Comment 8 for bug 1364780

Just to add, my initial suspicion is either:

a) a rogue extractor
b) the kernel could be killing us due to too much memory use, based on our call to setrlimit() which we mainly only use in tracker-extract. The limit = CLAMP (total_halfed, MEM_LIMIT_MIN, G_MAXLONG); where MEM_LIMIT_MIN = 256 Mb. Bare in mind, the memory use in the logs above is more than 256MB.