Matthew Wilcox <willy@xxxxxxxxxxxxx> writes: > On Mon, Mar 29, 2021 at 10:01:58AM +0100, Luis Henriques wrote: >> On Fri, Mar 19, 2021 at 09:02:33AM +0000, Luis Henriques wrote: >> > On Thu, Mar 18, 2021 at 11:55:43AM +0000, Matthew Wilcox wrote: >> > > On Thu, Mar 18, 2021 at 11:29:28AM +0000, Luis Henriques wrote: >> > > > On Thu, Mar 18, 2021 at 02:03:02PM +0300, Kirill A. Shutemov wrote: >> > > > > On Thu, Mar 18, 2021 at 11:59:59AM +0100, Miklos Szeredi wrote: >> > > > > > > [16247.536348] page:00000000dfe36ab1 refcount:673 mapcount:0 mapping:00000000f982a7f8 index:0x1400 pfn:0x4c65e00 >> > > > > > > [16247.536359] head:00000000dfe36ab1 order:9 compound_mapcount:0 compound_pincount:0 >> > > > > > >> > > > > > This is a compound page alright. Have no idea how it got into fuse's >> > > > > > pagecache. >> > > > > >> > > > > >> > > > > Luis, do you have CONFIG_READ_ONLY_THP_FOR_FS enabled? >> > > > >> > > > Yes, it looks like Tumbleweed kernels have that config option enabled by >> > > > default. And it this feature was introduced in 5.4 (the bug doesn't seem >> > > > to be reproducible in 5.3). >> > > >> > > Can you try adding this patch? >> > > >> > > https://git.infradead.org/users/willy/pagecache.git/commitdiff/369a4fcd78369b7a026bdef465af9669bde98ef4 >> > >> > Good news, looks like this patch fixes the issue[1]. Thanks a lot >> > everyone. Is this already queued somewhere for 5.12? Also, it would be >> > nice to have it Cc'ed for stable kernels >= 5.4. >> >> Ping. Are you planning to push this for 5.12, or is that queued for the >> 5.13 merged window? Or "none of the above"? :) > > Sorry, dropped the ball on this one. This patch is good for that point > in the patch series, but I'm not sure it works against upstream in all > cases. I need to spend some time evaluating it. Thanks for the reminder. Gentle ping :-) Any chances of getting this into 5.13? (And tagged for stable kernels.) Cheers, -- Luis
