[LON-CAPA-dev] Zaphod again...
Matthew Brian Hall
lon-capa-dev@mail.lon-capa.org
Fri, 22 Nov 2002 09:14:13 -0500 (EST)
Well, Zaphod crashed again in spite of having new RAM.
The error given is a Machine Check Exception: 0000000000000004
Bank 0 F650210022200810 at 000000000a07e140
CPU Context corrupt
interrupt handler - not syncing
The MCE listed indicates it crashed on access that was either a
'special cycle OR a I/O cycle', according to Appendix E of Intel's IA-32 Intel
Architechture Software Developer's Manual Volume 3.
parsemce (http://www.codemonkey.org.uk/cruft/parsemce.c/parsemce.c)
gives:
[matthew@kirk matthew]$ ./parsemce -e 0000000000000004 -b 0 -s
f650210022200810 -a 000000000a07e140
Status: (4) Machine Check in progress.
Restart IP invalid.
parsebank(0): f650210022200810 @ a07e140
External tag parity error
Uncorrectable ECC error
CPU state corrupt. Restart not possible
Address in addr register valid
Error enabled in control register
Error not corrected.
Error overflow
Bus and interconnect error
Participation: Local processor originated request
Timeout: Request did not timeout
Request: Generic error
Transaction type : Instruction
Memory/IO : Memory access
Which appears to indicate a bad bus. But the CPU could be dead, too.
So, we'll need to find a replacement machine somewhere and get Zaphod
to the hospital...
Matthew-
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Matthew Hall LON-CAPA developer hallmat3@msu.edu
123 North Kedzie Hall Michigan State University
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