On Tue 14-11-17 10:45:49, Minchan Kim wrote: [...] > Anyway, I think Wang Nan's patch is already broken. > http://lkml.kernel.org/r/%3c20171107095453.179940-1-wangn...@huawei.com%3E > > Because unmap_page_range(ie, zap_pte_range) can flush TLB forcefully > and free pages. However, the architecture code for TLB flush cannot > flush at all by wrong fullmm so other threads can write freed-page.
I am not sure I understand what you mean. How is that any different from any other explicit partial madvise call? -- Michal Hocko SUSE Labs
