From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:49037) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ZG6Ek-0008UR-Om for qemu-devel@nongnu.org; Fri, 17 Jul 2015 10:03:39 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1ZG6Ef-00022E-QL for qemu-devel@nongnu.org; Fri, 17 Jul 2015 10:03:38 -0400 Received: from foss.arm.com ([217.140.101.70]:39836) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1ZG6Ef-000226-LO for qemu-devel@nongnu.org; Fri, 17 Jul 2015 10:03:33 -0400 Date: Fri, 17 Jul 2015 15:03:19 +0100 From: Marc Zyngier Message-ID: <20150717150319.610f1575@arm.com> In-Reply-To: <20150717135306.GQ29283@redhat.com> References: <1437040609-9878-1-git-send-email-pbonzini@redhat.com> <20150716190546.GI29283@redhat.com> <55A8883D.1010207@redhat.com> <55A8CB3E.5090404@redhat.com> <20150717142826.6da03734@arm.com> <55A905AB.4000603@redhat.com> <20150717144840.6dfafc3f@arm.com> <20150717135306.GQ29283@redhat.com> MIME-Version: 1.0 Content-Type: text/plain; charset=US-ASCII Content-Transfer-Encoding: 7bit Subject: Re: [Qemu-devel] [PATCH v2 0/3] AioContext: ctx->dispatching is dead, all hail ctx->notify_me List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: "Richard W.M. Jones" Cc: "kwolf@redhat.com" , Paolo Bonzini , Laszlo Ersek , "qemu-devel@nongnu.org" , "stefanha@redhat.com" On Fri, 17 Jul 2015 14:53:06 +0100 "Richard W.M. Jones" wrote: > On Fri, Jul 17, 2015 at 02:48:40PM +0100, Marc Zyngier wrote: > > Still: there is nothing in the registers that remotely points to that > > area. X0 is the closest, but it'd take a big negative offset to get > > there. > > > > Is that a Linux kernel? or something else? > > You're sure it's not this one? > https://bugzilla.redhat.com/show_bug.cgi?id=1194366 > That was caused by ftrace screwing up guest memory, so it was > effectively running random code. It is also fixed (by you in fact). Don't think so. The bug you quote was the guest kernel being buggy, and touching non-memory space. This new issue seems different - this is not a Linux kernel, by the look of it. M. -- Jazz is not dead. It just smells funny.