Summary of osmo-pcu failures/defects

Hi, I have added rate counters to the PCU and noticed that a lot of frames in the DL are re-sent without there actually being any NACK or transmission errors. I have also re-produced a "stall" by just using ping with a big enough data size and a low enough interval (the PCU appears to transmit the ICMP PING but the MS never gets to send a PONG packet). In both cases it could be a scheduling issue (e.g. we don't schedule the UL Packet ACK/NACK). Is any of you aware of it? I had already highlighted that the scheduling is not fair. I wonder if we are seeing starvation (and will re-factor to be able to unit test this). In terms of scheduling. For the SBA we are already having a reservation that we try to honor in multiple places. Maybe it is time to extend it and have more reservations? holger -- - Holger Freyther <hfreyther(a)sysmocom.de> http://www.sysmocom.de/ ======================================================================= * sysmocom - systems for mobile communications GmbH * Schivelbeiner Str. 5 * 10439 Berlin, Germany * Sitz / Registered office: Berlin, HRB 134158 B * Geschaeftsfuehrer / Managing Directors: Holger Freyther, Harald Welte