sparc64/164123: Kernel fails to boot on Sun Ultra 5

Sat Jan 14 16:20:13 UTC 2012

>Number:         164123
>Category:       sparc64
>Synopsis:       Kernel fails to boot on Sun Ultra 5
>Confidential:   no
>Severity:       critical
>Priority:       medium
>Responsible:    freebsd-sparc64
>State:          open
>Quarter:        
>Keywords:       
>Date-Required:
>Class:          sw-bug
>Submitter-Id:   current-users
>Arrival-Date:   Sat Jan 14 16:20:12 UTC 2012
>Closed-Date:
>Last-Modified:
>Originator:     Guy M. Broome
>Release:        9.0-RELEASE
>Organization:
Virginia Commonwealth University
>Environment:
FreeBSD yeoldesun4u.local1707.net 9.0-RC1 FreeBSD 9.0-RC1 #0: Sat Oct 22 23:56:51 EDT 2011     gmbroome at YeOldeSun4u.local1707.net:/usr/obj/usr/src/sys/MJOLNIR  sparc64
>Description:
I have a Sun Ultra 5 in use as a low-capacity data server.  This unit has been running 9.0-RC1 with a custom kernel quite nicely since RC1 became available.

This unit is able to boot RC1 custom and GENERIC kernels with no problem.  In an attempt to upgrade to 9.0-RELEASE, I downloaded the kernel tarball via FTP, and unpacked it to the usual place, making sure to keep the RC1 kernel as kernel.old

However, upon a reboot, the boot loader loads the 9.0-RELEASE GENERIC kernel, but immediately after "jumping to kernel entry", errors back to firmware with the message "Fast data access MMU miss".

I've attempted to boot the 9.0-RELEASE GENERIC kernel, and a build from source using my custom config from RC1.  Both fail with the MMU miss error.  For good measure, I even tried using /boot/loader from 9.0-RELEASE.  No go.  The error is consistent every time a 9.0-RELEASE kernel is tried.  RC1 still boots and runs normally.

Unit contains:
 - 256MB RAM, factory original
 - 8.0GB IDE HD containing root partition on primary master channel
 - 80GB IDE HD containing /usr, on secondary master
 - CD-RW drive, on secondary slave
 - 400MHz UltraSPARC IIi

dmesg from successfully-booting RC1 custom kernel: http://pastebin.com/N3NVfumc
>How-To-Repeat:
Attempt to boot 9.0-RELEASE (sparc64) kernel GENERIC on a Sun Ultra 5
>Fix:

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