RHEL Engineering is moving the tracking of its product development work on RHEL 6 through RHEL 9 to Red Hat Jira (issues.redhat.com). If you're a Red Hat customer, please continue to file support cases via the Red Hat customer portal. If you're not, please head to the "RHEL project" in Red Hat Jira and file new tickets here. Individual Bugzilla bugs in the statuses "NEW", "ASSIGNED", and "POST" are being migrated throughout September 2023. Bugs of Red Hat partners with an assigned Engineering Partner Manager (EPM) are migrated in late September as per pre-agreed dates. Bugs against components "kernel", "kernel-rt", and "kpatch" are only migrated if still in "NEW" or "ASSIGNED". If you cannot log in to RH Jira, please consult article #7032570. That failing, please send an e-mail to the RH Jira admins at rh-issues@redhat.com to troubleshoot your issue as a user management inquiry. The email creates a ServiceNow ticket with Red Hat. Individual Bugzilla bugs that are migrated will be moved to status "CLOSED", resolution "MIGRATED", and set with "MigratedToJIRA" in "Keywords". The link to the successor Jira issue will be found under "Links", have a little "two-footprint" icon next to it, and direct you to the "RHEL project" in Red Hat Jira (issue links are of type "https://issues.redhat.com/browse/RHEL-XXXX", where "X" is a digit). This same link will be available in a blue banner at the top of the page informing you that that bug has been migrated.
Bug 1150820 - fail to specify wwn for virtual IDE CD-ROM
Summary: fail to specify wwn for virtual IDE CD-ROM
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Enterprise Linux 7
Classification: Red Hat
Component: qemu-kvm-rhev
Version: 7.1
Hardware: Unspecified
OS: Unspecified
medium
medium
Target Milestone: rc
: ---
Assignee: John Snow
QA Contact: Virtualization Bugs
URL:
Whiteboard:
Depends On: 1130475 1131316
Blocks:
TreeView+ depends on / blocked
 
Reported: 2014-10-09 03:12 UTC by Sibiao Luo
Modified: 2015-03-05 09:56 UTC (History)
18 users (show)

Fixed In Version: qemu-kvm-rhev-2.1.2-8.el7
Doc Type: Bug Fix
Doc Text:
Clone Of: 1131316
Environment:
Last Closed: 2015-03-05 09:56:23 UTC
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2015:0624 0 normal SHIPPED_LIVE Important: qemu-kvm-rhev security, bug fix, and enhancement update 2015-03-05 14:37:36 UTC

Comment 1 Sibiao Luo 2014-10-09 03:14:56 UTC 
host info:
# uname -r && rpm -q qemu-kvm-rhev
3.10.0-183.el7.x86_64
qemu-kvm-rhev-2.1.2-1.el7.x86_64
guest info:
rhel7.0 GA

qemu-kvm command line:
e.g:...-drive file=/home/RHEL-7.0-Server-Released_x86_64.qcow2,if=none,id=drive-virtio-disk,format=qcow2,cache=none,aio=native,werror=stop,rerror=stop -device ide-drive,bus=ide.0,unit=0,wwn=0x5000c50015ea71bb,drive=drive-virtio-disk,id=virtio-disk,bootindex=1 -drive file=/home/my-cdrom.iso,if=none,id=cd,format=raw,media=cdrom,readonly=on,cache=none,werror=stop,rerror=stop -device ide-drive,bus=ide.0,unit=1,wwn=0x5000c50015ea71ad,drive=cd,id=cdrom

# ls -l /dev/disk/by-id/wwn*
lrwxrwxrwx. 1 root root  9 Oct  9 07:06 /dev/disk/by-id/wwn-0x5000c50015ea71bb -> ../../sda
lrwxrwxrwx. 1 root root 10 Oct  9 07:06 /dev/disk/by-id/wwn-0x5000c50015ea71bb-part1 -> ../../sda1
lrwxrwxrwx. 1 root root 10 Oct  9 07:06 /dev/disk/by-id/wwn-0x5000c50015ea71bb-part2 -> ../../sda2
# ls -lh /dev/cdrom 
lrwxrwxrwx. 1 root root 3 Oct  9 07:06 /dev/cdrom -> sr0
# sg_inq -p 0x83 /dev/sda
VPD INQUIRY: Device Identification page
  Designation descriptor number 1, descriptor length: 24
    designator_type: vendor specific [0x0],  code_set: ASCII
    associated with the addressed logical unit
      vendor specific: QM00001             
  Designation descriptor number 2, descriptor length: 72
    designator_type: T10 vendor identification,  code_set: ASCII
    associated with the addressed logical unit
      vendor id: ATA     
      vendor specific: QEMU HARDDISK                           QM00001             
  Designation descriptor number 3, descriptor length: 12
    designator_type: NAA,  code_set: Binary
    associated with the addressed logical unit
      NAA 5, IEEE Company_id: 0xc50
      Vendor Specific Identifier: 0x15ea71bb
      [0x5000c50015ea71bb]
# sg_inq -p 0x83 /dev/sr0 
VPD INQUIRY: Device Identification page
invalid VPD response; probably a STANDARD INQUIRY response
Comment 2 Miroslav Rezanina 2014-11-13 09:06:22 UTC 
Fix included in qemu-kvm-rhev-2.1.2-8.el7
Comment 4 langfang 2014-11-27 03:34:52 UTC 
Reproduce this bug as follow version:
Host:
# uname -r
3.10.0-210.el7.x86_64
# rpm -q qemu-kvm-rhev
qemu-kvm-rhev-2.1.2-6.el7.x86_64

