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https://github.com/linux-apfs/apfstests.git
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Su Yue
a633d252e3
Recently I found that my disk space was eaten by results/shared/032.full
after one round of xfstests running. The file was filled with binary
bytes by the command:
`mkfs -t jffs2 /dev/mapper/test-2 >> results/shared/032.full 2>&1`
Manual of mkfs.jffs2:
========================================================================
The program mkfs.jffs2 creates a JFFS2 (Second Journalling Flash
File System) file system image and writes the resulting image to the
file specified by the -o option or by default to the standard output,
unless the standard output is a terminal device in which case mkfs.jffs2
will abort. The file system image is created using the files and
directories contained in the directory specified by the option -r or
the present directory, if the -r option is not specified.
========================================================================
So the command equals to
`mkfs -t jffs2 -r xfstests-dev /dev/mapper/test-2 \
-o xfstests-dev/results/shared/032.full \
>>xfstests-dev/results/shared/032.full 2>&1`
The output image 032.full is under the directory xfstests-dev.
mkfs.jffs2 keeps reading from 032.full in page size and append bytes
to 032.full until the disk where xfstests-devel located is full.
Fix it by setting @preargs to '-r /proc/fs -o' for jffs2, now the output
is $SCRATCH_DEV. Since mkfs.jffs2 doesn't check overwrite case, just
skip overwrite attempt.
Signed-off-by: Su Yue <l@damenly.su>
Reviewed-by: Eryu Guan <guaneryu@gmail.com>
Signed-off-by: Eryu Guan <guaneryu@gmail.com>
86 lines
2.6 KiB
Bash
Executable File
86 lines
2.6 KiB
Bash
Executable File
#! /bin/bash
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# SPDX-License-Identifier: GPL-2.0
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# Copyright (c) 2000-2002 Silicon Graphics, Inc. All Rights Reserved.
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#
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# FS QA Test No. 032
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#
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# cross check mkfs detection of foreign filesystems
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#
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seq=`basename $0`
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seqres=$RESULT_DIR/$seq
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echo "QA output created by $seq"
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here=`pwd`
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tmp=/tmp/$$
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status=1 # failure is the default!
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trap "rm -f $tmp.*; exit \$status" 0 1 2 3 15
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rm -f $seqres.full
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# get standard environment, filters and checks
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. ./common/rc
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. ./common/filter
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# real QA test starts here
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_supported_fs xfs btrfs
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_require_scratch_nocheck
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_require_no_large_scratch_dev
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# mkfs.btrfs did not have overwrite detection at first
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if [ "$FSTYP" == "btrfs" ]; then
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grep -q 'force overwrite' `echo $MKFS_BTRFS_PROG | awk '{print $1}'` || \
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_notrun "Installed mkfs.btrfs does not support -f option"
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fi
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echo "Silence is golden."
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for fs in `echo ${MKFS_PROG}.* | sed -e "s:${MKFS_PROG}.::g"`
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do
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preop="" # for special input needs
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preargs="" # for any special pre-device options
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postargs="" # for any special post-device options
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# minix, msdos and vfat mkfs fails for large devices, restrict to 2000 blocks
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[ $fs = minix ] && postargs=2000
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[ $fs = msdos ] && postargs=2000
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[ $fs = vfat ] && postargs=2000
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# these folks prompt before writing
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[ $fs = jfs ] && preop="echo Y |"
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[ $fs = gfs ] && preop="echo y |" && preargs="-p lock_nolock -j 1"
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[ $fs = gfs2 ] && preop="echo y |" && preargs="-p lock_nolock -j 1"
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[ $fs = reiserfs ] && preop="echo y |" && preargs="-f"
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[ $fs = reiser4 ] && preop="echo y |" && preargs="-f"
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# cramfs mkfs requires a directory argument
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[ $fs = cramfs ] && preargs=/proc/fs
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[ $fs = ext2 ] && preargs="-F"
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[ $fs = ext3 ] && preargs="-F"
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[ $fs = ext4 ] && preargs="-F"
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[ $fs = ext4dev ] && preargs="-F"
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# jffs2 mkfs requires '-r $directory' and '-o $image'
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[ $fs = jffs2 ] && preargs="-r /proc/fs -o"
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# overwite the first few Kb - should blow away superblocks
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$here/src/devzero -n 20 $SCRATCH_DEV >/dev/null
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# create a filesystem of this type
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echo "=== Creating $fs filesystem..." >>$seqres.full
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echo " ( $preop mkfs -t $fs $preargs $SCRATCH_DEV $postargs )" >>$seqres.full
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eval $preop mkfs -t $fs $preargs $SCRATCH_DEV $postargs >>$seqres.full 2>&1
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if [ $? -eq 0 ] ; then
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# next, ensure we don't overwrite it
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# jffs2 mkfs doesn't check overwrite case
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[ $fs = jffs2 ] && continue
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echo "=== Attempting $FSTYP overwrite of $fs..." >>$seqres.full
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${MKFS_PROG} -t $FSTYP $SCRATCH_DEV >>$seqres.full 2>&1
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[ $? -eq 0 ] && echo "Failed - overwrote fs type ${fs}!"
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else
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echo "mkfs of type ${fs} failed" >>$seqres.full
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fi
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done
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# success, all done
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status=0
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exit
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