On Wed 28-08-19 09:46:21, Waiman Long wrote: > On 8/28/19 4:00 AM, Michal Hocko wrote: > > On Tue 27-08-19 16:22:38, Michal Hocko wrote: > >> Dan, isn't this something we have discussed recently? > > This was http://lkml.kernel.org/r/20190725023100.31141-3-t-fukasawa@xxxxxxxxxxxxx > > and talked about /proc/kpageflags but this is essentially the same thing > > AFAIU. I hope we get a consistent solution for both issues. > > > Yes, it is the same problem. The uninitialized page structure problem > affects all the 3 /proc/kpage{cgroup,count,flags) files. > > Toshiki's patch seems to fix it just for /proc/kpageflags, though. Yup. I was arguing that whacking a mole kinda fix is far from good. Dan had some arguments on why initializing those struct pages is a problem. The discussion had a half open end though. I hoped that Dan would try out the initialization side but I migh have misunderstood. -- Michal Hocko SUSE Labs
