From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([140.186.70.92]:57053) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1QFRYh-0001jw-3u for qemu-devel@nongnu.org; Thu, 28 Apr 2011 09:47:08 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1QFRYg-0001BZ-6k for qemu-devel@nongnu.org; Thu, 28 Apr 2011 09:47:07 -0400 Received: from mx1.redhat.com ([209.132.183.28]:60711) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1QFRYf-00018v-Sa for qemu-devel@nongnu.org; Thu, 28 Apr 2011 09:47:06 -0400 Message-ID: <4DB96FA9.5000202@redhat.com> Date: Thu, 28 Apr 2011 15:46:17 +0200 From: Jes Sorensen MIME-Version: 1.0 References: <1303136821-13333-1-git-send-email-Jes.Sorensen@redhat.com> <1303136821-13333-2-git-send-email-Jes.Sorensen@redhat.com> <20110427120520.74e348d9@doriath> <4DB969E5.2060501@redhat.com> <4DB96E9E.6020300@redhat.com> In-Reply-To: <4DB96E9E.6020300@redhat.com> Content-Type: text/plain; charset=ISO-8859-1 Content-Transfer-Encoding: 7bit Subject: Re: [Qemu-devel] [PATCH v2 1/1] Add QMP bits for blockdev-snapshot-sync. List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Kevin Wolf Cc: Markus Armbruster , qemu-devel@nongnu.org, Luiz Capitulino On 04/28/11 15:41, Kevin Wolf wrote: >>> Finally, what's the expect behavior when -snapshot is used? I'm getting >>> >> this: >>> >> >>> >> (qemu) snapshot_blkdev ide0-hd0 snap-test >>> >> Could not open '/tmp/vl.6w8YXA' >>> >> (qemu) >> > >> > What type of file system is your /tmp? You need to provide full path to >> > the snapshot file if you don't want it created next to where your qemu >> > binary is being executed. > I think the problem is that this is a temporary file, i.e. unlinked > directly after it has been opened. Trying to reopen a deleted file is a > bad idea. True, but if /tmp is tmpfs, it isn't possible to open things O_DIRECT, which could also be the source of the problem here. Jes