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| author | Michael Kerrisk <mtk.manpages@gmail.com> | 2017-08-19 10:56:06 +0200 |
|---|---|---|
| committer | Michael Kerrisk <mtk.manpages@gmail.com> | 2017-08-19 13:47:27 +0200 |
| commit | 9c40f2b9ba935b423a6c31ec4c252c3afdee696c (patch) | |
| tree | 34b69daa340b0902f39c0bbbeeee84e53efecdbb /man7/cgroup_namespaces.7 | |
| parent | 010c75a2bbe2768e27998d476da04f0b23084234 (diff) | |
| download | man-pages-9c40f2b9ba935b423a6c31ec4c252c3afdee696c.tar.gz | |
random.4, gai.conf.5, slabinfo.5, cgroup_namespaces.7, feature_test_macros.7, keyrings.7, locale.7, man-pages.7, sock_diag.7: ffix
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
Diffstat (limited to 'man7/cgroup_namespaces.7')
| -rw-r--r-- | man7/cgroup_namespaces.7 | 8 |
1 files changed, 0 insertions, 8 deletions
diff --git a/man7/cgroup_namespaces.7 b/man7/cgroup_namespaces.7 index f2ad7c343b..959ce01690 100644 --- a/man7/cgroup_namespaces.7 +++ b/man7/cgroup_namespaces.7 @@ -88,13 +88,11 @@ Next, we use .BR unshare (1) to create a process running a new shell in new cgroup and mount namespaces: .PP -.nf .EX .in +4n # \fBunshare \-Cm bash\fP .in .EE -.fi .PP We then inspect the .IR /proc/[pid]/cgroup @@ -105,7 +103,6 @@ command, a process that is in the original cgroup namespace with PID 1), and a process in a sibling cgroup .RI ( sub2 ): .PP -.nf .EX .in +4n $ \fBcat /proc/self/cgroup | grep freezer\fP @@ -116,7 +113,6 @@ $ \fBcat /proc/20124/cgroup | grep freezer\fP 7:freezer:/../sub2 .in .EE -.fi .PP From the output of the first command, we see that the freezer cgroup membership of the new shell @@ -136,14 +132,12 @@ However, when we look in .IR /proc/self/mountinfo we see the following anomaly: .PP -.nf .EX .in +4n # \fBcat /proc/self/mountinfo | grep freezer\fP 155 145 0:32 /.. /sys/fs/cgroup/freezer ... .in .EE -.fi .PP The fourth field of this line .RI ( /.. ) @@ -159,7 +153,6 @@ filesystem corresponding to our initial shell process's cgroup namespace We need to remount the freezer cgroup filesystem inside this cgroup namespace, after which we see the expected results: .PP -.nf .EX .in +4n # \fBmount \-\-make\-rslave /\fP # Don't propagate mount events @@ -170,7 +163,6 @@ inside this cgroup namespace, after which we see the expected results: 155 145 0:32 / /sys/fs/cgroup/freezer rw,relatime ... .in .EE -.fi .PP Use of cgroup namespaces requires a kernel that is configured with the .B CONFIG_CGROUPS |