linux-kernel - Re: [patch] timer: Fix timers_update_migration(), and call it in tmigr

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Message-Id: <20170430043637.GP3956@linux.vnet.ibm.com>
Date:   Sat, 29 Apr 2017 21:36:37 -0700
From:   "Paul E. McKenney" <paulmck@...ux.vnet.ibm.com>
To:     Mike Galbraith <efault@....de>
Cc:     LKML <linux-kernel@...r.kernel.org>,
        Ingo Molnar <mingo@...nel.org>, Ingo Molnar <mingo@...e.hu>,
        Thomas Gleixner <tglx@...utronix.de>,
        PeterZijlstra <peterz@...radead.org>,
        Frederic Weisbecker <fweisbec@...il.com>
Subject: Re: [patch] timer: Fix timers_update_migration(), and call it in
 tmigr_init()

On Sun, Apr 30, 2017 at 06:20:15AM +0200, Mike Galbraith wrote:
> On Sat, 2017-04-29 at 20:43 -0700, Paul E. McKenney wrote:
> > On Sun, Apr 30, 2017 at 03:21:58AM +0200, Mike Galbraith wrote:
> > > On Sat, 2017-04-29 at 14:45 -0700, Paul E. McKenney wrote:
> > > > On Sat, Apr 29, 2017 at 08:20:33PM +0200, Mike Galbraith wrote:
> > > > > On Sat, 2017-04-29 at 11:06 -0700, Paul E. McKenney wrote:
> > > > > 
> > > > > > If someone will either repost a fresh series or point me at exactly
> > > > > > the set of patches to use, I will run it through rcutorture again.
> > > > > 
> > > > > Patchlet is against x86-tip/master.today.
> > > > 
> > > > So today's (as in Saturday April 29) x86-tip/master with the following
> > > > patch applied?
> > > 
> > > Yeah.
> > 
> > OK, will fire it up once the current set of overnight tests complete.
> 
> I certainly don't want to discourage you from beating hell outta tip,
> just want to make sure you know that I'm seeing zero RCU woes, only
> late timer expiry (sharpening rocks/sticks to focus trace).

I got timer_migration splats from an earlier rcutorture run.  Please see
message-ID <20170421192853.GD3956@...ux.vnet.ibm.com> on LKML on April
21st in reply to Thomas's V2 00/10 cover letter.  So I am curious to
learn if your patches fix them.

							Thanx, Paul