460 lines
30 KiB
Go
460 lines
30 KiB
Go
// +build linux
|
|
|
|
package cgroups
|
|
|
|
import (
|
|
"bytes"
|
|
"errors"
|
|
"fmt"
|
|
"reflect"
|
|
"strings"
|
|
"testing"
|
|
)
|
|
|
|
const fedoraMountinfo = `15 35 0:3 / /proc rw,nosuid,nodev,noexec,relatime shared:5 - proc proc rw
|
|
16 35 0:14 / /sys rw,nosuid,nodev,noexec,relatime shared:6 - sysfs sysfs rw,seclabel
|
|
17 35 0:5 / /dev rw,nosuid shared:2 - devtmpfs devtmpfs rw,seclabel,size=8056484k,nr_inodes=2014121,mode=755
|
|
18 16 0:15 / /sys/kernel/security rw,nosuid,nodev,noexec,relatime shared:7 - securityfs securityfs rw
|
|
19 16 0:13 / /sys/fs/selinux rw,relatime shared:8 - selinuxfs selinuxfs rw
|
|
20 17 0:16 / /dev/shm rw,nosuid,nodev shared:3 - tmpfs tmpfs rw,seclabel
|
|
21 17 0:10 / /dev/pts rw,nosuid,noexec,relatime shared:4 - devpts devpts rw,seclabel,gid=5,mode=620,ptmxmode=000
|
|
22 35 0:17 / /run rw,nosuid,nodev shared:21 - tmpfs tmpfs rw,seclabel,mode=755
|
|
23 16 0:18 / /sys/fs/cgroup rw,nosuid,nodev,noexec shared:9 - tmpfs tmpfs rw,seclabel,mode=755
|
|
24 23 0:19 / /sys/fs/cgroup/systemd rw,nosuid,nodev,noexec,relatime shared:10 - cgroup cgroup rw,xattr,release_agent=/usr/lib/systemd/systemd-cgroups-agent,name=systemd
|
|
25 16 0:20 / /sys/fs/pstore rw,nosuid,nodev,noexec,relatime shared:20 - pstore pstore rw
|
|
26 23 0:21 / /sys/fs/cgroup/cpuset rw,nosuid,nodev,noexec,relatime shared:11 - cgroup cgroup rw,cpuset,clone_children
|
|
27 23 0:22 / /sys/fs/cgroup/cpu,cpuacct rw,nosuid,nodev,noexec,relatime shared:12 - cgroup cgroup rw,cpuacct,cpu,clone_children
|
|
28 23 0:23 / /sys/fs/cgroup/memory rw,nosuid,nodev,noexec,relatime shared:13 - cgroup cgroup rw,memory,clone_children
|
|
29 23 0:24 / /sys/fs/cgroup/devices rw,nosuid,nodev,noexec,relatime shared:14 - cgroup cgroup rw,devices,clone_children
|
|
30 23 0:25 / /sys/fs/cgroup/freezer rw,nosuid,nodev,noexec,relatime shared:15 - cgroup cgroup rw,freezer,clone_children
|
|
31 23 0:26 / /sys/fs/cgroup/net_cls rw,nosuid,nodev,noexec,relatime shared:16 - cgroup cgroup rw,net_cls,clone_children
|
|
32 23 0:27 / /sys/fs/cgroup/blkio rw,nosuid,nodev,noexec,relatime shared:17 - cgroup cgroup rw,blkio,clone_children
|
|
33 23 0:28 / /sys/fs/cgroup/perf_event rw,nosuid,nodev,noexec,relatime shared:18 - cgroup cgroup rw,perf_event,clone_children
|
|
34 23 0:29 / /sys/fs/cgroup/hugetlb rw,nosuid,nodev,noexec,relatime shared:19 - cgroup cgroup rw,hugetlb,clone_children
|
|
35 1 253:2 / / rw,relatime shared:1 - ext4 /dev/mapper/ssd-root--f20 rw,seclabel,data=ordered
|
|
36 15 0:30 / /proc/sys/fs/binfmt_misc rw,relatime shared:22 - autofs systemd-1 rw,fd=38,pgrp=1,timeout=300,minproto=5,maxproto=5,direct
|
|
37 17 0:12 / /dev/mqueue rw,relatime shared:23 - mqueue mqueue rw,seclabel
|
|
38 35 0:31 / /tmp rw shared:24 - tmpfs tmpfs rw,seclabel
|
|
39 17 0:32 / /dev/hugepages rw,relatime shared:25 - hugetlbfs hugetlbfs rw,seclabel
|
|
40 16 0:7 / /sys/kernel/debug rw,relatime shared:26 - debugfs debugfs rw
|
|
41 16 0:33 / /sys/kernel/config rw,relatime shared:27 - configfs configfs rw
|
|
42 35 0:34 / /var/lib/nfs/rpc_pipefs rw,relatime shared:28 - rpc_pipefs sunrpc rw
|
|
43 15 0:35 / /proc/fs/nfsd rw,relatime shared:29 - nfsd sunrpc rw
|
|
45 35 8:17 / /boot rw,relatime shared:30 - ext4 /dev/sdb1 rw,seclabel,data=ordered
|
|
46 35 253:4 / /home rw,relatime shared:31 - ext4 /dev/mapper/ssd-home rw,seclabel,data=ordered
|
|
47 35 253:5 / /var/lib/libvirt/images rw,noatime,nodiratime shared:32 - ext4 /dev/mapper/ssd-virt rw,seclabel,discard,data=ordered
|
|
48 35 253:12 / /mnt/old rw,relatime shared:33 - ext4 /dev/mapper/HelpDeskRHEL6-FedoraRoot rw,seclabel,data=ordered
|
|
121 22 0:36 / /run/user/1000/gvfs rw,nosuid,nodev,relatime shared:104 - fuse.gvfsd-fuse gvfsd-fuse rw,user_id=1000,group_id=1000
|
|
124 16 0:37 / /sys/fs/fuse/connections rw,relatime shared:107 - fusectl fusectl rw
|
|
165 38 253:3 / /tmp/mnt rw,relatime shared:147 - ext4 /dev/mapper/ssd-root rw,seclabel,data=ordered
|
|
