Re: [pve-devel] Crashing debian wheezy guests after migration
Am 21.12.2014 08:30, schrieb Alexandre DERUMIER: Hi Stefan, I'm also manage a lot of wheezy guest (maybe 400-500 vms), but don't use stock 3.2 kernel. I'm using custom 3.7 kernel without problem, but also 3.14 and 3.16 kernel from wheezy backports. I never had screen frozen or black after migration. Yes the problem only occours with 3.2 kernel. But i'm not able to reproduce it with Qemu 2.2.0 so i upgraded my systems to latest PVE code. May be it is related to this code: http://git.qemu.org/?p=qemu.git;a=commit;h=a096b3a6732f846ec57dc28b47ee9435aa0609bf Stefan - Mail original - De: Stefan Priebe s.pri...@profihost.ag À: pve-devel pve-devel@pve.proxmox.com Envoyé: Vendredi 19 Décembre 2014 19:10:50 Objet: [pve-devel] Crashing debian wheezy guests after migration Hi, While running plain Debian wheezy as a guest I've seen 95% of the guests crashes after migration. (Screen frozen or black) I do not see this with Debian Jessie or windows. Does anybody know a workaround or solution? I have no control about the guests so I need a qemu or host based solution ;-) Greets, Stefan ___ pve-devel mailing list pve-devel@pve.proxmox.com http://pve.proxmox.com/cgi-bin/mailman/listinfo/pve-devel ___ pve-devel mailing list pve-devel@pve.proxmox.com http://pve.proxmox.com/cgi-bin/mailman/listinfo/pve-devel
Re: [pve-devel] Crashing debian wheezy guests after migration
On Sun, 21 Dec 2014 21:13:01 +0100 Stefan Priebe s.pri...@profihost.ag wrote: May be it is related to this code: http://git.qemu.org/?p=qemu.git;a=commit;h=a096b3a6732f846ec57dc28b47ee9435aa0609bf I see this happen now and then but it has never caused a crash. Experienced this with: - Debian Wheezy and Ubuntu server 10.04 and 12.04 - FreeBSD 8.x - 10.x - Omnios 151008 - 151012 - CentOS 5,6,7 and RHEL 5,6,7 -- Hilsen/Regards Michael Rasmussen Get my public GnuPG keys: michael at rasmussen dot cc http://pgp.mit.edu:11371/pks/lookup?op=getsearch=0xD3C9A00E mir at datanom dot net http://pgp.mit.edu:11371/pks/lookup?op=getsearch=0xE501F51C mir at miras dot org http://pgp.mit.edu:11371/pks/lookup?op=getsearch=0xE3E80917 -- /usr/games/fortune -es says: Sorry, no fortune this time. pgpqvqAcysgdr.pgp Description: OpenPGP digital signature ___ pve-devel mailing list pve-devel@pve.proxmox.com http://pve.proxmox.com/cgi-bin/mailman/listinfo/pve-devel
Re: [pve-devel] Crashing debian wheezy guests after migration
Am 21.12.2014 um 22:51 schrieb Michael Rasmussen: On Sun, 21 Dec 2014 21:13:01 +0100 Stefan Priebe s.pri...@profihost.ag wrote: May be it is related to this code: http://git.qemu.org/?p=qemu.git;a=commit;h=a096b3a6732f846ec57dc28b47ee9435aa0609bf I see this happen now and then but it has never caused a crash. Experienced this with: - Debian Wheezy and Ubuntu server 10.04 and 12.04 - FreeBSD 8.x - 10.x - Omnios 151008 - 151012 - CentOS 5,6,7 and RHEL 5,6,7 I only saw this on Debian Wheezy with 3.2 Kernel and only after migration. But it'S fixed with qemu 2.2.0 this indicates it was a qemu bug or a qemu and a kernel bug. Stefan ___ pve-devel mailing list pve-devel@pve.proxmox.com http://pve.proxmox.com/cgi-bin/mailman/listinfo/pve-devel
Re: [pve-devel] Crashing debian wheezy guests after migration
