CUDA -9 overflow, but didn't exceed 30 results?

Using stock 6.08, BOINC 6.4.5, nVidia drivers 181.20 on XP Pro-32 SP3. No overclock GPU (5% CPU OC). Fan set to 65%. Dedicated cruncher, no other significant use.


See this WU.

STDERR.TXT shows:
SETI@Home Informational message -9 result_overflow
NOTE: The number of results detected exceeds the storage space allocated.

Flopcounter: 9471335772.108719

Spike count: 22
Pulse count: 8
Triplet count: 0
Gaussian count: 0
called boinc_finish

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Note that there ARE 30 results, but no single counter exceeds 30. I could have sworn that normal MB apps could continue beyond the above until any SINGLE counter exceeded 30.