At the moment barebox can't correctly handle ext4 filesystem volume
greater than 4 GiB.
This patchseries fixes the problem by adaption of U-Boot commits.
How to reproduce the problem:
$ git clone https://git.pengutronix.de/git/barebox
$ cd barebox
barebox$ dd if=/dev/zero bs=128M count=40 of=5G.img
barebox$ /sbin/mkfs.ext4 -F 5G.img
barebox$ mkdir mnt
barebox$ sudo mount 5G.img mnt/
barebox$ sudo mkdir mnt/testdir
barebox$ sudo touch mnt/testdir/testfile
barebox$ ls mnt/testdir/testfile -l
-rw-r--r-- 1 root root 0 Mar 20 14:53 mnt/testdir/testfile
barebox$ sudo umount mnt/
barebox$ make sandbox_defconfig
...
barebox$ make -j3 -s
...
barebox$ ./barebox -i 5G.img
...
barebox@barebox sandbox:/ mount /dev/fd0 /mnt/
ext4 ext40: EXT2 rev 1, inode_size 256
barebox@barebox sandbox:/ ls /mnt/testdir/testfile
ls: /mnt/testdir/testfile: No such file or directory
barebox@barebox sandbox:/ ls /mnt/ -l
drwxrwxrwx 0 .
drwxrwxrwx 0 ..
drwx------ 16384 lost+found
?--------- 0 testdir
On the other hand there is no problem with volumes
less than 4 GiB:
barebox$ dd if=/dev/zero bs=128M count=24 of=3G.img
barebox$ /sbin/mkfs.ext4 -F 3G.img
barebox$ sudo mount 3G.img mnt/
barebox$ sudo mkdir mnt/testdir
barebox$ sudo touch mnt/testdir/testfile
barebox$ ls mnt/testdir/testfile -l
-rw-r--r-- 1 root root 0 Mar 20 15:05 mnt/testdir/testfile
barebox$ sudo umount mnt/
barebox$ ./barebox -i 3G.img
...
barebox@barebox sandbox:/ mount /dev/fd0 /mnt/
ext4 ext40: EXT2 rev 1, inode_size 256
barebox@barebox sandbox:/ ls /mnt/testdir/testfile
/mnt/testdir/testfile
barebox@barebox sandbox:/ ls /mnt/ -l
drwxrwxrwx 0 .
drwxrwxrwx 0 ..
drwx------ 16384 lost+found
drwxr-xr-x 4096 testdir
Antony Pavlov (7):
ext4: change structure fields to __le/__be types
ext4: use kernel names for byte swaps
ext4: drop unused and misdefined INODE_SIZE_FILESYSTEM macro
ext4: fix wrong usage of le32_to_cpu()
ext4: Update ext2/3/4 superblock, group descriptor and inode
structures
ext4: determine group descriptor size for 64bit feature
ext4: Use correct descriptor size when reading the block group
descriptor
fs/ext4/ext4_common.c | 83 +++++++++++++----------
fs/ext4/ext4fs.c | 2 +-
fs/ext4/ext4fs.h | 3 +
fs/ext4/ext_barebox.c | 10 +--
fs/ext4/ext_common.h | 184 ++++++++++++++++++++++++++++++--------------------
5 files changed, 168 insertions(+), 114 deletions(-)
--
2.11.0
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