Hi I wanted to use a whole HDD for loop-encryption. To prevent some types of accidents i still wanted to put a Partition-Table on the HDD with a single whole-disk-spanning partition. So i set the offset to 512 with "/dev/sd<x>" as the backing-store. But Performace fell to a crawl (relativly speaking) realative to a non-offseted loop. So i increased the offset by 512 for a few times in the hope that the phaenomenom is "curable". And with an offset of 4096 performance was the same as without an offset. As i have a IA32-System it appears to me that the offset has to be page-aligned, in case performance matters. So i suggest to put a note about that in the README. -- Real Programmers consider "what you see is what you get" to be just as bad a concept in Text Editors as it is in women. No, the Real Programmer wants a "you asked for it, you got it" text editor -- complicated, cryptic, powerful, unforgiving, dangerous. - Linux-crypto: cryptography in and on the Linux system Archive: http://mail.nl.linux.org/linux-crypto/