Hello list, I've got strange phenomenons with migrations. I think it's a bug, but am not sure, so i am asking for your help to find this ou, please ;) First the construct: Two HP DL180G5(xen0,xen1) with dual-quadcore each, 8G RAM. On each a dom0 with selfcompiled(because of network drivers) gentoo-sources-xen-2.6.27_amd64 and Xen 3.3.0. The installation is completely the same (rsynct), only different in ip and hostname. Both share a drbd0(v8.3.0) device. On it an lvm with one lv per vm. Now what's the problem: If i migrate a running vm(mx1-smartnet-de) from xen0 to xen1, it seems to work. I could do a "xm migrate mx1-smartnet-de xen1" without any interuption while having a ssh-connection to the vm and downloading a kernel-source in it. Then i did a "xm migrate mx1-smartnet-de xen0" on xen1 to move it back again. After that, the vm freezes at 100%CPU and that's it! Can't connect to it any more, whether via ssh nor via vnc/fb or console. Only "xm destroy" could help, "xm shutdown" has no impact. For debugging, i added the concerning parts of the xend.log from each and the kernel-configs, so that you could try to help me find the prob perhaps in the logs? Just after having started the vm: xen0_after_start_of_vm.log Then after the first migration: xen0_after_migrate_to_xen1_of_vm.log xen1_after_migrate_to_xen1_of_vm.log And last, after the reverse: xen0_after_migrate_back_from_xen1_of_vm.log xen1_after_migrate_back_from_xen1_of_vm.log I don't believe it is a drbd/lvm problem, because drbd keeps in "0: cs:Connected ro:Primary/Primary ds:UpToDate/UpToDate C r---" and there are no lv-concerning log-entries in syslog. There are of course errors concerning "retry suspend domain failed", but there's no hint, WHY this has got failed? Kind regards, Florian ********************************************************************************************** IMPORTANT: The contents of this email and any attachments are confidential. They are intended for the named recipient(s) only. If you have received this email in error, please notify the system manager or the sender immediately and do not disclose the contents to anyone or make copies thereof. *** eSafe scanned this email for viruses, vandals, and malicious content. *** ********************************************************************************************** _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Are they HVM domains? James> -----Original Message----- > From: xen-users-bounces@lists.xensource.com [mailto:xen-users- > bounces@lists.xensource.com] On Behalf Of Rustedt, Florian > Sent: Friday, 6 March 2009 00:13 > To: xen-users@lists.xensource.com > Subject: [Xen-users] Reverse migration breaks/freezes VM > > Hello list, > > I''ve got strange phenomenons with migrations. I think it''s a bug, butam> not sure, so i am asking for your help to find this ou, please ;) > > First the construct: > Two HP DL180G5(xen0,xen1) with dual-quadcore each, 8G RAM. > > On each a dom0 with selfcompiled(because of network drivers) gentoo- > sources-xen-2.6.27_amd64 and Xen 3.3.0. The installation is completelythe> same (rsynct), only different in ip and hostname. > > Both share a drbd0(v8.3.0) device. On it an lvm with one lv per vm. > > Now what''s the problem: > > If i migrate a running vm(mx1-smartnet-de) from xen0 to xen1, it seemsto> work. > I could do a "xm migrate mx1-smartnet-de xen1" without any interuption > while having a ssh-connection to the vm and downloading akernel-source in> it. > > Then i did a "xm migrate mx1-smartnet-de xen0" on xen1 to move it back > again. After that, the vm freezes at 100%CPU and that''s it! Can''tconnect> to it any more, whether via ssh nor via vnc/fb or console. Only "xm > destroy" could help, "xm shutdown" has no impact. > > For debugging, i added the concerning parts of the xend.log from eachand> the kernel-configs, so that you could try to help me find the probperhaps> in the logs? > > Just after having started the vm: > xen0_after_start_of_vm.log > > Then after the first migration: > xen0_after_migrate_to_xen1_of_vm.log > xen1_after_migrate_to_xen1_of_vm.log > > And last, after the reverse: > xen0_after_migrate_back_from_xen1_of_vm.log > xen1_after_migrate_back_from_xen1_of_vm.log > > I don''t believe it is a drbd/lvm problem, because drbd keeps in "0: > cs:Connected ro:Primary/Primary ds:UpToDate/UpToDate C r---" and thereare> no lv-concerning log-entries in syslog. > > There are of course errors concerning "retry suspend domain failed",but> there''s no hint, WHY this has got failed? > > Kind regards, Florian >************************************************************************ **> ******************** > IMPORTANT: The contents of this email and any attachments are > confidential. They are intended for the > named recipient(s) only. > If you have received this email in error, please notify the systemmanager> or the sender immediately and do > not disclose the contents to anyone or make copies thereof. > *** eSafe scanned this email for viruses, vandals, and maliciouscontent.> *** >************************************************************************ **> ********************_______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Hi Florian, I was unable to successfully migrate VMs running a 2.6.27 kernel. I found that the network would stop working on the first migration and then the disk IO would stop when migrating the machine back again (which made processes block waiting for disk IO and therefore the machine appear to hang). Try a 2.6.28 kernel. It seems to have sorted out my issues. Cheers, Brad On Thu, 5 Mar 2009 14:12:56 +0100 "Rustedt, Florian" <Florian.Rustedt@smartnet.de> wrote:> Hello list, > > I''ve got strange phenomenons with migrations. I think it''s a bug, but am not sure, so i am asking for your help to find this ou, please ;) > > First the construct: > Two HP DL180G5(xen0,xen1) with dual-quadcore each, 8G RAM. > > On each a dom0 with selfcompiled(because of network drivers) gentoo-sources-xen-2.6.27_amd64 and Xen 3.3.0. The installation is completely the same (rsynct), only different in ip and hostname. > > Both share a drbd0(v8.3.0) device. On it an lvm with one lv per vm. > > Now what''s the problem: > > If i migrate a running vm(mx1-smartnet-de) from xen0 to xen1, it seems to work. > I could do a "xm migrate mx1-smartnet-de xen1" without any interuption while having a ssh-connection to the vm and downloading a kernel-source in it. > > Then i did a "xm migrate mx1-smartnet-de xen0" on xen1 to move it back again. After that, the vm freezes at 100%CPU and that''s it! Can''t connect to it any more, whether via ssh nor via vnc/fb or console. Only "xm destroy" could help, "xm shutdown" has no impact. > > For debugging, i added the concerning parts of the xend.log from each and the