[Xen-users] Migration hang with kernel PVOPS

To:	xen-users@xxxxxxxxxxxxxxxxxxx
Subject:	[Xen-users] Migration hang with kernel PVOPS
From:	Jorge Viana <jorgegviana@xxxxxxxxx>
Date:	Mon, 8 Nov 2010 17:57:20 -0200
Delivery-date:	Mon, 08 Nov 2010 12:00:25 -0800
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Hi,

I'm looking for stable kernels newer than 2.6.32 for domU purposes.

I tried 2.6.35.7 and 2.6.36 from kernel.org, but I coudn't live migrate it. It just hang after the command xm migrate, xm list show migrating-vm1 . I left it for more than 5 min and didn't migrate.

Hosts

Xen 3.4.3 from Xen.org.

Kernel 2.6.18-194.11.3.el5xen from CentOS 5.5 repo

/var/log/xen/xend.log - original host

[2010-11-05 15:21:28 2961] DEBUG (balloon:166) Balloon: 5088400 KiB free; need 5120; done.

[2010-11-05 15:21:28 2961] DEBUG (XendCheckpoint:110) [xc_save]: /usr/lib64/xen/bin/xc_save 5 95 0 0 1

[2010-11-05 15:21:28 2961] INFO (XendCheckpoint:417) xc_save: failed to get the suspend evtchn port

[2010-11-05 15:21:28 2961] INFO (XendCheckpoint:417)

[2010-11-05 15:21:28 2961] INFO (XendCheckpoint:417) Had 0 unexplained entries in p2m table

[2010-11-05 15:21:39 2961] INFO (XendCheckpoint:417) Saving memory pages: iter 1 95%^M 1: sent 261828, skipped 316, delta 11036ms, dom0 38%, target 0%, sent 777Mb/s, dirtied 1Mb/s 427 pages

[2010-11-05 15:21:39 2961] DEBUG (XendCheckpoint:388) suspend

[2010-11-05 15:21:39 2961] DEBUG (XendCheckpoint:113) In saveInputHandler suspend

[2010-11-05 15:21:39 2961] DEBUG (XendCheckpoint:115) Suspending 95 ...

[2010-11-05 15:21:39 2961] DEBUG (XendDomainInfo:511) XendDomainInfo.shutdown(suspend)

[2010-11-05 15:21:39 2961] INFO (XendCheckpoint:417) Saving memory pages: iter 2 0%^M 2: sent 427, skipped 0, delta 15ms, dom0 66%, target 0%, sent 932Mb/s, dirtied 0Mb/s 0 pages

[2010-11-05 15:21:39 2961] DEBUG (XendDomainInfo:1716) XendDomainInfo.handleShutdownWatch

[2010-11-05 15:21:39 2961] INFO (XendCheckpoint:417) Saving memory pages: iter 3 0%^M 3: sent 0, skipped 0, Start last iteration

Suggestions?

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[Xen-users] Migration hang with kernel PVOPS