Re: a problem about xen4.0 remus

[Brendan Cully <brendan@cs.ubc.ca>]

On Tuesday, 06 July 2010 at 15:20, taojiang628 wrote:
> hello:
> I have a problem about the remus, I use xen-4.0-test.hg+linux-2.6.18-xen.hg ,anyone know what should I do about this problem. Thank you!
> [root@localhost ~]# remus -i 100  centos5.4 192.168.10.190
> Disk is not replicated: tap:aio:/root/xen/domains/centos-5.4/disk.img,xvda,w
> modprobe -q ifb
> WARNING: suspend event channel unavailable, falling back to slow xenstore signalling
> Had 0 unexplained entries in p2m table
>  1: sent 65252, skipped 284, delta 23066ms, dom0 24%, target 0%, sent 92Mb/s, dirtied 0Mb/s 365 pages
>  2: sent 365, skipped 0, delta 128ms, dom0 29%, target 0%, sent 93Mb/s, dirtied 10Mb/s 41 pages
>  3: sent 41, skipped 0, Start last iteration
> PROF: suspending at 1278311972.985159
> installing buffer on imq0...  done.
> SUSPEND shinfo 0000027b
> delta 55ms, dom0 94%, target 5%, sent 24Mb/s, dirtied 69Mb/s 117 pages
>  4: sent 117, skipped 0, delta 3ms, dom0 100%, target 0%, sent 1277Mb/s, dirtied 1277Mb/s 117 pages
> Total pages sent= 65775 (0.97x)
> (of which 0 were fixups)
> All memory is saved
> PROF: resumed at 1278311973.044589
> PROF: flushed memory at 1278311973.048302
> PROF: suspending at 1278311973.101436
> timeout polling fd
> ERROR Internal error: Suspend request failed
> ERROR Internal error: Domain appears not to have suspended
> Save exit rc=1
> Exception exceptions.KeyError: 'imq0' in <bound method BufferedNIC.__del__ of <xen.remus.device.BufferedNIC object at 0xb7971a4c>> ignored
> [root@localhost ~]#

What kernel are you using for your guest? The event channel warning
suggests it's not 2.6.18. If you can, use the Xen 2.6.18 kernel for
your guest as well. Also, take a look at the instructions here:

http://nss.cs.ubc.ca/remus/doc.html