Since disabling physical DMA on Linux is trivial and effective, should the various Linux distributions ship with "options ohci1394 phys_dma=0" somewhere in modprobe config by default? What would that break in userland? Would the breakage be worth the added security?
I can set phys_dma=0 myself, but I would rather have distro have it by default so that I do not have to think about it each time I set up a new machine...
