On Tue 05-09-17 12:32:28, Anshuman Khandual wrote: > On 09/04/2017 04:52 PM, Michal Hocko wrote: > > From: Michal Hocko <mhocko@xxxxxxxx> > > > > online_mem_sections accidentally marks online only the first section in > > the given range. This is a typo which hasn't been noticed because I > > haven't tested large 2GB blocks previously. All users of > > Section sizes are normally less than 2GB. Could you please elaborate > why this never got noticed before ? Section size is 128MB which is the default block size as well. So we have one section per block. But if the amount of memory is very large (64GB - see probe_memory_block_size) then we have a 2GB memory blocks so multiple sections per block. -- Michal Hocko SUSE Labs -- To unsubscribe, send a message with 'unsubscribe linux-mm' in the body to majordomo@xxxxxxxxx. For more info on Linux MM, see: http://www.linux-mm.org/ . Don't email: <a href=mailto:"dont@xxxxxxxxx"> email@xxxxxxxxx </a>