rem: printf("** mark_blocks_diry couldn't find block %ld (len %d)\n",
add: printf("** mark_blocks_diry couldn't find block %Ld (len %d)\n",
context: mark_blocks_dirty(int dev, fs_off_t bnum, int nblocks){    int        ret = 0;    cache_ent *ce;    LOCK(bc.lock);        while(nblocks > 0) {        ce = block_lookup(dev, bnum);        if (ce) {            ce->flags |= CE_DIRTY;            bnum      += 1;                     nblocks   -= 1;        } else {     /* hmmm, that's odd, didn't find it */            printf("** mark_blocks_diry couldn't find block %ld (len %d)\n",                   bnum, nblocks);            ret = ENOENT;            break;        }    }        UNLOCK(bc.lock);    return ret;}