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Bug 729219

Summary: Input/output error occurs when eject /dev/sr0 in the guest
Product: Red Hat Enterprise Linux 6 Reporter: Mike Cao <bcao>
Component: qemu-kvmAssignee: Amit Shah <amit.shah>
Status: CLOSED DUPLICATE QA Contact: Virtualization Bugs <virt-bugs>
Severity: medium Docs Contact:
Priority: medium    
Version: 6.2CC: armbru, bcao, juzhang, michen, mkenneth, tburke, virt-maint
Target Milestone: rc   
Target Release: ---   
Hardware: Unspecified   
OS: Unspecified   
Whiteboard:
Fixed In Version: Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2011-12-12 02:27:37 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Attachments:
Description Flags
screen dump none

Description Mike Cao 2011-08-09 05:06:17 UTC 
Description of problem:
start guest with -drive file=/dev/sr0,media=media ,then click "eject" in the guest ,disk can not be ejected and it prompts "input/output error in the guest 

Version-Release number of selected component (if applicable):
# uname -r&&rpm -q qemu-kvm
2.6.32-171.el6.x86_64
qemu-kvm-0.12.1.2-2.175.el6.x86_64

guest:win08R2

How reproducible:
100%

Steps to Reproduce:
1.intert ubuntu 10.10 AMD 64 bit media in host cdrom
2.start guest with -drive file=/dev/sr0
eg:usr/libexec/qemu-kvm -m 4G -smp 4 -cpu cpu64-rhel6,+x2apic -usbdevice tablet -boot menu=on -drive file=/home/ide-win08R2.raw.test,if=none,id=drive-ide0-0-0,werror=stop,rerror=stop,cache=none,format=raw -device virtio-blk-pci,drive=drive-ide0-0-0,id=ide0-0-0 -netdev tap,id=hostnet0,script=/etc/qemu-ifup,downscript=no,vhost=on -device virtio-net-pci,netdev=hostnet0,mac=76:0E:40:3F:2F:3F -boot dc -uuid dd5aee77-d635-41d4-92a0-4e59c3b5cb6c -rtc-td-hack -no-kvm-pit-reinjection -monitor stdio -name win2k8-storage -vnc :10 -drive file=/dev/sr0,if=none,id=drive-ide0-0-2,werror=stop,rerror=stop,cache=none,format=raw,media=cdrom,readonly=on -device ide-drive,drive=drive-ide0-0-2,id=ide0-0-2,bus=ide.0,unit=1
3.in the guest ,right click E:\(which was the cdrom ) ,then click "eject"
  
Actual results:
(qemu) CDROMEJECT: Input/output error
media can not be ejected

Expected results:
media should be ejected successfully.

Additional info:
Comment 1 Markus Armbruster 2011-08-09 09:11:24 UTC 
Output of monitor command "info block" before and after the failed eject, please.
Comment 2 Mike Cao 2011-08-09 09:20:12 UTC 
(In reply to comment #1)
> Output of monitor command "info block" before and after the failed eject,
> please.

before

(qemu)info block
drive-ide0-0-0: type=hd removable=0 file=/home/ide-win08R2.raw.test ro=0 drv=raw encrypted=0
drive-ide0-0-2: type=cdrom removable=1 locked=0 file=/dev/sr0 ro=1 drv=raw encrypted=0
floppy0: type=floppy removable=1 locked=0 [not inserted]
sd0: type=floppy removable=1 locked=0 [not inserted]

after:
(qemu) info block
drive-ide0-0-0: type=hd removable=0 file=/home/ide-win08R2.raw.test ro=0 drv=raw encrypted=0
drive-ide0-0-2: type=cdrom removable=1 locked=0 file=/dev/sr0 ro=1 drv=raw encrypted=0
floppy0: type=floppy removable=1 locked=0 [not inserted]
sd0: type=floppy removable=1 locked=0 [not inserted]

additional info
after click "eject" in the guest ,the media can not be opened ,referring to screendump
Comment 3 Mike Cao 2011-08-09 09:21:52 UTC 
Created attachment 517368 [details]
screen dump
Comment 5 Amit Shah 2011-12-07 10:14:12 UTC 
Host CDROM passthrough is difficult to get right due to multiple programs involved that need fixing.
Comment 7 Amit Shah 2011-12-09 09:45:44 UTC 
This bug looks to be a dup of bug 614340.  To confirm, please check 

https://bugzilla.redhat.com/show_bug.cgi?id=614340#c6

if result is similar to

https://bugzilla.redhat.com/show_bug.cgi?id=614340#c8

we can mark this bug as a dup of that one.
Comment 8 Mike Cao 2011-12-12 02:27:37 UTC 
Yes ,from the bug description ,the steps and testing results are same

*** This bug has been marked as a duplicate of bug 614340 ***