LDP
/
man-pages
mirror of https://github.com/mkerrisk/man-pages
0
1
Fork 0
Code Releases Activity

pid_namespaces.7: /proc shows mounts according to PID namespace of mounting process 

Reported-by: Eric W. Biederman <ebiederm@xmission.com>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
This commit is contained in:
Michael Kerrisk 2013-03-01 09:49:21 +01:00
parent 805685dc1b
commit bac6162841
1 changed files with 15 additions and 6 deletions
Show Stats Download Patch File Download Diff File Expand all files Collapse all files

21
man7/pid_namespaces.7
View File

@ -225,6 +225,15 @@ the calling thread.
.\" ============================================================
.\"
.SS /proc and PID namespaces
A
.I /proc
file system shows (in the
.I /proc/PID
directories) only processes visible in the PID namespace
of the process that performed the mount, even if the
.I /proc
file system is viewed from processes in other namespaces.
After creating a new PID namespace,
it is useful for the child to change its root directory
and mount a new procfs instance at
@ -232,12 +241,6 @@ and mount a new procfs instance at
so that tools such as
.BR ps (1)
work correctly.
From a shell, the command to mount
.I /proc
is:
$ mount -t proc proc /proc
If a new mount namespace is simultaneously created by including
.BR CLONE_NEWNS
in the
@ -250,6 +253,12 @@ then it isn't necessary to change the root directory:
a new procfs instance can be mounted directly over
.IR /proc .
From a shell, the command to mount
.I /proc
is:
$ mount -t proc proc /proc
Calling
.BR readlink (2)
on the path