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From: Aubrey Li <aubrey.intel@gmail.com>
To: Vineeth Remanan Pillai <vpillai@digitalocean.com>
Cc: "Li, Aubrey" <aubrey.li@linux.intel.com>,
	"Nishanth Aravamudan" <naravamudan@digitalocean.com>,
	"Julien Desfossez" <jdesfossez@digitalocean.com>,
	"Peter Zijlstra" <peterz@infradead.org>,
	"Tim Chen" <tim.c.chen@linux.intel.com>,
	"Ingo Molnar" <mingo@kernel.org>,
	"Thomas Gleixner" <tglx@linutronix.de>,
	"Paul Turner" <pjt@google.com>,
	"Linus Torvalds" <torvalds@linux-foundation.org>,
	"Joel Fernandes (Google)" <joel@joelfernandes.org>,
	"Linux List Kernel Mailing" <linux-kernel@vger.kernel.org>,
	"Subhra Mazumdar" <subhra.mazumdar@oracle.com>,
	"Frédéric Weisbecker" <fweisbec@gmail.com>,
	"Kees Cook" <keescook@chromium.org>,
	"Greg Kerr" <kerrnel@google.com>, "Phil Auld" <pauld@redhat.com>,
	"Aaron Lu" <aaron.lwe@gmail.com>,
	"Valentin Schneider" <valentin.schneider@arm.com>,
	"Mel Gorman" <mgorman@techsingularity.net>,
	"Pawan Gupta" <pawan.kumar.gupta@linux.intel.com>,
	"Paolo Bonzini" <pbonzini@redhat.com>,
	"Joel Fernandes" <joelaf@google.com>,
	"Vineeth Pillai" <vineethrp@gmail.com>,
	"Chen Yu" <yu.c.chen@intel.com>,
	"Christian Brauner" <christian.brauner@ubuntu.com>,
	"Tim Chen" <tim.c.chen@intel.com>,
	"Paul E . McKenney" <paulmck@kernel.org>
Subject: Re: [RFC PATCH 14/16] irq: Add support for core-wide protection of IRQ and softirq
Date: Sat, 11 Jul 2020 09:33:44 +0800	[thread overview]
Message-ID: <CAERHkrtqB2cMtQZxj0vQ2AkWU+6dFUQwcSpF=Pv9XR+wt=xZ0A@mail.gmail.com> (raw)
In-Reply-To: <CANaguZArdu1Jz3SvogFSXhnqmbdKX5aAORmGMf_uc+J=UQZpJw@mail.gmail.com>

On Fri, Jul 10, 2020 at 9:36 PM Vineeth Remanan Pillai
<vpillai@digitalocean.com> wrote:
>
> Hi Aubrey,
>
> On Fri, Jul 10, 2020 at 8:19 AM Li, Aubrey <aubrey.li@linux.intel.com> wrote:
> >
> > Hi Joel/Vineeth,
> > [...]
> > The problem is gone when we reverted this patch. We are running multiple
> > uperf threads(equal to cpu number) in a cgroup with coresched enabled.
> > This is 100% reproducible on our side.
> >
> > Just wonder if anything already known before we dig into it.
> >
> Thanks for reporting this. We haven't seen any lockups like this
> in our testing yet.

This is replicable on a bare metal machine. We tried to reproduce
on a 8-cpus KVM vm but failed.

> Could you please add more information on how to reproduce this?
> Was it a simple uperf run without any options or was it running any
> specific kind of network test?

I put our scripts at here:
https://github.com/aubreyli/uperf

>
> We shall also try to reproduce this and investigate.

I'll try to see if I can narrow down the test case and grab some logs
next week.

Thanks,
-Aubrey

  reply	other threads:[~2020-07-11  1:34 UTC|newest]

