From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1760767AbYBHHFX (ORCPT ); Fri, 8 Feb 2008 02:05:23 -0500 Received: (majordomo@vger.kernel.org) by vger.kernel.org id S1755655AbYBHHFG (ORCPT ); Fri, 8 Feb 2008 02:05:06 -0500 Received: from static-71-162-243-5.phlapa.fios.verizon.net ([71.162.243.5]:52590 "EHLO grelber.thyrsus.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1755381AbYBHHFE (ORCPT ); Fri, 8 Feb 2008 02:05:04 -0500 From: Rob Landley Organization: Boundaries Unlimited To: "H. Peter Anvin" Subject: Re: 2.6.24 says "serial8250: too much work for irq4" a lot. Date: Fri, 8 Feb 2008 01:04:52 -0600 User-Agent: KMail/1.9.6 (enterprise 0.20070907.709405) Cc: Ingo Molnar , linux-kernel@vger.kernel.org References: <200802051455.10831.rob@landley.net> <200802071413.45085.rob@landley.net> <47AB75EB.3040405@zytor.com> In-Reply-To: <47AB75EB.3040405@zytor.com> MIME-Version: 1.0 Content-Type: text/plain; charset="utf-8" Content-Transfer-Encoding: 7bit Content-Disposition: inline Message-Id: <200802080104.54081.rob@landley.net> Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org On Thursday 07 February 2008 15:19:39 H. Peter Anvin wrote: > Rob Landley wrote: > > Specifically, qemu isn't paravirtualized, it's fully virtualized. The > > same kernel can run on real hardware just fine. (Sort of the point of > > the project...) > > > > I can yank the warning for the kernels I build (or set PASS_LIMIT to > > 9999999), but I'd rather not carry any more patches than I can avoid... > > Patch attached, completely untested beyond compilation. > > In particular: > > - we should probably clear the burst counter when the interrupt > line goes from inactive to active. > - there probably should be a timer which clears the burst > counter. > > However, I think I've covered most of the bases... Well, qemu still seems to work with the patch applied, and I haven't reproduced the error message yet... Rob -- "One of my most productive days was throwing away 1000 lines of code." - Ken Thompson.