From mboxrd@z Thu Jan 1 00:00:00 1970 From: Sebastian Andrzej Siewior Subject: Re: [4.4rt3] Preemption disabled at:[] kvm_vcpu_ioctl+0x30c/0x750 Date: Thu, 11 Feb 2016 17:10:25 +0100 Message-ID: <20160211161025.GB28994@linutronix.de> References: <20160210163930.GN9579@jcartwri.amer.corp.natinst.com> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Cc: "Jaggi, Manish" , linux-rt-users , Christoffer Dall To: Josh Cartwright Return-path: Received: from www.linutronix.de ([62.245.132.108]:57530 "EHLO Galois.linutronix.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750926AbcBKQK2 (ORCPT ); Thu, 11 Feb 2016 11:10:28 -0500 Content-Disposition: inline In-Reply-To: <20160210163930.GN9579@jcartwri.amer.corp.natinst.com> Sender: linux-rt-users-owner@vger.kernel.org List-ID: * Josh Cartwright | 2016-02-10 10:39:30 [-0600]: >If the concern is touching the wrong per-CPU GIC distributor registers, >it should be sufficient on -rt to downgrade the preempt_disable() / >preempt_enable() to a migrate_disable() / migrate_enable(), which is >preemptible, but prevents the task from moving to another CPU. Thanks Josh. Could you please post a patch with sign-of-by and everything? > > Josh Sebastian