kern/85866: bootloader freezes on Pentium2/3

[dirk.meyer at dinoex.sub.org]

>Number:         85866
>Category:       kern
>Synopsis:       bootloader freezes on Pentium2/3
>Confidential:   no
>Severity:       serious
>Priority:       medium
>Responsible:    freebsd-bugs
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Thu Sep 08 12:20:10 GMT 2005
>Closed-Date:
>Last-Modified:
>Originator:     Dirk Meyer
>Release:        FreeBSD 6.0-BETA3
>Organization:
privat
>Environment:

	Several Machines with PII or P3 found. (6 of 6 computers freeze)
CPU: Pentium II/Pentium II Xeon/Celeron (400.91-MHz 686-class CPU)
Origin = "GenuineIntel"  Id = 0x665  Stepping = 5
Features=0x183f9ff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,MMX,FXSR>

working on similar Computer:
FreeBSD 6.0-BETA2 #0: Wed Aug  3 08:22:24 UTC 2005
CPU: Pentium II/Pentium II Xeon/Celeron (400.91-MHz 686-class CPU)
Origin = "GenuineIntel"  Id = 0x652  Stepping = 2
Features=0x183f9ff<FPU,VME,DE,PSE,TSC,MSR,PAE,MCE,CX8,SEP,MTRR,PGE,MCA,CMOV,PAT,PSE36,MMX,FXSR>

>Description:

	trying to boot FreeBSD 5.x or FreeBSD 6.0 from CDROM fails.

	messages:
CD Loader 1.2

Buildiung boot loader arguments
Relocationg the loader and the BTX
_

	system is frozen ... only reset or power off 

	FreeBSD 4.10 CDROM works without problems.

>How-To-Repeat:

	insert any FreeBSD 5.x oder 6.0 CD in drive
	and reboot

>Fix:

	unknnown

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