NetBSD Problem Report #49700

From www@NetBSD.org  Thu Feb 26 17:45:19 2015
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Date: Thu, 26 Feb 2015 17:45:17 +0000 (UTC)
From: simon.jonsson@me.com
Reply-To: simon.jonsson@me.com
To: gnats-bugs@NetBSD.org
Subject: NetBSD won't boot from CD when ACPI is enabled
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>Number:         49700
>Category:       kern
>Synopsis:       NetBSD won't boot from CD when ACPI is enabled
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    port-amd64-maintainer
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Thu Feb 26 17:50:00 +0000 2015
>Last-Modified:  Thu Feb 26 18:26:14 +0000 2015
>Originator:     Simon Jonsson
>Release:        7.99.5 (20150226), 6.1.5, 6.1.4
>Organization:
>Environment:
Macbook Air 2,1 with external Superdrive (USB).
>Description:
Have tried to boot NetBSD with ACPI support on my external Superdrive with three different versions of the operating system (6.1.4, 6.1.5, 7.99.5 (current)), and none have worked. I can get into sysinst with Current if I disable ACPI (stable releases reboots with error message that flashes too quick on screen for me to notice). The system hangs right after memory/cpu have been initialised with no response what so ever (no dmesg therefore available). Also tried OpenBSD 5.6 which worked like a charm without any modifications.
>How-To-Repeat:
Just boot from CD (external USB in my case) on Macbook Air (2,1 in my case).
>Fix:
No known fixes at the moment.

>Release-Note:

>Audit-Trail:

Responsible-Changed-From-To: install-manager->port-amd64-maintainer
Responsible-Changed-By: martin@NetBSD.org
Responsible-Changed-When: Thu, 26 Feb 2015 18:26:14 +0000
Responsible-Changed-Why:
amd64/x86 specific kernel issue


>Unformatted:

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