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Date: Fri, 14 Dec 2001 12:40:16 -0800 (PST)
From: Linus Torvalds <torvalds@transmeta.com>
To: Simon Kirby <sim@netnation.com>
cc: <Andries.Brouwer@cwi.nl>, <linux-kernel@vger.kernel.org>
Subject: Re: [PATCH] kill(-1,sig)
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On Fri, 14 Dec 2001, Simon Kirby wrote:
>
> On Fri, Dec 14, 2001 at 05:34:48PM +0000, Andries.Brouwer@cwi.nl wrote:
>
> > + * POSIX (2001) specifies "If pid is -1, sig shall be sent to all processes
> > + * (excluding an unspecified set of system processes) for which the process
> > + * has permission to send that signal."
> > + * So, probably the process should also signal itself.
> > -			if (p->pid > 1 && p != current) {
> > +			if (p->pid > 1) {
>
> Argh, I hate this.  I fail to see what progress a process could make if
> it kills everything _and_ itself.  I frequently use "kill -9 -1" to kill
> everything except my shell, and now I'll have to kill everything else
> manually, one by one.

I do agree, I've used "kill -9 -1" myself.

However, let's see how problematic it is to try to follow it (in 2.5.x,
not 2.4.x) and if people really complain.

Count one for the complaints, but I want more to overrule a published
standard.

(Of course, a language lawyer will call "self" a "system process",
although I cannot for the life of me really see what kind of excuse we
would come up with to do se ;)

		Linus

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