kernel-configs, so that you could try to help me find the prob perhaps in the logs? > > Just after having started the vm: > xen0_after_start_of_vm.log > > Then after the first migration: > xen0_after_migrate_to_xen1_of_vm.log > xen1_after_migrate_to_xen1_of_vm.log > > And last, after the reverse: > xen0_after_migrate_back_from_xen1_of_vm.log > xen1_after_migrate_back_from_xen1_of_vm.log > > I don''t believe it is a drbd/lvm problem, because drbd keeps in "0: cs:Connected ro:Primary/Primary ds:UpToDate/UpToDate C r---" and there are no lv-concerning log-entries in syslog. > > There are of course errors concerning "retry suspend domain failed", but there''s no hint, WHY this has got failed? > > Kind regards, Florian > ********************************************************************************************** > IMPORTANT: The contents of this email and any attachments are confidential. They are intended for the > named recipient(s) only. > If you have received this email in error, please notify the system manager or the sender immediately and do > not disclose the contents to anyone or make copies thereof. > *** eSafe scanned this email for viruses, vandals, and malicious content. *** > **********************************************************************************************_______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Rustedt, Florian
2009-Mar-06 08:07 UTC
AW: [Xen-users] Reverse migration breaks/freezes VM
No, just paras. Could that help? Florian> -----Ursprüngliche Nachricht----- > Von: James Harper [mailto:james.harper@bendigoit.com.au] > Gesendet: Freitag, 6. März 2009 00:57 > An: Rustedt, Florian; xen-users@lists.xensource.com > Betreff: RE: [Xen-users] Reverse migration breaks/freezes VM > > Are they HVM domains? > > James > > > -----Original Message----- > > From: xen-users-bounces@lists.xensource.com [mailto:xen-users- > > bounces@lists.xensource.com] On Behalf Of Rustedt, Florian > > Sent: Friday, 6 March 2009 00:13 > > To: xen-users@lists.xensource.com > > Subject: [Xen-users] Reverse migration breaks/freezes VM > > > > Hello list, > > > > I''ve got strange phenomenons with migrations. I think it''s > a bug, but > am > > not sure, so i am asking for your help to find this ou, please ;) > > > > First the construct: > > Two HP DL180G5(xen0,xen1) with dual-quadcore each, 8G RAM. > > > > On each a dom0 with selfcompiled(because of network drivers) gentoo- > > sources-xen-2.6.27_amd64 and Xen 3.3.0. The installation is > completely > the > > same (rsynct), only different in ip and hostname. > > > > Both share a drbd0(v8.3.0) device. On it an lvm with one lv per vm. > > > > Now what''s the problem: > > > > If i migrate a running vm(mx1-smartnet-de) from xen0 to > xen1, it seems > to > > work. > > I could do a "xm migrate mx1-smartnet-de xen1" without any > interuption > > while having a ssh-connection to the vm and downloading a > kernel-source in > > it. > > > > Then i did a "xm migrate mx1-smartnet-de xen0" on xen1 to > move it back > > again. After that, the vm freezes at 100%CPU and that''s it! Can''t > connect > > to it any more, whether via ssh nor via vnc/fb or console. Only "xm > > destroy" could help, "xm shutdown" has no impact. > > > > For debugging, i added the concerning parts of the xend.log > from each > and > > the kernel-configs, so that you could try to help me find the prob > perhaps > > in the logs? > > > > Just after having started the vm: > > xen0_after_start_of_vm.log > > > > Then after the first migration: > > xen0_after_migrate_to_xen1_of_vm.log > > xen1_after_migrate_to_xen1_of_vm.log > > > > And last, after the reverse: > > xen0_after_migrate_back_from_xen1_of_vm.log > > xen1_after_migrate_back_from_xen1_of_vm.log > > > > I don''t believe it is a drbd/lvm problem, because drbd keeps in "0: > > cs:Connected ro:Primary/Primary ds:UpToDate/UpToDate C > r---" and there > are > > no lv-concerning log-entries in syslog. > > > > There are of course errors concerning "retry suspend domain failed", > but > > there''s no hint, WHY this has got failed? > > > > Kind regards, Florian > > > ************************************************************** > ********** > ** > > ******************** > > IMPORTANT: The contents of this email and any attachments are > > confidential. They are intended for the named recipient(s) only. > > If you have received this email in error, please notify the system > manager > > or the sender immediately and do > > not disclose the contents to anyone or make copies thereof. > > *** eSafe scanned this email for viruses, vandals, and malicious > content. > > *** > > > ************************************************************** > ********** > ** > > ******************** > >********************************************************************************************** IMPORTANT: The contents of this email and any attachments are confidential. They are intended for the named recipient(s) only. If you have received this email in error, please notify the system manager or the sender immediately and do not disclose the contents to anyone or make copies thereof. *** eSafe scanned this email for viruses, vandals, and malicious content. *** ********************************************************************************************** _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Hi Florian, Full ACK to Brad, kick the 2.6.27-Kernel. We have some kernel-gurus in here and they will tell you the same. Try 2.6.26 or 2.6.28 and it should work.... Best regards, Thomas Am Freitag, den 06.03.2009, 11:09 +1100 schrieb Brad Plant:> Hi Florian, > > I was unable to successfully migrate VMs running a 2.6.27 kernel. I found that the network would stop working on the first migration and then the disk IO would stop when migrating the machine back again (which made processes block waiting for disk IO and therefore the machine appear to hang). > > Try a 2.6.28 kernel. It seems to have sorted out my issues. > > Cheers, > > Brad > > > On Thu, 5 Mar 2009 14:12:56 +0100 > "Rustedt, Florian" <Florian.Rustedt@smartnet.de> wrote: > > > Hello list, > > > > I''ve got strange phenomenons with migrations. I think it''s a bug, but am not sure, so i am asking for your help to find this ou, please ;) > > > > First the construct: > > Two HP DL180G5(xen0,xen1) with dual-quadcore each, 8G RAM. > > > > On each a dom0 with selfcompiled(because of network drivers) gentoo-sources-xen-2.6.27_amd64 and Xen 3.3.0. The installation is completely the same (rsynct), only different in ip and hostname. > > > > Both share a drbd0(v8.3.0) device. On it an lvm with one lv per vm. > > > > Now what''s the problem: > > > > If i migrate a running vm(mx1-smartnet-de) from xen0 to xen1, it seems to work. > > I could do a "xm migrate mx1-smartnet-de xen1" without any interuption while