| Summary: | USB device still exist after hot-unplug usb device and shutdown VM from virt-manager | ||
|---|---|---|---|
| Product: | Red Hat Enterprise Linux 6 | Reporter: | mliu |
| Component: | virt-manager | Assignee: | Cole Robinson <crobinso> |
| Status: | CLOSED ERRATA | QA Contact: | Virtualization Bugs <virt-bugs> |
| Severity: | medium | Docs Contact: | |
| Priority: | low | ||
| Version: | 6.1 | CC: | ajia, dyuan, mliu, mzhan |
| Target Milestone: | rc | ||
| Target Release: | --- | ||
| Hardware: | Unspecified | ||
| OS: | Unspecified | ||
| Whiteboard: | |||
| Fixed In Version: | Doc Type: | Bug Fix | |
| Doc Text: |
Cause:
virt-manager was incorrectly comparing a running guest's USB devices to the USB devices of its offline config
Consequence:
A hotunplugged USB device would reappear when the guest was rebooted.
Fix:
Make sure device comparisons work for an online and offline guest.
Result:
Hotunplug correctly removes the USB device for all subsequent guest starts
|
Story Points: | --- |
| Clone Of: | Environment: | ||
| Last Closed: | 2011-12-06 16:07:55 UTC | Type: | --- |
| Regression: | --- | Mount Type: | --- |
| Documentation: | --- | CRM: | |
| Verified Versions: | Category: | --- | |
| oVirt Team: | --- | RHEL 7.3 requirements from Atomic Host: | |
| Cloudforms Team: | --- | Target Upstream Version: | |
Good catch. Fixed upstream: http://git.fedorahosted.org/git?p=virt-manager.git;a=commit;h=fa0070b1dda9dbe2aafd70da64fdc0d4d7b963a2 Fixed in virt-manager-0.9.0-2.el6 Verified PASS in below environment: # uname -r 2.6.32-165.el6.x86_64 qemu-kvm-0.12.1.2-2.175.el6.x86_64 libvirt-0.9.4-0rc1.2.el6.x86_64 virt-manager-0.9.0-5.el6.x86_64 Steps: 1. For a health guest, hotplug and hotunplug the usb device for the guest successfully. 2. Shutdown/Reboot the guest, from virt-manager check the USB device does not exist in guest any more. # virsh dumpxml qcow2|grep hostdev no output # virsh edit qcow2 no hostdev element found. --- I can reproduce this bug with virt-manager-0.8.6-4.el6.noarch.
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New Contents:
Cause:
virt-manager was incorrectly comparing a running guest's USB devices to the USB devices of its offline config
Consequence:
A hotunplugged USB device would reappear when the guest was rebooted.
Fix:
Make sure device comparisons work for an online and offline guest.
Result:
Hotunplug correctly removes the USB device for all subsequent guest starts
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-2011-1642.html |
Description of problem: When hot-plug an usb device , and then remove it from the running guest successfully. But when I shutdown the guest, the usb device is displayed on Hardware detail list again. Version-Release number of selected component (if applicable): How reproducible: virt-manager-0.8.6-4.el6.noarch libvirt-0.8.7-18.el6.x86_64 qemu-kvm-0.12.1.2-2.158.el6.x86_64 kernel-2.6.32-131.0.1.el6.x86_64 Steps to Reproduce: 1. Start a VM using virt-manager. 2. Check device using lspci, here we will hotplug network from host to guest: # lsusb ... Bus 002 Device 002: ID 0781:5151 SanDisk Corp. Cruzer Micro Flash Drive ... 3. Open a Virtual Machine->show details->"Add Hardware"->select 'USB Host Device' in hardware type list->select 002:002 in device list to assign the usb device to a vm. 4. The usb device is added successfully. 5. Make sure the guest is in running status 6. Open the guest virtual details page and click this usb device, then click Remove button 7. The usb device is removed successfully 8. Shutdown the VM 9. Open a Virtual Machine->show details, check that usb device Actual results: the usb device is displayed again. Expected results: the usb device should not be displayed, because it has been removed. Additional info: After usb device is removed, I edit the guest xml, the usb device info still exist in it. But dumpxml cannot find the usb device info. #virsh edit rhel5.6 ... <hostdev mode='subsystem' type='usb' managed='yes'> <source> <vendor id='0x0bda'/> <product id='0x0119'/> </source> </hostdev> ...