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Re: ptrace improvement: PTRACE_O_INHERIT
On 02/16, Roland McGrath wrote:
> > Even tgkill() can't 100% protect against PID reuse, but I agree it is better.
> If the process-wide PID (tgid) is not reused
> then tgkill does protect completely against TID reuse.
How? sooner or later the process which creates/destroys a thread
in a loop will reuse some pid number.
But probably you meant that tgkill() guarantees it is still in
the same process, in this case I agree.