having a ssh-connection to the vm and downloading a kernel-source in it. > > > > Then i did a "xm migrate mx1-smartnet-de xen0" on xen1 to move it back again. After that, the vm freezes at 100%CPU and that''s it! Can''t connect to it any more, whether via ssh nor via vnc/fb or console. Only "xm destroy" could help, "xm shutdown" has no impact. > > > > For debugging, i added the concerning parts of the xend.log from each and the kernel-configs, so that you could try to help me find the prob perhaps in the logs? > > > > Just after having started the vm: > > xen0_after_start_of_vm.log > > > > Then after the first migration: > > xen0_after_migrate_to_xen1_of_vm.log > > xen1_after_migrate_to_xen1_of_vm.log > > > > And last, after the reverse: > > xen0_after_migrate_back_from_xen1_of_vm.log > > xen1_after_migrate_back_from_xen1_of_vm.log > > > > I don''t believe it is a drbd/lvm problem, because drbd keeps in "0: cs:Connected ro:Primary/Primary ds:UpToDate/UpToDate C r---" and there are no lv-concerning log-entries in syslog. > > > > There are of course errors concerning "retry suspend domain failed", but there''s no hint, WHY this has got failed? > > > > Kind regards, Florian > > ********************************************************************************************** > > IMPORTANT: The contents of this email and any attachments are confidential. They are intended for the > > named recipient(s) only. > > If you have received this email in error, please notify the system manager or the sender immediately and do > > not disclose the contents to anyone or make copies thereof. > > *** eSafe scanned this email for viruses, vandals, and malicious content. *** > > ********************************************************************************************** > _______________________________________________ > Xen-users mailing list > Xen-users@lists.xensource.com > http://lists.xensource.com/xen-users_______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Thomas Halinka
2009-Mar-06 08:35 UTC
Re: AW: [Xen-users] Reverse migration breaks/freezes VM
Am Freitag, den 06.03.2009, 09:07 +0100 schrieb Rustedt, Florian:> No, just paras. > Could that help?nope - try other kernel than 2.6.27... Use 2.6.26 or 2.6.28 instead and it should work. We have some kernel-gurus here and they will tell you the same. Regards, Thomas> > Florian > > > -----Ursprüngliche Nachricht----- > > Von: James Harper [mailto:james.harper@bendigoit.com.au] > > Gesendet: Freitag, 6. März 2009 00:57 > > An: Rustedt, Florian; xen-users@lists.xensource.com > > Betreff: RE: [Xen-users] Reverse migration breaks/freezes VM > > > > Are they HVM domains? > > > > James > > > > > -----Original Message----- > > > From: xen-users-bounces@lists.xensource.com [mailto:xen-users- > > > bounces@lists.xensource.com] On Behalf Of Rustedt, Florian > > > Sent: Friday, 6 March 2009 00:13 > > > To: xen-users@lists.xensource.com > > > Subject: [Xen-users] Reverse migration breaks/freezes VM > > > > > > Hello list, > > > > > > I''ve got strange phenomenons with migrations. I think it''s > > a bug, but > > am > > > not sure, so i am asking for your help to find this ou, please ;) > > > > > > First the construct: > > > Two HP DL180G5(xen0,xen1) with dual-quadcore each, 8G RAM. > > > > > > On each a dom0 with selfcompiled(because of network drivers) gentoo- > > > sources-xen-2.6.27_amd64 and Xen 3.3.0. The installation is > > completely > > the > > > same (rsynct), only different in ip and hostname. > > > > > > Both share a drbd0(v8.3.0) device. On it an lvm with one lv per vm. > > > > > > Now what''s the problem: > > > > > > If i migrate a running vm(mx1-smartnet-de) from xen0 to > > xen1, it seems > > to > > > work. > > > I could do a "xm migrate mx1-smartnet-de xen1" without any > > interuption > > > while having a ssh-connection to the vm and downloading a > > kernel-source in > > > it. > > > > > > Then i did a "xm migrate mx1-smartnet-de xen0" on xen1 to > > move it back > > > again. After that, the vm freezes at 100%CPU and that''s it! Can''t > > connect > > > to it any more, whether via ssh nor via vnc/fb or console. Only "xm > > > destroy" could help, "xm shutdown" has no impact. > > > > > > For debugging, i added the concerning parts of the xend.log > > from each > > and > > > the kernel-configs, so that you could try to help me find the prob > > perhaps > > > in the logs? > > > > > > Just after having started the vm: > > > xen0_after_start_of_vm.log > > > > > > Then after the first migration: > > > xen0_after_migrate_to_xen1_of_vm.log > > > xen1_after_migrate_to_xen1_of_vm.log > > > > > > And last, after the reverse: > > > xen0_after_migrate_back_from_xen1_of_vm.log > > > xen1_after_migrate_back_from_xen1_of_vm.log > > > > > > I don''t believe it is a drbd/lvm problem, because drbd keeps in "0: > > > cs:Connected ro:Primary/Primary ds:UpToDate/UpToDate C > > r---" and there > > are > > > no lv-concerning log-entries in syslog. > > > > > > There are of course errors concerning "retry suspend domain failed", > > but > > > there''s no hint, WHY this has got failed? > > > > > > Kind regards, Florian > > > > > ************************************************************** > > ********** > > ** > > > ******************** > > > IMPORTANT: The contents of this email and any attachments are > > > confidential. They are intended for the named recipient(s) only. > > > If you have received this email in error, please notify the system > > manager > > > or the sender immediately and do > > > not disclose the contents to anyone or make copies thereof. > > > *** eSafe scanned this email for viruses, vandals, and malicious > > content. > > > *** > > > > > ************************************************************** > > ********** > > ** > > > ******************** > > > > > ********************************************************************************************** > IMPORTANT: The contents of this email and any attachments are confidential. They are intended for the > named recipient(s) only. > If you have received this email in error, please notify the system manager or the sender immediately and do > not disclose the contents to anyone or make copies thereof. > *** eSafe scanned this email for viruses, vandals, and malicious content. *** > ********************************************************************************************** > > > _______________________________________________ > Xen-users mailing list > Xen-users@lists.xensource.com > http://lists.xensource.com/xen-users_______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Rustedt, Florian
2009-Mar-06 10:56 UTC
AW: [Xen-users] Reverse migration breaks/freezes VM
