linux-kernel - Re: sendfile and EAGAIN

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Message-ID: <CAOPLpQeJB_oEmvgV-DSoZ=aYjD8+8WdkkupBimufqFfz_hrquQ@mail.gmail.com>
Date:	Mon, 4 Mar 2013 19:11:49 -0500
From:	Ulrich Drepper <drepper@...il.com>
To:	Eric Wong <normalperson@...t.net>
Cc:	Eric Dumazet <eric.dumazet@...il.com>,
	Linux Kernel Mailing List <linux-kernel@...r.kernel.org>,
	Al Viro <viro@...iv.linux.org.uk>
Subject: Re: sendfile and EAGAIN

On Mon, Mar 4, 2013 at 5:28 AM, Eric Wong <normalperson@...t.net> wrote:
> If you manage to reproduce it, can you pass an offset to sendfile() and
> see if the offset changed when you get EAGAIN?

I did that and didn't see the offset to change.


> Also, which kernel version are you using?  Perhaps it's triggered
> by memory pressure.

That was with the RHEL6.2 kernel.  I don't have the details as to what
patches are included on top of 2.6.32...
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