[Gambas-user] PING > Benoît (ServerSocket)

[Ron]

Kad Mann wrote:
> On Thu, 2009-11-05 at 14:45 +0100, Jean-Yves F. Barbier wrote:
>   
>> Benoît Minisini a écrit :
>> ...
>>     
>>> But if rebooting your Linux server does not make the application work again, I 
>>> can't really suspect Gambas, as it does not save anything on the hard disk, 
>>> especially the network component.
>>>
>>> Did you test the connection with telnet, or any other non-Gambas program? Did 
>>> you test another socket server application not made in Gambas?
>>>
>>> The only possibility I see would be a memory corruption in the network 
>>> component - it is possible, I didn't write it :-). By reading the source code 
>>> of the Listen() method, I didn't see anything that could lead to that. But I 
>>> will check again.
>>>       
>> May be a RAM is corrupted, running a full memtest86+ could reveal that
>> (well @ least 2 tests: while physically swapping RAMs between tests in order
>> to completely test low addresses of the 1st one)
>>     
>
> Gawd! I've got 8Gig to test. I'll take the advice, just to make sure but
> the problem has happened on two machines with the very same symptoms.
> Thanks.
>
>   
Just thinking out loud maybe it helps.

You talked about a Windows machine at one end, maybe also check its 
firewall and antivirus settings, if any.
I know for example Kaspersky 2010 sits between all the network 
connections you have, maybe some strange pattern is seen as evil, and 
the connection gets cut off in the middle. Check logs.

If you transfer lots of (other) network data, make sure your 
switches/pcs/routers's network interfaces etc. are in the correct mode, 
full duplex/duplex, lots of equipment doesn't negotiate mode correctly, 
resulting in one device in half- and the switch in full duplex for 
example, it seems to work, but not 100%... you get network errors, and 
strange behavior.

I couldn't see if you are running on 64 Bits Linux, I have had many 
occasions of problems at the startup of my project, some times my 
project started 30 times in a row without any problem and the 31th time 
bingo! It made me nuts back then... It had to do with memory space 
Gambas was loaded in, if it was in 64Bit memory space, it was unstable.  
(those bugs are fixed by Benoit so don't worry)
Just to illustrate that sometimes you oversee something obvious at 
first, and you point at the wrong code just because you don't know where 
to look.

My 2 cents.

Regards,
Ron_2nd.