[Date Prev][Date Next][Thread Prev][Thread Next][Date Index][Thread Index] RE: [Xen-users] migrating between different hardware (xen-3.1.3)
This has been brought up a few times on the list. The problem is the cpu features that the guest is using. When you transfer a domain from the p4 to the a64, it supports all the flags (being a generation or two newer) that the p4 does, however in reverse it is not the case. There was some ongoing work to create a filter for domain creation that would allow the 'lowest common denominator'. However, it seems it's never made into the codetree. It has been listed on the xen roadmap for a long time now. In short, this doesn't work now, and unless somebody completes the feature filter, it may not work for some time. You should be careful to ensure that all the hosts that you transfer to do in fact support all the cpu flags that the creating host does, otherwise you will run into seemingly random crashes, corruption, or hangs. For the moment, it is only recommendable to do domain transfer between identical (or same generation same lineup) cpus. -----Original Message----- From: xen-users-bounces@xxxxxxxxxxxxxxxxxxx [mailto:xen-users-bounces@xxxxxxxxxxxxxxxxxxx] On Behalf Of b52@xxxxxxxxx Sent: February 23, 2008 4:13 AM To: Xen-users@xxxxxxxxxxxxxxxxxxx Subject: [Xen-users] migrating between different hardware (xen-3.1.3) Hi, I setup a testbed todo some migration tests for work and got a problem.. I used two P4 2.4GHz an AMD64 4200+ (SVM) and an Intel C2D 6320 1.86GHz. I had xen 3.1.3 with 2.6.18 and exactly the same versions on all systems (mirrored AoE) and one 32Bit domU Now if I created this domU on one of the P4s, I was able to migrate it between every host. If I created this domU on the AMD or Intel C2D, it was only possible to migrate between these both. The domU always crashed if I tried to migrate it to the P4s. You can find the xm info of all 4 PCs and one xm log of source(AMD) and one xm log of destination(P4) in close. Any help is appreciated and please CC me Cheers, Holger _______________________________________________ Xen-users mailing list Xen-users@xxxxxxxxxxxxxxxxxxx http://lists.xensource.com/xen-users
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