<!DOCTYPE HTML PUBLIC "-//W3C//DTD HTML 3.2//EN">
<HTML>
<HEAD>
<META HTTP-EQUIV="Content-Type" CONTENT="text/html; charset=us-ascii">
<META NAME="Generator" CONTENT="MS Exchange Server version 6.0.6618.4">
<TITLE>cmpost establisehd connections are very fragile!?</TITLE>
</HEAD>
<BODY>
<!-- Converted from text/rtf format -->
<P DIR=LTR><SPAN LANG="de"></SPAN><SPAN LANG="de"></SPAN><SPAN LANG="en-gb"><FONT SIZE=2 FACE="Arial">Sean,</FONT></SPAN><SPAN LANG="de"></SPAN><SPAN LANG="de"></SPAN><SPAN LANG="en-gb"></SPAN></P>
<P DIR=LTR><SPAN LANG="de"></SPAN><SPAN LANG="de"></SPAN><SPAN LANG="en-gb"><FONT SIZE=2 FACE="Arial">got</FONT></SPAN><SPAN LANG="de"></SPAN><SPAN LANG="de"></SPAN><SPAN LANG="en-gb"> <FONT SIZE=2 FACE="Arial">my</FONT></SPAN><SPAN LANG="de"></SPAN><SPAN LANG="de"></SPAN><SPAN LANG="en-gb"> <FONT SIZE=2 FACE="Arial">libibverbs/libibcm</FONT></SPAN><SPAN LANG="de"></SPAN><SPAN LANG="de"></SPAN><SPAN LANG="en-gb"> <FONT SIZE=2 FACE="Arial">c</FONT></SPAN><SPAN LANG="de"></SPAN><SPAN LANG="de"></SPAN><SPAN LANG="en-gb"><FONT SIZE=2 FACE="Arial">ode working</FONT></SPAN><SPAN LANG="de"></SPAN><SPAN LANG="de"></SPAN><SPAN LANG="en-gb"> <FONT SIZE=2 FACE="Arial">on SLES9 x86_64</FONT></SPAN><SPAN LANG="de"></SPAN><SPAN LANG="de"></SPAN><SPAN LANG="en-gb"> <FONT SIZE=2 FACE="Arial">after</FONT></SPAN><SPAN LANG="de"></SPAN><SPAN LANG="de"></SPAN><SPAN LANG="en-gb"> <FONT SIZE=2 FACE="Arial">following</FONT></SPAN><SPAN LANG="de"></SPAN><SPAN LANG="de"></SPAN><SPAN LANG="en-gb"><FONT SIZE=2 FACE="Arial"> all the tricks in cmpost.c</FONT></SPAN></P>
<P DIR=LTR><SPAN LANG="de"></SPAN><SPAN LANG="de"></SPAN><SPAN LANG="en-gb"><FONT SIZE=2 FACE="Arial">What I don</FONT></SPAN><SPAN LANG="de"></SPAN><SPAN LANG="de"></SPAN><SPAN LANG="en-gb"><FONT SIZE=2 FACE="Arial">’</FONT></SPAN><SPAN LANG="de"></SPAN><SPAN LANG="de"></SPAN><SPAN LANG="en-gb"><FONT SIZE=2 FACE="Arial">t</FONT></SPAN><SPAN LANG="de"></SPAN><SPAN LANG="de"></SPAN><SPAN LANG="en-gb"> <FONT SIZE=2 FACE="Arial">understand</FONT></SPAN><SPAN LANG="de"></SPAN><SPAN LANG="de"></SPAN><SPAN LANG="en-gb"><FONT SIZE=2 FACE="Arial"> why the</FONT></SPAN><SPAN LANG="de"></SPAN><SPAN LANG="de"></SPAN><SPAN LANG="en-gb"> <FONT SIZE=2 FACE="Arial">local_cm_response_timeout</FONT></SPAN><SPAN LANG="de"></SPAN><SPAN LANG="de"></SPAN><SPAN LANG="en-gb"><FONT SIZE=2 FACE="Arial"> set to 254 instead of 20 can block</FONT></SPAN><SPAN LANG="de"></SPAN><SPAN LANG="de"></SPAN><SPAN LANG="en-gb"> <FONT SIZE=2 FACE="Arial">IBV_WR_SEND</FONT></SPAN><SPAN LANG="de"></SPAN><SPAN LANG="de"></SPAN><SPAN LANG="en-gb"><FONT SIZE=2 FACE="Arial"> from client to server while the opposite direction from server to client works</FONT></SPAN><SPAN LANG="de"></SPAN><SPAN LANG="de"></SPAN><SPAN LANG="en-gb"><FONT SIZE=2 FACE="Arial">!?</FONT></SPAN><SPAN LANG="de"></SPAN><SPAN LANG="de"></SPAN><SPAN LANG="en-gb"></SPAN></P>
