From: Henrique de Moraes Holschuh <hmh@hmh.eng.br>
To: Jean Delvare <khali@linux-fr.org>
Cc: Pavel Machek <pavel@ucw.cz>,
Matthew Garrett <mjg59@srcf.ucam.org>,
Chuck Ebbert <cebbert@redhat.com>,
Rudolf Marek <r.marek@assembler.cz>,
linux-acpi@vger.kernel.org,
linux-kernel <linux-kernel@vger.kernel.org>,
lm-sensors@lm-sensors.org
Subject: Re: [lm-sensors] Could the k8temp driver be interfering with ACPI?
Date: Fri, 2 Mar 2007 18:22:28 -0300 [thread overview]
Message-ID: <20070302212228.GC11786@khazad-dum.debian.net> (raw)
In-Reply-To: <20070302220052.f93f3976.khali@linux-fr.org>
On Fri, 02 Mar 2007, Jean Delvare wrote:
> I like the idea, it should work as long as we are guaranteed that all
> the hwmon device accesses happen in the AML code? I'm not familiar with
> ACPI, so you tell me.
Some fubar machines do it in SMM mode, and the AML code just reads memory
regions that were updated by the SMBIOS. Or, if one is lucky, the AML
triggers the SMI (ThinkPads do this, for example -- but I am not sure that's
the only way a ThinkPad will cause a SMI), so it could be made to run
protected by the lock.
--
"One disk to rule them all, One disk to find them. One disk to bring
them all and in the darkness grind them. In the Land of Redmond
where the shadows lie." -- The Silicon Valley Tarot
Henrique Holschuh
WARNING: multiple messages have this Message-ID (diff)
From: hmh@hmh.eng.br (Henrique de Moraes Holschuh)
To: Jean Delvare <khali@linux-fr.org>
Cc: Pavel Machek <pavel@ucw.cz>,
Matthew Garrett <mjg59@srcf.ucam.org>,
Chuck Ebbert <cebbert@redhat.com>,
Rudolf Marek <r.marek@assembler.cz>,
linux-acpi@vger.kernel.org,
linux-kernel <linux-kernel@vger.kernel.org>,
lm-sensors@lm-sensors.org
Subject: [lm-sensors] Could the k8temp driver be interfering with ACPI?
Date: Fri, 02 Mar 2007 21:22:28 +0000 [thread overview]
Message-ID: <20070302212228.GC11786@khazad-dum.debian.net> (raw)
In-Reply-To: <20070302220052.f93f3976.khali@linux-fr.org>
On Fri, 02 Mar 2007, Jean Delvare wrote:
> I like the idea, it should work as long as we are guaranteed that all
> the hwmon device accesses happen in the AML code? I'm not familiar with
> ACPI, so you tell me.
Some fubar machines do it in SMM mode, and the AML code just reads memory
regions that were updated by the SMBIOS. Or, if one is lucky, the AML
triggers the SMI (ThinkPads do this, for example -- but I am not sure that's
the only way a ThinkPad will cause a SMI), so it could be made to run
protected by the lock.
