Hi Tom,
I believe that I found a bug in the amso1100 driver. In the
c2_up() function there is the following code:
/* Tell the stack to ignore arp requests for ipaddrs bound to
* other interfaces. This is needed to prevent the host stack
* from responding to arp requests to the ipaddr bound on the
* rdma interface.
*/
in_dev = in_dev_get(netdev);
IN_DEV_CONF_SET(in_dev, ARP_IGNORE, 1);
in_dev_put(in_dev);
The issue is that the interface can be brought up with out having an
ipv4 address assigned to it. This causes a NULL pointer derefernce
(since in_dev will be NULL after in_dev_get(netdev)).
I tried a simple ``if (in_dev) { }'', however, I then run into trouble
if I add an ipv4 address to the interface after it is already up (I
encounter the ARP problem that this piece of code is trying to solve).
A simple solution is to only bring up the interface with an ipv4
address. This will work for my purposes, however, I wanted to point
this issue out incase there is possible fix for it.
Thanks,
Ethan
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