[Serusers] Re: [Serhelp] FW: SER crashing because of too many interfaces

[Andrei Pelinescu-Onciul]

On Feb 11, 2004 at 16:06, Jan Knoppers <knoppers at astent.nl> wrote:
> 
> Hi,
> 
>   A while back I reported a problem with SER given a memory allocation
> failure. At that time we were still using SER 0.8.11. Early this week we
> repeated our test with 0.8.12. Unfortunately the problem is still there.
> Below you will see the error output.
> 
> Although we initially believed SER to crash, this is not the case, so we
> cannot send you a coredump.
> 
> Below you will find the error output. In this example we force SER to
> listen to 2 interfaces by specifying the respective IP addresses in the
> ser.cfg file. As you see we get 2 "memory allocation failure" error
> messages. If we increase the number of interfaces to say 5, we also get
> 5 of these "memory allocation failure" error messages.

> 
> The server has a very large number of ppp interfaces defined (several
> thousands). This is the source that brings the error to the surface. If
> we decrease this number to a much lower figure, say 30, the problem is
> gone. We believe the problem to be in main.c and that malloc is given
> error message.
> 
> Because of this problem, SER fails to function on our server.
> 
> Could you take a look into this matter?
> 


What it probably happens is ser doesn't have enough space to hold the
list of interfaces array, when it tries to enumerate all the interfaces.

Try to increase PKG_MEM_POOL_SIZE in config.h. Its default value is 1MB
 and all ser local (per process, not shared) memory allocations cannot
 exceed it.


Andrei