Guest:
3.10.0-210.el7.x86_64

Steps:
1.Boot guest with 
...-drive file=/root/RHEL-Server-7.0-64-copy.qcow2,if=none,id=drive-virtio-disk,format=qcow2,cache=none,aio=native,werror=stop,rerror=stop -device ide-drive,bus=ide.0,unit=0,wwn=0x5000c50015ea71bb,drive=drive-virtio-disk,id=virtio-disk,bootindex=1 -drive file=/root/en_windows_xp_professional_x64.iso,if=none,id=cd,format=raw,media=cdrom,readonly=on,cache=none,werror=stop,rerror=stop -device ide-drive,bus=ide.0,unit=1,wwn=0x5000c50015ea71ad,drive=cd,id=cdrom...

2.# ls -l /dev/disk/by-id/wwn-*
lrwxrwxrwx. 1 root root  9 Nov 27 06:25 /dev/disk/by-id/wwn-0x5000c50015ea71bb -> ../../sda
lrwxrwxrwx. 1 root root 10 Nov 27 06:25 /dev/disk/by-id/wwn-0x5000c50015ea71bb-part1 -> ../../sda1
lrwxrwxrwx. 1 root root 10 Nov 27 06:25 /dev/disk/by-id/wwn-0x5000c50015ea71bb-part2 -> ../../sda2

Results:
 Fail to specify wwn for virtual IDE CD-ROM

Verify this bug as follow  version:
Host:
# uname -r
3.10.0-210.el7.x86_64
# rpm -q qemu-kvm-rhev
qemu-kvm-rhev-2.1.2-13.el7.x86_64

Guest:
3.10.0-210.el7.x86_64

Steps as same as reproduce

Results:
# sg_inq -p 0x83 /dev/sr0
VPD INQUIRY: Device Identification page
invalid VPD response; probably a STANDARD INQUIRY response

# ls -l /dev/disk/by-id/wwn*
lrwxrwxrwx. 1 root root  9 Nov 27  2014 /dev/disk/by-id/wwn-0x5000c50015ea71ad -> ../../sr0
lrwxrwxrwx. 1 root root  9 Nov 27  2014 /dev/disk/by-id/wwn-0x5000c50015ea71bb -> ../../sda
lrwxrwxrwx. 1 root root 10 Nov 27  2014 /dev/disk/by-id/wwn-0x5000c50015ea71bb-part1 -> ../../sda1
lrwxrwxrwx. 1 root root 10 Nov 27  2014 /dev/disk/by-id/wwn-0x5000c50015ea71bb-part2 -> ../../sda2


According to above test ,this bug has been fixed.
Comment 5 langfang 2014-11-27 05:16:24 UTC 
Addtional test:

Version:
Host:
# uname -r
3.10.0-210.el7.x86_64
# rpm -q qemu-kvm-rhev
qemu-kvm-rhev-2.1.2-13.el7.x86_64

Guest:
3.10.0-210.el7.x86_64

Steps:
1.Boot guest with ide disk/ide-cdrom/scsi-cdrom ,all with wmn parameter
 
-drive file=/root/RHEL-Server-7.0-64-copy.qcow2,if=none,id=drive-virtio-disk,format=qcow2,cache=none,aio=native,werror=stop,rerror=stop -device ide-drive,bus=ide.0,unit=0,wwn=0x5000c50015ea71bb,drive=drive-virtio-disk,id=virtio-disk,bootindex=1...-drive file=/root/en_windows_xp_professional_x64.iso,if=none,id=cd,format=raw,media=cdrom,readonly=on,cache=none,werror=stop,rerror=stop -device ide-drive,bus=ide.0,unit=1,wwn=0x5000c50015ea71ad,drive=cd,id=cdrom...-drive file=/root/en_windows_xp_professional_x64.iso,if=none,media=cdrom,id=drive-cdrom-disk,format=raw,cache=none,aio=native,werror=stop,rerror=stop -device virtio-scsi-pci,bus=pci.0,addr=0x5,id=scsi1 -device scsi-cd,wwn=0x5000c50015ea78aa,drive=drive-cdrom-disk,id=cdrom-disk,bus=scsi1.0


