From: Thomas Gleixner <tglx@linutronix.de>
To: Tejun Heo <tj@kernel.org>
Cc: Michal Hocko <mhocko@kernel.org>, Jiri Slaby <jslaby@suse.cz>,
Petr Mladek <pmladek@suse.com>, Jan Kara <jack@suse.cz>,
Ben Hutchings <ben@decadent.org.uk>,
Sasha Levin <sasha.levin@oracle.com>, Shaohua Li <shli@fb.com>,
LKML <linux-kernel@vger.kernel.org>,
stable@vger.kernel.org, Daniel Bilik <daniel.bilik@neosystem.cz>
Subject: Re: Crashes with 874bbfe600a6 in 3.18.25
Date: Wed, 3 Feb 2016 20:05:57 +0100 (CET) [thread overview]
Message-ID: <alpine.DEB.2.11.1602032002380.25254@nanos> (raw)
In-Reply-To: <20160203190159.GM14091@mtj.duckdns.org>
On Wed, 3 Feb 2016, Tejun Heo wrote:
> On Wed, Feb 03, 2016 at 07:46:11PM +0100, Thomas Gleixner wrote:
> > > > So I think 874bbfe600a6 is really bogus. It should be reverted. We
> > > > already have a proper fix for vmstat 176bed1de5bf ("vmstat: explicitly
> > > > schedule per-cpu work on the CPU we need it to run on"). This which
> > > > should be used for the stable trees as a replacement.
> > >
> > > It's not bogus. We can't flip a property that has been guaranteed
> > > without any provision for verification. Why do you think vmstat blow
> > > up in the first place? vmstat would be the canary case as it runs
> > > frequently on all systems. It's exactly the sign that we can't break
> > > this guarantee willy-nilly.
> >
> > You're in complete failure denial mode once again.
>
> Well, you're in an unnecessary escalation mode as usual. Was the
> attitude really necessary? Chill out and read the thread again.
> Michal is saying the dwork->cpu assignment was bogus and I was
> refuting that.
Right, but at the same time you could have admitted, that the current state is
buggy and needs a sanity check in unbound_pwq_by_node().
> Michal brought it up here but there's a different thread where Mike
> reported NUMA_NO_NODE issue and I already posted the fix.
>
> http://lkml.kernel.org/g/20160203185425.GK14091@mtj.duckdns.org
5 minute ago w/o cc'ing the people who participated in that discussion.
Thanks,
tglx
next prev parent reply other threads:[~2016-02-03 19:07 UTC|newest]
Thread overview: 57+ messages / expand[flat|nested] mbox.gz Atom feed top
2016-01-20 21:19 Crashes with 874bbfe600a6 in 3.18.25 Jan Kara
2016-01-20 21:39 ` Shaohua Li
2016-01-21 9:52 ` Jan Kara
2016-01-21 13:29 ` Sasha Levin
2016-01-22 1:10 ` Sasha Levin
2016-01-22 16:09 ` Tejun Heo
2016-01-23 2:20 ` Ben Hutchings
2016-01-23 16:11 ` Thomas Gleixner
2016-01-26 9:34 ` Jan Kara
2016-01-26 9:49 ` Thomas Gleixner
2016-01-26 11:14 ` Petr Mladek
2016-01-26 13:09 ` Thomas Gleixner
2016-02-03 9:35 ` Jiri Slaby
2016-02-03 10:41 ` Thomas Gleixner
2016-02-03 12:28 ` Michal Hocko
2016-02-03 16:24 ` Tejun Heo
2016-02-03 16:48 ` Michal Hocko
2016-02-03 16:59 ` Tejun Heo
2016-02-04 6:37 ` Michal Hocko
2016-02-04 7:40 ` Michal Hocko
2016-02-03 17:01 ` Mike Galbraith
2016-02-03 17:06 ` Tejun Heo
2016-02-03 17:13 ` Mike Galbraith
2016-02-03 17:15 ` Tejun Heo
2016-02-04 2:00 ` Mike Galbraith
2016-02-05 16:49 ` Tejun Heo
2016-02-05 20:47 ` Mike Galbraith
2016-02-05 20:54 ` Tejun Heo
2016-02-05 20:59 ` Mike Galbraith
2016-02-05 21:06 ` Tejun Heo
2016-02-06 13:07 ` Henrique de Moraes Holschuh
2016-02-07 5:19 ` Mike Galbraith
2016-02-07 5:59 ` Mike Galbraith
2016-02-09 15:31 ` Mike Galbraith
2016-02-09 16:39 ` Linus Torvalds
2016-02-09 16:50 ` Tejun Heo
2016-02-09 17:04 ` Mike Galbraith
2016-02-09 17:54 ` Tejun Heo
2016-02-09 17:56 ` Mike Galbraith
2016-02-09 18:02 ` Mike Galbraith
2016-02-09 18:27 ` Tejun Heo
2016-02-09 17:04 ` Linus Torvalds
2016-02-09 17:51 ` Tejun Heo
2016-02-09 18:06 ` Linus Torvalds
2016-02-04 10:04 ` Mike Galbraith
2016-02-04 10:46 ` Thomas Gleixner
2016-02-04 11:07 ` Mike Galbraith
2016-02-04 11:20 ` Jan Kara
2016-02-04 16:39 ` Daniel Bilik
2016-02-05 2:40 ` Mike Galbraith
2016-02-05 8:11 ` Daniel Bilik
2016-02-05 8:33 ` Mike Galbraith
2016-02-03 18:46 ` Thomas Gleixner
2016-02-03 19:01 ` Tejun Heo
2016-02-03 19:05 ` Thomas Gleixner [this message]
2016-02-03 19:15 ` Tejun Heo
2016-02-05 5:44 ` Mike Galbraith
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