Hi, Linus Zhengyu Zhang <zhezhang at redhat.com> found a kexec failure caused by below commit: commit c4004b02f8e5b9ce357a0bb1641756cc86962664 Author: Linus Torvalds <torvalds at linux-foundation.org> Date: Wed Apr 6 13:45:07 2016 -0700 x86: remove the kernel code/data/bss resources from /proc/iomem Let's see if anybody even notices. I doubt anybody uses this, and it does expose addresses that should be randomized, so let's just remove the code. It's old and traditional, and it used to be cute, but we should have removed this long ago. If it turns out anybody notices and this breaks something, we'll have to revert this, and maybe we'll end up using other approaches instead (using %pK or similar). But removing unnecessary code is always the preferred option. Noted-by: Emrah Demir <ed at abdsec.com> Signed-off-by: Linus Torvalds <torvalds at linux-foundation.org> Probably we should revert the commit and do it in other way .. Thanks Dave