2.In guest
[root@localhost ~]# ll /dev/disk/by-id/wwn-*
lrwxrwxrwx. 1 root root  9 Nov 27  2014 /dev/disk/by-id/wwn-0x5000c50015ea71ad -> ../../sr1--->ide-cdrom
lrwxrwxrwx. 1 root root  9 Nov 27  2014 /dev/disk/by-id/wwn-0x5000c50015ea71bb -> ../../sda
lrwxrwxrwx. 1 root root 10 Nov 27  2014 /dev/disk/by-id/wwn-0x5000c50015ea71bb-part1 -> ../../sda1
lrwxrwxrwx. 1 root root 10 Nov 27  2014 /dev/disk/by-id/wwn-0x5000c50015ea71bb-part2 -> ../../sda2
lrwxrwxrwx. 1 root root  9 Nov 27  2014 /dev/disk/by-id/wwn-0x5000c50015ea78aa -> ../../sr0-->scsi-cdrom

# sg_inq -p 0x83 /dev/sr1--->seem can't get the detail info for id-cdrom
VPD INQUIRY: Device Identification page
invalid VPD response; probably a STANDARD INQUIRY response

# sg_inq -p 0x83 /dev/sr0--->scsi-cdrom
VPD INQUIRY: Device Identification page
  Designation descriptor number 1, descriptor length: 20
    designator_type: vendor specific [0x0],  code_set: ASCII
    associated with the addressed logical unit
      vendor specific: drive-cdrom-disk
  Designation descriptor number 2, descriptor length: 12
    designator_type: NAA,  code_set: Binary
    associated with the addressed logical unit
      NAA 5, IEEE Company_id: 0xc50
      Vendor Specific Identifier: 0x15ea78aa
      [0x5000c50015ea78aa]

# sg_inq -p 0x83 /dev/sda--->ide disk
VPD INQUIRY: Device Identification page
  Designation descriptor number 1, descriptor length: 24
    designator_type: vendor specific [0x0],  code_set: ASCII
    associated with the addressed logical unit
      vendor specific: QM00001             
  Designation descriptor number 2, descriptor length: 72
    designator_type: T10 vendor identification,  code_set: ASCII
    associated with the addressed logical unit
      vendor id: ATA     
      vendor specific: QEMU HARDDISK                           QM00001             
  Designation descriptor number 3, descriptor length: 12
    designator_type: NAA,  code_set: Binary
    associated with the addressed logical unit
      NAA 5, IEEE Company_id: 0xc50
      Vendor Specific Identifier: 0x15ea71bb
      [0x5000c50015ea71bb]


Hi,John
   Is this the another problem ? Or triggered by this bug? If trigger by this bug,seem not fixed.

best regards
fang lang
Comment 6 John Snow 2014-12-01 15:57:54 UTC 
I'll have to look at why sg_inq is failing; the bugs that this BZ was cloned from were fixed with a simple patch and I assumed the same patch would alleviate the problems here, but there might be something else causing that command to fail.

It seems that this patch did fix `ll /dev/disk/by-id/wwn-*` where it did not work previously. sg_inq *might* be a separate issue.

I'll research.
Comment 7 John Snow 2014-12-01 23:06:08 UTC 
It looks as if Linux expects to find the wwn via the ATAPI IDENTIFY and/or ATA IDENTIFY commands, but the sg_inq tool expects to find it via the scsi/atapi inquiry command, in which we do not support for ATAPI entirely correctly.

It might be best to treat this as a separate bug ("IDE ATAPI devices do not respond to VPD inquiries") and fix this there.
Comment 8 langfang 2014-12-02 03:42:07 UTC 
(In reply to John Snow from comment #7)
> It looks as if Linux expects to find the wwn via the ATAPI IDENTIFY and/or
> ATA IDENTIFY commands, but the sg_inq tool expects to find it via the
> scsi/atapi inquiry command, in which we do not support for ATAPI entirely
> correctly.
> 
> It might be best to treat this as a separate bug ("IDE ATAPI devices do not
> respond to VPD inquiries") and fix this there.


Hi,John
   thanks for your explanation, there is a new bug for track this issue:
   Bug 1169595 - IDE ATAPI devices do not respond to VPD inquiries


best regards
fang lang 


According to commen5,commnet6 and comment7, we can verify this bug.
Comment 11 errata-xmlrpc 2015-03-05 09:56:23 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.

https://rhn.redhat.com/errata/RHSA-2015-0624.html
Note You need to log in before you can comment on or make changes to this bug.