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Description:
detach-device can't remove usb device when using xml file
Versions
libvirt-1.0.2-1.el7.x86_64
How reproducible:
100%
Steps:
1:
#cat usb.xml
<hostdev mode='subsystem' type='usb' managed='yes'>
<source>
<vendor id='0x0951'/>
<product id='0x1625'/>
</source>
</hostdev>
2: attach usb dev to guest
#virsh attach-device $guest usb.xml
Device attached successfully
3: detach usb dev from guest
#virsh detach-device $guest usb.xml
error: Failed to detach device from usb2.xml
error: operation failed: host usb device vendor=0x0951 product=0x1625 not found
Expect result
Device detached successfully
Additional info:
this worked on rhel6.4.
If add <address bus='1' device='2'/> in usb.xml , can detach usb successful.
commit a950f03e16dd958f821027aa5d396166163c3200
Author: Guannan Ren <gren>
Date: Tue Mar 26 22:17:43 2013 +0800
conf: fix a failure when detaching a usb device
#virsh detach-device $guest usb.xml
error: Failed to detach device from usb2.xml
error: operation failed: host usb device vendor=0x0951 \
product=0x1625 not found
This regresstion is due to a typo in matching function. The first
argument is always the usb device that we are checking for. If the
usb xml file provided by user contains bus and device info, we try
to search it by them, otherwise, we use vendor and product info.
The bug occurred only when detaching a usb device with no bus and
device info provided in the usb xml file.
This request was resolved in Red Hat Enterprise Linux 7.0.
Contact your manager or support representative in case you have further questions about the request.
Description: detach-device can't remove usb device when using xml file Versions libvirt-1.0.2-1.el7.x86_64 How reproducible: 100% Steps: 1: #cat usb.xml <hostdev mode='subsystem' type='usb' managed='yes'> <source> <vendor id='0x0951'/> <product id='0x1625'/> </source> </hostdev> 2: attach usb dev to guest #virsh attach-device $guest usb.xml Device attached successfully 3: detach usb dev from guest #virsh detach-device $guest usb.xml error: Failed to detach device from usb2.xml error: operation failed: host usb device vendor=0x0951 product=0x1625 not found Expect result Device detached successfully Additional info: this worked on rhel6.4. If add <address bus='1' device='2'/> in usb.xml , can detach usb successful.