From mboxrd@z Thu Jan 1 00:00:00 1970 Received: from eggs.gnu.org ([208.118.235.92]:47081) by lists.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UdJIL-00027m-6R for qemu-devel@nongnu.org; Fri, 17 May 2013 07:57:58 -0400 Received: from Debian-exim by eggs.gnu.org with spam-scanned (Exim 4.71) (envelope-from ) id 1UdJIJ-0007Wk-UA for qemu-devel@nongnu.org; Fri, 17 May 2013 07:57:57 -0400 Received: from mx1.redhat.com ([209.132.183.28]:25424) by eggs.gnu.org with esmtp (Exim 4.71) (envelope-from ) id 1UdJIJ-0007WL-Mg for qemu-devel@nongnu.org; Fri, 17 May 2013 07:57:55 -0400 Received: from int-mx09.intmail.prod.int.phx2.redhat.com (int-mx09.intmail.prod.int.phx2.redhat.com [10.5.11.22]) by mx1.redhat.com (8.14.4/8.14.4) with ESMTP id r4HBvrFr003322 (version=TLSv1/SSLv3 cipher=DHE-RSA-AES256-SHA bits=256 verify=OK) for ; Fri, 17 May 2013 07:57:54 -0400 Message-ID: <51961B3F.3090503@redhat.com> Date: Fri, 17 May 2013 13:57:51 +0200 From: Pavel Hrdina MIME-Version: 1.0 References: <5194FE7D.6070904@redhat.com> <5194FFDE.1000408@redhat.com> <5195053B.1070507@redhat.com> In-Reply-To: <5195053B.1070507@redhat.com> Content-Type: text/plain; charset=UTF-8; format=flowed Content-Transfer-Encoding: 7bit Subject: Re: [Qemu-devel] [PATCH] scsi: reset cdrom tray statuses on scsi_disk_reset List-Id: List-Unsubscribe: , List-Archive: List-Post: List-Help: List-Subscribe: , To: Paolo Bonzini Cc: kwolf@redhat.com, qemu-devel@nongnu.org On 16.5.2013 18:11, Paolo Bonzini wrote: > Il 16/05/2013 17:48, Pavel Hrdina ha scritto: >> >> From what I just tested it is the OS-independent HW behavior. >> >> Tested on desktop: >> 1. Turn off the computer. >> 2. Turn on the computer and after few second open the CD-ROM tray before >> any OS system is loaded and holding the power button turn the computer >> off again. The CD-ROM tray should stay opened. >> 3. Turn on the computer and the CD-ROM tray is automatically closed. > > When? Compared to the BIOS splash screen, for example. Immediately after the computer is turned on. On HP Z400 workstation it means before the monitor is turned on. > >> Next time I'll mention this test in the commit message. > > It could mean it is done in the firmware. > > What happens when you suspend the QEMU machine to RAM? I believe the > tray should remain open or, if closed, should remain locked. Can you > try the same test on bare-metal (hint: boot to emergency mode to bypass > anything that udev can do with locking the tray, then use sg_prevent to > toggle the state). > > Paolo > I've booted to init 1, then ejected the CD-ROM tray and run the pm-suspend. The computer has suspended successfully. And again immediately after the computer is turned on before the screen is turned on the CD-ROM tray is closed. I don't have SCSI CD-ROM device to use the sg_prevent. Pavel