From: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
To: Thomas Gleixner <tglx@linutronix.de>
Cc: Mike Galbraith <efault@gmx.de>,
LKML <linux-kernel@vger.kernel.org>,
Ingo Molnar <mingo@kernel.org>, Ingo Molnar <mingo@elte.hu>,
PeterZijlstra <peterz@infradead.org>,
Frederic Weisbecker <fweisbec@gmail.com>
Subject: Re: [patch] timer: Fix timers_update_migration(), and call it in tmigr_init()
Date: Mon, 1 May 2017 12:33:09 -0700 [thread overview]
Message-ID: <20170501193309.GK3956@linux.vnet.ibm.com> (raw)
In-Reply-To: <alpine.DEB.2.20.1705010953240.2316@nanos>
On Mon, May 01, 2017 at 09:54:10AM +0200, Thomas Gleixner wrote:
> On Sun, 30 Apr 2017, Paul E. McKenney wrote:
> >
> > And sadly, the splats are still there. Please see the following for
> > the relevant console output and .config files:
>
> Right. We are working on fixing the issues. I'll zap it from tip for now.
In case it helps...
I looked over the rest of the rcutorture scenarios, and it looks like
the problems occur for NO_HZ_FULL and more than two CPUs (though larger
numbers of CPUs might well just be increasing the probability of this
happening). The TEST07 scenario (which had the segfaults) also had CPU
hotplug enabled, but !NO_HZ_FULL scenarios with CPU hotplug enabled did
just fine (or at least had a much lower probability of occurrence).
Thanx, Paul
next prev parent reply other threads:[~2017-05-01 19:33 UTC|newest]
Thread overview: 26+ messages / expand[flat|nested] mbox.gz Atom feed top
2017-04-26 8:02 x86-tip tsc/tick gripage Mike Galbraith
2017-04-26 8:16 ` Mike Galbraith
2017-04-26 8:21 ` Ingo Molnar
2017-04-26 8:31 ` Mike Galbraith
2017-04-26 8:57 ` Mike Galbraith
2017-04-26 9:18 ` Mike Galbraith
2017-04-26 10:26 ` Peter Zijlstra
2017-04-26 11:39 ` Mike Galbraith
2017-04-26 12:30 ` Mike Galbraith
2017-04-26 18:13 ` Mike Galbraith
2017-04-27 5:26 ` Mike Galbraith
2017-04-29 16:06 ` [patch] timer: Fix timers_update_migration(), and call it in tmigr_init() Mike Galbraith
2017-04-29 18:06 ` Paul E. McKenney
2017-04-29 18:20 ` Mike Galbraith
2017-04-29 21:45 ` Paul E. McKenney
2017-04-30 1:21 ` Mike Galbraith
2017-04-30 3:43 ` Paul E. McKenney
2017-04-30 4:20 ` Mike Galbraith
2017-04-30 4:36 ` Paul E. McKenney
2017-04-30 22:41 ` Paul E. McKenney
2017-05-01 7:54 ` Thomas Gleixner
2017-05-01 19:33 ` Paul E. McKenney [this message]
2017-04-30 5:07 ` Mike Galbraith
2017-04-28 7:35 ` [patch] Re: x86-tip tsc/tick gripage Mike Galbraith
2017-04-28 8:45 ` Mike Galbraith
2017-04-28 14:17 ` Mike Galbraith
Reply instructions:
You may reply publicly to this message via plain-text email
using any one of the following methods:
* Save the following mbox file, import it into your mail client,
and reply-to-all from there: mbox
Avoid top-posting and favor interleaved quoting:
https://en.wikipedia.org/wiki/Posting_style#Interleaved_style
* Reply using the --to, --cc, and --in-reply-to
switches of git-send-email(1):
git send-email \
--in-reply-to=20170501193309.GK3956@linux.vnet.ibm.com \
--to=paulmck@linux.vnet.ibm.com \
--cc=efault@gmx.de \
--cc=fweisbec@gmail.com \
--cc=linux-kernel@vger.kernel.org \
--cc=mingo@elte.hu \
--cc=mingo@kernel.org \
--cc=peterz@infradead.org \
--cc=tglx@linutronix.de \
/path/to/YOUR_REPLY
https://kernel.org/pub/software/scm/git/docs/git-send-email.html
* If your mail client supports setting the In-Reply-To header
via mailto: links, try the mailto: link
Be sure your reply has a Subject: header at the top and a blank line
before the message body.
This is a public inbox, see mirroring instructions
for how to clone and mirror all data and code used for this inbox