linux-kernel - Re: Info: mapping multiple BARs. Your kernel is fine.

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Date:	Wed, 16 Apr 2014 20:18:43 -0400
From:	Dave Jones <davej@...hat.com>
To:	Bjorn Helgaas <bhelgaas@...gle.com>
Cc:	Borislav Petkov <bp@...en8.de>,
	"Rafael J. Wysocki" <rjw@...ysocki.net>,
	"Zhang, Rui" <rui.zhang@...el.com>,
	"Lu, Aaron" <aaron.lu@...el.com>,
	lkml <linux-kernel@...r.kernel.org>,
	"x86@...nel.org" <x86@...nel.org>,
	Linux PCI <linux-pci@...r.kernel.org>,
	ACPI Devel Maling List <linux-acpi@...r.kernel.org>,
	Yinghai Lu <yinghai@...nel.org>,
	"H. Peter Anvin" <hpa@...or.com>,
	Stephane Eranian <eranian@...gle.com>,
	"Yan, Zheng Z" <zheng.z.yan@...el.com>
Subject: Re: Info: mapping multiple BARs. Your kernel is fine.

On Wed, Apr 16, 2014 at 04:56:00PM -0600, Bjorn Helgaas wrote:
 
 > > I'm seeing the exact same message on my thinkpad t430s.
 > > When I try your patch, modesetting no longer works. When it tries
 > > to change to the framebuffer I get a black screen and lockup.
 > > If I boot with nomodeset it locks up when it gets to X.
 > > It all scrolls by too fast to read, but it looks like there's still
 > > a backtrace present.
 > 
 > Ouch, sorry about that.  I do see a bug in my patch (fixed below), but I
 > don't see how that could cause what you're seeing.

updated diff made no difference fwiw.

 > Maybe I could figure
 > out something from this info (this can be from a kernel without my patch):
 > 
 >     - dmesg log
 >     - output of "find /sys/devices/pnp0 -name id -o -name resources | xargs grep ."
 >     - output of "sudo lspci -s00:00.0 -xxx"

attached from a fedora build of rc1.

	Dave


View attachment "pnp.txt" of type "text/plain" (4027 bytes)

View attachment "pci" of type "text/plain" (920 bytes)

View attachment "dmesg" of type "text/plain" (37383 bytes)