proc_tid_children(5) File Formats Manual proc_tid_children(5)
NAME
/proc/tid/children - child tasks
DESCRIPTION
/proc/tid/children (since Linux 3.5)
A space-separated list of child tasks of this task. Each child
task is represented by its TID.
This option is intended for use by the checkpoint-restore (CRIU)
system, and reliably provides a list of children only if all of
the child processes are stopped or frozen. It does not work
properly if children of the target task exit while the file is
being read! Exiting children may cause non-exiting children to
be omitted from the list. This makes this interface even more
unreliable than classic PID-based approaches if the inspected
task and its children aren't frozen, and most code should proba-
bly not use this interface.
Until Linux 4.2, the presence of this file was governed by the
CONFIG_CHECKPOINT_RESTORE kernel configuration option. Since
Linux 4.2, it is governed by the CONFIG_PROC_CHILDREN option.
SEE ALSO
proc(5)
Linux man-pages 6.9.1 2024-05-02 proc_tid_children(5)
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