* Richard Palethorpe <rpalethorpe@xxxxxxxx>, 2021-07-08, 11:08:
Please see upstream commit:
commit dd83c161fbcc5d8be637ab159c0de015cbff5ba4
Author: zhongjiang <zhongjiang@xxxxxxxxxx>
Date: Mon Jul 10 15:53:01 2017 -0700
kernel/exit.c: avoid undefined behaviour when calling wait4()
It avoids negating INT_MIN by returning early with ESRCH.
That sounds like a bug in the kernel, though?POSIX says the error should be ECHILD if "the process group specified by pid does not exist".
-- Jakub Wilk
