From mboxrd@z Thu Jan 1 00:00:00 1970 From: Andreas Olsowski Subject: Re: xen/stable-2.6.32.x xen-4.1.1 live migration fails with kernels 2.6.39, 3.0.3 and 3.1-rc2 Date: Mon, 22 Aug 2011 15:56:43 +0200 Message-ID: <4E52601B.5060609@leuphana.de> References: <4E4EA3E2.2040809@leuphana.de> <4E52224902000078000525CC@nat28.tlf.novell.com> Mime-Version: 1.0 Content-Type: multipart/mixed; boundary="===============0568442247==" Return-path: In-Reply-To: <4E52224902000078000525CC@nat28.tlf.novell.com> List-Unsubscribe: , List-Post: List-Help: List-Subscribe: , Sender: xen-devel-bounces@lists.xensource.com Errors-To: xen-devel-bounces@lists.xensource.com To: Jan Beulich Cc: "xen-devel@lists.xensource.com" List-Id: xen-devel@lists.xenproject.org This is a cryptographically signed message in MIME format. --===============0568442247== Content-Type: multipart/signed; protocol="application/pkcs7-signature"; micalg=sha1; boundary="------------ms020000010203050503010804" This is a cryptographically signed message in MIME format. --------------ms020000010203050503010804 Content-Type: text/plain; charset=ISO-8859-1; format=flowed Content-Transfer-Encoding: quoted-printable > Does it also fail the other way round (host2 -> host1)? If not, your > issue is likely fixed with 23102:1c7b601b1b35 on 4.1-testing (and > with you posting on xen-devel rather than xen-users I would really > have expected that you would have looked for similar reports or > eventual fixes before complaining). It did happen host2->host1 and host1->host2 with xen4.1.1- I did set up 2 servers with identical hardware now and in fact i dont=20 have any problems with them migrating machines. I went on to upgrade all 3 servers (2x 32gb 1x96gb) to xen-4.1-testing. Now i can migrate 32gbhost->32gbhost and 32gbhost->96gbhost but=20 96gbhost->32gbhost still fails. BUG: unable to handle kernel paging request at fffffffffffffff8 with 2.6.39 and 3.1 guest kernels, 3.0 didnt produce any output on its=20 tty0 anymore. This issue may be a little more then a memory size mismatch, since i=20 have 3 servers running xen4.2 with 96gb ram two Dell R610s and one R710, = where the R610s can migrate guests between each other just fine. They can also migrate to the R710 and back. But a host created on the R710 cant be migrated to a R610. The same exact thing happens with 4.1-testing. A guest created on a 32gb host can be migrated to the 96gb host and back = to any 32gb host. But a guest created on the 96gb host can not be migrated to a 32gb host. Here is my server list: host1: Dell PE2950 32GB RAM 4.1.1/4.1-testing/4.2 available for testing host2: Dell PE2950 32GB RAM 4.1.1/4.1-testing/4.2 available for testing host3: Dell R710 96B RAM 4.1.1/4.1-testing/4.2 available for testing host4: Dell R610 96B RAM xen4.2 host4: Dell R610 96B RAM xen4.2 --=20 Andreas Olsowski --------------ms020000010203050503010804 Content-Type: application/pkcs7-signature; name="smime.p7s" Content-Transfer-Encoding: base64 Content-Disposition: attachment; filename="smime.p7s" Content-Description: S/MIME Cryptographic Signature MIAGCSqGSIb3DQEHAqCAMIACAQExCzAJBgUrDgMCGgUAMIAGCSqGSIb3DQEHAQAAoIIU3TCC BCEwggMJoAMCAQICAgDHMA0GCSqGSIb3DQEBBQUAMHExCzAJBgNVBAYTAkRFMRwwGgYDVQQK ExNEZXV0c2NoZSBUZWxla29tIEFHMR8wHQYDVQQLExZULVRlbGVTZWMgVHJ1c3QgQ2VudGVy MSMwIQYDVQQDExpEZXV0c2NoZSBUZWxla29tIFJvb3QgQ0EgMjAeFw0wNjEyMTkxMDI5MDBa Fw0xOTA2MzAyMzU5MDBaMFoxCzAJBgNVBAYTAkRFMRMwEQYDVQQKEwpERk4tVmVyZWluMRAw 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