Re: TCP SACK issue, hung connection, tcpdump included

I've been able to capture a tcpdump from both ends during the problem and its my belief there is a bug in 2.6.20.1 (at the client side) in that it issues a SACK option for an old sequence which the current window being advertised is beyond it. This is the most concerning issue as the integri

Re: TCP SACK issue, hung connection, tcpdump included

This is a reproducible problem (would take me between 30 mins and a day to reproduce it). Please feel free to provide me with tcpdump options to be sure I include to get the information you need. I've been informed there is no firewall at all, the only firewalling that takes place is the lo

TCP SACK issue, hung connection, tcpdump included

CLIENT = Linux 2.6.20.1-smp [Customer build] SERVER = Linux 2.6.9-55.ELsmp [Red Hat Enterprise Linux AS release 4 (Nahant Update 5)] The problems start around time index 09:21:39.860302 when the CLIENT issues a TCP packet with SACK option set (seemingly for a data segment which has already bee