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Bug 2128222 - VDUSE block export should be disabled in builds for now
Summary: VDUSE block export should be disabled in builds for now
Keywords:
Status: CLOSED ERRATA
Alias: None
Product: Red Hat Enterprise Linux 9
Classification: Red Hat
Component: qemu-kvm
Version: 9.2
Hardware: All
OS: Linux
low
low
Target Milestone: rc
: ---
Assignee: Kevin Wolf
QA Contact: qing.wang
URL:
Whiteboard:
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2022-09-20 09:22 UTC by qing.wang
Modified: 2023-05-09 07:46 UTC (History)
15 users (show)

Fixed In Version: qemu-kvm-7.2.0-7.el9
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
Environment:
Last Closed: 2023-05-09 07:20:41 UTC
Type: ---
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)


Links
System ID Private Priority Status Summary Last Updated
Gitlab redhat/centos-stream/src qemu-kvm merge_requests 142 0 None opened spec: Disable VDUSE 2023-01-31 12:40:37 UTC
Red Hat Issue Tracker RHELPLAN-134406 0 None None None 2022-09-20 09:46:52 UTC
Red Hat Product Errata RHSA-2023:2162 0 None None None 2023-05-09 07:22:20 UTC

Description qing.wang 2022-09-20 09:22:34 UTC 
Description of problem:

There is new export type in qsd help message:

  --export [type=]vduse-blk,id=<id>,node-name=<node-name>
           ,name=<vduse-name>[,writable=on|off]
           [,num-queues=<num-queues>][,queue-size=<queue-size>]
           [,logical-block-size=<logical-block-size>]
           [,serial=<serial-number>]
                         export the specified block node as a
                         vduse-blk device


But the type need kernel support and may be used in QEMU.
So far, the type is not supported in QEMU.


Version-Release number of selected component (if applicable):
qemu-storage-daemon version 7.1.0 (qemu-kvm-7.1.0-1.el9)


How reproducible:
100%

Steps to Reproduce:
1.qemu-storage-daemon -h
2.
3.

Actual results:
Find unsupported export type in QEMU 
Expected results:
Hide unsupported export type

Additional info:
Comment 1 Kevin Wolf 2022-09-20 14:56:32 UTC 
We shouldn't have enabled VDUSE in the RHEL build until we make an explicit decision to support this. So the fix should be to disable it again.
Comment 6 Yanan Fu 2023-02-08 07:03:03 UTC 
QE bot(pre verify): Set 'Verified:Tested,SanityOnly' as gating/tier1 test pass.
Comment 9 qing.wang 2023-02-09 02:14:37 UTC 
Passed test on 7.2.0-7.el9

qemu-storage-daemon -V
qemu-storage-daemon version 7.2.0 (qemu-kvm-7.2.0-7.el9)

root@dell-per440-07 /tmp/qemu7-7 $ qemu-storage-daemon -h
Usage: qemu-storage-daemon [options]
QEMU storage daemon

  -h, --help             display this help and exit
  -T, --trace [[enable=]<pattern>][,events=<file>][,file=<file>]
                         specify tracing options
  -V, --version          output version information and exit

  --blockdev [driver=]<driver>[,node-name=<N>][,discard=ignore|unmap]
             [,cache.direct=on|off][,cache.no-flush=on|off]
             [,read-only=on|off][,auto-read-only=on|off]
             [,force-share=on|off][,detect-zeroes=on|off|unmap]
             [,driver specific parameters...]
                         configure a block backend

  --chardev <options>    configure a character device backend
                         (see the qemu(1) man page for possible options)

  --daemonize            daemonize the process, and have the parent exit
                         once startup is complete

  --export [type=]nbd,id=<id>,node-name=<node-name>[,name=<export-name>]
           [,writable=on|off][,bitmap=<name>]
                         export the specified block node over NBD
                         (requires --nbd-server)

  --export [type=]vhost-user-blk,id=<id>,node-name=<node-name>,
           addr.type=unix,addr.path=<socket-path>[,writable=on|off]
           [,logical-block-size=<block-size>][,num-queues=<num-queues>]
                         export the specified block node as a
                         vhost-user-blk device over UNIX domain socket
  --export [type=]vhost-user-blk,id=<id>,node-name=<node-name>,
           addr.type=fd,addr.str=<fd>[,writable=on|off]
           [,logical-block-size=<block-size>][,num-queues=<num-queues>]
                         export the specified block node as a
                         vhost-user-blk device over file descriptor

  --monitor [chardev=]name[,mode=control][,pretty[=on|off]]
                         configure a QMP monitor

  --nbd-server addr.type=inet,addr.host=<host>,addr.port=<port>
               [,tls-creds=<id>][,tls-authz=<id>][,max-connections=<n>]
  --nbd-server addr.type=unix,addr.path=<path>
               [,tls-creds=<id>][,tls-authz=<id>][,max-connections=<n>]
                         start an NBD server for exporting block nodes

  --object help          list object types that can be added
  --object <type>,help   list properties for the given object type
  --object <type>[,<property>=<value>...]
                         create a new object of type <type>, setting
                         properties in the order they are specified. Note
                         that the 'id' property must be set.
                         See the qemu(1) man page for documentation of the
                         objects that can be added.

  --pidfile <path>       write process ID to a file after startup
Comment 13 errata-xmlrpc 2023-05-09 07:20:41 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: qemu-kvm 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-2023:2162
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