[lxc-users] memory.memsw.limit_in_bytes not working on ubuntu 14.04?
Flo
florian.engelmann at gmail.com
Wed Feb 5 07:18:15 UTC 2014
Hi,
On Tue, Feb 4, 2014 at 10:20 PM, Florian Engelmann <engelmann at d-g-c.de>wrote:
> Hi,
>
> adding "swapaccount=1" to my kernel cmdline fixed that.
>
>
This fixed "lxc.cgroup.memory.memsw.limit_in_bytes" but I was not able to
set
lxc.cgroup.memory.swappiness = 10
and
lxc.cgroup.memory.oom_control = 0
Why?
Regards,
Flo
>
> On 2014-02-04 21:35, Flo wrote:
>
>> Hi,
>>
>> I just created a container with:
>>
>> lxc-create -n test1 -t ubuntu
>>
>> Checking cache download in /var/cache/lxc/trusty/rootfs-amd64 ...
>> Copy /var/cache/lxc/trusty/rootfs-amd64 to /var/lib/lxc/test1/rootfs
>> ...
>> Copying rootfs to /var/lib/lxc/test1/rootfs ...
>> Generating locales...
>> en_US.UTF-8... up-to-date
>> Generation complete.
>> Creating SSH2 RSA key; this may take some time ...
>> Creating SSH2 DSA key; this may take some time ...
>> Creating SSH2 ECDSA key; this may take some time ...
>> invoke-rc.d: policy-rc.d denied execution of start.
>>
>> Current default time zone: 'Europe/Zurich'
>> Local time is now: Tue Feb 4 21:28:10 CET 2014.
>> Universal Time is now: Tue Feb 4 20:28:10 UTC 2014.
>>
>> ##
>> # The default user is 'ubuntu' with password 'ubuntu'!
>> # Use the 'sudo' command to run tasks as root in the container.
>> ##
>>
>> added some restrictions to the config
>>
>> cat <<EOF >> /var/lib/lxc/test1/config
>>
>> lxc.cgroup.cpu.shares = 256
>> # restrict IO weight to 1/2 (range 10-1000)
>> lxc.cgroup.blkio.weight = 500
>> # limit memory
>> lxc.cgroup.memory.limit_in_bytes = 4G
>> lxc.cgroup.memory.soft_limit_in_bytes = 3G
>> # memory + swap limit (6G - 4G = 2G SWAP)
>> lxc.cgroup.memory.memsw.limit_in_bytes = 6G
>> # default 60
>> lxc.cgroup.memory.swappiness = 10
>> # untestet
>> lxc.cgroup.memory.oom_control = 0
>> EOF
>>
>> and tried to start the container with:
>>
>> lxc-start -d -n test1 -l debug -o /tmp/222
>>
>> cat /tmp/222
>> lxc-start 1391545773.545 INFO lxc_start_ui - using
>> rcfile /var/lib/lxc/test1/config
>>
>> lxc-start 1391545773.546 WARN lxc_log - lxc_log_init
>> called with log already initialized
>> lxc-start 1391545773.551 INFO lxc_lsm - LSM security
>> driver AppArmor
>> lxc-start 1391545773.552 DEBUG lxc_conf - allocated pty
>> '/dev/pts/17' (5/6)
>> lxc-start 1391545773.552 DEBUG lxc_conf - allocated pty
>> '/dev/pts/18' (7/8)
>> lxc-start 1391545773.552 DEBUG lxc_conf - allocated pty
>> '/dev/pts/19' (9/10)
>> lxc-start 1391545773.552 DEBUG lxc_conf - allocated pty
>> '/dev/pts/20' (11/12)
>> lxc-start 1391545773.552 INFO lxc_conf - tty's
>> configured
>> lxc-start 1391545773.552 DEBUG lxc_start - sigchild
>> handler set
>> lxc-start 1391545773.552 DEBUG lxc_console - no console
>> peer
>> lxc-start 1391545773.552 INFO lxc_start - 'test1' is
>> initialized
>> lxc-start 1391545773.554 INFO lxc_monitor - using
>> monitor sock name lxc/ad055575fe28ddd5//var/lib/lxc
>> lxc-start 1391545773.559 DEBUG lxc_start - Not dropping
>> cap_sys_boot or watching utmp
>>
>> lxc-start 1391545773.568 ERROR lxc_conf - failed to
>> attach 'vethUNUBR9' to the bridge 'lxcbr0' : No such device
>> lxc-start 1391545773.591 ERROR lxc_conf - failed to
>> create netdev
>> lxc-start 1391545773.591 ERROR lxc_start - failed to
>> create the network
>> lxc-start 1391545773.591 ERROR lxc_start - failed to
>> spawn 'test1'
>> lxc-start 1391545773.591 ERROR lxc_commands - command
>> get_cgroup failed to receive response
>> lxc-start 1391545821.393 INFO lxc_start_ui - using
>> rcfile /var/lib/lxc/test1/config
>> lxc-start 1391545821.394 WARN lxc_log - lxc_log_init
