From mboxrd@z Thu Jan 1 00:00:00 1970 From: Ingo Molnar Subject: Re: [PATCH] x86: fix the potential of encountering panic "IO-APIC + timer doesn't work! ..." Date: Fri, 12 Dec 2008 10:13:29 +0100 Message-ID: <20081212091329.GG25106@elte.hu> References: <4940FBFA.76E4.0078.0@novell.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Return-path: Content-Disposition: inline In-Reply-To: <4940FBFA.76E4.0078.0@novell.com> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xensource.com Errors-To: xen-devel-bounces@lists.xensource.com To: Jan Beulich Cc: xen-devel@lists.xensource.com List-Id: xen-devel@lists.xenproject.org * Jan Beulich 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. Ingo