Mike Kravetz <mike.kravetz@xxxxxxxxxx> writes: > On 01/13/23 10:42, Huang, Ying wrote: >> Mike Kravetz <mike.kravetz@xxxxxxxxxx> writes: >> > On 01/12/23 15:17, Huang, Ying wrote: >> >> Mike Kravetz <mike.kravetz@xxxxxxxxxx> writes: >> >> > On 01/12/23 08:09, Huang, Ying wrote: >> > >> > Isolated to patch, >> > [PATCH -v2 4/9] migrate_pages: split unmap_and_move() to _unmap() and _move() >> > >> > Actually, recreated/isolated by just applying this series to v6.2-rc3 in an >> > effort to eliminate any possible noise in linux-next. >> > >> > Spent a little time looking at modifications made there, but nothing stood out. >> > Will investigate more as time allows. >> >> Thank you very much! That's really helpful. >> >> Checked that patch again, found that there's an issue about non-lru >> pages. Do you enable zram in your test system? Can you try the >> below debug patch on top of > > CONFIG_ZRAM=y > >> >> [PATCH -v2 4/9] migrate_pages: split unmap_and_move() to _unmap() and _move() >> >> The following patches in series need to be rebased for the below >> change. I will test with zram enabled too. > > A quick test with below patch on top of [PATCH -v2 4/9] (without the rest of > the series applied) makes the issue go away. Thanks! Thanks you very much! Now I can reproduce the issue with zram configured. Will send out a new version to fix the issue. Best Regards, Huang, Ying