On Tue, 2021-01-05 at 11:42 -0800, Shakeel Butt wrote: > On Tue, Jan 5, 2021 at 11:30 AM Qian Cai <qcai@xxxxxxxxxx> wrote: > > On Thu, 2020-11-05 at 16:55 +0800, Alex Shi wrote: > > > This version rebase on next/master 20201104, with much of Johannes's > > > Acks and some changes according to Johannes comments. And add a new patch > > > v21-0006-mm-rmap-stop-store-reordering-issue-on-page-mapp.patch to support > > > v21-0007. > > > > > > This patchset followed 2 memcg VM_WARN_ON_ONCE_PAGE patches which were > > > added to -mm tree yesterday. > > > > > > Many thanks for line by line review by Hugh Dickins, Alexander Duyck and > > > Johannes Weiner. > > > > Given the troublesome history of this patchset, and had been put into linux- > > next > > recently, as well as it touched both THP and mlock. Is it a good idea to > > suspect > > this patchset introducing some races and a spontaneous crash with some mlock > > memory presume? > > This has already been merged into the linus tree. Were you able to get > a similar crash on the latest upstream kernel as well? No, I seldom test the mainline those days. Before the vacations, I have tested linux-next up to something like 12/10 which did not include this patchset IIRC and never saw any crash like this. I am still trying to figure out how to reproduce it fast, so I can try a revert to confirm.
