ndt-users list created

[Richard Carlson <>]

Hi Chris;

Great.  and can you confirm that you are getting test sig 11 faults by  
running the web100srv in debug mode (web100srv -ddddd).

Rich

On Sep 1, 2009, at 10:36 AM, Chris Welti wrote:

> Hi Rich,
>
> It seems to be using 0.9.8-5:
>
> : 
> root@lsmp2[sbin];
>  dpkg -l | grep libpcap
> ii  libpcap-dev                                        
> 0.9.8-5                    development library for libpcap  
> (transitional package)
> ii  libpcap0.8                                         
> 0.9.8-5                    system interface for user-level packet  
> capture
> ii  libpcap0.8-dev                                     
> 0.9.8-5                    development library and header files for  
> libpcap0.8
>
> Regards,
> Chris
>
> Richard Carlson wrote:
> > Hi Chris;
> >
> > I pulled the 3.5.6 tarball down and tested it on 2 systems.  It ran
> > properly.
> >
> > Looking again at the trace Christoph sent I see the following:
> >
> > 690876 kbps outbound
> > > > > send_msg: type=5, len=6
> > Signal USR1(10) sent to child [3744]
> > Signal 10 received by process 3744
> > Received SIGUSRx signal terminating data collection loop for pid=3744
> > Sending pkt-pair data back to parent on pipe 8, 9
> > fwd.saddr = f006c0a:3451, rev.saddr = dd70b0a:3002
> > 01:02:46.369960   10.108.0.15:3451 --> 10.11.215.13:3002 Collected
> > pkt-pair data max = 334203
> > 01:02:46.369960   10.11.215.13:3002 --> 10.108.0.15:3451 Collected
> > pkt-pair data max = 81670
> > 128 bytes read '  1 0 0 0 19 12738 129915 1642 108553 334203 0 6705
> > 219.82 0 0 0 1 0 7' from monitor pipe
> > 128 bytes read '  0 0 1 0 3 31 49754 81670 19693 11227 1 0 581.71  
> > 21 1
> > 162358 0 1 7' from monitor pipe
> > > > > send_msg: type=6, len=0
> > Signal 11 received by process 3744
> > Signal 17 received by process 3741
> > <------------------------->
> > <-- S2C throughput test -->
> > [ test results and debugging info followed by]
> > Signal USR2(12) sent to child [3746]
> > Signal 12 received by process 3746
> > Received SIGUSRx signal terminating data collection loop for pid=3746
> > Sending pkt-pair data back to parent on pipe 8, 9
> > fwd.saddr = dd70b0a:3003, rev.saddr = f006c0a:3461
> > 01:02:56.724367   10.11.215.13:3003 --> 10.108.0.15:3461 Collected
> > pkt-pair data max = 18667
> > 01:02:56.724367   10.108.0.15:3461 --> 10.11.215.13:3003 Collected
> > pkt-pair data max = 65475
> > Read '  1 0 0 0 4 661 18667 6971 5501 5721 0 5377 976.37 0 0 0 1 0 7'
> > from monitor pipe
> > Read '  0 0 0 1 367 9334 40681 26321 35413 65475 39990 34285 663.83
> > 39864 40036 171967 0 39990 7' from monitor pipe
> > 550764 kbps inbound
> > [ followed by the test results being sent to the client and ]
> > Signal 11 received by process 3746
> > Signal 17 received by process 3741
> > Protocol error!
> > > > > send_msg: type=7, len=61
> > S2C throughput test FAILED!
> >
> > When I run tests on my servers I don't get the "Signal 11 receive by
> > process xxxx" message.  Instead I see the lines
> > pcap_loop exited recvfrom: Bad file descriptor
> > Pkt-Pair data collection ended, waiting for signal to terminate  
> > process
> >
> > Signal 11 is a SIGSEGV (invalid memory reference) and I did make  
> > changes
