Hi, 2016-10-27 9:56 GMT+02:00 Robert Hartung <[email protected]>:
> Hello everyone, > > I am trying to send IEEE 802.15.4 frames between two telosb nodes. The > code is attached. It works well if I send a single packet, but not if I > send 10 packets. The output I get is: > > 2016-10-27 09:33:50,232 - INFO # Packet(0x1cbe) #0: hallo? > 2016-10-27 09:33:50,263 - INFO # Packet(0x1db6) #7: hallo? > 2016-10-27 09:33:50,293 - INFO # Packet(0x1e02) #8: hallo? > 2016-10-27 09:33:50,320 - INFO # Packet(0x1db6) #62: > > You can see, that the 4th packet is corrupt. When I change the > RCV_QUEUE_SIZE to 5 the output changes to: > > 2016-10-27 09:35:33,096 - INFO # Packet(0x1c96) #0: hallo? > 2016-10-27 09:35:33,127 - INFO # Packet(0x1d2e) #4: hallo? > 2016-10-27 09:35:33,155 - INFO # Packet(0x1d2e) #132: > > When I change the RCV_QUEUE_SIZE to 8, I magically receive the packets. > And this bug does not occur! > > Can anyone tell me why this happens? Do I need to change some size, > stack size, whatsoever? It's not magic if you keep the requirements for the message queue. It must be a power of two ;-) [1]! I proposed a fix to the doc to make this even more visible [2]. Kind regards, Martine [1] http://doc.riot-os.org/group__core__msg.html# ga480e6f32c8ab18579b62a890f3fda2cd [2] https://github.com/RIOT-OS/RIOT/pull/6003 2016-10-27 9:56 GMT+02:00 Robert Hartung <[email protected]>: > Hello everyone, > > I am trying to send IEEE 802.15.4 frames between two telosb nodes. The > code is attached. It works well if I send a single packet, but not if I > send 10 packets. The output I get is: > > 2016-10-27 09:33:50,232 - INFO # Packet(0x1cbe) #0: hallo? > 2016-10-27 09:33:50,263 - INFO # Packet(0x1db6) #7: hallo? > 2016-10-27 09:33:50,293 - INFO # Packet(0x1e02) #8: hallo? > 2016-10-27 09:33:50,320 - INFO # Packet(0x1db6) #62: > > You can see, that the 4th packet is corrupt. When I change the > RCV_QUEUE_SIZE to 5 the output changes to: > > 2016-10-27 09:35:33,096 - INFO # Packet(0x1c96) #0: hallo? > 2016-10-27 09:35:33,127 - INFO # Packet(0x1d2e) #4: hallo? > 2016-10-27 09:35:33,155 - INFO # Packet(0x1d2e) #132: > > When I change the RCV_QUEUE_SIZE to 8, I magically receive the packets. > And this bug does not occur! > > Can anyone tell me why this happens? Do I need to change some size, > stack size, whatsoever? > > Best Regards, > Robert > > -- > Robert Hartung, M.Sc. > > Technische Universität Braunschweig > Institut für Betriebssysteme und Rechnerverbund > Mühlenpfordtstr. 23, Raum 115 > 38106 Braunschweig > > Fon: +49 (531) 391 - 3264 > Fax: +49 (531) 391 - 5936 > E-Mail: [email protected] > > _______________________________________________ > users mailing list > [email protected] > https://lists.riot-os.org/mailman/listinfo/users > >
_______________________________________________ users mailing list [email protected] https://lists.riot-os.org/mailman/listinfo/users
