Re: [PATCH 4.19 00/29] 4.19.282-rc1 review

[Greg Kroah-Hartman]

On Wed, Oct 11, 2023 at 11:04:54AM +0200, Greg Kroah-Hartman wrote:
> On Wed, Oct 11, 2023 at 06:59:46AM +0530, Naresh Kamboju wrote:
> > Hi Steven and Greg,
> > 
> > On Thu, 27 Apr 2023 at 15:19, Naresh Kamboju <naresh.kamboju@xxxxxxxxxx> wrote:
> > >
> > > Hi Steven,
> > >
> > > On Wed, 26 Apr 2023 at 23:14, Steven Rostedt <rostedt@xxxxxxxxxxx> wrote:
> > > >
> > > > On Wed, 26 Apr 2023 17:09:45 -0400
> > > > Steven Rostedt <rostedt@xxxxxxxxxxx> wrote:
> > > >
> > > > > Now the question is, why is this triggering on 4.19 but not in latest
> > > > > mainline?
> > > >
> > > > I found it, I backported this patch and the warning goes away (at least for
> > > > me). Can you add this and see if it makes the warning go away for you too?
> > >
> > > I have applied this patch on stable-rc 4.19 branch and tested on
> > > - arm64: Juno-r2
> > >  - x86_64 device
> > >
> > > and the reported problem has been resolved.
> > >
> > > Thanks for finding a quick fix patch.
> > >
> > > >
> > > > -- Steve
> > > >
> > > > From: Peter Zijlstra <peterz@xxxxxxxxxxxxx>
> > > > Date: Fri, 7 Aug 2020 20:50:19 +0200
> > > > Subject: [PATCH] sched,idle,rcu: Push rcu_idle deeper into the idle path
> > > >
> > > > commit 1098582a0f6c4e8fd28da0a6305f9233d02c9c1d upstream.
> > 
> > Can we expect this patch to be merged into 4.19 ?
> > The reason for the question is, the reported problem is still seen on
> > stable-rc 4.19.
> 
> Ok, I'll queue it up now, I didn't realize it needed to be there, sorry.

Nope, I can't, it doesn't apply there, so I need a backported, and
TESTED version, for 5.4.y and 4.19.y if anyone wants to see it there.

thanks,

greg k-h