167 35 253:15 / /var/lib/docker/devicemapper/mnt/aae4076022f0e2b80a2afbf8fc6df450c52080191fcef7fb679a73e6f073e5c2 rw,relatime shared:149 - ext4 /dev/mapper/docker-253:2-425882-aae4076022f0e2b80a2afbf8fc6df450c52080191fcef7fb679a73e6f073e5c2 rw,seclabel,discard,stripe=16,data=ordered
|
|
171 35 253:16 / /var/lib/docker/devicemapper/mnt/c71be651f114db95180e472f7871b74fa597ee70a58ccc35cb87139ddea15373 rw,relatime shared:153 - ext4 /dev/mapper/docker-253:2-425882-c71be651f114db95180e472f7871b74fa597ee70a58ccc35cb87139ddea15373 rw,seclabel,discard,stripe=16,data=ordered
|
|
175 35 253:17 / /var/lib/docker/devicemapper/mnt/1bac6ab72862d2d5626560df6197cf12036b82e258c53d981fa29adce6f06c3c rw,relatime shared:157 - ext4 /dev/mapper/docker-253:2-425882-1bac6ab72862d2d5626560df6197cf12036b82e258c53d981fa29adce6f06c3c rw,seclabel,discard,stripe=16,data=ordered
|
|
179 35 253:18 / /var/lib/docker/devicemapper/mnt/d710a357d77158e80d5b2c55710ae07c94e76d34d21ee7bae65ce5418f739b09 rw,relatime shared:161 - ext4 /dev/mapper/docker-253:2-425882-d710a357d77158e80d5b2c55710ae07c94e76d34d21ee7bae65ce5418f739b09 rw,seclabel,discard,stripe=16,data=ordered
|
|
183 35 253:19 / /var/lib/docker/devicemapper/mnt/6479f52366114d5f518db6837254baab48fab39f2ac38d5099250e9a6ceae6c7 rw,relatime shared:165 - ext4 /dev/mapper/docker-253:2-425882-6479f52366114d5f518db6837254baab48fab39f2ac38d5099250e9a6ceae6c7 rw,seclabel,discard,stripe=16,data=ordered
|
|
187 35 253:20 / /var/lib/docker/devicemapper/mnt/8d9df91c4cca5aef49eeb2725292aab324646f723a7feab56be34c2ad08268e1 rw,relatime shared:169 - ext4 /dev/mapper/docker-253:2-425882-8d9df91c4cca5aef49eeb2725292aab324646f723a7feab56be34c2ad08268e1 rw,seclabel,discard,stripe=16,data=ordered
|
|
191 35 253:21 / /var/lib/docker/devicemapper/mnt/c8240b768603d32e920d365dc9d1dc2a6af46cd23e7ae819947f969e1b4ec661 rw,relatime shared:173 - ext4 /dev/mapper/docker-253:2-425882-c8240b768603d32e920d365dc9d1dc2a6af46cd23e7ae819947f969e1b4ec661 rw,seclabel,discard,stripe=16,data=ordered
|
|
195 35 253:22 / /var/lib/docker/devicemapper/mnt/2eb3a01278380bbf3ed12d86ac629eaa70a4351301ee307a5cabe7b5f3b1615f rw,relatime shared:177 - ext4 /dev/mapper/docker-253:2-425882-2eb3a01278380bbf3ed12d86ac629eaa70a4351301ee307a5cabe7b5f3b1615f rw,seclabel,discard,stripe=16,data=ordered
|
|
199 35 253:23 / /var/lib/docker/devicemapper/mnt/37a17fb7c9d9b80821235d5f2662879bd3483915f245f9b49cdaa0e38779b70b rw,relatime shared:181 - ext4 /dev/mapper/docker-253:2-425882-37a17fb7c9d9b80821235d5f2662879bd3483915f245f9b49cdaa0e38779b70b rw,seclabel,discard,stripe=16,data=ordered
|
|
203 35 253:24 / /var/lib/docker/devicemapper/mnt/aea459ae930bf1de913e2f29428fd80ee678a1e962d4080019d9f9774331ee2b rw,relatime shared:185 - ext4 /dev/mapper/docker-253:2-425882-aea459ae930bf1de913e2f29428fd80ee678a1e962d4080019d9f9774331ee2b rw,seclabel,discard,stripe=16,data=ordered
|
|
207 35 253:25 / /var/lib/docker/devicemapper/mnt/928ead0bc06c454bd9f269e8585aeae0a6bd697f46dc8754c2a91309bc810882 rw,relatime shared:189 - ext4 /dev/mapper/docker-253:2-425882-928ead0bc06c454bd9f269e8585aeae0a6bd697f46dc8754c2a91309bc810882 rw,seclabel,discard,stripe=16,data=ordered
|
|
211 35 253:26 / /var/lib/docker/devicemapper/mnt/0f284d18481d671644706e7a7244cbcf63d590d634cc882cb8721821929d0420 rw,relatime shared:193 - ext4 /dev/mapper/docker-253:2-425882-0f284d18481d671644706e7a7244cbcf63d590d634cc882cb8721821929d0420 rw,seclabel,discard,stripe=16,data=ordered
|
|
215 35 253:27 / /var/lib/docker/devicemapper/mnt/d9dd16722ab34c38db2733e23f69e8f4803ce59658250dd63e98adff95d04919 rw,relatime shared:197 - ext4 /dev/mapper/docker-253:2-425882-d9dd16722ab34c38db2733e23f69e8f4803ce59658250dd63e98adff95d04919 rw,seclabel,discard,stripe=16,data=ordered
|
|
219 35 253:28 / /var/lib/docker/devicemapper/mnt/bc4500479f18c2c08c21ad5282e5f826a016a386177d9874c2764751c031d634 rw,relatime shared:201 - ext4 /dev/mapper/docker-253:2-425882-bc4500479f18c2c08c21ad5282e5f826a016a386177d9874c2764751c031d634 rw,seclabel,discard,stripe=16,data=ordered
