bug#12626: Bug?: dd limited to <2G read size (2G-8K) on 64 bit machine?

[Paul Eggert]

On 10/11/2012 11:39 PM, Linda Walsh wrote:
> I'm not even getting error messages if I try to do 4G @ a time

That's what dd is supposed to do.  It requests 4 GB,
the kernel gives it only 2 GB, so it goes with 2 GB.
dd has always worked that way, and POSIX requires it
to work that way.