I faced a similar issue using Ubuntu 13.10 (fully updated) on my notebook when copying/moving large files to my IOmega IX2-200 NAS (running its own Linux brand with kernel 2.6.31.8).
The system slows down and locks for some time. I've never experienced a fatal lock, but I had to wait for several minutes.
Copying from NAS to the notebook presents no noticeable locks or hangs.
I faced a similar issue using Ubuntu 13.10 (fully updated) on my notebook when copying/moving large files to my IOmega IX2-200 NAS (running its own Linux brand with kernel 2.6.31.8).
The system slows down and locks for some time. I've never experienced a fatal lock, but I had to wait for several minutes.
Copying from NAS to the notebook presents no noticeable locks or hangs.