Hi Thomas, can you give me a hint, how i can get a complete xen-patched source-tree for 2.6.28(.xx)? Or a xen patch-set for vanilla-sources? Or even better, is there perhaps a way for you to give me your kernel-source tree as download? Then i''ve got exactly the same version and can be sure to exclude this topic as failure source..? I could provide a ftp-upload location for that, if that helps? Of course i read this: http://wiki.xensource.com/xenwiki/XenParavirtOps But then i would have a 2.6.29 kernel and for now it would be better, if i get exact your version that is known to work...? Cheers, Florian> -----Ursprüngliche Nachricht----- > Von: xen-users-bounces@lists.xensource.com > [mailto:xen-users-bounces@lists.xensource.com] Im Auftrag von > Thomas Halinka > Gesendet: Freitag, 6. März 2009 09:35 > An: Brad Plant > Cc: xen-users@lists.xensource.com > Betreff: Re: [Xen-users] Reverse migration breaks/freezes VM > > Hi Florian, > > Full ACK to Brad, > > kick the 2.6.27-Kernel. We have some kernel-gurus in here and > they will tell you the same. Try 2.6.26 or 2.6.28 and it > should work.... > > Best regards, > > Thomas > > > Am Freitag, den 06.03.2009, 11:09 +1100 schrieb Brad Plant: > > Hi Florian, > > > > I was unable to successfully migrate VMs running a 2.6.27 > kernel. I found that the network would stop working on the > first migration and then the disk IO would stop when > migrating the machine back again (which made processes block > waiting for disk IO and therefore the machine appear to hang). > > > > Try a 2.6.28 kernel. It seems to have sorted out my issues. > > > > Cheers, > > > > Brad > > > > > > On Thu, 5 Mar 2009 14:12:56 +0100 > > "Rustedt, Florian" <Florian.Rustedt@smartnet.de> wrote: > > > > > Hello list, > > > > > > I''ve got strange phenomenons with migrations. I think it''s a bug, > > > but am not sure, so i am asking for your help to find this ou, > > > please ;) > > > > > > First the construct: > > > Two HP DL180G5(xen0,xen1) with dual-quadcore each, 8G RAM. > > > > > > On each a dom0 with selfcompiled(because of network > drivers) gentoo-sources-xen-2.6.27_amd64 and Xen 3.3.0. The > installation is completely the same (rsynct), only different > in ip and hostname. > > > > > > Both share a drbd0(v8.3.0) device. On it an lvm with one > lv per vm. > > > > > > Now what''s the problem: > > > > > > If i migrate a running vm(mx1-smartnet-de) from xen0 to > xen1, it seems to work. > > > I could do a "xm migrate mx1-smartnet-de xen1" without > any interuption while having a ssh-connection to the vm and > downloading a kernel-source in it. > > > > > > Then i did a "xm migrate mx1-smartnet-de xen0" on xen1 to > move it back again. After that, the vm freezes at 100%CPU and > that''s it! Can''t connect to it any more, whether via ssh nor > via vnc/fb or console. Only "xm destroy" could help, "xm > shutdown" has no impact. > > > > > > For debugging, i added the concerning parts of the > xend.log from each and the kernel-configs, so that you could > try to help me find the prob perhaps in the logs? > > > > > > Just after having started the vm: > > > xen0_after_start_of_vm.log > > > > > > Then after the first migration: > > > xen0_after_migrate_to_xen1_of_vm.log > > > xen1_after_migrate_to_xen1_of_vm.log > > > > > > And last, after the reverse: > > > xen0_after_migrate_back_from_xen1_of_vm.log > > > xen1_after_migrate_back_from_xen1_of_vm.log > > > > > > I don''t believe it is a drbd/lvm problem, because drbd > keeps in "0: cs:Connected ro:Primary/Primary > ds:UpToDate/UpToDate C r---" and there are no lv-concerning > log-entries in syslog. > > > > > > There are of course errors concerning "retry suspend > domain failed", but there''s no hint, WHY this has got failed? > > > > > > Kind regards, Florian > > > > ******************************************************************** > > > ************************** > > > IMPORTANT: The contents of this email and any attachments are > > > confidential. They are intended for the named recipient(s) only. > > > If you have received this email in error, please notify > the system > > > manager or the sender immediately and do not disclose the > contents to anyone or make copies thereof. > > > *** eSafe scanned this email for viruses, vandals, and malicious > > > content. *** > > > > ******************************************************************** > > > ************************** > > _______________________________________________ > > Xen-users mailing list > > Xen-users@lists.xensource.com > > http://lists.xensource.com/xen-users > > > _______________________________________________ > Xen-users mailing list > Xen-users@lists.xensource.com > http://lists.xensource.com/xen-users >********************************************************************************************** IMPORTANT: The contents of this email and any attachments are confidential. They are intended for the named recipient(s) only. If you have received this email in error, please notify the system manager or the sender immediately and do not disclose the contents to anyone or make copies thereof. *** eSafe scanned this email for viruses, vandals, and malicious content. *** ********************************************************************************************** _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Thomas Halinka
2009-Mar-06 13:38 UTC
Re: AW: [Xen-users] Reverse migration breaks/freezes VM
Hi Florian, you dont need any patches for pv_ops, just alter the kernel-config for xen. I am using 2.6.26 from lenny (with some patches), which works fine for me in Production. Running a cluster with roundabout 4500 Servers with xen and it s rock-solid ;) regards, thomas Am Freitag, den 06.03.2009, 11:56 +0100 schrieb Rustedt, Florian:> Hi Thomas, > > can you give me a hint, how i can get a complete xen-patched source-tree for 2.6.28(.xx)? > Or a xen patch-set for vanilla-sources? > Or even better, is there perhaps a way for you to give me your kernel-source tree as download? Then i''ve got exactly the same version and can be sure to exclude this topic as failure source..? > I could provide a ftp-upload location for that, if that helps? > > Of course i read this: http://wiki.xensource.com/xenwiki/XenParavirtOps > > But then i would have a 2.6.29 kernel and for now it would be better, if i get exact your version that is known to work...? > > Cheers, Florian > > > > -----Ursprüngliche Nachricht----- > > Von: xen-users-bounces@lists.xensource.com > > [mailto:xen-users-bounces@lists.xensource.com] Im Auftrag von > > Thomas Halinka > > Gesendet: Freitag, 6. März 2009 09:35 > > An: Brad Plant > > Cc: xen-users@lists.xensource.com > > Betreff: Re: [Xen-users] Reverse migration breaks/freezes VM > > > > Hi Florian, > > > > Full ACK to Brad, > > > > kick the 2.6.27-Kernel. We have some kernel-gurus in here and > > they will tell you the same. Try 2.6.26 or 2.6.28 and it > > should work.... > > > > Best