linux-kernel - Re: [PATCH 3.18 132/134] rcu: Do RCU GP kthread self-wakeup from softirq and interrupt

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Date:   Thu, 28 Mar 2019 06:21:20 -0700
From:   "Paul E. McKenney" <paulmck@...ux.ibm.com>
To:     Greg Kroah-Hartman <gregkh@...uxfoundation.org>
Cc:     "Zhang, Jun" <jun.zhang@...el.com>, "He, Bo" <bo.he@...el.com>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "stable@...r.kernel.org" <stable@...r.kernel.org>,
        "Xiao, Jin" <jin.xiao@...el.com>,
        "Bai, Jie A" <jie.a.bai@...el.com>
Subject: Re: [PATCH 3.18 132/134] rcu: Do RCU GP kthread self-wakeup from
 softirq and interrupt

On Thu, Mar 28, 2019 at 06:28:26AM +0100, Greg Kroah-Hartman wrote:
> On Thu, Mar 28, 2019 at 01:36:12AM +0000, Zhang, Jun wrote:
> > Hello, Paul
> > 
> > Yes, I only use original V3.18.136 to test. Because system run very slowly, I give up.
> > 
> > Device: NUC (made in 2017)
> > OS:        ubuntu 16.04
> > Kernel: V3.18.136 (come from https://kernel.ubuntu.com/~kernel-ppa/mainline/v3.18.136/) 
> > System can boot, but run very slowly, and couldn't connect the network.
> > This make me not to work with terminal, because system very slowly. 
> > So I don’t use V3.18.136+patch to test.
> 
> Please do not worry about 3.18.y if it is any problem, I only keep it
> alive for a few users and if they have not reported issues yet, it is
> fine.  Please do not do any extra work for this kernel tree at all, it
> is just too old :)

Very good.  ;-)

>From what I can see, if 3.18.y works for them, then 3.18.y+patch
should also work for them.

							Thanx, Paul