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Bug 1375402 - Guest fail to start when it has a ccid plugged on hub
Summary: Guest fail to start when it has a ccid plugged on hub
Keywords:
Status: CLOSED DEFERRED
Alias: None
Product: Red Hat Enterprise Linux 7
Classification: Red Hat
Component: libvirt
Version: 7.3
Hardware: x86_64
OS: Unspecified
medium
medium
Target Milestone: rc
: ---
Assignee: Ján Tomko
QA Contact: yisun
URL:
Whiteboard:
: 1531480 (view as bug list)
Depends On:
Blocks:
TreeView+ depends on / blocked
 
Reported: 2016-09-13 02:35 UTC by Pei Zhang
Modified: 2019-12-18 05:06 UTC (History)
7 users (show)

Fixed In Version:
Doc Type: If docs needed, set a value
Doc Text:
Clone Of:
: 1599971 (view as bug list)
Environment:
Last Closed: 2018-12-07 14:39:20 UTC
Target Upstream Version:
Embargoed:

Attachments (Terms of Use)

Description Pei Zhang 2016-09-13 02:35:03 UTC 
Description of problem:
Since usb-ccid controllers are formatted before usb-hubs on the QEMU command line, so guest will fail to start if plug a ccid controller on hub.

Version-Release number of selected component (if applicable):
libvirt-2.0.0-8.el7.x86_64

How reproducible:
100%

Steps to Reproduce:
1. define and edit a guest like following :
#virsh dumpxml vm2 
......
<controller type='ccid' index='0'>
      <address type='usb' bus='0' port='6.1'/>
    </controller>
  <smartcard mode='passthrough' type='spicevmc'>
      <address type='ccid' controller='0' slot='0'/>
    </smartcard>
......

2. start guest 
# virsh start vm2
error: Failed to start domain vm2
error: internal error: qemu unexpectedly closed the monitor: 2016-09-12T09:47:46.638568Z qemu-kvm: -device usb-ccid,id=ccid0,bus=usb.0,port=6.1: usb port 6.1 (bus usb.0) not found (in use?)


Actual results:
As step 2, guest with usb-ccid on hub fail to start.

Expected results:
Guest can start successfully or give some error like we cannot use it in this way.


Additional info:
Comment 1 Ján Tomko 2018-01-05 10:10:21 UTC 
*** Bug 1531480 has been marked as a duplicate of this bug. ***
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