On Wed, 1 Feb 2023 02:35:55 +0900 Hyeonggon Yoo <42.hyeyoo@xxxxxxxxx> wrote: > On Wed, Feb 01, 2023 at 01:09:10AM +0900, Hyeonggon Yoo wrote: > > I've observed random list_del corruption on mm-unstable, > > where HEAD is commit d69862e693c069f4 > > ("mm/migrate: convert putback_movable_pages() to use folios"). > > > > The issue can be easily reproduced by stressing MM multiple times: > > stress-ng --bigheap 0 --timeout 300 > > > > The compiler is gcc 12.2.1 and config, dmesg are included as attachment. > > I will try to bisect but can't promise quick resolution :) > > > The first bad commits appears to be: > c203c6d5b3f0597 ("migrate_pages: batch _unmap and _move") > > the first bad commit _probably_ be earlier, but this is quite > easy to reproduce so at this point I think above is the real bad commit. Thanks. I'll disable this series for now, so it won't appear in linux-next.