Hi, Scott This change seems to fix the problem. Thanks a lot ! Felix. Feldman, Scott wrote: >>I've also noticed that the number of hard_start_xmit failures >>in e1000 has increased significantly in version 5.1.13-k1. In >>version 5.0.43-k1 the number of failures was much smaller. >> >> > >Interesting. Felix, would you undo the change[1] below in 5.1.13-k1 and >see what happens? With the change below, 5.1.13 would be more >aggressive on Tx cleanup, so we'll be quicker waking the queue than >before. > >-scott > > for(i = 0; i < E1000_MAX_INTR; i++) >- if(!e1000_clean_rx_irq(adapter) && >+ if(!e1000_clean_rx_irq(adapter) & > !e1000_clean_tx_irq(adapter)) > break; > >[1] Something still bothers me about this new form where we're mixing a >bit-wise operator with logical operands. Should this bother me? > > >