Dear Tom Rini, > On 09/12/2012 03:57 PM, Rob Herring wrote: > > On 09/12/2012 05:49 PM, Tom Rini wrote: > >> 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.3080...@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! > > > > What size partition? It is also fine for me with a small 1.2GB > > partition. I only see the problem with larger partitions (most of a > > 250GB drive). > > This is a 240G partition. > > > I was under the impression that ext4 is not mountable as ext3. > > You can go ext3->"ext4"->ext3, it's only when you have fsck rebuild and > make use of extents, iirc, that it's no longer mountable as ext3.
Maybe you can pick that loop block driver from Pavel [1] and try it on sandbox target? That might ease testing etc. [1] http://patchwork.ozlabs.org/patch/182160/ Best regards, Marek Vasut _______________________________________________ U-Boot mailing list U-Boot@lists.denx.de http://lists.denx.de/mailman/listinfo/u-boot