On Wed, 20 Aug 2008 15:37:13 +0300 (EEST) "Ilpo Järvinen" <ilpo.jarvinen@xxxxxxxxxxx> wrote: > Based on irc discussion with davem, there is a htb bug which can cause > corruption of the retransmitted TCP packets (and then a discard due to > checksum mismatch). That would also explain the strange headers I noticed > earlier. There's a patch below (should apply to 2.6.26), please put it at > least on the host(s) which use htb (I don't know if both server and the > client do use wondershaper script or just the client). An different > failure symptoms (one could be somehow frto related as FRTO is used while > retransmitting) are also quite well explainable. > > But FRTO is mostly not a suspect based on the tcpdump you provided (no > FRTO workaround would help in that). Ilpo, I have good news. I decided to disable completely HTB and the problem seems to have gone. And frto is enabled, of course. So the problem was with HTB, not frto as I thought. The HTB patches you provided are going to be included in the next 2.6.27 kernel, right? Thank you. -- -- To unsubscribe from this list: send the line "unsubscribe netfilter-devel" in the body of a message to majordomo@xxxxxxxxxxxxxxx More majordomo info at http://vger.kernel.org/majordomo-info.html
