From: wmorse@mathcs.emory.edu (William Morse)
Newsgroups: comp.sys.sun.admin
Subject: Come on.... Somebody must have some ideas... Please? Sun 3/60 and SCSI...
Keywords: Sun 3/60 and SCSI
Date: 29 Sep 92 23:24:58 GMT
Organization: Emory University, Dept of Math and CS


                                                                                

You all have come through for me before... I hope you can help me again...      

                                                                                

I have a Sun 3/60 with two shoeboxes... I have had this problem since I got     

the machine about a month ago... Here it is...                                  

                                                                                

I am using SunOS 4.1... I will load the system from tape... It boots etc.       

great - for a time... Then, directories start to "vanish"... By this I          

mean fsck reports lots of DUPS and invalid directories and files... The         

errors seem to occur most often at halt or boot, but sometimes they happen      

while the system is on-line...                                                  

                                                                                

Also I sometimes get an error like "Resetting SCSI bus...."  Lots of vectors    

appear on screen, then it says le0 bus error... then later sd0 online...

Then, it goes through all this again two or three times...  The result

at the end is a trashed disk.



I did the following traceback...

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

FFFFFFFF: pid 445, `halt':                                                      

vector 0x8, pc 0xfef9c98, sr 0x2708, stkfmt 0xb, context 0x3                    

Bus Error Reg 80<INVALID>                                                       

data fault address 0 faultc 0 faultb 0 dfault 1 rw 1 size 3 fcode 5             

KERNEL MODE                                                                     

page map 0 pmgrp 9e                                                             

D0-D7  8 3 1 1 8 5 4 ffffffff                                                   

A0-A7  ffffffff 5 e003800 afdfd699 e101603 e101655 e1015a6 e10158a              

Begin traceback...fp = e1015a6, sp = e10158a                                    

Called from fef4264, fp=e1015c2, args=ffffffff 8 5 2004                         

Called from fef4060, fp=e1015ce, args=b8 e1015e6 fef3fb0 5                      

Called from fef3fb0, fp=e1015e6, args=5 1 fe20000 60000                         

Called from fef2956, fp=e101656, args=e101655 e101603 2004 0                    

Called from fef02b4, fp=e1016c8, args=e003800 80 1 1                            

Called from e075740, fp=e1016e0, args=0 0 37 e101a04                            

Called from e0284be, fp=e101774, args=8 e101a04 e044026 f229258                 

Called from e01d694, fp=e101780, args=e0a8552 e1017a8 e078d4a e101a04           

Called from e078d4a, fp=e1017a8, args=e101a04 8 1 2                             

Called from e00476a, fp=dffff90, args=37 37 0 1                                 

End traceback...                                                                

panic: Bus error                                                                

00106 low-memory static kernel pages                                            

00113 additional static and sysmap kernel pages                                 

00000 dynamic kernel data pages                                                 

00003 additional user structure pages                                           

00000 segmap kernel pages                                                       

00000 segvn kernel pages                                                        

00049 current user process pages                                                

00001 user stack pages                                                          

00272 total pages (272 chunks)                                                  

                                                                                

dumping to vp f1dbcb4, offset 29260                                             

272 total pages, dump succeeded                                                 

rebooting...

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



I switched out totally one shoebox... I have turned one off and loaded the

software on the other and vice versa... no effect.



I have been told that:

1) format under 4.1 is "buggy" and that it doesn't like the emulex / 

   adaptec controllers in my shoeboxes... (both are sun made)  I was

   told the 3.x format works better.

2) I need to "terminate" the scsi bus... If this is the cause, how do

   I do this?

3) The Sun 3/60 has "blown a chip..."



Do you have any ideas?



Please, and I beg of you, let me know.



Thanks...



---> William




-- 
William Morse
Emory University, Atlanta, GA 
Internet:  wmorse@mathcs.emory.edu		BITNET: wmorse@emory.bitnet
UUCP: {rutgers,gatech}!emory!wmorse	
Newsgroups: comp.sys.sun.admin