[9fans] other kernel bug

[Yoann Padioleau]

Hi,

I think I've found another one :)

in confinit() we do:

    kmem -= conf.upages*sizeof(Page)
            + conf.nproc*sizeof(Proc)
            + conf.nimage*sizeof(KImage)
            + conf.nswap
            + conf.nswppo*sizeof(Page); // <- BUG

but in swapinit we actually do
    iolist = xalloc(conf.nswppo*sizeof(Page*));

so in confinit() it should be conf.nswppo*sizeof(Page*)