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@att.com
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