linux-kernel - Re: [PATCH V2] kernel/watchdog: fix spurious hard lockups

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Message-ID: <20170629163603.GO23705@tassilo.jf.intel.com>
Date:   Thu, 29 Jun 2017 09:36:03 -0700
From:   Andi Kleen <ak@...ux.intel.com>
To:     Don Zickus <dzickus@...hat.com>
Cc:     "Liang, Kan" <kan.liang@...el.com>,
        Thomas Gleixner <tglx@...utronix.de>,
        "linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
        "mingo@...nel.org" <mingo@...nel.org>,
        "akpm@...ux-foundation.org" <akpm@...ux-foundation.org>,
        "babu.moger@...cle.com" <babu.moger@...cle.com>,
        "atomlin@...hat.com" <atomlin@...hat.com>,
        "prarit@...hat.com" <prarit@...hat.com>,
        "torvalds@...ux-foundation.org" <torvalds@...ux-foundation.org>,
        "peterz@...radead.org" <peterz@...radead.org>,
        "eranian@...gle.com" <eranian@...gle.com>,
        "acme@...hat.com" <acme@...hat.com>,
        "stable@...r.kernel.org" <stable@...r.kernel.org>
Subject: Re: [PATCH V2] kernel/watchdog: fix spurious hard lockups

> > Thomas' patch to modulate the frequency seemed reasonable to me.
> > It made the NMI watchdog depend on accurate ktime, but that's probably ok.
> 
> Ok, did Kan finish testing this patch (with the small fix on top)?

Kan doesn't have the specific hardware to test it. We've been waiting
for another team to do the testing. I'll ping them.

-Andi