On June 23, 2022 7:06:36 AM PDT, Dave Hansen <dave.hansen@xxxxxxxxx> wrote: >On 6/22/22 23:24, lizhe.67@xxxxxxxxxxxxx wrote: >> In our scenario, we need reserve or alloc large continous memory like >> 256M in machine which have different memory specification at just >> boot phase for a user land process. > >Just marking the memory reserved doesn't do any good by itself. There >must be some *other* kernel code to find this reserved area and make it >available to userspace. > >It seems kinda silly to add this to the kernel without also adding the >other half of the solution. Plus, we don't really even know what this >is for. Are there other, better solutions? I certainly can't offer any >because this changelog did not provide a full picture of the problem >this solves. Don't we already have a large contiguous physical memory allocator for this reason (misdesigned hardware?)
