After having a couple of normal run of CEP work units and granted the full credit, I got one of the WU that was early terminated.

Result Name Status Sent Time Time Due/Return Time CPU Time (hours) Claimed/ Granted BOINC Credit
E000044_ 418A_ 00055e00u_ 0-- Valid 12/19/08 14:00:39 12/21/08 00:56:35 7.34 49.0 / 49.0 --> mine
E000044_ 418A_ 00055e00u_ 1-- Valid 12/19/08 13:58:17 12/21/08 14:38:28 37.63 491.1 / 49.0 --> other's

The log file looks as follows.
<core_client_version>6.2.19</core_client_version>
<![CDATA[
<stderr_txt>
Calling initGraphics()
INFO: No state to restore. Start from the beginning.
[ERROR] Failed to open either source or destination files while copying wcgrestart.rst to ../../projects/www.worldcommunitygrid.org/E000044_418A_00055e00u_0_3. Error: 2
####Message = NORMAL STOP
called boinc_finish

</stderr_txt>
]]>


While I feel guilty to cause the other WU given very low credit for his/her 37+ hrs, I would like to share the info that may lead to solving the current bug.

For the observation above, we can conclude that:
1. a bug that truncate a file name
2. the mechanism to detect early termination failed to error this WU
3. the mirror WU is completed without error, which raised an interesting question on why the file name truncation did not happen in both copies of WUs.

Please let me know if further information is required.

Regards, Irwan