--
"One disk to rule them all, One disk to find them. One disk to bring
them all and in the darkness grind them. In the Land of Redmond
where the shadows lie." -- The Silicon Valley Tarot
Henrique Holschuh
next prev parent reply other threads:[~2007-03-02 21:22 UTC|newest]
Thread overview: 220+ messages / expand[flat|nested] mbox.gz Atom feed top
2007-02-16 17:31 Could the k8temp driver be interfering with ACPI? Chuck Ebbert
2007-02-16 17:31 ` [lm-sensors] " Chuck Ebbert
2007-02-16 17:57 ` Len Brown
2007-02-16 17:57 ` [lm-sensors] " Len Brown
2007-02-16 18:14 ` Chuck Ebbert
2007-02-16 18:14 ` [lm-sensors] " Chuck Ebbert
2007-02-16 19:59 ` Andi Kleen
2007-02-16 19:59 ` [lm-sensors] " Andi Kleen
2007-02-16 19:31 ` Chuck Ebbert
2007-02-16 19:31 ` [lm-sensors] " Chuck Ebbert
2007-02-18 17:32 ` Jean Delvare
2007-02-18 17:32 ` Jean Delvare
2007-02-18 23:22 ` Andi Kleen
2007-02-18 23:22 ` Andi Kleen
2007-02-17 10:49 ` Rudolf Marek
2007-02-17 10:49 ` [lm-sensors] " Rudolf Marek
2007-02-17 10:49 ` Rudolf Marek
2007-02-17 18:14 ` Chuck Ebbert
2007-02-17 18:14 ` Chuck Ebbert
2007-02-18 17:38 ` Jean Delvare
2007-02-18 17:38 ` Jean Delvare
2007-02-20 15:18 ` Matthew Garrett
2007-02-20 15:18 ` Matthew Garrett
2007-02-20 15:33 ` Luca Tettamanti
2007-02-20 15:33 ` Luca Tettamanti
2007-02-21 14:59 ` Jean Delvare
2007-02-21 14:59 ` Jean Delvare
2007-02-21 15:07 ` Jean Delvare
2007-02-21 15:07 ` Jean Delvare
2007-02-28 21:38 ` Pavel Machek
2007-02-28 21:38 ` Pavel Machek
2007-03-01 14:26 ` Jean Delvare
2007-03-01 14:26 ` [lm-sensors] " Jean Delvare
2007-03-01 14:26 ` Jean Delvare
2007-03-01 17:48 ` Dave Jones
2007-03-01 17:48 ` Dave Jones
2007-03-02 11:27 ` Jean Delvare
2007-03-02 11:27 ` Jean Delvare
2007-03-02 11:31 ` Pavel Machek
2007-03-02 11:31 ` Pavel Machek
2007-03-02 13:37 ` Jean Delvare
2007-03-02 13:37 ` Jean Delvare
2007-03-02 13:47 ` Henrique de Moraes Holschuh
2007-03-02 13:47 ` Henrique de Moraes Holschuh
2007-03-02 13:57 ` Pavel Machek
2007-03-02 13:57 ` Pavel Machek
2007-03-03 6:44 ` Jean Delvare
2007-03-03 6:44 ` Jean Delvare
2007-03-02 11:40 ` Pavel Machek
2007-03-02 11:40 ` Pavel Machek
2007-03-02 11:47 ` Matthew Garrett
2007-03-02 11:47 ` Matthew Garrett
2007-03-02 13:58 ` Pavel Machek
2007-03-02 13:58 ` Pavel Machek
2007-03-02 21:00 ` Jean Delvare
2007-03-02 21:00 ` Jean Delvare
2007-03-02 21:22 ` Henrique de Moraes Holschuh [this message]
2007-03-02 21:22 ` Henrique de Moraes Holschuh
2007-04-01 15:39 ` Pavel Machek
2007-04-01 15:39 ` Pavel Machek
2007-04-02 15:48 ` Jean Delvare
2007-04-02 15:48 ` [lm-sensors] " Jean Delvare
2007-04-02 19:22 ` Dave Jones
2007-04-02 19:22 ` [lm-sensors] " Dave Jones
2007-04-03 5:49 ` Jean Delvare
2007-04-03 5:49 ` [lm-sensors] " Jean Delvare
2007-04-02 20:55 ` Moore, Robert
2007-04-02 20:55 ` [lm-sensors] " Moore, Robert