Thread overview: 81+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2020-06-30 21:32 [RFC PATCH 00/16] Core scheduling v6 Vineeth Remanan Pillai
2020-06-30 21:32 ` [RFC PATCH 01/16] sched: Wrap rq::lock access Vineeth Remanan Pillai
2020-06-30 21:32 ` [RFC PATCH 02/16] sched: Introduce sched_class::pick_task() Vineeth Remanan Pillai
2020-06-30 21:32 ` [RFC PATCH 03/16] sched: Core-wide rq->lock Vineeth Remanan Pillai
2020-06-30 21:32 ` [RFC PATCH 04/16] sched/fair: Add a few assertions Vineeth Remanan Pillai
2020-06-30 21:32 ` [RFC PATCH 05/16] sched: Basic tracking of matching tasks Vineeth Remanan Pillai
2020-07-21 14:02   ` [RFC PATCH 05/16] sched: Basic tracking of matching tasks(Internet mail) benbjiang(蒋彪)
2020-06-30 21:32 ` [RFC PATCH 06/16] sched: Add core wide task selection and scheduling Vineeth Remanan Pillai
2020-07-01 23:28   ` Joel Fernandes
2020-07-02  0:54     ` Tim Chen
2020-07-02 12:57       ` Joel Fernandes
2020-07-02 13:23         ` Joel Fernandes
2020-07-05 23:44         ` Tim Chen
2020-07-03 20:21     ` Vineeth Remanan Pillai
2020-07-06 14:09       ` Joel Fernandes
2020-07-06 14:38         ` Vineeth Remanan Pillai
2020-07-06 17:37           ` Joel Fernandes
2020-06-30 21:32 ` [RFC PATCH 07/16] sched/fair: Fix forced idle sibling starvation corner case Vineeth Remanan Pillai
2020-07-21  7:35   ` [RFC PATCH 07/16] sched/fair: Fix forced idle sibling starvation corner case(Internet mail) benbjiang(蒋彪)
2020-07-22  7:20   ` benbjiang(蒋彪)
2020-06-30 21:32 ` [RFC PATCH 08/16] sched/fair: wrapper for cfs_rq->min_vruntime Vineeth Remanan Pillai
2020-06-30 21:32 ` [RFC PATCH 09/16] sched/fair: core wide cfs task priority comparison Vineeth Remanan Pillai
2020-07-22  0:23   ` [RFC PATCH 09/16] sched/fair: core wide cfs task priority comparison(Internet mail) benbjiang(蒋彪)
2020-07-24  7:14     ` Aaron Lu
2020-07-24 12:08       ` Jiang Biao
2020-06-30 21:32 ` [RFC PATCH 10/16] sched: Trivial forced-newidle balancer Vineeth Remanan Pillai
2020-07-20  4:06   ` [RFC PATCH 10/16] sched: Trivial forced-newidle balancer(Internet mail) benbjiang(蒋彪)
2020-07-20  6:06     ` Li, Aubrey
     [not found]       ` <8082F052-2F52-42D3-B396-18A35A94F26F@tencent.com>
2020-07-20  8:03         ` Li, Aubrey
2020-07-20  8:22           ` benbjiang(蒋彪)
2020-07-20 14:34   ` benbjiang(蒋彪)
2020-06-30 21:32 ` [RFC PATCH 11/16] sched: migration changes for core scheduling Vineeth Remanan Pillai
2020-07-22  8:54   ` [RFC PATCH 11/16] sched: migration changes for core scheduling(Internet mail) benbjiang(蒋彪)
2020-07-22 12:13     ` Li, Aubrey
2020-07-22 14:32       ` benbjiang(蒋彪)
2020-07-23  1:57         ` Li, Aubrey
2020-07-23  2:42           ` benbjiang(蒋彪)
2020-07-23  3:35             ` Li, Aubrey
2020-07-23  4:23               ` benbjiang(蒋彪)
2020-07-23  5:39                 ` Li, Aubrey
2020-07-23  7:47                   ` benbjiang(蒋彪)
2020-07-23  8:06                     ` Li, Aubrey
2020-07-23  8:28                       ` benbjiang(蒋彪)
2020-07-23 23:43                         ` Aubrey Li
2020-07-24  1:26                           ` benbjiang(蒋彪)
2020-07-24  2:05                             ` Li, Aubrey
2020-07-24  2:29                               ` benbjiang(蒋彪)
2020-06-30 21:32 ` [RFC PATCH 12/16] sched: cgroup tagging interface for core scheduling Vineeth Remanan Pillai
2020-06-30 21:32 ` [RFC PATCH 13/16] sched: Fix pick_next_task() race condition in " Vineeth Remanan Pillai
2020-06-30 21:32 ` [RFC PATCH 14/16] irq: Add support for core-wide protection of IRQ and softirq Vineeth Remanan Pillai
2020-07-10 12:19   ` Li, Aubrey
2020-07-10 13:21     ` Joel Fernandes
2020-07-13  2:23       ` Li, Aubrey
2020-07-13 15:58         ` Joel Fernandes
2020-07-10 13:36     ` Vineeth Remanan Pillai
2020-07-11  1:33       ` Aubrey Li [this message]
2020-07-17 23:37     ` Thomas Gleixner
2020-07-18 17:05       ` Joel Fernandes
2020-07-17 23:36   ` Thomas Gleixner
2020-07-20  3:53     ` Joel Fernandes
2020-07-20  8:20       ` Thomas Gleixner
2020-07-20 11:09       ` Vineeth Pillai
2020-06-30 21:32 ` [RFC PATCH 15/16] Documentation: Add documentation on core scheduling Vineeth Remanan Pillai
2020-06-30 21:32 ` [RFC PATCH 16/16] sched: Debug bits Vineeth Remanan Pillai
2020-07-31 16:41 ` [RFC PATCH 00/16] Core scheduling v6 Vineeth Pillai
2020-08-03  8:23 ` Li, Aubrey
2020-08-03 16:53   ` Joel Fernandes
2020-08-05  3:57     ` Li, Aubrey
2020-08-05  6:16       ` [RFC PATCH 00/16] Core scheduling v6(Internet mail) benbjiang(蒋彪)
2020-08-09 16:44       ` [RFC PATCH 00/16] Core scheduling v6 Joel Fernandes
2020-08-12  2:01         ` Li, Aubrey
2020-08-12 23:08           ` Joel Fernandes
2020-08-13  4:28             ` Li, Aubrey
2020-08-14  0:26               ` [RFC PATCH 00/16] Core scheduling v6(Internet mail) benbjiang(蒋彪)
2020-08-14  1:36                 ` Li, Aubrey
2020-08-14  4:04                   ` benbjiang(蒋彪)
2020-08-14  5:18                     ` Li, Aubrey
2020-08-14  7:54                       ` benbjiang(蒋彪)
2020-08-20 22:37               ` [RFC PATCH 00/16] Core scheduling v6 Joel Fernandes
2020-08-27  0:30 ` Alexander Graf
2020-08-27  1:20   ` Vineeth Pillai

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