From mboxrd@z Thu Jan 1 00:00:00 1970 From: Gleb Natapov Subject: Re: KVM/KGDB integration Date: Wed, 27 Nov 2013 12:08:25 +0200 Message-ID: <20131127100825.GR959@redhat.com> References: <1384872810-29492-1-git-send-email-alonid@stratoscale.com> Mime-Version: 1.0 Content-Type: text/plain; charset=us-ascii Cc: linux-kernel@vger.kernel.org, kvm@vger.kernel.org, kgdb-bugreport@lists.sourceforge.net, x86@kernel.org, pbonzini@redhat.com, tglx@linutronix.de, mingo@redhat.com, hpa@zytor.com, Jason Wessel To: Dan Aloni Return-path: Content-Disposition: inline In-Reply-To: <1384872810-29492-1-git-send-email-alonid@stratoscale.com> Sender: linux-kernel-owner@vger.kernel.org List-Id: kvm.vger.kernel.org Copying KGDB maintainer to get some feedback. On Tue, Nov 19, 2013 at 04:53:28PM +0200, Dan Aloni wrote: > Hello, > > The following two patches address an integration issue between KVM and > KGDB. The issue described in the patches can be triggered with vanilla > kernels that enable KGDB and KVM together on x86 (more specifically, > we bump into this with Fedora's 3.11 kernel from FC19). > > On a kernel enabled with KGDB, running with kvm-unit-tests should > reproduce the issue. On VM hosts servers where an admin accidently > left an active KGDB, and unprivilged guest might be able to bring > the host down. > > Patches apply to linux-next and earlier kernels. -- Gleb.