Linux 3.18 no longer boots under Xen, Xen CI dropping it

From: Ian Jackson <ian.jackson@citrix.com>
To: <stable@vger.kernel.org>
Cc: Jan Beulich <JBeulich@suse.com>, Wei Liu <wei.liu2@citrix.com>,
	Lars Kurth <lars.kurth@citrix.com>,
	Paul Durrant <Paul.Durrant@citrix.com>,
	"Stefano Stabellini" <sstabellini@kernel.org>,
	xen-devel <xen-devel@lists.xenproject.org>,
	Boris Ostrovsky <boris.ostrovsky@oracle.com>,
	Konrad Rzeszutek Wilk <konrad.wilk@oracle.com>,
	Juergen Gross <jgross@suse.com>
Subject: Linux 3.18 no longer boots under Xen, Xen CI dropping it
Date: Wed, 29 May 2019 16:57:54 +0100	[thread overview]
Message-ID: <23790.44034.186393.25330@mariner.uk.xensource.com> (raw)
In-Reply-To: <5CE2B0DA0200007800230A08@prv1-mh.provo.novell.com>

Linux 3.18 no longer boots under Xen.

This has been true for over half a year.  The Xen project CI has been
sending automatic mails including bisection reports (see below).
I emailed Xen kernel folks and got no takers for fixing this.

Unless this is fixed soon, or at least someone shows some inclination
to investigate this regression, I intend to drop all testing of this
"stable" branch.  It has rotted and no-one is fixing it.

> >> > *** Found and reproduced problem changeset ***
> >> > 
> >> >   Bug is in tree:  linux 
> > git://git.kernel.org/pub/scm/linux/kernel/git/stable/linux-stable.git
> >> >   Bug introduced:  6b1ae527b1fdee86e81da0cb26ced75731c6c0fa
> >> >   Bug not present: ba6984fc0162f24a510ebc34e881b546b69c553b
> >> >   Last fail repro: http://logs.test-lab.xenproject.org/osstest/logs/136574/ 
> > 
> > It seems that there is something wrong with the IGB driver.

Additionally, Jan Beulich writes:
> Which in turn reminds me of a patch of mine that was backported
> (and spotted by an earlier bisection), and that I've suggested
> (twice already iirc) was either backported in error, or without some
> further necessary changes. Iirc the stable tree maintainer for that
> branch was Cc-ed back then, and if so I'd conclude he doesn't care.

Thanks,
Ian.