linux-kernel - Re: [PATCH v2 1/2] TTY: don't allow reopen when ldisc is changing

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Message-ID: <20101129222342.GL15818@bombadil.infradead.org>
Date:	Mon, 29 Nov 2010 17:23:42 -0500
From:	Kyle McMartin <kyle@...artin.ca>
To:	Greg KH <greg@...ah.com>
Cc:	Jiri Slaby <jslaby@...e.cz>, gregkh@...e.de,
	linux-kernel@...r.kernel.org, jirislaby@...il.com,
	Kyle McMartin <kyle@...artin.ca>,
	Alan Cox <alan@...rguk.ukuu.org.uk>
Subject: Re: [PATCH v2 1/2] TTY: don't allow reopen when ldisc is changing

On Mon, Nov 29, 2010 at 01:48:37PM -0800, Greg KH wrote:
> >  [<ffffffff8103b189>] warn_slowpath_common+0x80/0x98
> >  [<ffffffff8103b1b6>] warn_slowpath_null+0x15/0x17
> >  [<ffffffff8128a3ab>] tty_open+0x2a2/0x49a
> >  [<ffffffff810fd53f>] chrdev_open+0x11d/0x146
> 
> Are these two patches also for the .36 kernel?  Kyle, you were seeing
> the warnings show up there, right?
> 

Yup, I guess they turned up when the BKL went away. (I reverted the BKL
removal patches on top of 2.6.36, and never saw this WARN_ON trigger at
least.)

--Kyle
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