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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
Date: Wed, 25 Oct 2017 17:49:54 +0300 (EEST)	[thread overview]
Message-ID: <alpine.LRH.2.21.1710251748170.10071@math.ut.ee> (raw)
In-Reply-To: <20171025133730.GA5487@red-moon>

> > > > 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)

  reply	other threads:[~2017-10-25 14:50 UTC|newest]

Thread overview: 11+ messages / expand[flat|nested]  mbox.gz  Atom feed  top
2017-10-25  8:05 alpha boot hang - 4.14-rc* regression Meelis Roos
2017-10-25  8:12 ` Meelis Roos
2017-10-25  8:43   ` Meelis Roos
2017-10-25  9:21     ` Lorenzo Pieralisi
2017-10-25 12:21       ` Meelis Roos
2017-10-25 13:37         ` Lorenzo Pieralisi
2017-10-25 14:49           ` Meelis Roos [this message]
2017-10-25 15:14             ` Lorenzo Pieralisi
2017-10-25 15:54               ` Meelis Roos
2017-10-25 18:01               ` Meelis Roos
2017-10-26  8:54                 ` Lorenzo Pieralisi

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