netif_rx and dev stack

[Chava Leviatan]

Hello,     I have a 2.4.18 machine with 2 ethernet interfaces.   I am trying to simulate a scenario where packet has just arrived from one interface and going to the other.   I have build a kernel module that runs a kernel thread. That kernel thread is invoked every second, and then it does the following ;       -                alloc_skb     -                Fill the proper sk_buff fields     -                Fill IP header fields     -                Fill ICMP header fields     -                skb_put with the data length     -                call to netif_rx   I am able to see the packets with ethreal (on the correct interface). I have also put some debug prints into the kernel code (dev.c) and I am able to see those packets getting into __kfree_skb.   However, when i do the rmmod the machine crashes , i.e., performs a reset !! When I remove the netif_rx the rmmod returns ok.   Can anyone please explain why does it crash ??     Any help is apreciated, Thanks, Chava