On Wed, Sep 02, 2020 at 03:06:44PM -0700, Sagi Grimberg wrote:
> I don't have the exact bisection, the original report mentioned:
> 3d75ca0adef4 ("block: introduce multi-page bvec helpers")
>
> But I cannot explain what in that patch caused this.
That way how the multi-page bvec helpers work rely on aligned transfers,
so for the ramdisk driver this might be the root cause. OTOH we have
reports for xen block device where unaligned I/O causes corruption which
basically go back to day 0.
