On 2022/2/21 20:54, Oscar Salvador wrote: > On Wed, Feb 16, 2022 at 10:13:14AM +0800, Miaohe Lin wrote: >> IIUC, this could not happen when soft-offlining a pagecache page. They're either >> invalidated or migrated away and then we set PageHWPoison. >> I think this may happen on a clean pagecache page when it's isolated. So it's !PageLRU. >> And identify_page_state treats it as me_unknown because it's non reserved, slab, swapcache >> and so on ...(see error_states for details). Or am I miss anything? > > But the path you are talking about is when we do have a non-recoverable > error, so memory_failure() path. > AFAIU, Rik talks about pages with corrected errors, and that is > soft_offline(). Oh, yes, Rik talks about pages with corrected errors. My mistake. Then I really want to understand how we got there too. :) Thanks. >
