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RE: [Xen-users] xen save error

To: "Steven Hand" <Steven.Hand@xxxxxxxxxxxx>
Subject: RE: [Xen-users] xen save error
From: "Cole, Ray" <Ray_Cole@xxxxxxx>
Date: Thu, 15 Sep 2005 10:57:02 -0500
Cc: Ian Pratt <m+Ian.Pratt@xxxxxxxxxxxx>, bryant.johan@xxxxxxxxx, xen-users@xxxxxxxxxxxxxxxxxxx
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Thread-topic: [Xen-users] xen save error
I downloaded the latest 2.0 testing install image.  I ran two different tests 
between the two machines:

1) xen-2.0-testing.gz hypervisor, 2.6.12-xenU domain 0, 2.4.30-xen0 user 
kernel.  I migrated around 15 times no problem.

2) xen-2.0-testing.gz hypervisor, 2.6.12-xenU domain 0, 2.6.12-xen0 user 
kernel.  Migrated back and forth about 4 or 5 times and got the failure.


xfrd.log on the originating host:

[1126799373.757442] Saving memory pages: iter 2   0%
 2: sent 473, skipped 15, 2   0%
 2: sent 473, skipped 15, delta 171ms, dom0 22%, target 77%, sent 90Mb/s, 
dirtied 10Mb/s 54 pages
[1126799373.929002] Saving memory pages: iter 3   0%
 3: sent 32, skipped 15,  3   0%
 3: sent 32, skipped 15, [DEBUG] Conn_sxpr>
(xfr.err 22)[DEBUG] Conn_sxpr< err=0
Retry suspend domain (0)
Retry suspend domain (0)
...
Retry suspend domain (0)
Retry suspend domain (0)
Retry suspend domain (0)
Unable to suspend domain. (0)
Unable to suspend domain. (0)
Domain appears not to have suspended: 0
Domain appears not to have suspended: 0
7913 [WRN] XFRD> Transfer errors:
7913 [WRN] XFRD> state=XFR_STATE    err=1
7913 [INF] XFRD> Xfr service err=1


xend.log
[2005-09-15 10:49:13 xend] DEBUG (blkif:203) Connecting blkif to event channel 
<BlkifBackendInterface 17 0> ports=14:4
[2005-09-15 10:49:15 xend] INFO (XendMigrate:323) Migrate BEGIN: ['migrate', 
['id', '3'], ['state', 'begin'], ['live', 1], ['resource', 0], ['src', ['host', 
'rlinuxas4.bmc.com'], ['domain', '17']], ['dst', ['host', 'raylap']]]
[2005-09-15 10:49:15 xend] INFO (XendRoot:113) EVENT> xend.domain.migrate 
['rayfed4', '17', 'begin', ['migrate', ['id', '3'], ['state', 'begin'], 
['live', 1], ['resource', 0], ['src', ['host', 'rlinuxas4.bmc.com'], ['domain', 
'17']], ['dst', ['host', 'raylap']]]]
[2005-09-15 10:49:33 xend] DEBUG (XendDomain:490) domain_restart_schedule> 17 
suspend 1
[2005-09-15 10:49:33 xend] INFO (XendRoot:113) EVENT> xend.domain.shutdown 
['rayfed4', '17', 'suspend']
[2005-09-15 10:49:43 xend] ERROR (SrvBase:162) op=migrate: errors: suspend 
failed, Callback timed out
Traceback (most recent call last):
  File "/usr/lib/python2.3/site-packages/twisted/internet/defer.py", line 308, 
in _startRunCallbacks
    self.timeoutCall.cancel()
  File "/usr/lib/python2.3/site-packages/twisted/internet/base.py", line 82, in 
cancel
    raise error.AlreadyCalled
AlreadyCalled: Tried to cancel an already-called event.
[2005-09-15 10:49:45 xend] INFO (XendDomain:571) Destroying domain: name=rayfed4
[2005-09-15 10:49:45 xend] DEBUG (XendDomainInfo:665) Destroying vifs for 
domain 17
[2005-09-15 10:49:45 xend] DEBUG (netif:305) Destroying vif domain=17 vif=0
[2005-09-15 10:49:46 xend] DEBUG (XendDomainInfo:674) Destroying vbds for 
domain 17
[2005-09-15 10:49:46 xend] DEBUG (blkif:552) Destroying blkif domain=17
[2005-09-15 10:49:46 xend] DEBUG (blkif:408) Destroying vbd domain=17 idx=0
[2005-09-15 10:49:46 xend] DEBUG (blkif:408) Destroying vbd domain=17 idx=1
[2005-09-15 10:49:46 xend] DEBUG (XendDomainInfo:634) Closing console, domain 17
[2005-09-15 10:49:46 xend] DEBUG (XendDomainInfo:622) Closing channel to domain 
17
[2005-09-15 10:49:46 xend] INFO (XendMigrate:349) Migrate ERROR: ['migrate', 
['id', '3'], ['state', 'error'], ['live', 1], ['resource', 0], ['src', ['host', 
'rlinuxas4.bmc.com'], ['domain', '17']], ['dst', ['host', 'raylap']]]
[2005-09-15 10:49:46 xend] INFO (XendRoot:113) EVENT> xend.domain.destroy 
['rayfed4', '17']
[2005-09-15 10:49:46 xend] INFO (XendRoot:113) EVENT> xend.domain.migrate 
['rayfed4', '17', 'error', ['migrate', ['id', '3'], ['state', 'error'], 
['live', 1], ['resource', 0], ['src', ['host', 'rlinuxas4.bmc.com'], ['domain', 
'17']], ['dst', ['host', 'raylap']]]]
[2005-09-15 10:49:46 xend] DEBUG (blkif:363) Unbinding vbd (type file) from 
/dev/loop0
[2005-09-15 10:49:46 xend] DEBUG (blkif:363) Unbinding vbd (type file) from 
/dev/loop1
[2005-09-15 10:49:46 xend] INFO (XendRoot:113) EVENT> xend.domain.died 
['rayfed4', '17']



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