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Bug 1025235 - the readonly permission of floppy will be changed after eject/change
Summary: the readonly permission of floppy will be changed after eject/change
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Enterprise Linux 6
Classification: Red Hat
Component: qemu-kvm
Version: 6.5
Hardware: Unspecified
OS: Unspecified
medium
medium
Target Milestone: rc
: ---
Assignee: Hanna Czenczek
QA Contact: Virtualization Bugs
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2013-10-31 09:53 UTC by Sibiao Luo
Modified: 2014-10-14 06:53 UTC (History)
12 users (show)

Fixed In Version: qemu-kvm-0.12.1.2-2.420.el6
Doc Type: Bug Fix
Doc Text:
Clone Of:
Environment:
Last Closed: 2014-10-14 06:53:59 UTC
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Bugzilla 1105428 0 medium CLOSED readonly=on has no effect for drive with no media 2021-02-22 00:41:40 UTC
Red Hat Product Errata RHBA-2014:1490 0 normal SHIPPED_LIVE qemu-kvm bug fix and enhancement update 2014-10-14 01:28:27 UTC

Internal Links: 1105428

Description Sibiao Luo 2013-10-31 09:53:21 UTC 
Description of problem:
boot guest with a readonly permission floppy, then do eject/change the floppy, but the readonly permission will be changed.
BTW, also tried the ide/scsi-cd cdrom with the same testing that did not meet such issue, still readonly permission after eject/change the cdrom.

Version-Release number of selected component (if applicable):
# uname -r && rpm -q qemu-kvm
2.6.32-425.el6.x86_64
qemu-kvm-0.12.1.2-2.415.el6.x86_64
host info:
2.6.32-425.el6.x86_64

How reproducible:
100%

Steps to Reproduce:
1.boot guest with a readonly permission floppy.
e.g:...-drive file=/home/floopy1.vfd,if=none,id=drive-fdc0-0-0,readonly=on,format=raw -global isa-fdc.driveA=drive-fdc0-0-0
2.do eject/change the floppy.
(qemu) info block
drive-virtio-disk: removable=0 io-status=ok file=/home/RHEL6.5-20131019.1_Server_x86_64.qcow2 ro=0 drv=qcow2 encrypted=0
drive-fdc0-0-0: removable=1 locked=0 tray-open=0 file=/home/floopy1.vfd ro=1 drv=raw encrypted=0
ide1-cd0: removable=1 locked=0 tray-open=0 io-status=ok [not inserted]
sd0: removable=1 locked=0 tray-open=0 [not inserted]
(qemu) eject drive-fdc0-0-0
(qemu) info block
drive-virtio-disk: removable=0 io-status=ok file=/home/RHEL6.5-20131019.1_Server_x86_64.qcow2 ro=0 drv=qcow2 encrypted=0
drive-fdc0-0-0: removable=1 locked=0 tray-open=0 [not inserted]
ide1-cd0: removable=1 locked=0 tray-open=0 io-status=ok [not inserted]
sd0: removable=1 locked=0 tray-open=0 [not inserted]
(qemu) change drive-fdc0-0-0 /home/floopy2.vfd
(qemu) info block
drive-virtio-disk: removable=0 io-status=ok file=/home/RHEL6.5-20131019.1_Server_x86_64.qcow2 ro=0 drv=qcow2 encrypted=0
drive-fdc0-0-0: removable=1 locked=0 tray-open=0 file=/home/floopy2.vfd ro=0 drv=qcow2 encrypted=0
ide1-cd0: removable=1 locked=0 tray-open=0 io-status=ok [not inserted]
sd0: removable=1 locked=0 tray-open=0 [not inserted]
(qemu) 

OR:
(qemu) info block
drive-virtio-disk: removable=0 io-status=ok file=/home/RHEL6.5-20131019.1_Server_x86_64.qcow2 ro=0 drv=qcow2 encrypted=0
drive-fdc0-0-0: removable=1 locked=0 tray-open=0 file=/home/floopy1.vfd ro=1 drv=raw encrypted=0
ide1-cd0: removable=1 locked=0 tray-open=0 io-status=ok [not inserted]
sd0: removable=1 locked=0 tray-open=0 [not inserted]
(qemu) change drive-fdc0-0-0 /home/floopy2.vfd
(qemu) info block
drive-virtio-disk: removable=0 io-status=ok file=/home/RHEL6.5-20131019.1_Server_x86_64.qcow2 ro=0 drv=qcow2 encrypted=0
drive-fdc0-0-0: removable=1 locked=0 tray-open=0 file=/home/floopy2.vfd ro=0 drv=qcow2 encrypted=0
ide1-cd0: removable=1 locked=0 tray-open=0 io-status=ok [not inserted]
sd0: removable=1 locked=0 tray-open=0 [not inserted]

Actual results:
readonly permission will be changed after eject/change the floppy ( ro=1 -----> ro=0 ).

Expected results:
it should keep the readonly permission all the same.

Additional info:
Comment 1 Sibiao Luo 2013-10-31 09:59:44 UTC 
Also tried the ide/scsi-cd cdrom that did not meet such issue, it still keep the readonly permission all the same.

