linux-kernel - RE: Regression: Kernel unbootable since commit 4d6b4e6

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Date:	Mon, 21 Dec 2015 21:24:29 +0000
From:	"Busch, Keith" <keith.busch@...el.com>
To:	Larry Finger <Larry.Finger@...inger.net>
CC:	LKML <linux-kernel@...r.kernel.org>,
	Jiang Liu <jiang.liu@...ux.intel.com>,
	Hanjun Guo <hanjun.guo@...aro.org>,
	"Bjorn Helgaas" <bhelgaas@...gle.com>,
	"Wysocki, Rafael J" <rafael.j.wysocki@...el.com>
Subject: RE: Regression: Kernel unbootable since commit 4d6b4e6 - found by
 bisection

> Since early in the 4.3-rcx series, my Dell Latitude D600 with a 32-bit kernel
> fails to boot. Unfortunately, I did not discover this until late in the 4.4-rcX
> cycle. The symptom is that the kernel echos the "Loading initial ramdisk ..."
> message and then hangs.
> 
> The problem was bisected to commit 4d6b4es" x86/PCI/ACPI: Use common interface
> to support PCI host bridge" from Jiang Liu <jiang.liu@...ux.intel.com>.  The
> bisection was tested by reverting the commit in question. I have not yet tried
> to analyze the patch to see where it might be going wrong.
> 
> Please suggest any trial prints to debug this issue.

Does this fix help you? It is included with the most recent 4.4 rc.

https://git.kernel.org/cgit/linux/kernel/git/torvalds/linux.git/commit/?id=727ae8be30b428082d3519817f4fb98b712d457d

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