> drd: drd_vc.c:96 (vgDrd_vc_increment): Assertion 'oldcount <
> vc->vc[i].count' failed.
I suspect (I don't know for sure) that this is a vector clock overflow.
That might happen if your program performed more that 2^32 inter-thread
synchronisation events, for example, mutex lock, unlock, condvar posts
or signals, sem post/wait, thread create/join, etc. Is that likely?
Can you reduce the problem size (to perhaps a few hundred thousand records)
and see if the failure goes away?
> I don't understand what the semantics of the thread counter "count" is [..]
I suspect that is incremented every time one of the abovementioned thread
events happens. The mechanism is a bit complex, but a counter overflow could
happen if there is a chain of such thread events (possibly involving multiple
threads) that is more than 2^32 long.
J
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