[dm-devel] [RFC PATCH 0/2] dm crypt: Allow unaligned buffer lengths for skcipher devices

[Mikulas Patocka]

On Wed, 23 Sep 2020, Sudhakar Panneerselvam wrote:

> Could someone review this patch set, please?
> 
> Thanks
> Sudhakar

Hi

I'd like to ask - what sector size do you use in dm-crypt? Could the issue 
be fixed just by using the smallest possible 512-byte sectors?

What I/O method does qemu use? Is it direct i/o + aio? What is unaligned - 
the base address? Or length? Or the sector number? Could you use strace on 
qemu and show an example of an I/O that fails due to alignment?

Mikulas