WARNING - OLD ARCHIVES

This is an archived copy of the Xen.org mailing list, which we have preserved to ensure that existing links to archives are not broken. The live archive, which contains the latest emails, can be found at http://lists.xen.org/
   
 
 
Xen 
 
Home Products Support Community News
 
   
 

xen-devel

Re: [Xen-devel] Re: [PATCH] x86: fix the potential of encountering panic

To: Ingo Molnar <mingo@xxxxxxx>, Jan Beulich <jbeulich@xxxxxxxxxx>
Subject: Re: [Xen-devel] Re: [PATCH] x86: fix the potential of encountering panic "IO-APIC + timer doesn't work! ..."
From: Keir Fraser <keir.fraser@xxxxxxxxxxxxx>
Date: Fri, 12 Dec 2008 09:23:33 +0000
Cc: xen-devel@xxxxxxxxxxxxxxxxxxx
Delivery-date: Fri, 12 Dec 2008 01:23:45 -0800
Envelope-to: www-data@xxxxxxxxxxxxxxxxxxx
In-reply-to: <20081212091329.GG25106@xxxxxxx>
List-help: <mailto:xen-devel-request@lists.xensource.com?subject=help>
List-id: Xen developer discussion <xen-devel.lists.xensource.com>
List-post: <mailto:xen-devel@lists.xensource.com>
List-subscribe: <http://lists.xensource.com/mailman/listinfo/xen-devel>, <mailto:xen-devel-request@lists.xensource.com?subject=subscribe>
List-unsubscribe: <http://lists.xensource.com/mailman/listinfo/xen-devel>, <mailto:xen-devel-request@lists.xensource.com?subject=unsubscribe>
Sender: xen-devel-bounces@xxxxxxxxxxxxxxxxxxx
Thread-index: AclcO02CrMfvD7MzC0G5//hMBd0tbQ==
Thread-topic: [Xen-devel] Re: [PATCH] x86: fix the potential of encountering panic "IO-APIC + timer doesn't work! ..."
User-agent: Microsoft-Entourage/12.14.0.081024
On 12/12/2008 09:13, "Ingo Molnar" <mingo@xxxxxxx> wrote:

>>> From all I can tell, the below reproduced full description of the
>> original Linux patch applies to Xen, too - at least in the watchdog
>> enabled case IRQs can be enabled when entering setup_IO_APIC(). My
>> attention to this change really got caught just by the fact that it got
>> added to our (2.6.16-based) SLE10 kernel pretty recently.
> 
> note that we had to revert that eventually. The real solution is an array
> of fixes from Maciej spread out over many months.

Does it do more harm than good on some systems, or is it simply not a
comprehensive fix?

 -- Keir



_______________________________________________
Xen-devel mailing list
Xen-devel@xxxxxxxxxxxxxxxxxxx
http://lists.xensource.com/xen-devel