Hello everyone, I made several tests about this bug, still trying to reduce the "magnitude" of the problem. For reducing noise I used some Debian virtual machines set-up on Oracle VirtualBox and on QEMU, avoiding the use of "real" radio link and adopting both SOCAT connections and VirtualBox com0com serial pipes as basis of the "kissattach". I can confirm that the duplication problem is always there in all the following configurations :
Debian "Wheezy" 64bits up-to-date (3.2.0-4-amd64 #1 SMP Debian 3.2.68-1+deb7u1 x86_64) Debian "Wheezy" 32bits up-to-date (3.2.0-4-486 #1 Debian 3.2.68-1+deb7u1 i686 GNU/Linux) Raspbian on real RaspberryPIb+ up-to-date (Linux 3.18.12+ #780 PREEMPT Mon Apr 20 14:46:05 BST 2015 armv6l GNU/Linux) . and last but not least : Debian "Jessie" 32bits installed yesterday (3.16.0-4-586 #1 Debian 3.16.7-ckt9-3~deb8u1) After a preliminary check made by Richard Stearn (G1SOG), who is meritoriously dedicating a lot of time to this issue and who will report asap his data, it seems that a regression happened among kernel 2.4.29 (where the problem is not there) and 2.6.33.3 (where the problem is already present). You can find the "capture" files related to the test over "Jessie" at this link (valid till May, 11st) : http://we.tl/Wg4arIkaBG Buy the way, analyzing the problem I would like to recommend you to test the case where the ICMP payload it's greater than the normal MTU (256 bytes) : the ICMP answers are quite interesting in this case. I'm at your disposal for any further need. Let me know if I have to open also this bug report on the libAX25 bug report log. cheer 73, Ugo -- To UNSUBSCRIBE, email to debian-bugs-dist-requ...@lists.debian.org with a subject of "unsubscribe". Trouble? Contact listmas...@lists.debian.org
