I finally got a successful generation and read of a Linux Alpha crash dump
header. This is not the complete crash dump implementation, that will require
porting over several other items, including an Alpha disassembler for the code
trace. The final "gotcha" was that the code to read and parse the dump header
from the swapfile on reboot needed to be adjusted for the Alpha page size,
instead of Intel.
Below is the output from my test code, automatically generated after
initiating a crash dump and reboot. This is not representative of what the
final crash dump output will look like. Yes, the date looks odd, but that is
what the clock on the AS200 reads.
Next will be testing the writing of the rest of the dump pages, and then the
porting of the lcrash toolset which will generate a useful footprint, the
layout of which will be identical to the Intel version.
=========
Dump Header (version 2):
Magic number: 0xa8190173618f23ed
PAGE_SIZE = 8192
Dump header size: 728
Physical memory:
Start: 0x0
End: 0x6000000
Size: 95346688
Number of pages in dump: 0
Time of dump: Thu Feb 1 10:13:06 2052
=========
--
Brian Hall <brianw.hall@xxxxxxxxxx>
http://www.bigfoot.com/~brihall
Linux Consultant
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