On Sun, 11 Dec 2011, Arie Skliarouk wrote: >> >> When I tried to restart the vserver, it did not came up. Long story short, >> I found that lxc-destroy did not destroy the cgroup of the same name as the >> server. The cgroup remains visible in the /sys/fs/cgroup/cpu/master >> directory. The tasks file is empty though. >> >> I had to rename the container to be able to start it. >> > > About 18 hours after the event, the physical machine locked up hard. > Without any message in dmesg or on its console. Before that, the machine > worked pretty hard for about 60 days without a hitch.
Ouch. And oddly enough, I had a hard-lockup a few days ago myself that needed a power cycle. > My gut feeling is that it is related to the stale cgroup somehow. > > Out of curiosity, what kernel are you running? I'm on 2.6.35, but looking >> at some of the later ones now... > > I use kernel 3.0.0-12-server amd64 as packaged in the ubuntu 11.10. I had > problems with earlier kernels as they locked up the machine every week or > so. My base is Debian Stable, but I custom compile the kernels to match hardware. I've put the latest & greatest on a test server to see how it fares - so-far so good, but there's no real load on it. I think it would be good for more people to start to post their experiences with LXC though - who knows how many people are using it - any "big" companies using it in anger (as opposed to KVM, XEN, etc.) and so on. (or small companies with big installations!) I have 2 areas of application for it - one is hosted Asterisk PBXs, and for that it seems to work really well, but the run-time environment is very carefully controlled - it basically runs sendmail, sshd, apache+php and asterisk and nothing else. The other application I use them for it more of a management side - for running general purpose LAMP servers in - mostly to make sure I can relatively quickly move an image from one server to another to cover hardware issues or temporarily/permanent increase (or reduction!) in avalable resources... I don't consider my own use "big" by any means at all though.. Gordon ------------------------------------------------------------------------------ Learn Windows Azure Live! Tuesday, Dec 13, 2011 Microsoft is holding a special Learn Windows Azure training event for developers. It will provide a great way to learn Windows Azure and what it provides. You can attend the event by watching it streamed LIVE online. Learn more at http://p.sf.net/sfu/ms-windowsazure _______________________________________________ Lxc-users mailing list Lxc-users@lists.sourceforge.net https://lists.sourceforge.net/lists/listinfo/lxc-users
