From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([2001:4830:134:3::10]:41421) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1fxuhx-0001M2-38 for qemu-devel@nongnu.org; Thu, 06 Sep 2018 09:52:30 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1fxuht-0002Aj-Tp for qemu-devel@nongnu.org; Thu, 06 Sep 2018 09:52:29 -0400 Received: from mx3-rdu2.redhat.com ([66.187.233.73]:40604 helo=mx1.redhat.com) by eggs.gnu.org with esmtps (TLS1.0:DHE_RSA_AES_256_CBC_SHA1:32) (Exim 4.71) (envelope-from ) id 1fxuht-00028z-OB for qemu-devel@nongnu.org; Thu, 06 Sep 2018 09:52:25 -0400 Date: Thu, 6 Sep 2018 15:52:23 +0200 From: gerd hoffmann Message-ID: <20180906135223.fy5bsibinxqdhp7t@sirius.home.kraxel.org> References: <20180906120404.zuvf3kkgmzwkb6a3@sirius.home.kraxel.org> MIME-Version: 1.0 Content-Type: text/plain; charset=us-ascii Content-Disposition: inline In-Reply-To: Subject: Re: [Qemu-devel] Some confusion about live migration of usb device List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: linzhecheng Cc: CheneyLin , "wangxin (U)" , "qemu-devel@nongnu.org" On Thu, Sep 06, 2018 at 12:10:08PM +0000, linzhecheng wrote: > You had said that copying vmstate of usb-host is pointless, so just unpulg and plug it after migration is all right, > but will other usb devices like usb-storage devices lose pending USBPackets then? Ah, emulated usb devices. The usb host adapters will re-submit any unfinished usb transfers on the target machine. cheers, Gerd