linux-kernel - Re: [PATCH] sysrq: Use SEND_SIG_FORCED instead of force

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Message-ID: <20120327130337.GA7972@lizard>
Date:	Tue, 27 Mar 2012 17:03:37 +0400
From:	Anton Vorontsov <cbouatmailru@...il.com>
To:	Andrew Morton <akpm@...ux-foundation.org>
Cc:	Greg Kroah-Hartman <gregkh@...uxfoundation.org>,
	Oleg Nesterov <oleg@...hat.com>,
	Alan Cox <alan@...ux.intel.com>, linux-kernel@...r.kernel.org
Subject: Re: [PATCH] sysrq: Use SEND_SIG_FORCED instead of force_sig()

On Mon, Mar 26, 2012 at 03:43:03PM -0700, Andrew Morton wrote:
> On Sat, 24 Mar 2012 15:00:24 +0400
[...]
> > > force_sig() can't kill the process if the main thread has already
> > > exited. IOW, it is trivial to create the process which can't be
> > > killed by sysrq.
> > 
> > So, this patch fixes the issue.
[...]
> It's unclear how serious this race is (I'm guessing "not very"), but
> this patch looks like 3.3 material anyway, yes?

Yep, 3.3 looks like a good target.

Thanks,

-- 
Anton Vorontsov
Email: cbouatmailru@...il.com
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