Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1755475Ab2EOFCb (ORCPT ); Tue, 15 May 2012 01:02:31 -0400 Received: from mail-gg0-f174.google.com ([209.85.161.174]:57584 "EHLO mail-gg0-f174.google.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1753128Ab2EOFCa (ORCPT ); Tue, 15 May 2012 01:02:30 -0400 Date: Tue, 15 May 2012 00:02:21 -0500 From: Jonathan Nieder To: Paul Gortmaker Cc: stable@kernel.org, linux-kernel@vger.kernel.org Subject: Re: [34-longterm 074/179] xen: Use IRQF_FORCE_RESUME Message-ID: <20120515050221.GA4292@burratino> References: <1337048075-6132-1-git-send-email-paul.gortmaker@windriver.com> <1337048075-6132-75-git-send-email-paul.gortmaker@windriver.com> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <1337048075-6132-75-git-send-email-paul.gortmaker@windriver.com> User-Agent: Mutt/1.5.21 (2010-09-15) Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Content-Length: 877 Lines: 27 Hi Paul, Paul Gortmaker wrote: > From: Thomas Gleixner [...] > If you see a problem with using this for longterm, please comment. [...] > commit 676dc3cf5bc36a9e129a3ad8fe3bd7b2ebf20f5d upstream. > > Mark the IRQF_NO_SUSPEND interrupts IRQF_FORCE_RESUME and remove the extra > walk through the interrupt descriptors. This produces resume failures and migration failures in Xen guests[1]. Commit 9bab0b7fbace (genirq: Add IRQF_RESUME_EARLY and resume such IRQs earlier, 2011-11-09) is needed on top to avoid regressions. Hope that helps, Jonathan [1] http://thread.gmane.org/gmane.linux.kernel/1198673 -- To unsubscribe from this list: send the line "unsubscribe linux-kernel" in the body of a message to majordomo@vger.kernel.org More majordomo info at http://vger.kernel.org/majordomo-info.html Please read the FAQ at http://www.tux.org/lkml/