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From: Alex Bligh <alex@alex.org.uk>
To: Ian Campbell <ian.campbell@citrix.com>,
	Diana Crisan <dcrisan@flexiant.com>
Cc: Anthony Perard <anthony.perard@citrix.com>,
	Stefano Stabellini <stefano.stabellini@citrix.com>,
	Alex Bligh <alex@alex.org.uk>,
	xen-devel@lists.xen.org
Subject: Re: Early ACPI events prevent subsequent ACPI functionality on xen 4.3 + HVM domU
Date: Sat, 18 May 2013 10:55:56 +0100	[thread overview]
Message-ID: <71194FD00ABB7415DD6106AA@nimrod.local> (raw)
In-Reply-To: <1368812151.24012.66.camel@hastur.hellion.org.uk>

Ian,

--On 17 May 2013 18:35:51 +0100 Ian Campbell <ian.campbell@citrix.com> 
wrote:

>> We are using Xen-4.3-rc1 with dom0 running Ubuntu Precise and
>> 3.5.0-23-generic kernel, and domU running Ubuntu Precise (12.04) cloud
>> images running 3.2.0-39-virtual. We are using the xl.conf below on
>> qemu-upstream-dm and HVM and two identical sending and receiving
>> machines (hardware and software)
>>
>> If a dom-U HVM server is started with ACPI enabled, and an ACPI event
>> (such as shutdown or reboot) is sent to domU before the BIOS and/or
>> operating system in the dom-U has initialised ACPI, then all
>> subsequent ACPI events are ignored.
>
> I suppose something must be getting latched and since no one was around
> at the time to clear it no further events are possible. Not sure if this
> is a qemu or a guest issue though.

I can confirm it does not happen with KVM with the same guest, and it
happens with multiple Linux guests on Xen. Our test suite triggers it
every time.

It's a pain because if someone starts a server by accident and immediately
goes to shut it down, they have to do an ungraceful destroy rather than
a clean shutdown.

-- 
Alex Bligh

  reply	other threads:[~2013-05-18  9:55 UTC|newest]

Thread overview: 40+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
     [not found] <1052133728.8634452.1368537175372.JavaMail.root@zimbra002>
2013-05-14 13:13 ` Early ACPI events prevent subsequent ACPI functionality on xen 4.3 + HVM domU Diana Crisan
2013-05-17 17:35   ` Ian Campbell
2013-05-18  9:55     ` Alex Bligh [this message]
2013-05-21 13:39       ` George Dunlap
2013-05-21 14:16         ` George Dunlap
2013-05-21 14:20           ` Ian Campbell
2013-05-21 14:34             ` George Dunlap
2013-05-21 14:42               ` Ian Campbell
2013-05-21 16:51                 ` Dave Scott
2013-05-21 19:58                   ` Ian Campbell
2013-05-21 15:17               ` Alex Bligh
2013-05-21 15:36                 ` George Dunlap
2013-05-21 15:51                   ` George Dunlap
2013-05-21 16:22                     ` Alex Bligh
2013-05-21 16:45                     ` Konrad Rzeszutek Wilk
2013-05-21 17:48                       ` Alex Bligh
2013-05-21 19:33                         ` Konrad Rzeszutek Wilk
2013-05-21 19:46                           ` Alex Bligh
2013-05-22  9:57                           ` Ian Campbell
2013-05-22  9:21                         ` George Dunlap
2013-05-22 10:08                           ` Alex Bligh
2013-05-22 10:45                             ` Diana Crisan
2013-05-22 10:55                               ` George Dunlap
2013-05-22 11:16                                 ` Alex Bligh
2013-05-22 11:50                                   ` George Dunlap
2013-05-22 14:43                                     ` Konrad Rzeszutek Wilk
2013-11-06 16:05                                       ` Konrad Rzeszutek Wilk
2013-11-06 16:14                                         ` Ian Campbell
2013-11-06 20:16                                           ` Konrad Rzeszutek Wilk
2013-11-07 11:24                                             ` Ian Campbell
2013-11-08 14:27                                               ` Konrad Rzeszutek Wilk
2013-11-06 16:18                                         ` Jan Beulich
2013-05-21 15:16         ` Alex Bligh
2013-05-21 15:23           ` George Dunlap
2013-05-21 15:59             ` Alex Bligh
2013-05-21 16:09               ` George Dunlap
2013-05-21 16:25                 ` Alex Bligh
2013-05-21 16:48                 ` Diana Crisan
2013-05-21 17:31                 ` Sander Eikelenboom
2013-06-27 14:04                   ` George Dunlap

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