<P DIR=LTR><SPAN LANG="en-gb"><FONT SIZE=2 FACE="Arial">You don</FONT></SPAN><SPAN LANG="de"></SPAN><SPAN LANG="de"></SPAN><SPAN LANG="en-gb"><FONT SIZE=2 FACE="Arial">’</FONT></SPAN><SPAN LANG="de"></SPAN><SPAN LANG="de"></SPAN><SPAN LANG="en-gb"><FONT SIZE=2 FACE="Arial">t have a more detailed description to the libibcm parameters? There are a lot mo</FONT></SPAN><SPAN LANG="de"></SPAN><SPAN LANG="de"></SPAN><SPAN LANG="en-gb"><FONT SIZE=2 FACE="Arial">re</FONT></SPAN><SPAN LANG="de"></SPAN><SPAN LANG="de"></SPAN><SPAN LANG="en-gb"><FONT SIZE=2 FACE="Arial"> that I do</FONT></SPAN><SPAN LANG="de"></SPAN><SPAN LANG="de"></SPAN><SPAN LANG="en-gb"><FONT SIZE=2 FACE="Arial">n</FONT></SPAN><SPAN LANG="de"></SPAN><SPAN LANG="de"></SPAN><SPAN LANG="en-gb"><FONT SIZE=2 FACE="Arial">’</FONT></SPAN><SPAN LANG="de"></SPAN><SPAN LANG="de"></SPAN><SPAN LANG="en-gb"><FONT SIZE=2 FACE="Arial">t understand</FONT></SPAN><SPAN LANG="de"></SPAN><SPAN LANG="de"></SPAN><SPAN LANG="en-gb"><FONT SIZE=2 FACE="Arial">. ;-)</FONT></SPAN></P>
<P DIR=LTR><SPAN LANG="de"></SPAN><SPAN LANG="de"></SPAN><SPAN LANG="en-gb"><FONT SIZE=2 FACE="Arial">After having a running gen2 example I moved to my final</FONT></SPAN><SPAN LANG="de"></SPAN><SPAN LANG="de"></SPAN><SPAN LANG="en-gb"> <FONT SIZE=2 FACE="Arial">distribution</FONT></SPAN><SPAN LANG="de"></SPAN><SPAN LANG="de"></SPAN><SPAN LANG="en-gb"><FONT SIZE=2 FACE="Arial"> which is SLES 10 x86_64. I have to do this since I</FONT></SPAN><SPAN LANG="de"></SPAN><SPAN LANG="de"></SPAN><SPAN LANG="en-gb"> <FONT SIZE=2 FACE="Arial">have</FONT></SPAN><SPAN LANG="de"></SPAN><SPAN LANG="de"></SPAN><SPAN LANG="en-gb"> <FONT SIZE=2 FACE="Arial">to use a 32 Bit executable for 32-Bit and 64 Bit machines and this is supported</FONT></SPAN><SPAN LANG="de"></SPAN><SPAN LANG="de"></SPAN><SPAN LANG="en-gb"> <FONT SIZE=2 FACE="Arial">in OFED</FONT></SPAN><SPAN LANG="de"></SPAN><SPAN LANG="de"></SPAN><SPAN LANG="en-gb"> <FONT SIZE=2 FACE="Arial">from SLES10 onwards.</FONT></SPAN><SPAN LANG="de"></SPAN><SPAN LANG="de"></SPAN><SPAN LANG="en-gb"></SPAN></P>
<P DIR=LTR><SPAN LANG="de"></SPAN><SPAN LANG="de"></SPAN><SPAN LANG="en-gb"></SPAN></P>
