From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:55925) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1an6Jb-00060M-U9 for qemu-devel@nongnu.org; Mon, 04 Apr 2016 11:21:21 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1an6JW-0006Id-Ta for qemu-devel@nongnu.org; Mon, 04 Apr 2016 11:21:19 -0400 Received: from mx1.redhat.com ([209.132.183.28]:58711) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1an6JW-0006IV-ON for qemu-devel@nongnu.org; Mon, 04 Apr 2016 11:21:14 -0400 Date: Mon, 4 Apr 2016 16:21:12 +0100 From: "Richard W.M. Jones" Message-ID: <20160404152112.GT32728@redhat.com> References: <1459514627-23867-1-git-send-email-rjones@redhat.com> <1459514627-23867-2-git-send-email-rjones@redhat.com> <20160404150204.GB13632@stefanha-x1.localdomain> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: <20160404150204.GB13632@stefanha-x1.localdomain> Subject: Re: [Qemu-devel] [PATCH v4.1] Add optionrom compatible with fw_cfg DMA version List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Stefan Hajnoczi Cc: marc.mari.barcelo@gmail.com, ehabkost@redhat.com, mst@redhat.com, qemu-devel@nongnu.org, kraxel@redhat.com, pbonzini@redhat.com, rth@twiddle.net On Mon, Apr 04, 2016 at 04:02:04PM +0100, Stefan Hajnoczi wrote: > (1) initrd loading is broken, kernel complains it finds only gibberish: > > [ 0.934582] Unpacking initramfs... > [ 1.166983] Initramfs unpacking failed: junk in compressed archive > [ 1.168458] Freeing initrd memory: 32812k freed That's strange. I certainly never saw anything like this. I wonder if it's because your initrd is particularly large? > (2) going back to non-dma boot via -M pc-$old doesn't work, appearently > fw_cfg dma is enabled even for old machine types. IIRC there was a thread about how we accidentally added DMA to old machine types. Does this matter? Rich. -- Richard Jones, Virtualization Group, Red Hat http://people.redhat.com/~rjones Read my programming and virtualization blog: http://rwmj.wordpress.com virt-df lists disk usage of guests without needing to install any software inside the virtual machine. Supports Linux and Windows. http://people.redhat.com/~rjones/virt-df/