linux-kernel - Re: 4.9.0 regression in pipe-backed iov

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Message-ID: <20170112203119.GZ1555@ZenIV.linux.org.uk>
Date:   Thu, 12 Jan 2017 20:31:19 +0000
From:   Al Viro <viro@...IV.linux.org.uk>
To:     "Alan J. Wylie" <alan@...ie.me.uk>
Cc:     Thorsten Leemhuis <regressions@...mhuis.info>,
        linux-kernel <linux-kernel@...r.kernel.org>
Subject: Re: 4.9.0 regression in pipe-backed iov_iter with systemd-nspawn

On Thu, Jan 12, 2017 at 08:26:52PM +0000, Alan J. Wylie wrote:
> 
> Some time after 4.9.0 was released, I noticed that a cron job running
> systemd-nspawn was hanging trying to send mail.

Check if 8e54cadab447 (fix default_file_splice_read()) fixes it.