS-specific compile and mount
MYNAME=$(basename $0)
if [ $MYNAME = fsstress-loopback.bash ]; then
echo "Recompile go-fuse loopback"
cd $GOPATH/src/github.com/hanwen/go-fuse/example/loopback
go build && go install
$GOPATH/bin/loopback -l $MNT $DIR &
elif [ $MYNAME = fsstress-gocryptfs.bash ]; then
echo "Recompile gocryptfs"
cd $GOPATH/src/github.com/rfjakob/gocryptfs
go build && go install
$GOPATH/bin/gocryptfs -q -init -extpass "echo test" -scryptn=10 $DIR
$GOPATH/bin/gocryptfs -q -extpass "echo test" -nosyslog $DIR $MNT
else
echo Unknown mode: $MYNAME
exit 1
fi
echo -n "Waiting for mount: "
sleep 0.5
while ! grep "$MNT fuse" /proc/self/mounts > /dev/null
do
sleep 1
echo -n x
done
echo
# Cleanup trap
trap "cd /; fusermount -u -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
mkdir $MNT/fsstress.2
echo -n " fsstress.2 "
$FSSTRESS -p 20 -r -m 8 -n 1000 -d $MNT/fsstress.2
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
echo " rm"
rm -R $MNT/*
let N=$N+1
done
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