On Mon, 2012-03-05 at 13:43 +0100, Lennart Poettering wrote: > On Thu, 01.03.12 23:04, Mike Galbraith (efault@xxxxxx) wrote: > > > > > On Thu, 2012-03-01 at 16:02 -0500, Vivek Goyal wrote: > > > On Thu, Mar 01, 2012 at 09:26:43PM +0100, Mike Galbraith wrote: > > > > > > Q: you say systemd requires CONFIG_CGROUPS=y. Why is that? It's taking > > > > over sysvinits job afaiui, what does that have to do with cgroups? > > > > > > I think they were using it to track all the children forked by a service > > > and cleanup all of them if need be. So they just need it for logical > > > grouping functionality and don't require any controllers as such. > > > > Hm. Controllers are perhaps not required, but cpu controller was > > configured and used without consent. I didn't receive an offer. > > Just set DefaultControllers= in /etc/systemd/system.conf to an empty > string and systemd will not make use of any hierarchy beyond its private > name=systemd named hierarchy. I updated my laptop to openSUSE 12.1 over the weekend, so tried it. It didn't work, so I tried setting JoinControllers= as well. That split up cpu and cpuacct, but didn't stop cpu from being used. I then moved both system.conf and user.conf to /etc/systemd/save, and got the original setup back.. not surprising given everything was commented out in both files to begin with. The little bugger is stubborn. maggy:/etc/systemd # mount|grep cgroup tmpfs on /sys/fs/cgroup type tmpfs (rw,nosuid,nodev,noexec,relatime,mode=755) cgroup on /sys/fs/cgroup/systemd type cgroup (rw,nosuid,nodev,noexec,relatime,release_agent=/lib/systemd/systemd-cgroups-agent,name=systemd) cgroup on /sys/fs/cgroup/cpuset type cgroup (rw,nosuid,nodev,noexec,relatime,cpuset) cgroup on /sys/fs/cgroup/ns type cgroup (rw,nosuid,nodev,noexec,relatime,ns) cgroup on /sys/fs/cgroup/cpu type cgroup (rw,nosuid,nodev,noexec,relatime,cpu) cgroup on /sys/fs/cgroup/cpuacct type cgroup (rw,nosuid,nodev,noexec,relatime,cpuacct) cgroup on /sys/fs/cgroup/memory type cgroup (rw,nosuid,nodev,noexec,relatime,memory) cgroup on /sys/fs/cgroup/devices type cgroup (rw,nosuid,nodev,noexec,relatime,devices) cgroup on /sys/fs/cgroup/freezer type cgroup (rw,nosuid,nodev,noexec,relatime,freezer) cgroup on /sys/fs/cgroup/blkio type cgroup (rw,nosuid,nodev,noexec,relatime,blkio) maggy:/etc/systemd # cat /sys/fs/cgroup/cpu/tasks|wc -l 262 maggy:/etc/systemd # cat system.conf # This file is part of systemd. # # systemd is free software; you can redistribute it and/or modify it # under the terms of the GNU General Public License as published by # the Free Software Foundation; either version 2 of the License, or # (at your option) any later version. # # See systemd.conf(5) for details [Manager] #LogLevel=info #LogTarget=syslog-or-kmsg #LogColor=yes #LogLocation=no #DumpCore=yes #CrashShell=no #ShowStatus=yes #SysVConsole=yes #CrashChVT=1 #CPUAffinity=1 2 #MountAuto=yes #SwapAuto=yes DefaultControllers= #DefaultStandardOutput=syslog #DefaultStandardError=inherit JoinControllers= maggy:/etc/systemd # reboot... maggy:/etc/systemd # mount|grep cgroup tmpfs on /sys/fs/cgroup type tmpfs (rw,nosuid,nodev,noexec,relatime,mode=755) cgroup on /sys/fs/cgroup/systemd type cgroup (rw,nosuid,nodev,noexec,relatime,release_agent=/lib/systemd/systemd-cgroups-agent,name=systemd) cgroup on /sys/fs/cgroup/cpuset type cgroup (rw,nosuid,nodev,noexec,relatime,cpuset) cgroup on /sys/fs/cgroup/ns type cgroup (rw,nosuid,nodev,noexec,relatime,ns) cgroup on /sys/fs/cgroup/cpu,cpuacct type cgroup (rw,nosuid,nodev,noexec,relatime,cpuacct,cpu) cgroup on /sys/fs/cgroup/memory type cgroup (rw,nosuid,nodev,noexec,relatime,memory) cgroup on /sys/fs/cgroup/devices type cgroup (rw,nosuid,nodev,noexec,relatime,devices) cgroup on /sys/fs/cgroup/freezer type cgroup (rw,nosuid,nodev,noexec,relatime,freezer) cgroup on /sys/fs/cgroup/blkio type cgroup (rw,nosuid,nodev,noexec,relatime,blkio) maggy:/etc/systemd # cat /sys/fs/cgroup/cpu/tasks|wc -l 146 maggy:/etc/systemd # ls save system systemd-logind.conf user maggy:/etc/systemd # _______________________________________________ Containers mailing list Containers@xxxxxxxxxxxxxxxxxxxxxxxxxx https://lists.linuxfoundation.org/mailman/listinfo/containers
