From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand id S1754364AbaIVT3b (ORCPT ); Mon, 22 Sep 2014 15:29:31 -0400 Received: from mx1.redhat.com ([209.132.183.28]:32339 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1751130AbaIVT33 (ORCPT ); Mon, 22 Sep 2014 15:29:29 -0400 Message-ID: <5420788F.9050208@redhat.com> Date: Mon, 22 Sep 2014 21:29:19 +0200 From: Paolo Bonzini User-Agent: Mozilla/5.0 (X11; Linux x86_64; rv:31.0) Gecko/20100101 Thunderbird/31.0 MIME-Version: 1.0 To: Christian Borntraeger , David Matlack , Gleb Natapov , kvm@vger.kernel.org, linux-kernel@vger.kernel.org, Marcelo Tosatti Subject: Re: [PATCH] kvm: don't take vcpu mutex for obviously invalid vcpu ioctls References: <1411167805-2458-1-git-send-email-dmatlack@google.com> <541FFEDE.9030800@redhat.com> <542027F6.4050205@de.ibm.com> <542032D4.305@redhat.com> <54207668.3030502@de.ibm.com> In-Reply-To: <54207668.3030502@de.ibm.com> Content-Type: text/plain; charset=windows-1252 Content-Transfer-Encoding: 7bit Sender: linux-kernel-owner@vger.kernel.org List-ID: X-Mailing-List: linux-kernel@vger.kernel.org Il 22/09/2014 21:20, Christian Borntraeger ha scritto: > "while using trinity to fuzz KVM, we noticed long stalls on invalid ioctls. Lets bail out early on invalid ioctls". or similar? Okay. David, can you explain how you found it so that I can make up my mind? Gleb and Marcelo, a fourth and fifth opinion? :) Paolo