Res: [ts-7000] Re: My TS-7800 go's tropo approximately every 3 months +/- a month.

[Lissandro <>]

Hi.

 

I would very, very carefully check all pairs of memory allocation/deallocation, if is the case, and if in cases where you use stack variables and/or much (recursive?) calls in your software, if is not the case to have static variables or dinamic (heap) allocation. This sounds also as a possible "wild pointer" case, or a very small memory leak.

 

I would triple check all references, pointers, loop/index limits.

 

You could have a variable, say, an unsigned long, that somewhere in future processing time will try to handle a negative value or so and the program to go berserk. ItÂs more common to happen than you think, even with experienced programmers. IÂve seen ALL of those to happen in the last 21 years "on the road".

 

Usually a program that would take 10 lines of code to do something can end up with 80 lines total if you include care checking of everything that can go wrong and out of the regular processing path...

 

 

Cheers

Lissandro.

---

De: wildpossum928 <>
Para:
Enviadas: TerÃa-feira, 7 de Dezembro de 2010 22:25:36
Assunto: [ts-7000] Re: My TS-7800 go's tropo approximately every 3 months +/- a month.

 

I originally took the same investigative route. Only to find that there is (were) no crontab tasks scheduled or run over the intervening period (last 4 months). I certainly wish is was, it would make the investigations so much simpler.

As I alluded too on another post.
"On the multiple crontab process entries is very very strange indeed as there are no crontab tasks placed at any time by any user (my programs) - I am the only user on the system per say. I suspect the multiple entries of crontab are some result, rather than the cause."

I don't know if this is folly on my part or not.

Currently I am thinking the only way I am going to solve this horride problem is to take snapshots of /proc and monitor all process requirements over the next three months or so.

Anyone go any other ideas?

Thanks for your reply Ian.

--- In ts-7000%40yahoogroups.com, Ian Thompson <> wrote:
>
> It sounds to me like you have a process being started by CRON that is
> not cleaning up after itself and slowly using up system resources.
> Have you checked all of the CRON jobs?
>
> Ian T.
>
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