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Re: [Qemu-devel] [PATCH] scsi: reset cdrom tray statuses on scsi_disk_re

From: Paolo Bonzini
Subject: Re: [Qemu-devel] [PATCH] scsi: reset cdrom tray statuses on scsi_disk_reset
Date: Fri, 17 May 2013 14:02:04 +0200
User-agent: Mozilla/5.0 (X11; Linux x86_64; rv:17.0) Gecko/20130311 Thunderbird/17.0.4

Il 17/05/2013 13:57, Pavel Hrdina ha scritto:
>> 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).
> 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.

Ok, these are good signs. :)

> I don't have SCSI CD-ROM device to use the sg_prevent.

All CD-ROMs ultimately speak SCSI (via ATAPI).  You don't have /dev/sr0?


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