linux-kernel - PROBLEM: 2.6.36/2.6.37-rc1 ACPI early boot hang, Dell Inspiron 1545

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Date:	Thu, 11 Nov 2010 18:26:12 -0500
From:	Jody - Tritech Computer Solutions <jody@...ritech.com>
To:	linux-kernel@...r.kernel.org
Subject: PROBLEM: 2.6.36/2.6.37-rc1 ACPI early boot hang, Dell Inspiron 1545

Compiling with the attached configuration, Linux kernels 2.6.36 and 
2.6.37-rc1 both hang in early boot on a Dell Inspiron 1545 laptop which 
is temporarily in my possession.  Playing with the configuration, I find 
that completely disabling ACPI restores normal boot.  Even if all 
sub-options are disabled under ACPI, or if other power management 
options are changed, it seems that the mere act of enabling ACPI is the 
culprit.

Using the "debug" boot option, I receive "early console in setup code" 
followed by a hang, rather than just hanging quietly.

No combination of boot options such as acpi=off, noapic, nolapic, 
pci=noacpi, pci=off, etc. helps (not that I expected it to.)

Because this is an early boot hang, I don't know what else to do to 
narrow this down, but I will have the laptop for another day or two.  I 
would like to attempt a BIOS update as well (currently at version A10) 
but I won't do so until we've had a chance to figure out what's going on.

I have also attached my ver_linux output for the BUILD system, in case 
it is helpful.

Jody Bruchon

View attachment "badconfig" of type "text/plain" (65409 bytes)

View attachment "ver_linux_out.txt" of type "text/plain" (824 bytes)