From: "Paul E. McKenney" <paulmck@linux.vnet.ibm.com>
To: Boris Zhmurov <bb@kernelpanic.ru>
Cc: Michal Hocko <mhocko@kernel.org>,
Paul Menzel <pmenzel@molgen.mpg.de>,
Donald Buczek <buczek@molgen.mpg.de>,
linux-mm@kvack.org
Subject: Re: INFO: rcu_sched detected stalls on CPUs/tasks with `kswapd` and `mem_cgroup_shrink_node`
Date: Mon, 28 Nov 2016 07:05:09 -0800 [thread overview]
Message-ID: <20161128150509.GG3924@linux.vnet.ibm.com> (raw)
In-Reply-To: <eba1571e-f7a8-09b3-5516-c2bc35b38a83@kernelpanic.ru>
On Mon, Nov 28, 2016 at 05:40:48PM +0300, Boris Zhmurov wrote:
> Paul E. McKenney 28/11/16 17:34:
>
>
> >> So Paul, I've dropped "mm: Prevent shrink_node_memcg() RCU CPU stall
> >> warnings" patch, and stalls got back (attached).
> >>
> >> With this patch "commit 7cebc6b63bf75db48cb19a94564c39294fd40959" from
> >> your tree stalls gone. Looks like that.
> >
> > So with only this commit and no other commit or configuration adjustment,
> > everything works? Or it the solution this commit and some other stuff?
> >
> > The reason I ask is that if just this commit does the trick, I should
> > drop the others.
>
> I'd like to ask for some more time to make sure this is it.
> Approximately 2 or 3 days.
Works for me!
Thanx, Paul
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next prev parent reply other threads:[~2016-11-28 15:05 UTC|newest]
Thread overview: 44+ messages / expand[flat|nested] mbox.gz Atom feed top
[not found] <d6981bac-8e97-b482-98c0-40949db03ca3@kernelpanic.ru>
[not found] ` <20161124133019.GE3612@linux.vnet.ibm.com>
[not found] ` <de88a72a-f861-b51f-9fb3-4265378702f1@kernelpanic.ru>
[not found] ` <20161125212000.GI31360@linux.vnet.ibm.com>
[not found] ` <20161128095825.GI14788@dhcp22.suse.cz>
[not found] ` <20161128105425.GY31360@linux.vnet.ibm.com>
[not found] ` <3a4242cb-0198-0a3b-97ae-536fb5ff83ec@kernelpanic.ru>
[not found] ` <20161128143435.GC3924@linux.vnet.ibm.com>
2016-11-28 14:40 ` INFO: rcu_sched detected stalls on CPUs/tasks with `kswapd` and `mem_cgroup_shrink_node` Boris Zhmurov
2016-11-28 15:05 ` Paul E. McKenney [this message]
2016-11-28 19:16 ` Boris Zhmurov
2016-11-29 18:59 ` Paul E. McKenney
2016-11-30 17:41 ` Boris Zhmurov
2016-11-30 17:48 ` Michal Hocko
2016-11-30 18:12 ` Boris Zhmurov
2016-11-30 18:25 ` Michal Hocko
2016-11-30 18:26 ` Boris Zhmurov
2016-12-01 18:10 ` Boris Zhmurov
2016-12-01 19:39 ` Paul E. McKenney
2016-12-02 9:37 ` Michal Hocko
2016-12-02 13:52 ` Paul E. McKenney
2016-12-02 16:39 ` Boris Zhmurov
2016-12-02 16:44 ` Paul E. McKenney
2016-12-02 17:02 ` Michal Hocko
2016-12-02 17:15 ` Paul E. McKenney
2016-11-30 19:42 ` Paul E. McKenney
[not found] <20161108183938.GD4127@linux.vnet.ibm.com>
[not found] ` <9f87f8f0-9d0f-f78f-8dca-993b09b19a69@molgen.mpg.de>
[not found] ` <20161116173036.GK3612@linux.vnet.ibm.com>
[not found] ` <20161121134130.GB18112@dhcp22.suse.cz>
[not found] ` <20161121140122.GU3612@linux.vnet.ibm.com>
[not found] ` <20161121141818.GD18112@dhcp22.suse.cz>
[not found] ` <20161121142901.GV3612@linux.vnet.ibm.com>
[not found] ` <68025f6c-6801-ab46-b0fc-a9407353d8ce@molgen.mpg.de>
[not found] ` <20161124101525.GB20668@dhcp22.suse.cz>
[not found] ` <583AA50A.9010608@molgen.mpg.de>
[not found] ` <20161128110449.GK14788@dhcp22.suse.cz>
2016-11-28 12:26 ` Paul Menzel
2016-11-30 10:28 ` Donald Buczek
2016-11-30 11:09 ` Michal Hocko
2016-11-30 11:43 ` Donald Buczek
2016-12-02 9:14 ` Donald Buczek
2016-12-06 8:32 ` Donald Buczek
2016-11-30 11:53 ` Paul E. McKenney
2016-11-30 11:54 ` Paul E. McKenney
2016-11-30 12:31 ` Paul Menzel
2016-11-30 14:31 ` Paul E. McKenney
2016-11-30 13:19 ` Michal Hocko
2016-11-30 14:29 ` Paul E. McKenney
2016-11-30 16:38 ` Peter Zijlstra
2016-11-30 17:02 ` Paul E. McKenney
2016-11-30 17:05 ` Michal Hocko
2016-11-30 17:23 ` Paul E. McKenney
2016-11-30 17:34 ` Michal Hocko
2016-11-30 17:50 ` Peter Zijlstra
2016-11-30 19:40 ` Paul E. McKenney
2016-12-01 5:30 ` Peter Zijlstra
2016-12-01 12:40 ` Paul E. McKenney
2016-12-01 16:36 ` Peter Zijlstra
2016-12-01 16:59 ` Paul E. McKenney
2016-12-01 18:09 ` Peter Zijlstra
2016-12-01 18:42 ` Paul E. McKenney
2016-12-01 18:49 ` Peter Zijlstra
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