regards, > > > > Thomas > > > > > > Am Freitag, den 06.03.2009, 11:09 +1100 schrieb Brad Plant: > > > Hi Florian, > > > > > > I was unable to successfully migrate VMs running a 2.6.27 > > kernel. I found that the network would stop working on the > > first migration and then the disk IO would stop when > > migrating the machine back again (which made processes block > > waiting for disk IO and therefore the machine appear to hang). > > > > > > Try a 2.6.28 kernel. It seems to have sorted out my issues. > > > > > > Cheers, > > > > > > Brad > > > > > > > > > On Thu, 5 Mar 2009 14:12:56 +0100 > > > "Rustedt, Florian" <Florian.Rustedt@smartnet.de> wrote: > > > > > > > Hello list, > > > > > > > > I''ve got strange phenomenons with migrations. I think it''s a bug, > > > > but am not sure, so i am asking for your help to find this ou, > > > > please ;) > > > > > > > > First the construct: > > > > Two HP DL180G5(xen0,xen1) with dual-quadcore each, 8G RAM. > > > > > > > > On each a dom0 with selfcompiled(because of network > > drivers) gentoo-sources-xen-2.6.27_amd64 and Xen 3.3.0. The > > installation is completely the same (rsynct), only different > > in ip and hostname. > > > > > > > > Both share a drbd0(v8.3.0) device. On it an lvm with one > > lv per vm. > > > > > > > > Now what''s the problem: > > > > > > > > If i migrate a running vm(mx1-smartnet-de) from xen0 to > > xen1, it seems to work. > > > > I could do a "xm migrate mx1-smartnet-de xen1" without > > any interuption while having a ssh-connection to the vm and > > downloading a kernel-source in it. > > > > > > > > Then i did a "xm migrate mx1-smartnet-de xen0" on xen1 to > > move it back again. After that, the vm freezes at 100%CPU and > > that''s it! Can''t connect to it any more, whether via ssh nor > > via vnc/fb or console. Only "xm destroy" could help, "xm > > shutdown" has no impact. > > > > > > > > For debugging, i added the concerning parts of the > > xend.log from each and the kernel-configs, so that you could > > try to help me find the prob perhaps in the logs? > > > > > > > > Just after having started the vm: > > > > xen0_after_start_of_vm.log > > > > > > > > Then after the first migration: > > > > xen0_after_migrate_to_xen1_of_vm.log > > > > xen1_after_migrate_to_xen1_of_vm.log > > > > > > > > And last, after the reverse: > > > > xen0_after_migrate_back_from_xen1_of_vm.log > > > > xen1_after_migrate_back_from_xen1_of_vm.log > > > > > > > > I don''t believe it is a drbd/lvm problem, because drbd > > keeps in "0: cs:Connected ro:Primary/Primary > > ds:UpToDate/UpToDate C r---" and there are no lv-concerning > > log-entries in syslog. > > > > > > > > There are of course errors concerning "retry suspend > > domain failed", but there''s no hint, WHY this has got failed? > > > > > > > > Kind regards, Florian > > > > > > ******************************************************************** > > > > ************************** > > > > IMPORTANT: The contents of this email and any attachments are > > > > confidential. They are intended for the named recipient(s) only. > > > > If you have received this email in error, please notify > > the system > > > > manager or the sender immediately and do not disclose the > > contents to anyone or make copies thereof. > > > > *** eSafe scanned this email for viruses, vandals, and malicious > > > > content. *** > > > > > > ******************************************************************** > > > > ************************** > > > _______________________________________________ > > > Xen-users mailing list > > > Xen-users@lists.xensource.com > > > http://lists.xensource.com/xen-users > > > > > > _______________________________________________ > > Xen-users mailing list > > Xen-users@lists.xensource.com > > http://lists.xensource.com/xen-users > > > ********************************************************************************************** > IMPORTANT: The contents of this email and any attachments are confidential. They are intended for the > named recipient(s) only. > If you have received this email in error, please notify the system manager or the sender immediately and do > not disclose the contents to anyone or make copies thereof. > *** eSafe scanned this email for viruses, vandals, and malicious content. *** > ********************************************************************************************** > > > _______________________________________________ > Xen-users mailing list > Xen-users@lists.xensource.com > http://lists.xensource.com/xen-users_______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Rustedt, Florian
2009-Mar-06 13:40 UTC
AW: AW: [Xen-users] Reverse migration breaks/freezes VM
> -----Ursprüngliche Nachricht----- > Von: Thomas Halinka [mailto:lists@thohal.de] > Gesendet: Freitag, 6. März 2009 14:39 > An: Rustedt, Florian > Cc: xen-users@lists.xensource.com > Betreff: Re: AW: [Xen-users] Reverse migration breaks/freezes VM > > Hi Florian, > > you dont need any patches for pv_ops, just alter the > kernel-config for xen. > > I am using 2.6.26 from lenny (with some patches), which works > fine for me in Production. > > Running a cluster with roundabout 4500 Servers with xen and > it s rock-solid ;) > > regards, > > thomas > > > > > Am Freitag, den 06.03.2009, 11:56 +0100 schrieb Rustedt, Florian: > > Hi Thomas, > > > > can you give me a hint, how i can get a complete > xen-patched source-tree for 2.6.28(.xx)? > > Or a xen patch-set for vanilla-sources? > > Or even better, is there perhaps a way for you to give me > your kernel-source tree as download? Then i've got exactly > the same version and can be sure to exclude this topic as > failure source..? > > I could provide a ftp-upload location for that, if that helps? > > > > Of course i read this: > > http://wiki.xensource.com/xenwiki/XenParavirtOps > > > > But then i would have a 2.6.29 kernel and for now it would > be better, if i get exact your version that is known to work...? > > > > Cheers, Florian > > > > > > > -----Ursprüngliche Nachricht----- > > > Von: xen-users-bounces@lists.xensource.com > > > [mailto:xen-users-bounces@lists.xensource.com] Im Auftrag > von Thomas > > > Halinka > > > Gesendet: Freitag, 6. März 2009 09:35 > > > An: Brad Plant > > > Cc: xen-users@lists.xensource.com > > > Betreff: Re: [Xen-users] Reverse migration breaks/freezes VM > > > > > > Hi Florian, > > > > > > Full ACK to Brad, > > > > > > kick the 2.6.27-Kernel. We have some kernel-gurus in here > and they > > > will tell you the same. Try 2.6.26 or 2.6.28 and it > should work.... > > > > > > Best regards, > > > > > > Thomas > > > > > > > > > Am Freitag, den 06.03.2009, 11:09 +1100 schrieb Brad Plant: > > > > Hi Florian, > > > > > > > > I was unable to successfully migrate VMs running a 2.6.27 > > > kernel. I found that the network would stop working