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pid_namespaces.7: Mention PR_SET_CHILD_SUBREAPER in discussion of reparenting to init 

Reported-by: Vasily Kulikov <segoon@openwall.com>
Signed-off-by: Michael Kerrisk <mtk.manpages@gmail.com>
This commit is contained in:
Michael Kerrisk 2013-03-01 09:02:26 +01:00
parent fa88d1a483
commit 2a4b78e7e2
1 changed files with 7 additions and 2 deletions
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9
man7/pid_namespaces.7
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@ -60,9 +60,14 @@ using the
.BR CLONE_NEWPID
flag) has the PID 1, and is the "init" process for the namespace (see
.BR init (1)).
Children that are orphaned within the namespace will be reparented
A child process that is orphaned within the namespace will be reparented
to this process rather than
.BR init (1).
.BR init (1)
(unless one of the ancestors of the child
in the same PID namespace employed the
.BR prctl (2)
.B PR_GET_CHILD_SUBREAPER
command to mark itself as the reaper of orphaned descendant processes).
If the "init" process of a PID namespace terminates,
the kernel terminates all of the processes in the namespace via a