Bug 603867

Summary: libvirt: VM startup fails trying to resolve 'usbX' format sysfs files
Product: Red Hat Enterprise Linux 6 Reporter: Cole Robinson <crobinso>
Component: libvirtAssignee: Cole Robinson <crobinso>
Status: CLOSED CURRENTRELEASE QA Contact: Virtualization Bugs <virt-bugs>
Severity: medium Docs Contact:
Priority: low    
Version: 6.0CC: dallan, dyuan, hbrock, mjenner, xen-maint
Target Milestone: rc   
Target Release: ---   
Hardware: All   
OS: Linux   
Whiteboard:
Fixed In Version: libvirt-0_8_1-11_el6 Doc Type: Bug Fix
Doc Text:
Story Points: ---
Clone Of: Environment:
Last Closed: 2010-11-11 14:49:19 UTC Type: ---
Regression: --- Mount Type: ---
Documentation: --- CRM:
Verified Versions: Category: ---
oVirt Team: --- RHEL 7.3 requirements from Atomic Host:
Cloudforms Team: --- Target Upstream Version:
Embargoed:
Attachments:
Description Flags
Backport of upstream fix none

Description Cole Robinson 2010-06-14 18:01:58 UTC 
Some files under /sys/bus/usb/devices/ have the format 'usbX', where
X is the USB bus number. Libvirt doesn't properly parse these files when trying to resolve produce/vendor to bus/device info. When it can't parse, the guest won't start. See also Fedora bug https://bugzilla.redhat.com/show_bug.cgi?id=598272

Fixed upstream here, should be a simple backport:

http://libvirt.org/git/?p=libvirt.git;a=commit;h=fa6da6608abb262cbbe3d200bd989c17c6409090
Comment 1 RHEL Program Management 2010-06-14 18:02:59 UTC 
This request was evaluated by Red Hat Product Management for inclusion in a Red
Hat Enterprise Linux major release.  Product Management has requested further
review of this request by Red Hat Engineering, for potential inclusion in a Red
Hat Enterprise Linux Major release.  This request is not yet committed for
inclusion.
Comment 2 Cole Robinson 2010-06-25 16:31:33 UTC 
Created attachment 426927 [details]
Backport of upstream fix

Internal posting:

http://post-office.corp.redhat.com/archives/rhvirt-patches/2010-June/msg00984.html
Comment 3 Dave Allan 2010-06-29 03:00:04 UTC 
libvirt-0_8_1-11_el6 has been built in RHEL-6-candidate with the fix.

Dave
Comment 4 dyuan 2010-07-01 10:40:13 UTC 
Verified PASSED with libvirt-0.8.1-13.el6.

VM start successfully with the following line in xml.
# virsh dumpxml demo
[...]
<hostdev mode='subsystem' type='usb' managed='yes'>
      <source>
        <vendor id='0x1d6b'/>
        <product id='0x0002'/>
        <address bus='1' device='1'/>
      </source>
      <alias name='hostdev0'/>
    </hostdev>

[...]
Comment 5 releng-rhel@redhat.com 2010-11-11 14:49:19 UTC 
Red Hat Enterprise Linux 6.0 is now available and should resolve
the problem described in this bug report. This report is therefore being closed
with a resolution of CURRENTRELEASE. You may reopen this bug report if the
solution does not work for you.