Wojciech Kocjan:
> Sorry for the delay - I was doublechecking this on Ubuntu 12.04 and
> 13.04 - in both cases I was able to reproduce it. Also, I realized I
        :::

So it means read(2)/write(2) operates full filedata (no shortage). Hmm,
I thought this point was most suspicous.

And I tested with making /tmp into aufs, and succeeded.


> (I always ran it in a chroot since that is how I reproduced the issue
> in the first place)

Does it mean you have full-system under chroot-ed aufs? Are you using
LXC or Docker?


> Mount command used:
> mount none /mnt/aufs-test -t aufs -o dirs=/mnt/aufs-tmp:/rootfs

These branches are all ext4 (uuid df64a276-222f-410c-b464-e3c573fd6650)?


> I am also attaching a .tar.gz with proc/mounts, sys/fs/aufs and 
> sys/module/aufs

Ok.
I will try ubuntu 13.04 by myself.
But it will be next week.


J. R. Okajima

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