kern/61907: 5.2 hangs when booting with cbb in kernel on IBM A31

[Christoph Mathys]

>Number:         61907
>Category:       kern
>Synopsis:       5.2 hangs when booting with cbb in kernel on IBM A31
>Confidential:   no
>Severity:       non-critical
>Priority:       low
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Sun Jan 25 13:40:04 PST 2004
>Closed-Date:
>Last-Modified:
>Originator:     Christoph Mathys
>Release:        FreeBSD 5.2-RELEASE
>Organization:
>Environment:
FreeBSD nebuchadnezza.bsd.local 5.2-RELEASE FreeBSD 5.2-RELEASE #6: Sun Jan 25 19:17:54 CET 2004     root at nebuchadnezza.bsd.local:/usr/src/sys/i386/compile/LAPTOP  i386
>Description:
When I disable ACPI and boot with 'device cbb' compiled into the kernel the boot process often hangs when probing cbb0 or cbb1. The problem only occured when the acpi-module is not loaded.
>How-To-Repeat:
Boot on an IBM A31 with acpi-module disabled and 'device cbb' in kernel.
>Fix:
compile a kernel without cbb driver
>Release-Note:
>Audit-Trail:
>Unformatted: