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Good afternoon,<br>
<br>
Sorry for the late answer. I did not install web10G myself but the
person who did it gave me the following informations:<br>
<br>
" I have used Ubuntu 13.04 which comes with Kernel 3.8.
<br>
1) this is the link for the kernel
<br>
<a class="moz-txt-link-freetext"
href="https://www.kernel.org/pub/linux/kernel/v3.x/linux-3.8.tar.gz">https://www.kernel.org/pub/linux/kernel/v3.x/linux-3.8.tar.gz</a>
<br>
<br>
2) this is the link for the appropriate version of web10g
<br>
<a class="moz-txt-link-freetext"
href="http://web10g.org/index.php?option=com_remository&Itemid=65&func=fileinfo&id=63">http://web10g.org/index.php?option=com_remository&Itemid=65&func=fileinfo&id=63</a>
<br>
<br>
Please read the help file attached to install the kernel patch and
then follow the install instruction in web10g package to install
libmnl and eventually WEb10g.
"<br>
<div class="moz-cite-prefix"><br>
I do not know if this should help finding the errors I have<br>
<br>
My script is using listcnxs cmd and poll it every 100 ms. A
sequence of bash cmds is then launched to format the result of
this cmd and check the state of the cnxs. When the connection is
detected as finished (one of the final state of TCP) the formatted
logs are uploaded to a remote database.<br>
<br>
Please keep me updates if you have some news !<br>
<br>
Thank you very much<br>
<br>
Hadrien<br>
<br>
Le 12/03/2014 02:27, Chris Rapier a écrit :<br>
</div>
<blockquote
cite="mid:144b3e6c000.280c.2a8bf4f834b7b88e94ad3e8cefcb48f2@psc.edu"
type="cite">No need to apologize. This is the sort of information
we need. I'll be discussing this withthe team this week and
running some of our own tests. I'll be back in touch late tomorrow
to get more information.
<br>
<br>
<br>
Sent with AquaMail for Android
<br>
<a class="moz-txt-link-freetext" href="http://www.aqua-mail.com">http://www.aqua-mail.com</a>
<br>
<br>
<br>
On March 11, 2014 8:06:37 PM Sebastian Zander
<a class="moz-txt-link-rfc2396E" href="mailto:szander@swin.edu.au"><szander@swin.edu.au></a> wrote:
<br>
<br>
<blockquote type="cite">Hi Chris,
<br>
<br>
Sorry for crashing into this thread, but we just stumbled over
what looks like exactly the same problem.
<br>
<br>
We run a series of experiments where in each experiment we
generate TCP traffic for a few minutes, each experiment has
about 10 flows or so and in addition we have SSH control traffic
before and after. We use openSuSE with a vanilla Linux 3.9.8
kernel with the 0.7 kernel patch and 2.0.7 userland code. We
poll web10g often, time between poll is 10-20ms. Our machines
(with 4GB RAM and 1GB swap) crash after a number of experiments,
in the order of 50--100 experiments.
<br>
<br>
Different error messages, but at least some point to memory
issues:
<br>
"Kernel panic - not syncing: Out of memory and no killable
processes..."
<br>
"Kernel panic - not syncing: Watchdog detected hard LOCKUP on
cpu 0"
<br>
I have screen dumps of two crashes, can send if you want them.
<br>
<br>
Quick and not very thorough look at memory consumption seemed to
indicate we're loosing memory somewhere, albeit very slowly.
With same kernel but without polling web10g we seem to have no
issues. Since it takes a while to crash, as a workaround we
reboot more often now...
<br>
<br>
Unfortunately, I'm a bit limited on accessing the actual testbed
at the moment due to experiments running, but let me know if you
need more information.
<br>
<br>
Cheers,
<br>
<br>
Sebastian
<br>
<br>
On 12/03/2014 3:25 AM, rapier wrote:
<br>
> I'd like to apologize for the delay on this. Since you
aren't subscribed
<br>
> to the list this ended up being held by our mailing list
software. I've
<br>
> been swamped with grant writing work and getting web10g
finalized.
<br>
>
<br>
> Could you tell me a bit more about the parameters of your
experiment?
<br>
> How long is the tcp flow running? At what point do you run
out of
<br>
> memory? Are there any error messages that you are seeing on
crash? Which
<br>
> version of the kernel patch set and userland are you using?
<br>
>
<br>
> Let me know and we'll look into this. If you have specific
code that you
<br>
> are using to run this experiment it would you mind sending
it to me so I
<br>
> can try to recreate the problems?
<br>
>
<br>
> Chris Rapier
<br>
>
<br>
>
<br>
> On 2/24/14, 6:10 AM, Hadrien Hours wrote:
<br>
>> Hi,
<br>
>>
<br>
>> I am not sure whether this is the correct mailing list
to ask this
<br>
>> question or not but that's the best I have found.
<br>
>>
<br>
>> I am currently using the latest version of web10g on
Ubuntu 13.04
<br>
>>
<br>
>> I am trying to track the evolution of TCP state by
polling tcp stack
<br>
>> parameters every 100 ms. By doing so I have the machine
crashing (memory
<br>
>> shortage while my conf on the machine has 4GB)
<br>
>>
<br>
>> Reducing to 1s the machine ends up crashing also but
after a longer
<br>
>> running time (up to several hours so far).
<br>
>>
<br>
>> Does someone already experiment the same problem ? And
had found a
<br>
>> solution ?
<br>
>>
<br>
>> Thank you very much !
<br>
>>
<br>
>> Hadrien
<br>
>> _______________________________________________
<br>
>> Web10g-user mailing list
<br>
>> <a class="moz-txt-link-abbreviated" href="mailto:Web10g-user@web10g.org">Web10g-user@web10g.org</a>
<br>
>> <a class="moz-txt-link-freetext" href="https://lists.psc.edu/mailman/listinfo/web10g-user">https://lists.psc.edu/mailman/listinfo/web10g-user</a>
<br>
>>
<br>
>> To UNSUBSCRIBE visit
<a class="moz-txt-link-freetext" href="https://lists.psc.edu/mailman/unsubscribe/web10g-user">https://lists.psc.edu/mailman/unsubscribe/web10g-user</a>
<br>
>>
<br>
> _______________________________________________
<br>
> Web10g-user mailing list
<br>
> <a class="moz-txt-link-abbreviated" href="mailto:Web10g-user@web10g.org">Web10g-user@web10g.org</a>
<br>
> <a class="moz-txt-link-freetext" href="https://lists.psc.edu/mailman/listinfo/web10g-user">https://lists.psc.edu/mailman/listinfo/web10g-user</a>
<br>
>
<br>
> To UNSUBSCRIBE visit
<a class="moz-txt-link-freetext" href="https://lists.psc.edu/mailman/unsubscribe/web10g-user">https://lists.psc.edu/mailman/unsubscribe/web10g-user</a>
<br>
>
<br>
>
<br>
<br>
<br>
--
<br>
Sebastian Zander
<br>
<a class="moz-txt-link-freetext" href="http://caia.swin.edu.au/cv/szander/">http://caia.swin.edu.au/cv/szander/</a>
<br>
</blockquote>
<br>
<br>
</blockquote>
<br>
<div class="moz-signature">-- <br>
<i> Hadrien Hours <br>
PhD Student at Eurecom <br>
Networking and Security Dept.</i></div>
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