linux-kernel - Re: [PATCH] tty: add lockdep annotations

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Message-ID: <20120602125723.5b057570@pyramind.ukuu.org.uk>
Date:	Sat, 2 Jun 2012 12:57:23 +0100
From:	Alan Cox <alan@...rguk.ukuu.org.uk>
To:	Eric Dumazet <eric.dumazet@...il.com>
Cc:	Linus Torvalds <torvalds@...ux-foundation.org>,
	Alan Cox <alan@...ux.intel.com>,
	"linux-kernel@...r.kernel.org" <linux-kernel@...r.kernel.org>,
	Jens Axboe <jaxboe@...ionio.com>
Subject: Re: [PATCH] tty: add lockdep annotations

On Sat, 02 Jun 2012 10:01:42 +0200
Eric Dumazet <eric.dumazet@...il.com> wrote:

> On Sat, 2012-06-02 at 09:55 +0200, Eric Dumazet wrote:
> > From: Eric Dumazet <edumazet@...gle.com>
> > 
> > On Sat, 2012-06-02 at 09:17 +0200, Eric Dumazet wrote:
> > 
> > > 
> > > Here is the patch I am currently testing (need to boot the machine ~50
> > > times to make sure it is the right fix)
> > 
> > Seems good, but am still doing reboots to make sure.
> 
> Nope, still get a crash at 15th boot.
> 
> I have to run.

I'll have a look at this ASAP - I think the driver ref counting side is a
red herring but I'll build an Ubuntu 12 setup and try and replicate the
crash once I'm back at work (its a national holiday here Sat-Tue for the
English queens jubilee)
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