On Fri 19-07-24 19:51:06, Barry Song wrote: > On Fri, Jul 19, 2024 at 7:42 PM Michal Hocko <mhocko@xxxxxxxx> wrote: [...] > > It cannot reclaim itself and it cannot sleep to wait for the memory so > > NOFAIL semantic is simply impossible. We have put a warning in place to > > this is still "right" behaviour to retry infinitely at least according > to the doc of > __GFP_NOFAIL. I do not agree that implementing busy loop in the kernel is the right practice! > I assume getting new memory by many retries is still > possibly some other processes might be reclaiming or freeing memory > then providing free memory to this one being stuck. No, I strongly disagree we should even pretend this is a supported allocation strategy. NAK to any attempt to legalize it in some form. -- Michal Hocko SUSE Labs
