linux-kernel - Re: [PATCH 21/23] hvc_console: Fix race between hvc_close and hvc

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Date:	Mon, 7 Feb 2011 23:11:06 +0100
From:	Willy Tarreau <w@....eu>
To:	Anton Blanchard <anton@...ba.org>
Cc:	linux-kernel@...r.kernel.org, stable@...nel.org,
	stable-review@...nel.org, Greg Kroah-Hartman <gregkh@...e.de>,
	Rusty Russell <rusty@...tcorp.com.au>, linuxppc-dev@...abs.org,
	Amit Shah <amit.shah@...hat.com>,
	Alan Cox <alan@...rguk.ukuu.org.uk>
Subject: Re: [PATCH 21/23] hvc_console: Fix race between hvc_close and hvc_remove

Hi Anton,

On Tue, Feb 08, 2011 at 08:16:00AM +1100, Anton Blanchard wrote:
> 
> Hi,
> 
> > From: Amit Shah <amit.shah@...hat.com>
> > 
> > commit e74d098c66543d0731de62eb747ccd5b636a6f4c upstream.
> > 
> > Alan pointed out a race in the code where hvc_remove is invoked. The
> > recent virtio_console work is the first user of hvc_remove().
> 
> I faintly remember this bug caused boot issues and the following patch
> must be applied to fix it.

The patch you pointed was indeed merged just after this one so we should
be OK. Thanks very much for the double check !

Willy

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