On Wed, Sep 05, 2018 at 11:05:15AM +0200, Greg KH wrote: > On Wed, Sep 05, 2018 at 04:58:52AM -0400, Chas Williams wrote: > > From: Chas Williams <chas3@xxxxxxx> > > > > Commit 3c226c637b69 ("mm: numa: avoid waiting on freed migrated pages") > > was an incomplete backport of the upstream commit. It is necessary to > > always reset page_nid before attempting any early exit. > > --- > > mm/huge_memory.c | 2 +- > > 1 file changed, 1 insertion(+), 1 deletion(-) > > > > <formletter> > > This is not the correct way to submit patches for inclusion in the > stable kernel tree. Please read: > https://www.kernel.org/doc/html/latest/process/stable-kernel-rules.html > for how to do this properly. > > </formletter> This is an issue with the 4.9 tree, not mainline. The hash is incorrect but the problem appears valid. Compare: 2aa6d036b716 ("mm: numa: avoid waiting on freed migrated pages") from v4.9.36 with the upstream commit from 4.12: 3c226c637b69 ("mm: numa: avoid waiting on freed migrated pages") It is missing this diff. The original commit conflicted due to lack of commit 82b0f8c39a38 ("mm: join struct fault_env and vm_fault") in 4.9 so it wasn't a clean application, must have just gotten lost in the noise. Cheers, Nathan