>> called with log already initialized
>> lxc-start 1391545821.399 INFO lxc_lsm - LSM security
>> driver AppArmor
>> lxc-start 1391545821.400 DEBUG lxc_conf - allocated pty
>> '/dev/pts/17' (5/6)
>> lxc-start 1391545821.400 DEBUG lxc_conf - allocated pty
>> '/dev/pts/18' (7/8)
>> lxc-start 1391545821.400 DEBUG lxc_conf - allocated pty
>> '/dev/pts/19' (9/10)
>> lxc-start 1391545821.400 DEBUG lxc_conf - allocated pty
>> '/dev/pts/20' (11/12)
>> lxc-start 1391545821.400 INFO lxc_conf - tty's
>> configured
>> lxc-start 1391545821.400 DEBUG lxc_start - sigchild
>> handler set
>> lxc-start 1391545821.400 DEBUG lxc_console - no console
>> peer
>> lxc-start 1391545821.400 INFO lxc_start - 'test1' is
>> initialized
>> lxc-start 1391545821.403 INFO lxc_monitor - using
>> monitor sock name lxc/ad055575fe28ddd5//var/lib/lxc
>> lxc-start 1391545821.419 DEBUG lxc_start - Not dropping
>> cap_sys_boot or watching utmp
>>
>> lxc-start 1391545821.424 DEBUG lxc_conf - instanciated
>> veth 'vethCXBLUH/vethRFOV22', index is '72'
>> lxc-start 1391545821.428 DEBUG lxc_cgroup - cgroup
>> 'devices.deny' set to 'a'
>> lxc-start 1391545821.428 DEBUG lxc_cgroup - cgroup
>> 'devices.allow' set to 'c *:* m'
>> lxc-start 1391545821.428 DEBUG lxc_cgroup - cgroup
>> 'devices.allow' set to 'b *:* m'
>> lxc-start 1391545821.428 DEBUG lxc_cgroup - cgroup
>> 'devices.allow' set to 'c 1:3 rwm'
>> lxc-start 1391545821.428 DEBUG lxc_cgroup - cgroup
>> 'devices.allow' set to 'c 1:5 rwm'
>> lxc-start 1391545821.428 DEBUG lxc_cgroup - cgroup
>> 'devices.allow' set to 'c 5:0 rwm'
>> lxc-start 1391545821.428 DEBUG lxc_cgroup - cgroup
>> 'devices.allow' set to 'c 5:1 rwm'
>> lxc-start 1391545821.428 DEBUG lxc_cgroup - cgroup
>> 'devices.allow' set to 'c 1:8 rwm'
>> lxc-start 1391545821.428 DEBUG lxc_cgroup - cgroup
>> 'devices.allow' set to 'c 1:9 rwm'
>> lxc-start 1391545821.428 DEBUG lxc_cgroup - cgroup
>> 'devices.allow' set to 'c 5:2 rwm'
>> lxc-start 1391545821.428 DEBUG lxc_cgroup - cgroup
>> 'devices.allow' set to 'c 136:* rwm'
>> lxc-start 1391545821.428 DEBUG lxc_cgroup - cgroup
>> 'devices.allow' set to 'c 254:0 rm'
>> lxc-start 1391545821.428 DEBUG lxc_cgroup - cgroup
>> 'devices.allow' set to 'c 10:229 rwm'
>> lxc-start 1391545821.428 DEBUG lxc_cgroup - cgroup
>> 'devices.allow' set to 'c 10:200 rwm'
>> lxc-start 1391545821.428 DEBUG lxc_cgroup - cgroup
>> 'devices.allow' set to 'c 1:7 rwm'
>> lxc-start 1391545821.428 DEBUG lxc_cgroup - cgroup
>> 'devices.allow' set to 'c 10:228 rwm'
>> lxc-start 1391545821.428 DEBUG lxc_cgroup - cgroup
>> 'devices.allow' set to 'c 10:232 rwm'
>> lxc-start 1391545821.428 DEBUG lxc_cgroup - cgroup
>> 'cpu.shares' set to '256'
>> lxc-start 1391545821.428 DEBUG lxc_cgroup - cgroup
>> 'blkio.weight' set to '500'
>> lxc-start 1391545821.428 DEBUG lxc_cgroup - cgroup
>> 'memory.limit_in_bytes' set to '4G'
>> lxc-start 1391545821.428 DEBUG lxc_cgroup - cgroup
>> 'memory.soft_limit_in_bytes' set to '3G'
>> lxc-start 1391545821.428 ERROR lxc_cgroup - Error
>> setting memory.memsw.limit_in_bytes to 6G for test1
>>
>> lxc-start 1391545821.428 ERROR lxc_start - failed to
>> setup the cgroup limits for 'test1'
>> lxc-start 1391545821.523 ERROR lxc_start - failed to
>> spawn 'test1'
>> lxc-start 1391545821.523 ERROR lxc_commands - command
>> get_cgroup failed to receive response
>>
>> Is cgroup memory.memsw.limit_in_bytes broken in ubuntu 14.04 right
>> now?
>>
>> Regards,
>> Flo
>> _______________________________________________
>> lxc-users mailing list
>> lxc-users at lists.linuxcontainers.org
>> http://lists.linuxcontainers.org/listinfo/lxc-users
>>
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