From: Tim M <bugs@linuxrehab.com>
To: xen-devel@lists.xensource.com
Subject: [Bug 1759] Xen 4.0.1 live migration/restore over-writes new hypervisor's boot-time record
Date: Wed, 13 Apr 2011 09:25:46 -0700 [thread overview]
Message-ID: <20110413162545.GA29815@lumida.com> (raw)
It was suggested that I submit this to xen-devel in addition to the bug report.
I am having the exact problem described in bug 1282. The RedHat 5 errata for
Xen 3 describes the problem nicely so I will quote it:
xen calculates its running time by adding the hypervisor's up-time to the
hypervisor's boot-time record. In live migrations of para-virtualized
guests, however, the guest would over-write the new hypervisor's boot-time
record with the boot-time of the previous hypervisor. This caused
time-dependent processes on the guests to fail
This bug was apparently fixed in 3.1.1
(http://xenbits.xen.org/hg/xen-unstable.hg/rev/359707941ae8) but I am having
the issue now with Xen 4.0.1 on Debian Squeeze.
Did something change with the migrate/restore process so the previous fix no
longer applies?
Thanks in advance for any help
next reply other threads:[~2011-04-13 16:25 UTC|newest]
Thread overview: 6+ messages / expand[flat|nested] mbox.gz Atom feed top
2011-04-13 16:25 Tim M [this message]
2011-04-13 18:34 ` [Bug 1759] Xen 4.0.1 live migration/restore over-writes new hypervisor's boot-time record Keir Fraser
2011-04-13 19:31 ` Tim M
2011-04-13 20:00 ` Keir Fraser
2011-04-14 6:40 ` Ian Campbell
2011-04-14 20:44 ` Tim M
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