Date: Thu, 26 Jun 2003 10:07:17 -0700
From: Andrew Morton <akpm@digeo.com>
To: Hiroshi Inoue <inoueh@uranus.dti.ne.jp>
Cc: linux-kernel@vger.kernel.org
Subject: Re: [PATCH] Repeatable kernel crash in tty_io.c (2.5.73 & 2.4.21)
Message-Id: <20030626100717.4607e60b.akpm@digeo.com>
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References: <20030627001520.5237.INOUEH@uranus.dti.ne.jp>
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Hiroshi Inoue <inoueh@uranus.dti.ne.jp> wrote:
>
> Hi, 
> 
> I found that kernel 2.5.73 (and also 2.4.21) crashed 
> in drivers/char/tty_io.c at situation described below.
> 
> 1. login to tty2 (not tty1)
> 2. start kon (Kanji cONsole emulator, console which support
>    Japanese characters)
> 3. exit kon
> 4. logout
> 
> This crash is repeatable.
> I use Redhat 9 on ThinkPad T20.

whee, it dies most gruesomely.

However I fear that your fix may not be addressing the real source of the
problem.  Why do we get to running release_mem() against a tty which isn't
on the list in the first place?  Any ideas?

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