- for scsi-cd:
e.g.1:...-drive file=/home/my-cdrom1.iso,media=cdrom,if=none,id=drive-disk1,media=cdrom,format=raw,cache=none,aio=native,readonly=on -device virtio-scsi-pci,bus=pci.0,addr=0x8,id=scsi0 -device scsi-cd,bus=scsi0.0,drive=drive-disk1,id=disk1
(qemu) info block
...
drive-disk1: removable=1 locked=0 tray-open=0 io-status=ok file=/home/my-cdrom1.iso ro=1 drv=raw encrypted=0
(qemu) change drive-disk1 /home/my-cdrom2.iso 
(qemu) info block
...
drive-disk1: removable=1 locked=0 tray-open=0 io-status=ok file=/home/my-cdrom2.iso ro=1 drv=raw encrypted=0
(qemu)

- for ide:
e.g.2:...-drive file=/home/my-cdrom1.iso,media=cdrom,if=none,id=drive-disk1,format=raw,cache=none,aio=native,media=cdrom,readonly=on -device ide-drive,bus=ide.0,unit=0,drive=drive-disk1,id=disk1
(qemu) info block
...
drive-disk1: removable=1 locked=0 tray-open=0 io-status=ok file=/home/my-cdrom1.iso ro=1 drv=raw encrypted=0
(qemu) eject drive-disk1
(qemu) info block
...
drive-disk1: removable=1 locked=0 tray-open=1 io-status=ok [not inserted]
(qemu) change drive-disk1 /home/my-cdrom2.iso 
(qemu) info block
...
drive-disk1: removable=1 locked=0 tray-open=0 io-status=ok file=/home/my-cdrom2.iso ro=1 drv=raw encrypted=0

Best Regards,
sluo
Comment 4 Sibiao Luo 2013-11-01 02:37:14 UTC 
Yes, rhel7.0 host did not meet such issue.

host info:
# uname -r && rpm -q qemu-kvm
3.10.0-37.el7.x86_64
qemu-kvm-1.5.3-10.el7.x86_64

e.g:# /usr/libexec/qemu-kvm -drive file=/home/floppy1.vfd,if=none,id=drive-fdc0-0-0,readonly=on,format=raw -global isa-fdc.driveA=drive-fdc0-0-0 -vnc :1 -monitor stdio
(qemu) info block
drive-fdc0-0-0: removable=1 locked=0 tray-open=0 file=/home/floppy1.vfd ro=1 drv=raw encrypted=0 bps=0 bps_rd=0 bps_wr=0 iops=0 iops_rd=0 iops_wr=0
ide1-cd0: removable=1 locked=0 tray-open=0 io-status=ok [not inserted]
sd0: removable=1 locked=0 tray-open=0 [not inserted]  
(qemu) change drive-fdc0-0-0 /home/floppy2.vfd 
(qemu) info block
drive-fdc0-0-0: removable=1 locked=0 tray-open=0 file=/home/floppy2.vfd ro=1 drv=qcow2 encrypted=0 bps=0 bps_rd=0 bps_wr=0 iops=0 iops_rd=0 iops_wr=0
ide1-cd0: removable=1 locked=0 tray-open=0 io-status=ok [not inserted]
sd0: removable=1 locked=0 tray-open=0 [not inserted]
(qemu)

Best Regards,
sluo
Comment 5 RHEL Program Management 2013-11-04 02:55:36 UTC 
This request was not resolved in time for the current release.
Red Hat invites you to ask your support representative to
propose this request, if still desired, for consideration in
the next release of Red Hat Enterprise Linux.
Comment 6 Miroslav Rezanina 2014-01-27 07:51:30 UTC 
Fix included in qemu-kvm-0.12.1.2-2.420.el6
Comment 8 Shaolong Hu 2014-06-27 09:36:20 UTC 
Verified on qemu-kvm-rhev-0.12.1.2-2.428.el6.x86_64

(qemu) info block
drive-fdc0-0-0: removable=1 locked=0 tray-open=0 file=floppy ro=1 drv=raw encrypted=0 bps=0 bps_rd=0 bps_wr=0 iops=0 iops_rd=0 iops_wr=0
(qemu) change drive-fdc0-0-0 floppy2
(qemu) info block
drive-fdc0-0-0: removable=1 locked=0 tray-open=0 file=floppy ro=1 drv=raw encrypted=0 bps=0 bps_rd=0 bps_wr=0 iops=0 iops_rd=0 iops_wr=0


Reproduced by qemu-kvm-rhev-0.12.1.2-2.415.el6.x86_64:

(qemu) change drive-fdc0-0-0 floppy2
(qemu) info block
drive-virtio-disk0: removable=0 io-status=ok file=/root/nfs/RHEL-Server-7.0-64-virtio.qcow2 ro=0 drv=qcow2 encrypted=0 bps=0 bps_rd=0 bps_wr=0 iops=0 iops_rd=0 iops_wr=0
drive-fdc0-0-0: removable=1 locked=0 tray-open=0 file=floppy2 ro=0 drv=raw encrypted=0 bps=0 bps_rd=0 bps_wr=0 iops=0 iops_rd=0 iops_wr=0
Comment 9 errata-xmlrpc 2014-10-14 06:53:59 UTC 
Since the problem described in this bug report should be
resolved in a recent advisory, it has been closed with a
resolution of ERRATA.

For information on the advisory, and where to find the updated
files, follow the link below.

If the solution does not work for you, open a new bug report.

http://rhn.redhat.com/errata/RHBA-2014-1490.html
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