Wolfgang Grandegger wrote:
...
I found the problem:

        /* Get and patch time stamp just before the transmission */
        if (skb->xmit_stamp) {
                rtos_get_time(&time);
                rtos_print("xmit_stamp=%#Lx -> ", *skb->xmit_stamp);
                *skb->xmit_stamp = cpu_to_be64
                                     rtos_time_to_nanosecs(&time) +
                                               *skb->xmit_stamp);
                rtos_print("%#Lx\n", *skb->xmit_stamp);
        }
        
        /* Push the data cache so the CPM does not get stale memory
         * data.
         */
        flush_dcache_range((unsigned long)skb->data,
                           (unsigned long)skb->data + skb->len);

The "flush_dcache_range" was before modifying skb->xmit_stamp. I was not
aware, that it's pointing to skb's data :-(.


...and as the packets were sniffed on the sender side, the correct copy made it into the dump. Fine, another problem solved. :)

Then please let me know when your tests with the new driver run fine so that we can roll out a 0.8.3. With the upcoming official RTDM, we need some reorganisation work (=>0.9), and I would like to have a cut first.

Jan


-------------------------------------------------------
SF.Net email is sponsored by: Discover Easy Linux Migration Strategies
from IBM. Find simple to follow Roadmaps, straightforward articles,
informative Webcasts and more! Get everything you need to get up to
speed, fast. http://ads.osdn.com/?ad_id=7477&alloc_id=16492&op=click
_______________________________________________
RTnet-users mailing list
RTnet-users@lists.sourceforge.net
https://lists.sourceforge.net/lists/listinfo/rtnet-users

Reply via email to