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From: Matthew Garrett <mjg59@srcf.ucam.org>
To: "H. Peter Anvin" <hpa@zytor.com>
Cc: "Li, Aubrey" <aubrey.li@linux.intel.com>,
	"H. Peter Anvin" <hpa@linux.intel.com>,
	"alan@linux.intel.com" <alan@linux.intel.com>,
	linux-kernel@vger.kernel.org, Len.Brown@intel.com,
	Adam Williamson <awilliam@redhat.com>
Subject: Re: [patch] x86: Introduce BOOT_EFI and BOOT_CF9 into the reboot sequence loop
Date: Sat, 1 Mar 2014 20:21:39 +0000	[thread overview]
Message-ID: <20140301202139.GA9759@srcf.ucam.org> (raw)
In-Reply-To: <53123DCF.7040500@zytor.com>

On Sat, Mar 01, 2014 at 12:06:39PM -0800, H. Peter Anvin wrote:

> Be careful.  This is *exactly* what I tried back in checkin
> 14d7ca5c575853664d8fe4f225a77b8df1b7de7d.  We had to back that out quite
> quickly.

It's the difference between trying it before the keyboard controller and 
trying it after the keyboard controller and ACPI. It seems that it broke 
some systems where the keyboard controller worked - if we've hit the 
keyboard controller and ACPI twice, and the system is still alive, and 
if we have standard PCI ports, it doesn't seem like poking them is 
likely to make anything actively worse.

-- 
Matthew Garrett | mjg59@srcf.ucam.org

  reply	other threads:[~2014-03-01 20:21 UTC|newest]

Thread overview: 46+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2014-02-28  4:11 [patch] x86: Introduce BOOT_EFI and BOOT_CF9 into the reboot sequence loop Li, Aubrey
2014-02-28  4:56 ` Matthew Garrett
2014-02-28  5:22   ` Li, Aubrey
2014-02-28  5:56     ` Matthew Garrett
2014-02-28  6:07       ` Li, Aubrey
2014-02-28  6:12         ` Matthew Garrett
2014-02-28  6:20           ` Li, Aubrey
2014-02-28  6:23             ` Matthew Garrett
2014-02-28  6:39               ` Li, Aubrey
2014-02-28  6:44                 ` Matthew Garrett
2014-02-28  6:54                   ` Li, Aubrey
2014-02-28 17:47                     ` H. Peter Anvin
2014-02-28 22:11                       ` Li, Aubrey
2014-02-28 22:16                         ` Adam Williamson
2014-03-01 17:10                         ` Li, Aubrey
2014-03-01 17:22                           ` Matthew Garrett
2014-03-01 17:31                             ` Li, Aubrey
2014-03-01 18:19                               ` Matthew Garrett
2014-03-01 19:01                                 ` Matthew Garrett
2014-03-02  0:15                                   ` Li, Aubrey
2014-03-01 20:06                             ` H. Peter Anvin
2014-03-01 20:21                               ` Matthew Garrett [this message]
2014-03-01 20:26                                 ` H. Peter Anvin
2014-03-02  0:26                                   ` Li, Aubrey
2014-03-02  0:33                                     ` H. Peter Anvin
2014-03-02  1:47                                       ` Li, Aubrey
2014-03-02  2:07                                         ` H. Peter Anvin
2014-03-02  2:20                                           ` Li, Aubrey
2014-03-02  2:23                                           ` Matthew Garrett
2014-03-02  2:35                                             ` H. Peter Anvin
2014-03-02 10:39                                               ` Li, Aubrey
2014-03-02 16:52                                                 ` H. Peter Anvin
2014-03-02 22:13                                                   ` Li, Aubrey
2014-03-02 22:26                                                     ` Matthew Garrett
2014-03-02 22:45                                                       ` Li, Aubrey
2014-03-02 23:11                                                         ` Matthew Garrett
2014-03-02 23:23                                                           ` Li, Aubrey
2014-03-03  0:07                                                             ` Matthew Garrett
2014-03-03  0:18                                                               ` H. Peter Anvin
2014-03-03  1:36                                                                 ` Li, Aubrey
2014-03-03  1:47                                                                   ` H. Peter Anvin
2014-03-03  1:49                                                                     ` Li, Aubrey
2014-03-03 22:11                                                                       ` Li, Aubrey
2014-03-02 23:57                                                     ` H. Peter Anvin
2014-03-05 23:39                                                 ` [tip:x86/reboot] x86, reboot: Add EFI and CF9 reboot methods into the default list tip-bot for Li, Aubrey
2014-03-05 23:45                                                 ` [tip:x86/reboot] x86, reboot: Only use CF9_COND automatically, not CF9 tip-bot for H. Peter Anvin

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