Bug 961034

Summary:	libvirt live migration got unexpected fail
Product:	Red Hat Enterprise Linux 6	Reporter:	Eric Blake <eblake>
Component:	libvirt	Assignee:	Eric Blake <eblake>
Status:	CLOSED ERRATA	QA Contact:	Virtualization Bugs <virt-bugs>
Severity:	urgent	Docs Contact:
Priority:	urgent
Version:	6.4	CC:	acathrow, bili, cpelland, cwei, dallan, dyuan, eblake, jdenemar, juzhang, lsu, michen, mzhan, quintela, qzhang, virt-maint, xuzhang, ydu, zpeng
Target Milestone:	rc	Keywords:	ZStream
Target Release:	---
Hardware:	x86_64
OS:	Linux
Whiteboard:
Fixed In Version:	libvirt-0.10.2-19.el6	Doc Type:	Bug Fix
Doc Text:	Prior to this update, the F_DUPFD_CLOEXEC operation with the fcntl() function expected a single argument, specifying the minimum file descriptor (FD) number, but was provided none. Consequently, random stack data were accessed as the FD number and a libvirt live migration could then terminate unexpectedly. This update ensures that the argument is provided in the described scenario, thus fixing this bug.	Story Points:	---
Clone Of:	927176	Environment:
Last Closed:	2013-11-21 09:00:31 UTC	Type:	Bug
Regression:	---	Mount Type:	---
Documentation:	---	CRM:
Verified Versions:		Category:	---
oVirt Team:	---	RHEL 7.3 requirements from Atomic Host:
Cloudforms Team:	---	Target Upstream Version:
Embargoed:
Bug Depends On:	927176
Bug Blocks:	966707

Comment 1 Eric Blake 2013-05-08 15:10:11 UTC

6.5 will pick up the fix via rebase, but the problem is real enough to warrant a backport to 6.4.z.

Comment 4 yanbing du 2013-07-09 11:09:42 UTC

Verify this bug:

#rpm -q libvirt
libvirt-0.10.2-19.el6.x86_64

Following the steps in bug description, do live migrate
# virsh migrate --live tsu-1 qemu+ssh://10.66.85.73/system --verbose
root.85.73's password: 
Migration: [100 %]

And the guest running on dest host, so move this bug to VERIFIED.

Comment 6 errata-xmlrpc 2013-11-21 09:00:31 UTC

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-2013-1581.html