From mboxrd@z Thu Jan 1 00:00:00 1970 From: "Thomas D." Subject: Re: req->nr_phys_segments > queue_max_segments (was Re: kernel BUG at drivers/block/virtio_blk.c:172!) Date: Thu, 1 Oct 2015 18:06:19 +0200 Message-ID: <560D59FB.7020501@whissi.de> References: <560C87F6.4080708@whissi.de> <20151001114817-mutt-send-email-mst@redhat.com> <560CFAD3.1030607@suse.de> <560D36DC.5050205@whissi.de> <560D52DE.3020303@whissi.de> Mime-Version: 1.0 Content-Type: text/plain; charset=utf-8 Content-Transfer-Encoding: 7bit Return-path: Received: from borg.tf-network.de ([62.75.218.204]:36760 "EHLO borg.tf-network.de" rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP id S1750915AbbJAQGV (ORCPT ); Thu, 1 Oct 2015 12:06:21 -0400 In-Reply-To: <560D52DE.3020303@whissi.de> Sender: linux-scsi-owner@vger.kernel.org List-Id: linux-scsi@vger.kernel.org To: Mike Snitzer , Hannes Reinecke Cc: "Michael S. Tsirkin" , Jens Axboe , Christoph Hellwig , "virtualization@lists.linux-foundation.org" , "linux-scsi@vger.kernel.org" Hi > seems like we have two problems: > > The first (origin) problem seems to be already fixed by Mike's patch. > > I applied the patch against linux-4.1.8, rebooted several times without > a problem. But I'll keep testing for sure. I already experienced one freeze with linux-4.1.8 and Mike's patch (same like in 4.1.9). Doesn't mean that this is related to Mike's patch (I see the same freezes with vanilla 4.1.9 not containing the patch with a higher frequency). -Thomas