2007-04-02 20:55 ` Moore, Robert
2007-04-03 7:21 ` Jean Delvare
2007-04-03 7:21 ` [lm-sensors] " Jean Delvare
2007-04-03 7:21 ` Jean Delvare
2007-04-04 21:35 ` Moore, Robert
2007-04-04 21:35 ` [lm-sensors] " Moore, Robert
2007-04-04 21:35 ` Moore, Robert
2007-03-02 14:10 ` [lm-sensors] " Jean Delvare
2007-03-02 14:10 ` Jean Delvare
2007-03-02 14:18 ` Matthew Garrett
2007-03-02 14:18 ` Matthew Garrett
2007-03-02 21:04 ` Jean Delvare
2007-03-02 21:04 ` Jean Delvare
2007-03-02 21:12 ` Matthew Garrett
2007-03-02 21:12 ` Matthew Garrett
2007-03-03 9:53 ` Jean Delvare
2007-03-03 9:53 ` Jean Delvare
2007-03-03 15:47 ` David Hubbard
2007-03-03 15:47 ` David Hubbard
2007-03-03 15:50 ` Matthew Garrett
2007-03-03 15:50 ` Matthew Garrett
2007-03-03 17:08 ` Rudolf Marek
2007-03-03 17:08 ` Rudolf Marek
2007-03-04 17:29 ` Rudolf Marek
2007-03-04 17:29 ` Rudolf Marek
2007-03-05 21:16 ` Jean Delvare
2007-03-05 21:16 ` Jean Delvare
2007-03-05 21:35 ` David Hubbard
2007-03-05 21:35 ` David Hubbard
2007-03-06 15:10 ` Jean Delvare
2007-03-06 15:10 ` Jean Delvare
2007-03-04 10:54 ` Jean Delvare
2007-03-04 10:54 ` Jean Delvare
2007-03-05 22:25 ` Pavel Machek
2007-03-05 22:25 ` Pavel Machek
2007-03-06 7:55 ` Benny Amorsen
2007-03-06 7:55 ` Benny Amorsen
2007-03-06 15:26 ` Jean Delvare
2007-03-06 15:26 ` Jean Delvare
2007-03-06 20:07 ` Stefan Monnier
2007-03-06 20:07 ` Stefan Monnier
2007-03-06 20:07 ` Stefan Monnier
2007-03-06 21:20 ` Pavel Machek
2007-03-06 21:20 ` Pavel Machek
2007-03-06 21:25 ` Moore, Robert
2007-03-06 21:25 ` Moore, Robert
2007-03-06 21:25 ` Moore, Robert
2007-03-18 19:36 ` richardvoigt
2007-03-18 19:36 ` richardvoigt at gmail.com
2007-03-19 7:08 ` Jean Delvare
2007-03-19 7:08 ` Jean Delvare
2007-03-02 22:07 ` Moore, Robert
2007-03-02 22:07 ` Moore, Robert
2007-03-02 22:07 ` Moore, Robert
2007-03-09 7:18 ` Pavel Machek
2007-03-09 7:18 ` Pavel Machek
2007-03-09 10:24 ` Jean Delvare
2007-03-09 10:24 ` Jean Delvare
2007-03-09 10:39 ` Alexey Starikovskiy
2007-03-09 10:39 ` Alexey Starikovskiy
2007-03-09 11:21 ` Pavel Machek
2007-03-09 11:21 ` Pavel Machek
2007-03-09 17:23 ` Jean Delvare
2007-03-09 17:23 ` Jean Delvare
2007-03-09 17:35 ` Alexey Starikovskiy
2007-03-09 17:35 ` Alexey Starikovskiy
2007-03-09 21:03 ` Moore, Robert
2007-03-09 21:03 ` Moore, Robert
2007-03-09 21:03 ` Moore, Robert
2007-03-09 20:56 ` Moore, Robert
2007-03-09 20:56 ` Moore, Robert
2007-03-09 20:56 ` Moore, Robert
2007-03-02 14:22 ` Pavel Machek
2007-03-02 14:22 ` Pavel Machek
2007-03-02 14:03 ` Jean Delvare
2007-03-02 14:03 ` Jean Delvare
2007-03-02 14:24 ` Pavel Machek
2007-03-02 14:24 ` Pavel Machek
2007-03-02 14:57 ` Matthew Garrett
2007-03-02 14:57 ` Matthew Garrett
2007-03-02 21:41 ` Jean Delvare
2007-03-02 21:41 ` Jean Delvare
2007-03-02 21:46 ` Matthew Garrett
