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

[Paul Eggert]

On 10/11/2012 08:11 PM, Linda Walsh wrote:
> I find that if I try to use a read size of > (2G-8K), I get partial read 
> errors.

My guess is that it's your kernel, or maybe your
file system, and not dd per se.  Try running 'strace'.