On Wed, Feb 19, 2020 at 02:46:35PM -0800, Andrew Morton wrote: > > (switched to email. Please respond via emailed reply-to-all, not via the > bugzilla web interface). > > On Wed, 19 Feb 2020 21:33:32 +0000 bugzilla-daemon@xxxxxxxxxxxxxxxxxxx wrote: > > > https://bugzilla.kernel.org/show_bug.cgi?id=206569 > > > > --- Comment #1 from Denis Lisov (dennis.lissov@xxxxxxxxx) --- > > Upd. Double-checking my kernel settings I found that I've accidentally enabled > > experimental CONFIG_READ_ONLY_THP_FOR_FS - may be related to that. > > > > In my new kernel build the problem failed to reproduce (I've disabled > > CONFIG_READ_ONLY_THP_FOR_FS, CONFIG_KSM and switched from > > CONFIG_TRANSPARENT_HUGEPAGE_ALWAYS to CONFIG_TRANSPARENT_HUGEPAGE_MADVISE - > > sorry for multiple changes). > > Thanks. > > Song Liu, could you please take a look? This is a compound page ... Dennis, are you willing to apply this patch https://lore.kernel.org/linux-mm/20200211001536.1027652-12-jhubbard@xxxxxxxxxx/ and retest? It will give us more information about what's going on.