On a 32-bit system, while running aio-stress, I got the following kernel message: aio-stress used greatest stack depth: 372 bytes left That's a bit close for comfort; we may want to see if we have some especially piggy on-stack allocations on the AIO code paths. - Ted -- To unsubscribe from this list: send the line "unsubscribe linux-ext4" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html