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From: Laurent Pinchart <laurentp@cse-semaphore.com>
To: Paul Fulghum <paulkf@microgate.com>
Cc: Alan Cox <alan@lxorguk.ukuu.org.uk>, linux-kernel@vger.kernel.org
Subject: Re: Serial buffer memory leak
Date: Wed, 8 Aug 2007 16:28:36 +0200	[thread overview]
Message-ID: <200708081628.36897.laurentp@cse-semaphore.com> (raw)
In-Reply-To: <1186582307.3394.3.camel@x2.microgate.com>

On Wednesday 08 August 2007 16:11, Paul Fulghum wrote:
> On Wed, 2007-08-08 at 14:45 +0100, Alan Cox wrote:
> > > I'm not familiar enough with the tty code to decide what the proper fix
> > > should be. I'll try to write a patch if someone could point me in the
> > > right direction.
> >
> > Something like this perhaps ?
>
> That looks good, a little better than the solution
> I was first considering. I'm compiling now.

The patch fixes the problem (at least under the test conditions that lead me 
to discover it in the first place). Thanks Alan.

> This was a nasty bug for me to introduce :-(
> Good work in finding this Laurent.

Thanks. It was a lot of work troubleshooting the problem. The bug report I got 
was along the lines of "after the 256th incoming modem call, the application 
doesn't receive data payloads anymore, but AT commands are still answered". I 
guess the challenge is what made it fun.

-- 
Laurent Pinchart
CSE Semaphore Belgium

Chaussée de Bruxelles, 732A
B-1410 Waterloo
Belgium

T +32 (2) 387 42 59
F +32 (2) 387 42 75

  reply	other threads:[~2007-08-08 14:28 UTC|newest]

Thread overview: 10+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2007-08-08  9:58 Laurent Pinchart
2007-08-08 13:45 ` Alan Cox
2007-08-08 14:11   ` Paul Fulghum
2007-08-08 14:28     ` Laurent Pinchart [this message]
2007-08-08 14:52       ` Paul Fulghum
2007-08-08 15:16         ` Alan Cox
2007-08-08 15:32           ` Alan Cox
2007-08-08 17:35             ` Paul Fulghum
2007-08-08 14:26   ` Frederik Deweerdt
2007-08-08 14:13 ` Paul Fulghum

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