On Mon, Aug 13, 2012 at 01:28:19PM -0500, Rob Herring wrote:
On 08/13/2012 06:52 AM, Wolfgang Denk wrote:
Dear Rob Herring,
In message 50244D5A.3080304@gmail.com you wrote:
I reported already that the prior version that ext4 has issues with sub-directories. I don't think that has been addressed in V5. Some directories show up fine and some don't. So it's kind of random whether u-boot can read a /boot directory. This was after full ubuntu installs. I'd guess a simple test with a couple of files and directories will not show the problem.
We really need a test case here. In my (certainly not very extensive) tests I didn't see such a problem.
Can you please describe what failed for you?
I do an ubuntu install to a single ext4 fs and then ext2ls gives this:
[snip]
The problem is in the directories with sizes of 0. It does seem to be directories with higher blkno's. Perhaps the lack of support for hash table directory entries is a problem. Just guessing here as I don't know much about ext4 structure.
I haven't been able to produce a simple example just creating a bunch of files and directories, so only the disk after an ubuntu install has the problem.
I took an Ubuntu install I had (for x86) that was on a USB drive, had been pretty extensively used, and was is ext4. I couldn't find any size 0 directories. Are you able to reproduce this problem on other hardware? Is the image in question NOT remountable as ext3 (extents is set, generated) ? My biggest concern is breakage among ext2/3 filesystems. Thanks!