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[Xen-devel] Xen 3.0.4 migration failures


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?


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
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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