<P DIR=LTR><SPAN LANG="en-gb"><FONT SIZE=2 FACE="Arial">Coming back to the fragile connection I encountered the same</FONT></SPAN><SPAN LANG="de"></SPAN><SPAN LANG="de"></SPAN><SPAN LANG="en-gb"> <FONT SIZE=2 FACE="Arial">issue where the client can</FONT></SPAN><SPAN LANG="de"></SPAN><SPAN LANG="de"></SPAN><SPAN LANG="en-gb"><FONT SIZE=2 FACE="Arial">’</FONT></SPAN><SPAN LANG="de"></SPAN><SPAN LANG="de"></SPAN><SPAN LANG="en-gb"><FONT SIZE=2 FACE="Arial">t do an IBV_WR_SEND to the server. This time both your cmpost example and my code failed. I tried to reduce the </FONT></SPAN><SPAN LANG="de"></SPAN><SPAN LANG="de"></SPAN><SPAN LANG="en-gb"> <FONT SIZE=2 FACE="Arial">local_cm_response_timeout</FONT></SPAN><SPAN LANG="de"></SPAN><SPAN LANG="de"></SPAN><SPAN LANG="en-gb"><FONT SIZE=2 FACE="Arial"> to 10 but thuis did not help at all</FONT></SPAN><SPAN LANG="de"></SPAN><SPAN LANG="de"></SPAN><SPAN LANG="en-gb"><FONT SIZE=2 FACE="Arial">.</FONT></SPAN></P>
<P DIR=LTR><SPAN LANG="en-gb"><FONT SIZE=2 FACE="Arial">All above</FONT></SPAN><SPAN LANG="de"></SPAN><SPAN LANG="de"></SPAN><SPAN LANG="en-gb"><FONT SIZE=2 FACE="Arial"> i</FONT></SPAN><SPAN LANG="de"></SPAN><SPAN LANG="de"></SPAN><SPAN LANG="en-gb"><FONT SIZE=2 FACE="Arial">s done for 64-Bit executables.</FONT></SPAN><SPAN LANG="de"></SPAN><SPAN LANG="de"></SPAN><SPAN LANG="en-gb"></SPAN></P>
<P DIR=LTR><SPAN LANG="en-gb"><FONT SIZE=2 FACE="Arial">Interesting enough</FONT></SPAN><SPAN LANG="de"></SPAN><SPAN LANG="de"></SPAN><SPAN LANG="en-gb"> <FONT SIZE=2 FACE="Arial">the</FONT></SPAN><SPAN LANG="de"></SPAN><SPAN LANG="de"></SPAN><SPAN LANG="en-gb"> <FONT SIZE=2 FACE="Arial">32 Bit executable</FONT></SPAN><SPAN LANG="de"></SPAN><SPAN LANG="de"></SPAN><SPAN LANG="en-gb"> <FONT SIZE=2 FACE="Arial">of cmpost and my own</FONT></SPAN><SPAN LANG="de"></SPAN><SPAN LANG="de"></SPAN><SPAN LANG="en-gb"> <FONT SIZE=2 FACE="Arial">build on a x86 SLES9 machine did not have the</FONT></SPAN><SPAN LANG="de"></SPAN><SPAN LANG="de"></SPAN><SPAN LANG="en-gb"> <FONT SIZE=2 FACE="Arial">I</FONT></SPAN><SPAN LANG="de"></SPAN><SPAN LANG="de"></SPAN><SPAN LANG="en-gb"><FONT SIZE=2 FACE="Arial">BV_WR_SEND</FONT></SPAN><SPAN LANG="de"></SPAN><SPAN LANG="de"></SPAN><SPAN LANG="en-gb"><FONT SIZE=2 FACE="Arial"> trouble</FONT></SPAN><SPAN LANG="de"></SPAN><SPAN LANG="de"></SPAN><SPAN LANG="en-gb"><FONT SIZE=2 FACE="Arial">.</FONT></SPAN></P>
<P DIR=LTR><SPAN LANG="en-gb"><FONT SIZE=2 FACE="Arial">Thanks in advance for enlighten me</FONT></SPAN><SPAN LANG="de"></SPAN><SPAN LANG="de"></SPAN><SPAN LANG="en-gb"><FONT SIZE=2 FACE="Arial">. ;-)</FONT></SPAN><SPAN LANG="de"></SPAN><SPAN LANG="de"></SPAN><SPAN LANG="en-gb"><BR>
<FONT SIZE=2 FACE="Arial">Thomas Bub</FONT></SPAN><SPAN LANG="de"></SPAN><SPAN LANG="de"></SPAN><SPAN LANG="en-gb"></SPAN></P>
<P DIR=LTR><SPAN LANG="de"></SPAN><SPAN LANG="en-gb"></SPAN></P>
</BODY>
</HTML>