On Wed, Mar 30, 2016 at 02:46:36PM +0200, Sedat Dilek wrote: > dependency chain hlocks: 49608 [max: 327680] OK, so that is still below the u16 limit, so you're seeing an actual hash collision and my patch will not cure that. A different hash function _might_ help, but eventually this is an unfixable problem. Our input space is (2^13)^48 = 2^(13*48) = 2^624 = ff'n huge, reducing that to 2^64 is bound to generate a collision at some point. [ technically the 48 held_lock spots are not fully independent, so (2^13)^48 is slightly overestimating it, but the numbers are big enough for this to not matter much. ] -- To unsubscribe from this list: send the line "unsubscribe linux-fsdevel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html