Bug 961034 - libvirt live migration got unexpected fail
Summary: libvirt live migration got unexpected fail
Alias: None
Product: Red Hat Enterprise Linux 6
Classification: Red Hat
Component: libvirt
Version: 6.4
Hardware: x86_64
OS: Linux
Target Milestone: rc
: ---
Assignee: Eric Blake
QA Contact: Virtualization Bugs
Keywords: ZStream
Depends On: 927176
Blocks: 966707
TreeView+ depends on / blocked
Reported: 2013-05-08 15:09 UTC by Eric Blake
Modified: 2013-11-21 09:00 UTC (History)
18 users (show)

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.
Clone Of: 927176
Last Closed: 2013-11-21 09:00:31 UTC

Attachments (Terms of Use)

External Trackers
Tracker ID Priority Status Summary Last Updated
Red Hat Product Errata RHBA-2013:1581 normal SHIPPED_LIVE libvirt bug fix and enhancement update 2013-11-21 01:11:35 UTC

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

Following the steps in bug description, do live migrate
# virsh migrate --live tsu-1 qemu+ssh:// --verbose
root@'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.


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