From mboxrd@z Thu Jan 1 00:00:00 1970 Return-Path: Received: from mx1.redhat.com ([209.132.183.28]:34724 "EHLO mx1.redhat.com" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1754901AbaJWThJ (ORCPT ); Thu, 23 Oct 2014 15:37:09 -0400 Message-ID: <1414093023.27420.40.camel@ul30vt.home> Subject: Re: Hard and silent lock up since linux 3.14 with PCIe pass through (vfio) From: Alex Williamson To: Andreas Hartmann Cc: Bjorn Helgaas , linux-pci Date: Thu, 23 Oct 2014 13:37:03 -0600 In-Reply-To: <54493BFA.8010609@maya.org> References: <20140923210318.498dacbd@dualc.maya.org> <1411502866.24563.8.camel@ul30vt.home> <5437A958.3000201@maya.org> <5437F1F5.3010706@maya.org> <543804BC.3080307@maya.org> <20141011003219.560cca97@dualc.maya.org> <20141010225408.GA24493@google.com> <5438CC1E.3060407@maya.org> <1413360267.4202.70.camel@ul30vt.home> <54406B34.1050808@maya.org> <1413925580.4202.189.camel@ul30vt.home> <1413927152.4202.195.camel@ul30vt.home> <5447D9D9.9030909@maya.org> <1414010215.4202.275.camel@ul30vt.home> <54492606.5090308@maya.org> <1414082022.27420.39.camel@ul30vt.home> <54493BFA.8010609@maya.org> Content-Type: text/plain; charset="UTF-8" Mime-Version: 1.0 Sender: linux-pci-owner@vger.kernel.org List-ID: On Thu, 2014-10-23 at 19:33 +0200, Andreas Hartmann wrote: > Alex Williamson wrote: > [...] > > If you use Bjorn's previous patch to disable VC save/restore and my > > patch to reorder the reset mechanisms, does echo 1 > reset for the sysfs > > entry for the device also still cause a hang? > > Yes - it's hanging too (w/ vfio bound to the device - didn't test other > possibilities). Does it happen regardless of the slot the card is plugged into? Thanks, Alex