On Thu, Sep 21, 2017 at 10:43:08AM +0200, jjDaNiMoTh wrote:

2017-09-21 9:21 GMT+02:00 Greg KH [off-list ref]:

   
    Why do you think that it requires developers to use a debugger and qemu
    to test their code?? I've never used a debugger on the kernel in all of
    my years of kernel development...



I imagined that, at least in early development phases, developers can benefit
from the use of a debugger, but it seems that I was wrong. Of course, for
newbies like me, a debugger is essential to understand flow and relations
between kernel code, and I'm happy that this solution is already in the
documentation (unfortunately, not for the version I was using, 4.13). Maybe the
patch pointed out by Saket can be backported to releases which have the
possibility to enable KALSR, such as 4.9 (LTS) and 4.13 itself (stable)?

Sure, you can request it, look at the documentation here for how to do
that:

    https://www.kernel.org/doc/html/latest/process/stable-kernel-rules.html