> On Mar 5, 2020, at 11:42 PM, Alex Shi <alex.shi@xxxxxxxxxxxxxxxxx> wrote: > > > > 在 2020/3/6 下午12:17, Hugh Dickins 写道: >> On Thu, 5 Mar 2020, Qian Cai wrote: >>>> On Mar 5, 2020, at 10:38 PM, Matthew Wilcox <willy@xxxxxxxxxxxxx> wrote: >>>> >>>> On Thu, Mar 05, 2020 at 10:32:18PM -0500, Qian Cai wrote: >>>>>> On Mar 5, 2020, at 9:50 PM, akpm@xxxxxxxxxxxxxxxxxxxx wrote: >>>>>> The patch titled >>>>>> Subject: mm/vmscan: remove unnecessary lruvec adding >>>>>> has been removed from the -mm tree. Its filename was >>>>>> mm-vmscan-remove-unnecessary-lruvec-adding.patch >>>>>> >>>>>> This patch was dropped because it had testing failures >>>>> Andrew, do you have more information about this failure? I hit a bug >>>>> here under memory pressure and am wondering if this is related >>>>> which might save me some time digging… >> Very likely related. >> > > Hi all, > > Apologize for the trouble! > And Many thanks for you all for the report! > Obviously, I missed memory stress testing which I should do. Apologize again! > > Qian Cai, > Which test case are you using? Could you share the reproduce steps for me? LTP oom01 in a tight loop with swap, # i=0; while :; do echo $((i++)); oom01; sleep 5; done > > Hugh, > Many thanks for help! I will seek some memory stress case and waiting for your case. > > > Thank you all! > Alex