|
|
223 35 253:29 / /var/lib/docker/devicemapper/mnt/7770c8b24eb3d5cc159a065910076938910d307ab2f5d94e1dc3b24c06ee2c8a rw,relatime shared:205 - ext4 /dev/mapper/docker-253:2-425882-7770c8b24eb3d5cc159a065910076938910d307ab2f5d94e1dc3b24c06ee2c8a rw,seclabel,discard,stripe=16,data=ordered
|
|
227 35 253:30 / /var/lib/docker/devicemapper/mnt/c280cd3d0bf0aa36b478b292279671624cceafc1a67eaa920fa1082601297adf rw,relatime shared:209 - ext4 /dev/mapper/docker-253:2-425882-c280cd3d0bf0aa36b478b292279671624cceafc1a67eaa920fa1082601297adf rw,seclabel,discard,stripe=16,data=ordered
|
|
231 35 253:31 / /var/lib/docker/devicemapper/mnt/8b59a7d9340279f09fea67fd6ad89ddef711e9e7050eb647984f8b5ef006335f rw,relatime shared:213 - ext4 /dev/mapper/docker-253:2-425882-8b59a7d9340279f09fea67fd6ad89ddef711e9e7050eb647984f8b5ef006335f rw,seclabel,discard,stripe=16,data=ordered
|
|
235 35 253:32 / /var/lib/docker/devicemapper/mnt/1a28059f29eda821578b1bb27a60cc71f76f846a551abefabce6efd0146dce9f rw,relatime shared:217 - ext4 /dev/mapper/docker-253:2-425882-1a28059f29eda821578b1bb27a60cc71f76f846a551abefabce6efd0146dce9f rw,seclabel,discard,stripe=16,data=ordered
|
|
239 35 253:33 / /var/lib/docker/devicemapper/mnt/e9aa60c60128cad1 rw,relatime shared:221 - ext4 /dev/mapper/docker-253:2-425882-e9aa60c60128cad1 rw,seclabel,discard,stripe=16,data=ordered
|
|
243 35 253:34 / /var/lib/docker/devicemapper/mnt/5fec11304b6f4713fea7b6ccdcc1adc0a1966187f590fe25a8227428a8df275d-init rw,relatime shared:225 - ext4 /dev/mapper/docker-253:2-425882-5fec11304b6f4713fea7b6ccdcc1adc0a1966187f590fe25a8227428a8df275d-init rw,seclabel,discard,stripe=16,data=ordered
|
|
247 35 253:35 / /var/lib/docker/devicemapper/mnt/5fec11304b6f4713fea7b6ccdcc1adc0a1966187f590fe25a8227428a8df275d rw,relatime shared:229 - ext4 /dev/mapper/docker-253:2-425882-5fec11304b6f4713fea7b6ccdcc1adc0a1966187f590fe25a8227428a8df275d rw,seclabel,discard,stripe=16,data=ordered
|
|
31 21 0:23 / /DATA/foo_bla_bla rw,relatime - cifs //foo/BLA\040BLA\040BLA/ rw,sec=ntlm,cache=loose,unc=\\foo\BLA BLA BLA,username=my_login,domain=mydomain.com,uid=12345678,forceuid,gid=12345678,forcegid,addr=10.1.30.10,file_mode=0755,dir_mode=0755,nounix,rsize=61440,wsize=65536,actimeo=1`
|
|
|
|
const systemdMountinfo = `115 83 0:32 / / rw,relatime - aufs none rw,si=c0bd3d3,dio,dirperm1
|
|
116 115 0:35 / /proc rw,nosuid,nodev,noexec,relatime - proc proc rw
|
|
117 115 0:36 / /dev rw,nosuid - tmpfs tmpfs rw,mode=755
|
|
118 117 0:37 / /dev/pts rw,nosuid,noexec,relatime - devpts devpts rw,gid=5,mode=620,ptmxmode=666
|
|
119 115 0:38 / /sys rw,nosuid,nodev,noexec,relatime - sysfs sysfs rw
|
|
120 119 0:39 / /sys/fs/cgroup rw,nosuid,nodev,noexec,relatime - tmpfs tmpfs rw,mode=755
|
|
121 120 0:19 /system.slice/docker-dc4eaa1a34ec4d593bc0125d31eea823a1d76ae483aeb1409cca80304e34da2e.scope /sys/fs/cgroup/systemd rw,nosuid,nodev,noexec,relatime - cgroup cgroup rw,xattr,release_agent=/lib/systemd/systemd-cgroups-agent,name=systemd
|
|
122 120 0:20 /system.slice/docker-dc4eaa1a34ec4d593bc0125d31eea823a1d76ae483aeb1409cca80304e34da2e.scope /sys/fs/cgroup/devices rw,nosuid,nodev,noexec,relatime - cgroup cgroup rw,devices
|
|
123 120 0:21 /system.slice/docker-dc4eaa1a34ec4d593bc0125d31eea823a1d76ae483aeb1409cca80304e34da2e.scope /sys/fs/cgroup/freezer rw,nosuid,nodev,noexec,relatime - cgroup cgroup rw,freezer
|
|
124 120 0:22 /system.slice/docker-dc4eaa1a34ec4d593bc0125d31eea823a1d76ae483aeb1409cca80304e34da2e.scope /sys/fs/cgroup/memory rw,nosuid,nodev,noexec,relatime - cgroup cgroup rw,memory
|
|
125 120 0:23 /system.slice/docker-dc4eaa1a34ec4d593bc0125d31eea823a1d76ae483aeb1409cca80304e34da2e.scope /sys/fs/cgroup/net_cls,net_prio rw,nosuid,nodev,noexec,relatime - cgroup cgroup rw,net_cls,net_prio
|
|
126 120 0:24 /system.slice/docker-dc4eaa1a34ec4d593bc0125d31eea823a1d76ae483aeb1409cca80304e34da2e.scope /sys/fs/cgroup/blkio rw,nosuid,nodev,noexec,relatime - cgroup cgroup rw,blkio
|
|
