Alan Cox <alan@xxxxxxxxxxxxxxxxxxx> wrote: > 64bit kernel 32bit user space should be fine, There's a place I pointed out in an earlier email where it appears a 64-bit kernel can screw up, even with a 32-bit userspace. It allocates a piece of RAM with kmalloc(), takes the address of it, passes that through virt_to_bus(), discards the upper 32-bits from the result and posts it in an I2O message, presumably to the device. That would appear likely to go kaboom on a 64-bit system with more than 4GB of RAM. If the device doesn't use that address, then why pass it at all? David -- To unsubscribe from this list: send the line "unsubscribe linux-scsi" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html