Let's say I set my PAGE_SIZE to be a massive 1MB. This is a huge page size, so it seems to make sense to have the min order for SLUB be 0.
While booting, the kernel sets up the kmalloc caches for, say, the 8 byte size type. When it hits slab_order: http://lxr.linux.no/linux+v2.6.34.1/mm/slub.c#L1958 It finds that the minimum page order can hold more than MAX_OBJS_PER_PAGE, so it then requests the order of the page that holds the max objects. In our case, it turns out to be 0 still, so it subtracts 1 from that, returns a -1, and the allocation fails and the kernel panics. Should this really be an error, or should it just return 0 in this case? Is there some other option or tuning that I'm overlooking to make this ridiculous page size work? Thanks! -- To unsubscribe from this list: send an email with "unsubscribe kernelnewbies" to ecar...@nl.linux.org Please read the FAQ at http://kernelnewbies.org/FAQ