Hi Stefan, I'm also manage a lot of wheezy guest (maybe 400-500 vms), but don't use stock 3.2 kernel. I'm using custom 3.7 kernel without problem, but also 3.14 and 3.16 kernel from wheezy backports. I never had screen frozen or black after migration. - Mail original - De: Stefan Priebe s.pri...@profihost.ag À: pve-devel pve-devel@pve.proxmox.com Envoyé: Vendredi 19 Décembre 2014 19:10:50 Objet: [pve-devel] Crashing debian wheezy guests after migration Hi, While running plain Debian wheezy as a guest I've seen 95% of the guests crashes after migration. (Screen frozen or black) I do not see this with Debian Jessie or windows. Does anybody know a workaround or solution? I have no control about the guests so I need a qemu or host based solution ;-) Greets, Stefan ___ pve-devel mailing list pve-devel@pve.proxmox.com http://pve.proxmox.com/cgi-bin/mailman/listinfo/pve-devel ___ pve-devel mailing list pve-devel@pve.proxmox.com http://pve.proxmox.com/cgi-bin/mailman/listinfo/pve-devel
[pve-devel] Crashing debian wheezy guests after migration
Hi, While running plain Debian wheezy as a guest I've seen 95% of the guests crashes after migration. (Screen frozen or black) I do not see this with Debian Jessie or windows. Does anybody know a workaround or solution? I have no control about the guests so I need a qemu or host based solution ;-) Greets, Stefan ___ pve-devel mailing list pve-devel@pve.proxmox.com http://pve.proxmox.com/cgi-bin/mailman/listinfo/pve-devel
Re: [pve-devel] Crashing debian wheezy guests after migration
On Fri, 19 Dec 2014 19:10:50 +0100 Stefan Priebe - Profihost AG s.pri...@profihost.ag wrote: Hi, While running plain Debian wheezy as a guest I've seen 95% of the guests crashes after migration. (Screen frozen or black) I do not see this with Debian Jessie or windows. Does anybody know a workaround or solution? I have no control about the guests so I need a qemu or host based solution ;-) All my Debian servers are running wheezy and none of them has ever crashed due to migration. What are the typical specs for a Debian wheezy which crashes when migrating? What are the specs of the Proxmox nodes? Does is happen regardless of source and destination node? -- Hilsen/Regards Michael Rasmussen Get my public GnuPG keys: michael at rasmussen dot cc http://pgp.mit.edu:11371/pks/lookup?op=getsearch=0xD3C9A00E mir at datanom dot net http://pgp.mit.edu:11371/pks/lookup?op=getsearch=0xE501F51C mir at miras dot org http://pgp.mit.edu:11371/pks/lookup?op=getsearch=0xE3E80917 -- /usr/games/fortune -es says: Hegel was right when he said that we learn from history that man can never learn anything from history. -George Bernard Shaw pgpGMryHuSU9u.pgp Description: OpenPGP digital signature ___ pve-devel mailing list pve-devel@pve.proxmox.com http://pve.proxmox.com/cgi-bin/mailman/listinfo/pve-devel
Re: [pve-devel] Crashing debian wheezy guests after migration
On Fri, 19 Dec 2014 19:22:17 +0100 Michael Rasmussen m...@datanom.net wrote: All my Debian servers are running wheezy and none of them has ever crashed due to migration. Adding to above: I have extended the Unix philosophy to servers as well like this. On a server I only have one service which does it well, or perhaps 2 or 3 if the services is tightly coupled. In this way, except for a few, all my servers has specs like this: CPU: 1 - 4 RAM: 1 - 4 GB Disks: 1 - 2 (Either one 16 - 24 GB or one 8 GB and one 20 - 30 GB). A few which needs a lot of space has a second disk 200 - 500 GB. Requirements larger than that will be a disk directly from NAS|SAN either as block