[rescue] Sun4 FPU errors

[Mark Price]

Hello list,  happy new year!

I'm brushing off a SPARC classic I recently received from a fellow
list member.

Currently I'm stuck with FPU errors when powering on.  I haven't yet
found any useful troubleshooting info online, so I thought I would see
if anyone here has insight or suggestions.

Is this simply a bad CPU?


The system bounces between a few different errors when powering on,
examples are:

-------------------------------------------------
MMU Context Table Reg Test
MMU Context Register Test
MMU TLB Replace Reg Test
MMU Sync Fault Stat Reg Test
MMU Sync Fault Addr Reg Test
MMU TLB/CAM NTA Pattern Test
D-Cache RAM NTA Test
D-Cache TAG NTA Test
I-Cache RAM NTA Test
I-Cache TAG NTA Test
FPU Register File Test
FPU Misaligned Reg Pair Test
FPU Single-precision Tests
FPU Double-precision Tests
     ERROR : FPU Double-precision Operation, exp = 40390000 00000380, obs = 4039
0000 000003c0
     U-NUMBER : Suspect Tsunami Module

-------------------------------------------------

MMU TLB/CAM NTA Pattern Test
D-Cache RAM NTA Test
D-Cache TAG NTA Test
I-Cache RAM NTA Test
I-Cache TAG NTA Test
FPU Register File Test
     ERROR : FPU Registerfile Stuck-at Fault
         00000000 :  00000000  00000380
         00000002 :  00000000  00000380
         00000004 :  00000000  00000380
         00000006 :  00000000  00000380
         00000008 :  00000000  00000380
         0000000a :  00000000  00000380
         0000000c :  00000000  00000380
         0000000e :  00000000  00000380
         00000010 :  00000000  00000380
         00000012 :  00000000  00000380
         00000014 :  00000000  00000380
         00000016 :  00000000  00000380
         00000018 :  00000000  00000380
         0000001a :  00000000  00000380
         0000001c :  00000000  00000380
         0000001e :  00000000  00000380
     U-NUMBER : Suspect Tsunami Module
-------------------------------------------------



Best Regards,

Mark