hyc@symas.com wrote:

I don't think the current fix is complete. Due to the Abandon check at 1190, it's possible (though extremely unlikely) for an Abandon to arrive between the start and end of a mod op, and cause the final decrement to be skipped still. Probably need to do some restructuring to catch this, I'll look at this some more.

Never mind, syncprov_op_cleanup already catches these cases.