From: Keir Fraser Subject: Re: [PATCH] linux: fix condition for entering tickless state Date: Fri, 09 Mar 2007 17:42:41 +0000 Message-ID: References: <45F19F49.76E4.0078.0@novell.com> Mime-Version: 1.0 Content-Type: text/plain; charset="US-ASCII" Content-Transfer-Encoding: 7bit Return-path: In-Reply-To: <45F19F49.76E4.0078.0@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 , xen-devel@lists.xensource.com List-Id: xen-devel@lists.xenproject.org On 9/3/07 16:54, "Jan Beulich" wrote: > I noticed that timer interrupts were running at full rate regardless > of whether the system was idle. > softlockup_get_next_event() must return the maximum of zero and the > delta to the next event, not the minimum (which is always zero or > negative, yielding zero or a very large positive number as return > value). Oops. :-) K.