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 1738392 - Libvirt cannot get disk info of the guest installed on vmware when disk Minor device number >15
Summary: Libvirt cannot get disk info of the guest installed on vmware when disk Minor...
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Enterprise Linux 8
Classification: Red Hat
Component: libvirt
Version: 8.1
Hardware: Unspecified
OS: Unspecified
unspecified
unspecified
Target Milestone: rc
: 8.6
Assignee: Michal Privoznik
QA Contact: mxie@redhat.com
URL:
Whiteboard:
Depends On:
Blocks: 2001323
TreeView+ depends on / blocked
 
Reported: 2019-08-07 05:38 UTC by liuzi
Modified: 2022-05-10 13:25 UTC (History)
16 users (show)

Fixed In Version: libvirt-7.8.0-1.module+el8.6.0+12978+7d7a0321
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
: 2001323 (view as bug list)
Environment:
Last Closed: 2022-05-10 13:18:34 UTC
Type: Bug
Target Upstream Version: 7.7.0
Embargoed:

Attachments (Terms of Use)
esx6.7-rhel7.7-x86_64.vmx (2.93 KB, text/plain)
2019-08-07 05:38 UTC, liuzi 		no flags Details
View All


Links
System ID Private Priority Status Summary Last Updated
Red Hat Product Errata RHSA-2022:1759 0 None None None 2022-05-10 13:20:07 UTC

Description liuzi 2019-08-07 05:38:45 UTC 
Created attachment 1601232 [details]
esx6.7-rhel7.7-x86_64.vmx

Description of problem:
Libvirt cannot get disk info of the guest installed on vmware when guest's Minor device number >15

Version-Release number of selected component (if applicable):
libvirt-5.5.0-2.module+el8.1.0+3773+7dd501bf.x86_64
qemu-kvm-4.0.0-6.module+el8.1.0+3736+a2aefea3.x86_64

How reproducible:
100%

Steps to reproduce:
1.Prepare a guest installed on the esx6.7, and add a disk with Minor device number 16 to the guest.
# lsblk
NAME          MAJ:MIN RM  SIZE RO TYPE MOUNTPOINT
sda             8:0    0    7G  0 disk
├─sda1          8:1    0    1G  0 part /boot
└─sda2          8:2    0    6G  0 part
  ├─rhel-root 253:0    0  5.3G  0 lvm  /
  └─rhel-swap 253:1    0  716M  0 lvm  [SWAP]
sdb             8:16   0    1G  0 disk
sr0            11:0    1 1024M  0 rom 

2.Check the guest's xml info
#  virsh -c vpx://root.73.141/data/10.73.75.219/?no_verify=1 dumpxml esx6.7-rhel7.7-x86_64
Enter root's password for 10.73.73.141:
<domain type='vmware' id='705' xmlns:vmware='http://libvirt.org/schemas/domain/vmware/1.0'>
  <name>esx6.7-rhel7.7-x86_64</name>
  <uuid>422c0152-63ab-cd03-9650-4301ae77aefd</uuid>
  <memory unit='KiB'>2097152</memory>
  <currentMemory unit='KiB'>2097152</currentMemory>
  <vcpu placement='static'>1</vcpu>
  <cputune>
    <shares>1000</shares>
  </cputune>
  <os>
    <type arch='x86_64'>hvm</type>
  </os>
  <clock offset='utc'/>
  <on_poweroff>destroy</on_poweroff>
  <on_reboot>restart</on_reboot>
  <on_crash>destroy</on_crash>
  <devices>
    <disk type='file' device='disk'>
      <source file='[esx6.7] esx6.7-rhel7.7-x86_64/esx6.7-rhel7.7-x86_64-000004.vmdk'/>
      <target dev='sda' bus='scsi'/>
      <address type='drive' controller='0' bus='0' target='0' unit='0'/>
    </disk>
    <controller type='scsi' index='0' model='vmpvscsi'/>
    <interface type='bridge'>
      <mac address='00:50:56:ac:3e:a1'/>
      <source bridge='VM Network'/>
      <model type='vmxnet3'/>
    </interface>
    <video>
      <model type='vmvga' vram='8192' primary='yes'/>
    </video>
  </devices>
  <vmware:datacenterpath>data</vmware:datacenterpath>
  <vmware:moref>vm-705</vmware:moref>
</domain>

Actual results:
As above description

Expected results:
Libvirt can get disk info when guest's Minor device number >15

Additional info:
1.The bug cannot be reproduced when disk's Minor number <=15,
2.The bug can be reproduced on rhel7 host.
3.The bug can be reproduced on the guests which meet the condition that one SCSI controller can control more than 16 disks.
Comment 6 RHEL Program Management 2021-03-15 07:38:13 UTC 
After evaluating this issue, there are no plans to address it further or fix it in an upcoming release.  Therefore, it is being closed.  If plans change such that this issue will be fixed in an upcoming release, then the bug can be reopened.
Comment 7 Richard W.M. Jones 2021-03-15 10:29:44 UTC 
It's still a bug, what makes this "stale" bug process think otherwise?
Comment 9 Michal Privoznik 2021-08-03 18:42:10 UTC 
Patches posted upstream:

https://listman.redhat.com/archives/libvir-list/2021-August/msg00038.html
Comment 10 Michal Privoznik 2021-08-16 12:24:59 UTC 
Merged upstream as:

