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
