From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from mailman by lists.gnu.org with tmda-scanned (Exim 4.43) id 1KxmpZ-0002NJ-DB for qemu-devel@nongnu.org; Wed, 05 Nov 2008 13:10:13 -0500 Received: from exim by lists.gnu.org with spam-scanned (Exim 4.43) id 1KxmpY-0002N5-Po for qemu-devel@nongnu.org; Wed, 05 Nov 2008 13:10:12 -0500 Received: from [199.232.76.173] (port=37255 helo=monty-python.gnu.org) by lists.gnu.org with esmtp (Exim 4.43) id 1KxmpY-0002N2-LY for qemu-devel@nongnu.org; Wed, 05 Nov 2008 13:10:12 -0500 Received: from mx2.redhat.com ([66.187.237.31]:45628) by monty-python.gnu.org with esmtp (Exim 4.60) (envelope-from ) id 1KxmpY-0004PL-7S for qemu-devel@nongnu.org; Wed, 05 Nov 2008 13:10:12 -0500 Received: from int-mx2.corp.redhat.com (int-mx2.corp.redhat.com [172.16.27.26]) by mx2.redhat.com (8.13.8/8.13.8) with ESMTP id mA5IAB2S002115 for ; Wed, 5 Nov 2008 13:10:11 -0500 Message-ID: <4911E18B.2050707@redhat.com> Date: Wed, 05 Nov 2008 20:10:19 +0200 From: Avi Kivity MIME-Version: 1.0 Subject: Re: [Qemu-devel] Live migration - exec: support to be reintroduced? References: <49113157.3090101@codemonkey.ws> <20081105100546.GA25523@redhat.com> <491199A2.1040207@redhat.com> <4911AA29.1090101@codemonkey.ws> In-Reply-To: <4911AA29.1090101@codemonkey.ws> Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: 7bit Reply-To: qemu-devel@nongnu.org List-Id: qemu-devel.nongnu.org List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: qemu-devel@nongnu.org Anthony Liguori wrote: >> (qemu) acceptfd blah >> receives an file descriptor from the monitor using SCM_RIGHTS and >> assigns it to the tag 'blah' >> (qemu) migrate fd:blah >> migrates to the fd denominated by the tag 'blah' >> (qemu) closefd blah > > This could be generally useful for other things too (like char device > redirection). > > I'm not sure how many people would really use it though, you're > talking about serious unix-fu here. While SCM_RIGHTS does not feature on prime-time television, it's hardly complex. I mean, compare with tty and sessions and group leaders and all that goo. -- I have a truly marvellous patch that fixes the bug which this signature is too narrow to contain.