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From: Linus Torvalds <torvalds@linux-foundation.org>
To: "Liang, Kan" <kan.liang@intel.com>
Cc: Don Zickus <dzickus@redhat.com>,
	Thomas Gleixner <tglx@linutronix.de>,
	"linux-kernel@vger.kernel.org" <linux-kernel@vger.kernel.org>,
	"mingo@kernel.org" <mingo@kernel.org>,
	"akpm@linux-foundation.org" <akpm@linux-foundation.org>,
	"babu.moger@oracle.com" <babu.moger@oracle.com>,
	"atomlin@redhat.com" <atomlin@redhat.com>,
	"prarit@redhat.com" <prarit@redhat.com>,
	"peterz@infradead.org" <peterz@infradead.org>,
	"eranian@google.com" <eranian@google.com>,
	"acme@redhat.com" <acme@redhat.com>,
	"ak@linux.intel.com" <ak@linux.intel.com>,
	"stable@vger.kernel.org" <stable@vger.kernel.org>
Subject: Re: [PATCH V2] kernel/watchdog: fix spurious hard lockups
Date: Mon, 14 Aug 2017 18:28:01 -0700	[thread overview]
Message-ID: <CA+55aFwFr4tDeVH+G7QwFWV+rUdDLQTvFrPX+ZT3wOx4Ew5tMw@mail.gmail.com> (raw)
In-Reply-To: <37D7C6CF3E00A74B8858931C1DB2F07753784A2B@SHSMSX103.ccr.corp.intel.com>

On Mon, Aug 14, 2017 at 6:16 PM, Liang, Kan <kan.liang@intel.com> wrote:
>
> We have confirmed that the hardlock with "speed up the hrtimer" patch is
> actually another issue.

Good.

However:

> Tim has already proposed a patch to fix it.
> Here is his patch. https://lkml.org/lkml/2017/8/14/1000

Ugh. I hate that patch, and hope we can find a proper fix for it. But
I'll respond separately to it, and it's independent of the watchdog
issue.

                  Linus

  reply	other threads:[~2017-08-15  1:28 UTC|newest]

Thread overview: 37+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-06-21 14:41 [PATCH V2] kernel/watchdog: fix spurious hard lockups kan.liang
2017-06-21 15:12 ` Thomas Gleixner
2017-06-21 15:47   ` Liang, Kan
2017-06-21 17:40     ` Prarit Bhargava
2017-06-21 17:07   ` Andi Kleen
2017-06-21 19:59     ` Thomas Gleixner
2017-06-21 21:53 ` Thomas Gleixner
2017-06-22 15:33   ` Thomas Gleixner
2017-06-22 15:44   ` Don Zickus
2017-06-22 15:48     ` Liang, Kan
2017-06-23  8:01     ` Thomas Gleixner
2017-06-23 16:29       ` Don Zickus
2017-06-23 21:50         ` Thomas Gleixner
2017-06-26 20:19           ` Don Zickus
2017-06-26 20:30             ` Thomas Gleixner
2017-06-27 20:12             ` Don Zickus
2017-06-27 20:49               ` Liang, Kan
2017-06-27 21:09                 ` Don Zickus
2017-06-27 23:48                 ` Andi Kleen
2017-06-28 19:00                   ` Don Zickus
2017-06-28 20:14                     ` Andi Kleen
2017-06-29 15:44                       ` Don Zickus
2017-06-29 16:12                         ` Andi Kleen
2017-06-29 16:26                           ` Don Zickus
2017-06-29 16:36                             ` Andi Kleen
2017-07-17  1:24               ` Liang, Kan
2017-07-17  7:14                 ` Thomas Gleixner
2017-07-17 12:18                   ` Liang, Kan
2017-07-17 13:13                     ` Thomas Gleixner
2017-07-17 14:46                       ` Liang, Kan
2017-07-17 15:00                         ` Thomas Gleixner
2017-07-17 14:46                 ` Don Zickus
2017-08-15  1:16                   ` Liang, Kan
2017-08-15  1:28                     ` Linus Torvalds [this message]
2017-08-15  7:50                     ` Thomas Gleixner
2017-08-17 15:45                       ` Liang, Kan
2017-08-18 10:39                       ` [tip:core/urgent] kernel/watchdog: Prevent false positives with turbo modes tip-bot for Thomas Gleixner

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