On Thu, 2012-09-20 at 17:27 +0200, Eric Dumazet wrote: > On Thu, 2012-09-20 at 17:22 +0200, Johannes Berg wrote: > > On Thu, 2012-09-20 at 17:18 +0200, Eric Dumazet wrote: > > > > > > Note I think the failing packets are dhcp packets, and connman seems to > > > > use an AF_INET, SOCK_DGRAM, IPPROTO_UDP socket for those, and binds it > > > > to the right device. I'd be quite surprised though if UDP code had > > > > issues with paged Rx?? > > > > > You told me : socket(PF_PACKET, SOCK_RAW, htons(ETH_P_EAPOL)) > > > > > > So I looked at raw code. > > > > and even found an issue. Artem wasn't really sure, but looking at his > > information again it seems that the EAPOL packets (those on the raw > > sockets) do go through, and then DHCP fails. In the printk he did for > > me, I can see that the EAPOL packets are small enough to get pulled in > > completely in iwlwifi, and the bigger DHCP packets (~600 bytes) only go > > through if we linearize them. > > OK, its a bug in UDP, I'll send a patch asap. Oh well, false alarm. Artem, could you send one capture of one such DHCP big packet ? tcpdump -p -n -s 2000 -i wlanX -X -- To unsubscribe from this list: send the line "unsubscribe linux-wireless" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
