Re: [RFC] mm/damon/damo: saving damon sysfs configuration

[SJ Park <sj@kernel.org>]

On Thu,  8 Oct 2026 21:44:19 +0800 Liew Rui Yan <aethernet65535@gmail.com> wrote:

> On Thu, 08 Oct 2026 05:32:31 -0700 SJ Park <sj@kernel.org> wrote:
> 
> > Hi Liew,
> > 
> > On Thu,  8 Oct 2026 20:09:05 +0800 Liew Rui Yan <aethernet65535@gmail.com> wrote:
> > 
> > > Hi SJ,
> > > 
> > > Just a reminder, I think you might have missed the question I asked.
> > 
> > Could you please clarify what is the question that is not yet answered?
> 
> It seems I forgot to ask the question, my apologies.

No worry!

> 
> I would like to ask: after reviewing the reproduction, do you still
> think this is a real issue?  If so, I will start working on a fix.

I'm not good at reading the diff in your previous reply.  It makes me difficult
to understand what the issue is.  So I tried the commands on my system.

'''
$ sudo ./damo start
$ sudo ./damo args damon > damo_args_damon.json
$ sudo ./damo report damon --json > damo_report_damon.json
$ sudo ./damo stop
$ sudo ./damo start --kdamonds damo_args_damon.json
$ sudo ./damo report damon --json > damo_report_damon_aftr.json
$ diff -u damo_report_damon.json damo_report_damon_aftr.json
--- damo_report_damon.json      2026-10-08 07:56:04.979178016 -0700
+++ damo_report_damon_aftr.json 2026-10-08 07:56:27.717941609 -0700
@@ -1,7 +1,7 @@
 [
     {
         "state": "on",
-        "pid": "46402",
+        "pid": "46449",
         "refresh_ms": 0,
         "contexts": [
             {
'''

And still it is unclear what is the problem.  Could I ask your elaboration?


Thanks,
SJ

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