Just tried a ubuntu 15.10 host, and at first glance, it gives ubuntu 15.10 *and* ubuntu 12.04 guests sufficient semaphores right from the start, so I don't need to do anything.
Ubuntu 14.04 is dead, long live Ubuntu 15.10 :-) Um, well, actually, 14.04 isn't dead yet. Is something missing from backports? Could we get this goodness on 14.04? - Dan On Fri, Dec 11, 2015 at 9:15 AM, Dan Kegel <d...@kegel.com> wrote: > Alas, it was the lack of coffee, or wishful thinking. I must have > been typing in the wrong terminal. > > I guess my next step is to try this on an ubuntu 15.10 host and see if > everything just works there. > - Dan > > On Fri, Dec 11, 2015 at 8:10 AM, Dan Kegel <d...@kegel.com> wrote: >> I did, but it was a slightly older version from the ppa. >> >> Updating lxc and lxcfs to the one in trusty-backports, and then >> creating a new container, seems to have helped! >> >> $ apt-cache policy lxcfs >> lxcfs: >> Installed: 0.11-0ubuntu3~ubuntu14.04.1 >> $ sudo lxc-create -t download -n ubu1510-x -- --dist ubuntu --release >> wily --arch amd64 >> ... >> $ cat /proc/sys/kernel/sem >> 250 65536 32 32768 >> $ ssh ubu1510-x >> $ cat /proc/sys/kernel/sem >> 250 65536 32 32768 >> >> I haven't figured out how to endow an old container with higher sem >> settings yet... >> diff on the config files and etc didn't immediately illuminate the >> way, as the old container's a bit dirty. >> But I can live with recreating them. >> >> Let's hope I'm not just short on coffee this morning, and this really >> did fix the problem :-) >> - Dan >> >> On Thu, Dec 10, 2015 at 11:09 PM, Fajar A. Nugraha <l...@fajar.net> wrote: >>> On Fri, Dec 11, 2015 at 12:20 PM, Dan Kegel <d...@kegel.com> wrote: >>>> >>>> Came back to this because it hit me again (14.04 host, 15.10 guest this >>>> time). >>>> I actually don't need to be able to write to /proc/sys/kernel/sem >>>> from inside the container; I just need its limits to be high enough. >>>> >>>> $ uname -a >>>> Linux dank-desktop 3.13.0-66-generic #108-Ubuntu SMP Wed Oct 7 >>>> 15:20:27 UTC 2015 x86_64 x86_64 x86_64 GNU/Linux >>>> >>>> $ apt-cache policy lxc >>>> lxc: >>>> Installed: 1.1.5-0ubuntu3~ubuntu14.04.1 >>>> >>>> Looks like at one point, inside was going to inherit from outside: >>>> http://lists.linuxfoundation.org/pipermail/containers/2014-May/034544.html >>>> but that doesn't seem to be happening here: >>>> >>>> $ cat /proc/sys/kernel/sem >>>> 250 65536 32 32768 >>>> $ sudo lxc-start -n foo >>>> $ ssh foo >>>> $ cat /proc/sys/kernel/sem >>>> 250 32000 32 128 >>>> >>> >>> >>> Do you have lxcfs installed? At least my installation has high-enough limit >>> without me having to do anything. >>> >>> dev ~ # cat /proc/sys/kernel/sem >>> 32000 1024000000 500 32000 >>> dev ~ # lxc-attach -n app01 -- cat /proc/sys/kernel/sem >>> 32000 1024000000 500 32000 >>> >>> ubuntu 14.04, linux-image-generic-lts-wily 4.2.0.18.13, lxc >>> 1.1.5-0ubuntu3~ubuntu14.04.1 (from backports), lxcfs >>> 0.12-0ubuntu5~ubuntu14.04.1~ppa1 (from ppa). >>> >>> -- >>> Fajar >>> >>> _______________________________________________ >>> lxc-users mailing list >>> lxc-users@lists.linuxcontainers.org >>> http://lists.linuxcontainers.org/listinfo/lxc-users _______________________________________________ lxc-users mailing list lxc-users@lists.linuxcontainers.org http://lists.linuxcontainers.org/listinfo/lxc-users
