From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Jan Beulich" Subject: Re: [PATCH] x86: fix the potential of encountering panic "IO-APIC+ timer doesn't work! ..." Date: Fri, 12 Dec 2008 09:50:56 +0000 Message-ID: <49424210.76E4.0078.0@novell.com> References: <4940FBFA.76E4.0078.0@novell.com> <20081212091329.GG25106@elte.hu> Mime-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: quoted-printable Return-path: In-Reply-To: <20081212091329.GG25106@elte.hu> Content-Disposition: inline List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xensource.com Errors-To: xen-devel-bounces@lists.xensource.com To: Ingo Molnar Cc: xen-devel@lists.xensource.com List-Id: xen-devel@lists.xenproject.org >>> Ingo Molnar 12.12.08 10:13 >>> > >* 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=20 >> enabled case IRQs can be enabled when entering setup_IO_APIC(). My=20 >> attention to this change really got caught just by the fact that it = got=20 >> 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=20 >of fixes from Maciej spread out over many months. What do you mean by 'eventually'? 2.6.28-rc8 still has this code, and so does -tip. Confused, Jan