> From: Paul E. McKenney <paulmck@xxxxxxxxxx> > Sent: Sunday, December 15, 2019 12:57 PM > To: Dexuan Cui <decui@xxxxxxxxxxxxx> > Cc: Dexuan-Linux Cui <dexuan.linux@xxxxxxxxx>; Qian Cai <cai@xxxxxx>; Joel > Fernandes (Google) <joel@xxxxxxxxxxxxxxxxx>; Tejun Heo <tj@xxxxxxxxxx>; > Josh Triplett <josh@xxxxxxxxxxxxxxxx>; Steven Rostedt <rostedt@xxxxxxxxxxx>; > rcu@xxxxxxxxxxxxxxx; Linux Kernel Mailing List <linux-kernel@xxxxxxxxxxxxxxx>; > Lili Deng <Lili.Deng@xxxxxxxxxxxxx>; Baihua Lu <Baihua.Lu@xxxxxxxxxxxxx> > Subject: Re: "rcu: React to callback overload by aggressively seeking quiescent > states" hangs on boot > > On Sun, Dec 15, 2019 at 08:40:40PM +0000, Dexuan Cui wrote: > > > From: Paul E. McKenney <paulmck@xxxxxxxxxx> > > > Sent: Sunday, December 15, 2019 12:20 PM > > > > > > This is consistent with what I saw in Qian Cai's report, FYI. So I > > > am very interested in learning whether the first patch in my reply [1] > > > helps you. > > > Thanx, Paul > > > > Hi Paul, yes, your first patch (the below) can fix the hang issue: > > > > commit e8d6182b015bdd8221164477f4ab1c307bd2fbe9 > > Author: Paul E. McKenney <paulmck@xxxxxxxxxx> > > Date: Sun Dec 15 10:59:06 2019 -0800 > > > > squash! rcu: React to callback overload by aggressively seeking > quiescent states > > Thank you! May I add your Tested-by? > Thanx, Paul Tested-by: Dexuan Cui <decui@xxxxxxxxxxxxx>