device or as shared storage through NFS. Above means fast migration, fast snapshot, and fast backup for most. -- Hilsen/Regards Michael Rasmussen Get my public GnuPG keys: michael at rasmussen dot cc http://pgp.mit.edu:11371/pks/lookup?op=getsearch=0xD3C9A00E mir at datanom dot net http://pgp.mit.edu:11371/pks/lookup?op=getsearch=0xE501F51C mir at miras dot org http://pgp.mit.edu:11371/pks/lookup?op=getsearch=0xE3E80917 -- /usr/games/fortune -es says: Hegel was right when he said that we learn from history that man can never learn anything from history. -George Bernard Shaw pgpM8wYCY0n2F.pgp Description: OpenPGP digital signature ___ pve-devel mailing list pve-devel@pve.proxmox.com http://pve.proxmox.com/cgi-bin/mailman/listinfo/pve-devel
Re: [pve-devel] Crashing debian wheezy guests after migration
Am 19.12.2014 19:22, schrieb Michael Rasmussen: On Fri, 19 Dec 2014 19:10:50 +0100 Stefan Priebe - Profihost AG s.pri...@profihost.ag wrote: Hi, While running plain Debian wheezy as a guest I've seen 95% of the guests crashes after migration. (Screen frozen or black) I do not see this with Debian Jessie or windows. Does anybody know a workaround or solution? I have no control about the guests so I need a qemu or host based solution ;-) All my Debian servers are running wheezy and none of them has ever crashed due to migration. OK - nice to hear this. I'm still on qemu 2.1.2 - have you already upgraded to 2.2.0? What are the typical specs for a Debian wheezy which crashes when migrating? 2x Virtio - Network 1x Virtio Disk using RBD / Ceph 2 Cores What are the specs of the Proxmox nodes? Host is Dual E5-2695 v2 running 3.10.63 kernel. Does is happen regardless of source and destination node? Yes, so it seems to be related to the guest kernel 3.2 as all other guests or other kernels in guest work fine. I was thinking about a clocksource problem. Newer kernels are using tsc as clock source but debian wheezy uses per default kvm-clock. (/sys/devices/system/clocksource/clocksource0/current_clocksource) Stefan ___ pve-devel mailing list pve-devel@pve.proxmox.com http://pve.proxmox.com/cgi-bin/mailman/listinfo/pve-devel ___ pve-devel mailing list pve-devel@pve.proxmox.com http://pve.proxmox.com/cgi-bin/mailman/listinfo/pve-devel
Re: [pve-devel] Crashing debian wheezy guests after migration
On Fri, 19 Dec 2014 20:02:29 +0100 Stefan Priebe s.pri...@profihost.ag wrote: OK - nice to hear this. I'm still on qemu 2.1.2 - have you already upgraded to 2.2.0? pve-qemu-kvm: 2.1-10 Host is Dual E5-2695 v2 running 3.10.63 kernel. I am on 2.6.32 kernel. (/sys/devices/system/clocksource/clocksource0/current_clocksource) All mine uses kvm-clock but: cat /sys/devices/system/clocksource/clocksource0/available_clocksource kvm-clock hpet acpi_pm Have you tried one of the others? -- Hilsen/Regards Michael Rasmussen Get my public GnuPG keys: michael at rasmussen dot cc http://pgp.mit.edu:11371/pks/lookup?op=getsearch=0xD3C9A00E mir at datanom dot net http://pgp.mit.edu:11371/pks/lookup?op=getsearch=0xE501F51C mir at miras dot org http://pgp.mit.edu:11371/pks/lookup?op=getsearch=0xE3E80917 -- /usr/games/fortune -es says: Debian Hint #37: Want to download a package without installing it? Use 'aptitude download pkgname'. pgp7QGNhjz6GP.pgp Description: OpenPGP digital signature ___ pve-devel mailing list pve-devel@pve.proxmox.com http://pve.proxmox.com/cgi-bin/mailman/listinfo/pve-devel
