[Xen-devel] Xen 3.0.4 migration failures

[John Byrne <john.l.byrne@xxxxxx>]

Hi,

With the Xen 3.0.4 I've built from source, migration is failing and the 
domain vanishes. (Either live/non-live.) The output from "xm dmesg" and 
xend.log follows. Any ideas?
Thanks,

John Byrne

xm dmesg reports:

(XEN) mm.c:551:d0 Bad L1 flags 80000000
(XEN) mm.c:828:d0 Failure in alloc_l1_table: entry 194
(XEN) mm.c:1685:d0 Error while validating mfn 12eeb3 (pfn 1608) for type 
20000000: caf=80000002 taf=20000001
(XEN) mm.c:976:d0 Failure in alloc_l2_table: entry 64
(XEN) mm.c:1685:d0 Error while validating mfn 11470e (pfn 3ad) for type 
40000000: caf=80000002 taf=40000001
(XEN) mm.c:1039:d0 Failure in alloc_l3_table: entry 0
(XEN) mm.c:1685:d0 Error while validating mfn 11470a (pfn 3b1) for type 
60000000: caf=80000002 taf=60000001
(XEN) mm.c:1960:d0 Error while pinning mfn 11470a

xend.log on the target machine reports:

ib/xen/bin/xc_restore 4 1 133120 1 2
[2007-01-05 18:47:17 xend 3206] INFO (XendCheckpoint:247) 
xc_linux_restore start: max_pfn = 20800
[2007-01-05 18:47:17 xend 3206] INFO (XendCheckpoint:247) Increased 
domain reservation by 82000 KB
[2007-01-05 18:47:17 xend 3206] INFO (XendCheckpoint:247) Reloading 
memory pages:   0%
[2007-01-05 18:47:24 xend 3206] INFO (XendCheckpoint:247) Received all 
pages (0 races)
[2007-01-05 18:47:24 xend 3206] INFO (XendCheckpoint:247) ERROR Internal 
error: Failed to pin batch of 31 page tables
[2007-01-05 18:47:24 xend 3206] INFO (XendCheckpoint:247) Restore exit 
with rc=1
[2007-01-05 18:47:24 xend.XendDomainInfo 3206] DEBUG 
(XendDomainInfo:1483) XendDomainInfo.destroy: domid=1
[2007-01-05 18:47:24 xend.XendDomainInfo 3206] DEBUG 
(XendDomainInfo:1491) XendDomainInfo.destroyDomain(1)
[2007-01-05 18:47:24 xend.XendDomainInfo 3206] ERROR 
(XendDomainInfo:1500) XendDomainInfo.destroy: xc.domain_destroy failed.
Traceback (most recent call last):
  File 
"/disk2/xen/xen-3.0.4-testing.hg/dist/install/usr/lib/python/xen/xend/XendDomainInfo.py", 
line 1495, in destroyDomain
    xc.domain_destroy(self.domid)
Error: (3, 'No such process')
[2007-01-05 18:47:24 xend 3206] ERROR (XendDomain:1001) Restore failed
Traceback (most recent call last):
  File 
"/disk2/xen/xen-3.0.4-testing.hg/dist/install/usr/lib/python/xen/xend/XendDomain.py", 
line 996, in domain_restore_fd
    return XendCheckpoint.restore(self, fd, paused=paused)
  File 
"/disk2/xen/xen-3.0.4-testing.hg/dist/install/usr/lib/python/xen/xend/XendCheckpoint.py", 
line 167, in restore
    forkHelper(cmd, fd, handler.handler, True)
  File 
"/disk2/xen/xen-3.0.4-testing.hg/dist/install/usr/lib/python/xen/xend/XendCheckpoint.py", 
line 235, in forkHelper
    raise XendError("%s failed" % string.join(cmd))
XendError: /usr/lib/xen/bin/xc_restore 4 1 133120 1 2 failed


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