Re: [RFC v2 0/5] md/raid1: introduce a new sync action to repair badblocks

On Tue, Feb 03, 2026 at 04:08:23PM +0800, Zheng Qixing wrote:
> Hi,
> 
> 在 2026/2/3 15:31, Christoph Hellwig 写道:
> > Just curious, but what kind of devices do you see that have
> > permanent bad blocks at a fixed location that are not fixed by
> > rewriting the sector?
> 
> The bad_blocks entries record sectors where I/O failed, which
> indicates that the device-internal remapping did not succeed
> at that time.
> 
> `rectify` does not assume a permanently bad or fixed LBA. Its
> purpose is to trigger an additional rewrite, giving the underlying
> device (e.g. FTL or firmware) another opportunity to perform its
> own remapping.

Well, what devices do you see where writes fail, but rewrites
fix them?