From: Rusty Russell <rusty@rustcorp.com.au>
To: Tim Hockin <thockin@hockin.org>
Cc: Nick Piggin <piggin@cyberone.com.au>, Rusty Russell <rusty@au1.ibm.com>,
       linux-kernel@vger.kernel.org, torvalds@osdl.org, akpm@osdl.org,
       rml@tech9.net
Subject: Re: CPU Hotplug: Hotplug Script And SIGPWR 
In-reply-to: Your message of "Tue, 20 Jan 2004 23:08:44 -0800."
             <20040121070844.GA31807@hockin.org> 
Date: Thu, 22 Jan 2004 16:29:39 +1100
Message-Id: <20040122071637.6C38D2C0F8@lists.samba.org>
Sender: linux-kernel-owner@vger.kernel.org
Content-Length: 901
Lines: 21

In message <20040121070844.GA31807@hockin.org> you write:
> Process A has now discarded useful potentially VALUABLE information, with no
> way to retrieve it.  The hot plug scripts do not have enough information to
> put things the way they were before.  I can't believe that anyone considers
> this to be OK.

We already established that the process which cares has to listed to
hotplug events.

Userland should handle it *before* telling the kernel to remove the
CPU.  What we're dealing with here is merely a corner case, IMHO worth
neither hysteria nor a great deal of code.

Rusty.
--
  Anyone who quotes me in their sig is an idiot. -- Rusty Russell.
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