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

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Message-ID: <4CDD532F.5060806@nctritech.com>
Date:	Fri, 12 Nov 2010 09:46:07 -0500
From:	Jody Bruchon <jody@...ritech.com>
To:	linux-kernel@...r.kernel.org
Subject: Fwd: PROBLEM: 2.6.36/2.6.37-rc1 ACPI early boot hang, Dell Inspiron
 1545

I think my original was caught in the spam filter; apologies if this is 
duplicated.

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" (65410 bytes)

View attachment "ver_linux_out.txt" of type "text/plain" (825 bytes)