127 120 0:25 /system.slice/docker-dc4eaa1a34ec4d593bc0125d31eea823a1d76ae483aeb1409cca80304e34da2e.scope /sys/fs/cgroup/cpuset rw,nosuid,nodev,noexec,relatime - cgroup cgroup rw,cpuset,clone_children
|
|
128 120 0:26 /system.slice/docker-dc4eaa1a34ec4d593bc0125d31eea823a1d76ae483aeb1409cca80304e34da2e.scope /sys/fs/cgroup/cpu,cpuacct rw,nosuid,nodev,noexec,relatime - cgroup cgroup rw,cpu,cpuacct
|
|
129 120 0:27 /system.slice/docker-dc4eaa1a34ec4d593bc0125d31eea823a1d76ae483aeb1409cca80304e34da2e.scope /sys/fs/cgroup/perf_event rw,nosuid,nodev,noexec,relatime - cgroup cgroup rw,perf_event,release_agent=/run/cgmanager/agents/cgm-release-agent.perf_event
|
|
130 115 43:0 /var/lib/docker/volumes/a44a712176377f57c094397330ee04387284c478364eb25f4c3d25f775f25c26/_data /var/lib/docker rw,relatime - ext4 /dev/nbd0 rw,data=ordered
|
|
131 115 43:0 /var/lib/docker/containers/dc4eaa1a34ec4d593bc0125d31eea823a1d76ae483aeb1409cca80304e34da2e/resolv.conf /etc/resolv.conf rw,relatime - ext4 /dev/nbd0 rw,data=ordered
|
|
132 115 43:0 /var/lib/docker/containers/dc4eaa1a34ec4d593bc0125d31eea823a1d76ae483aeb1409cca80304e34da2e/hostname /etc/hostname rw,relatime - ext4 /dev/nbd0 rw,data=ordered
|
|
133 115 43:0 /var/lib/docker/containers/dc4eaa1a34ec4d593bc0125d31eea823a1d76ae483aeb1409cca80304e34da2e/hosts /etc/hosts rw,relatime - ext4 /dev/nbd0 rw,data=ordered
|
|
134 117 0:33 / /dev/shm rw,nosuid,nodev,noexec,relatime - tmpfs shm rw,size=65536k
|
|
135 117 0:13 / /dev/mqueue rw,nosuid,nodev,noexec,relatime - mqueue mqueue rw
|
|
136 117 0:12 /1 /dev/console rw,nosuid,noexec,relatime - devpts none rw,gid=5,mode=620,ptmxmode=000
|
|
84 115 0:40 / /tmp rw,relatime - tmpfs none rw`
|
|
|
|
const bedrockMountinfo = `120 17 0:28 / /sys/fs/cgroup ro,nosuid,nodev,noexec shared:16 - tmpfs tmpfs ro,mode=755
|
|
124 28 0:28 / /bedrock/strata/arch/sys/fs/cgroup rw,nosuid,nodev,noexec shared:16 - tmpfs tmpfs ro,mode=755
|
|
123 53 0:28 / /bedrock/strata/fallback/sys/fs/cgroup rw,nosuid,nodev,noexec shared:16 - tmpfs tmpfs ro,mode=755
|
|
122 71 0:28 / /bedrock/strata/gentoo/sys/fs/cgroup rw,nosuid,nodev,noexec shared:16 - tmpfs tmpfs ro,mode=755
|
|
121 89 0:28 / /bedrock/strata/kde/sys/fs/cgroup rw,nosuid,nodev,noexec shared:16 - tmpfs tmpfs ro,mode=755
|
|
125 120 0:29 / /sys/fs/cgroup/systemd rw,nosuid,nodev,noexec,relatime shared:17 - cgroup cgroup rw,xattr,release_agent=/lib/systemd/systemd-cgroups-agent,name=systemd
|
|
129 124 0:29 / /bedrock/strata/arch/sys/fs/cgroup/systemd rw,nosuid,nodev,noexec,relatime shared:17 - cgroup cgroup rw,xattr,release_agent=/lib/systemd/systemd-cgroups-agent,name=systemd
|
|
128 123 0:29 / /bedrock/strata/fallback/sys/fs/cgroup/systemd rw,nosuid,nodev,noexec,relatime shared:17 - cgroup cgroup rw,xattr,release_agent=/lib/systemd/systemd-cgroups-agent,name=systemd
|
|
127 122 0:29 / /bedrock/strata/gentoo/sys/fs/cgroup/systemd rw,nosuid,nodev,noexec,relatime shared:17 - cgroup cgroup rw,xattr,release_agent=/lib/systemd/systemd-cgroups-agent,name=systemd
|
|
126 121 0:29 / /bedrock/strata/kde/sys/fs/cgroup/systemd rw,nosuid,nodev,noexec,relatime shared:17 - cgroup cgroup rw,xattr,release_agent=/lib/systemd/systemd-cgroups-agent,name=systemd
|
|
140 120 0:32 / /sys/fs/cgroup/net_cls,net_prio rw,nosuid,nodev,noexec,relatime shared:48 - cgroup cgroup rw,net_cls,net_prio
|
|
144 124 0:32 / /bedrock/strata/arch/sys/fs/cgroup/net_cls,net_prio rw,nosuid,nodev,noexec,relatime shared:48 - cgroup cgroup rw,net_cls,net_prio
|
|
143 123 0:32 / /bedrock/strata/fallback/sys/fs/cgroup/net_cls,net_prio rw,nosuid,nodev,noexec,relatime shared:48 - cgroup cgroup rw,net_cls,net_prio
|
|
142 122 0:32 / /bedrock/strata/gentoo/sys/fs/cgroup/net_cls,net_prio rw,nosuid,nodev,noexec,relatime shared:48 - cgroup cgroup rw,net_cls,net_prio
|
|
141 121 0:32 / /bedrock/strata/kde/sys/fs/cgroup/net_cls,net_prio rw,nosuid,nodev,noexec,relatime shared:48 - cgroup cgroup rw,net_cls,net_prio
|
|
145 120 0:33 / /sys/fs/cgroup/blkio rw,nosuid,nodev,noexec,relatime shared:49 - cgroup cgroup rw,blkio
