[En-Nut-Discussion] TCP uses to much memory with zero window?

Bernd Walter enut at cicely.de
Tue Jun 9 22:29:19 CEST 2009

On Tue, Jun 09, 2009 at 04:35:02PM +0200, Bernd Walter wrote:
> On Tue, Jun 09, 2009 at 01:03:15PM +0200, Harald Kipp wrote:
> > Bernd Walter wrote:
> > Any problems with 4.8? Just asking because I'd like to setup a similar
> > environment here for testing and would prefer to test the latest stable
> > version.
> Looking at the code it seems that it is the same in this case, but I
> can't test myself yet.

Updating worked after a few minor compile time problems.
System is runnning with 4.8.2.
I have a bit more free RAM after the update :-)
But the network problem is still there.
I started with about 26k free and it went below 3k and finally the
system hang.
Socket setup was default again.
Maybe the problem with slow processing was my fault, because I had
only a single packet in the buffer with my low settings, but I can't
tell because the system died before it really started the short line
pattern in my testjob.
The testjobs starts with several long lines, which processes very slow
and finishes with many short lines, which processes coordinates much

B.Walter <bernd at bwct.de> http://www.bwct.de
Modbus/TCP Ethernet I/O Baugruppen, ARM basierte FreeBSD Rechner uvm.

More information about the En-Nut-Discussion mailing list