Re: 4.9.0 regression in pipe-backed iov_iter with systemd-nspawn

From: Alan J. Wylie
Date: Thu Jan 12 2017 - 15:39:17 EST


at 20:31 on Thu 12-Jan-2017 Al Viro (viro@xxxxxxxxxxxxxxxxxx) wrote:
> 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.

That's already in 4.9.3, which still has the problem.

--
Alan J. Wylie http://www.wylie.me.uk/

Dance like no-one's watching. / Encrypt like everyone is.
Security is inversely proportional to convenience