From: Alan Cox <alan@lxorguk.ukuu.org.uk>
To: Jan Beulich <jbeulich@novell.com>
Cc: xen-devel@lists.xensource.com,
Huacai Chen <huacai.chen@intel.com>,
Keir Fraser <keir.fraser@eu.citrix.com>
Subject: Re: [patch]Add a new reboot method
Date: Thu, 29 May 2008 12:49:14 +0100 [thread overview]
Message-ID: <20080529124914.043ed6fb@core> (raw)
In-Reply-To: <483EA803.76E4.0078.0@novell.com>
> to be affected: Linux post 2.6.22 (iirc) fails to reboot my Dell Precision
> 490 correctly, I have to force it to use the CF9 method. I tried looking
> into the changes that got made in that area, but wasn't able to (spend
> enough time to) pin-point the problem so far.
You might want to boot a 32bit kernel and try acpi=off, if that does the
trick then its (another) ACPI bug and the cf9 is red herring ?
> But I also agree to you and Keir that blindly writing to a port is no good
> idea. It should at least be assured that hardware supports this.
Which takes us back to ACPI. If 0xcf9 is the correct process the ACPI
method should use it.
next prev parent reply other threads:[~2008-05-29 11:49 UTC|newest]
Thread overview: 17+ messages / expand[flat|nested] mbox.gz Atom feed top
2008-05-29 9:20 [patch]Add a new reboot method Chen, Huacai
2008-05-29 9:26 ` Keir Fraser
2008-05-29 10:26 ` Alan Cox
2008-05-29 10:56 ` Jan Beulich
2008-05-29 11:49 ` Alan Cox [this message]
2008-05-29 12:18 ` Keir Fraser
2008-05-29 12:35 ` Keir Fraser
2008-05-29 12:52 ` Chen, Huacai
2008-05-29 13:09 ` Jan Beulich
2008-05-29 13:30 ` Keir Fraser
2008-05-29 14:59 ` Alan Cox
2008-05-29 15:49 ` Keir Fraser
2008-05-29 16:01 ` Alan Cox
2008-05-29 17:21 ` Keir Fraser
2008-05-29 19:05 ` Keir Fraser
2008-05-29 14:49 ` Alan Cox
2008-05-29 15:48 ` Jan Beulich
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