[U-Boot] [PATCH V5 1/2] ext4fs ls load support

[Tom Rini]

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 at 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!

-- 
Tom