2007-03-02 21:46 ` Matthew Garrett
2007-03-06 21:28 ` Jean Delvare
2007-03-06 21:28 ` Jean Delvare
2007-04-13 18:18 ` Bjorn Helgaas
2007-04-13 18:18 ` Bjorn Helgaas
2007-04-13 20:07 ` Pavel Machek
2007-04-13 20:07 ` Pavel Machek
2007-04-13 20:59 ` Bjorn Helgaas
2007-04-13 20:59 ` Bjorn Helgaas
2007-04-15 9:41 ` Jean Delvare
2007-04-15 9:41 ` Jean Delvare
2007-04-15 20:31 ` Bjorn Helgaas
2007-04-15 20:31 ` Bjorn Helgaas
2007-04-15 20:59 ` Luca Tettamanti
2007-04-15 20:59 ` Luca Tettamanti
2007-04-16 0:57 ` Bjorn Helgaas
2007-04-16 0:57 ` Bjorn Helgaas
2007-04-16 21:14 ` Luca Tettamanti
2007-04-16 21:14 ` Luca Tettamanti
2007-04-16 22:28 ` Bjorn Helgaas
2007-04-16 22:28 ` Bjorn Helgaas
2007-04-17 23:50 ` Luca Tettamanti
2007-04-17 23:50 ` Luca Tettamanti
2007-04-22 16:55 ` Luca Tettamanti
2007-04-22 16:55 ` Luca Tettamanti
2007-04-17 10:03 ` Jean Delvare
2007-04-17 10:03 ` Jean Delvare
2007-02-18 22:43 ` Rudolf Marek
2007-02-18 22:43 ` Rudolf Marek
2007-02-20 15:08 ` Chuck Ebbert
2007-02-20 15:08 ` Chuck Ebbert
2007-02-20 19:11 ` Dave Jones
2007-02-20 19:11 ` Dave Jones
2007-02-21 16:17 ` Jean Delvare
2007-02-21 16:17 ` Jean Delvare
2007-02-21 17:37 ` Dave Jones
2007-02-21 17:37 ` Dave Jones
2007-02-21 20:19 ` Dave Jones
2007-02-21 20:19 ` Dave Jones
2007-02-22 16:37 ` Jean Delvare
2007-02-22 16:37 ` Jean Delvare
2007-02-23 7:13 ` Hans de Goede
2007-02-23 7:13 ` [lm-sensors] " Hans de Goede
2007-02-23 7:13 ` Hans de Goede
2007-02-23 7:47 ` Jean Delvare
2007-02-23 7:47 ` Jean Delvare
2007-02-21 14:54 ` Jean Delvare
2007-02-21 14:54 ` Jean Delvare
2007-02-21 16:03 ` Chuck Ebbert
2007-02-21 16:03 ` Chuck Ebbert
2007-02-21 16:22 ` Jean Delvare
2007-02-21 16:22 ` Jean Delvare
2007-02-23 8:08 ` Hans de Goede
2007-02-26 17:24 ` Jean Delvare
2007-02-26 19:03 ` Hans de Goede
2007-02-27 8:45 ` Jean Delvare
[not found] <7PvLN-1cj-3@gated-at.bofh.it>
[not found] ` <7TEGV-6Jy-39@gated-at.bofh.it>
[not found] ` <7TUBX-6TN-5@gated-at.bofh.it>
[not found] ` <7UeqX-4QO-17@gated-at.bofh.it>
[not found] ` <7UeqZ-4QO-27@gated-at.bofh.it>
[not found] ` <7UgM5-np-1@gated-at.bofh.it>
[not found] ` <7UgM8-np-11@gated-at.bofh.it>
[not found] ` <7UnaS-2xP-9@gated-at.bofh.it>
[not found] ` <7UnkC-2JB-9@gated-at.bofh.it>
[not found] ` <7Uzcd-49u-3@gated-at.bofh.it>
[not found] ` <7UEEN-4xi-3@gated-at.bofh.it>
2007-03-05 13:56 ` Bodo Eggert
2007-03-05 13:56 ` Bodo Eggert
2007-03-05 13:56 ` Bodo Eggert
2007-03-06 15:19 ` Jean Delvare
2007-03-06 15:19 ` Jean Delvare
2007-03-06 20:40 ` Bodo Eggert
2007-03-06 20:40 ` Bodo Eggert
2007-03-07 9:17 ` Jean Delvare
2007-03-07 9:17 ` Jean Delvare
2007-03-07 9:36 ` Pavel Machek
2007-03-07 9:36 ` Pavel Machek
2007-03-07 17:09 ` Bodo Eggert
2007-03-07 17:09 ` Bodo Eggert
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