On Wed, Nov 19, 2025 at 09:53:28AM +0100, Christoph Hellwig wrote: > On Wed, Nov 19, 2025 at 09:43:13AM +0100, Uladzislau Rezki wrote: > > Well. LBA is fixed in my case. Just only one format which is 512B. > > > > Whereas the I/O can not be performed by using LBAs sizes. It is fixed > > and bigger. > > Then it is not an LBA. The LBA is defined as the minimum block size > you can do I/O on. Aka your device is really gravely broken. What > device is this and who is selling it? > I define UBS - underlying block size. The lower layer expects BIOs in that sizes but this is not true.
I am not allowed to disclose and answer your last question. -- Uladzislau Rezki
