NFS data corruption on 3.4

[Manuel Lauss <manuel.lauss@googlemail.com>]

Hello,

I'm seeing an NFS data corruption problem on 3.4-rcX kernels:
I copy the rootfs (~8 GB of data) from the DB1200 board using
NFSv3 over to another machine, and a tiny fraction of files
(~10 out of >300k) are corrupted on the target; interestingly it's
always the same ones.

In the case of /usr/bin/dbus-daemon, which is 464144 bytes in size,
bytes ranging from offset 36865 (so 32768 + 1x 4k page + 1) to 65535
are garbage, every time.

I haven't seen this with my x86/x64 machines, and also not with 3.3 or
earlier versions.

Does anyone have an idea?

Thanks!
        Manuel Lauss