Re: [CentOS-virt] Machine freeze

2009-05-05 Thread Mathew S. McCarrell
So, I guess this wasn't just a hardware issue. I actually had another system crash. This only appears to happen when I'm issuing xm commands over and over. Any thoughts? Thanks, Matt -- Mathew S. McCarrell Clarkson University '10 mccar...@gmail.com mccar...@clarkson.edu On Thu, Apr 30,

Re: [CentOS-virt] Machine freeze

2009-04-30 Thread Karanbir Singh
Mathew S. McCarrell wrote: Well, I'm actually not using a PAExen kernel but I don't believe that I need to be since I'm running the 64-bit version of CentOS. Am I mistaken in that assumption? Matthew, you are right. Also, the idea of running a PAE kernel on CentOS is non relevant --

Re: [CentOS-virt] Machine freeze

2009-04-30 Thread Ljubomir Ljubojevic
Karanbir, can you please, in short, explain to me current status of 64-bit CentOS compared to i386? Is it's maturity same as of i386? I started to actively use CentOS when 4.2 was last version. My decision to use i386-only was based on issues with some (or many?) drivers like madwifi for

Re: [CentOS-virt] Machine freeze

2009-04-30 Thread Mathew S. McCarrell
I've discovered what the issue is. The machine is rebooting when a sector error occurs on one of the drives that is part of a software RAID where the VMs are currently being stored. Thanks for the help though. Matt -- Mathew S. McCarrell Clarkson University '10 mccar...@gmail.com

Re: [CentOS-virt] Machine freeze

2009-04-29 Thread Mathew S. McCarrell
Hey, I'm wondering if it is possible that your problem is related to mine. Earlier today I had to restart one of our domUs on one of our systems. I used xm shutdown instead of xm destroy and then did xm list to determine if the domU had shutdown or not. Upon issuing xm list a second time, the

Re: [CentOS-virt] Machine freeze

2009-04-29 Thread Maros Timko
Hi Mathew, I would say no. Our system has freezed completely, it did not reboot. Our issue was caused by concurrent access to scheduler method that created a deadlock.I can see some out of memory messages, do you still have enough memory for Dom0? 2009/4/29 Mathew S. McCarrell mccar...@gmail.com

Re: [CentOS-virt] Machine freeze

2009-04-29 Thread Mathew S. McCarrell
Yeah, the Dom0 should have plenty of memory left since only 2-3 GB of memory is being used out of 12 GB installed. The out of memory messages were from the domU that I xm consoled into prior to shutting down that particular VM because it was out of memory. Matt -- Mathew S. McCarrell Clarkson

Re: [CentOS-virt] Machine freeze

2009-04-03 Thread Maros Timko
Yes, mem and disk check was also our first thing to do. But it happened on different machines (1950s and 2950s), different BIOS versions and number of NICs. The freeze situation is unrecoverable - machine replies to pings, but did not write anything to console. You cannot SSH to it, the only