kern/82978: FreeBSD hangs loading orm(4) only after rebooting

[Matthew X. Economou]

>Number:         82978
>Category:       kern
>Synopsis:       FreeBSD hangs loading orm(4) only after rebooting
>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:   Mon Jul 04 15:20:13 GMT 2005
>Closed-Date:
>Last-Modified:
>Originator:     Matthew X. Economou
>Release:        FreeBSD 5.4-RELEASE i386
>Organization:
>Environment:

System: FreeBSD cinep010fbmx.irtnog.org 5.4-RELEASE
FreeBSD 5.4-RELEASE #0: Sun May 8 10:21:06 UTC 2005
root at harlow.cse.buffalo.edu:/usr/obj/usr/src/sys/GENERIC i386

Compaq Deskpro 2000 (133-MHz Pentium)

	
>Description:

If I reboot FreeBSD (e.g. 'shutdown -r now'), at boot, FreeBSD will
hang immediately after loading the pci0 device (a VGA device on my
system) and immediately prior to loading the orm0 device:

 Copyright (c) 1992-2005 The FreeBSD Project.
 Copyright (c) 1979, 1980, 1983, 1986, 1988, 1989, 1991, 1992, 1993, 1994
         The Regents of the University of California. All rights reserved.
 FreeBSD 5.4-RELEASE #0: Sun May  8 10:21:06 UTC 2005
     root at harlow.cse.buffalo.edu:/usr/obj/usr/src/sys/GENERIC
 Timecounter "i8254" frequency 1193182 Hz quality 0
 CPU: Pentium/P54C (132.96-MHz 586-class CPU)
   Origin = "GenuineIntel"  Id = 0x52c  Stepping = 12
   Features=0x1bf<FPU,VME,DE,PSE,TSC,MSR,MCE,CX8>
 real memory  = 134217728 (128 MB)
 avail memory = 121696256 (116 MB)
 Intel Pentium detected, installing workaround for F00F bug
 npx0: <math processor> on motherboard
 npx0: INT 16 interface
 cpu0 on motherboard
 pcib0: <Host to PCI bridge> pcibus 0 on motherboard
 pci0: <PCI bus> on pcib0
 isab0: <PCI-ISA bridge> at device 7.0 on pci0
 isa0: <ISA bus> on isab0
 atapci0: <Intel PIIX3 WDMA2 controller> port 0x1000-0x100f,0x376,0x170-0x177,0x3f6,0x1f0-0x1f7 at device 7.1 on pci0
 ata0: channel #0 on atapci0
 ata1: channel #1 on atapci0
 pci0: <display, VGA> at device 15.0 (no driver attached)
 orm0: <ISA Option ROM> at iomem 0xc0000-0xc7fff on isa0

	
>How-To-Repeat:

(see above)
	
>Fix:

To reboot, I my physically power down the system, or I must recompile
the kernel without the orm(4) device.
	


>Release-Note:
>Audit-Trail:
>Unformatted: