>Number:         30828
>Category:       port-amd64
>Synopsis:       amd64 unable to boot into DDB
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    port-amd64-maintainer
>State:          open
>Class:          sw-bug
>Submitter-Id:   net
>Arrival-Date:   Mon Jul 25 08:13:00 +0000 2005
>Originator:     Havard Eidnes
>Release:        NetBSD 3.99.7 of 7 Jul 2005
>Organization:
	
>Environment:
System: NetBSD ravnkloa.urc.uninett.no 3.99.7 NetBSD 3.99.7 (GENERIC) #21: Mon Jul 25 09:34:06 CEST 2005  he@ravnkloa.urc.uninett.no:/usr/obj/sys/arch/amd64/compile/GENERIC amd64
Architecture: x86_64
Machine: amd64
>Description:
	An attempt at booting into DDB does not cause it to drop into
	DDB during boot:

... boot netbsd -d
booting hd0a:netbsd (howto 0x40)
6207968+673472+376768 [476112+291954]=0x8a83c8
Copyright (c) 1996, 1997, 1998, 1999, 2000, 2001, 2002, 2003, 2004, 2005
    The NetBSD Foundation, Inc.  All rights reserved.
Copyright (c) 1982, 1986, 1989, 1991, 1993
    The Regents of the University of California.  All rights reserved.

NetBSD 3.99.7 (GENERIC) #21: Mon Jul 25 09:34:06 CEST 2005
        he@ravnkloa.urc.uninett.no:/usr/obj/sys/arch/amd64/compile/GENERIC
total memory = 511 MB
avail memory = 484 MB
mainbus0 (root)
mainbus0: Intel MP Specification (Version 1.4) (IBM      J/P         )
cpu0 at mainbus0: apid 0 (boot processor)
cpu0:               Intel(R) Pentium(R) 4 CPU 3.20GHz, 3200.70 MHz
cpu0: features: bfebfbff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,APIC,SEP,MTRR>
cpu0: features: bfebfbff<PGE,MCA,CMOV,PAT,PSE36,MPC,B21,MMXX,MMX>
cpu0: features: bfebfbff<FXSR,SSE,SSE2,B27,B28,LONG,3DNOW>
cpu0: L2 cache 1 MB 64B/line 8-way
cpu0: calibrating local timer
cpu0: apic clock running at 200 MHz
cpu0: 32 page colors
mpbios: bus 0 is type PCI   
mpbios: bus 1 is type PCI   
mpbios: bus 2 is type PCI   
mpbios: bus 3 is type PCI   
mpbios: bus 4 is type PCI   
mpbios: bus 5 is type ISA   
ioapic0 at mainbus0 apid 2 (I/O APIC)
ioapic0: pa 0xfec00000, version 20, 24 pins
ioapic1 at mainbus0 apid 3 (I/O APIC)
ioapic1: pa 0xfec10000, version 20, 24 pins
pci0 at mainbus0 bus 0: configuration mode 1

	...and it proceeds to boot multi-user.

>How-To-Repeat:
	Try to boot an amd64 machine into DDB; watch it continue as if
	you had not specified the -d flag to the boot loader.

>Fix:
	Sorry, none supplied.