|
|
149 124 0:33 / /bedrock/strata/arch/sys/fs/cgroup/blkio rw,nosuid,nodev,noexec,relatime shared:49 - cgroup cgroup rw,blkio
|
|
148 123 0:33 / /bedrock/strata/fallback/sys/fs/cgroup/blkio rw,nosuid,nodev,noexec,relatime shared:49 - cgroup cgroup rw,blkio
|
|
147 122 0:33 / /bedrock/strata/gentoo/sys/fs/cgroup/blkio rw,nosuid,nodev,noexec,relatime shared:49 - cgroup cgroup rw,blkio
|
|
146 121 0:33 / /bedrock/strata/kde/sys/fs/cgroup/blkio rw,nosuid,nodev,noexec,relatime shared:49 - cgroup cgroup rw,blkio
|
|
150 120 0:34 / /sys/fs/cgroup/cpu,cpuacct rw,nosuid,nodev,noexec,relatime shared:50 - cgroup cgroup rw,cpu,cpuacct
|
|
154 124 0:34 / /bedrock/strata/arch/sys/fs/cgroup/cpu,cpuacct rw,nosuid,nodev,noexec,relatime shared:50 - cgroup cgroup rw,cpu,cpuacct
|
|
153 123 0:34 / /bedrock/strata/fallback/sys/fs/cgroup/cpu,cpuacct rw,nosuid,nodev,noexec,relatime shared:50 - cgroup cgroup rw,cpu,cpuacct
|
|
152 122 0:34 / /bedrock/strata/gentoo/sys/fs/cgroup/cpu,cpuacct rw,nosuid,nodev,noexec,relatime shared:50 - cgroup cgroup rw,cpu,cpuacct
|
|
151 121 0:34 / /bedrock/strata/kde/sys/fs/cgroup/cpu,cpuacct rw,nosuid,nodev,noexec,relatime shared:50 - cgroup cgroup rw,cpu,cpuacct
|
|
155 120 0:35 / /sys/fs/cgroup/cpuset rw,nosuid,nodev,noexec,relatime shared:51 - cgroup cgroup rw,cpuset
|
|
159 124 0:35 / /bedrock/strata/arch/sys/fs/cgroup/cpuset rw,nosuid,nodev,noexec,relatime shared:51 - cgroup cgroup rw,cpuset
|
|
158 123 0:35 / /bedrock/strata/fallback/sys/fs/cgroup/cpuset rw,nosuid,nodev,noexec,relatime shared:51 - cgroup cgroup rw,cpuset
|
|
157 122 0:35 / /bedrock/strata/gentoo/sys/fs/cgroup/cpuset rw,nosuid,nodev,noexec,relatime shared:51 - cgroup cgroup rw,cpuset
|
|
156 121 0:35 / /bedrock/strata/kde/sys/fs/cgroup/cpuset rw,nosuid,nodev,noexec,relatime shared:51 - cgroup cgroup rw,cpuset
|
|
160 120 0:36 / /sys/fs/cgroup/devices rw,nosuid,nodev,noexec,relatime shared:52 - cgroup cgroup rw,devices
|
|
164 124 0:36 / /bedrock/strata/arch/sys/fs/cgroup/devices rw,nosuid,nodev,noexec,relatime shared:52 - cgroup cgroup rw,devices
|
|
163 123 0:36 / /bedrock/strata/fallback/sys/fs/cgroup/devices rw,nosuid,nodev,noexec,relatime shared:52 - cgroup cgroup rw,devices
|
|
162 122 0:36 / /bedrock/strata/gentoo/sys/fs/cgroup/devices rw,nosuid,nodev,noexec,relatime shared:52 - cgroup cgroup rw,devices
|
|
161 121 0:36 / /bedrock/strata/kde/sys/fs/cgroup/devices rw,nosuid,nodev,noexec,relatime shared:52 - cgroup cgroup rw,devices
|
|
165 120 0:37 / /sys/fs/cgroup/memory rw,nosuid,nodev,noexec,relatime shared:53 - cgroup cgroup rw,memory
|
|
169 124 0:37 / /bedrock/strata/arch/sys/fs/cgroup/memory rw,nosuid,nodev,noexec,relatime shared:53 - cgroup cgroup rw,memory
|
|
168 123 0:37 / /bedrock/strata/fallback/sys/fs/cgroup/memory rw,nosuid,nodev,noexec,relatime shared:53 - cgroup cgroup rw,memory
|
|
167 122 0:37 / /bedrock/strata/gentoo/sys/fs/cgroup/memory rw,nosuid,nodev,noexec,relatime shared:53 - cgroup cgroup rw,memory
|
|
166 121 0:37 / /bedrock/strata/kde/sys/fs/cgroup/memory rw,nosuid,nodev,noexec,relatime shared:53 - cgroup cgroup rw,memory
|
|
170 120 0:38 / /sys/fs/cgroup/freezer rw,nosuid,nodev,noexec,relatime shared:54 - cgroup cgroup rw,freezer
|
|
174 124 0:38 / /bedrock/strata/arch/sys/fs/cgroup/freezer rw,nosuid,nodev,noexec,relatime shared:54 - cgroup cgroup rw,freezer
|
|
173 123 0:38 / /bedrock/strata/fallback/sys/fs/cgroup/freezer rw,nosuid,nodev,noexec,relatime shared:54 - cgroup cgroup rw,freezer
|
|
172 122 0:38 / /bedrock/strata/gentoo/sys/fs/cgroup/freezer rw,nosuid,nodev,noexec,relatime shared:54 - cgroup cgroup rw,freezer
|
|
171 121 0:38 / /bedrock/strata/kde/sys/fs/cgroup/freezer rw,nosuid,nodev,noexec,relatime shared:54 - cgroup cgroup rw,freezer
|
|
175 120 0:39 / /sys/fs/cgroup/pids rw,nosuid,nodev,noexec,relatime shared:55 - cgroup cgroup rw,pids
|
|
179 124 0:39 / /bedrock/strata/arch/sys/fs/cgroup/pids rw,nosuid,nodev,noexec,relatime shared:55 - cgroup cgroup rw,pids
|
|
178 123 0:39 / /bedrock/strata/fallback/sys/fs/cgroup/pids rw,nosuid,nodev,noexec,relatime shared:55 - cgroup cgroup rw,pids
|
|
177 122 0:39 / /bedrock/strata/gentoo/sys/fs/cgroup/pids rw,nosuid,nodev,noexec,relatime shared:55 - cgroup cgroup rw,pids
|
|
176 121 0:39 / /bedrock/strata/kde/sys/fs/cgroup/pids rw,nosuid,nodev,noexec,relatime shared:55 - cgroup cgroup rw,pids
|
|
180 120 0:40 / /sys/fs/cgroup/perf_event rw,nosuid,nodev,noexec,relatime shared:56 - cgroup cgroup rw,perf_event
|
|
184 124 0:40 / /bedrock/strata/arch/sys/fs/cgroup/perf_event rw,nosuid,nodev,noexec,relatime shared:56 - cgroup cgroup rw,perf_event
|
|
183 123 0:40 / /bedrock/strata/fallback/sys/fs/cgroup/perf_event rw,nosuid,nodev,noexec,relatime shared:56 - cgroup cgroup rw,perf_event
|
|
182 122 0:40 / /bedrock/strata/gentoo/sys/fs/cgroup/perf_event rw,nosuid,nodev,noexec,relatime shared:56 - cgroup cgroup rw,perf_event
|
|
181 121 0:40 / /bedrock/strata/kde/sys/fs/cgroup/perf_event rw,nosuid,nodev,noexec,relatime shared:56 - cgroup cgroup rw,perf_event`
|
|
|
|
const cgroup2Mountinfo = `18 64 0:18 / /sys rw,nosuid,nodev,noexec,relatime shared:6 - sysfs sysfs rw,seclabel
|
|
19 64 0:4 / /proc rw,nosuid,nodev,noexec,relatime shared:5 - proc proc rw
|
|
20 64 0:6 / /dev rw,nosuid shared:2 - devtmpfs devtmpfs rw,seclabel,size=8171204k,nr_inodes=2042801,mode=755
|
|
21 18 0:19 / /sys/kernel/security rw,nosuid,nodev,noexec,relatime shared:7 - securityfs securityfs rw
|
|
22 20 0:20 / /dev/shm rw,nosuid,nodev shared:3 - tmpfs tmpfs rw,seclabel
|
|
23 20 0:21 / /dev/pts rw,nosuid,noexec,relatime shared:4 - devpts devpts rw,seclabel,gid=5,mode=620,ptmxmode=000
|
|
24 64 0:22 / /run rw,nosuid,nodev shared:24 - tmpfs tmpfs rw,seclabel,mode=755
|
|
25 18 0:23 / /sys/fs/cgroup ro,nosuid,nodev,noexec shared:8 - tmpfs tmpfs ro,seclabel,mode=755
|
|
26 25 0:24 / /sys/fs/cgroup/systemd rw,nosuid,nodev,noexec,relatime shared:9 - cgroup2 cgroup rw
|
|
27 18 0:25 / /sys/fs/pstore rw,nosuid,nodev,noexec,relatime shared:20 - pstore pstore rw,seclabel
|
|
28 18 0:26 / /sys/firmware/efi/efivars rw,nosuid,nodev,noexec,relatime shared:21 - efivarfs efivarfs rw
|
|
29 25 0:27 / /sys/fs/cgroup/cpu,cpuacct rw,nosuid,nodev,noexec,relatime shared:10 - cgroup cgroup rw,cpu,cpuacct
|
|
30 25 0:28 / /sys/fs/cgroup/memory rw,nosuid,nodev,noexec,relatime shared:11 - cgroup cgroup rw,memory
|
|
31 25 0:29 / /sys/fs/cgroup/net_cls,net_prio rw,nosuid,nodev,noexec,relatime shared:12 - cgroup cgroup rw,net_cls,net_prio
|
|
32 25 0:30 / /sys/fs/cgroup/blkio rw,nosuid,nodev,noexec,relatime shared:13 - cgroup cgroup rw,blkio
|
|
33 25 0:31 / /sys/fs/cgroup/perf_event rw,nosuid,nodev,noexec,relatime shared:14 - cgroup cgroup rw,perf_event
|
|
34 25 0:32 / /sys/fs/cgroup/hugetlb rw,nosuid,nodev,noexec,relatime shared:15 - cgroup cgroup rw,hugetlb
|
|
35 25 0:33 / /sys/fs/cgroup/freezer rw,nosuid,nodev,noexec,relatime shared:16 - cgroup cgroup rw,freezer
|
|
36 25 0:34 / /sys/fs/cgroup/cpuset rw,nosuid,nodev,noexec,relatime shared:17 - cgroup cgroup rw,cpuset
|
|
37 25 0:35 / /sys/fs/cgroup/devices rw,nosuid,nodev,noexec,relatime shared:18 - cgroup cgroup rw,devices
|
|
38 25 0:36 / /sys/fs/cgroup/pids rw,nosuid,nodev,noexec,relatime shared:19 - cgroup cgroup rw,pids
|
|
61 18 0:37 / /sys/kernel/config rw,relatime shared:22 - configfs configfs rw
|
|
64 0 253:0 / / rw,relatime shared:1 - ext4 /dev/mapper/fedora_dhcp--16--129-root rw,seclabel,data=ordered
|
|
39 18 0:17 / /sys/fs/selinux rw,relatime shared:23 - selinuxfs selinuxfs rw
|
|
40 20 0:16 / /dev/mqueue rw,relatime shared:25 - mqueue mqueue rw,seclabel
|
|
41 20 0:39 / /dev/hugepages rw,relatime shared:26 - hugetlbfs hugetlbfs rw,seclabel
|
|
`
|
|
|
|
func TestGetCgroupMounts(t *testing.T) {
|
|
type testData struct {
|
|
mountInfo string
|
|
root string
|
|
subsystems map[string]bool
|
|
}
|
|
testTable := []testData{
|
|
{
|
|
mountInfo: fedoraMountinfo,
|
|
root: "/",
|
|
subsystems: map[string]bool{
|
|
"cpuset": false,
