Note: This bug is displayed in read-only format because
the product is no longer active in Red Hat Bugzilla.
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.
Description
libvirt wrong parse of usbredir alias name
Version:
libvirt-0.10.2-29.el6.x86_64
How reproducible:
100%
Steps to Reproduce:
1.Prepare a guest.
2.Use virsh edit guest to add usbredir devices,added part as below show:
<redirdev bus='usb' type='tcp'>
<source mode='connect' host='localhost' service='4000'/>
<protocol type='raw'/>
<alias name='redir0'/>
</redirdev>
3.Save the update,error shows:
error: An error occurred, but the cause is unknown
Failed. Try again? [y,n,f,?]:
4.If I remove the alias part from xml,no error shows.
Actual results：
As step 3 describes.
Expected results:
libvirt can parse the alias name of usbredir device.
Additional info:
1.The issue block migration of guests with usbredir devices.
# virsh migrate --live mig qemu+ssh://$ip/system
root@$ip's password:
error: An error occurred, but the cause is unknown
2.The issue can not be reproduced on rhel7.
This has been fixed upstream as a part of
commit cc244e24416b7785258c69995483015bbf8927dd
CommitDate: 2012-11-21 17:54:35 +0100
conf: add support for booting from redirected USB devices
Commit a4c19459aa8634c43b51e8138fb1d7eec4c17824 only added the
QEMU capability flag, command line option and added the boot element
for redirdev's in the XML schema.
This patch adds support for parsing and writing the XML with redirdevs
with the boot flag. It also ignores unknown XML elements in redirdev
instead of failing with:
"error: An error occurred, but the cause is unknown"
Bug: https://bugzilla.redhat.com/show_bug.cgi?id=805414
git describe: v1.0.0-91-gcc244e2 contains: v1.0.1-rc1~226
I can reproduce this with package:
libvirt-0.10.2-32.el6.x86_64
verify with :
libvirt-0.10.2-33.el6.x86_64
verify steps:
1.Prepare a guest.
2.Plug in a usb device on host with usbredir packages installed.
# lsusb
Bus 002 Device 007: ID 058f:6387 Alcor Micro Corp. Flash Drive
# usbredirserver -p 4000 058f:6387
3.Use virsh edit guest to add usbredir devices,added part as below show:
<redirdev bus='usb' type='tcp'>
<source mode='connect' host='localhost' service='4000'/>
<protocol type='raw'/>
<alias name='redir0'/>
</redirdev>
3.Save the update, no error shows:
# virsh edit rr66
Domain rr66 XML configuration edited.
4.boot the guest and check:
# virsh dumpxml rr66 |grep -A6 redirdev
<redirdev bus='usb' type='tcp'>
<source mode='connect' host='localhost' service='4000'/>
<protocol type='raw'/>
<alias name='redir0'/>
</redirdev>
libvirt can parse the alias name of usbredir device correctly,so set as verified.
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-2014-1374.html
Description libvirt wrong parse of usbredir alias name Version: libvirt-0.10.2-29.el6.x86_64 How reproducible: 100% Steps to Reproduce: 1.Prepare a guest. 2.Use virsh edit guest to add usbredir devices,added part as below show: <redirdev bus='usb' type='tcp'> <source mode='connect' host='localhost' service='4000'/> <protocol type='raw'/> <alias name='redir0'/> </redirdev> 3.Save the update,error shows: error: An error occurred, but the cause is unknown Failed. Try again? [y,n,f,?]: 4.If I remove the alias part from xml,no error shows. Actual results： As step 3 describes. Expected results: libvirt can parse the alias name of usbredir device. Additional info: 1.The issue block migration of guests with usbredir devices. # virsh migrate --live mig qemu+ssh://$ip/system root@$ip's password: error: An error occurred, but the cause is unknown 2.The issue can not be reproduced on rhel7.