TCP receive window management

2014-10-09 Thread Madhusudhan Ravi
I have a question regarding the freeBSD receive window advertisement and updating sender side flow control state based on this. Is it expected that a retransmitted packet not carry an updated receive window? The following are the state variables used for maintaining a peer's rcv window state on

Re: Unable to kill a non-zombie process with -9

2014-10-09 Thread John-Mark Gurney
el...@sentor.se wrote this message on Wed, Oct 08, 2014 at 13:30 +0200: > > I guess this is a bug report for FreeBSD 10.0. > > > > Sometimes I can't kill my snort process on FreeBSD 10.0. > It won't die, even with kill -9. > > I'm not talking about a zombie process. Snort is a process that sho

Re: ixgbe(4) spin lock held too long

2014-10-09 Thread Jason Wolfe
On Wed, Oct 8, 2014 at 12:29 PM, John Baldwin wrote: > My only other thought is if a direct timeout routine ran for a long time. > > I just committed a change to current that can let you capture KTR traces of > callout routines for use with schedgraph (r272757). Unfortunately, > enabling KTR_SCH

Re: HEADS UP: Merging projects/ipfw to HEAD

2014-10-09 Thread Alexander V . Chernikov
On 04 Oct 2014, at 16:35, Alexander V. Chernikov wrote: > Hi, > > I'm going to merge projects/ipfw branch to HEAD in the middle of next week. Merged in r 272840. > > What has changed: > > Main user-visible changes are related to tables: > > * Tables are now identified by names, not numbers. T

RE: Netmap. Example to understand?

2014-10-09 Thread Jog Lie
Ok got it! https://github.com/fichtner/netmap/blob/master/examples/bridge.c > From: deco33...@hotmail.com > To: freebsd-net@freebsd.org > Subject: Netmap. Example to understand? > Date: Thu, 9 Oct 2014 10:05:56 +0200 > > Hello > > I have three boxes running linux or freebsd. > > A is a loadbala

Netmap. Example to understand?

2014-10-09 Thread Jog Lie
Hello I have three boxes running linux or freebsd. A is a loadbalancer to b and c. Same network. A has three nics: one for internet, one connected with B and one connected with C to avoid another switch for a small configuration. I wish to understand how netmap can help me saturating a 10Gbit l