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
probably 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.