From: Willy Tarreau <willy@w.ods.org>
To: Len Brown <len.brown@intel.com>
Cc: Marcelo Tosatti <marcelo.tosatti@cyclades.com.br>,
ACPI Developers <acpi-devel@lists.sourceforge.net>,
Kernel Mailing List <linux-kernel@vger.kernel.org>
Subject: Re: [BKPATCH] ACPI for 2.4
Date: Sun, 8 Feb 2004 09:20:59 +0100 [thread overview]
Message-ID: <20040208082059.GD29363@alpha.home.local> (raw)
In-Reply-To: <1076145024.8687.32.camel@dhcppc4>
Hi Len,
On Sat, Feb 07, 2004 at 04:10:24AM -0500, Len Brown wrote:
> bk pull http://linux-acpi.bkbits.net/linux-acpi-release-2.4.25
>
> the AML param fix is in 2.6 -- the others changes
> are Asus and Toshiba model specific.
I encountered something strange that I still cannot explain. I have two
machines, one athlon-based VAIO notebook and one P4-based supermicro 1U
server, which don't poweroff when I halt them or send them a Sysrq-O. At
first, I only noticed this on the VAIO so I thought that something changed
in ACPI recently, because it was OK around 2.4.21 or 2.4.22 with acpi patch
from around 09/2003, but I believe that the problem appeared when I used
2.4.23 + the acpi-20031203 patch, which is now included in 2.4.25-rc1. But
then I discovered that I can poweroff both the notebook and the 1U by a
simple "echo 5 >/proc/acpi/sleep".
So I've added printk's into acpi_power_off(), and I see that the system
doesn't return from acpi_enter_sleep_state_prep(S5), which itself hangs
on the call to acpi_evaluate_object(NULL, "\\_PTS",...). If I comment
out this line, it now goes on through the next calls, then normally leaves
acpi_enter_sleep_state_prep(), then powers off correctly. I have not tested
yet you very latest patch, but I don't think it would change anything.
Do you have any idea ? What can I provide to help in resolving this problem ?
Regards,
Willy
next prev parent reply other threads:[~2004-02-08 8:22 UTC|newest]
Thread overview: 32+ messages / expand[flat|nested] mbox.gz Atom feed top
2004-02-07 9:10 Len Brown
2004-02-08 8:20 ` Willy Tarreau [this message]
2004-02-08 9:08 ` Willy Tarreau
[not found] ` <20040214081726.GH29363@alpha.home.local>
[not found] ` <1076824106.25344.78.camel@dhcppc4>
2004-02-25 7:00 ` [RFC] ACPI power-off on P4 HT Willy Tarreau
2004-02-25 7:55 ` Len Brown
2004-02-25 16:13 ` Zwane Mwaikambo
2004-02-26 7:56 ` Gregory Finch
2004-02-26 10:57 ` Willy Tarreau
2004-02-26 12:28 ` Stian Jordet
2004-02-26 13:07 ` Willy Tarreau
2004-02-26 13:29 ` Stian Jordet
2004-02-26 13:16 ` Pavel Machek
-- strict thread matches above, loose matches on Subject: below --
2005-01-31 8:32 [BKPATCH] ACPI for 2.4 Len Brown
2004-11-23 6:34 Len Brown
2004-11-16 19:26 Len Brown
2004-11-09 8:17 Len Brown
2004-10-28 9:33 Len Brown
2004-06-18 7:32 Len Brown
2004-05-20 6:14 Len Brown
2004-05-06 22:28 Len Brown
2004-04-01 12:24 O.Sezer
2004-04-01 12:57 ` O.Sezer
2004-04-01 10:40 Len Brown
2004-03-27 0:53 Len Brown
2004-03-23 10:43 Len Brown
2004-03-14 6:01 Len Brown
2004-03-06 6:32 Len Brown
2004-02-25 10:01 Len Brown
2003-11-18 20:58 Len Brown
2003-11-20 11:16 ` Len Brown
2003-11-21 17:49 ` Willy Tarreau
2003-11-21 18:46 ` Willy Tarreau
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