linux-kernel - Re: PROBLEM: Race condition in tty buffer's function flush_to

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Message-ID: <20111107184103.76eb35d2@lxorguk.ukuu.org.uk>
Date:	Mon, 7 Nov 2011 18:41:03 +0000
From:	Alan Cox <alan@...rguk.ukuu.org.uk>
To:	Alan Cox <alan@...rguk.ukuu.org.uk>
Cc:	Ilya Zykov <ilya@...x.ru>, Alan Cox <alan@...ux.intel.com>,
	Greg Kroah-Hartman <gregkh@...e.de>,
	linux-kernel@...r.kernel.org
Subject: Re: PROBLEM: Race condition in tty buffer's function
 flush_to_ldisc().

> see why the paths you indicate cause it ? If you make mthread a cpu
> struct variable and add a WARN_ON(1) in the error case do you get any

I mean tty struct (ie tty->mthread) of course sorry
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