linux-kernel - Re: Hang opening a pipe written to by a child, with SIGCHLD

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Message-ID: <20120402202002.GD3029@vicerveza.homeunix.net>
Date:	Mon, 2 Apr 2012 22:20:02 +0200
From:	Lluís Batlle i Rossell <viric@...ic.name>
To:	Shea Levy <shea@...alevy.com>
Cc:	linux-kernel@...r.kernel.org
Subject: Re: Hang opening a pipe written to by a child, with SIGCHLD

On Mon, Apr 02, 2012 at 08:50:57PM +0200, Lluís Batlle i Rossell wrote:
> On Mon, Apr 02, 2012 at 10:49:10AM -0400, Shea Levy wrote:
> > On 04/02/2012 10:46 AM, Lluís Batlle i Rossell wrote:
> > >Can anyone reproduce this?
> > 
> > I've reproduced this on my system as well (3.3). No idea about cause though.
> > 
> 
> Thank you Shea,

All clear. I had a race condition; sorry for the noise. Proper synchronization
through close() in the child and read() = 0 in the parent fixes all.
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