on the first > > > migration and then the disk IO would stop when migrating > the machine > > > back again (which made processes block waiting for disk IO and > > > therefore the machine appear to hang). > > > > > > > > Try a 2.6.28 kernel. It seems to have sorted out my issues. > > > > > > > > Cheers, > > > > > > > > Brad > > > > > > > > > > > > On Thu, 5 Mar 2009 14:12:56 +0100 > > > > "Rustedt, Florian" <Florian.Rustedt@smartnet.de> wrote: > > > > > > > > > Hello list, > > > > > > > > > > I've got strange phenomenons with migrations. I think it's a > > > > > bug, but am not sure, so i am asking for your help to > find this > > > > > ou, please ;) > > > > > > > > > > First the construct: > > > > > Two HP DL180G5(xen0,xen1) with dual-quadcore each, 8G RAM. > > > > > > > > > > On each a dom0 with selfcompiled(because of network > > > drivers) gentoo-sources-xen-2.6.27_amd64 and Xen 3.3.0. The > > > installation is completely the same (rsynct), only > different in ip > > > and hostname. > > > > > > > > > > Both share a drbd0(v8.3.0) device. On it an lvm with one > > > lv per vm. > > > > > > > > > > Now what's the problem: > > > > > > > > > > If i migrate a running vm(mx1-smartnet-de) from xen0 to > > > xen1, it seems to work. > > > > > I could do a "xm migrate mx1-smartnet-de xen1" without > > > any interuption while having a ssh-connection to the vm and > > > downloading a kernel-source in it. > > > > > > > > > > Then i did a "xm migrate mx1-smartnet-de xen0" on xen1 to > > > move it back again. After that, the vm freezes at 100%CPU > and that's > > > it! Can't connect to it any more, whether via ssh nor via > vnc/fb or > > > console. Only "xm destroy" could help, "xm shutdown" has > no impact. > > > > > > > > > > For debugging, i added the concerning parts of the > > > xend.log from each and the kernel-configs, so that you > could try to > > > help me find the prob perhaps in the logs? > > > > > > > > > > Just after having started the vm: > > > > > xen0_after_start_of_vm.log > > > > > > > > > > Then after the first migration: > > > > > xen0_after_migrate_to_xen1_of_vm.log > > > > > xen1_after_migrate_to_xen1_of_vm.log > > > > > > > > > > And last, after the reverse: > > > > > xen0_after_migrate_back_from_xen1_of_vm.log > > > > > xen1_after_migrate_back_from_xen1_of_vm.log > > > > > > > > > > I don't believe it is a drbd/lvm problem, because drbd > > > keeps in "0: cs:Connected ro:Primary/Primary > ds:UpToDate/UpToDate C > > > r---" and there are no lv-concerning log-entries in syslog. > > > > > > > > > > There are of course errors concerning "retry suspend > > > domain failed", but there's no hint, WHY this has got failed? > > > > > > > > > > Kind regards, Florian > > > > > > > > > ******************************************************************** > > > > > ************************** > > > > > IMPORTANT: The contents of this email and any attachments are > > > > > confidential. They are intended for the named > recipient(s) only. > > > > > If you have received this email in error, please notify > > > the system > > > > > manager or the sender immediately and do not disclose the > > > contents to anyone or make copies thereof. > > > > > *** eSafe scanned this email for viruses, vandals, > and malicious > > > > > content. *** > > > > > > > > > ******************************************************************** > > > > > ************************** > > > > _______________________________________________ > > > > Xen-users mailing list > > > > Xen-users@lists.xensource.com > > > > http://lists.xensource.com/xen-users > > > > > > > > > _______________________________________________ > > > Xen-users mailing list > > > Xen-users@lists.xensource.com > > > http://lists.xensource.com/xen-users > > > > > > ********************************************************************** > > ************************ > > IMPORTANT: The contents of this email and any attachments are > > confidential. They are intended for the named recipient(s) only. > > If you have received this email in error, please notify the system > > manager or the sender immediately and do not disclose the > contents to anyone or make copies thereof. > > *** eSafe scanned this email for viruses, vandals, and malicious > > content. *** > > > ********************************************************************** > > ************************ > > > > > > _______________________________________________ > > Xen-users mailing list > > Xen-users@lists.xensource.com > > http://lists.xensource.com/xen-users > >********************************************************************************************** IMPORTANT: The contents of this email and any attachments are confidential. They are intended for the named recipient(s) only. If you have received this email in error, please notify the system manager or the sender immediately and do not disclose the contents to anyone or make copies thereof. *** eSafe scanned this email for viruses, vandals, and malicious content. *** ********************************************************************************************** _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Rustedt, Florian
2009-Mar-06 13:41 UTC
AW: AW: [Xen-users] Reverse migration breaks/freezes VM
Could you please, please be so kind to zip the plain sources for me? As mentioned, if you want, i could provide an ftp-dir for that?> -----Ursprüngliche Nachricht----- > Von: Thomas Halinka [mailto:lists@thohal.de] > Gesendet: Freitag, 6. März 2009 14:39 > An: Rustedt, Florian > Cc: xen-users@lists.xensource.com > Betreff: Re: AW: [Xen-users] Reverse migration breaks/freezes VM > > Hi Florian, > > you dont need any patches for pv_ops, just alter the > kernel-config for xen. > > I am using 2.6.26 from lenny (with some patches), which works > fine for me in Production. > > Running a cluster with roundabout 4500 Servers with xen and > it s rock-solid ;) > > regards, > > thomas > > > > > Am Freitag, den 06.03.2009, 11:56 +0100 schrieb Rustedt, Florian: > > Hi Thomas, > > > > can you give me a hint, how i can get a complete > xen-patched source-tree for 2.6.28(.xx)? > > Or a xen patch-set for vanilla-sources? > > Or even better, is there perhaps a way for you to give me > your kernel-source tree as download? Then i've got exactly > the same version and can be sure to exclude this topic as > failure source..? > > I could provide a ftp-upload location for that, if that helps? > > > > Of course i read this: > > http://wiki.xensource.com/xenwiki/XenParavirtOps > > > > But then i would have a 2.6.29 kernel and for now it would > be better, if i get exact your version that is known to work...? > > > > Cheers, Florian > > > > > > > -----Ursprüngliche Nachricht----- > > > Von: xen-users-bounces@lists.xensource.com > > > [mailto:xen-users-bounces@lists.xensource.com] Im