> > to the pcap routines to automatically detect which interface the  
> > server
> > is using.
> >
> > According to yum I have 0.9.8-3.fc10_x86_64 on my development  
> > system and
> > 0.9.4 on my production server.
> > Given the code runs on my servers, I need to ask what version of the
> > pcap lib development package are you using?
> >
> > Rich
> >
> > On Sep 1, 2009, at 7:39 AM, Chris Welti wrote:
> >
> > > Hi Rich,
> > >
> > > I've just upgraded one of our NDT servers from 3.4.4 to 3.5.6.
> > > I'm observing the same behaviour as listed in this thread:
> > >
> > > ** Starting test 1 of 1 **
> > > Connected to: lsmp2  --  Using IPv4 address
> > > Checking for Middleboxes . . . . . . . . . . . . . . . . . .  Done
> > > checking for firewalls . . . . . . . . . . . . . . . . . . .  Done
> > > running 10s outbound test (client-to-server [C2S]) . . . . .  
> > > 91.78Mb/s
> > > running 10s inbound test (server-to-client [S2C]) . . . . . .  
> > > 85.01Mb/s
> > > S2C throughput test: Received wrong type of the message
> > > ERROR MSG: Server (S2C throughput test): Invalid S2C throughput  
> > > received
> > > S2C throughput test FAILED!
> > > Server unable to determine bottleneck link type.
> > > Information: Other network traffic is congesting the link
> > >
> > > There are test results for both C2S and S2C tests, but an error is
> > > reported anyway.
> > > On the server there are also error messages (Protocol error! S2C
> > > throughput test FAILED!)
> > >
> > > Anyway, I've tried to install all the 3.5. versions before and it
> > > seems to me that this bug was introduced with v3.5.3.
> > > Using v3.5.2 or v3.5.1 it works as a charm on the same system  
> > > (debian,
> > > lenny, 2.6.26-web100)
> > > v3.5.3, v3.5.4, v3.5.5 and v3.5.6 all produce the same error  
> > > output as
> > > above.
> > >
> > > Maybe that helps... Regards,
> > > Chris
> > >
> > > Galuschka Christoph wrote:
> > > > Hello Richard,
> > > >
> > > > I'm currently running the tests with 2.6.30.5 and IE6. JAVA - if
> > > > relevant - is 1.6.11.
> > > > The funny thing also is, I do get results in the webbrowser, the  
> > > > client
> > > > just doesn't finish correctly.
> > > >
> > > > I will repair the WAIT-comment thing on monday (sorry, I'm not  
> > > > the best
> > > > in C)
> > > >
> > > > Regards
> > > > Christoph
> > > >
> > > > -----------------------------------------
> > > > Ing. Christoph Galuschka
> > > >
> > > > TIWAG-Tiroler Wasserkraft AG
> > > > Bereich IT/Betrieb und Services
> > > > Eduard-Wallnöfer-Platz 2
> > > > 6010 Innsbruck
> > > > T: +43 (0)50607 21832
> > > > F: +43 (0)50607 41832
> > > > www.tiroler-wasserkraft.at <http://www.tiroler-wasserkraft.at>
> > > > -----------------------------------------
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> > > > Sitz der Gesellschaft: Innsbruck
> > > > DVR: 0164089
> > > >
> > > > >
> > > >
> > > > Richard Carlson
> > > >
> > > >  
> > > > <mailto:>
> > > > 1000 Oakbrook Dr
> > > > Ann Arbor, MI  48104
> > > >
> > > > P: 734-352-7043
> > > > C: 630-251-4572
> >
> > Richard Carlson
> >
> >  
> > <mailto:>
> > 1000 Oakbrook Dr
> > Ann Arbor, MI  48104
> >
> > P: 734-352-7043
> > C: 630-251-4572

Richard Carlson

1000 Oakbrook Dr
Ann Arbor, MI  48104

P: 734-352-7043
C: 630-251-4572