Hi Satyendra Bhaisare, On Tuesday 03 February 2004 20:01, Satyendra Bhaisare wrote: > Hi all, > I am stress testing a network driver on IXP12xx platform. In normal ping, > the driver works fine. > However, on some occassion during flood ping testing, It crashes. The dump > when analyzed shows the following sequence of calls made. > > start_kernel -> rest_init -> cpu_idle -> do_IRQ ..... Here your ISR registered for the driver comes into picture. Then u allocate the socket buffer(sk_buff) and using the netif_rx u might be registering to the newly created sk_buff to the higher layer (Actually in netif_rx the do_softirq is called... to my knowledge) >From there its upto the kernel... So I think the problem must be somewhere u allocating the skbuffer or setting any fields of skbuff... These are only assumptions... Hope this may help you... >.......-> do_softirq -> > net_rx_action -> ip_rcv -> ip_local_deliver -> tcp_v4_rcv -> __kfree_skb -> > skb_release_data -> kfree -> __div0 > Regards, Shine Mohamed -- Kernelnewbies: Help each other learn about the Linux kernel. Archive: http://mail.nl.linux.org/kernelnewbies/ FAQ: http://kernelnewbies.org/faq/