Auftrag > von Thomas > > > Halinka > > > Gesendet: Freitag, 6. März 2009 09:35 > > > An: Brad Plant > > > Cc: xen-users@lists.xensource.com > > > Betreff: Re: [Xen-users] Reverse migration breaks/freezes VM > > > > > > Hi Florian, > > > > > > Full ACK to Brad, > > > > > > kick the 2.6.27-Kernel. We have some kernel-gurus in here > and they > > > will tell you the same. Try 2.6.26 or 2.6.28 and it > should work.... > > > > > > Best regards, > > > > > > Thomas > > > > > > > > > Am Freitag, den 06.03.2009, 11:09 +1100 schrieb Brad Plant: > > > > Hi Florian, > > > > > > > > I was unable to successfully migrate VMs running a 2.6.27 > > > kernel. I found that the network would stop working on the first > > > migration and then the disk IO would stop when migrating > the machine > > > back again (which made processes block waiting for disk IO and > > > therefore the machine appear to hang). > > > > > > > > Try a 2.6.28 kernel. It seems to have sorted out my issues. > > > > > > > > Cheers, > > > > > > > > Brad > > > > > > > > > > > > On Thu, 5 Mar 2009 14:12:56 +0100 > > > > "Rustedt, Florian" <Florian.Rustedt@smartnet.de> wrote: > > > > > > > > > Hello list, > > > > > > > > > > I've got strange phenomenons with migrations. I think it's a > > > > > bug, but am not sure, so i am asking for your help to > find this > > > > > ou, please ;) > > > > > > > > > > First the construct: > > > > > Two HP DL180G5(xen0,xen1) with dual-quadcore each, 8G RAM. > > > > > > > > > > On each a dom0 with selfcompiled(because of network > > > drivers) gentoo-sources-xen-2.6.27_amd64 and Xen 3.3.0. The > > > installation is completely the same (rsynct), only > different in ip > > > and hostname. > > > > > > > > > > Both share a drbd0(v8.3.0) device. On it an lvm with one > > > lv per vm. > > > > > > > > > > Now what's the problem: > > > > > > > > > > If i migrate a running vm(mx1-smartnet-de) from xen0 to > > > xen1, it seems to work. > > > > > I could do a "xm migrate mx1-smartnet-de xen1" without > > > any interuption while having a ssh-connection to the vm and > > > downloading a kernel-source in it. > > > > > > > > > > Then i did a "xm migrate mx1-smartnet-de xen0" on xen1 to > > > move it back again. After that, the vm freezes at 100%CPU > and that's > > > it! Can't connect to it any more, whether via ssh nor via > vnc/fb or > > > console. Only "xm destroy" could help, "xm shutdown" has > no impact. > > > > > > > > > > For debugging, i added the concerning parts of the > > > xend.log from each and the kernel-configs, so that you > could try to > > > help me find the prob perhaps in the logs? > > > > > > > > > > Just after having started the vm: > > > > > xen0_after_start_of_vm.log > > > > > > > > > > Then after the first migration: > > > > > xen0_after_migrate_to_xen1_of_vm.log > > > > > xen1_after_migrate_to_xen1_of_vm.log > > > > > > > > > > And last, after the reverse: > > > > > xen0_after_migrate_back_from_xen1_of_vm.log > > > > > xen1_after_migrate_back_from_xen1_of_vm.log > > > > > > > > > > I don't believe it is a drbd/lvm problem, because drbd > > > keeps in "0: cs:Connected ro:Primary/Primary > ds:UpToDate/UpToDate C > > > r---" and there are no lv-concerning log-entries in syslog. > > > > > > > > > > There are of course errors concerning "retry suspend > > > domain failed", but there's no hint, WHY this has got failed? > > > > > > > > > > Kind regards, Florian > > > > > > > > > ******************************************************************** > > > > > ************************** > > > > > IMPORTANT: The contents of this email and any attachments are > > > > > confidential. They are intended for the named > recipient(s) only. > > > > > If you have received this email in error, please notify > > > the system > > > > > manager or the sender immediately and do not disclose the > > > contents to anyone or make copies thereof. > > > > > *** eSafe scanned this email for viruses, vandals, > and malicious > > > > > content. *** > > > > > > > > > ******************************************************************** > > > > > ************************** > > > > _______________________________________________ > > > > Xen-users mailing list > > > > Xen-users@lists.xensource.com > > > > http://lists.xensource.com/xen-users > > > > > > > > > _______________________________________________ > > > Xen-users mailing list > > > Xen-users@lists.xensource.com > > > http://lists.xensource.com/xen-users > > > > > > ********************************************************************** > > ************************ > > IMPORTANT: The contents of this email and any attachments are > > confidential. They are intended for the named recipient(s) only. > > If you have received this email in error, please notify the system > > manager or the sender immediately and do not disclose the > contents to anyone or make copies thereof. > > *** eSafe scanned this email for viruses, vandals, and malicious > > content. *** > > > ********************************************************************** > > ************************ > > > > > > _______________________________________________ > > Xen-users mailing list > > Xen-users@lists.xensource.com > > http://lists.xensource.com/xen-users > >********************************************************************************************** IMPORTANT: The contents of this email and any attachments are confidential. They are intended for the named recipient(s) only. If you have received this email in error, please notify the system manager or the sender immediately and do not disclose the contents to anyone or make copies thereof. *** eSafe scanned this email for viruses, vandals, and malicious content. *** ********************************************************************************************** _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users
Rustedt, Florian
2009-Mar-10 14:55 UTC
AW: [Xen-users] Reverse migration breaks/freezes VM
