Re: Places where the kernel modifies itself (.text) during runtime

Hi Andrew... On Thu, Sep 6, 2012 at 2:56 AM, Andrew Case <atcuno@gmail.com> wrote:

So far I have identified:

1) smp_locks 2) .alt_instructions - although from writing a script to parse the alt_instr structures, it seems these may not affect .text, any clarification on this would be greatly appreciated. 3) dynamic ftracing (related to mcount)

4) I also see where the paravirt instructions (PVOP_CALL4) seems to compile as absolute call instructions, but then become relative calls at runtime.

maybe also kprobe and dynamic printk -- regards, Mulyadi Santosa Freelance Linux trainer and consultant blog: the-hydra.blogspot.com training: mulyaditraining.blogspot.com