|
|
"cpu": false,
|
|
"cpuacct": false,
|
|
"memory": false,
|
|
"devices": false,
|
|
"freezer": false,
|
|
"net_cls": false,
|
|
"blkio": false,
|
|
"perf_event": false,
|
|
"hugetlb": false,
|
|
},
|
|
},
|
|
{
|
|
mountInfo: systemdMountinfo,
|
|
root: "/system.slice/docker-dc4eaa1a34ec4d593bc0125d31eea823a1d76ae483aeb1409cca80304e34da2e.scope",
|
|
subsystems: map[string]bool{
|
|
"cpuset": false,
|
|
"cpu": false,
|
|
"cpuacct": false,
|
|
"memory": false,
|
|
"devices": false,
|
|
"freezer": false,
|
|
"net_cls": false,
|
|
"blkio": false,
|
|
"perf_event": false,
|
|
},
|
|
},
|
|
{
|
|
mountInfo: bedrockMountinfo,
|
|
root: "/",
|
|
subsystems: map[string]bool{
|
|
"cpuset": false,
|
|
"cpu": false,
|
|
"cpuacct": false,
|
|
"memory": false,
|
|
"devices": false,
|
|
"freezer": false,
|
|
"net_cls": false,
|
|
"blkio": false,
|
|
"perf_event": false,
|
|
},
|
|
},
|
|
}
|
|
for _, td := range testTable {
|
|
mi := bytes.NewBufferString(td.mountInfo)
|
|
cgMounts, err := getCgroupMountsHelper(td.subsystems, mi, false)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
cgMap := make(map[string]Mount)
|
|
for _, m := range cgMounts {
|
|
for _, ss := range m.Subsystems {
|
|
cgMap[ss] = m
|
|
}
|
|
}
|
|
for ss := range td.subsystems {
|
|
m, ok := cgMap[ss]
|
|
if !ok {
|
|
t.Fatalf("%s not found", ss)
|
|
}
|
|
if m.Root != td.root {
|
|
t.Fatalf("unexpected root for %s: %s", ss, m.Root)
|
|
}
|
|
if !strings.HasPrefix(m.Mountpoint, "/sys/fs/cgroup/") && !strings.Contains(m.Mountpoint, ss) {
|
|
t.Fatalf("unexpected mountpoint for %s: %s", ss, m.Mountpoint)
|
|
}
|
|
var ssFound bool
|
|
for _, mss := range m.Subsystems {
|
|
if mss == ss {
|
|
ssFound = true
|
|
break
|
|
}
|
|
}
|
|
if !ssFound {
|
|
t.Fatalf("subsystem %s not found in Subsystems field %v", ss, m.Subsystems)
|
|
}
|
|
}
|
|
}
|
|
}
|
|
|
|
func BenchmarkGetCgroupMounts(b *testing.B) {
|
|
subsystems := map[string]bool{
|
|
"cpuset": false,
|
|
"cpu": false,
|
|
"cpuacct": false,
|
|
"memory": false,
|
|
"devices": false,
|
|
"freezer": false,
|
|
"net_cls": false,
|
|
"blkio": false,
|
|
"perf_event": false,
|
|
"hugetlb": false,
|
|
}
|
|
b.ResetTimer()
|
|
for i := 0; i < b.N; i++ {
|
|
b.StopTimer()
|
|
mi := bytes.NewBufferString(fedoraMountinfo)
|
|
b.StartTimer()
|
|
if _, err := getCgroupMountsHelper(subsystems, mi, false); err != nil {
|
|
b.Fatal(err)
|
|
}
|
|
}
|
|
}
|
|
|
|
func TestParseCgroupString(t *testing.T) {
|
|
testCases := []struct {
|
|
input string
|
|
expectedError error
|
|
expectedOutput map[string]string
|
|
}{
|
|
{
|
|
// Taken from a CoreOS instance running systemd 225 with CPU/Mem
|
|
// accounting enabled in systemd
|
|
input: `9:blkio:/
|
|
8:freezer:/
|
|
7:perf_event:/
|
|
6:devices:/system.slice/system-sshd.slice
|
|
5:cpuset:/
|
|
4:cpu,cpuacct:/system.slice/system-sshd.slice/sshd@126-10.240.0.15:22-xxx.yyy.zzz.aaa:33678.service
|
|
3:net_cls,net_prio:/
|
|
2:memory:/system.slice/system-sshd.slice/sshd@126-10.240.0.15:22-xxx.yyy.zzz.aaa:33678.service
|
|
1:name=systemd:/system.slice/system-sshd.slice/sshd@126-10.240.0.15:22-xxx.yyy.zzz.aaa:33678.service`,
|
|
expectedOutput: map[string]string{
|
|
"name=systemd": "/system.slice/system-sshd.slice/sshd@126-10.240.0.15:22-xxx.yyy.zzz.aaa:33678.service",
|
|
"blkio": "/",
|
|
"freezer": "/",
|
|
"perf_event": "/",
|
|
"devices": "/system.slice/system-sshd.slice",
|
|
"cpuset": "/",
|
|
"cpu": "/system.slice/system-sshd.slice/sshd@126-10.240.0.15:22-xxx.yyy.zzz.aaa:33678.service",
|
|
"cpuacct": "/system.slice/system-sshd.slice/sshd@126-10.240.0.15:22-xxx.yyy.zzz.aaa:33678.service",
|
|
"net_cls": "/",
|
|
"net_prio": "/",
|
|
"memory": "/system.slice/system-sshd.slice/sshd@126-10.240.0.15:22-xxx.yyy.zzz.aaa:33678.service",
|
|
},
|
|
},
|
|
{
|
|
input: `malformed input`,
|
|
expectedError: fmt.Errorf(`invalid cgroup entry: must contain at least two colons: malformed input`),
|
|
},
|
|
}
|
|
|
|
for ndx, testCase := range testCases {
|
|
