From: Len Brown <len.brown-ral2JQCrhuEAvxtiuMwx3w@public.gmane.org>
To: stefandoesinger-RbZlAiThDcE@public.gmane.org
Cc: ACPI Developers
<acpi-devel-5NWGOfrQmneRv+LV9MX5uipxlwaOVQ5f@public.gmane.org>,
Pavel Machek <pavel-AlSwsSmVLrQ@public.gmane.org>,
trenn-l3A5Bk7waGM@public.gmane.org,
seife-l3A5Bk7waGM@public.gmane.org,
Kernel Mailing List
<linux-kernel-u79uwXL29TY76Z2rM5mHXA@public.gmane.org>
Subject: Re: Re: Allow userspace do something special on overtemp
Date: 12 Aug 2004 18:53:27 -0400 [thread overview]
Message-ID: <1092351206.5021.201.camel@dhcppc4> (raw)
In-Reply-To: <200408121927.11277.stefandoesinger-RbZlAiThDcE@public.gmane.org>
On Thu, 2004-08-12 at 13:27, Stefan Dösinger wrote:
> Hi,
> Isn't this a little bit dangerous? What if acpid is not set up to
> handle this?
>
There are two levels of hardware thermal control that will
kick in -- TM1 and TM2, and if they fail the hardware will
turn itself off. Speaking for Intel processors only.
The reason is that the hardware needs to handle this case
where the OS crashes while in ACPI mode and is unable
to do any thermal control itself.
cheers,
-Len
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WARNING: multiple messages have this Message-ID (diff)
From: Len Brown <len.brown@intel.com>
To: stefandoesinger@gmx.at
Cc: ACPI Developers <acpi-devel@lists.sourceforge.net>,
Pavel Machek <pavel@suse.cz>,
trenn@suse.de, seife@suse.de,
Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: [ACPI] Re: Allow userspace do something special on overtemp
Date: 12 Aug 2004 18:53:27 -0400 [thread overview]
Message-ID: <1092351206.5021.201.camel@dhcppc4> (raw)
In-Reply-To: <200408121927.11277.stefandoesinger@gmx.at>
On Thu, 2004-08-12 at 13:27, Stefan Dösinger wrote:
> Hi,
> Isn't this a little bit dangerous? What if acpid is not set up to
> handle this?
>
There are two levels of hardware thermal control that will
kick in -- TM1 and TM2, and if they fail the hardware will
turn itself off. Speaking for Intel processors only.
The reason is that the hardware needs to handle this case
where the OS crashes while in ACPI mode and is unable
to do any thermal control itself.
cheers,
-Len
next prev parent reply other threads:[~2004-08-12 22:53 UTC|newest]
Thread overview: 25+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-08-11 8:53 Allow userspace do something special on overtemp Pavel Machek
2004-08-11 9:03 ` Arjan van de Ven
2004-08-11 9:06 ` Pavel Machek
2004-08-11 14:49 ` Len Brown
2004-08-11 14:52 ` Wichert Akkerman
2004-08-11 15:28 ` Thomas Renninger
2004-08-11 21:08 ` Kronos
2004-08-11 20:26 ` Pavel Machek
2004-08-11 9:18 ` Måns Rullgård
2004-08-11 18:22 ` Olaf Hering
[not found] ` <411A239C.8060606@blue-labs.org>
2004-08-11 20:22 ` Pavel Machek
2004-08-12 0:08 ` Dax Kelson
2004-08-12 3:29 ` Len Brown
2004-08-12 7:40 ` Pavel Machek
2004-08-12 14:28 ` Len Brown
2004-08-12 20:24 ` Pavel Machek
2004-08-12 22:51 ` Len Brown
2004-08-12 23:21 ` Pavel Machek
2004-08-12 7:35 ` Pavel Machek
2004-08-12 15:19 ` Len Brown
2004-08-12 15:16 ` Randy.Dunlap
2004-08-12 15:50 ` Stefan Seyfried
2004-08-12 17:27 ` [ACPI] " Stefan Dösinger
[not found] ` <200408121927.11277.stefandoesinger-RbZlAiThDcE@public.gmane.org>
2004-08-12 22:53 ` Len Brown [this message]
2004-08-12 22:53 ` Len Brown
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