> 4. 802.11n packet aggregation. I believe this is the main problem by > the fact that, disabling 802.11n packet aggregation in ath9k driver > will make the network stable and problem 2 and 3 are not seen. In > other words, problem 2 and 3 may be caused by aggregation (my > imagination, aggregation caused certain error condition that is not > handled properly, which triggers problem 2 and 3) TP> And to reproduce you run a simultaneous ping from one node to ~6 others? It will take me a few days to find time to reproduce this, so any interesting observations you can offer in the mean time would be helpful. Yes, I run simultaneous ping from one node to all other 6 nodes. No, when 802.11n is enabled, the ping loss is seen fairly fast (in a few minutes). Problem 2 and problem 3 is not that predictable. But once it's in that state, it stucks there and give me enough time to troubleshoot. I post test result of test running a few days just to show that disabling 802.11n really make the network stable, instead of "stable by chance in a short period. -- 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