out, err := parseCgroupFromReader(strings.NewReader(testCase.input))
|
|
if err != nil {
|
|
if testCase.expectedError == nil || testCase.expectedError.Error() != err.Error() {
|
|
t.Errorf("%v: expected error %v, got error %v", ndx, testCase.expectedError, err)
|
|
}
|
|
} else {
|
|
if !reflect.DeepEqual(testCase.expectedOutput, out) {
|
|
t.Errorf("%v: expected output %v, got error %v", ndx, testCase.expectedOutput, out)
|
|
}
|
|
}
|
|
}
|
|
|
|
}
|
|
|
|
func TestIgnoreCgroup2Mount(t *testing.T) {
|
|
subsystems := map[string]bool{
|
|
"cpuset": false,
|
|
"cpu": false,
|
|
"cpuacct": false,
|
|
"memory": false,
|
|
"devices": false,
|
|
"freezer": false,
|
|
"net_cls": false,
|
|
"blkio": false,
|
|
"perf_event": false,
|
|
"pids": false,
|
|
"name=systemd": false,
|
|
}
|
|
|
|
mi := bytes.NewBufferString(cgroup2Mountinfo)
|
|
cgMounts, err := getCgroupMountsHelper(subsystems, mi, false)
|
|
if err != nil {
|
|
t.Fatal(err)
|
|
}
|
|
for _, m := range cgMounts {
|
|
if m.Mountpoint == "/sys/fs/cgroup/systemd" {
|
|
t.Errorf("parsed a cgroup2 mount at /sys/fs/cgroup/systemd instead of ignoring it")
|
|
}
|
|
}
|
|
}
|
|
|
|
func TestGetClosestMountpointAncestor(t *testing.T) {
|
|
fakeMountInfo := ` 18 24 0:17 / /sys rw,nosuid,nodev,noexec,relatime - sysfs sysfs rw
|
|
100 99 1:31 / /foo/bar rw,relatime - fake fake rw,fake
|
|
100 99 1:31 / /foo/bar/baz2 rw,relatime - fake fake rw,fake
|
|
100 99 1:31 / /foo/bar/baz rw,relatime - fake fake rw,fake
|
|
100 99 1:31 / /foo/bar/bazza rw,relatime - fake fake rw,fake
|
|
100 99 1:31 / /foo/bar/baz3 rw,relatime - fake fake rw,fake
|
|
100 99 1:31 / /foo rw,relatime - fake fake rw,fake
|
|
100 99 1:31 / /unrelated rw,relatime - fake fake rw,fake
|
|
100 99 1:31 / / rw,relatime - fake fake rw,fake
|
|
`
|
|
testCases := []struct {
|
|
input string
|
|
output string
|
|
}{
|
|
{input: "/foo/bar/baz/a/b/c", output: "/foo/bar/baz"},
|
|
{input: "/foo/bar/baz", output: "/foo/bar/baz"},
|
|
{input: "/foo/bar/bazza", output: "/foo/bar/bazza"},
|
|
{input: "/a/b/c/d", output: "/"},
|
|
}
|
|
|
|
for _, c := range testCases {
|
|
mountpoint := GetClosestMountpointAncestor(c.input, fakeMountInfo)
|
|
if mountpoint != c.output {
|
|
t.Errorf("expected %s, got %s", c.output, mountpoint)
|
|
}
|
|
}
|
|
}
|
|
|
|
func TestFindCgroupMountpointAndRoot(t *testing.T) {
|
|
fakeMountInfo := `
|
|
35 27 0:29 / /foo rw,nosuid,nodev,noexec,relatime shared:18 - cgroup cgroup rw,devices
|
|
35 27 0:29 / /sys/fs/cgroup/devices rw,nosuid,nodev,noexec,relatime shared:18 - cgroup cgroup rw,devices
|
|
`
|
|
testCases := []struct {
|
|
cgroupPath string
|
|
output string
|
|
}{
|
|
{cgroupPath: "/sys/fs", output: "/sys/fs/cgroup/devices"},
|
|
{cgroupPath: "", output: "/foo"},
|
|
}
|
|
|
|
for _, c := range testCases {
|
|
mountpoint, _, _ := findCgroupMountpointAndRootFromReader(strings.NewReader(fakeMountInfo), c.cgroupPath, "devices")
|
|
if mountpoint != c.output {
|
|
t.Errorf("expected %s, got %s", c.output, mountpoint)
|
|
}
|
|
}
|
|
}
|
|
|
|
func TestGetHugePageSizeImpl(t *testing.T) {
|
|
|
|
testCases := []struct {
|
|
inputFiles []string
|
|
outputPageSizes []string
|
|
err error
|
|
}{
|
|
{
|
|
inputFiles: []string{"hugepages-1048576kB", "hugepages-2048kB", "hugepages-32768kB", "hugepages-64kB"},
|
|
outputPageSizes: []string{"1GB", "2MB", "32MB", "64KB"},
|
|
err: nil,
|
|
},
|
|
{
|
|
inputFiles: []string{},
|
|
outputPageSizes: []string{},
|
|
err: nil,
|
|
},
|
|
{
|
|
inputFiles: []string{"hugepages-a"},
|
|
outputPageSizes: []string{},
|
|
err: errors.New("invalid size: 'a'"),
|
|
},
|
|
}
|
|
|
|
for _, c := range testCases {
|
|
pageSizes, err := getHugePageSizeFromFilenames(c.inputFiles)
|
|
if len(pageSizes) != 0 && len(c.outputPageSizes) != 0 && !reflect.DeepEqual(pageSizes, c.outputPageSizes) {
|
|
t.Errorf("expected %s, got %s", c.outputPageSizes, pageSizes)
|
|
}
|
|
if err != nil && err.Error() != c.err.Error() {
|
|
t.Errorf("expected error %s, got %s", c.err, err)
|
|
}
|
|
}
|
|
}
|