search for: xn_rx_batch

...is given below, and I''ll try to explain where the problem occurs. The basic problem is that the hypercall on line 112 below fails because Xen is handed the page number -1. 1 static void 2 network_alloc_rx_buffers(struct netfront_info *sc) 3 { [...] 48 for (i = 0, m_new = sc->xn_rx_batch; m_new; 49 i++, sc->xn_rx_batchlen--, m_new = next) { 50 [...] 70 rx_pfn_array[i] = vtomach(mtod(m_new,vm_offset_t)) >> PAGE_SHIFT; The above call fails gives -1 (i.e., an invalid virtual -> machine translation) time since some mbufs are placed on the same page. 71...