> Ok that would mean its not related to object arrangement within the page > done by the allocator. How can a atomic_long value become misaligned? It isn't just misaligned ... it is completely trashed. 0xca2ffc55fb373e95 isn't any kind of valid address on ia64. I'm I little surprised that we didn't machine check as we will have interpreted it as an uncacheable access to a non-existent physical address. -Tony -- To unsubscribe from this list: send the line "unsubscribe linux-next" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html