Re: [PATCH 0/2] Kexec_file: Load kernel at top of system ram

[Andrew Morton]

On Thu, 22 Mar 2018 11:37:20 +0800 Baoquan He <bhe@xxxxxxxxxx> wrote:

> The current kexec_file ignores kexec_buf.top_down value when call
> arch_kexec_walk_mem() to allocate memory for loading kernel/initrd
> stuffs. This is not supposed to be what kexec_buf.top_down is used
> for.

OK, but why is this a problem?  When fixing a bug, please fully
describe the user-visible effects of that bug.  That helps others
understand the importance of the fix, whether it should be backported
into various kernels, etc.