Re: [RFC][PATCH] ps command race fix take2 [1/4] list token

[email protected] wrote:

I almost removed the tasklist_lock from all read paths.  But as it
happens sending a signal to a process group is an atomic operation
with respect to fork so that path has to take the lock, or else
we get places where "kill -9 -pgrp" fails to kill every process in
the process group.  Which is even worse.

Can't that be fixed by adding a per-pgrp lock, and having both fork()/clone() and kill(-pgrp) take that lock?

--
error compiling committee.c: too many arguments to function

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