Hello Horacio, unfortunately, this wasn't the reason in my case. The Xenstore did delete the uid as wished, i had no left-over-uid in the "moving-from" domain. So i keep on beeing stuck to the "how do i get a working kernel" problem until now, searching for a stable xen-kernel >2.6.21 that is not from SLES... Cheers, Florian ________________________________ Von: horacio ibrahim [mailto:horacioibrahim@gmail.com] Gesendet: Freitag, 6. März 2009 12:52 An: Rustedt, Florian Betreff: Re: [Xen-users] Reverse migration breaks/freezes VM Florian, when you make migration the entries in xenstore are not clean. After migrate: VM1/XEN0 for XEN1 the /vm/UUID of VM1 remains in Xen0. (Steps) 1 - XEN0 - UUID(VM1) = qwert1234 (for to see xenstore-list /vm) After migrate 2- XEN1 - UUID(VM1 - identical as of UUID VM1 XEN0) = qwert1234 "when move it back again" 3 - Yet exists UUID in xen0 Then remove the UUID with # xenstore-rm /vm/$VMUUID. More details.... Before migrate [root@xen0 bin]# xenstore-list /vm 00000000-0000-0000-0000-000000000000 4aa111c0-003a-625c-0b0d-02a42bd83b43 Before migrate [root@xen1 bin]# xenstore-list /vm 00000000-0000-0000-0000-000000000000 After migrate [root@xen1 bin]# xenstore-list /vm 00000000-0000-0000-0000-000000000000 4aa111c0-003a-625c-0b0d-02a42bd83b43 "when move it back again" [root@xen0 bin]# xenstore-list /vm 00000000-0000-0000-0000-000000000000 4aa111c0-003a-625c-0b0d-02a42bd83b43 <---- yet exists Here worked. Regards, Horacio Ibrahim. On Fri, Mar 6, 2009 at 7:56 AM, Rustedt, Florian <Florian.Rustedt@smartnet.de> wrote: Hi Thomas, can you give me a hint, how i can get a complete xen-patched source-tree for 2.6.28(.xx)? Or a xen patch-set for vanilla-sources? Or even better, is there perhaps a way for you to give me your kernel-source tree as download? Then i've got exactly the same version and can be sure to exclude this topic as failure source..? I could provide a ftp-upload location for that, if that helps? Of course i read this: http://wiki.xensource.com/xenwiki/XenParavirtOps But then i would have a 2.6.29 kernel and for now it would be better, if i get exact your version that is known to work...? Cheers, Florian > -----Ursprüngliche Nachricht----- > Von: xen-users-bounces@lists.xensource.com > [mailto:xen-users-bounces@lists.xensource.com] Im Auftrag von > Thomas Halinka > Gesendet: Freitag, 6. März 2009 09:35 > An: Brad Plant > Cc: xen-users@lists.xensource.com > Betreff: Re: [Xen-users] Reverse migration breaks/freezes VM > > Hi Florian, > > Full ACK to Brad, > > kick the 2.6.27-Kernel. We have some kernel-gurus in here and > they will tell you the same. Try 2.6.26 or 2.6.28 and it > should work.... > > Best regards, > > Thomas > > > Am Freitag, den 06.03.2009, 11:09 +1100 schrieb Brad Plant: > > Hi Florian, > > > > I was unable to successfully migrate VMs running a 2.6.27 > kernel. I found that the network would stop working on the > first migration and then the disk IO would stop when > migrating the machine back again (which made processes block > waiting for disk IO and therefore the machine appear to hang). > > > > Try a 2.6.28 kernel. It seems to have sorted out my issues. > > > > Cheers, > > > > Brad > > > > > > On Thu, 5 Mar 2009 14:12:56 +0100 > > "Rustedt, Florian" <Florian.Rustedt@smartnet.de> wrote: > > > > > Hello list, > > > > > > I've got strange phenomenons with migrations. I think it's a bug, > > > but am not sure, so i am asking for your help to find this ou, > > > please ;) > > > > > > First the construct: > > > Two HP DL180G5(xen0,xen1) with dual-quadcore each, 8G RAM. > > > > > > On each a dom0 with selfcompiled(because of network > drivers) gentoo-sources-xen-2.6.27_amd64 and Xen 3.3.0. The > installation is completely the same (rsynct), only different > in ip and hostname. > > > > > > Both share a drbd0(v8.3.0) device. On it an lvm with one > lv per vm. > > > > > > Now what's the problem: > > > > > > If i migrate a running vm(mx1-smartnet-de) from xen0 to > xen1, it seems to work. > > > I could do a "xm migrate mx1-smartnet-de xen1" without > any interuption while having a ssh-connection to the vm and > downloading a kernel-source in it. > > > > > > Then i did a "xm migrate mx1-smartnet-de xen0" on xen1 to > move it back again. After that, the vm freezes at 100%CPU and > that's it! Can't connect to it any more, whether via ssh nor > via vnc/fb or console. Only "xm destroy" could help, "xm > shutdown" has no impact. > > > > > > For debugging, i added the concerning parts of the > xend.log from each and the kernel-configs, so that you could > try to help me find the prob perhaps in the logs? > > > > > > Just after having started the vm: > > > xen0_after_start_of_vm.log > > > > > > Then after the first migration: > > > xen0_after_migrate_to_xen1_of_vm.log > > > xen1_after_migrate_to_xen1_of_vm.log > > > > > > And last, after the reverse: > > > xen0_after_migrate_back_from_xen1_of_vm.log > > > xen1_after_migrate_back_from_xen1_of_vm.log > > > > > > I don't believe it is a drbd/lvm problem, because drbd > keeps in "0: cs:Connected ro:Primary/Primary > ds:UpToDate/UpToDate C r---" and there are no lv-concerning > log-entries in syslog. > > > > > > There are of course errors concerning "retry suspend > domain failed", but there's no hint, WHY this has got failed? > > > > > > Kind regards, Florian > > > > ******************************************************************** > > > ************************** > > > IMPORTANT: The contents of this email and any attachments are > > > confidential. They are intended for the named recipient(s) only. > > > If you have received this email in error, please notify > the system > > > manager or the sender immediately and do not disclose the > contents to anyone or make copies thereof. > > > *** eSafe scanned this email for viruses, vandals, and malicious > > > content. *** > > > > ******************************************************************** > > > ************************** > > _______________________________________________ > > Xen-users mailing list > > Xen-users@lists.xensource.com > > http://lists.xensource.com/xen-users > > > _______________________________________________ > Xen-users mailing list > Xen-users@lists.xensource.com > http://lists.xensource.com/xen-users > ********************************************************************************************** IMPORTANT: The contents of this email and any attachments are confidential. They are intended for the named recipient(s) only. If you have received this email in error, please notify the system manager or the sender immediately and do not disclose the contents to anyone or make copies thereof. *** eSafe scanned this email for viruses, vandals, and malicious content. *** ********************************************************************************************** _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users -- ITIL: “An industry accepted way of doing something, that works” (Aidan Lawes) ********************************************************************************************** IMPORTANT: The contents of this email and any attachments are confidential. They are intended for the named recipient(s) only. If you have received this email in error, please notify the system manager or the sender immediately and do not disclose the contents to anyone or make copies thereof. *** eSafe scanned this email for viruses, vandals, and malicious content. *** ********************************************************************************************** _______________________________________________ Xen-users mailing list Xen-users@lists.xensource.com http://lists.xensource.com/xen-users