32f7db0989 vmx: Support super wide SCSI bus
5c254bb541 conf: Store SCSI bus length in virDomainDef
48344c640f vmx: Drop needless check in virVMXParseDisk()
d628c5ded1 vmx: Rework disk def allocation
de1829059a vmx2xmltest: Add a test case
5e16038284 vmx: Fill virtualHW.version to ESX version mapping

v7.6.0-133-g32f7db0989
Comment 11 John Ferlan 2021-09-05 14:19:51 UTC 
Move to RHEL since RHEL-AV will only be a rebuild of RHEL starting w/ 8.6.0
Comment 12 mxie@redhat.com 2021-10-21 11:30:55 UTC 
Test the bug with libvirt-client-7.8.0-1.module+el8.6.0+12978+7d7a0321.x86_64

Steps:
1.Prepare a guest with more than 16 disks on VMware ESXi host, then use virsh to dump the libvirtxml of the guest
# virsh -c vpx://root.198.169/data/10.73.199.217/?no_verify=1 dumpxml Auto-esx7.0-rhel8.5-with-more-than-16disks
Enter root's password for 10.73.198.169: 
<domain type='vmware' xmlns:vmware='http://libvirt.org/schemas/domain/vmware/1.0'>
  <name>Auto-esx7.0-rhel8.5-with-more-than-16disks</name>
  ....
    </disk>
    <disk type='file' device='disk'>
      <source file='[datastore1] Auto-esx7.0-rhel8.5-with-16disks/Auto-esx7.0-rhel8.5-with-16disks_2.vmdk'/>
      <target dev='sdb' bus='scsi'/>
      <address type='drive' controller='0' bus='0' target='0' unit='1'/>
    </disk>
    <disk type='file' device='disk'>
      <source file='[datastore1] Auto-esx7.0-rhel8.5-with-16disks/Auto-esx7.0-rhel8.5-with-16disks_3.vmdk'/>
      <target dev='sdc' bus='scsi'/>
      <address type='drive' controller='0' bus='0' target='0' unit='2'/>
    </disk>
    .....
    .....
    <disk type='file' device='disk'>
      <source file='[datastore1] Auto-esx7.0-rhel8.5-with-16disks/Auto-esx7.0-rhel8.5-with-16disks_20.vmdk'/>
      <target dev='sdt' bus='scsi'/>
      <address type='drive' controller='0' bus='0' target='0' unit='20'/>
    </disk>
    <disk type='file' device='disk'>
      <source file='[datastore1] Auto-esx7.0-rhel8.5-with-16disks/Auto-esx7.0-rhel8.5-with-16disks_21.vmdk'/>
      <target dev='sdu' bus='scsi'/>
      <address type='drive' controller='0' bus='0' target='0' unit='21'/>
    </disk>
    .....

Result:
    Virsh can dump all disks(more than 16) of guest from VMware
Comment 15 mxie@redhat.com 2021-10-21 14:41:21 UTC 
Verify the bug with libvirt-client-7.8.0-1.module+el8.6.0+12978+7d7a0321.x86_64

Steps:
1.Prepare a guest with more than 16 disks on VMware ESXi host, then use virsh to dump the libvirtxml of the guest
# virsh -c vpx://root.198.169/data/10.73.199.217/?no_verify=1 dumpxml Auto-esx7.0-rhel8.5-with-more-than-16disks
Enter root's password for 10.73.198.169: 
<domain type='vmware' xmlns:vmware='http://libvirt.org/schemas/domain/vmware/1.0'>
  <name>Auto-esx7.0-rhel8.5-with-more-than-16disks</name>
  ....
    </disk>
    <disk type='file' device='disk'>
      <source file='[datastore1] Auto-esx7.0-rhel8.5-with-16disks/Auto-esx7.0-rhel8.5-with-16disks_2.vmdk'/>
      <target dev='sdb' bus='scsi'/>
      <address type='drive' controller='0' bus='0' target='0' unit='1'/>
    </disk>
    <disk type='file' device='disk'>
      <source file='[datastore1] Auto-esx7.0-rhel8.5-with-16disks/Auto-esx7.0-rhel8.5-with-16disks_3.vmdk'/>
      <target dev='sdc' bus='scsi'/>
      <address type='drive' controller='0' bus='0' target='0' unit='2'/>
    </disk>
    .....
    .....
    <disk type='file' device='disk'>
      <source file='[datastore1] Auto-esx7.0-rhel8.5-with-16disks/Auto-esx7.0-rhel8.5-with-16disks_20.vmdk'/>
      <target dev='sdt' bus='scsi'/>
      <address type='drive' controller='0' bus='0' target='0' unit='20'/>
    </disk>
    <disk type='file' device='disk'>
      <source file='[datastore1] Auto-esx7.0-rhel8.5-with-16disks/Auto-esx7.0-rhel8.5-with-16disks_21.vmdk'/>
      <target dev='sdu' bus='scsi'/>
      <address type='drive' controller='0' bus='0' target='0' unit='21'/>
    </disk>
    .....

Result:
    Virsh can dump all disks(more than 16) of guest from VMware, move the bug from ON_QA to VERIFIED
Comment 17 errata-xmlrpc 2022-05-10 13:18:34 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 (Moderate: virt:rhel and virt-devel:rhel security, bug fix, and enhancement update), 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://access.redhat.com/errata/RHSA-2022:1759
Note You need to log in before you can comment on or make changes to this bug.