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Old 2011-09-24, 23:02   #1
patrik's Avatar
"Patrik Johansson"
Aug 2002
Uppsala, Sweden

52×17 Posts
Default Residue not matching due to masked bits

I just did a successful double-check of 33238477 with residue D12F51397BCA233C. There is also a bad result for this exponent with residue D12F51397BCA23__ (by Daniel Weijand, computer name C7364A0E9). It is obvious that this result is not really a bad result, but somehow the masked bits made it into the database.

I looked in some old status files that I have kept, and the result of the first test looks like
in the hrf3 file. In cleared.txt it was reported as
33238477  69     0xD12F51397BCA23__                01-Sep-03 14:16  S67532         C7364A0E9
The double check was done right after that with hrf3 line
33238477  69  D  0xD12F51397BCA23__                11-Nov-03 03:17  DL             laptop
in cleared.txt.

Does anybody know what has happened?
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Old 2011-09-24, 23:44   #2
P90 years forever!
Prime95's Avatar
Aug 2002
Yeehaw, FL

32·853 Posts

Well, from my fuzzy ancient memories....

A v4 server hiccup, the details of which I've long since forgotten about, caused some LL results to be lost -- only recoverable from a report that showed the masked bottom 8 bits.

At the time, I figured it was best to add the results to the database without valid bottom bits so that the exponents would not be handed out as first-time tests and the user received proper CPU credit.

In looking the last pre-v5 database, it looks like there were 4 such cases: 18050569,19857121,33238477,33254747
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