From mboxrd@z Thu Jan  1 00:00:00 1970
Return-Path: <linux-kernel-owner@vger.kernel.org>
Received: (majordomo@vger.kernel.org) by vger.kernel.org via listexpand
        id S932217AbdJYOuA (ORCPT <rfc822;w@1wt.eu>);
        Wed, 25 Oct 2017 10:50:00 -0400
Received: from smtp2.it.da.ut.ee ([193.40.5.67]:58329 "EHLO smtp2.it.da.ut.ee"
        rhost-flags-OK-OK-OK-OK) by vger.kernel.org with ESMTP
        id S932095AbdJYOt7 (ORCPT <rfc822;linux-kernel@vger.kernel.org>);
        Wed, 25 Oct 2017 10:49:59 -0400
Date: Wed, 25 Oct 2017 17:49:54 +0300 (EEST)
From: Meelis Roos <mroos@linux.ee>
To: Lorenzo Pieralisi <lorenzo.pieralisi@arm.com>
cc: linux-alpha@vger.kernel.org,
        Linux Kernel list <linux-kernel@vger.kernel.org>,
        linux-pci@vger.kernel.org
Subject: Re: alpha boot hang - 4.14-rc* regression
In-Reply-To: <20171025133730.GA5487@red-moon>
Message-ID: <alpine.LRH.2.21.1710251748170.10071@math.ut.ee>
References: <alpine.LRH.2.21.1710251043170.7098@math.ut.ee> <alpine.LRH.2.21.1710251109150.7098@math.ut.ee> <alpine.LRH.2.21.1710251129520.7098@math.ut.ee> <20171025092159.GA14222@red-moon> <alpine.LRH.2.21.1710251511090.10071@math.ut.ee>
 <20171025133730.GA5487@red-moon>
User-Agent: Alpine 2.21 (LRH 202 2017-01-01)
MIME-Version: 1.0
Content-Type: text/plain; charset=US-ASCII
Sender: linux-kernel-owner@vger.kernel.org
List-ID: <linux-kernel.vger.kernel.org>
X-Mailing-List: linux-kernel@vger.kernel.org

> > > > removing libata modules and rebooting fixes it - so it seems to be 
> > > > loading of libata.
> > > 
> > > Can you please cherry-pick:
> > > 
> > > commit b1f9e5e355e9 ("ide: fix IRQ assignment for PCI bus order probing")
> > > 
> > > from mainline and let us know if that solves the issue ?
> > 
> > No, still breaks the same way (b1f9e5e355e9 patched on top of 
> > 0e4c2eeb758a).
> > 
> > 4.14.0-rc5-00095-g1c9fec470b81 was also still broken the same way (tried 
> > on Sunday).
> 
> I am not sure I patched the right sys file but if I did, does the patch
> below help ?
> 
> I think that at sata driver binding time the kernel finds a freed
> pointer in the host bridge map_irq() hook and that's where things
> go wrong.
> 
> Please let me know if that's the right sys file, it is a mechanical
> change and making it for other sys file should be reasonably simple.
> 
> Lorenzo
> 
> -- >8 --
> diff --git a/arch/alpha/kernel/sys_dp264.c b/arch/alpha/kernel/sys_dp264.c

"Booting GENERIC on Tsunami variation Webbrick using machine vector 
Webbrick from SRM"

Seems to be the correct file - tsunami is referenced from this file and 
the IRQ-s are DP264.

But the patch does not make a difference :(

-- 
Meelis Roos (mroos@linux.ee)