From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Date: Tue, 4 Jul 2017 10:55:37 +0200 From: Greg KH To: Vlastimil Babka Cc: stable , Johannes Weiner , Minchan Kim , Michal Hocko , linux-mm , LKML , Mel Gorman Subject: Re: [PATCH stable-only] mm: fix classzone_idx underflow in shrink_zones() Message-ID: <20170704085537.GA20372@kroah.com> References: MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Sender: owner-linux-mm@kvack.org List-ID: On Tue, Jul 04, 2017 at 10:45:43AM +0200, Vlastimil Babka wrote: > Hi, > > I realize this is against the standard stable policy, but I see no other > way, because the mainline accidental fix is part of 34+ patch reclaim > rework, that would be absurd to try to backport into stable. The fix is > a one-liner though. > > The bug affects at least 4.4.y, and likely also older stable trees that > backported commit 7bf52fb891b6, which itself was a fix for 3.19 commit > 6b4f7799c6a5. You could revert the 7bf52fb891b6 backport, but then 32bit > with highmem might suffer from OOM or thrashing. I need a bunch of acks from developers in this area before I can take this patch :) thanks, greg k-h -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@kvack.org. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: email@kvack.org