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From: srinivas pandruvada <srinivas.pandruvada@linux.intel.com>
To: Arnd Bergmann <arnd@kernel.org>
Cc: Len Brown <len.brown@intel.com>,
	Ricardo Neri <ricardo.neri-calderon@linux.intel.com>,
	"Rafael J. Wysocki" <rafael@kernel.org>,
	Daniel Lezcano <daniel.lezcano@linaro.org>,
	Amit Kucheria <amitk@kernel.org>, Zhang Rui <rui.zhang@intel.com>,
	linux-pm@vger.kernel.org, linux-kernel@vger.kernel.org
Subject: Re: x86/mce/therm_throt incorrect THERM_STATUS_CLEAR_CORE_MASK?
Date: Thu, 02 Jun 2022 09:25:57 -0700	[thread overview]
Message-ID: <079945077b128fcc3cb470e9d52267f7ac763b7a.camel@linux.intel.com> (raw)
In-Reply-To: <CAK8P3a1mHe3TkZa443fzsPnGUP1XT3w-DN3U5KAL6NBhc2nEsw@mail.gmail.com>

On Thu, 2022-06-02 at 18:18 +0200, Arnd Bergmann wrote:
> On Thu, Jun 2, 2022 at 5:52 PM srinivas pandruvada
> <srinivas.pandruvada@linux.intel.com> wrote:
> > 
> > On Thu, 2022-06-02 at 11:19 +0200, Arnd Bergmann wrote:
> > > I have a Xeon W-2265 (family 6, model 85, stepping 7) that
> > > started
> > > constantly spewing messages from the therm_throt driver after one
> > > core overheated:
> > > 
> > I think this is a Cascade Lake system. Have you tried the latest
> > micro-
> > code?
> 
> Thanks for your quick reply. I have installed the latest microcode
> 0x5003302
> now (manually, because the version provided by the distro was still
> using
> version 0x5003102).
> 
> After that, I tried writing the value 0x2a80 from userspace, and
> that did not cause a trap, so I assume that fixed it.
> 
Thanks for reporting.
I am aware of this issue and should be fixed by microcode update.

Thanks,
Srinivas

> It's hard to be sure, as the system has only run into the broken
> state twice during its life, and now it's fine. I'll reply here if it
> ever comes back with the new microcode.
> 
> Thanks a lot!
> 
>        Arnd



  reply	other threads:[~2022-06-02 16:26 UTC|newest]

Thread overview: 8+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2022-06-02  9:19 x86/mce/therm_throt incorrect THERM_STATUS_CLEAR_CORE_MASK? Arnd Bergmann
2022-06-02 15:52 ` srinivas pandruvada
2022-06-02 16:18   ` Arnd Bergmann
2022-06-02 16:25     ` srinivas pandruvada [this message]
2022-06-02 18:53       ` Arnd Bergmann
2022-06-02 20:10         ` srinivas pandruvada
2022-06-02 20:42           ` Arnd Bergmann
2022-06-02 21:13             ` srinivas pandruvada

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